Document:

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                                                                     EXHIBIT 4.4

                     ____________________________________

                         RATIONAL SOFTWARE CORPORATION

                                    ISSUER

                                      TO
            STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A.,

                                    TRUSTEE
                               __________________

                                   INDENTURE

                         Dated as of February 2, 2000

                              ___________________

            5% CONVERTIBLE SUBORDINATED NOTES DUE FEBRUARY 1, 2007

                    _______________________________________
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                         Rational Software Corporation

             5% Convertible Subordinated Notes due February 1, 2007

                         Registration Rights Agreement
                         -----------------------------

                                              February 2, 2000

Goldman, Sachs & Co.,
Credit Suisse First Boston Corporation
Chase Securities Inc.
c/o Goldman, Sachs & Co.
85 Broad Street
New York, New York 10004

Ladies and Gentlemen:

     Rational Software Corporation, a Delaware corporation (the "Company"),
proposes to issue and sell to the Purchasers (as defined herein) upon the terms
set forth in the Purchase Agreement (as defined herein) its 5% Convertible
Subordinated Notes due February 1, 2007 (the "Securities").  As an inducement to
the Purchasers to enter into the Purchase Agreement and in satisfaction of a
condition to the obligations of the Purchasers thereunder, the Company agrees
with the Purchasers for the benefit of Holders (as defined herein) from time to
time of the Registrable Securities (as defined herein) as follows:

     1.   Definitions.

     (a) Capitalized terms used herein without definition shall have the
meanings ascribed to them in the Purchase Agreement.  As used in this Agreement,
the following defined terms shall have the following meanings:

     "Act" or "Securities Act" means the United States Securities Act of 1933,
as amended.

     "Affiliate" of any specified person means any other person which, directly
or indirectly, is in control of, is controlled by, or is under common control
with such specified person.  For purposes of this definition, control of a
person means the power, direct or indirect, to direct or cause the direction of
the management and policies of such person whether by contract or otherwise; and
the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

     "Closing Date" means the First Time of Delivery as defined in the Purchase
Agreement.
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     "Commission" means the United States Securities and Exchange Commission, or
any other federal agency at the time administering the Exchange Act or the
Securities Act, whichever is the relevant statute for the particular purpose.

     "Common Stock" means the Company's common stock, par value $0.01 per share.

     "DTC" means The Depository Trust Company.

     "Effectiveness Period" has the meaning assigned thereto in Section 2(b)(i)
hereof.

     "Effective Time" means the date on which the Commission declares the Shelf
Registration Statement effective or on which the Shelf Registration Statement
otherwise becomes effective.

     "Electing Holder" has the meaning assigned thereto in Section 3(a)(3)
hereof.

     "Exchange Act" means the United States Securities Exchange Act of 1934, as
amended.

     "Holder" means, any person that is the record owner of Registrable
Securities (and includes any person that has a beneficial interest in any
Registrable Security in book-entry form).

     "Indenture" means the Indenture, dated as of February 2, 2000, between the
Company and State Street Bank and Trust Company of California N.A., as amended
and supplemented from time to time in accordance with its terms.

     "Managing Underwriters" means the investment banker or investment bankers
and manager or managers that shall administer an underwritten offering, if any,
conducted pursuant to Section 7 hereof.

     "NASD Rules" means the Rules of the National Association of Securities
Dealers, Inc., as amended from time to time.

     "Notice and Questionnaire" means a Notice of Registration Statement and
Selling Securityholder Questionnaire substantially in the form of Exhibit A
hereto.

     The term "person" means an individual, partnership, corporation, trust or
unincorporated organization, or a government or agency or political subdivision
thereof.

     "Prospectus" means the prospectus (including, without limitation, any
preliminary prospectus, any final prospectus and any prospectus that discloses
information previously omitted from a prospectus filed as part of an effective
registration statement in reliance upon Rule 430A under the Act) included in the
Shelf Registration Statement, as amended or supplemented by any prospectus
supplement with respect to the terms of the offering of any portion of the
Registrable Securities covered by the Shelf Registration Statement and by all
other amendments and supplements to such prospectus, including all material
incorporated by

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reference in such prospectus and all documents filed after the date of such
prospectus by the Company under the Exchange Act and incorporated by reference
therein.

     "Purchase Agreement" means the purchase agreement, dated as of January 27,
2000, between the Purchasers and the Company relating to the Securities.

     "Purchasers" means the Purchasers named in Schedule I to the Purchase
Agreement.

     "Registrable Securities" means all or any portion of the Securities issued
from time to time under the Indenture in registered form and the shares of
Common Stock issuable upon conversion of such Securities; provided, however,
                                                          --------  -------
that a security ceases to be a Registrable Security when it is no longer a
Restricted Security.

     "Restricted Security" means any Security or share of Common Stock issuable
upon conversion thereof except any such Security or share of Common Stock which
(i) has been effectively registered under the Securities Act and sold in a
manner contemplated by the Shelf Registration Statement, (ii) has been
transferred in compliance with Rule 144 under the Securities Act (or any
successor provision thereto) or is transferable pursuant to paragraph (k) of
such Rule 144 (or any successor provision thereto), (iii) has been sold in
compliance with Regulation S under the Securities Act (or any successor thereto)
and does not constitute the unsold allotment of a distributor within the meaning
of Regulation S under the Securities Act, or (iv) has otherwise been transferred
and a new Security or share of Common Stock not subject to transfer restrictions
under the Securities Act has been delivered by or on behalf of the Company in
accordance with Section 3.3 of the Indenture.

     "Rules and Regulations" means the published rules and regulations of the
Commission promulgated under the Securities Act or the Exchange Act, as in
effect at any relevant time.

     "Shelf Registration" means a registration effected pursuant to Section 2
hereof.

     "Shelf Registration Statement" means a "shelf" registration statement filed
under the Securities Act providing for the registration of, and the sale on a
continuous or delayed basis by the Holders of, all of the Registrable Securities
pursuant to Rule 415 under the Securities Act and/or any similar rule that may
be adopted by the Commission, filed by the Company pursuant to the provisions of
Section 2 of this Agreement, including the Prospectus contained therein, any
amendments and supplements to such registration statement, including post-
effective amendments, and all exhibits and all material incorporated by
reference in such registration statement.

     "Trust Indenture Act" means the Trust Indenture Act of 1939, or any
successor thereto, and the rules, regulations and forms promulgated thereunder,
as the same shall be amended from time to time.

     The term "underwriter" means any underwriter of Registrable Securities in
connection with an offering thereof under a Shelf Registration Statement.

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     (b)  Wherever there is a reference in this Agreement to a percentage of the
"principal amount" of Registrable Securities or to a percentage of Registrable
Securities, Common Stock shall be treated as representing the principal amount
of Securities which was surrendered for conversion or exchange in order to
receive such number of shares of Common Stock.

     2.   Shelf Registration.

     (a)  The Company shall, no later than 90 calendar days following the
Closing Date, file with the Commission a Shelf Registration Statement relating
to the offer and sale of the Registrable Securities by the Holders from time to
time in accordance with the methods of distribution elected by such Holders and
set forth in such Shelf Registration Statement and, thereafter, shall use its
reasonable efforts to cause such Shelf Registration Statement to be declared
effective under the Act no later than 180 calendar days following the Closing
Date; provided, however, that the Company may, upon written notice to all
Holders, postpone having the Shelf Registration Statement declared effective for
a reasonable period not to exceed 90 days if the Company possesses material non-
public information, the disclosure of which would have a material adverse effect
on the Company and its subsidiaries taken as a whole; provided, further,
however, that no Holder shall be entitled to be named as a selling
securityholder in the Shelf Registration Statement or to use the Prospectus
forming a part thereof for resales of Registrable Securities unless such Holder
is an Electing Holder.

     (b)  The Company shall use its best efforts:

          (i)   To keep the Shelf Registration Statement continuously effective
     in order to permit the Prospectus forming part thereof to be usable by
     Electing Holders, subject to Section 3(d)(v), until the earliest of (1) the
     sale of all Registrable Securities registered under the Shelf Registration
     Statement; (2) the expiration of the period referred to in Rule 144(k) of
     the Act with respect to all Registrable Securities held by Electing Holders
     that are not Affiliates of the Company; and (3) two years from the date
     (the "Effective Date") the Securities are issued (such period being
     referred to herein as the "Effectiveness Period");

          (ii)  After the Effective Time of the Shelf Registration Statement,
     promptly upon the request of any Holder of Registrable Securities that is
     not then an Electing Holder, to take any action reasonably necessary to
     enable such Holder to use the Prospectus forming a part thereof for resales
     of Registrable Securities, including, without limitation, any action
     necessary to identify such Holder as a selling securityholder in the Shelf
     Registration Statement; provided, however, that nothing in this
     subparagraph shall relieve such Holder of the obligation to return a
     completed and signed Notice and Questionnaire to the Company in accordance
     with Section 3(a)(ii) hereof; and

          (iii) If at any time the Securities, pursuant to Article XII of the
     Indenture, are convertible into securities other than Common Stock, the
     Company shall, or shall cause any successor under the Indenture to, cause
     such securities to be included in the Shelf

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     Registration Statement no later than the date on which the Securities may
     then be convertible into such securities.

The Company shall be deemed not to have used its reasonable efforts to keep the
Shelf Registration Statement effective during the requisite period if the
Company voluntarily takes any action that would result in Holders of Registrable
Securities covered thereby not being able to offer and sell any of such
Registrable Securities during that period, unless such action is required by
applicable law and the Company thereafter promptly complies with the
requirements of paragraph 3(j) below.

     (c) The Company may suspend the use of the Prospectus for a period not to
exceed 45 days in any 90-day period or an aggregate of 90 days in any 12-month
period if the Board of Directors of the Company shall have determined in good
faith that because of valid business reasons (not including avoidance of the
Company's obligations hereunder), including the acquisition or divestiture of
assets, pending corporate developments and similar events, it is in the best
interests of the Company to suspend such use, and prior to suspending such use
the Company provides the Holders with written notice of such suspension, which
notice need not specify the nature of the event giving rise to such suspension.

     3.   Registration Procedures.  In connection with the Shelf Registration
Statement, the following provisions shall apply:

     (a) (i)   Not less than 30 calendar days prior to the time the Company
intends in good faith to have the Shelf Registration Statement declared
effective, the Company shall mail the Notice and Questionnaire to the Holders of
Registrable Securities.  No Holder shall be entitled to be named as a selling
securityholder in the Shelf Registration Statement as of the Effective Time, and
no Holder shall be entitled to use the Prospectus forming a part thereof for
resales of Registrable Securities at any time, unless such Holder has returned a
completed and signed Notice and Questionnaire to the Company by the deadline for
response set forth therein; provided, however, Holders of Registrable Securities
shall have at least 28 calendar days from the date on which the Notice and
Questionnaire is first mailed to such Holders to return a completed and signed
Notice and Questionnaire to the Company.

         (ii)  After the Effective Time of the Shelf Registration Statement, the
     Company shall, upon the request of any Holder of Registrable Securities
     that is not then an Electing Holder, promptly send a Notice and
     Questionnaire to such Holder.  The Company shall not be required to take
     any action to name such Holder as a selling securityholder in the Shelf
     Registration Statement or to enable such Holder to use the Prospectus
     forming a part thereof for resales of Registrable Securities until such
     Holder has returned a completed and signed Notice and Questionnaire to the
     Company.

         (iii) The term "Electing Holder" shall mean any Holder of Registrable
     Securities that has returned a completed and signed Notice and
     Questionnaire to the Company in accordance with Section 3(a)(i) or 3(a)(ii)
     hereof.

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     (b)  The Company shall furnish to each Holder who has made an election
pursuant to Section 3(a)(i), prior to the Effective Time, a copy of the Shelf
Registration Statement initially filed with the Commission, and shall furnish to
such Holders, prior to the filing thereof with the Commission, copies of each
amendment thereto and each amendment or supplement, if any, to the Prospectus
included therein, and shall use its reasonable efforts to reflect in each such
document, at the Effective Time or when so filed with the Commission, as the
case may be, such  comments as such Holders and their respective counsel
reasonably may propose.

     (c)  The Company shall promptly take such action as may be necessary so
that (i) each of the Shelf Registration Statement and any amendment thereto and
the Prospectus forming part thereof and any amendment or supplement thereto (and
each report or other document incorporated therein by reference in each case)
complies in all material respects with the Securities Act and the Exchange Act
and the respective rules and regulations thereunder, (ii) each of the Shelf
Registration Statement and any amendment thereto does not, when it becomes
effective, contain an untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading and (iii) each of the Prospectus forming part of the
Shelf Registration Statement, and any amendment or supplement to such
Prospectus, does not during the Effectiveness Period include an untrue statement
of a material fact or omit to state a material fact necessary in order to make
the statements therein, in the light of the circumstances under which they were
made, not misleading.

     (d)  The Company shall promptly advise each Electing Holder, and shall
confirm such advice in writing if so requested by any such Holder:

          (i)   when a Shelf Registration Statement and any amendment thereto
     has been filed with the Commission and when a Shelf Registration Statement
     or any post-effective amendment thereto has become effective, in each case
     making a public announcement thereof by release made to Reuters Economic
     Services and Bloomberg Business News;

          (ii)  of any request by the Commission for amendments or supplements
     to the Shelf Registration Statement or the Prospectus included therein or
     for additional information.

          (iii) of the issuance by the Commission of any stop order suspending
     the effectiveness of the Shelf Registration Statement or the initiation of
     any proceedings for such purpose;

     (iv) of the receipt by the Company of any notification with respect to
     the suspension of the qualification of the securities included in the Shelf
     Registration Statement for sale in any jurisdiction or the initiation of
     any proceeding for such purpose; and

     (v)  of the happening of any event or the existence of any state of
     facts that requires

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     the making of any changes in the Shelf Registration Statement or the
     Prospectus included therein so that, as of such date, such Shelf
     Registration Statement and Prospectus do not contain an untrue statement of
     a material fact and do not omit to state a material fact required to be
     stated therein or necessary to make the statements therein (in the case of
     the Prospectus, in light of the circumstances under which they were made)
     not misleading (which advice shall be accompanied by an instruction to such
     Holders to suspend the use of the Prospectus until the requisite changes
     have been made).

     (e) The Company shall use its best efforts to prevent the issuance, and if
issued to obtain the withdrawal, of any order suspending the effectiveness of
the Shelf Registration Statement at the earliest possible time.

     (f) The Company shall furnish to each Electing Holder, without charge, at
least one copy of the Shelf Registration Statement and all post-effective
amendments thereto, including financial statements and schedules, and, if such
Holder so requests in writing, all reports, other documents and exhibits that
are filed with or incorporated by reference in the Shelf Registration Statement.

     (g) The Company shall, during the Effectiveness Period, deliver to each
Electing Holder, without charge, as many copies of the Prospectus (including
each preliminary Prospectus) included in the Shelf Registration Statement and
any amendment or supplement thereto as such Electing Holder may reasonably
request; and the Company consents (except during the continuance of any event
described in Section 3(d)(v) above) to the use of the Prospectus and any
amendment or supplement thereto by each of the Electing Holders in connection
with the offering and sale of the Registrable Securities covered by the
Prospectus and any amendment or supplement thereto during the Effectiveness
Period.

     (h) Prior to any offering of Registrable Securities pursuant to the Shelf
Registration Statement, the Company shall (i) register or qualify or cooperate
with the Electing Holders and their respective counsel in connection with the
registration or qualification of such Registrable Securities for offer and sale
under the securities or "blue sky" laws of such jurisdictions within the United
States as any Electing Holder may reasonably request, (ii) keep such
registrations or qualifications in effect and comply with such laws so as to
permit the continuance of offers and sales in such jurisdictions for so long as
may be necessary to enable any Electing Holder or underwriter, if any, to
complete its distribution of Registrable Securities pursuant to the Shelf
Registration Statement, and (iii) take any and all other actions necessary or
advisable to enable the  disposition in such jurisdictions of such Registrable
Securities; provided, however, that in no event shall the Company be obligated
to (A) qualify as a foreign corporation or as a dealer in securities in any
jurisdiction where it would not otherwise be required to so qualify but for this
Section 3(h) or (B) file any general consent to service of process in any
jurisdiction where it is not as of the date hereof so subject.

     (i) Unless any Registrable Securities shall be in book-entry only form, the
Company shall cooperate with the Electing Holders to facilitate the timely
preparation and delivery of certificates representing Registrable Securities to
be sold pursuant to the Shelf Registration

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Statement, which certificates, if so required by any securities exchange upon
which any Registrable Securities are listed, shall be penned, lithographed or
engraved, or produced by any combination of such methods, on steel engraved
borders, and which certificates shall be free of any restrictive legends and in
such permitted denominations and registered in such names as Electing Holders
may request in connection with the sale of Registrable Securities pursuant to
the Shelf Registration Statement.

     (j) Upon the occurrence of any fact or event contemplated by paragraph
3(d)(v) above, the Company shall promptly prepare a post-effective amendment to
any Shelf Registration Statement or an amendment or supplement to the related
Prospectus or file any other required document so that, as thereafter delivered
to purchasers of the Registrable Securities included therein, the Prospectus
will not include an untrue statement of a material fact or omit to state any
material fact necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading.  If the Company
notifies the Electing Holders of the occurrence of any event contemplated by
paragraph 3(d)(v) above, the Electing Holder shall suspend the use of the
Prospectus until the requisite changes to the Prospectus have been made.

     (k) Not later than the Effective Time of the Shelf Registration Statement,
the Company shall provide a CUSIP number for the Registrable Securities that are
debt securities.

     (l) The Company shall use its best efforts to comply with all applicable
Rules and Regulations, and to make generally available to its securityholders as
soon as practicable, but in any event not later than eighteen months after (i)
the effective date (as defined in Rule 158(c) under the Securities Act) of the
Shelf Registration Statement, (ii) the effective date of each post-effective
amendment to the Shelf Registration Statement, and (iii) the date of each filing
by the Company with the Commission of an Annual Report on Form 10-K that is
incorporated by reference in the Shelf Registration Statement, an earning
statement of the Company and its subsidiaries complying with Section 11(a) of
the Securities Act and the rules and regulations of the Commission thereunder
(including, at the option of the Company, Rule 158).

     (m) Not later than the Effective Time of the Shelf Registration Statement,
the Company shall cause the Indenture to be qualified under the Trust Indenture
Act; in connection with such qualification, the Company shall cooperate with the
Trustee under the Indenture and the Holders (as defined in the Indenture) to
effect such changes to the Indenture as may be required for such Indenture to be
so qualified in accordance with the terms of the Trust Indenture Act; and the
Company shall execute, and shall use all reasonable efforts to cause the Trustee
to execute, all documents that may be required to effect such changes and all
other forms and documents required to be filed with the Commission to enable
such Indenture to be so qualified in a timely manner.  In the event that any
such amendment or modification referred to in this Section 3(m) involves the
appointment of a new trustee under the Indenture, the Company shall appoint a
new trustee thereunder pursuant to the applicable provisions of the Indenture.

     (n) In the event of an underwritten offering conducted pursuant to Section
6 hereof, the Company shall, if requested, promptly include or incorporate in a
Prospectus supplement or

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post-effective amendment to the Shelf Registration Statement such information as
the Managing Underwriters reasonably agree should be included therein and to
which the Company does not reasonably object and shall make all required filings
of such Prospectus supplement or post-effective amendment as soon as practicable
after it is notified of the matters to be included or incorporated in such
Prospectus supplement or post-effective amendment.

     (o)    The Company shall enter into such customary agreements (including an
underwriting agreement in customary form in the event of an underwritten
offering conducted pursuant to Section 6 hereof) and take all other appropriate
action in order to expedite and facilitate the registration and disposition of
the Registrable Securities, and in connection therewith, if an underwriting
agreement is entered into, cause the same to contain indemnification provisions
and procedures substantially identical to those set forth in Section 5 hereof
with respect to all parties to be indemnified pursuant to Section 5 hereof.

     (p)    The Company shall:

     (i)(A) make reasonably available for inspection by Electing Holders,
     any underwriter participating in any disposition pursuant to the Shelf
     Registration Statement, and any attorney, accountant or other agent
     retained by such Holders or any such underwriter all relevant financial and
     other records, pertinent corporate documents and properties of the Company
     and its subsidiaries, and (B) cause the Company's officers, directors and
     employees to supply all information reasonably requested by such Holders or
     any such underwriter, attorney, accountant or agent in connection with the
     Shelf Registration Statement, in each case, as is customary for similar due
     diligence examinations; provided, however, that all records, information
     and documents that are designated in writing by the Company, in good faith,
     as confidential shall be kept confidential by such Holders and any such
     underwriter, attorney, accountant or agent, unless such disclosure is made
     in connection with a court proceeding or required by law, or such records,
     information or documents become available to the public generally or
     through a third party without an accompanying obligation of
     confidentiality; and provided further that, if the foregoing inspection and
     information gathering would otherwise disrupt the Company's conduct of its
     business, such inspection and information gathering shall, to the greatest
     extent possible, be coordinated on behalf of the Electing Holders and the
     other parties entitled thereto by one counsel designated by and on behalf
     of Electing Holders and other parties; in the event that any Holder,
     underwriter, attorney, accountant or agent is required to disclose
     confidential information of the Company by law or in a court proceeding,
     such Holder, underwriter, attorney, accountant or agent will provide the
     Company with notice of such disclosure requirement and copies of the
     information to be disclosed, if possible, and will cooperate with the
     Company, to the extent reasonably practicable, to limit such disclosure;

        (ii) in connection with any underwritten offering conducted pursuant
     to Section 6 hereof, make such representations and warranties to the
     Holders participating in such underwritten offering and to the Managing
     Underwriters, in form, substance and scope as are customarily made by the
     Company to underwriters in primary underwritten

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     offerings of equity and convertible debt securities and covering matters
     including, but not limited to, those set forth in the Purchase Agreement;

          (iii) in connection with any underwritten offering conducted pursuant
     to Section 6 hereof, obtain opinions of counsel to the Company (which
     counsel and opinions (in form, scope and substance) shall be reasonably
     satisfactory to the Managing Underwriters) addressed to each Holder
     participating in such underwritten offering and the underwriters, covering
     such matters as are customarily covered in opinions requested in primary
     underwritten offerings of equity and convertible debt securities and such
     other matters as may be reasonably requested by such Holders and
     underwriters (it being agreed that the matters to be covered by such
     opinions shall include, without limitation, as of the date of the opinion
     and as of the Effective Time of the Shelf Registration Statement or most
     recent post-effective amendment thereto, as the case may be, the absence
     from the Shelf Registration Statement and the Prospectus, including the
     documents incorporated by reference therein, of an untrue statement of a
     material fact or the omission of a material fact required to be stated
     therein or necessary to make the statements therein not misleading;

          (iv)  in connection with any underwritten offering conducted pursuant
     to Section 6 hereof, obtain "cold comfort" letters and updates thereof from
     the independent public accountants of the Company (and, if necessary, from
     the independent public accountants of any subsidiary of the Company or of
     any business acquired by the Company for which financial statements and
     financial data are, or are required to be, included in the Shelf
     Registration Statement), addressed to each Holder participating in such
     underwritten offering (if such Holder has provided such letter,
     representations or documentation, if any, required for such cold comfort
     letter to be so addressed) and the underwriters, in customary form and
     covering matters of the type customarily covered in "cold comfort" letters
     in connection with primary underwritten offerings;

          (v)   in connection with any underwritten offering conducted pursuant
     to Section 6 hereof, deliver such documents and certificates as may be
     reasonably requested by any Holders participating in such underwritten
     offering and the Managing Underwriters, if any, including, without
     limitation, certificates to evidence compliance with Section 3(j) hereof
     and with any conditions contained in the underwriting agreement or other
     agreements entered into by the Company.

     (q)  The Company will use its reasonable efforts to cause the Common Stock
issuable upon conversion of the Securities to be listed for quotation on the
National Association of Securities Dealers Automated Quotations National Market
System or other stock exchange or trading system on which the Common Stock
primarily trades on or prior to the Effective Time of the Shelf Registration
Statement hereunder.

     (r)  In the event that any broker-dealer registered under the Exchange Act
shall be an "affiliate" (as defined in Rule 2720(b)(1) of the NASD Rules (or any
successor provision thereto)) of the Company or has a "conflict of interest" (as
defined in Rule 2720(b)(7) of the NASD Rules (or any successor provision
thereto)) and such broker-dealer shall underwrite,

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participate as a member of an underwriting syndicate or selling group or assist
in the distribution of any Registrable Securities covered by the Shelf
Registration Statement, whether as a Holder of such Registrable Securities or as
an underwriter, a placement or sales agent or a broker or dealer in respect
thereof, or otherwise, the Company shall assist such broker-dealer in complying
with the requirements of the NASD Rules, including, without limitation, by (A)
engaging a "qualified independent underwriter" (as defined in Rule 2720(b)(15)
of the NASD Rules (or any successor provision thereto)) to participate in the
preparation of the registration statement relating to such Registrable
Securities, to exercise usual standards of due diligence in respect thereto and
to recommend the public offering price of such Registrable Securities, (B)
indemnifying such qualified independent underwriter to the extent of the
indemnification of underwriters provided in Section 5 hereof, and (C) providing
such information to such broker-dealer as may be required in order for such
broker-dealer to comply with the requirements of the NASD Rules.

     (s) The Company shall use its best efforts to take all other steps
necessary to effect the registration, offering and sale of the Registrable
Securities covered by the Shelf Registration Statement contemplated hereby.

     4.  Registration Expenses.  Except as otherwise provided in Section 3, the
Company shall bear all fees and expenses incurred in connection with the
performance of its obligations under Sections 2 and 3 hereof and shall bear or
reimburse the Electing Holders for the reasonable fees and disbursements of a
single counsel selected by a plurality of all Electing Holders who own an
aggregate of not less than 25% of the Registrable Securities covered by the
Shelf Registration Statement to act as counsel therefore in connection
therewith.  Each Electing Holder shall pay all underwriting discounts and
commissions and transfer taxes, if any, relating to the sale or disposition of
such Electing Holder's Registrable Securities pursuant to the Shelf Registration
Statement.

     5.  Indemnification and Contribution.

     (a) Indemnification by the Company. Upon the registration of the
Registrable Securities pursuant to Section 2 hereof, the Company shall indemnify
and hold harmless each Electing Holder and each underwriter, selling agent or
other securities professional, if any, which facilitates the disposition of
Registrable Securities, and each of their respective officers and directors and
each person who controls such Electing Holder, underwriter, selling agent or
other securities professional within the meaning of Section 15 of the Securities
Act or Section 20 of the Exchange Act (each such person being sometimes referred
to as an "Indemnified Person") against any losses, claims, damages or
liabilities, joint or several, to which such Indemnified Person may become
subject under the Securities Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon an untrue statement or alleged untrue statement of a material fact
contained in any Shelf Registration Statement under which such Registrable
Securities are to be registered under the Securities Act, or any Prospectus
contained therein or furnished by the Company to any Indemnified Person, or any
amendment or supplement thereto, or arise out of or are based upon the omission
or alleged omission to state therein a material fact required to be stated
therein or necessary to make the statements therein not misleading, and the
Company hereby

                                       11
<PAGE>

agrees to reimburse such Indemnified Person for any legal or other expenses
reasonably incurred by them in connection with investigating or defending any
such action or claim as such expenses are incurred; provided, however, that the
Company shall not be liable to any such Indemnified Person in any such case to
the extent that any such loss, claim, damage or liability arises out of or is
based upon an untrue statement or alleged untrue statement or omission or
alleged omission made in such Shelf Registration Statement or Prospectus, or
amendment or supplement, in reliance upon and in conformity with written
information furnished to the Company by such Indemnified Person expressly for
use therein.

     (b) Indemnification by the Holders and any Agents and Underwriters.  Each
Electing Holder agrees, as a consequence of the inclusion of any of such
Holder's Registrable Securities in such Shelf Registration Statement, and each
underwriter, selling agent or other securities professional, if any, which
facilitates the disposition of Registrable Securities shall agree, as a
consequence of facilitating such disposition of Registrable Securities,
severally and not jointly, to (i) indemnify and hold harmless the Company, its
directors, officers who sign any Shelf Registration Statement and each person,
if any, who controls the Company within the meaning of either Section 15 of the
Securities Act or Section 20 of the Exchange Act, against any losses, claims,
damages or liabilities to which the Company or such other persons may become
subject, under the Securities Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon an untrue statement or alleged untrue statement of a material fact
contained in such Shelf Registration Statement or Prospectus, or any amendment
or supplement, or arise out of or are based upon the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, in each case to the
extent, but only to the extent, that such untrue statement or alleged untrue
statement or omission or alleged omission was made in reliance upon and in
conformity with written information furnished to the Company by such Holder,
underwriter, selling agent or other securities professional expressly for use
therein, and (ii) reimburse the Company for any legal or other expenses
reasonably incurred by the Company in connection with investigating or defending
any such action or claim as such expenses are incurred.

     (c) Notices of Claims, Etc.  Promptly after receipt by an indemnified party
under subsection (a) or (b) above of notice of the commencement of any action,
such indemnified party shall, if a claim in respect thereof is to be made
against an indemnifying party under this Section 5, notify such indemnifying
party in writing of the commencement thereof; but the omission so to notify the
indemnifying party shall not relieve it from any liability which it may have to
any indemnified party otherwise than under this Section 5.  In case any such
action shall be brought against any indemnified party and it shall notify an
indemnifying party of the commencement thereof, such indemnifying party shall be
entitled to participate therein and, to the extent that it shall wish, jointly
with any other indemnifying party similarly notified, to assume the defense
thereof, with counsel satisfactory to such indemnified party (who shall not,
except with the consent of the indemnified party, be counsel to the indemnifying
party), and, after notice from the indemnifying party to such indemnified party
of its election so to assume the defense thereof, such indemnifying party shall
not be liable to such indemnified party under this Section 5 for any legal
expenses of other counsel or any other expenses, in each case

                                       12
<PAGE>

subsequently incurred by such indemnified party, in connection with the defense
thereof other than reasonable costs of investigation. No indemnifying party
shall, without the written consent of the indemnified party, effect the
settlement or compromise of, or consent to the entry of any judgment with
respect to, any pending or threatened action or claim in respect of which
indemnification or contribution may be sought hereunder (whether or not the
indemnified party is an actual or potential party to such action or claim)
unless such settlement, compromise or judgment (i) includes an unconditional
release of the indemnified party from all liability arising out of such action
or claim and (ii) does not include a statement as to, or an admission of, fault,
culpability or a failure to act, by or on behalf of any indemnified party.

     (d) Contribution.  If the indemnification provided for in this Section 5 is
unavailable to or insufficient to hold harmless an indemnified party under
subsection (a) or (b) above in respect of any losses, claims, damages or
liabilities (or actions in respect thereof) referred to therein, then each
indemnifying party shall contribute to the amount paid or payable by such
indemnified party as a result of such losses, claims, damages or liabilities (or
actions in respect thereof) in such proportion as is appropriate to reflect the
relative fault of the indemnifying party and the indemnified party in connection
with the statements or omissions which resulted in such losses, claims, damages
or liabilities (or actions in respect thereof), as well as any other relevant
equitable considerations.  The relative fault of such indemnifying party and
indemnified party shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact or omission or
alleged omission to state a material fact relates to information supplied by
such indemnifying party or by such indemnified party, and the parties' relative
intent, knowledge, access to information and opportunity to correct or prevent
such statement or omission.  The parties hereto agree that it would not be just
and equitable if contribution pursuant to this Section 5(d) were determined by
pro rata allocation (even if the Electing Holders or any underwriters, selling
agents or other securities professionals or all of them were treated as one
entity for such purpose) or by any other method of allocation which does not
take account of the equitable considerations referred to in this Section 5(d).
The amount paid or payable by an indemnified party as a result of the losses,
claims, damages or liabilities (or actions in respect thereof) referred to above
shall be deemed to include any legal or other fees or expenses reasonably
incurred by such indemnified party in connection with investigating or defending
any such action or claim.  No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation.  The obligations of the Electing Holders and any
underwriters, selling agents or other securities professionals in this Section
5(d) to contribute shall be several in proportion to the percentage of principal
amount of Registrable Securities registered or underwritten, as the case may be,
by them and not joint.

     (e) Notwithstanding any other provision of this Section 5, in no event will
any (i) Electing Holder be required to undertake liability to any person under
this Section 5 for any amounts in excess of the dollar amount of the proceeds to
be received by such Holder from the sale of such Holder's Registrable Securities
(after deducting any fees, discounts and commissions applicable thereto)
pursuant to any Shelf Registration Statement under which such Registrable
Securities are to be registered under the Securities Act and (ii) underwriter,

                                       13
<PAGE>

selling agent or other securities professional be required to undertake
liability to any person hereunder for any amounts in excess of the discount,
commission or other compensation payable to such underwriter, selling agent or
other securities professional with respect to the Registrable Securities
underwritten by it and distributed to the public.

     (f) The obligations of the Company under this Section 5 shall be in
addition to any liability which the Company may otherwise have to any
Indemnified Person and the obligations of any Indemnified Person under this
Section 5 shall be in addition to any liability which such Indemnified Person
may otherwise have to the Company.  The remedies provided in this Section 5 are
not exclusive and shall not limit any rights or remedies which may otherwise be
available to an indemnified party at law or in equity.

     6.  Underwritten Offering.  Any Holder of Registrable Securities who
desires to do so may sell Registrable Securities (in whole or in part) in an
underwritten offering; provided that  (i) the Electing Holders of at least 33-
1/3% in aggregate principal amount of the Registrable Securities then covered by
the Shelf Registration Statement shall request such an offering and (ii) at
least such aggregate principal amount of such Registrable Securities shall be
included in such offering; and provided further that the Company shall not be
obligated to cooperate with more than one underwritten offering during the
Effectiveness Period.  Upon receipt of such a request, the Company shall provide
all Holders of Registrable Securities written notice of the request, which
notice shall inform such Holders that they have the opportunity to participate
in the offering.  In any such underwritten offering, the investment banker or
bankers and manager or managers that will administer the offering will be
selected by, and the underwriting arrangements with respect thereto (including
the size of the offering) will be approved by, the holders of a majority of the
Registrable Securities to be included in such offering; provided, however, that
such investment bankers and managers and underwriting arrangements must be
reasonably satisfactory to the Company.  No Holder may participate in any
underwritten offering contemplated hereby unless (a) such Holder agrees to sell
such Holder's Registrable Securities to be included in the underwritten offering
in accordance with any approved underwriting arrangements, (b) such Holder
completes and executes all reasonable questionnaires, powers of attorney,
indemnities, underwriting agreements, lock-up letters and other documents
required under the terms of such approved underwriting arrangements, and (c) if
such Holder is not then an Electing Holder, such Holder returns a completed and
signed Notice and Questionnaire to the Company in accordance with Section
3(a)(2) hereof within a reasonable amount of time before such underwritten
offering.  The Holders participating in any underwritten offering shall be
responsible for any underwriting discounts and commissions and fees and, subject
to Section 4 hereof, expenses of their own counsel.  The Company shall pay all
expenses customarily borne by issuers, including but not limited to filing fees,
the fees and disbursements of its counsel and independent public accountants and
any printing expenses incurred in connection with such underwritten offering.
Notwithstanding the foregoing or the provisions of Section 3(n) hereof, upon
receipt of a request from the Managing Underwriter or a representative of
holders of a majority of the Registrable Securities to be included in an
underwritten offering to prepare and file an amendment or supplement to the
Shelf Registration Statement and Prospectus in connection with an underwritten
offering, the Company may delay the filing of any such amendment or supplement
for up to 90 days if the Board of Directors of

                                       14
<PAGE>

the Company shall have determined in good faith that the Company has a bona fide
business reason for such delay.

     7.   Liquidated Damages.

     (a)  Pursuant to Section 2(a) hereof, the Company may, upon written notice
to all the Holders, postpone having the Shelf Registration Statement declared
effective for a reasonable period not to exceed 90 days if the Company possesses
material non-public information, the disclosure of which would have a material
adverse effect on the Company and its subsidiaries taken as a whole.
Notwithstanding any such postponement, if (i) on or prior to the 90th day
following the Closing Date, a Shelf Registration Statement has not been filed
with the Commission or (ii) on or prior to the 180th day following the Closing
Date, such Shelf Registration Statement is not declared effective by the
Commission (each, a "Registration Default"), the Company shall be required to
pay liquidated damages ("Liquidated Damages"), from and including the day
following such Registration Default until such Shelf Registration Statement is
either so filed or so filed and subsequently declared effective, as applicable,
at a rate per annum equal to an additional one-quarter of one percent (0.25%) of
the principal amount of Registrable Securities, to and including the 90th day
following such Registration Default and one-half of one percent (0.5%) thereof
from and after the 91st day following such Registration Default.

     (b)  In the event that the Shelf Registration Statement ceases to be
effective (or the Holders of Registrable Securities are otherwise prevented or
restricted by the Company from effecting sales pursuant thereto) (an "Effective
Failure") for more than 45 days, whether or not consecutive, in any 90-day
period, or more than 90 days, whether or not consecutive, during any 12-month
period, then the Company shall pay Liquidated Damages at a rate per annum equal
to an additional one-half of one percent (0.5%) from the 46th day of the
applicable 90-day period or the 91st day of the applicable 12-month period, as
the case may be, that such Shelf Registration Statement ceases to be effective
(or the Holders of Registrable Securities are otherwise prevented or restricted
by the Company from effecting sales pursuant thereto) until the earlier of (i)
the time the Shelf Registration Statement again becomes effective or the Holders
of Registrable Securities are again able to make sales under the Shelf
Registration Statement or (2) the time the Effectiveness Period expires. For the
purpose of determining an Effective Failure, days on which the Company has been
obligated to pay Liquidated Damages in accordance with the foregoing in respect
of a prior Effective Failure within the applicable 90-day or 12-month period, as
the case may be, shall not be included.

     (c)  In the event the Company fails to file a post-effective amendment to
the Shelf Registration Statement, or the post-effective amendment is not
declared effective, within the periods required by Section 3, the Company shall
pay Liquidated Damages at a rate per annum equal to an additional one-half of
one percent (0.5%) from and including the date of such Registration Default
until such time as such Registration Default is cured.

     (d)  Any amounts to be paid as Liquidated Damages pursuant to paragraphs
(a), (b) or (c) of this Section 7 shall be paid semi-annually in arrears, with
the first semi-annual payment due on the first Interest Payment Date (as defined
in the Indenture), as applicable, following the

                                       15
<PAGE>

date of such Registration Default. Such Liquidated Damages will accrue (1) in
respect of the Securities at the rates set forth in paragraphs (a), (b) or (c)
of this Section 7, as applicable, on the principal amount of the Securities and
(2) in respect of the Common Stock issued upon conversion of the Securities, at
the rates set forth in paragraphs (a), (b) or (c) of this Section 7, as
applicable, applied to the Conversion Price (as defined in the Indenture) at
that time.

     (e) Except as provided in Section 8(b) hereof, the Liquidated Damages as
set forth in this Section 7 shall be the exclusive monetary remedy available to
the Holders of Registrable Securities for such Registration Default or Effective
Failure. In no event shall the Company be required to pay Liquidated Damages in
excess of the applicable maximum amount of one-half of one percent (0.5%) set
forth above, regardless of whether one or multiple Registration Defaults exist.

     8.  Miscellaneous.

     (a) Other Registration Rights.  The Company may grant registration rights
that would permit any Person that is a third party the right to piggy-back on
any Shelf Registration  Statement, provided that if the Managing Underwriter of
any underwritten offering conducted pursuant to Section 6 hereof notifies the
Company and the Electing Holders that the total amount of securities which the
Electing Holders and the holders of such piggy-back rights intend to include in
any Shelf Registration Statement is so large as to materially threaten the
success of such offering (including the price at which such securities can be
sold), then the amount, number or kind of securities to be offered for the
account of holders of such piggy-back rights will be reduced to the extent
necessary to reduce the total amount of securities to be included in such
offering to the amount, number and kind recommended by the Managing Underwriter
prior to any reduction in the amount of Registrable Securities to be included in
such Shelf Registration Statement.

     (b) Specific Performance.  The parties hereto acknowledge that there would
be no adequate remedy at law if the Company fails to perform any of its
obligations hereunder and that the Purchasers and the Holders from time to time
may be irreparably harmed by any such failure, and accordingly agree that the
Purchasers and such Holders, in addition to any other remedy to which they may
be entitled at law or in equity and without limiting the remedies available to
the Electing Holders under Section 7 hereof, shall be entitled to compel
specific performance of the obligations of the Company under this Registration
Rights Agreement in accordance with the terms and conditions of this
Registration Rights Agreement, in any court of the United States or any State
thereof having jurisdiction.

     (c) Amendments and Waivers.  This Agreement, including this Section 8(c),
may be amended, and waivers or consents to departures from the provisions hereof
may be given, only by a written instrument duly executed by the Company and the
holders of a majority in aggregate principal amount of Registrable Securities
then outstanding.  Each Holder of Registrable Securities outstanding at the time
of any such amendment, waiver or consent or thereafter shall be bound by any
amendment, waiver or consent effected pursuant to this

                                       16
<PAGE>

Section 8(c), whether or not any notice, writing or marking indicating such
amendment, waiver or consent appears on the Registrable Securities or is
delivered to such Holder.

     (d) Notices.  All notices and other communications provided for or
permitted hereunder shall be given as provided in the Indenture.

     (e) Parties in Interest.  The parties to this Agreement intend that all
Holders of Registrable Securities shall be entitled to receive the benefits of
this Agreement and that any Electing Holder shall be bound by the terms and
provisions of this Agreement by reason of such election with respect to the
Registrable Securities which are included in a Shelf Registration Statement.
All the terms and provisions of this Agreement shall be binding upon, shall
inure to the benefit of and shall be enforceable by the respective successors
and assigns of the parties hereto and any Holder from time to time of the
Registrable Securities to the aforesaid extent.  In the event that any
transferee of any Holder of Registrable Securities shall acquire Registrable
Securities, in any manner, whether by gift, bequest, purchase, operation of law
or otherwise, such transferee shall, without any further writing or action of
any kind, be entitled to receive the benefits of and, if an Electing Holder, be
conclusively deemed to have agreed to be bound by and to perform all of the
terms and provisions of this Agreement to the aforesaid extent.

     (f) Counterparts.  This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

     (g) Headings.  The headings in this agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

     (h) Governing Law.  This Agreement shall be governed by and construed in
accordance with the laws of the State of New York.

     (i) Severability.  In the event that any one or more of the provisions
contained herein, or the application thereof in any circumstances, is held
invalid, illegal or unenforceable in any respect for any reason, the validity,
legality and enforceability of any such provision in every other respect and of
the remaining provisions hereof shall not be in any way impaired or affected
thereby, it being intended that all of the rights and privileges of the parties
hereto shall be enforceable to the fullest extent permitted by law.

     (j) Survival.  The respective indemnities, agreements, representations,
warranties and other provisions set forth in this Agreement or made pursuant
hereto shall remain in full force and effect, regardless of any investigation
(or any statement as to the results thereof) made by or on behalf of any
Electing Holder, any director, officer or partner of such Holder, any agent or
underwriter, any director, officer or partner of such agent or underwriter, or
any controlling person of any of the foregoing, and shall survive the transfer
and registration of the Registrable Securities of such Holder.

                                       17
<PAGE>

     Please confirm that the foregoing correctly sets forth the agreement
between the Company and you.

                                    Very truly yours,

                                    Rational Software Corporation

                                    By: ____________________________
                                        Name:
                                        Title:

Accepted as of the date hereof:
Goldman, Sachs & Co.
Credit Suisse First Boston Corporation
Chase Securities Inc.

By:  _________________________________
         (Goldman, Sachs & Co.)

   On behalf of each of the Purchasers

                                       18
<PAGE>

                                                                       Exhibit A

                         Rational Software Corporation

                       Notice of Registration Statement
                                      and
                     Selling Securityholder Questionnaire
                                     (Date)

     Rational Software Corporation (the "Company") has filed or intends
shortly to file with the United States Securities and Exchange Commission (the
"Commission") a preliminary registration statement on Form S-3 (the "Shelf
Registration Statement") for the registration and resale under the United
States Securities Act of 1933, as amended (the "Securities Act"), of the
Company's 5% Convertible Subordinated Notes due February 1, 2007 (CUSIP No.
75409PAA1) (the "Notes"), and Common Stock issuable upon conversion thereof,
in accordance with the terms of the Registration Rights Agreement, dated as of
February 2, 2000 (the "Registration Rights Agreement") between the Company and
the purchasers named therein (the "Purchasers"). A copy of the Registration
Rights Agreement is attached hereto. All capitalized terms not otherwise defined
herein shall have the meanings ascribed thereto in the Registration Rights
Agreement.

     In order to have Registrable Securities included in the Shelf Registration
Statement (or a supplement or amendment thereto), this Notice of Registration
Statement and Selling Securityholder Questionnaire ("Notice and
Questionnaire") must be completed, executed and delivered to the Company at the
address set forth herein for receipt ON OR BEFORE [insert date that is 30 days
from the Notice date] (the "Questionnaire Deadline"). Unless the Company
otherwise consents, beneficial owners of the Registrable Securities who do not
complete, execute and return this Notice and Questionnaire by such date (i) will
not be named as selling securityholders in the Shelf Registration Statement (or
a supplement or amendment thereto) and related Prospectus and (ii) may not sell
their Registrable Securities pursuant thereto. Beneficial owners of Registrable
Securities not having returned a Notice and Questionnaire by the Questionnaire
Deadline may, however, receive another Notice and Questionnaire from the Company
upon request. Following its receipt of a completed and signed Notice and
Questionnaire in return, the Company will promptly include the Registrable
Securities covered thereby in the Shelf Registration Statement.

     Certain legal consequences arise from being named as a selling
securityholder in the Shelf Registration Statement and related Prospectus.
Accordingly, holders and beneficial owners of Registrable Securities are advised
to consult their own securities law counsel regarding the consequences of being
named or not being named as a selling securityholder in the Shelf Registration
Statement and related Prospectus.

     The term "Registrable Securities" is defined in the Registration Rights
Agreement to mean all or any portion of the Notes issued under the Trust
Indenture and the Common Stock issuable upon conversion of such Notes, provided,
however, that a security ceases to be a Registrable Security when it is no
longer a Restricted Security.

     The term "Restricted Security" is defined in the Registration Rights
Agreement to mean any

                                       19
<PAGE>

Note or Common Stock issuable upon conversion thereof except any such Note or
Common Stock which (i) has been registered pursuant to an effective registration
statement under the Securities Act and sold in a manner contemplated by the
Shelf Registration Statement, (ii) has been transferred in compliance with Rule
144 under the Securities Act (or any successor provision thereto) or is
transferable pursuant to paragraph (k) of such Rule 144 (or any successor
provision thereto) or (iii) has otherwise been transferred and a new Note or
share of Common Stock not subject to transfer restrictions under the Securities
Act has been delivered by or on behalf of the Company in accordance with the
Indenture.

                                   ELECTION

     The undersigned holder (the "Selling Securityholder") of Registrable
Securities hereby elects to include in the Shelf Registration Statement the
Registrable Securities beneficially owned by it and listed below in item (3)
(unless otherwise specified under Item 3). The undersigned, by signing and
returning this Notice and Questionnaire, agrees to be bound with respect to such
Registrable Securities by the terms and conditions of this Notice and
Questionnaire and the Registration Rights Agreement, including, without
limitation, Section 5 of the Registration Rights Agreement, as if the
undersigned Selling Securityholder were an original party thereto.

     Upon any sale of Registrable Securities pursuant to the Shelf Registration
Statement, the Selling Securityholder will be required to deliver to the Company
and the Trustee the Notice of Transfer (completed and signed) set forth in
Exhibit 1 attached to this Notice and Questionnaire and hereby undertakes to do
so.

     The Selling Securityholder hereby provides the following information to the
Company and represents and warrants that such information is accurate and
complete:

                                 QUESTIONNAIRE

(1)  (a) Full Legal Name of Selling Securityholder:

     (b) Full Legal Name of Registered Holder (if not the same as in (a) above)
         of Registrable Securities Listed in (3) Below:

     (c) Full Legal Name of DTC Participant (if applicable and if not the same
         as (b) above) Through Which Registrable Securities Listed in (3) Below
         are Held:

(2)  Address for Notices to Selling Securityholder:

     Telephone:

                                       20
<PAGE>

     Fax:

     Contact:

(3)  Beneficial Ownership of Registrable Securities:

     Except as set forth below, the undersigned Selling Securityholder does not
     beneficially own any Notes or Common Stock previously issued upon
     conversion, repurchase or redemption of any Note.

     Principal amount of Notes beneficially owned:

     Number of shares of Common Stock beneficially owned and issued to date upon
     conversion, repurchase or redemption of Notes (if any):

     Principal amount of Notes which the undersigned wishes to be included in
     the Shelf Registration statement:

     Number of shares of Common Stock (if any) issued upon conversion,
     repurchase or redemption of Registrable Securities which are to be included
     in the Shelf Registration Statement:

(4)  Other shares of Common Stock or other Notes of the Company owned by the
     Selling Securityholder:

     Except as set forth below, and under item (3) above, the undersigned
     Selling Securityholder is not the beneficial or registered owner of any
     shares of Common Stock or any other securities of the Company.

State any exceptions here:

(5)  Relationships with the Company:

     Except as set forth below, neither the Selling Securityholder nor any of
     its affiliates, officers, directors or principal equity holders (5% or
     more) has held any position or office or has had any other material
     relationship with the Company (or its predecessors or affiliates) during
     the past three years.

State any exceptions here:

(6)  Plan of Distribution:

     Except as set forth below, the undersigned Selling Securityholder intends
     to distribute the Registrable Securities listed above in Item (3) only as
     follows (if at all): Such Registrable Securities may be sold from time to
     time directly by the undersigned Selling Securityholder

                                       21
<PAGE>

     or, alternatively, through underwriters, broker-dealers or agents. Such
     Registrable Securities may be sold in one or more transactions at fixed
     prices, at prevailing market prices at the time of sale, at varying prices
     determined at the time of sale, or at negotiated prices. Such sales may be
     effected in transactions (which may involve crosses or block transactions)
     (i) on any national securities exchanges or U.S. inter-dealer quotation
     system of a registered national securities association on which the
     Registrable Securities may be listed or quoted at the time of sale, (ii) in
     the over-the-counter market, (iii) in transactions otherwise than on such
     exchanges or services or in the over-the-counter market, or (iv) through
     the writing of options. In connection with sales of the Registrable
     Securities or otherwise, the Selling Securityholder may enter into hedging
     transactions with broker-dealers, which may in turn engage in short sales
     of the Registrable Securities in the course of hedging the positions they
     assume. The Selling Securityholder may also sell Registrable Securities
     short and deliver Registrable Securities to close out such short positions,
     or loan or pledge Registrable Securities to broker-dealers that in turn may
     sell such securities.

State any exceptions here:

     Note: In no event may such method(s) of distribution take the form of an
underwritten offering of the Registrable Securities without the prior agreement
of the Company.

     By signing below, the Selling Securityholder acknowledges that it
understands its obligation to comply, and agrees that it will comply, with the
prospectus delivery and other provisions of the Securities Act and Exchange Act
and the respective rules and regulations thereunder, particularly Regulation M.

     In the event that the Selling Securityholder transfers all or any portion
of the Registrable Securities listed in Item (3) above after the date on which
such information is provided to the Company, the Selling Securityholder agrees
to notify the transferee(s) at the time of the transfer of its rights and
obligations under this Notice and Questionnaire and the Registration Rights
Agreement.

     By signing below, the Selling Securityholder consents to the disclosure of
the information contained herein in its answers to Items (1) through (6) above
and the inclusion of such information in the Shelf Registration Statement and
related Prospectus. The Selling Securityholder understands that such information
will be relied upon by the Company in connection with the preparation of the
Shelf Registration Statement and related Prospectus.

     In accordance with the Selling Securityholder's obligation under the
Registration Rights Agreement to provide such information as may be required by
law for inclusion in the Shelf Registration Statement, the Selling
Securityholder agrees to promptly notify the Company of any inaccuracies or
changes in the information provided herein which may occur subsequent to the
date hereof at any time while the Shelf Registration Statement remains in
effect. All notices hereunder and pursuant to the Registration Rights Agreement
shall be made in writing by hand delivery, first-class mail, or air courier
guaranteeing overnight delivery as follows:

                                       22
<PAGE>

     To the Company:

         Rational Software Corporation
         18880 Homestead Road,
         Cupertino, CA 95014-0721
         Attention: Senior Director--Investor Relations

     Once this Notice and Questionnaire is executed by the Selling
Securityholder and received by the Company, the terms of this Notice and
Questionnaire, and the representations and warranties contained herein, shall be
binding on, shall inure to the benefit of and shall be enforceable by the
respective successors, heirs, personal representatives, and assigns of the
Company and the Selling Securityholder with respect to the Registrable
Securities beneficially owned by such Selling Securityholder and listed in Item
(3) above. This Agreement shall be governed in all respects by the laws of the
State of New York.

     IN WITNESS WHEREOF, the undersigned, by authority duly given, has caused
this Notice and Questionnaire to be executed and delivered either in person or
by its duly authorized agent.

Dated:

     Selling Securityholder
     (Print/type full legal name of beneficial owner
     of Registrable Securities)

     By:
     Name:
     Title:

     PLEASE RETURN THE COMPLETED AND EXECUTED NOTICE AND QUESTIONNAIRE FOR
RECEIPT ON OR BEFORE (DEADLINE FOR RESPONSE) TO THE COMPANY AT:

     Rational Software Corporation
     18880 Homestead Road,
     Cupertino, CA 95014-0721
     Attention: Senior Director--Investor Relations

                                       23
<PAGE>

                                                                       Exhibit B

             NOTICE TO TRANSFER PURSUANT TO REGISTRATION STATEMENT

Rational Software Corporation

18880 Homestead Road,

Cupertino, CA 95014-0721

Attention: Senior Director--Investor Relations

Re: Rational Software Corporation
     5% Convertible Subordinated Notes
    due February 1, 2007 (the "Notes")

Dear Sirs:

     Please be advised that          has transferred $       aggregate principal
amount of the above-referenced Notes or shares of the Company's Common Stock,
issued on conversion, repurchase or redemption of Notes, pursuant to the
Registration Statement on Form S-3 (File No. -   ) filed by the Company.

     We hereby certify that the prospectus delivery requirements, if any, of the
Securities Act of 1933, as amended, have been satisfied with respect to the
transfer described above and that the above-named beneficial owner of the Notes
or Common Stock is named as a selling securityholder in the Prospectus dated
______, 2000 or in amendments or supplements thereto, and that the aggregate
principal amount of the Notes or number of shares of Common Stock transferred
are [a portion of] the Notes or Common Stock listed in such Prospectus as
amended or supplemented opposite such owner's name.

                                        Very truly yours,

                                                          (Name)

                                        By:

                                                  (Authorized Signature)

 _ Dated:

                                       24<PAGE>

                                                                    EXHIBIT 4.07

                     AGREEMENT AND PLAN OF REORGANIZATION

     This Agreement and Plan of Reorganization (this "Agreement") is made and
entered into as of February 2, 2000 (the "Agreement Date") by and among At Home
Corporation, a Delaware corporation ("Excite@Home"), Grisham Acquisition
Corporation, a Delaware corporation that is a wholly-owned subsidiary of
Excite@Home ("Sub"), Kendara, Inc., a Delaware corporation ("Kendara"), and
Timothy M. Haley, the representative of the stockholders of Kendara (the
"Representative").

                                   Recitals

     A.   The parties intend that, Kendara will be merged with and into Sub in a
forward triangular merger, with Sub to be the surviving corporation (the
"Merger"), all pursuant to the terms and conditions of this Agreement and
applicable law. The parties also intend for the Merger to be treated as a
"reorganization" under Section 368(a) of the Internal Revenue Code of 1986, as
amended (the "Code"), and to be treated as a "purchase" transaction for
accounting purposes.

     B.   The Boards of Directors of Excite@Home, Sub and Kendara have
determined that the Merger is in the best interests of their respective
companies and stockholders, have approved the Merger and, accordingly, have
agreed to effect the Merger provided for herein upon the terms and conditions of
this Agreement.

     C.   Concurrently with the execution and delivery of this Agreement, the
founding stockholders of Kendara listed on the List of Founders (collectively,
the "Kendara Founders" and each individually, a "Kendara Founder") attached
hereto as Exhibit A will execute and deliver to Excite@Home an Investment
Representation Letter in the form and substance of Exhibit B attached hereto,
                                                   ---------
under which each such Kendara Founder will provide certain representations and
warranties to Excite@Home, and will agree to irrevocably vote all shares of
Kendara capital stock owned by such Kendara Founder in favor of the Merger and
the transactions contemplated by the Merger (the "Investment Representation
Letter").

     D.   Immediately prior to the Effective Time (as defined in Section 1.8) of
the Merger, all shares of Kendara Preferred Stock (as defined in Section 1.15)
outstanding as of immediately prior to the Effective Time will convert into
shares of Kendara Common Stock (as defined in Section 1.11) at the then
applicable conversion ratio defined in the Certificate of Incorporation of
Kendara, as amended to date.

     E.   Upon the Effective Time of the Merger, and subject to the terms and
conditions hereof, (i) the shares of capital stock of Kendara that are
outstanding immediately prior to the effectiveness of the Merger will be
converted into shares of the Series A Common Stock of Excite@Home, Series B Non-
Voting Convertible Preferred Stock of Excite@Home and Series C Non-Voting
Convertible Preferred Stock of Excite@Home, (ii) options, warrants and other
rights to purchase Kendara capital stock that are outstanding immediately prior
to the effectiveness of the Merger will be converted into options, warrants and
other rights to purchase Series A
<PAGE>

Common Stock of Excite@Home, and (iii) Kendara will be merged with and into Sub,
in each case, as provided in this Agreement.

     Now, therefore, in consideration of the foregoing and the mutual promises,
covenants and conditions contained herein, the parties hereby agree as follows:

                                   ARTICLE 1
                              Certain Definitions

     As used in this Agreement, the following terms will have the meanings set
forth below:

     1.1  "Common Stock Conversion Number" means the quotient (calculated to the
fourth decimal place) obtained by dividing (a) the Kendara Common Stock Amount
Per Share by (b) the Excite@Home Average Price Per Share.

     1.2  "Excite@Home Ancillary Agreements" means, collectively, each
certificate to be delivered by Excite@Home or an officer or officers of
Excite@Home at the Closing pursuant to Article 8 of this Agreement and each
agreement (other than this Agreement) which Excite@Home is to enter into as a
party thereto pursuant to this Agreement.

     1.3  "Excite@Home Average Price Per Share" means $38.65.

     1.4  "Excite@Home Common Stock" means Excite@Home Series A Common Stock,
par value $0.01 per share.

     1.5  "Excite@Home Series B Preferred Stock" means Excite@Home Series B Non-
Voting Convertible Preferred Stock, par value $0.01 per share, having the
rights, preferences, limitations and terms set forth in the Certificate of
Designation substantially in the form attached hereto as Exhibit C (the "Series
                                                         ---------
B Certificate of Designation").

     1.6  "Excite@Home Series C Preferred Stock" means Excite@Home Series C Non-
Voting Convertible Preferred Stock, par value $0.01 per share, having the
rights, preferences, limitations and terms set forth in the Certificate of
Designation substantially in the form attached hereto as Exhibit D (the "Series
                                                         ---------
C Certificate of Designation" and, together with the Series B Certificate of
Designation, the "Certificates of Designation").

     1.7  "Excite@Home Preferred Stock" means Excite@Home Series B Preferred
Stock and Excite@Home Series C Preferred Stock.

     1.8  The "Effective Time" means the date and time on which the Merger first
becomes legally effective under the laws of the State of Delaware as a result of
the filing with the Delaware Secretary of State of a Certificate of Merger in
substantially the form attached hereto as Exhibit E (the "Certificate of
                                          ---------
Merger") and any required related certificates pursuant to, and in conformity
with, the requirements of Section 251 of the Delaware General Corporation Law
("Delaware Law").

                                      -2-
<PAGE>

     1.9   "Encumbrance" means, with respect to any asset, any mortgage, deed of
trust, lien, pledge, charge, security interest, title retention devices,
collateral assignments, claims, charges, restrictions or other encumbrances of
any kind in respect of such asset.

     1.10  "Kendara Ancillary Agreements" means, collectively, the Certificate
of Merger, each certificate to be delivered by Kendara or an officer or officers
of Kendara at the Closing pursuant to Article 9 of this Agreement, and each
other agreement (other than this Agreement) which Kendara is to enter into as a
party thereto pursuant to this Agreement.

     1.11  "Kendara Common Stock" means common stock, $0.0001 par value per
share, of Kendara.

     1.12  "Kendara Common Stock Amount Per Share" means the quotient
(calculated to the fourth decimal place) obtained by dividing (a) the Total
Merger Consideration by (b) the Kendara Fully Diluted Share Number.

     1.13  "Kendara Fully Diluted Share Number" means the aggregate number of
shares of Kendara Common Stock, Kendara Preferred Stock, Kendara Options and
Kendara Warrants (each, on a fully exercised and converted to Common Stock
basis) that are issued and outstanding immediately prior to the Effective Time;
provided that the shares of Kendara Common Stock issuable upon the exercise of
the Permitted Non-Dilutive Options shall not be included in this aggregate
number of shares.

     1.14  "Kendara Options" shall have the meaning given in Section 2.3 of this
Agreement.

     1.15  "Kendara Preferred Stock" means Series A Preferred Stock, $0.0001 par
value per share, of Kendara.

     1.16  "Kendara Stockholders" means the record holders of issued and
outstanding Kendara Common Stock and Kendara Preferred Stock immediately prior
to the Effective Time of the Merger.

     1.17  "Kendara Warrants" shall have the meaning given in Section 2.4 of
this Agreement.

     1.18  "knowledge," when used with reference to (a) an individual, means the
actual knowledge after reasonable inquiry of such individual, or (b) a person
that is not an individual, means the collective actual knowledge of the officers
and directors of such party, after reasonable inquiry of the employees
(including, for Kendara, Brian Wilson) and agents of such party.

     1.19  "Legal Requirements" means any federal, state, local, municipal,
foreign or other law, statute, constitution, resolution, ordinance, code, edict,
decree, rule, regulation, ruling or requirement issued, enacted, adopted,
promulgated, implemented or otherwise put into effect by or under the authority
of any Governmental Authority.

                                      -3-
<PAGE>

     1.20  "Material Adverse Change" or "Material Adverse Effect," when used
with reference to any entity or group of related entities, means any event,
change, violation, inaccuracy, circumstance or effect (regardless of whether or
not such events or changes are inconsistent with the representations or
warranties made by such party in this Agreement) that is or is reasonably likely
to be, individually or in the aggregate, materially adverse to the condition
(financial or otherwise), capitalization, properties, employees, assets
(including intangible assets), business, operations or results of operations of
such entity and its subsidiaries, taken as a whole; provided, that in no event
shall a change in the price of the publicly traded stock of Excite@Home
constitute, in and of itself, a Material Adverse Change or Material Adverse
Effect in Excite@Home; provided further, that in no event shall (a) conditions
affecting the industry generally in which Kendara operates or the U.S. economy
as a whole; (b) continuing losses of Kendara, provided, that such losses do not
materially increase between the Agreement Date and the Closing; (c) any effect
on Kendara directly resulting from actions not taken by Kendara pursuant to
Section 5.3 due to prior written consent not being provided by Excite@Home
following a written request from Kendara to Excite@Home to undertake such
actions; or (d) any effect on Kendara resulting from the announcement of the
Merger, constitute, in and of itself, a Material Adverse Change or Material
Adverse Effect in Kendara.

     1.21  "Permitted Non-Dilutive Options" means the sum of (a) options granted
to employees hired by Kendara after December 20, 1999 to acquire an aggregate of
210,509 shares of Kendara Common Stock granted by Kendara before the Agreement
Date, and (b) options to employees of Kendara hired between the Agreement Date
and the Closing to acquire an aggregate of 289,491 shares of Kendara Common
Stock granted by Kendara after the Agreement Date; provided that the vesting of
such options does not accelerate in connection with the Merger or any of the
other transactions contemplated hereby, such options vest over a four-year
period, with not more than twenty-five percent in the first year and 2 1/12%
each full calendar month thereafter, the exercise price of such option is not
less than the fair market value of Kendara Common Stock on the date of grant,
and the number of shares subject to such option is consistent with the past
practice of Kendara; provided further that in the case of clause (b) such
options are granted only with the prior written consent of Excite@Home.

     1.22  "person" means any individual, corporation (including any not-for-
profit corporation), partnership, limited liability partnership, joint venture,
estate, trust, firm, company (including any limited liability company or joint
stock company), association, organization, entity or Governmental Authority.

     1.23  "Sub Ancillary Agreements" means, collectively, each certificate to
be delivered by Sub or an officer or officers of Sub at the Closing pursuant to
Article 8 of this Agreement and each agreement (other than this Agreement) which
Sub is to enter into as a party thereto pursuant to this Agreement.

     1.24  "Termination Date" means February 29, 2000.

     1.25   "Total Merger Consideration" means $120,000,000.

                                      -4-
<PAGE>

     Other capitalized terms defined elsewhere in this Agreement and not defined
in this Article 1 will have the meanings assigned to such terms in this
Agreement.

                                   ARTICLE 2
                            Plan of Reorganization

     2.1   Conversion of Shares.
           --------------------

        2.1.1  Conversion of Sub Stock.  At the Effective Time, each share of
               -----------------------
Sub common stock that is issued and outstanding immediately prior to the
Effective Time will continue after the Effective Time to be an identical
outstanding share of the Surviving Corporation (as defined below).

       2.1.2   Conversion of Kendara Common Stock.  Subject to the terms and
               ----------------------------------
conditions of this Agreement, at the Effective Time, each share of Kendara
Common Stock held by a Kendara Stockholder that is issued and outstanding
immediately prior to the Effective Time will, by virtue of the Merger and
without the need for any further action on the part of the holder thereof
(except as expressly provided herein), be converted into and represent the right
to receive the number of shares of Excite@Home Common Stock that is equal to the
Common Stock Conversion Number; provided, however, that (i) ten percent of the
shares of Kendara Common Stock held by the Kendara Stockholders (other than the
Kendara Founders) will be converted into and represent the right to receive, in
proportion to each such stockholder's interest, the number of shares of
Excite@Home Series B Preferred Stock that is equal to the product obtained by
multiplying (a) each share included in such ten percent of Kendara Common Stock
by (b) the quotient obtained by dividing the Common Stock Conversion Number by
1,000; (ii) twenty percent of Kendara Common Stock (other than Unvested Kendara
Shares, as defined in Section 2.1.5) held by the Kendara Founders will be
converted into and represent the right to receive, in proportion to each such
founder's interest, the number of shares of Excite@Home Series B Preferred Stock
that is equal to the product obtained by multiplying (a) each share included in
such twenty percent of Kendara Common Stock by (b) the quotient obtained by
dividing the Common Stock Conversion Number by 1,000, and (iii) each Unvested
Kendara Share held by a Kendara Founder will be converted into and represent the
right to receive the number of Excite@Home Series C Preferred Stock that is
equal to the quotient obtained by dividing the Common Stock Conversion Number by
1,000. The preceding provisions of this Section 2.1.2 are subject to the
provisions of Section 2.1.3 (regarding rights of holders of Dissenting Shares),
Section 2.1.4 (regarding the elimination of fractional shares of Excite@Home
Common Stock) and Section 2.5 (regarding the withholding of Escrow Shares).

       2.1.3   Dissenting Shares.  Holders of shares of Kendara Common Stock who
               -----------------
have complied with all requirements for perfecting stockholders' rights of
appraisal, as set forth in Section 262 of Delaware Law, shall be entitled to
their rights under the Delaware Law with respect to such shares ("Dissenting
Shares").

       2.1.4   Fractional Shares.  No fractional shares of Excite@Home Common
               -----------------
Stock will be issued in connection with the Merger. In lieu thereof, each holder
of Kendara Common Stock who would otherwise be entitled to receive a fraction of
a share of Excite@Home Common Stock pursuant to Section 2.1.2, computed after
aggregating all shares of Excite@Home

                                      -5-
<PAGE>

Common Stock to be received by such holder pursuant to Section 2.1.2, will
instead receive from Excite@Home, upon surrender of such holder's Kendara
Certificates pursuant to Article 7 hereof, an amount of cash (rounded to the
nearest cent) equal to the product obtained by multiplying (a) the Excite@Home
Average Price Per Share by (b) the fraction of a share of Excite@Home Common
Stock that such holder would otherwise have been entitled to receive.
Excite@Home Preferred Stock will be issued in fractional shares to the extent
conversion of Kendara Common Stock into Excite@Home Preferred Stock pursuant to
Section 2.1.2 results in the need to issue fractional shares of Excite@Home
Preferred Stock.

       2.1.5   Continuation of Vesting and Repurchase Rights.  If any shares of
               ---------------------------------------------
Kendara Common Stock (other than shares of Kendara Common Stock held by the
individuals listed on Schedule 2.1.5 ("Advisor Unvested Kendara Shares"))
outstanding immediately prior to the Effective Time are at the Effective Time
unvested or are subject to a repurchase option (other than a right of first
refusal) or any other condition providing that such shares may be forfeited to
Kendara upon any termination of the stockholder's employment, directorship or
other relationship with Kendara (and/or any affiliate of Kendara) under the
terms of any restricted stock purchase agreement, stock option agreement
(including any stock option agreement under the Kendara Plan (as defined below))
or other agreement with Kendara ("Unvested Kendara Shares"), then such
repurchase option or other condition shall be assigned to Excite@Home and the
shares of Excite@Home Common Stock or Excite@Home Series C Preferred Stock, as
the case may be, issued upon the conversion of such Unvested Kendara Shares in
the Merger will continue to be unvested and will continue to be subject to the
same repurchase options or conditions, as applicable, immediately following the
Effective Time as they were subject to immediately prior to the Effective Time;
and such repurchase options relating to Advisor Unvested Kendara Shares shall
not be assigned to Excite@Home and the shares of Excite@Home Common Stock or
Excite@Home Series C Preferred Stock, as the case may be, issued upon conversion
of such Advisor Unvested Kendara Shares will be vested but will not be subject
to any repurchase options or conditions, as applicable, immediately following
the Effective Time.   If shares of Kendara Common Stock held by a Kendara
Stockholder (other than a Kendara Founder) are Unvested Kendara Shares, ninety
percent of such Unvested Kendara Shares shall be converted into Excite@Home
Common Stock in accordance with Section 2.1.2 and the remaining ten percent
shall be converted into Excite@Home Series B Preferred Stock in accordance with
Section 2.1.2, which Excite@Home Series B Preferred Stock shall be Escrow Shares
(as defined in Section 2.5); so that as such Unvested Kendara Shares would have
vested if not converted, the Excite@Home Common Stock and the Excite@Home Series
B Preferred Stock will vest, provided that such Excite@Home Series B Preferred
Stock shall remain Escrow Shares.  The certificates representing such shares of
Excite@Home Common Stock and Excite@Home Preferred Stock shall accordingly be
marked with appropriate legends noting such repurchase options or other
conditions.  Kendara shall take all actions that may be necessary to ensure
that, from and after the Effective Time, Excite@Home is entitled to exercise any
such repurchase option or other right set forth in any such restricted stock
purchase agreement or other agreement (other than a right of first refusal).

                                      -6-
<PAGE>

     2.2  Adjustments for Capital Changes.  Notwithstanding the provisions of
          -------------------------------
Section 2.1, if Excite@Home recapitalizes, either through a subdivision (or
stock split) of any of its outstanding shares of Excite@Home Common Stock into a
greater number of such shares, or a combination (or reverse stock split) of any
of its outstanding shares of Excite@Home Common Stock into a lesser number of
such shares, or reorganizes, reclassifies or otherwise changes its outstanding
shares of Excite@Home Common Stock into the same or a different number of shares
of other classes or series of Excite@Home stock (other than through a
subdivision or combination of shares provided for in the preceding clause), or
declares a dividend or other distribution on its outstanding shares payable in
shares of Excite@Home Common Stock, in shares or securities convertible into
shares of Excite@Home Common Stock and/or other Excite@Home equity securities
(each, a "Capital Change"), at any time after the Agreement Date and prior to
the Effective Time, then the Excite@Home Average Price Per Share and the Common
Stock Conversion Number will be proportionally and equitably adjusted.

     2.3  Kendara Options.  At the Effective Time, all outstanding options
          ---------------
(collectively, "Kendara Options") to purchase Kendara Common Stock, including
all Kendara Options granted under Kendara's 1999 Stock Plan (the "Kendara Plan")
and the Permitted Non-Dilutive Options, will be assumed by Excite@Home and
Kendara's repurchase right with respect to any unvested shares of Kendara Common
Stock acquired upon the exercise of Kendara Options shall be assigned to
Excite@Home.  Each Kendara Option so assumed by Excite@Home shall be entitled,
in accordance with the terms of such option, to purchase after the Effective
Time that number of shares of Excite@Home Common Stock, determined by
multiplying (a) the number of shares of Kendara Common Stock subject to such
Kendara Option at the Effective Time by (b) the Common Stock Conversion Number,
and the exercise price per share for each such assumed Option will equal the
exercise price of the Kendara Option immediately prior to the Effective Time
divided by the Common Stock Conversion Number.  If the foregoing calculation
results in an assumed option being exercisable for a fraction of a share, then
the number of shares of Excite@Home Common Stock subject to such option will be
rounded down to the nearest whole number and the exercise price of such option
will be rounded up to the nearest cent.  The term, exercisability, vesting
schedule, status as an "incentive stock option" under Section 422A of the Code,
if applicable, and all other terms of the Kendara Options will otherwise be
unchanged.  Continuous employment with Kendara will be credited to an optionee
for purposes of determining the number of shares that are vested after the
Effective Time.  Excite@Home will cause the Excite@Home Common Stock issued upon
exercise of the assumed Kendara Options to be registered on Form S-8 of the
Securities and Exchange Commission ("SEC") as soon as is practicable after the
Effective Time (but no later than fifteen whole business days after the
Effective Time), and will exercise reasonable commercial efforts to maintain the
effectiveness of such registration statement for so long as such assumed Kendara
Options remain outstanding and will reserve a sufficient number of shares of
Excite@Home Common Stock for issuance upon exercise thereof.  Excite@Home will
administer the Kendara Plan assumed pursuant to this Section 2.3 in a manner
that complies with Rule 16b-3 promulgated by the SEC under the Securities
Exchange Act of 1934, as amended ("Exchange Act").

     2.4  Kendara Warrants.  At the Effective Time, all then outstanding
          ----------------
warrants, exchangeable or convertible securities or rights to purchase or
otherwise acquire, that are

                                      -7-
<PAGE>

exercisable or convertible, ultimately or potentially, into any Kendara Common
Stock (each, a "Kendara Warrant") shall by virtue of the Merger, and without any
further action on the part of any holder thereof, be assumed by Excite@Home and
converted into a warrant or like security (each, a "Excite@Home Warrant") to
purchase that number of shares of Excite@Home Common Stock determined by
multiplying (a) the number of shares of Kendara Common Stock that are subject to
such Kendara Warrant immediately prior to the Effective Time by (b) the Common
Stock Conversion Number, at an exercise price per share of such Excite@Home
Common Stock equal to the exercise price per share of Kendara Common Stock that
was in effect for such Kendara Warrant immediately prior to the Effective Time
divided by the Common Stock Conversion Number. If the foregoing calculation
would result in an assumed Kendara Warrant being exercisable (a) for a fraction
of a share of Excite@Home Common Stock, then the number of shares of Excite@Home
Common Stock subject to such Excite@Home Warrant will be rounded down to the
nearest whole number of shares of Excite@Home Common Stock, or (b) for a
fraction of a cent, then the exercise price of such Kendara Warrant will be
rounded up to the nearest cent. The exercisability period and other terms and
conditions of the Kendara Warrants will remain unchanged.

     2.5  Escrow of Shares.  At the Effective Time, Excite@Home will withhold
          ----------------
from the shares of Excite@Home Common Stock, Excite@Home Series B Preferred
Stock and Excite@Home Series C Preferred Stock to be issued to Kendara
Stockholders in the Merger upon conversion of their Kendara Common Stock
pursuant to Section 2.1.2 above, all of the shares of Excite@Home Series B
Preferred Stock and the Escrow Excite@Home Series C Preferred Stock (as defined
below) issued to such Kendara Stockholders pursuant to Section 2.1.2 (such
withheld shares of Excite@Home Preferred Stock and any shares of Excite@Home
capital stock or other securities into which such shares of Excite@Home
Preferred Stock are converted or exchanged and any dividends or distributions
received in respect of such shares of Excite@Home Preferred Stock or other stock
or securities to which such shares of Excite@Home Preferred Stock are converted
or exchanged, being hereinafter referred to as the "Escrow Shares"), and will
hold the certificates representing such Escrow Shares as security for the
Kendara Stockholders' indemnification obligations for Damages (as defined in
Section 11.2) under Article 11 hereof.  The Escrow Shares will be represented by
a certificate or certificates issued in the names of each Kendara Stockholder in
proportion to each such stockholder's interest therein and will be held by
Excite@Home, subject to the terms and conditions of Article 11 hereof, until the
Release Date (as defined in Section 11.1 hereof).  "Escrow Excite@Home Series C
Preferred Stock" shall mean twenty percent of the Excite@Home Series C Preferred
Stock issued to Kendara Founders that vest or as to which Kendara's repurchase
option lapses on or prior to the first anniversary of the Effective Time
pursuant to the terms of an Amended Restricted Stock Purchase Agreement between
each Kendara Founder and Kendara in the form and substance attached hereto as
Exhibit F.
---------

     2.6  Effects of the Merger.  At and upon the Effective Time of the Merger:
          ---------------------

          (a)  the separate existence of Kendara will cease and Kendara will be
merged with and into Sub, and Sub will be the surviving corporation of the
Merger (sometimes

                                      -8-
<PAGE>

hereinafter referred to as the "Surviving Corporation") pursuant to the terms of
this Agreement and the Certificate of Merger;

          (b)  the Certificate of Incorporation of Sub will continue unchanged
and be the Certificate of Incorporation of the Surviving Corporation immediately
after the Effective Time;

          (c)  the Bylaws of Sub will continue unchanged and be the Bylaws of
the Surviving Corporation immediately after the Effective Time;

          (d)  each share of Kendara Common Stock that is outstanding
immediately prior to the Effective Time will be converted as provided in this
Article 2;

          (e)  each Kendara Option and Kendara Warrant that is outstanding
immediately prior to the Effective Time will be assumed and converted as
provided in this Article 2;

          (f)  each share of Sub common stock that is outstanding immediately
prior to the Effective Time will continue to be an identical share of the
Surviving Corporation as provided in Section 2.1.1;

          (g)  the officers of the Surviving Corporation immediately after the
Effective Time will be those individuals who were the officers of Sub
immediately prior to the Effective Time, and each such individual shall,
immediately after the Effective Time, hold the same office or offices of the
Surviving Corporation as the office or offices that such individual held with
Sub immediately prior to the Effective Time;

          (h)  the members of the Board of Directors of the Surviving
Corporation immediately after the Effective Time will be the members of the
Board of Directors of Sub immediately prior to the Effective Time; and

          (i)  the Merger will, from and after the Effective Time, have all of
the effects provided by applicable law.

     2.7  Securities Law Issues; Registration Rights.  Excite@Home shall issue
          ------------------------------------------
the shares of Excite@Home Common Stock and Excite@Home Preferred Stock to be
issued to the Kendara Stockholders in the Merger pursuant to Section 2.1.2 and
to be issuable to holders of Kendara Warrants pursuant to Section 2.4 pursuant
to an exemption or exemptions from registration under Section 4(2) of the
Securities Act of 1933, as amended (the "Securities Act") and/or Regulation D
promulgated under the Securities Act and the exemption from qualification under
the laws of the State of California and other applicable state securities laws.
Excite@Home and Kendara shall comply with all applicable provisions of, and
rules under, the Securities Act in connection with offering and issuance of
shares of Excite@Home Common Stock and Excite@Home Preferred Stock in the
Merger.  Within fifteen whole business days following the Effective Time,
Excite@Home will cause to be filed with the SEC and use commercially reasonable
efforts to cause to become effective as soon as practicable, a shelf
registration statement on Form S-3 providing for the resale by (i) the Kendara
Stockholders of the shares of Excite@Home Common

                                      -9-
<PAGE>

Stock issued to them in the Merger pursuant to Section 2.1.2 hereof, (ii) the
Kendara Stockholders of the shares of Excite@Home Common Stock issued to them as
a result of the conversion of the Excite@Home Series C Preferred Stock issued to
them in the Merger pursuant to Section 2.1.2 hereof (but not including any
shares of Excite@Home Common Stock issued upon the conversion of Excite@Home
Series C Preferred Stock that are Escrow Shares pursuant to Section 2.5 hereof),
and (iii) the holders of Kendara Warrants of the shares of Excite@Home Common
Stock to be issued to them upon exercise of their Excite@Home Warrants into
which their Kendara Warrants have converted in the Merger pursuant to Section
2.4 hereof, all pursuant to the terms and conditions of Article 12 hereof.

     2.8  Tax-Free Reorganization; No Representations by Kendara.  The parties
          ------------------------------------------------------
intend to adopt this Agreement as a tax-free plan of reorganization and to
consummate the Merger in accordance with the provisions of Section 368(a)(1)(A)
of the Code by virtue of the provisions of Section 368(a)(2)(D) of the Code.
Each of the parties hereto agrees to cooperate in order to qualify the
transaction as a tax free reorganization, and to report the Merger for federal
and state income tax purposes in a manner consistent with such characterization.
However, Excite@Home makes no representations or warranties to Kendara or to any
Kendara Stockholder or other holder of Kendara securities regarding the tax
treatment of the Merger, whether the Merger will qualify as a tax-free plan of
reorganization under the Code, or any of the tax consequences to any Kendara
Stockholder or such holder of this Agreement, the Merger or any of the other
transactions or agreements contemplated hereby, and Kendara and the Kendara
Stockholders acknowledge that Kendara and the Kendara Stockholders are relying
solely on their own tax advisors in connection with this Agreement, the Merger
and the other transactions contemplated by this Agreement.

     2.9  Further Assurances.  If, at any time before or after the Effective
          ------------------
Time, Excite@Home believes or is advised that any further instruments, deeds,
assignments or assurances are reasonably necessary or desirable to consummate
the Merger or to carry out the purposes and intent of this Agreement at or after
the Effective Time, then Excite@Home, the Surviving Corporation and their
respective officers and directors will execute and deliver all such proper
deeds, assignments, instruments and assurances and do all other things necessary
or desirable to consummate the Merger and to carry out the purposes and intent
of this Agreement.

                                   ARTICLE 3
                   Representations and Warranties of Kendara

     Kendara represents and warrants to Excite@Home that, except as set forth in
the letter addressed to Excite@Home from Kendara and dated as of the Agreement
Date (including all schedules thereto) which has been delivered by Kendara to
Excite@Home concurrently with the parties' execution of this Agreement (the
"Kendara Disclosure Letter"), each of the representations, warranties and
statements contained in the following sections of this Article 3 is true and
correct as of the Agreement Date and will be true and correct on and as of the
Closing Date (as defined in Section 7.1 hereof).  For all purposes of this
Agreement, the statements

                                      -10-
<PAGE>

contained in the Kendara Disclosure Letter and its schedules shall also be
deemed to be representations and warranties made and given by Kendara under
Article 3 of this Agreement.

     3.1  Organization and Good Standing.  Kendara is a corporation duly
          ------------------------------
organized, validly existing and in good standing under the laws of the State of
Delaware and has continuously been in good standing under the laws of the state
of Delaware at all times since its inception. Kendara has the corporate power
and authority to own, operate and lease its properties and to carry on its
business as now conducted and as proposed to be conducted, and is qualified to
transact business, and is in good standing, in each jurisdiction where the
character of the properties owned, leased or operated by it or the nature of its
activities make such qualification necessary, except to the extent that any
failure to qualify would not individually or in the aggregate have a Material
Adverse Effect. Kendara has delivered to Excite@Home true and correct copies of
the currently effective Certificate of Incorporation and Bylaws of Kendara, each
as amended to date. Kendara is not in violation of its Certificate of
Incorporation or Bylaws.

     3.2  Subsidiaries.  Kendara does not have any subsidiary or any equity or
          ------------
ownership interest, whether direct or indirect, in any corporation, partnership,
limited liability company, joint venture or other business entity.  Kendara is
not obligated to make nor bound by any agreement or obligation to make any
investment in or capital contribution in or on behalf of any other entity.

     3.3  Power, Authorization and Validity.
          ---------------------------------

          3.3.1  Power and Authority.  Subject to approval by Kendara
                 -------------------
Stockholders, Kendara has all requisite corporate power and authority to enter
into, execute, deliver and perform its obligations under, this Agreement and all
Kendara Ancillary Agreements and to consummate the Merger. The Merger and the
execution, delivery and performance by Kendara of this Agreement, each of the
Kendara Ancillary Agreements and all other agreements, transactions and actions
contemplated hereby or thereby, have been duly and validly approved and
authorized by Kendara's Board of Directors, and the Kendara Founders have
executed and delivered to Excite@Home Investment Representation Letters agreeing
to vote in favor of the Merger and the execution, delivery and performance by
Kendara of this Agreement, each of the Kendara Ancillary Agreements and all
other agreements, transactions and actions contemplated hereby or thereby.

          3.3.2  No Consents.  Except for approval of the Kendara Stockholders
                 -----------
that may be required by the California Corporations Code and for such consents,
approvals, orders, authorizations, registrations, declarations and filings as
may be required under applicable federal and state securities (or related laws)
and the securities or antitrust laws of any foreign country, no consent,
approval, order or authorization of, or registration, declaration or filing
with, any court, administrative agency, commission or other governmental
authority (each, a "Governmental Authority"), or any other person or entity,
governmental or otherwise (including any consent, approval, order,
authorization, registration, declaration or filing pursuant to the Hart-Scott-
Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Act")), is
necessary or required to be made or obtained by Kendara to enable Kendara to
lawfully execute and deliver,

                                      -11-
<PAGE>

enter into, and to perform its obligations under, this Agreement and each of the
Kendara Ancillary Agreements, or to consummate the Merger. The aggregate HSR
Assets of Kendara do not, and will not immediately prior to Closing of the
Merger, equal or exceed $10,000,000, and there is no person, or group of persons
under Common Control, who Control(s) Kendara. To Kendara's knowledge, no Kendara
Stockholder holds or will hold immediately prior to the Closing, $10,000,000 or
more in assets as calculated under the HSR Act for individuals. For purposes of
this Section, the term "HSR Assets" means the total assets (as set forth on the
most recent regularly prepared balance sheet) of Kendara, and, to the extent
they are not consolidated in such balance sheet, the total assets (as set forth
on the most recent regularly prepared balance sheet(s)) of all entities
Controlled by Kendara. For the purposes of this Section, the term "Control" or
"Controlling" means either: (a) holding beneficial ownership, whether direct or
indirect through fiduciaries, agents, controlled entities or other means, of
fifty percent or more of the outstanding voting securities of an issuer; or (b)
in the case of an entity that has no outstanding voting securities, having the
right to fifty percent or more of the profits of the entity, or having the right
in the event of dissolution to fifty percent or more of the assets of the
entity; or (c) having the contractual power presently to designate fifty percent
or more of the directors of a corporation, or in the case of unincorporated
entities, of individuals exercising similar functions. For the purposes of this
Section, "Common Control" means sharing an Ultimate Parent. For the purposes of
this Section, "Ultimate Parent" means a person who is not Controlled by any
other entity.

          3.3.3  Enforceability.  This Agreement and each of the Kendara
                 --------------
Ancillary Agreements are, or when executed by Kendara will be, valid and binding
obligations of Kendara, enforceable against Kendara in accordance with their
respective terms, subject to the effect of (a) applicable bankruptcy,
insolvency, reorganization, moratorium or other similar laws now or hereafter in
effect relating to rights of creditors generally and (b) rules of law and equity
governing specific performance, injunctive relief and other equitable remedies.

     3.4  Capitalization of Kendara.
          -------------------------

          3.4.1  Outstanding Securities.  The authorized capital stock of
                 ----------------------
Kendara consists entirely of: (a) 24,000,000 shares of Kendara Common Stock, of
which a total of 8,179,510 shares are issued and outstanding and (b) 10,000,000
shares of Kendara Preferred Stock, 5,314,816 of which are issued and
outstanding. The numbers of issued and outstanding shares of Kendara Common
Stock and Kendara Preferred Stock held by each of the Kendara Stockholders are
set forth in Schedule 3.4.1(a) to this Agreement. Except as expressly set forth
             -----------------
Schedule 3.4.1(a), no shares of Kendara Common Stock or Kendara Preferred Stock
are issued or outstanding. Kendara holds no treasury shares. An aggregate of
2,857,142 shares of Kendara Common Stock are reserved and authorized for
issuance pursuant to the Kendara Plan, of which options to purchase a total of
677,632 shares of Kendara Common Stock are outstanding, which number does not
include the Permitted Non-Dilutive Options. There are no outstanding Kendara
Warrants. Schedule 3.4.1(b) of this Agreement lists for each person who holds
          -----------------
Kendara Options, the name of the holder of each such Kendara Option, the
exercise price for each such Kendara Option, the number of shares or other
securities covered by each such Kendara Option, and the vesting schedule and the
extent each such Kendara Option are vested as of the Agreement Date.

                                      -12-
<PAGE>

At or prior to the Closing, Kendara shall update Schedule 3.4.1(b) to list each
person who holds a Permitted Non-Dilutive Option, the exercise price for each
such Option, the number of shares or other securities covered by each such
Option, and the vesting schedule. True and complete copies of the standard
agreement under the Kendara Plan and each agreement for each Kendara Option that
does not conform to the standard agreement under the Kendara Plan have been
delivered by Kendara to Excite@Home or its legal counsel, Fenwick & West LLP.
The vesting or exercisability (or any other material terms) of any Kendara
Option, except as disclosed in the Kendara Disclosure Letter, will not
accelerate or otherwise change as a result of the execution and delivery of this
Agreement or the consummation of the Merger or the transactions contemplated
hereby or the occurrence of any subsequent event (such as the termination of
employment of the option holder following consummation of the Merger). No
Kendara Options have been granted or are outstanding except under and pursuant
to the Kendara Plan.

          3.4.2  Valid Issuance.  As of the Closing Date, there will have been
                 --------------
no change in the authorized or outstanding capital stock of Kendara as
represented in Section 3.4.1. All issued and outstanding shares of Kendara
Common Stock and Kendara Preferred Stock have been duly authorized and validly
issued, are fully paid and nonassessable, are not subject to any preemptive
right, right of first refusal, right of first offer or right of rescission, and
have been offered, issued, sold and delivered by Kendara in compliance with (a)
all registration or qualification requirements (or applicable exemptions
therefrom) of all applicable securities laws and, to the knowledge of Kendara,
other applicable Legal Requirements and (b) all requirements set forth in
applicable agreements or instruments. All shares of Kendara Common Stock subject
to issuance under Kendara Options and Kendara Warrants, upon issuance on the
terms and conditions specified in the instruments pursuant to which they are
issuable, will be duly authorized, validly issued, fully paid and nonassessable.
All outstanding Kendara Options and Kendara Warrants have been issued and
granted in compliance with (a) all registration or qualification requirements
(or applicable exemptions therefrom) of all applicable securities laws and, to
the knowledge of Kendara, other applicable Legal Requirements and (b) all
requirements set forth in applicable agreements or instruments.

          3.4.3  No Other Options, Warrants or Rights. Other than is set forth
                 ------------------------------------
in Sections 3.4.1 and 3.4.2 above, there are no options, warrants, convertible
securities or other securities, calls, commitments, conversion privileges,
preemptive rights, rights of first refusal, rights of first offer or other
rights or agreements outstanding to purchase or otherwise acquire (whether
directly or indirectly) any shares of Kendara's authorized but unissued capital
stock or any securities convertible into or exchangeable for any shares of
Kendara's capital stock or obligating Kendara to grant, issue, extend, or enter
into any such option, warrant, convertible security or other security, call,
commitment, conversion privilege, preemptive right, right of first refusal,
right of first offer or other right or agreement to obtain any shares of
Kendara's capital stock, and there is no liability for dividends accrued but
unpaid.

          3.4.4  No Voting Arrangements or Registration Rights. Except as
                 ---------------------------------------------
contemplated by this Agreement, there are no voting agreements, voting trusts or
proxies applicable to any of Kendara's outstanding capital stock or any Kendara
Options or to the conversion of any shares of Kendara's capital stock in the
Merger pursuant to any agreement or obligation to which Kendara

                                      -13-
<PAGE>

is a party or, to Kendara's knowledge, pursuant to any other agreement or
obligation. Kendara is not under any obligation to register under the Securities
Act any of its presently outstanding shares of stock or other securities or any
stock or other securities that may be subsequently issued.

     3.5  No Conflict.  Neither the execution and delivery of this Agreement
          -----------
nor any of the Kendara Ancillary Agreements by Kendara, nor the consummation of
the Merger or any of the other transactions contemplated hereby or thereby, will
conflict with, or (with or without notice or lapse of time, or both) result in a
termination, breach, impairment or violation of, or constitute a default under:
(a) any provision of the Certificate of Incorporation or Bylaws of Kendara as
currently in effect; (b) any federal, state, local or foreign judgment, writ,
decree, order, statute, rule or regulation applicable to Kendara or any of its
material assets or properties; or (c) any material instrument, agreement,
contract, undertaking, understanding, letter of intent, memorandum of
understanding or commitment (whether verbal or in writing) to which Kendara is a
party or by which Kendara or any of its material assets or properties are bound,
except in the case of (b) or (c) for any such conflicts, terminations, breaches,
impairments, violations or defaults which would not have a Material Adverse
Effect on Kendara or which would not have a material adverse effect on Kendara's
ability to consummate the Merger.  Neither Kendara's entering into this
Agreement nor the consummation of the Merger or the transactions contemplated
thereby will give rise to, or trigger the application of, any rights of any
third party that would come into effect upon the effectiveness of the Merger.
The consummation of the Merger by Kendara will not require the consent, release,
waiver or approval of any third party (including the consent of any party
required to be obtained in order to keep any agreement between such party and
Kendara in effect following the Merger or to provide that Kendara is not in
breach or violation of any such agreement following the Merger), other than the
approval of this Agreement and the Merger by Kendara Stockholders under Delaware
law and California law except where the failure to obtain such consent, release,
waiver or approval would not have a Material Adverse Effect on Kendara.

     3.6  Litigation.  There is no action, suit, arbitration, mediation,
          ----------
proceeding, claim or investigation pending against Kendara (or against any
officer, director, employee or agent of Kendara in their capacity as such or
relating to their employment, services or relationship with Kendara) before any
court, Governmental Authority or arbitrator, nor, to Kendara's knowledge, has
any such action, suit, arbitration, mediation, proceeding, claim or
investigation been threatened. There is no judgment, decree, injunction, rule or
order of any court, Governmental Authority or arbitrator outstanding against
Kendara. To Kendara's knowledge, there is no basis for any person to assert a
claim against Kendara based upon: (a) Kendara's entering into this Agreement or
any Kendara Ancillary Agreement or consummating the Merger or any of the
transactions contemplated by this Agreement or any Kendara Ancillary Agreement;
or (b) a claim of ownership of, or options, warrants or other rights to acquire
ownership of, any shares of the capital stock of Kendara or any rights as a
Kendara stockholder, including any option, warrant or preemptive rights or
rights to notice or to vote, other than for the rights of the Kendara
Stockholders with respect to the Kendara Common Stock shown as being owned by
such persons on Schedule 3.4.1(a) hereof and the rights of holders of Kendara
Options and Kendara Warrants shown as being owned by such persons on Schedule
3.4.1(b) hereof.

                                      -14-
<PAGE>

     3.7  Taxes.
          -----

          3.7.1  Kendara has timely filed all federal, state, local and foreign
tax and information returns required to be filed by it, has timely paid all
taxes required to be paid by it for which payment is due, except to the extent
that an accrual or reserve for such taxes has been reflected in accordance with
GAAP (as defined in Section 3.8) on the Balance Sheet (as defined in Section
3.8), has established an adequate accrual or reserve for the payment of all
taxes payable in respect of the periods subsequent to the periods covered by its
most recent applicable tax returns (which accrual or reserve as of the Balance
Sheet Date is fully reflected on the Balance Sheet and in any more recent
balance sheet of Kendara provided by Kendara to Excite@Home on or before the
Agreement Date), has made all necessary estimated tax payments, except to the
extent that an accrual or reserve for such taxes has been reflected in
accordance with GAAP on the Balance Sheet, and has no liability for taxes in
excess of the amount so paid or accruals or reserves so established. All such
returns and reports are true, correct and complete, except to the extent that an
accrual or reserve for such taxes has been reflected in accordance with GAAP on
the Balance Sheet, and Kendara has provided Excite@Home with true and correct
copies of such returns and reports. Kendara is not delinquent in the payment of
any tax or in the filing of any tax returns, except to the extent that an
accrual or reserve for such taxes has been reflected in accordance with GAAP on
the Balance Sheet, and no deficiencies for any tax have been threatened,
claimed, proposed or assessed against Kendara or any of the officers, employees
or agents of Kendara in their capacity as such. Kendara has not received any
notification from the Internal Revenue Service or any other taxing authority
regarding any material issues that: (a) are currently pending before the
Internal Revenue Service or any other taxing authority (including but not
limited to any sales or use tax authority) regarding Kendara, or (b) have been
raised by the Internal Revenue Service or other taxing authority and not yet
finally resolved. No tax return of Kendara is under audit by the Internal
Revenue Service or any state or local taxing agency or authority and any such
past audits (if any) have been completed and fully resolved to the satisfaction
of the applicable tax authority conducting such audit and all taxes and any
penalties or interest determined by such audit to be due from Kendara have been
paid in full to the applicable taxing authorities. No tax liens are currently in
effect against any assets of Kendara other than liens which arise by operation
of law for taxes not yet due and payable. There is not in effect any waiver by
Kendara of any statute of limitations with respect to any taxes or agreed to any
extension of time for filing any tax return which has not been filed; and
Kendara has not consented to extend to a date later than the date hereof the
period in which any tax may be assessed or collected by any taxing authority.
Kendara is not a "personal holding company" within the meaning of the Code.
Kendara has not filed any election under Section 341(f) of the Code. Kendara has
withheld all taxes, including but not limited to federal and state income taxes,
FICA, Medicare, FUTA and other taxes, required to be withheld, and paid such
withheld amounts to the appropriate tax authority within the time prescribed by
law. Since its inception, Kendara has not been a "United States real property
holding corporation," as defined in Section 897(c)(2) of the Code, and in
Section 1.897-2(b) of the Treasury Regulations issued thereunder (the
"Regulations"), and Kendara has filed with the Internal Revenue Service all
statements, if any, with its United States income tax returns which are required
under Section 1.897-2(h) of the Regulations.

                                      -15-
<PAGE>

          3.7.2  For the purposes of this Section, the terms "tax" and "taxes"
include all federal, state, local and foreign income, alternative or add-on
minimum income, gains, franchise, excise, property, property transfer, sales,
use, employment, license, payroll, ad valorem, documentary, stamp, withholding,
occupation, recording, value added or transfer taxes, governmental charges,
fees, customs duties, levies or assessments (whether payable directly or by
withholding), and, with respect to any such taxes, any estimated tax, interest,
fines and penalties or additions to tax and interest on such fines, penalties
and additions to tax.

     3.8  Kendara Financial Statements.  Kendara has delivered to Excite@Home
          ----------------------------
as an attachment to the Kendara Disclosure Letter  the unaudited consolidated
balance sheet of Kendara as of December 31, 1999 and Kendara's unaudited
consolidated statements of operations, statements of cash flows and statements
of changes in stockholders' equity (or, as applicable, statement of changes in
members' interests) for the year ended December 31, 1999 (all such financial
statements of Kendara and any notes thereto are hereinafter collectively
referred to as the "Kendara Financial Statements").  The Kendara Financial
Statements: (a) are derived from and are in accordance with the books and
records of Kendara, (b) fairly present the financial condition of Kendara at the
dates therein indicated and the results of operations for the periods therein
specified, and (c) have been prepared in accordance with United States generally
accepted accounting principles ("GAAP") applied on a basis consistent with prior
periods except for any absence of notes thereto.  Kendara has no material debt,
liability or obligation of any nature, whether accrued, absolute, contingent or
otherwise, and whether due or to become due, except for those (a) shown on
Kendara's unaudited balance sheet as of December 31, 1999 included in the
Kendara Financial Statements (the "Balance Sheet"), (b) that may have been
incurred after December 31, 1999 (the "Balance Sheet Date") in the ordinary
course of Kendara's business consistent with its past practices, and (c) that
are not material in amount, either individually or collectively, and are not
required to be set forth in the Balance Sheet under GAAP.  All reserves
established by Kendara that are set forth in or reflected in the Balance Sheet
are adequate.  At the Balance Sheet Date, there were no material loss
contingencies (as such term is used in Statement of Financial Accounting
Standards No. 5 issued by the Financial Accounting Standards Board in March
1975) which are not adequately provided for in the Balance Sheet as required by
said Statement No. 5.  The Financial Statements comply in all material respects
with the American Institute of Certified Public Accountants' Statement of
Position 97-2.  Kendara's unaudited balance sheet at the Closing Date shall have
a cash balance of equal to or greater than (a) $3,600,000 if the Closing occurs
on or prior to February 11, 2000; and (b) $2,600,000 if the closing occurs after
February 11, 2000 but on or before the Termination Date.  At the Closing Date,
Kendara's Current Assets were and will be equal to or greater than its Total
Liabilities.  For purposes of the preceding sentence, "Current Assets" shall
mean cash and other assets expected to be converted into cash within one year,
and "Total Liabilities" shall mean probable future sacrifices of economic
benefits arising from present obligations of Kendara to transfer assets or
provide services to other persons in the future as a result of past
transactions.

     3.9  Title to Properties.  Kendara has good and marketable title to all of
          -------------------
its assets and properties (including those shown on the Balance Sheet), free and
clear of all Encumbrances, other than liens for current taxes that are not yet
due and payable and except for liens which in the aggregate do not secure more
than $10,000 in liabilities. All machinery, vehicles, equipment

                                      -16-
<PAGE>

and other tangible personal property owned or leased by Kendara or used in its
business are in good condition and repair, normal wear and tear excepted, and
all leases of real or personal property to which Kendara is a party are fully
effective and afford Kendara peaceful and undisturbed leasehold possession of
the real or personal property that is the subject of the lease. Kendara is not
in violation of any zoning, building, safety or environmental ordinance,
regulation or requirement or other law or regulation applicable to the operation
of its owned or leased properties, nor has Kendara received any notice of
violation of law with which it has not complied. Kendara does not own any real
property. Item 3.9 to the Kendara Disclosure Letter sets forth a complete and
          --------
accurate list and a brief description of all personal property owned or leased
by Kendara with an individual value of $1,000 or greater.

     3.10  Absence of Certain Changes.  Since the Balance Sheet Date, Kendara
           --------------------------
has operated its business in the ordinary course consistent with its past
practice, and since such date there has not been with respect to Kendara any:

           (a)  Material Adverse Change in Kendara;

           (b)  amendment or change in the Certificate of Incorporation or
Bylaws;

           (c)  incurrence, creation or assumption by Kendara of (i) any
Encumbrance on any of the assets or properties of Kendara, (ii) any obligation
or liability or any indebtedness for borrowed money, or (iii) any contingent
liability as a guarantor or surety with respect to the obligations of others;

           (d)  grant or issuance of any options, warrants or other rights to
acquire from Kendara, directly or indirectly, except as described in Sections
3.4.1 and 3.4.2 hereof, or any offer, issuance or sale by Kendara of any debt or
equity securities of Kendara;

           (e)  any acceleration or release of any vesting condition to the
right to exercise any option, warrant or other right to purchase or otherwise
acquire any shares of Kendara's capital stock, or any acceleration or release of
any right to repurchase shares of Kendara's capital stock upon the stockholder's
termination of employment or services with Kendara or pursuant to any right of
first refusal;

           (f)  payment or discharge by Kendara of any Encumbrance on any asset
or property of Kendara, or the payment or discharge of any liability of Kendara,
in each case that was not either shown on the Balance Sheet or incurred in the
ordinary course of Kendara's business after the Balance Sheet Date in an amount
not in excess of $10,000 for any single liability to a particular creditor;

           (g)  purchase, license, sale, assignment or other disposition or
transfer, or any agreement or other arrangement for the purchase, license, sale,
assignment or other disposition or transfer, of any of the assets, properties or
goodwill of Kendara other than a license of any product or products of Kendara
made in the ordinary course of Kendara's business consistent with its past
practice;

                                      -17-
<PAGE>

          (h)  damage, destruction or loss of any property or asset, whether or
not covered by insurance, having (or likely with the passage of time to have) a
Material Adverse Effect on Kendara;

          (i)  declaration, setting aside or payment of any dividend on, or the
making of any other distribution in respect of, the capital stock of Kendara, or
any split, combination or recapitalization of the capital stock of Kendara or
any direct or indirect redemption, purchase or other acquisition of any capital
stock of Kendara or any change in any rights, preferences, privileges or
restrictions of any outstanding security of Kendara;

          (j)  change or increase in the compensation payable or to become
payable to any of the officers, directors, or employees of Kendara, or in any
bonus or pension, insurance or other benefit payment or arrangement (including
without limitation stock awards, stock option grants, stock appreciation rights
or stock option grants) made to or with any of such officers, employees or
agents except in connection with normal employee salary or performance reviews
or otherwise in the ordinary course of Kendara's business consistent with its
past practice and except as contemplated in this Agreement;

          (k)  change with respect to the management, supervisory or other key
personnel of Kendara;

          (l)  obligation or liability incurred by Kendara to any of its
officers, directors or stockholders, except for normal and customary
compensation and expense allowances payable to officers in the ordinary course
of Kendara's business consistent with its past practice;

          (m)  making by Kendara of any loan, advance or capital contribution
to, or any investment in, any officer, director or stockholder of Kendara or any
firm or business enterprise in which any such person had a direct or indirect
material interest at the time of such loan, advance, capital contribution or
investment;

          (n)  entering into, amendment of, relinquishment, termination or non-
renewal by Kendara of any contract, lease, transaction, commitment or other
right or obligation other than in the ordinary course of its business consistent
with its past practice; or any written or oral indication or assertion by the
other party thereto of any material problems with Kendara's services or
performance under such contract, lease, transaction, commitment or other right
or obligation or its desire to so amend, relinquish, terminate or not renew any
such contract, lease, transaction, commitment or other right or obligation;

          (o)  material change in the manner in which Kendara extends discounts,
credits or warranties to customers or otherwise deals with its customers;

          (p)  entering into by Kendara of any transaction, contract or
agreement that by its terms requires or contemplates a current and/or future
financial commitment, expense (inclusive of overhead expense) or obligation on
the part of Kendara that involves in excess of $25,000 or that is not entered
into in the ordinary course of Kendara's business, or the conduct of

                                      -18-
<PAGE>

any business or operations other than in the ordinary course of Kendara's
business consistent with its past practice;

           (q)  any license, transfer or grant of a right under any Kendara IP
Rights (as defined in Section 3.13 below), other than those licensed,
transferred or granted in the ordinary course of Kendara's business consistent
with its past practices; or

           (r)  any agreement or arrangement made by Kendara to take any action
which, if taken prior to the Agreement Date, would have made any representation
or warranty of Kendara set forth in Article 3 of this Agreement untrue or
incorrect as of the date when made.

     3.11  Contracts and Commitments/Licenses and Permits.  Item 3.11 to the
           ----------------------------------------------   ---------
Kendara Disclosure Letter sets forth a list of each of the following written or
oral contracts, agreements, leases, licenses, permits, assignments, mortgages,
transactions, obligations, commitments or other instruments to which Kendara is
a party or to which Kendara or any of its assets or properties is bound:

           (a)  any contract or agreement providing for payments (whether fixed,
contingent or otherwise) by or to Kendara in an aggregate amount of $25,000 or
more;

           (b)  any dealer, distributor, OEM (Original Equipment Manufacturer),
VAR (Value Added Reseller), sales representative or similar agreement under
which any third party is authorized to sell, sublicense, lease, distribute,
market or take orders for, any product, service or technology of Kendara;

           (c)  any contract providing for the development of any software,
content (including without limitation textual content and visual, photographic
or graphics content), technology or intellectual property for (or for the
benefit or use of) Kendara, or providing for the purchase or license of any
software, content (including without limitation textual content and visual or
graphics content), technology or intellectual property to (or for the benefit or
use of) Kendara, which software, content, technology or intellectual property is
in any manner used or incorporated (or is contemplated by Kendara to be used or
incorporated) in connection with any aspect or element of any product, service
or technology of Kendara (other than software generally available to the public
at a per copy license fee of less than $500 per copy) to the extent necessary
for the conduct of the business of Kendara as presently conducted or
contemplated or previously contemplated;

           (d)  any joint venture or partnership contract or other agreement
which has involved, or is reasonably expected to involve, a sharing of profits,
expenses or losses with any other party;

           (e)  any contract or commitment for or relating to the employment of
any officer, employee or consultant of Kendara or any other type of contract or
understanding with any officer, employee or consultant of Kendara that is not
immediately terminable by Kendara without cost or other liability, except those
contemplated in Section 9.11 of this Agreement;

                                      -19-
<PAGE>

           (f)  any indenture, mortgage, trust deed, promissory note, loan
agreement, security agreement, guarantee or other agreement or commitment for
the borrowing of money, for a line of credit or for a leasing transaction of a
type required to be capitalized in accordance with Statement of Financial
Accounting Standards No. 13 of the Financial Accounting Standards Board;

           (g)  any lease or other agreement under which Kendara is lessee of or
holds or operates any items of tangible personal property or real property owned
by any third party;

           (h)  any agreement that restricts Kendara from engaging in any aspect
of its business; from participating or competing in any line of business or
market; from freely setting prices for Kendara's products, services or
technologies (including but not limited to most favored customer pricing
provisions); from engaging in any business in any market or geographic area; or
from soliciting potential employees, consultants, contractors or other suppliers
or customers;

           (i)  any Kendara IP Rights Agreement (as defined in Section 3.13);

           (j)  any agreement relating to the sale, issuance, grant, exercise,
award, purchase, repurchase or redemption of any shares of capital stock or
other securities of Kendara or any options, warrants or other rights to purchase
or otherwise acquire any such shares of capital stock, other securities or
options, warrants or other rights therefor, except for those agreements
conforming to the standard agreement under the Kendara Plan;

           (k)  any contract with or commitment to any labor union; and

           (l)  any Governmental Permit (as defined in Section 3.14.3).

     A true and complete copy of each agreement or document required by these
subsections (a) through (l) of this Section to be listed on Item 3.11 to the
                                                            ---------
Kendara Disclosure Letter (such agreements and documents being hereinafter
collectively referred to as the "Kendara Material Agreements") and a copy of
each Governmental Permit required by subsection (l) of this Section to be listed
on Item 3.11 to the Kendara Disclosure Letter has been delivered to
Excite@Home's legal counsel.

     3.12  No Default; No Consent Required; No Restrictions.  Kendara is not in
           ------------------------------------------------
material breach or default under any Kendara Material Agreement.  Kendara has no
material liability for renegotiation of government contracts or subcontracts, if
any.  Except as set forth in Item 3.12 to the Kendara Disclosure Letter, no
                             ---------
consent, notice or approval of any third party is required to ensure that,
following the Effective Time, any Kendara Material Agreement will continue to be
in full force and effect without any breach or violation thereof caused by
virtue of the Merger or by any other transaction called for by this Agreement or
any Kendara Ancillary Agreement.  Kendara is not a party to, and no asset or
property of Kendara is bound or affected by, any judgment, injunction, order,
decree, contract, covenant or agreement (noncompete or otherwise) that restricts
or prohibits, purports to restrict or prohibit, Kendara or, following the
Effective Time, the Surviving Corporation or Excite@Home, from freely engaging
in any business now conducted or contemplated by Kendara or from competing
anywhere in the world (including any

                                      -20-
<PAGE>

contracts, covenants or agreements restricting the geographic area in which
Kendara may sell, license, market, distribute or support any products or
technology or provide services; or restricting the markets, customers or
industries that Kendara may address in operating its business; or restricting
the prices which Kendara may charge for its products or technology or services),
or includes any grants by Kendara of exclusive rights or licenses. No event has
occurred, and no circumstance or condition exists, that (with or without notice
or lapse of time) will, or would reasonably be expected to, (a) result in a
violation or breach of any of the provisions of any Kendara Material Agreement,
or (b) to Kendara's knowledge, give any third party (i) the right to declare a
default or exercise any remedy under any Kendara Material Agreement, (ii) the
right to a rebate, chargeback, penalty or change in delivery schedule under any
Kendara Material Agreement, (iii) the right to accelerate the maturity or
performance of any obligation of Kendara under any Kendara Material Agreement,
or (iv) the right to cancel, terminate or modify any Kendara Material Agreement,
except in each such case for such defaults, acceleration rights, termination
rights and other rights that have not had and would not reasonably be expected
to have individually or in the aggregate a Material Adverse Effect on Kendara.
Kendara has not received any notice or other communication regarding any actual
or possible violation or breach of, or default under, any Kendara Material
Agreement.

     3.13  Intellectual Property.
           ---------------------

     3.13.1  Kendara owns, or has the valid right or license to use, possess,
sell, license, copy, distribute, market, advertise and/or dispose of all
Intellectual Property (as defined below) to the extent necessary or required for
the conduct of the Kendara Business (as defined below) (such Intellectual
Property being hereinafter collectively referred to as the "Kendara IP Rights"),
and such rights to use, possess, sell, license, copy, distribute, market,
advertise and/or dispose of are sufficient for such conduct of such business. As
used herein, the term "Kendara Business" means the business of Kendara as
presently conducted, presently proposed to be conducted, and as previously
proposed to be conducted (but only with respect to the relevance engine and
display technology, commonly referred to as the Kendara Assistant, for
previously proposed to be conducted business). As used herein, the term
"Intellectual Property" means, collectively, all worldwide industrial and
intellectual property rights, including, without limitation, patents, patent
applications, patent rights, trademarks, trademark registrations and
applications therefor, trade dress rights, trade names, service marks, service
mark registrations and applications therefor, Internet domain names, Internet
and World Wide Web URLs or addresses, copyrights, copyright registrations and
applications therefor, mask work rights, mask work registrations and
applications therefor, franchises, licenses, inventions, trade secrets, know-
how, customer lists, supplier lists, proprietary processes and formulae,
software source code and object code, algorithms, net lists, architectures,
structures, screen displays, photographs, images, layouts, inventions,
development tools, designs, blueprints, specifications, technical drawings (or
similar information in electronic format) and all documentation and media
constituting, describing or relating to the foregoing, including, without
limitation, manuals, programmers' notes, memoranda and records. As used in this
Section 13, "Kendara-Owned IP Rights" means Kendara IP Rights which are owned or
exclusively licensed to Kendara; and "Kendara-Licensed IP Rights" means Kendara
IP Rights which are not Kendara-Owned IP Rights. By way of clarification, if a
vendor grants certain license rights to Kendara, only the license rights granted

                                      -21-
<PAGE>

by the vendor to Kendara is included under the term Kendara-Licensed IP Rights
and Kendara IP Rights.

     3.13.2  Neither the execution, delivery and performance of this Agreement,
the Certificate of Merger, or the consummation of the Merger and the other
transactions contemplated by this Agreement and/or by Kendara Ancillary
Agreements will, in accordance with their terms: (a) constitute a material
breach of or default under any instrument, contract, license or other agreement
governing any Kendara IP Right to which Kendara is a party (collectively, the
"Kendara IP Rights Agreements"); (b) cause the forfeiture or termination of, or
give rise to a right of forfeiture or termination of, any Kendara IP Right; or
(c) materially impair the right of Kendara or the Surviving Corporation to use,
possess, sell or license any Kendara IP Right or portion thereof. There are no
royalties, honoraria, fees or other payments payable by Kendara to any third
person (other than salaries payable to employees and independent contractors not
contingent on or related to use of their work product) as a result of the
ownership, use, possession, license-in, sale, marketing, advertising or
disposition of any Kendara IP Rights by Kendara to the extent necessary for the
conduct of the Kendara Business and none will become payable as a result of the
consummation of the transactions contemplated by this Agreement, in and of
themselves, except for per copy license fees of less than $500 for software
generally commercially available to the public.

     3.13.3  Neither the manufacture, marketing, license, sale, furnishing
or intended use of any product or service currently licensed, utilized, sold,
provided or furnished by Kendara or currently under development by Kendara
violates any license or agreement between Kendara and any third party or
infringes or misappropriates any Intellectual Property Right of any other party;
and there is no pending or threatened, claim or litigation contesting the
validity, ownership or right of Kendara to exercise any Kendara IP Right nor, to
the best knowledge of Kendara, is there any legitimate basis for any such claim,
nor has Kendara received any notice asserting that any Kendara IP Right or the
proposed use, sale, license or disposition thereof conflicts or will conflict
with the rights of any other party, nor, to the best knowledge of Kendara, is
there any legitimate basis for any such assertion.

     3.13.4  No current or former employee, consultant or independent contractor
of Kendara: (a) is in material violation of any term or covenant of any
employment contract, patent disclosure agreement, invention assignment
agreement, non-disclosure agreement, noncompetition agreement or any other
contract or agreement with any other party by virtue of such employee's,
consultant's, or independent contractor's being employed by, or performing
services for, Kendara or using trade secrets or proprietary information of
others without permission that would be likely to have a Material Adverse Effect
on Kendara; or (b) has developed any technology, software or other
copyrightable, patentable, or otherwise proprietary work for Kendara that is
subject to any agreement under which such employee, consultant or independent
contractor has assigned or otherwise granted to any third party any rights
(including without limitation Intellectual Property) in or to such technology,
software or other copyrightable, patentable or otherwise proprietary work. The
employment of any employee of Kendara or the use by Kendara of the services of
any consultant or independent contractor does not subject Kendara to any
liability to any third party for improperly soliciting such employee or

                                      -22-
<PAGE>

consultant, or independent contractor to work for Kendara, whether such
liability is based on contractual or other legal obligations to such third
party.

     3.13.5  Kendara has taken reasonably necessary and appropriate steps to
protect, preserve and maintain the secrecy and confidentiality of the Kendara IP
Rights (in the case of Kendara-Licensed IP Rights, to the extent required by
such third parties) and to preserve and maintain all Kendara's interests and
proprietary rights in Kendara IP Rights. All officers, employees and consultants
of Kendara having access to proprietary information of Kendara, its customers or
business partners and inventions owned by Kendara, have executed and delivered
to Kendara an agreement regarding the protection of such proprietary information
and the assignment of Kendara's inventions to Kendara (in the case of
proprietary information of Kendara's customer and business partners, to the
extent required by such customers and business partners); and copies of all such
agreements have been delivered to Excite@Home's counsel. Kendara has secured
valid written assignments from all of Kendara's consultants, contractors and
employees who were involved in, or who contributed to, the creation or
development of any Kendara-Owned IP Rights, of the rights to such contributions
that may be owned by such persons or that Kendara does not already own by
operation of law. No current or former employee, officer, director, consultant
or independent contractor of Kendara has any right, license, claim or interest
whatsoever in or with respect to any Kendara IP Rights.

     3.13.6  Item 3.13.6 to the Kendara Disclosure Letter contains a true and
             -----------
complete list of (i) all worldwide registrations made by or on behalf of Kendara
of any patents, copyrights, mask works, trademarks, service marks, Internet
domain names or Internet or World Wide Web URLs or addresses with any
governmental or quasi-governmental authority; and (ii) all applications,
registrations, filings and other formal written governmental actions made or
taken pursuant to federal, state and foreign laws by Kendara to secure, perfect
or protect its interest in Kendara IP Rights, including, without limitation, all
patent applications, copyright applications, and applications for registration
of trademarks and service marks. All registered patents, trademarks, service
marks, Internet domain names, Internet or World Wide Web URLs or addresses, and
copyrights held by Kendara are valid, enforceable and subsisting.

     3.13.7  Kendara owns all right, title and interest in and to all
Kendara-Owned IP Rights free and clear of all security interests, liens,
pledges, mortgages, assignments, claims, licenses, restrictions and encumbrances
(other than licenses and rights listed in Item 3.13.8). Kendara's right, license
and interest in and to all Kendara-Licensed IP Rights are free and clear of all
security interests, liens, pledges, mortgages, assignments, claims, licenses,
and encumbrances (other than licenses and rights listed in Item 3.13.8).

     3.13.8  Item 3.13.8 to the Kendara Disclosure Letter contains a true and
             -----------
complete list of (i) all licenses, sublicenses and other agreements as to which
Kendara is a party and pursuant to which any person or entity is authorized to
use any Kendara IP Rights, and (ii) all licenses, sublicenses and other
agreements as to which Kendara is a party and pursuant to which Kendara is
authorized to use any third party patents, trademarks, Internet domain names,
Internet or World Wide Web URLs or addresses, or copyrights, including but not
limited to software.

                                      -23-
<PAGE>

     3.13.9   Neither Kendara nor any other party acting on behalf, has
disclosed or delivered to any party, or permitted the disclosure or delivery to
any escrow agent or other party, of any Kendara Source Code (as defined below).
No event has occurred, and no circumstance or condition exists, that (with or
without notice or lapse of time) will, or would reasonably be expected to,
result in the disclosure or delivery by Kendara or any other party acting on
Kendara's behalf to any party of any Kendara Source Code (as defined below).
Item 3.13.9 of the Kendara Disclosure Letter identifies each contract, agreement
-----------
and instrument (whether written or oral) pursuant to which Kendara has
deposited, or is or may be required to deposit, with an escrowholder or any
other party, any Kendara Source Code and further describes whether the execution
of this Agreement or the consummation of the Merger or any of the other
transactions contemplated by this Agreement, in and of itself, would reasonably
be expected to result in the release from escrow of any Kendara Source Code. As
used in this Section 3.13.9, "Kendara Source Code" means, collectively, any
software source code, or any material portion or aspect of the software source
code, or any material proprietary information or algorithm contained in or
relating to any software source code, of any Kendara-Owned IP Rights or any
other product marketed or currently proposed to be marketed by Kendara.

          3.13.10  There is no unauthorized use, disclosure, infringement or
misappropriation of any Kendara IP Rights by any third party, including any
employee or former employee of Kendara.  Kendara has not agreed to indemnify any
person for any infringement of any Intellectual Property of any third party by
any product or service that has been sold, licensed to third parties, leased to
third parties, supplied, marketed, distributed, or provided by Kendara.

     3.13.11  To Kendara's knowledge, all software developed by Kendara and
licensed by Kendara to customers and all other products manufactured, sold,
licensed, leased or delivered by Kendara to customers and all services provided
by Kendara to customers on or prior to the Closing Date conform in all material
respects (to the extent required in contracts with such customers) to applicable
contractual commitments, express and implied warranties, product specifications
and product documentation and to any representations provided to customers and
Kendara has no material liability (and, to Kendara's knowledge, there is no
legitimate basis for any present or future action, suit, proceeding, hearing,
investigation, charge, complaint, claim or demand against Kendara giving rise to
any material liability relating to the foregoing contracts that could have a
Material Adverse Effect on Kendara) for replacement or repair thereof or other
damages in connection therewith in excess of any reserves therefor reflected on
the Balance Sheet.

     3.13.12  All of the software, hardware or other technology developed,
owned, licensed and/or marketed or distributed by Kendara to the extent
necessary for the conduct of the Kendara Business are Year 2000 Compliant. "Year
2000 Compliant" means, to the extent related to date-related errors, as applied
to software, hardware or other technology, that: (i) such software, hardware or
other technology will operate and correctly store, represent and process
(including sort) all dates (including single and multi-century formulas and leap
year calculations), such that date-related errors will not occur when the date
being used is in the Year 2000, or in a year preceding or following the Year
2000; (ii) such software, hardware or other technology has been written and
tested to support numeric and date transitions from the twentieth century to the

                                      -24-
<PAGE>

twenty-first century, and back (including without limitation all calculations,
aging, reporting, printing, displays, reversals, disaster and vital records
recoveries) without date-related error, corruption or impact to current and/or
future operations; and (iii) such software, hardware or other technology will
function without error or interruption related to any date information,
specifically including errors or interruptions from functions which may involve
date information from more than one century.   Notwithstanding anything to the
contrary, the foregoing applies only if such software, hardware or other
technology receive properly formatted data.

     No government funding; facilities of a university, college, other
educational institution or research center; or funding from third parties (other
than funds received in consideration for capital stock of Kendara) was used in
the development of the computer software programs or applications owned by the
Company.  No current or former employee, consultant or independent contractor of
Kendara, who was involved in, or who contributed to, the creation or development
of any Kendara IP Rights, has performed services for the government, university,
college, or other educational institution or research center during a period of
time during which such employee, consultant or independent contractor was also
performing services for Kendara.

     3.14    Compliance with Laws.
             --------------------

     3.14.1  Kendara has complied, and is now and at the Closing Date will be in
compliance with, all applicable federal, state or local laws, ordinances,
regulations, and rules, and all orders, writs, injunctions, awards, judgments,
and decrees, and to Kendara's knowledge, all foreign laws, ordinances,
regulations and rules, applicable to it or to its assets, properties, and
business (and any regulations promulgated thereunder) (collectively, "Applicable
Law"), except for such noncompliance which, individually or in the aggregate,
would not have a Material Adverse Effect on Kendara. Kendara holds all valid
licenses and other governmental permits that are necessary and/or legally
required to be held by it to conduct its business as presently conducted, except
where the failure to hold such licenses and permits would not individually or in
the aggregate have a Material Adverse Effect on Kendara.

     3.14.2  All materials and products distributed or marketed by Kendara have
at all times made all disclosures to users or customers required by Applicable
Law and none of such disclosures made or contained in any such materials have
been inaccurate, misleading or deceptive, except where the failure to make such
disclosure or where such inaccurate, misleading or deceptive disclosures,
individually or in the aggregate, would not have a Material Adverse Effect on
Kendara.

     3.14.3  Kendara holds all material permits, licenses and approvals from,
and has made all material filings with, government (and quasi-governmental)
agencies and authorities, that are necessary for Kendara to conduct its present
business without any violation of Applicable Law ("Governmental Permits") and
all such Governmental Permits are in full force and effect. Kendara has not
received any notice or other communication from any Governmental Authority
regarding (a) any actual or possible violation of law or any Governmental Permit
or any failure to comply with any term or requirement of any Governmental
Permit, or (b) any actual or possible

                                      -25-
<PAGE>

revocation, withdrawal, suspension, cancellation, termination or modification of
any Governmental Permit.

     3.14.4  Neither Kendara nor any director, officer, agent or employee of
Kendara has, for or on behalf of Kendara, (a) used any funds for unlawful
contributions, gifts, entertainment or other unlawful expenses relating to
political activity, (b) made any unlawful payment to foreign or domestic
government officials or employees or to foreign or domestic political parties or
campaigns or violated any provision of the Foreign Corrupt Practices Act of
1977, as amended, or (c) made any other payment in violation of Applicable Law,
which violation, for the purposes of clause (c) only, does not have a Material
Adverse Effect on Kendara.

     3.15    Certain Transactions and Agreements.  None of the officers and
             -----------------------------------
directors of Kendara and, to Kendara's knowledge, none of the employees or
stockholders of Kendara, nor any member of their immediate families, has any
direct ownership interest in any firm or corporation that competes with, or does
business with, or has any contractual arrangement with, Kendara (except with
respect to any interest in less than two percent of the stock of any corporation
whose stock is publicly traded).  To Kendara's knowledge, none of the officers,
directors, employees or stockholders of Kendara, nor any member of their
immediate families, has any indirect ownership interest in any firm or
corporation that competes with, or does business with, or has any contractual
arrangement with, Kendara (except with respect to any interest in less than two
percent of the stock of any corporation whose stock is publicly traded).  None
of said officers, directors, employees or stockholders or any member of their
immediate families, is a party to, or otherwise directly or indirectly
interested in, any contract or informal arrangement with Kendara, except for
normal compensation for services as an officer, director or employee thereof
that have been disclosed to Excite@Home and except for agreements related to the
purchase of the stock of Kendara by such persons. None of said officers,
directors, employees, stockholders or family members has any interest in any
property, real or personal, tangible or intangible (including but not limited to
any Kendara IP Rights or any other Intellectual Property) that is used in, or
that pertains to, the business of Kendara, except for the rights of a
stockholder.

                                      -26-
<PAGE>

     3.16    Employees, ERISA and Other Compliance.
             -------------------------------------

     3.16.1  Kendara is in compliance in all material respects with all
applicable laws, agreements and contracts relating to employment, employment
practices, immigration, wages, hours, and terms and conditions of employment,
including, but not limited to, employee compensation matters, and has correctly
classified employees as exempt employees and non-exempt employees under the Fair
Labor Standards Act, except to the extent that noncompliance or incorrect
classification of employees would not have a Material Adverse Effect on Kendara.
A list of all employees, officers and consultants of Kendara and their current
title and/or job description and compensation is set forth on Item 3.16.1 to
                                                              -----------
Kendara Disclosure Letter. Kendara does not have any employment contracts or
consulting agreements currently in effect that are not terminable at will (other
than agreements with the sole purpose of providing for the confidentiality of
proprietary information or assignment of inventions).

     3.16.2  Kendara (a) is not now, nor has ever been, subject to a union
organizing effort, (b) is not subject to any collective bargaining agreement
with respect to any of its employees, (c) is not subject to any other contract,
written or oral, with any trade or labor union, employees' association or
similar organization or (d) has any current labor disputes.  Kendara has good
labor relations, and has no knowledge of any facts indicating that the
consummation of the Merger or any of the other transactions contemplated hereby
will have a material adverse effect on such labor relations, and has no
knowledge that any of its key employees intends to leave their employ.  All of
the employees of Kendara are legally permitted to be employed by Kendara in the
United States of America in their current job capacities.

     3.16.3  Kendara has no pension plan, which constitutes, or has since the
enactment of the Employee Retirement Income Security Act of 1974, as amended
("ERISA") constituted, a "multiemployer plan" as defined in Section 3(37) of
ERISA.  No pension plan of Kendara is subject to Title IV of ERISA.

     3.16.4  (a)  Item 3.16.4 to the Kendara Disclosure Letter lists each
                  -----------
employment, severance or other similar contract, arrangement or policy, each
"employee benefit plan" as defined in Section 3(3) of ERISA and each plan or
arrangement (written or oral) providing for insurance coverage (including any
self-insured arrangements), workers' benefits, vacation benefits, severance
benefits, disability benefits, death benefits, hospitalization benefits,
retirement benefits, deferred compensation, profit-sharing, bonuses, stock
options, stock purchase, phantom stock, stock appreciation or other forms of
incentive compensation or post-retirement insurance, compensation or benefits
for employees, consultants or directors which is entered into, maintained or
contributed to by Kendara and covers any employee or former employee of Kendara.
Such contracts, plans and arrangements as are described in this Section 3.16.4
are hereinafter collectively referred to as "Kendara Benefit Arrangements."

     (b)     Each Kendara Benefit Arrangement has been maintained in compliance
in all material respects with its terms and with the requirements prescribed by
any and all statutes, orders, rules and regulations that are applicable to such
Kendara Benefit Arrangement, except to the extent that noncompliance would not
have a Material Adverse Effect on Kendara and, unless

                                      -27-
<PAGE>

otherwise indicated in Item 3.16.4 to the Kendara Disclosure Letter, each such
Kendara Benefit Arrangement that is an "employee pension benefit plan" as
defined in Section 3(2) of ERISA which is intended to qualify under Section
401(a) of the Code has received a favorable determination letter that such plan
satisfied the requirements of the Tax Reform Act of 1986 (a copy of which
letter(s) have been delivered to Excite@Home and its counsel).

     (c)     Kendara has delivered to Excite@Home or its counsel a complete and
correct copy and description of each Kendara Benefit Arrangement.

     (d)     Kendara has timely filed and delivered to Excite@Home and its
counsel the most recent annual report (Form 5500) for each Kendara Benefit
Arrangement that is an "employee benefit plan" as defined under ERISA.

     (e)     Kendara has not ever been a participant in any "prohibited
transaction," within the meaning of Section 406 of ERISA with respect to any
employee pension benefit plan (as defined in Section 3(2) of ERISA) which
Kendara sponsors as employer or in which Kendara participates as an employer,
which was not otherwise exempt pursuant to Section 408 of ERISA (including any
individual exemption granted under Section 408(a) of ERISA), or which could
result in an excise tax under the Code.

     (f)     All contributions due from Kendara with respect to any of Kendara
Benefit Arrangements have been made or have been accrued on Kendara's financial
statements (including without limitation the Kendara Financial Statements), and
no further contributions will be due or will have accrued thereunder as of the
Closing Date.

     (g)     All individuals who, pursuant to the terms of any Kendara Benefit
Arrangement, are entitled to participate in any such Kendara Benefit
Arrangement, are currently participating in such Kendara Benefit Arrangement or
have been offered an opportunity to do so and have declined in writing.

     (h)     Kendara will have no liability to any employee or to any
organization or any other entity as a result of the termination of any employee
leasing arrangement in excess of $100,000.

     3.16.5  There has been no amendment to, written interpretation or
announcement (whether or not written) by Kendara relating to, or change in
employee participation or coverage under, any Kendara Benefit Arrangement that
would increase materially the expense of maintaining such Kendara Benefit
Arrangement above the level of the expense incurred in respect thereof during
the calendar year 1999.

     3.16.6  The group health plans (as defined in Section 4980B(g) of the Code)
that benefit employees of Kendara are in compliance, in all material respects,
with the continuation coverage requirements of Section 4980B of the Code as such
requirements affect Kendara and its employees. As of the Closing Date, there
will be no material outstanding, uncorrected violations under the Consolidation
Omnibus Budget Reconciliation Act of 1985, as amended ("COBRA"), with respect to
any of Kendara Benefit Arrangements, covered employees, or qualified

                                      -28-
<PAGE>

beneficiaries that could result in a Material Adverse Effect on Kendara, or in a
Material Adverse Effect on Excite@Home after the Effective Time.

     3.16.7  Unless otherwise indicated in Item 3.16.7 to the Kendara Disclosure
Letter, no benefit payable or which may become payable by Kendara pursuant to
any Kendara Benefit Arrangement or as a result of or arising under this
Agreement or the Certificate of Merger will constitute an "excess parachute
payment" (as defined in Section 280G(b)(1) of the Code) which is subject to the
imposition of an excise Tax under Section 4999 of the Code or which would not be
deductible by reason of Section 280G of the Code.  Unless otherwise indicated in
Item 3.16.7 to the Kendara Disclosure Letter, Kendara is not a party to any:
(a) agreement with any executive officer or other key employee thereof  (i) the
benefits of which are contingent, or the terms of which are materially altered,
upon the occurrence of a transaction involving Kendara in the nature of the
Merger or any of the other transactions contemplated by this Agreement or any
Kendara Ancillary Agreement, (ii) providing any term of employment or
compensation guarantee, or (iii) providing severance benefits or other benefits
after the termination of employment of such employee regardless of the reason
for such termination of employment; or (b) agreement or plan, including, without
limitation, any stock option plan, stock appreciation rights plan or stock
purchase plan, any of the benefits of which will be increased, or the vesting of
benefits of which will be accelerated, by the occurrence of the Merger or any of
the other transactions contemplated by this Agreement or any Kendara Ancillary
Agreement, or the value of any of the benefits of which will be calculated on
the basis of any of the transactions contemplated by this Agreement or any
Kendara Ancillary Agreement.

     3.17    Corporate Documents. Kendara has made available to Excite@Home or
             -------------------
its legal counsel for examination all documents and information listed in the
Kendara Disclosure Letter or in any schedule thereto or in any other exhibit or
schedule called for by this Agreement which have been requested by Excite@Home
or its legal counsel, including the following: (a) copies of Kendara's
Certificate of Incorporation and Bylaws as currently in effect; (b) Kendara's
minute book containing all records of all proceedings, consents, actions, and
meetings of Kendara Stockholders, board of directors and any committees thereof;
(c) Kendara's stock ledger, option ledger, and warrant ledger and journal
reflecting all stock issuances and transfers, and all grants of options and
warrants to purchase Kendara capital stock and other Kendara securities; (d) all
permits, orders, and consents issued by, and filings by Kendara with, any
regulatory agency with respect to Kendara, or any securities of Kendara, and all
applications for such permits, orders, and consents; and (e) all the Kendara
Material Agreements.

     3.18    No Brokers.  Neither Kendara nor any affiliate of Kendara is
             ----------
obligated for the payment of any fees or expenses of any investment banker,
broker, finder or similar party in connection with the origin, negotiation or
execution of this Agreement or in connection with the Merger or any other
transaction contemplated by this Agreement, and Excite@Home will not incur any
liability, either directly or indirectly, to any such investment banker, broker,
finder or similar party as a result of, this Agreement, the Merger or any act or
omission of Kendara, any of its employees, officers, directors, stockholders,
agents or affiliates.

                                      -29-
<PAGE>

     3.19    Books and Records.
             -----------------

     3.19.1  The books, records and accounts of Kendara (a) are in all material
respects true, complete and correct, (b) have been maintained in accordance with
good business practices on a basis consistent with prior years, (c) are stated
in reasonable detail and accurately and fairly reflect the transactions and
dispositions of the assets of Kendara, and (d) accurately and fairly reflect the
basis for the Kendara Financial Statements.

     3.19.2  Kendara has devised and maintains a system of internal accounting
controls sufficient to provide reasonable assurances that:  (a) transactions are
executed in accordance with management's general or specific authorization; (b)
transactions are recorded as necessary (i) to permit preparation of financial
statements in conformity with generally accepted accounting principles or any
other criteria applicable to such statements, and (ii) to maintain
accountability for assets; and (c) the amount recorded for assets on the books
and records of Kendara is compared with the existing assets at reasonable
intervals and appropriate action is taken with respect to any differences.

     3.20    Insurance.  Since its organization, Kendara has maintained, and now
             ---------
maintains, policies of insurance and bonds of the type and in amounts reasonably
and customarily carried by persons conducting businesses or owning assets
similar in type and size to those of Kendara, including without limitation all
legally required workers' compensation insurance and errors and omissions,
casualty, fire and general liability insurance.  There is no material claim
pending under any of such policies or bonds as to which coverage has been
questioned, denied or disputed by the underwriters of such policies or bonds.
All premiums due and payable under all such policies and bonds have been timely
paid and Kendara is otherwise in material compliance with the terms of such
policies and bonds.  Kendara has no knowledge of any threatened termination of,
or material premium increase with respect to, any of such policies.  All
policies of insurance now held by Kendara are set forth in Item 3.20 to Kendara
                                                           ---------
Disclosure Letter, together with the name of the insurer under each policy, the
type of policy, the policy coverage amount and any applicable deductible.

     3.21    Environmental Matters.
             ---------------------

     3.21.1  Kendara is in material compliance with all applicable Environmental
Laws (as defined below), which compliance includes the possession by Kendara of
all permits and other governmental authorizations required under applicable
Environmental Laws, and compliance with the terms and conditions thereof.
Kendara has not received any notice or other communication (in writing or
otherwise), whether from a governmental body, citizens groups, employee or
otherwise, that alleges that Kendara is not in compliance with any Environmental
Law, and there are no circumstances that may prevent or interfere with the
compliance by Kendara with any current Environmental Law in the future.  To
Kendara's knowledge, no current or prior owner of any property leased or
possessed by Kendara has received any notice or other communication (in writing
or otherwise), whether from a government body, citizens group, employee or
otherwise, that alleges that such current or prior owner or Kendara is not in
compliance with any Environmental Law.  All governmental authorizations
currently held by

                                      -30-
<PAGE>

Kendara pursuant to any Environmental Law (if any) are identified in Item 3.21
                                                                     ---------
of Kendara Disclosure Letter.

     3.21.2  For purposes of this Section 3.21: (a) "Environmental Law" means
any federal, state or local statute, law regulation or other legal requirement
relating to pollution or protection of human health or the environment
(including ambient air, surface water, ground water, land surface or subsurface
strata), including any law or regulation relating to emissions, discharges,
releases or threatened releases of Materials of Environmental Concern, or
otherwise relating to the manufacture, processing, distribution, use, treatment,
storage, disposal, transport or handling of Materials of Environmental Concern;
and (b) "Material of Environmental Concern" include chemicals, pollutants,
contaminants, wastes, toxic substances, petroleum and petroleum products and any
other substance that is currently regulated by an Environmental Law or that is
otherwise a danger to health, reproduction or the environment.

     3.22    Board Actions.  The Board of Directors of Kendara (a) has
             -------------
unanimously determined that the Merger is in the best interests of the Kendara
Stockholders and is on terms that are fair to such Kendara Stockholders, and has
recommended the Merger to the Kendara Stockholders, and (b) will submit the
Merger, this Agreement, each of the Kendara Ancillary Agreements and all other
agreements, transactions and actions contemplated hereby and thereby, to the
extent that stockholder approval is required thereof under Applicable Law and
Kendara's Certificate of Incorporation and Bylaws, to the vote and approval of
Kendara Stockholders.

     3.23    No Existing Discussions.  Neither Kendara nor any director,
             -----------------------
officer, stockholder, employee or agent of Kendara is engaged, directly or
indirectly, in any discussions or negotiations with any third party relating to
any Alternative Transaction (as defined in Section 5.7).

     3.24    Disclosure.  Neither this Agreement, its exhibits and schedules and
             ----------
the Kendara Disclosure Letter, nor any Kendara Ancillary Agreements delivered by
Kendara to Excite@Home under this Agreement, taken together, contains any untrue
statement of a material fact or omits to state any material fact necessary in
order to make the statements contained herein and therein, in light of the
circumstances under which such statements were made, not misleading.

                                   ARTICLE 4
             Representations and Warranties of Excite@Home and Sub

     Excite@Home and Sub hereby represent and warrant to Kendara that, except as
set forth in the letter addressed to Kendara from Excite@Home and dated as of
the Agreement Date which has been delivered by Excite@Home to Kendara
concurrently herewith (the "Excite@Home Disclosure Letter"), each of the
following representations, warranties and statements contained in the following
Sections of this Article 4 are true and correct as of the Agreement Date and
will be true and correct on and as of the Closing Date.  For all purposes of
this Agreement, the statements contained in the Excite@Home Disclosure Letter
and its schedules shall also be

                                      -31-
<PAGE>

deemed to be representations and warranties made and given by Excite@Home and
Sub under Article 4 of this Agreement.

     4.1  Organization and Good Standing.  Excite@Home is a corporation duly
          ------------------------------
organized, validly existing and in good standing under the laws of the State of
Delaware, and has the corporate power and authority to own, operate and lease
its properties and to carry on its business as now conducted and as proposed to
be conducted.  Sub is a corporation duly organized, validly existing and in good
standing under the laws of the State of Delaware, and has the corporate power
and authority to own, operate and lease its properties and to carry on its
business.  Excite@Home owns all of the issued and outstanding capital stock of
Sub.  Each of Excite@Home and Sub is duly qualified or licensed to do business
in each jurisdiction in which the property owned, leased or operated by it or
the nature of the business conducted by it makes such qualification or licensing
necessary, except in such jurisdictions where the failure to be so duly
qualified or licensed would not have a Material Adverse Effect on Excite@Home.
Excite@Home has made available to Kendara or its legal counsel, Gunderson
Dettmer Stough Villeneuve Franklin & Hachigian, LLP accurate and complete copies
of the Certificates of Incorporation, Certificates of Designation and Bylaws of
Excite@Home and Sub, as currently in full force and effect.  Neither Excite@Home
nor Sub is in violation of its Certificate of Incorporation, Certificates of
Designation or Bylaws.

     4.2  Power, Authorization and Validity.
          ---------------------------------

          4.2.1  Power and Authority.  Excite@Home has all requisite corporate
                 -------------------
power and authority to enter into, execute, deliver and perform its obligations
under, this Agreement and all the Excite@Home Ancillary Agreements and to
consummate the Merger. The Merger and the execution, delivery and performance of
this Agreement and each of the Excite@Home Ancillary Agreements by Excite@Home
have been duly and validly approved and authorized by Excite@Home's Board of
Directors in compliance with applicable law (including the Delaware General
Corporation Law) and Excite@Home's Certificate of Incorporation and Bylaws.
Neither the Merger nor the execution, delivery and performance of this Agreement
and each of the Excite@Home Ancillary Agreements by Excite@Home requires the
approval of Excite@Home's stockholders. Sub has all requisite corporate power,
capacity and authority to execute, deliver and perform its obligations under,
this Agreement and all the Sub Ancillary Agreements and to consummate the
Merger. The execution, delivery and performance of this Agreement and each of
the Sub Ancillary Agreements by Sub have been duly and validly approved and
authorized by Sub's Board of Directors and its sole stockholder in compliance
with Applicable Law and Sub's Certificate of Incorporation and Bylaws.

          4.2.2  No Consents.  No consent, approval, order or authorization of,
                 -----------
or registration, declaration or filing with, any court, administrative agency,
commission or other Governmental Authority is necessary or required to be made
or obtained by Excite@Home or Sub to enable Excite@Home and Sub to enter into,
and to perform their respective obligations under, this Agreement, the
Excite@Home Ancillary Agreements or the Sub Ancillary Agreements, respectively,
and for Excite@Home and Sub to consummate the Merger, except for: (a) the filing
of the Certificate of Merger with the Delaware Secretary of State as required
under

                                      -32-
<PAGE>

Delaware Law, (b) the filing by Excite@Home with the Securities and Exchange
Commission ("SEC") or any state securities law authorities of any notices or
filings required in connection with the exemptions from the registration or
qualification requirements of the Securities Act and/or applicable state
securities laws which Excite@Home relies on in issuing shares of Excite@Home
Common Stock and Excite@Home Preferred Stock pursuant to this Agreement; (c) the
filing by Excite@Home of such reports and information with the SEC under the
Exchange Act and the rules and regulations promulgated by the SEC thereunder, as
may be required in connection with this Agreement, the Merger and the other
transactions contemplated by this Agreement; (d) the filing by Excite@Home with
the SEC of the Form S-3 registration statement to be filed by Excite@Home
pursuant to this Agreement; (e) the filing by Excite@Home with the SEC of the
Form S-8 registration statement to be filed by Excite@Home pursuant to this
Agreement; (f) the filing by Excite@Home with the Delaware Secretary of State of
the Certificates of Designation to be filed by Excite@Home pursuant to this
Agreement; (g) such other filings as may be required by the Nasdaq Stock Market
with respect to the Merger and the other transactions contemplated by this
Agreement, and the issuance of the shares of Excite@Home Common Stock and the
assumption of Kendara Options and Kendara Warrants by Excite@Home in the Merger;
and (h) such other filings, if any, as may be required in order for Excite@Home
to comply with applicable federal and state securities laws.

          4.2.3  Enforceability.  This Agreement and the Excite@Home Ancillary
                 --------------
Agreements are, or when executed by Excite@Home will be, valid and binding
obligations of Excite@Home, enforceable against Excite@Home in accordance with
their respective terms, subject to the effect of (a) applicable bankruptcy and
other similar laws affecting the rights of creditors generally and (b) rules of
law and equity governing specific performance, injunctive relief and other
equitable remedies.  This Agreement and the Sub Ancillary Agreements are, or
when executed by Sub will be, valid and binding obligations of Sub, enforceable
against Sub in accordance with their respective terms, subject to the effect of
(a) applicable bankruptcy and other similar laws affecting the rights of
creditors generally and (b) rules of law and equity governing specific
performance, injunctive relief and other equitable remedies.

     4.3  Excite@Home and Sub Capital Structure.
          -------------------------------------

          (a)    The authorized capital stock of Excite@Home consists of
719,719,414 shares of common stock, par value $0.01 per share, of which
683,700,000 shares have been designated Series A Common Stock (or Excite@Home
Common Stock), 30,800,000 shares have been designated Series B Common Stock and
5,219,414 shares have been designated Series K Common Stock, of which there were
351,954,355 shares of Series A Common Stock, 30,800,000 shares of Series B
Common Stock and 2,000,000 shares of Series K Common Stock issued and
outstanding as of December 31, 1999; and 9,650,000 shares of Preferred Stock,
par value $0.01 per share, of which 10,143.549 shares are issued or outstanding
as of December 31, 1999. At the Effective Time, Excite@Home shall have
designated a sufficient number of shares of Series B Preferred Stock and Series
C Preferred Stock to fulfill Excite@Home's obligations to issue shares of such
stock pursuant to the terms of this Agreement. All outstanding shares of
Excite@Home Common Stock are duly authorized, validly issued, fully paid and
nonassessable. As of December 31, 1999: (i) there were options outstanding to
purchase an aggregate of

                                      -33-
<PAGE>

59,330,438 shares of Excite@Home Common Stock pursuant to Excite@Home's stock
option plans; and (ii) 1,422,310 shares of Excite@Home Common Stock reserved for
future issuance under Excite@Home's 1997 Employee Stock Purchase Plan. All
shares of Excite@Home Common Stock subject to issuance as aforesaid, upon
issuance on the terms and conditions specified in the instruments pursuant to
which they are issuable, would be duly authorized, validly issued, fully paid
and nonassessable.

          (b)  The authorized capital stock of Sub consists of 1,000 shares of
common stock, $0.001 par value per share, 100 of which, as of the date hereof,
are issued and outstanding and are held by Excite@Home. All of the outstanding
shares of Sub's common stock have been duly authorized and validly issued, and
are fully paid and nonassessable. Sub was formed for the purpose of consummating
the Merger and has no material assets or liabilities except as necessary for
such purpose.

          (c)  The Excite@Home Common Stock and Excite@Home Preferred Stock to
be issued in the Merger, and the Excite@Home Common Stock to be issued upon the
conversion of the Excite@Home Preferred Stock, when issued in accordance with
the provisions of this Agreement and the Certificates of Designation, will be
validly issued, fully paid and nonassessable and will be issued in compliance
with all applicable federal and state securities laws.

     4.4  No Conflict.  Neither the execution and delivery of this Agreement nor
          -----------
any of the Excite@Home Ancillary Agreements or Sub Ancillary Agreements by
Excite@Home or Sub, nor the consummation of the Merger or any of the other
transactions contemplated hereby or thereby, will conflict with, or (with or
without notice or lapse of time, or both) result in a termination, breach,
impairment or violation of or constitute a default under: (a) any provision of
the Certificate of Incorporation, the Certificates of Designation or Bylaws of
Excite@Home or Sub as currently in effect; (b) any federal, state, local or
foreign judgment, writ, decree, order, statute, rule or regulation applicable to
Excite@Home or Sub or any of their respective material assets or properties; or
(c) any note, bond, mortgage, indenture, lease, license, permit, franchise,
material instrument, agreement, or contract, undertaking, understanding, letter
of intent, memorandum of understanding or commitment (whether verbal or in
writing) to which Excite@Home or any of its subsidiaries is a party or by which
Excite@Home or any of its subsidiaries or any of their respective material
assets or properties are bound, except in the case of (b) and (c) for any such
conflicts, terminations, breaches, impairments, violations or defaults which
would not have a Material Adverse Effect on Excite@Home or a material adverse
effect on Excite@Home's or Sub's ability to consummate the Merger.

     4.5  SEC Filings.
          -----------

          (a)  Excite@Home has filed all forms, reports and documents required
to be filed by Excite@Home with the SEC since January 1, 1999, and has made
available to Company such forms, reports and documents in the form filed with
the SEC. All such required forms, reports and documents (including those that
Excite@Home may file subsequent to the date hereof) are referred to herein as
the "Excite@Home SEC Reports." As of their respective dates,

                                      -34-
<PAGE>

the Excite@Home SEC Reports (i) were prepared in accordance with the
requirements of the Securities Act or the Exchange Act, as the case may be, and
the rules and regulations of the SEC thereunder applicable to such Excite@Home
SEC Reports, and (ii) did not at the time they were filed (or if amended or
superseded by a filing, then on the date of such filing) contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary in order to make the statements therein, in the
light of the circumstances under which they were made, not misleading, except to
the extent corrected by a subsequently filed Excite@Home SEC Report.

          (b)  Each of the audited consolidated financial statements (including,
in each case, any related notes thereto) contained in the Excite@Home SEC
Reports (the "Excite@Home Financials"), including any Excite@Home SEC Reports
filed after the date hereof until the Closing Date, (i) complied as to form in
all material respects with the published rules and regulations of the SEC with
respect thereto, (ii) was prepared in accordance with GAAP applied on a
consistent basis throughout the periods involved (except as may be indicated in
the notes thereto or, in the case of unaudited interim financial statements, as
may be permitted by the SEC on Form 1O-Q, 8-K or any successor form under the
Exchange Act) and (iii) fairly presented in all material respects the
consolidated financial position of Excite@Home and its subsidiaries as at the
respective dates thereof and the consolidated results of Excite@Home's
operations and cash flows for the periods indicated, except that the unaudited
interim financial statements may not contain footnotes and were or are subject
to normal and recurring year-end adjustments. The audited balance sheet of
Excite@Home contained in Excite@Home SEC Reports as of September 30, 1999 is
hereinafter referred to as the "Excite@Home Balance Sheet." Except as disclosed
in the Excite@Home Financials, since September 30, 1999 neither Excite@Home nor
any of its subsidiaries has any liabilities required under GAAP to be set forth
on a balance sheet (absolute, accrued, contingent or otherwise) which are,
individually or in the aggregate, material to the business, results of
operations or financial condition of Excite@Home and its subsidiaries taken as a
whole, except for liabilities incurred since the date of the Excite@Home Balance
Sheet in the ordinary course of business consistent with past practices and
liabilities incurred in connection with this Agreement.

     4.6  Disclosure.  Excite@Home has made available to Kendara an
          ----------
investor disclosure package consisting of Excite@Home's annual report on Form
10-K for its fiscal year ending December 31, 1998 (the "Fiscal Year End"), all
Forms 10-Q and 8-K filed by Excite@Home with the SEC since the Fiscal Year End
and up to the date of this Agreement and all proxy materials distributed to
Excite@Home's stockholders since the Fiscal Year End and up to the date of this
Agreement (the "Excite@Home Disclosure Package").

     4.7  Absence of Certain Changes.  Except as set forth in the Excite@Home
          --------------------------
SEC Documents, since the Excite@Home Balance Sheet Date, Excite@Home has
conducted its business in the ordinary course consistent with past practice and
there has not occurred: (a) any change, event or condition (whether or not
covered by insurance) that has resulted in a Material Adverse Effect on
Excite@Home; (b) any change in accounting methods or practices (including any
change in depreciation or amortization policies or rates) by Excite@Home or any
revaluation by Excite@Home of any of its assets; (c) any declaration, setting
aside, or payment of a dividend or

                                      -35-
<PAGE>

other distribution with respect to the shares of Excite@Home, or any direct or
indirect redemption, purchase or other acquisition by Excite@Home of any of its
shares of capital stock; or (d) any negotiation or agreement by Excite@Home or
any of its subsidiaries to do any of the things described in the preceding
clauses (a) through (d) (other than negotiations with Kendara and its
representatives regarding the transactions contemplated by this Agreement).

     4.8  Litigation.  There is no action, suit, arbitration, proceeding or
          ----------
investigation pending against Excite@Home before any court, Governmental
Authority or arbitrator, nor, to Excite@Home's knowledge, has any such action,
suit, arbitration, proceeding or investigation been threatened that,
individually or in the aggregate, would have a Material Adverse Effect on
Excite@Home.  As of the date hereof, there is no judgment, decree or order
against Excite@Home or any of its subsidiaries or, to the knowledge of
Excite@Home, any of their respective directors or officers (in their capacities
as such), that could prevent, enjoin, alter or materially delay any of the
transactions contemplated by this Agreement or that could have a Material
Adverse Effect on Excite@Home.

     4.9  Delivery of Documents. Excite@Home has delivered true and complete
          ---------------------
copies of all documents requested by Kendara and which are referred to in this
Article 4 or in any Schedule delivered by Excite@Home to Kendara.

                                   ARTICLE 5
                       Pre Closing Covenants of Kendara

     During the time period from the Agreement Date until the earlier to occur
of (a) the Effective Time or (b) the termination of this Agreement in accordance
with the provisions of Article 10, Kendara covenants and agrees with Excite@Home
as follows:

     5.1  Advice of Changes.  Kendara will promptly advise Excite@Home in
          -----------------
writing of any (a) event occurring subsequent to the Agreement Date that would
render any representation or warranty of Kendara contained in Article 3 of this
Agreement, if made on or as of the date of such event or the Closing Date,
untrue or inaccurate and (b) Material Adverse Change in Kendara.

     5.2  Maintenance of Business.  Kendara will carry on and preserve its
          -----------------------
business and its relationships with customers, advertisers, suppliers, employees
and others with whom Kendara has contractual relations in substantially the same
manner as it has prior to the Agreement Date consistent with past practices. If
Kendara becomes aware of a material deterioration in the relationship with any
key customer, key advertiser, key supplier or key employee, it will promptly
bring such information to the attention of Excite@Home in writing and, if
requested by Excite@Home, will exert reasonable commercial efforts to promptly
restore the relationship.

     5.3  Conduct of Business.  Kendara will continue to conduct its business
          -------------------
and maintain its business relationships in the ordinary and usual course and
Kendara will not, without the prior written consent of Excite@Home:

                                      -36-
<PAGE>

          (a)  incur any indebtedness for borrowed money or guarantee any such
indebtedness of another person other than in the ordinary course of business
consistent with past practice;

          (b)  lend any money, other than reasonable and normal advances to
employees for bona fide expenses that are incurred in the ordinary course of
Kendara's business consistent with Kendara's past practices;

          (c)  enter into any material transaction or agreement or take any
other action not in the ordinary course of Kendara's business consistent with
Kendara's past practices;

          (d)  grant any Encumbrance on any of its assets;

          (e)  sell, transfer or dispose of any of its assets except in the
ordinary course of Kendara's business consistent with Kendara's past practices;

          (f)  enter into any material lease or contract for the purchase or
sale of any property, whether real or personal, tangible or intangible; pay any
bonus, increased salary or special remuneration to any officer, director,
employee or consultant (except for normal salary increases consistent with
Kendara's past practices and not to exceed 5% of such officer's, employee's or
consultant's base annual compensation, and except pursuant to arrangements
disclosed in writing to Excite@Home prior to the Agreement Date or disclosed in
writing subsequent to the Agreement Date and approved in writing by Excite@Home)
or enter into any new employment or consulting agreement with any such person;

          (h)  change any of its accounting methods;

          (i)  declare, set aside or pay any cash or stock dividend or other
distribution in respect of its capital stock, redeem, repurchase or otherwise
acquire any of its capital stock or other securities (except for the repurchase
of stock from employees, directors, consultants or contractors of Kendara in
connection with the termination of their services with Kendara at the original
purchase price of such stock), pay or distribute any cash or property to any
stockholder or security holder of Kendara or make any other cash payment to any
stockholder or security holder of Kendara that is unusual, extraordinary, or not
made in the ordinary course of Kendara's business consistent with its past
practices;

          (j)  amend or terminate any contract, agreement or license to which
Kendara is a party except those amended or terminated in the ordinary course of
Kendara's business, consistent with its past practices, and which are not
material in amount or effect;

          (k)  waive or release any material right or claim except in the
ordinary course of Kendara's business consistent with its past practices;

                                      -37-
<PAGE>

          (l)  issue, sell, create or authorize any shares of its capital stock
of any class or series or any other of its securities (other than pursuant to
the exercise of any Kendara Options or Kendara Warrants), or issue, grant or
create any warrants, obligations, subscriptions, options (other than the grant
of options to employees to purchase Kendara Common Stock, provided that the
vesting of such options does not accelerate in connection with the Merger or any
of the other transactions contemplated hereby, such options vest over a four-
year period, with not more than twenty-five percent in the first year and 21/12%
each full calendar month thereafter, the exercise price of such option is not
less than the fair market value of Kendara Common Stock on the date of grant,
and the number of shares subject to such option is consistent with the past
practice of Kendara; or the grant of the Permitted Non-Dilutive Options),
convertible securities, or other commitments to issue shares of its capital
stock or any securities that are potentially exchangeable for, or convertible
into, shares of its capital stock;

          (m)  subdivide or split or combine or reverse split the outstanding
shares of its capital stock of any class or series or enter into any
recapitalization affecting the number of outstanding shares of its capital stock
of any class or series or affecting any other of its securities;

          (n)  merge, consolidate or reorganize with, or acquire, or enter into
any other business combination with, any corporation, partnership, limited
liability company or any other entity (other than Excite@Home or Sub) or enter
into any negotiations, discussions or agreement for such purpose;

          (o)  amend its Certificate of Incorporation or Bylaws;

          (p)  license any of its technology or Intellectual Property, or
acquire any Intellectual Property (or any license thereto) from any third party;
materially change any insurance coverage;

          (r)  agree to any audit assessment by any tax authority or file any
federal or state income or franchise tax return unless copies of such returns
have first been delivered to Excite@Home for its review at a reasonable time
prior to filing;

          (s)  other than as contemplated in Sections 5.11 and 5.12, modify or
change the exercise or conversion rights or exercise or purchase prices of any
capital stock of Kendara, any Kendara stock options, warrants or other Kendara
securities, or accelerate or otherwise modify (i) the right to exercise any
option, warrant or other right to purchase any capital stock or other securities
of Kendara or (ii) the vesting or release of any shares of capital stock or
other securities of Kendara from any repurchase options or rights of refusal
held by Kendara or any other party or any other restrictions; or

          (t)  agree to do any of the things described in the preceding clauses
5.3(a) through 5.3(s).

     5.4  Regulatory Approvals.  Kendara will promptly execute and file, or
          --------------------
join in the execution and filing, of any application, notification or any other
document that may be

                                      -38-
<PAGE>

necessary in order to obtain the authorization, approval or consent of any
Governmental Authority, whether federal, state, local or foreign, which may be
reasonably required, or which Excite@Home may reasonably request, in connection
with the consummation of the Merger or any other transactions contemplated by
this Agreement or any Kendara Ancillary Agreement. Kendara will use diligent
efforts to obtain, and to cooperate with Excite@Home to promptly obtain, all
such authorizations, approvals and consents.

     5.5  Necessary Consents.  Kendara will use diligent efforts to promptly
          ------------------
obtain such written consents and authorizations of third parties, give notices
to third parties and take such other actions as may be necessary or appropriate
in order to effect the consummation of the Merger and the other transactions
contemplated by this Agreement, to enable Excite@Home to carry on Kendara's
business immediately after the Effective Time and to keep in effect and avoid
the breach, violation of, termination of, or adverse change to, any agreement or
contract to which Kendara is a party or is bound or by which any of its assets
is bound.

     5.6  Litigation.  Kendara will notify Excite@Home in writing promptly after
          ----------
learning of any claim, action, suit, arbitration, mediation, proceeding or
investigation by or before any court, arbitrator or arbitration panel, board or
governmental agency, initiated by or against it, or known by it to be threatened
against Kendara or any of its officers, directors, employees or stockholders in
their capacity as such.

     5.7  No Other Negotiations.  Kendara will not, and Kendara will not
          ---------------------
authorize, encourage or permit any officer, director, employee, stockholder,
affiliate or agent of Kendara or any attorney, investment banker or other person
on Kendara's or their behalf to, directly or indirectly: (i) solicit, initiate,
encourage or induce the making, submission or announcement of, any offer or
proposal from any party concerning any Alternative Transaction (as defined
below) or take any other action that could reasonably be expected to lead to an
Alternative Transaction or a proposal therefor; (ii) consider any inquiry, offer
or proposal received from any party concerning any Alternative Transaction
(other than to respond to such inquiry, offer or proposal by indicating that
Kendara is not interested in any Alternative Transaction); (iii) furnish any
information regarding Kendara to any person or entity in connection with or in
response to any inquiry, offer or proposal for or regarding any Alternative
Transaction (other than to respond to such inquiry, offer or proposal by
indicating that Kendara is not interested in any Alternative Transaction); (iv)
participate in any discussions or negotiations with any person or entity with
respect to any Alternative Transaction (other than to respond to such inquiry,
offer or proposal by indicating that Kendara is not interested in any
Alternative Transaction); (v) otherwise cooperate with, facilitate or encourage
any effort or attempt by any person or entity (other than Excite@Home) to effect
any Alternative Transaction; or (vi) execute, enter into or become bound by any
letter of intent, agreement, commitment or understanding between Kendara and any
third party that is related to, provides for or concerns any Alternative
Transaction. Kendara will promptly notify Excite@Home orally and in writing of
any inquiries or proposals received by Kendara, directors, officers,
stockholders, employees or agents regarding any Alternative Transaction and
will, identify the party making the inquiry or proposal and the nature and terms
of any inquiry or proposal. Any violation of the restrictions set forth in this
Section by any officer, director or employee of Kendara or any attorney,
investment banker or other director or

                                      -39-
<PAGE>

representative of Kendara shall be deemed a breach of this Section 5.7 by
Kendara. As used herein, the term "Alternative Transaction" means any
commitment, agreement or transaction involving or providing for (a) the possible
disposition of all or any substantial portion of Kendara's business, assets or
capital stock, whether by way of merger, consolidation, sale of assets, sale of
stock, stock exchange, tender offer and/or any other form of business
combination, or (b) any initial public offering of capital stock or other
securities of Kendara pursuant to a registration statement filed under the
Securities.

     5.8   Access to Information.  Kendara will allow Excite@Home and its agents
           ---------------------
access at reasonable time to the files, books, records, technology, contracts,
personnel and offices of Kendara, including, without limitation, any and all
information relating to Kendara's taxes, commitments, contracts, leases,
licenses, financial condition and real, personal and intangible property,
subject to the terms of the agreement between Kendara and Excite@Home dated as
of November 30, 1999 (the "Confidentiality Agreement").  Kendara will cause its
accountants to cooperate with Excite@Home and Excite@Home's agents (provided
that, prior to any disclosure to such agents, such agents are bound by the terms
of a confidentiality agreement with substantially similar restriction as
included in the Confidentiality Agreement to restrict the use and disclosure of
Kendara's confidential information) in making available all financial
information reasonably requested by Excite@Home, including without limitation
the right to examine all working papers pertaining to all financial statements
prepared or audited by such accountants.

     5.9   Satisfaction of Conditions Precedent.  Kendara will use its diligent
           ------------------------------------
efforts to satisfy or cause to be satisfied all the conditions precedent which
are set forth in Article 9, and Kendara will use its diligent efforts to cause
the Merger and the other transactions contemplated by this Agreement to be
consummated in accordance with this Agreement.

     5.10  Kendara Employee Plans and Benefit Arrangements.  Upon the request of
           -----------------------------------------------
Excite@Home, Kendara will terminate any Kendara Benefit Plan and any leased
employee arrangement or professional employee organization immediately prior to
the Effective Time.

     5.11  Amendments of Kendara Options. Kendara shall amend and obtain the
           -----------------------------
written consent of each holder of Kendara Options listed on Schedule 5.11 hereto
                                                            -------------
to amend outstanding Kendara Options granted to each such holder to eliminate
acceleration of vesting under such Kendara Option (including upon termination of
the option holder at any time following the Effective Time) conditioned on the
occurrence of, and effective immediately prior to, the Effective Time.

     5.13  Right of First Refusal and Registration Rights.  Kendara shall amend
           ----------------------------------------------
Kendara's Bylaws to repeal Article IX of such Bylaws relating to Kendara's and
the Kendara Stockholders' right of first refusal.  Kendara and the holders of
Kendara Preferred Stock shall amend the Investors' Rights Agreement dated as of
May 26, 1999 between Kendara and such holders to terminate the registration
rights of such holders.

     5.14  Information Statement.  Kendara will deliver to counsel to
           ---------------------
Excite@Home a draft of an information statement on the Agreement Date and,
within two business days following the

                                      -40-
<PAGE>

Agreement Date, will send to the Kendara Stockholders such information statement
for the purpose of considering and approving the Merger Agreement, the Merger
and the transactions contemplated hereby.

     5.15  Kendara Stockholder Approval.  Kendara shall obtain the valid and
           ----------------------------
affirmative vote of at least 90% of the outstanding shares of Kendara Common
Stock and Kendara Preferred Stock within two business days of the Agreement
Date.

     5.16  Tax Representation Letter.  Kendara shall make such reasonable
           -------------------------
representations as are requested by its counsel and Excite@Home's counsel for
the purpose of their rendering the tax opinions discussed in Section 8.8 and
Section 9.7.

                                   ARTICLE 6
                             Excite@Home Covenants

     During the time period from the Agreement Date until the earlier to occur
of (a) the Effective Time or (b) the termination of this Agreement in accordance
with Article 10, Excite@Home covenants and agrees as follows:

     6.1   Advice of Changes.  Excite@Home will promptly advise Kendara in
           -----------------
writing of any (a) event that would render any representation or warranty of
Excite@Home or Sub contained in this Agreement or the Excite@Home Disclosure
Letter, if made on or as of the date of such event or the Closing Date, to be
untrue or inaccurate, (b) any breach of any covenant or obligation of
Excite@Home or Sub pursuant to this Agreement, any Excite@Home Ancillary
Agreement or any Sub Ancillary Agreement, and (c) Material Adverse Change in
Excite@Home.

     6.2  Regulatory Approvals.  Excite@Home will execute and file, or join in
          --------------------
the execution and filing, of any application, notification or other document
that may be necessary in order to obtain the authorization, approval or consent
of any governmental body, federal, state, local or foreign, which may be
reasonably required, in connection with the consummation of the Merger and the
other transactions contemplated by this Agreement and the Excite@Home Ancillary
Agreements and Sub Ancillary Agreements in accordance with the terms of this
Agreement. Excite@Home will use diligent efforts to obtain all such
authorizations, approvals and consents. Notwithstanding anything in this
Agreement to the contrary, neither Excite@Home nor any of its affiliates shall
be under any obligation to make proposals, execute or carry out agreements or
submit to orders providing for the sale or other disposition or holding separate
(through the establishment of a trust or otherwise) of any assets or categories
of assets of Excite@Home, or any of its affiliates or Kendara, or the holding
separate of the shares of Kendara Common Stock or imposing or seeking to impose
any limitation on the ability of Excite@Home or any of its subsidiaries or
affiliates to conduct their business or own such assets or to acquire, hold or
exercise full rights of ownership of the shares of Kendara Common Stock.

     6.3  Satisfaction of Conditions Precedent.  Excite@Home will use its
          ------------------------------------
diligent efforts to satisfy or cause to be satisfied all of the conditions
precedent which are set forth in Article 8,

                                      -41-
<PAGE>

and Excite@Home will use its diligent efforts to cause the transactions
contemplated by this Agreement to be consummated in accordance with the terms of
this Agreement.

     6.4  Listing of Additional Shares.  Excite@Home will use its diligent
          ----------------------------
efforts to cause the shares of (a) Excite@Home Common Stock to be issued in the
Merger upon conversion of Kendara Common Stock, and (b) when issued, the shares
of Excite@Home Common Stock issued upon conversion of the Excite@Home Preferred
Stock to be issued in the Merger upon conversion of Kendara Common Stock, to be
approved for listing on the Nasdaq Stock Market, subject to notice of issuance.

     6.5  Blue Sky Laws.  Excite@Home shall take such steps as may be necessary
          -------------
to comply with the securities and Blue Sky laws of all jurisdictions which are
applicable in connection with the Merger; provided, however, that Excite@Home
shall not be required to qualify to do business or execute a general consent to
service of process in any jurisdiction.

     6.6  Tax Free Reorganization.  Excite@Home will cooperate with Kendara and
          -----------------------
take all reasonable actions as may be necessary to ensure that this Agreement
involves a tax-free plan of reorganization and that the Merger is consummated in
accordance with the provisions of Section 368(a)(1)(A) and Section 368(a)(2)(D)
of the Code.

     6.7  Indemnification.
          ---------------

          (a)  From and after the Effective Time, the Surviving Corporation
shall indemnify, defend and hold harmless each person who is now, or has been at
any time prior to the date of this Agreement or who becomes prior to Effective
Time, an officer, director or employee of Kendara (the "Indemnified Parties") in
respect of acts or omissions occurring on or prior to the Effective Time to the
extent provided under the Kendara's Certificate of Incorporation, Bylaws and
indemnification agreements in effect on the date hereof, provided that such
indemnification shall be subject to any limitation imposed from time to time
under applicable law.

          (b)  If the Surviving Corporation or any of its respective successors
or assigns (i) consolidates with or mergers into any other person or entity and
shall not be the continuing or surviving person of such consolidation or merger,
or (ii) transfers all or substantially all of its properties and assets to any
person or entity, then and in each such case, proper provision shall be made so
that such successors or assigns of the Surviving Corporation shall assume the
obligations set forth in this Section 6.7.

     6.8  Employee Benefit Plans.  Excite@Home will provide benefits to
          ----------------------
employees of Kendara as soon as reasonably practicable following the Effective
Time that are substantially identical in the aggregate to the benefits currently
provided to similarly situated employees of Excite@Home. From and after the
Effective Time, Excite@Home shall grant all employees of Kendara credit for all
service (to the same extent as service with Excite@Home is taken into account
with respect to similarly situated employees of Excite@Home) with Kendara prior
to the Effective Time for (a) eligibility and vesting purposes and (b) for
purposes of vacation accrual after the Effective Time as if such service with
Kendara was service with Excite@Home.

                                      -42-
<PAGE>

     6.9   Filing of Certificates of Designation.  Promptly following the
           -------------------------------------
fulfillment, satisfaction or waiver by Excite@Home of each of the conditions
specified in Article 9 (other than the condition specified in Section 9.13),
Excite@Home will use its diligent efforts to file the Certificates of
Designation with the Secretary of State of the State of Delaware.

     6.10  Tax Representation Letter.  Excite@Home shall make such reasonable
           -------------------------
representations as are requested by its counsel and Kendara's counsel for the
purpose of their rendering the tax opinions discussed in Section 8.8 and Section
9.7.

                                   ARTICLE 7
                                Closing Matters

     7.1   The Closing.  Subject to termination of this Agreement as provided in
           -----------
Article 10 below, the closing of the transactions to consummate the Merger (the
"Closing") will take place at the offices of Fenwick & West LLP, 275 Battery
Street, San Francisco, California at 10:00 a.m., Pacific Time on the second
business day after all of the conditions to Closing set forth in Sections 8 and
9 hereof have been satisfied and/or waived in accordance with this Agreement, or
on such other day as Excite@Home and Kendara may mutually agree upon (the
"Closing Date").  Concurrently with the Closing, the Certificate of Merger will
be filed with the Delaware Secretary of State.

     7.2   Exchange of Certificates.
           ------------------------

           7.2.1  At the Effective Time, shares of Kendara Common Stock that are
outstanding immediately prior thereto (other than Dissenting Shares for which
dissenters rights have been or will be perfected in accordance with Delaware
law), will, by virtue of the Merger and without further action, cease to exist,
and all such shares will be converted into the right to receive from Excite@Home
the number of shares of Excite@Home Common Stock and Excite@Home Preferred Stock
to which such holder is entitled pursuant to Section 2.1.2, subject to the
provisions of Section 2.1.4 (regarding the elimination of fractional shares of
Excite@Home Common Stock) and Section 2.5 (regarding the withholding of Escrow
Shares).  As soon as reasonably practicable (and in any event no later than
eight business days after the Effective Time), Excite@Home shall make available
to EquiServe Limited Partnership (the "Exchange Agent") certificates
representing Excite@Home Common Stock and Excite@Home Preferred Stock to be
issued in exchange for outstanding shares of Kendara Common Stock and cash in an
amount sufficient to permit the payment of cash in lieu of fractional shares
pursuant to Section 2.1.4.  As soon as practicable after the Effective Time (and
in any event no later than ten (10) Business Days after the Effective Time), the
Surviving Corporation shall cause to be mailed to each holder of record of a
certificate or certificates which immediately prior to the Effective Time
represented outstanding shares of Kendara Common Stock (the "Kendara
Certificates") and which shares were converted into the right to receive shares
of Common Stock and Excite@Home Preferred Stock pursuant to Section 2.1.2, (a) a
                                                            -------------
letter of transmittal in customary form (which shall specify that delivery shall
be effected, and risk of loss and title to the Kendara Certificates shall pass,
only upon delivery of the Kendara Certificates to the Exchange Agent and shall
be in such form and have such other provisions as Excite@Home may reasonably
specify)

                                      -43-
<PAGE>

and (b) instructions for use in effecting the surrender of the Kendara
Certificates in exchange for certificates representing shares of Excite@Home
Common Stock and Excite@Home Preferred Stock and cash in lieu of fractional
shares. Upon surrender of a Kendara Certificate for cancellation or upon
delivery of an affidavit of lost certificate and an indemnity in form and
substance satisfactory to Excite@Home (the "Affidavit") to the Exchange Agent or
to such other agent or agents as may be appointed by Excite@Home, together with
such letter of transmittal, duly completed and validly executed in accordance
with the instructions thereto, (a) Excite@Home or its transfer agent will issue
to each tendering holder of a Kendara Certificate or an Affidavit, certificates
(a "Tendering Kendara Holder") for the number of shares of Excite@Home Common
Stock and Excite@Home Preferred Stock to which such holder is entitled pursuant
to Section 2.1.2, subject to the provisions of Section 2.1.4 (regarding the
elimination of fractional shares of Excite@Home Common Stock) and Section 2.5
(regarding the withholding of Escrow Shares); and (b) Excite@Home or its
transfer agent will pay by check to each Tendering Kendara Holder cash in the
amounts payable to such holder in accordance with the provisions of Sections
2.1.4.

          7.2.2  No dividends or distributions payable to holders of record of
Excite@Home Common Stock or Excite@Home Preferred Stock after the Effective Time
will be paid to the holder of any unsurrendered Kendara Certificate unless and
until the holder of such unsurrendered Kendara Certificate surrenders such
Kendara Certificate or an Affidavit to Excite@Home as provided above. Subject to
the effect, if any, of applicable escheat and other laws, following surrender of
any Kendara Certificate or Affidavit, there will be delivered to the person
entitled thereto, without interest, the amount of any dividends and
distributions theretofore paid with respect to Excite@Home Common Stock and
Excite@Home Preferred Stock so withheld as of any date subsequent to the
Effective Time and prior to such date of delivery.

          7.2.3  After the Effective Time there will be no further registration
of transfers on the stock transfer books of Kendara or its transfer agent of any
shares of capital stock of Kendara that were outstanding immediately prior to
the Effective Time. If, after the Effective Time, Kendara Certificates or an
Affidavit are presented for any reason, they will be canceled and exchanged as
provided in this Section 7.2.

          7.2.4  Until Kendara Certificates or an Affidavit representing shares
of Kendara Common Stock that are outstanding immediately prior to the Effective
Time are surrendered pursuant to Section 7.2.1 above, such Kendara Certificates
will be deemed, for all purposes, to evidence ownership of the number of shares
of Excite@Home Common Stock and Excite@Home Preferred Stock into which such
shares of Kendara Common Stock will have been converted pursuant to Section
2.1.2, subject to the provisions of Section 2.1.4 (regarding the elimination of
fractional shares of Excite@Home Common Stock) and Section 2.5 (regarding the
withholding of Escrow Shares).

     7.3  Appraisal Rights.  If holders of Kendara Common Stock are entitled to
          ----------------
appraisal rights pursuant to the Delaware General Corporation Law (the "DGCL")
in connection with the Merger, any shares held by Kendara Stockholders who
exercise and perfect such appraisal rights

                                      -44-
<PAGE>

("Dissenting Shares") shall not be converted into a right to receive Excite@Home
Common Stock or Excite@Home Preferred Stock, but shall be converted into the
right to receive such consideration as may be determined to be due with respect
to such Dissenting Shares pursuant to the DGCL. Kendara shall give Excite@Home
prompt notice (and in no event more than two business days) of any demand
received by Kendara for appraisal of Kendara Common Stock, and Excite@Home shall
have the right to control all negotiations and proceedings with respect to such
demand. Kendara agrees that, except with the prior written consent of
Excite@Home, it will not voluntarily make any payment with respect to, or settle
or offer to settle, any such demand for appraisal. In the event that any Kendara
Stockholder fails to make an effective demand for payment or otherwise loses his
status as a holder of Dissenting Shares (a "Dissenting Stockholder"),
Excite@Home shall, as of the later of the Effective Time of the Merger or ten
business days from the occurrence of such event, issue and deliver, upon
surrender by such Dissenting Stockholder of its Kendara Certificate or
Certificates, the shares of Excite@Home Common Stock and Excite@Home Preferred
Stock and any cash payment in lieu of fractional shares, in each case without
interest thereon, to which such Dissenting Shareholder would have been entitled
to under Section 2.1.2 of this Agreement (less the number of shares of
Excite@Home Common Stock and Excite@Home Preferred Stock to be held in escrow
with respect to such stockholder pursuant to Section 2.5).

                                   ARTICLE 8
                     Conditions to Obligations of Kendara

     Kendara's obligations hereunder are subject to the fulfillment or
satisfaction, on and as of the Closing, of each of the following conditions (any
one or more of which may be waived by Kendara, but only in a writing signed by
Kendara):

     8.1  Accuracy of Representations and Warranties.  The representations and
          ------------------------------------------
warranties of Excite@Home and Sub set forth in Article 4 (a) that are qualified
as to materiality will be true and correct and (b) that are not qualified as to
materiality shall be true and correct in all material respects, in each case on
and as of the Closing with the same force and effect as if they had been made on
the Closing Date (except for any such representations or warranties that, by
their terms, speak only as of a specific date or dates, in which case such
representations and warranties that are qualified as to materiality shall be
true and correct, and such representations and warranties that are not qualified
as to materiality shall be true and correct in all material respects, on and as
of such specified date or dates), and at the Closing Kendara will have received
a certificate to such effect executed by an officer of Excite@Home.

     8.2  Covenants.  Excite@Home will have performed and complied in all
          ---------
material respects with all of its covenants contained in Article 6 on or before
the Closing (to the extent that such covenants require performance by
Excite@Home on or before the Closing), and at the Closing Kendara will have
received a certificate to such effect signed by an officer of Excite@Home.

     8.3  No Material Adverse Change.  There will not have been any Material
          --------------------------
Adverse Change in Excite@Home, whether or not resulting from a breach in any
representation, warranty

                                      -45-
<PAGE>

or covenant in this Agreement, and at the Closing Kendara will have received a
certificate to such effect signed by and officer of Excite@Home.

     8.4  Requisite Approvals.  This Agreement will have been duly and validly
          -------------------
approved and adopted by Excite@Home's Board of Directors in accordance with
Applicable Law and Excite@Home's Certificate of Incorporation and Bylaws, each
as amended.  This Agreement will have been approved and adopted by Sub's Board
of Directors and sole stockholder in accordance with Applicable Law and Sub's
Certificate of Incorporation and Bylaws, each as amended.

     8.5  Compliance with Law; No Legal Restraints; No Litigation.  There will
          -------------------------------------------------------
not be issued or enacted or adopted, or threatened in writing by any
Governmental Authority, any order, decree, temporary, preliminary or permanent
injunction, legislative enactment, statute, regulation, action or proceeding, or
any judgment or ruling by any Governmental Authority that prohibits or renders
illegal or imposes limitations on the Merger or any other material transaction
contemplated by this Agreement or any Excite@Home Ancillary Agreements or any
Sub Ancillary Agreements. No litigation or proceeding will be threatened or
pending for the purpose or with the probable effect of enjoining or preventing
the consummation of the Merger or any of the other material transactions
contemplated by this Agreement or which could be reasonably expected to have a
Material Adverse Effect on Excite@Home.

     8.6  Government Consents.  There will have been obtained at or prior to the
          -------------------
Closing Date such permits or authorizations, and there will have been taken all
such other actions by any regulatory authority having jurisdiction over the
parties and the actions herein proposed to be taken, as may be required to
lawfully consummate the Merger, including but not limited to requirements under
applicable federal and state securities laws.

     8.7  Opinion of Excite@Home's Counsel.  Kendara will have received from
          --------------------------------
Fenwick & West LLP, counsel to Excite@Home, an opinion covering the matters set
forth in Exhibit G.
         ---------

     8.8  Kendara Tax Opinion.  Kendara shall have received an opinion of
          -------------------
Gunderson Dettmer Stough Villeneuve Franklin & Hachigian LLP, counsel to
Kendara, to the effect that the Merger will be treated for federal income tax
purposes as a reorganization under Section 368(a) of the Code and that each of
Excite@Home, Sub and Kendara will be a party to the reorganization within the
meaning of Section 368(b) of the Code and such opinion shall not have been
withdrawn or modified in any material respect. In the event that Kendara's
counsel shall not render such opinion, then Excite@Home's counsel may render
such opinion in satisfaction of the condition set forth in this Section 8.8.

     8.9  Nasdaq Listing.  The shares of Excite@Home Common Stock that are
          --------------
issuable upon the conversion of outstanding shares of Kendara Common Stock, upon
the conversion of Excite@Home Preferred Stock issued in the Merger and upon
exercise of outstanding Kendara Options and Kendara Warrants, shall be
authorized for listing on the Nasdaq Stock Market, subject to notice of
issuance.

                                      -46-
<PAGE>

     8.10  Certificates of Designation Effective.  The Certificates of
           -------------------------------------
Designation shall have been duly adopted by Excite@Home by all necessary
corporate action, and shall have been duly filed with and accepted by the
Secretary of State of the State of Delaware.

     8.11  Hart-Scott-Rodino Compliance.  All applicable waiting periods under
           ----------------------------
the HSR Act shall have expired or early termination shall have been granted by
both the Federal Trade Commission and the United States Department of Justice.

                                   ARTICLE 9
                   Conditions to Obligations of Excite@Home

     The obligations of Excite@Home hereunder are subject to the fulfillment or
satisfaction on, and as of the Closing, of each of the following conditions (any
one or more of which may be waived by Excite@Home, but only in a writing signed
by Excite@Home):

     9.1   Accuracy of Representations and Warranties. The representations and
           ------------------------------------------
warranties of Kendara set forth in Article 3 (a) that are qualified as to
materiality will be true and correct and (b) that are not qualified as to
materiality shall be true and correct in all material respects, in each case on
and as of the Closing with the same force and effect as if they had been made at
the Closing Date (except for any such representations or warranties that, by
their terms, speak only as of a specific date or dates, in which case such
representations and warranties that are qualified as to materiality shall be
true and correct, and such representations and warranties that are not qualified
as to materiality shall be true and correct in all material respects, on and as
of such specified date or dates), and at the Closing Excite@Home will have
received a certificate to such effect executed by Kendara's President or Chief
Executive Officer. The representations and warranties of each Kendara
Stockholder set forth in such Kendara Stockholder's Investment Representation
Letter shall be true and correct in all material respects.

     9.2   Covenants.  Kendara will have performed and complied in all material
           ---------
respects with all of its covenants contained in Article 5 at or before the
Closing (to the extent that such covenants require performance by Kendara at or
before the Closing), and at the Closing Excite@Home will have received a
certificate to such effect signed by Kendara's President or Chief Executive
Officer.

     9.3   No Material Adverse Change.  There will not have been any Material
           --------------------------
Adverse Change in Kendara, whether or not resulting from a breach in any
representation, warranty or covenant in this Agreement, and at the Closing
Excite@Home will have received a certificate to such effect signed by Kendara's
President or Chief Executive Officer.

     9.4   Compliance with Law; No Legal Restraints; No Litigation. There will
           -------------------------------------------------------
not be any issued, enacted or adopted, or threatened in writing by any
Governmental Authority any order, decree, temporary, preliminary or permanent
injunction, legislative enactment, statute, regulation, action, proceeding
judgment or ruling by any Governmental Authority that prohibits or renders
illegal or imposes limitations on: (a) the Merger or any other material
transaction contemplated by this Agreement or any Kendara Ancillary Agreement;
or (b) Excite@Home's right (or the right of any Excite@Home subsidiary) to own,
retain, use or operate any of its

                                      -47-
<PAGE>

products, properties or assets (including equity, properties or assets of
Kendara) on or after consummation of the Merger or seeking a disposition or
divestiture of any such properties or assets. No litigation or proceeding will
be threatened or pending for the purpose or with the probable effect of
enjoining or preventing the consummation of any of the transactions contemplated
by this Agreement, or which could be reasonably expected to have a Material
Adverse Effect on Kendara or Excite@Home.

     9.5   Government Consents. There will have been obtained at or prior to the
           -------------------
Closing Date such permits or authorizations, and there will have been taken all
such other actions by any governmental or regulatory authority having
jurisdiction over the parties and the actions herein proposed to be taken, as
may be required to consummate the Merger, including but not limited to
requirements under applicable federal and state securities laws.

     9.6   Opinion of Kendara's Counsel.  Excite@Home will have received from
           ----------------------------
Gunderson Dettmer Stough Villeneuve Franklin & Hachigian LLP, counsel to
Kendara, an opinion opining to the matters set forth in Exhibit H.
                                                        ---------

     9.7   Excite@Home Tax Opinion. Kendara shall have received an opinion of
           -----------------------
Fenwick & West LLP, counsel to Excite@Home to the effect that the Merger will be
treated for federal income tax purposes as a reorganization under Section 368(a)
of the Code and that each of Excite@Home, Sub and Kendara will be a party to the
reorganization within the meaning of Section 368(b) of the Code and such opinion
shall not have been withdrawn or modified in any material respect. In the event
that Excite@Home's counsel shall not render such opinion, then Kendara's counsel
may render such opinion in satisfaction of the condition set forth in this
Section 9.7.

     9.8   Consents.  Excite@Home will have received duly executed copies of all
           --------
third-party consents, approvals, assignments, notices, waivers, authorizations
or other certificates (including those set forth in Item 3.12 to the Kendara
Disclosure Letter) contemplated by this Agreement, the Kendara Disclosure Letter
or deemed reasonably necessary to provide for the continuation in full force and
effect of any and all material contracts, agreements and leases of Kendara after
the Merger and the preservation of Kendara's IP Rights and other assets and
properties after the Merger and for Excite@Home to consummate the Merger and the
other transactions contemplated by this Agreement, the Excite@Home Ancillary
Agreements and the Kendara Ancillary Agreements, in each case, in form and
substance satisfactory to Excite@Home.

     9.9   Requisite Approvals.  This Agreement, the Merger and the Kendara
           -------------------
Ancillary Agreements will have been duly and validly approved and adopted, as
required by applicable law and Kendara's Certificate of Incorporation and
Bylaws, by (a) all of the members of Kendara's Board of Directors, (b) the valid
and affirmative vote of at least 90% of the outstanding shares of Kendara Common
Stock and Kendara Preferred Stock.

     9.10  Investment Representation Letters; Exemptions Available. Excite@Home:
           -------------------------------------------------------
(a) will have received an executed counterpart of the Investment Representation
Letter executed by each Kendara Stockholder who approved and adopted this
Agreement, the Merger and the

                                      -48-
<PAGE>

Kendara Ancillary Agreements; and (b) must be reasonably satisfied that there
are not more than thirty-five Kendara Stockholders who are not "accredited
investors" within the meaning of Regulation D promulgated under the Securities.

     9.11  Continued Employment of Certain Personnel. Each of the persons listed
           -----------------------------------------
on Schedule 9.11 to this Agreement will have executed and delivered to
Excite@Home employment agreements substantially in the form attached hereto as
Exhibit I (the "Employment Agreements"), and each such person will be employed
---------
by Kendara.

     9.12  Resignation of Directors and Officers.  The directors and officers of
           -------------------------------------
Kendara in office immediately prior to the Effective Time of the Merger (other
than any such director who is designated in Section 2.6(h)) to be a director of
Kendara immediately after the Effective Time) will have resigned as directors of
the Surviving Corporation in writing effective as of the Effective Time.

     9.13  Certificates of Designation Effective.  The Certificates of
           -------------------------------------
Designation shall have been duly adopted by Excite@Home by all necessary
corporate action, and shall have been duly filed with and accepted by the
Secretary of State of the State of Delaware.

     9.14  Hart-Scott-Rodino Compliance.  All applicable waiting periods under
           ----------------------------
the HSR Act shall have expired or early termination shall have been granted by
both the Federal Trade Commission and the United States Department of Justice.

     9.15  Amendments of Kendara Options.  Each outstanding Kendara Option
           -----------------------------
listed on Schedule 5.11 hereto shall have been duly amended to eliminate any
acceleration of vesting thereunder.

     9.16  Execution of Amended Restricted Stock Purchase Agreements. Kendara
           ---------------------------------------------------------
and each Kendara Founder shall have executed an Amended Restricted Stock
Purchase Agreement.

     9.17  Payment of Transaction Expenses. Kendara shall have paid all
           -------------------------------
Transaction Expenses payable by it.

     9.18  Conversion of Preferred Stock.  All Kendara Preferred Stock shall
           -----------------------------
have been converted into Kendara Common Stock.

     9.19  Kendara Closing Balance Sheet.  Kendara will have provided to
           -----------------------------
Excite@Home evidence satisfactory to Excite@Home that, as of the Closing Date,
(a) Kendara's Current Assets exceed its Total Liabilities, and (b) Kendara holds
cash and cash equivalent equal to or greater than (i) $3,600,000 if the Closing
occurs on or prior to February 11, 2000; and (ii) $2,600,000 if the closing
occurs after February 11, 2000 but on or before the Termination Date.

     9.22  Right of First Refusal and Registration Rights.  Kendara shall have
           ----------------------------------------------
amended Kendara's Bylaws to repeal Article IX of such Bylaws relating to
Kendara's and the Kendara Stockholders' right of first refusal, and Kendara and
the holders of Kendara Preferred Stock shall

                                      -49-
<PAGE>

have amended the Investors' Rights Agreement dated as of May 26, 1999 between
Kendara and such holders to terminate the registration rights of such holder.

                                  ARTICLE 10
                           Termination of Agreement

     10.1  Termination by Mutual Consent.  This Agreement may be terminated at
           -----------------------------
any time prior to the Effective Time by the mutual written consent of
Excite@Home and Kendara.

     10.2  Unilateral Termination.
           ----------------------

           10.2.1   Either Excite@Home or Kendara, by giving written notice to
the other, may terminate this Agreement if a court of competent jurisdiction or
other Governmental Authority shall have issued a nonappealable final order,
decree or ruling or taken any other action, in each case having the effect of
permanently restraining, enjoining or otherwise prohibiting the Merger.

           10.2.2   Either Excite@Home or Kendara, by giving written notice to
the other, may terminate this Agreement if the Merger shall not have been
consummated by midnight Pacific Time on the Termination Date; provided, however,
that the right to terminate this Agreement pursuant to this Section 10.2.2 shall
not be available to any party whose failure to perform in any material respect
any of its obligations or covenants under this Agreement results in the failure
of any condition set forth in Article 8 or Article 9 or if the failure of such
condition results from facts or circumstances that constitute a material breach
of a representation or warranty or covenant made under this Agreement by such
party.

           10.2.3   Either Excite@Home or Kendara may terminate this Agreement
at any time prior to the Effective Time if the other has committed (or, in the
case of a termination by Kendara, Sub has committed) a material breach of (a)
any of its representations and warranties under Article 3 or Article 4 of this
Agreement, as applicable; or (b) any of its covenants under Article 5 or Article
6 of this Agreement, as applicable, and has not cured such material breach
within ten days after the party seeking to terminate this Agreement has given
the other party written notice of the material breach and its intention to
terminate this Agreement pursuant to this Section 10.2.3.

           10.2.4   No Liability for Termination.  Termination of this Agreement
                    ----------------------------
by a party (the "Terminating Party") in accordance with the provisions of this
Section 10 will not give rise to any obligation or liability on the part of the
Terminating Party on account of such termination; provided, however, that
nothing herein shall relieve a party from liability for a willful breach of this
Agreement. The provisions of Article 10 and Article 13 shall survive any
termination of this Agreement.

                                      -50-
<PAGE>

                                  ARTICLE 11
                 Survival of Representations, Indemnification
                      and Remedies, Continuing Covenants

     11.1  Survival of Representations.  All representations, warranties and
           ---------------------------
covenants of the parties to this Agreement contained in this Agreement will
remain operative and in full force and effect, regardless of any investigation
made by or on behalf of any of the parties to this Agreement, until that date
(the "Release Date") which is the earlier of (a) the termination of this
Agreement in accordance with its terms or (b) the first anniversary of the
Effective Time; provided, however, that notwithstanding the foregoing,
Excite@Home may seek recovery of Founder Special Damages (as defined in Section
11.2(c)), Non-Founder Special Damages (as defined in Section 11.2(d)) or
Stockholder Damages (as defined in Section 11.2(b)) at any time prior to the
expiration of the applicable statute of limitations at any time prior to the
expiration of the applicable statute of limitations for the claim which seeks
recovery of such Special Damages or Stockholder Damages.

     11.2  Agreement to Indemnify.
           ----------------------

           (a)  (i) The Kendara Stockholders will severally, but not jointly, on
a pro rata basis based upon their respective ownership interests in Kendara
Common Stock set forth besides their names on Schedule 3.4.1(a) to this
Agreement, indemnify and hold harmless, Excite@Home and the Surviving
Corporation and their respective officers, directors, agents, representatives,
stockholders and employees, and each person, if any, who controls or may control
Excite@Home or the Surviving Corporation within the meaning of the Securities
Act or the Exchange Act (each hereinafter referred to individually as a
"Excite@Home Indemnified Person" and collectively as "Excite@Home Indemnified
Persons") from and against any and all claims, demands, suits, actions, causes
of actions, losses, costs, damages, liabilities and expenses including, without
limitation, reasonable attorneys' fees, other professionals' and experts'
reasonable fees and court or arbitration costs (hereinafter collectively
referred to as "Damages") directly or indirectly incurred, resulting or and
arising out of: (a) any inaccuracy, misrepresentation, breach of, or default in,
any of the representations, warranties or covenants given or made by Kendara in
this Agreement or in the Kendara Disclosure Letter or in any certificate
delivered by or on behalf of Kendara or an officer of Kendara pursuant hereto;
or (b) any Excess Transaction Expenses (as defined in Section 13.7). Except with
respect to claims arising from Founder Special Damages, Non-Founder Special
Damages or Stockholder Damages, which may be raised after the Release Date, any
claim of indemnity made by an Excite@Home Indemnified Person under this Section
11.2(a) must be raised in a writing delivered to the Representative (as defined
below) by no later than the Release Date and, if raised by such date, such claim
shall survive the Release Date until final resolution thereof. Escrow Shares,
other than Escrow Shares having a value (calculated pursuant to Section 11.3(a))
equal to the amount of Damages asserted in any claim (as defined in Section
11.5) which has not been resolved pursuant to the terms hereof prior to the
Release Date, shall be released to the Kendara Stockholders on the Release Date
or, in the case of any such withheld shares, upon the resolution of such
Claim(s).

                                      -51-
<PAGE>

          (b)  Each Kendara Stockholder severally (and not jointly) indemnifies
and holds harmless Excite@Home Indemnified Persons from and against all Damages
incurred or suffered by any such persons or arising from, by reason of or in
connection with (i) any misrepresentation or breach of or default in connection
with any of the representations, warranties, covenants or agreements given or
made by such Kendara Stockholder in the Investment Representation Letter
executed by such Kendara Stockholder pursuant to this Agreement, (ii) the
failure of any Kendara Stockholder to have full right, capacity and authority to
vote such Kendara Common Stock in favor of the Merger and the other transactions
contemplated by this Agreement, (iii) any fraudulent misrepresentation made by
such Kendara Stockholder in the Investment Representation Letter, or (iv), if
such Kendara Stockholder is a Kendara Founder, any fraudulent conduct or
fraudulent misrepresentation in this Agreement or in any Kendara Ancillary
Agreement on the part of such Kendara Founder (collectively "Stockholder
Damages").

          (c)  The Kendara Founders will severally and jointly indemnify and
hold harmless Excite@Home Indemnified Persons from and against Damages incurred
or suffered by any such persons or arising from, by reason of or in connection
with (i) any fraudulent conduct or fraudulent misrepresentation in this
Agreement or in any Kendara Ancillary Agreement on the part of Kendara, or (ii)
any inaccuracy, misrepresentation, breach of or default in, of the
representations and warranties of Kendara set forth in Section 3.4
(Capitalization) or Section 3.7 (Taxes) of this Agreement (collectively "Founder
Special Damages").

          (d)  The Kendara Stockholders (other than the Kendara Founders) will
severally, but not jointly, indemnify and hold harmless Excite@Home Indemnified
Persons from and against all Damages incurred or suffered by any such persons or
arising from, by reasons of or in connection with any fraudulent conduct or
fraudulent misrepresentation made by Kendara in this Agreement or in any Kendara
Ancillary Agreement ("Non-Founder Special Damages").

     11.3  Limitation.
           ----------

          (a)  Cap On Indemnity Obligation.  Except with respect to claims for
               ---------------------------
indemnification for Founder Special Damages, Non-Founder Special Damages and
Stockholder Damages, the Escrow Shares shall constitute the sole and exclusive
remedy of Excite@Home and the Surviving Corporation with respect to Damages. In
seeking indemnification for Damages under Section 11.2, the Excite@Home
Indemnified Persons shall first exercise their remedies with respect to the
Escrow Shares and any other assets deposited in escrow pursuant to the terms of
Section 2.5 and Article 11 hereof (including any shares of Excite@Home capital
stock or other securities into which Excite@Home Preferred Stock is converted or
exchanged or which is received in respect of such shares of Excite@Home
Preferred Stock or other capital stock and securities), and then, solely with
respect to Founder Special Damages, Non-Founder Special Damages and Stockholder
Damages, may seek recovery of such Damages against any other assets of the
Kendara Stockholder or the Kendara Founders (as the case may be). The value of
each share of Excite@Home Preferred Stock shall, for such purposes of satisfying
claims for Damages, be deemed to equal 1,000 times the Excite@Home Average Price
Per Share, regardless of its actual fair market value as of the time that a
claim for indemnification

                                      -52-
<PAGE>

may be made against such share. Each Kendara Stockholder agrees that claims for
indemnification against such person under this Article 11 may be satisfied by
the forfeiture of such person's shares of Excite@Home Preferred Stock (including
fractions of a share thereof) as provided for in this Article 11 and that no
Excite@Home Indemnified Person shall have any obligation to exercise its
remedies against any other assets of such Kendara Stockholder prior to
exercising them against such shares of Excite@Home Preferred Stock. In the event
of a Capital Change after the Effective Time, the Excite@Home Average Price Per
Share will, for purposes of this Section 11.3, be proportionally and equitably
adjusted. Notwithstanding the foregoing, in no event shall any claim for Founder
Special Damages, Non-Founder Special Damages and Stockholder Damages against any
Kendara Stockholder exceed the value of the Excite@Home securities received by
such Kendara Stockholder in the Merger.

          (b)  Basket.  The indemnification provided for in Section 11.2(a)
               ------
shall not apply unless and until the aggregate Damages for which one or more
Excite@Home Indemnified Persons seeks or has sought indemnification hereunder
exceeds a cumulative aggregate of $100,000 (the "Basket"), in which event
Kendara Stockholders shall, subject to the other limitations herein, be liable
to indemnify the Excite@Home Indemnified Persons for all Damages; provided,
however, that the Basket and the foregoing provisions of this sentence shall not
apply to any indemnification claim for fraudulent conduct or fraudulent
misrepresentation on the part of Kendara or a Kendara Stockholder.

     11.4 Appointment of Representative.  By voting in favor of the Merger,
          -----------------------------
each of the Kendara Stockholders approves the designation of and designates
Timothy M. Haley as the Representative of the Kendara Stockholders and as the
attorney-in-fact and agent for and on behalf of each Kendara Stockholder with
respect to claims for indemnification under Article 11 and the taking by the
Representative of any and all actions and the making of any decisions required
or permitted to be taken by the Representative under this Agreement, including,
without limitation, the exercise of the power to:  (a) authorize the release or
delivery to Excite@Home of shares of Excite@Home Preferred Stock and any other
assets deposited in escrow pursuant to the terms of Section 2.5 and Article 11
hereof (including any shares of Excite@Home capital stock or other securities
into which Excite@Home Preferred Stock is converted or exchanged or which is
received in respect of such shares of Excite@Home Preferred Stock or other
capital stock and securities) in satisfaction of indemnity claims by Excite@Home
or any other Excite@Home Indemnified Person (as defined herein) pursuant to
Article 11; (b) agree to, negotiate, enter into settlements and compromises of,
demand arbitration of, and comply with orders of courts and awards of
arbitrators with respect to, such claims; (c) arbitrate, resolve, settle or
compromise any claim for indemnity made pursuant to Article 11; and (d) take all
actions necessary in the judgment of the Representative for the accomplishment
of the foregoing.  The Representative will have authority and power to act on
behalf of each Kendara Stockholder with respect to the disposition, settlement
or other handling of all claims under Article 11 hereof and all rights or
obligations arising under Article 11.  The Kendara Stockholders will be bound by
all actions taken and documents executed by the Representative in connection
with Article 11, and Excite@Home will be entitled to rely on any action or
decision of the Representative.  In performing the functions specified in this
Agreement, the Representative will not be liable to any Kendara Stockholder in
the absence of gross negligence or willful misconduct on the part of the

                                      -53-
<PAGE>

Representative.  The Kendara Stockholders shall severally indemnify the
Representative and hold him harmless against any loss, liability or expense
incurred without gross negligence or willful misconduct on the part of the
Representative and arising out of or in connection with the acceptance or
administration of his duties hereunder.  Any out-of-pocket costs and expenses
reasonably incurred by the Representative in connection with actions taken by
the Representative pursuant to the terms of Article 11 (including without
limitation the hiring of legal counsel and the incurring of legal fees and
costs) will be paid by the Kendara Stockholders to the Representative pro rata
in proportion to their respective percentage equity interests as reflected in
Schedule 3.4.1(a) to this Agreement, which Kendara Stockholders shall be
entitled to reimbursement by  Excite@Home if Excite@Home is determined to be a
Non-Prevailing Party pursuant to Section 11.8(c)(i) below.

     11.5  Notice of Claim. As used herein, the term "Claim" means a claim for
           ---------------
indemnification of Excite@Home or any other Excite@Home Indemnified Person for
Damages under Article 11.  Excite@Home (and only Excite@Home) may give notice of
a Claim under this Agreement whether for its own Damages or for Damages incurred
by any other Excite@Home Indemnified Person, and Excite@Home will give written
notice of a Claim executed by an officer of Excite@Home (a "Notice of Claim") to
the Representative promptly after Excite@Home becomes aware of the existence of
any potential claim by an Excite@Home Indemnified Person for indemnity from the
Kendara Stockholders or a Kendara Stockholder under Article 11, but in any event
before the Release Date arising from or relating to:

           (a)  (i) any inaccuracy, misrepresentation, breach of, or default in,
any of the representations, warranties or covenants given or made by Kendara in
this Agreement or in the Kendara Disclosure Letter or in any certificate
delivered by Kendara or an officer of Kendara pursuant hereto, (ii) the
incurring of any Excess Transaction Expenses, or (iii) any Stockholder Damages;
or

           (b)  the assertion, whether orally or in writing, against Excite@Home
or against any other Excite@Home Indemnified Person of a claim, demand, suit,
action, arbitration, investigation, inquiry or proceeding brought by a third
party against such Indemnified Person that is based upon, or includes assertions
that would, if true, constitute (in each such case, a "Third-Party Claim"): (i)
any inaccuracy, misrepresentation, breach of, or default in, any of the
representations, warranties or covenants given or made by Kendara in this
Agreement or in the Kendara Disclosure Letter or in any certificate delivered by
or on behalf of Kendara or an officer of Kendara pursuant hereto (if such
inaccuracy, misrepresentation, breach or default existed at the Closing Date),
(ii) any Excess Transaction Expenses, or (iii) any Stockholder Damages.

     Until the Release Date, no delay on the part of Excite@Home in giving the
Representative a Notice of Claim will relieve the Representative or any Kendara
Stockholder from any of its obligations under Article 11 unless (and then only
to the extent) that the Representative or the Kendara Stockholders are
materially prejudiced thereby.

                                      -54-
<PAGE>

     11.6 Defense of Third-Party Claims.
          -----------------------------

          (a)  Excite@Home shall defend any Third-Party Claim, and the costs and
expenses incurred by Excite@Home in connection with such defense (including but
not limited to reasonable attorneys' fees, other professionals' and experts'
fees and court or arbitration costs) shall be included in the Damages for which
Excite@Home may seek indemnity pursuant to a Claim made by any Excite@Home
Indemnified Person hereunder.

          (b)  The Representative shall have the right to receive copies of all
pleadings, notices and communications with respect to the Third-Party Claim to
the extent that receipt of such documents by the Representative does not affect
any privilege relating to the Excite@Home Indemnified Person, and may
participate in settlement negotiations with respect to the Third-Party Claim. No
Excite@Home Indemnified Person shall enter into any settlement of a Third-Party
Claim without the prior written consent of the Representative (which consent
shall not be unreasonably withheld), provided, that if the Representative shall
have consented in writing to any such settlement, then the Representative shall
have no power or authority to object to any Claim by any Excite@Home Indemnified
Person for indemnity under Section 11.2 hereof for the amount of such
settlement; and the Kendara Stockholders will remain responsible to indemnify
the Excite@Home Indemnified Persons for all Damages they may incur arising out
of, resulting from or caused by the Third-Party Claim to the fullest extent
provided in Article 11 hereof.

     11.7 Contents of Notice of Claim.  Each Notice of Claim by Excite@Home
          ---------------------------
given pursuant to Section 11.5 will contain the following information:

          (a) that Excite@Home has incurred, paid or properly accrued (in
accordance with GAAP) or, in good faith, believes it will have to incur, pay or
accrue (in accordance with GAAP), Damages in an aggregate stated amount arising
from such Claim (which amount may be the amount of damages claimed by a third
party in an action brought against any Excite@Home Indemnified Person based on
alleged facts, which if true, would give rise to liability for Damages to such
Excite@Home Indemnified Person under Article 11); and

          (b) a brief description, in reasonable detail (to the extent
reasonably available to Excite@Home), of the facts, circumstances or events
giving rise to the alleged Damages based on Excite@Home's good faith belief
thereof, including, without limitation, the identity and address of any third-
party claimant (to the extent reasonably available to Excite@Home) and copies of
any formal demand or complaint, the amount of Damages, the date each such item
was incurred, paid or properly accrued, or the basis for such anticipated
liability, and the specific nature of the breach to which such item is related.

     11.8 Resolution of Notice of Claim.  Any Notice of Claim received by the
          -----------------------------
Representative pursuant to Section 11.5 and Section 11.7 above will be resolved
as follows:

          (a)  Uncontested Claims. In the event that, within forty-five calendar
               ------------------
days after a Notice of Claim is received by the Representative pursuant to
Section 11.5 and Section 11.7, the Representative does not contest such Notice
of Claim in writing to Excite@Home as provided in Section 11.8(b) (an
"Uncontested Claim"), the Representative will be conclusively

                                      -55-
<PAGE>

deemed to have consented, on behalf of all Kendara Stockholders or a Kendara
Stockholder (in the case of a claim for Stockholder Damages), to the recovery by
the Excite@Home Indemnified Person of the full amount of Damages specified in
the Notice of Claim in accordance with this Article 11, including the forfeiture
of shares of Excite@Home Preferred Stock and any other assets deposited in
escrow pursuant to the terms of Section 2.5 and Article 11 hereof (including any
shares of Excite@Home capital stock or other securities into which Excite@Home
Preferred Stock is converted or exchanged or which is received in respect of
such shares of Excite@Home Preferred Stock or other capital stock and
securities), in accordance with Section 11.3(a) and, without further notice, to
have stipulated to the entry of a final judgment for damages against the Kendara
Stockholders or a Kendara Stockholder (in the case of a claim for Stockholder
Damages) for such amount in any court having jurisdiction over the matter where
venue is proper.

          (b)  Contested Claims. In the event that the Representative gives
               ----------------
Excite@Home written notice contesting all or any portion of a Notice of Claim (a
"Contested Claim") within the forty-five day period specified in Section
11.8(a), then: (i) such Contested Claim will be resolved by either (A) a written
settlement agreement executed by Excite@Home and the Representative or (B) in
the absence of such a written settlement agreement, by binding arbitration
between Excite@Home and the Representative in accordance with the terms and
provisions of Section 11.8(c).

          (c)  Arbitration of Contested Claims. Each of Excite@Home, Kendara and
               -------------------------------
the Kendara Stockholders agree that any Contested Claim will be submitted to
mandatory, final and binding arbitration before J.A.M.S./ENDISPUTE or its
successor ("J.A.M.S."), pursuant to the United States Arbitration Act, 9 U.S.C.,
Section 1 et seq. and that any such arbitration will be conducted in San Mateo
County, California. Either Excite@Home or the Representative may commence the
arbitration process called for by this Agreement by filing a written demand for
arbitration with J.A.M.S. and giving a copy of such demand to each of the other
parties to this Agreement. The arbitration will be conducted in accordance with
the provisions of J.A.M.S' Streamlined Arbitration Rules and Procedures in
effect at the time of filing of the demand for arbitration, subject to the
provisions of Section 11.8(c) of this Agreement. The parties will cooperate with
J.A.M.S. and with each other in promptly selecting an arbitrator from J.A.M.S.'
panel of neutrals, and in scheduling the arbitration proceedings in order to
fulfill the provisions, purposes and intent of this Agreement. The parties
covenant that they will participate in the arbitration in good faith, and that
they will share in its costs in accordance with subparagraph (i) below. The
provisions of this Section 11.8(c) may be enforced by any court of competent
jurisdiction, and the party seeking enforcement will be entitled to an award of
all costs, fees and expenses, including attorneys' fees, to be paid by the party
against whom enforcement is ordered. Subject to the provisions of subparagraph
(vii) below, judgment upon the award rendered by the arbitrator may be entered
in any court having competent jurisdiction.

                         (i)  Payment of Costs.  Excite@Home on the one hand,
                              ----------------
and Kendara Stockholders or a Kendara Stockholder (in the case of a claim for
Stockholder Damages) (through the Representative), on the other hand, will bear
the expense of deposits and advances required by the arbitrator in equal
proportions, but either party may advance such

                                      -56-
<PAGE>

amounts, subject to recovery as an addition or offset to any award. The
arbitrator shall determine the party who is the Prevailing Party and the party
who is the Non-Prevailing Party. The Non-Prevailing Party shall pay all
reasonable costs, fees and expenses related to the arbitration, including
reasonable fees and expenses of attorneys, accountants and other professionals
incurred by the prevailing party, the fees of each arbitrator and the
administrative fee of the arbitration proceedings. If such an award would result
in manifest injustice, however, the arbitrator may apportion such costs, fees
and expenses between the parties in such a manner as the arbitrator deems just
and equitable.

                         (ii)  Burden of Proof.  Except as may be otherwise
                               ---------------
expressly provided herein, for any Contested Claim submitted to arbitration, the
burden of proof will be as it would be if the claim were litigated in a judicial
proceeding governed by California law exclusively.

                         (iii) Award.  Upon the conclusion of any arbitration
                               -----
proceedings hereunder, the arbitrator will render findings of fact and
conclusions of law and a final written arbitration award setting forth the basis
and reasons for any decision reached (the "Final Award") and will deliver such
documents to the Representative and Excite@Home, together with a signed copy of
the Final Award. Subject to the provisions of subparagraph (vii) below, the
Final Award will constitute a conclusive determination of all issues in
question, binding upon the Kendara Stockholders or a Kendara Stockholder (in the
case of a claim for Stockholder Damages), the Representative and Excite@Home,
and will include an affirmative statement to such effect.

                         (iv)  Timing.  The Representative, Excite@Home and the
                               ------
arbitrator will conclude each arbitration pursuant to this Section 11.8 as
promptly as possible for the Contested Claim being arbitrated.

                         (v)   Terms of Arbitration. The arbitrator chosen in
                               --------------------
accordance with these provisions will not have the power to alter, amend or
otherwise affect the terms of these arbitration provisions or the provisions of
this Agreement.

                         (vi) Exclusive Remedy.  Following the Effective Time,
                              ----------------
except as specifically otherwise provided in this Agreement, arbitration
conducted in accordance with this Agreement will be the sole and exclusive
remedy of the parties for any Claim made pursuant to Article 11.

     11.9  Distribution Upon Termination of Escrow Period  Within ten business
           ----------------------------------------------
days following the Release Date, Excite@Home shall deliver to the Kendara
Stockholders all of the Escrow Shares in excess of any amount of Escrow Shares
necessary to satisfy any unsatisfied or disputed claims for Damages specified in
any Notice of Claim delivered to the Representative before the Release Date. As
soon as all such claims have been resolved, Excite@Home shall deliver to the
Kendara Stockholders all remaining Escrow Shares not required to satisfy such
claims.

                                      -57-
<PAGE>

                                  ARTICLE 12
                              Registration Rights

     12.1 Certain Definitions.  For purposes of this Article 12:
          -------------------

          (a)  Registration.  The terms "register," "registered" and
               ------------
"registration" refer to a registration effected by preparing and filing a
registration statement in compliance with the Securities Act, and the
declaration or ordering of effectiveness of such registration statement.

          (b)  Registrable Securities.  The term "Registrable Securities" means
               ----------------------
(i) the shares of Excite@Home Common Stock that are issued to the Kendara
Stockholders in the Merger pursuant to Section 2.1.2 hereof (which shares are
not Escrow Shares), (ii) the shares of Excite@Home Common Stock issuable upon
conversion during the one year period commencing at the Effective Time of
Excite@Home Series C Preferred Stock (other than Escrow Excite@Home Series C
Preferred Stock), (iii) the shares of Excite@Home Common Stock that are issued
to holders of the Kendara Warrants upon exercise of such Kendara Warrants, and
(iv) any shares of Excite@Home Common Stock that may be issued as a dividend or
other distribution (including shares of Excite@Home Common Stock issued in a
subdivision and split of Excite@Home's outstanding Common Stock) with respect
to, or in exchange for, or in replacement of, shares of Excite@Home Common Stock
described in clauses (i), (ii) or (iii) of this Section 12.1(b) or in this
clause (iv); excluding in all cases, however, from the definition of
             ---------
"Registrable Securities" any such shares that are: (w) registered under the
Securities Act other than pursuant to a registration statement filed pursuant to
this Agreement; (x) sold by a person in a transaction in which rights under this
Agreement with respect to such shares are not assigned in accordance with the
terms of this Agreement; (y) sold pursuant to a registration statement filed
pursuant to this Agreement; or (z) sold pursuant to Rule 144 promulgated under
the Securities Act or otherwise sold to the public. Only shares of Excite@Home
Common Stock shall be Registrable Securities. Except as provided in clauses
(iii) and (iv) of the first sentence of this Section 12.1(b), without
limitation, the term "Registrable Securities" does not include any shares of
Excite@Home Common Stock that were not issued in connection with the Merger.

          (c)  Holder.  The term "Holder" means a Kendara Stockholder who is the
               ------
original holder of any Registrable Securities or any assignee of record of any
Registrable Securities to whom rights under this Agreement have been duly
assigned in accordance with the provisions of this Agreement.

          (d)  Form S-3.  The term "Form S-3" means a registration statement
               --------
filed under Form S-3 under the Securities Act, as such is in effect at the
Effective Time, or any successor form of registration statement under the
Securities Act subsequently adopted by the SEC which permits inclusion or
incorporation of a substantial amount of information by reference to other
documents filed by Excite@Home with the SEC.

          (e)  Rule 415.  The term "Rule 415" means Rule 415 promulgated under
               --------
the Securities Act, as such Rule may be amended from time to time, or any
similar or successor rule or regulation hereafter adopted by the SEC.

                                      -58-
<PAGE>

     12.2 Form S-3 Shelf Registration.
          ---------------------------

          (a)  Filing and Registration Period. Subject to the terms and
               ------------------------------
conditions of this Agreement, as promptly as practicable following the Effective
Time of the Merger but no later than fifteen whole business days thereafter, and
consistent with the requirements of applicable law, Excite@Home shall prepare
and file with the SEC a registration statement on Form S-3 for an offering to be
made on a continuous basis pursuant to Rule 415 covering all of the then
outstanding Registrable Securities (the "Shelf Registration"). Excite@Home shall
use commercially reasonable efforts to have such Shelf Registration declared
effective as soon as practicable after its filing and to keep the Shelf
Registration continuously effective under the Securities Act for a continuous
period of time (such period of time being hereinafter called the "Registration
Period") commencing on the date the Shelf Registration is declared effective
under the Securities Act by the SEC (the "Date of Effectiveness") and ending on
the date that is the first anniversary of the Effective Time of the Merger.
Excite@Home shall have no duty or obligation to keep the Shelf Registration (or
any Subsequent Registration, as defined below) effective after the expiration of
the Registration Period. Excite@Home shall have no duty or obligation to keep
the Shelf Registration effective after the expiration of the Shelf Registration
Period.

          (b)  Subsequent Registration.  If the Shelf Registration is filed with
               -----------------------
the SEC and becomes effective under the Securities Act, and the Shelf
Registration or a Subsequent Registration (as defined below) thereafter ceases
to be effective for any reason at any time during the Registration Period, then
Excite@Home shall use all reasonable efforts to obtain the prompt withdrawal of
any order suspending the effectiveness thereof, and in any event shall, within
thirty days of such cessation of effectiveness, file an amendment to the Shelf
Registration seeking to obtain the withdrawal of the order suspending the
effectiveness thereof, or file an additional "shelf" registration statement
pursuant to Rule 415 covering all of the then outstanding Registrable Securities
(a "Subsequent Registration"). If a Subsequent Registration is filed,
Excite@Home shall use its best efforts to cause the Subsequent Registration to
be declared effective as soon as practicable after such filing and to keep such
registration statement continuously effective until the end of the Registration
Period.

          (c)  Supplements and Amendments. Subject to the provisions of Section
               --------------------------
12.2(g), during the Registration Period Excite@Home shall supplement and amend
the Shelf Registration or Subsequent Registration, as applicable, if, as and
when required by the Securities Act, the rules and regulations promulgated
thereunder or the rules, regulations or instructions applicable to the
registration form used by Excite@Home for such Shelf Registration.

          (d)  Timing and Manner of Sales. Any sale of Registrable Securities
               --------------------------
pursuant to a Shelf Registration or a Subsequent Registration under this Section
12.2 may be made only during a "Permitted Window" (as defined in Section 12.2(g)
below). In addition, any sale of Registrable Securities pursuant to a Shelf
Registration or a Subsequent Registration under this Section 12.2 may only be
made in accordance with the method or methods of distribution of such
Registrable Securities that are described in the registration statement for the
Shelf Registration (or Subsequent Registration, as applicable) and permitted by
such form of registration statement,

                                      -59-
<PAGE>

which methods of distribution will be specified by the Holders in their Notice
of Resale (as defined below). Subject to any other agreements between the Holder
and Excite@Home or Surviving Corporation, notwithstanding the terms and
conditions of this Section 12, a Holder may also sell Registrable Securities in
a bona fide private offering if the selling Holder provides Excite@Home with a
written opinion of counsel, satisfactory to counsel to Excite@Home acting in a
reasonable manner, that such offer and sale is an exempt transaction under the
Securities Act and applicable state securities laws, complies with all
requirements for such exemptions and is not made with use of the prospectus for
the Shelf Registration (or Subsequent Registration, if applicable).

          (e)  No Underwritings.  No sale of Registrable Securities under any
               ----------------
Shelf Registration (or Subsequent Registration) effected pursuant to this
Section 12.2 may be effected pursuant to any underwritten offering without
Excite@Home's prior written consent, which may be withheld in its sole and
absolute discretion.

          (f)  Notice of Resale.  Before any Holder may make any sale, transfer
               ----------------
or other disposition of any Registrable Securities under the Shelf Registration
(or a Subsequent Registration) during the Registration Period, a Holder who own
at least five percent of the Registrable Securities then outstanding must first
give written notice to Excite@Home (a "Notice of Resale") of such Holder's
present intention to so sell, transfer or otherwise dispose of some or all of
such Holder's Registrable Securities, and the number of Registrable Securities
such Holder propose(s) to so sell, transfer or otherwise dispose of. In
addition, a Notice of Resale shall contain the information required to be
included therein under Section 12.2(g).

          (g)  Permitted Window; Sale Procedures.
               ---------------------------------

               (i)   A "Permitted Window" is a period of thirty consecutive
trading days commencing upon Excite@Home's written notification to the Kendara
Stockholders in response to a Notice of Resale that the prospectus contained in
the Form S-3 registration statement filed pursuant to Section 12.2 of this
Agreement is available to be used for resales of Registrable Securities pursuant
to the Shelf Registration (or a Subsequent Registration, as applicable).

               (ii)  Before a Holder can make a sale of any Registrable
Securities pursuant to the Shelf Registration (or a Subsequent Registration),
and in order to cause a Permitted Window to commence, such Holder must first
give Excite@Home a Notice of Resale indicating such Holder's intention to sell
Registrable Securities pursuant to the Shelf Registration (or Subsequent
Registration, as applicable) and such Holder's intended plan of distribution of
such Registrable Securities (which must conform to the plan of distribution
contained in the prospectus for the Shelf Registration (or Subsequent
Registration, as applicable)).

               (iii) Upon receipt of such Notice of Resale (unless a certificate
of Excite@Home is delivered as provided in Section 12.3(b) below), Excite@Home
will give written notice to all Holders as soon as practicable, but in no event
more than three business days after Excite@Home's receipt of such Notice of
Resale that either:  (A) the prospectus contained in the registration statement
for the Shelf Registration (or Subsequent Registration, if applicable)

                                      -60-
<PAGE>

is current (it being acknowledged that it may be necessary for Excite@Home to
supplement the prospectus or make an appropriate filing under the Exchange Act
so as to cause the prospectus to become current) and that (as applicable) the
Permitted Window will commence on the date of such notice by Excite@Home; or (B)
Excite@Home is required under the Securities Act and the regulations thereunder
to amend the registration statement for the Shelf Registration (or Subsequent
Registration, as applicable) in order to cause the prospectus to be current. In
the event that Excite@Home determines that an amendment to the registration
statement is necessary as provided above, it will use all commercially
reasonable efforts to file and cause such amendment to become effective as soon
as practicable; whereupon it will notify the Holders that the Permitted Window
will then commence.

                    (iv) Excite@Home shall not be obligated to keep the
registration statement for the Shelf Registration (or any Subsequent
Registration) current during any period other than a Permitted Window. The
Holders may elect to withdraw a request for registration pursuant to a Notice of
Resale; provided however, that if Excite@Home has commenced preparation of any
supplement or amendment to the registration statement or any part thereof in
response to such Notice of Resale prior to receiving written notice from the
Holders' of the withdrawal of their request for registration, then the Holders
who originally gave Excite@Home such Notice of Resale will promptly reimburse
Excite@Home for its actual costs and expenses incurred in preparing and/or
filing such supplement and/or amendment.

               (h)  Trading Window Compliance. The Holders acknowledge that the
                    -------------------------
Excite@Home Insider Trading Compliance Program and Insider Trading Policy, as
such may be amended from time to time, a current copy of which has been provided
to Kendara prior to the Closing (the "Excite@Home Trading Policy") requires that
those directors, officers and employees of Excite@Home and its subsidiaries and
those other persons whom Excite@Home determines to be "Access Personnel" or
otherwise subject to the "trading window" and pre-clearance requirements of the
Excite@Home Trading Policy (and members of their immediate families and
households) are permitted to effect trades in Excite@Home securities: (i) only
during those specified time periods ("trading windows") in which such persons
are permitted to make sales, purchases or other trades in Excite@Home's
securities under the "trading window" provisions of the Excite@Home Trading
Policy; and (ii) only after pre-clearance of such sales, purchases or other
trades with Excite@Home's Insider Trading Compliance Officer. If a Holder is or
becomes subject to the "trading window" and/or "pre-clearance" provisions of the
Excite@Home Trading Policy described above, then, notwithstanding anything
herein to the contrary, such Holder may sell, transfer and dispose of
Registrable Securities only during those trading windows during which such
Excite@Home Access Personnel are permitted to effect trades in Excite@Home stock
under the Excite@Home Trading Policy and only after pre-clearing such trades
with Excite@Home's Insider Trading Compliance Officer as provided in the
Excite@Home Trading Policy.

     12.3 Limitations.  Notwithstanding the provisions of Section 12.2 above,
          -----------
Excite@Home shall not be obligated to effect any registration, qualification or
compliance of Registrable Securities pursuant to Section 12.2 of this Agreement,
and the Holders shall not be

                                      -61-
<PAGE>

entitled to sell Registrable Securities pursuant to any registration statement
filed under Section 12.2 of this Agreement, as applicable:

          (a)  if Form S-3 is not then available for such offering by the
Holders;

          (b)  if Excite@Home shall furnish to the Holders (and all other
holders of Excite@Home's registrable securities) a certificate signed by an
officer of Excite@Home stating that, in the good faith judgment of such officer,
it would be detrimental to Excite@Home and its stockholders for such Permitted
Window to be in effect at such time, due, for example, to the existence of a
material development or potential material development involving Excite@Home
which Excite@Home would be obligated to disclose in the prospectus contained in
the Shelf Registration (or Subsequent Registration, as applicable), which
disclosure would, in the good faith judgment of such officer, be premature or
otherwise inadvisable at such time or would have a material adverse affect upon
Excite@Home and its stockholders, in which event Excite@Home will have the right
to defer a Permitted Window for a period of not more than forty days after
receipt of a Notice of Resale from the Holder or Holders pursuant to this
Section 12.3(b), provided that in the event that a Permitted Window is deferred
by Excite@Home pursuant to this Section 12.3(b) then Excite@Home shall extend
the Registration Period hereunder by the number of days that such Permitted
Window was so deferred;

          (c)  if Excite@Home is acquired and Excite@Home Common Stock ceases to
be publicly traded;

          (d)  in any particular jurisdiction in which Excite@Home would be
required to qualify to do business or to execute a general consent to service of
process in effecting such registration, qualification or compliance, unless
Excite@Home is already subject to service of process in such jurisdiction; or

          (e)  if the SEC refuses to declare such registration effective due to
the participation of any particular Holder in such registration (unless such
Holder withdraws all such Holder's Registrable Securities from such registration
statement); or if the manner in which any Registrable Securities are disposed of
pursuant to the Shelf Registration (or Subsequent Registration, as applicable)
is not included within the plan of distribution set forth in the prospectus for
the Shelf Registration (or Subsequent Registration, as applicable).

     12.4 Shares Otherwise Eligible for Resale.  Notwithstanding anything herein
          ------------------------------------
to the contrary, Excite@Home shall not be obligated to effect or continue to
keep effective any such registration, registration statement, qualification or
compliance with respect to the Registrable Securities held by any particular
Holder:

          (a)  if Excite@Home or its legal counsel shall have received a "no-
action" letter or similar written confirmation from the SEC that all the
Registrable Securities then held by such Holder may be resold by such Holder
within a three month period without registration under the Securities Act
pursuant to the provisions of Rule 144 promulgated under the Securities Act (or
successor provisions), or otherwise;

                                      -62-
<PAGE>

          (b)  if legal counsel to Excite@Home shall deliver a written opinion
to Excite@Home, its transfer agent and the Holders, in form and substance
reasonably acceptable to Excite@Home to the effect that all the Registrable
Securities then held by such Holder may be resold by such Holder within a three
month period without registration under the Securities Act pursuant to the
provisions of Rule 144 promulgated under the Securities Act, or otherwise; or

          (c)  after expiration or termination of the Registration Period.

     12.5 Expenses.  Excite@Home shall pay all expenses incurred in connection
          --------
with any registration effected by Excite@Home pursuant to this Agreement
(excluding brokers' discounts and commissions), including, without limitation,
all filing, registration and qualification, printers', legal (including, the
reasonable fees and expenses of one counsel for the Holders as a group) and
accounting fees.

     12.6 Obligations of Excite@Home.  Subject to Sections 12.2, 12.3 and 12.4
          --------------------------
above, when required to effect the registration of any Registrable Securities
under the terms of this Agreement, Excite@Home will, as expeditiously as
reasonably possible:

          (a)  furnish to the Holders such number of copies of the prospectus
for the Shelf Registration (or Subsequent Registration, as applicable),
including a preliminary prospectus (and amendments or supplements thereto), in
conformity with the requirements of the Securities Act, and such other documents
as they may reasonably request in order to facilitate the disposition of the
Registrable Securities owned by them;

          (b)  notify each Holder of Registrable Securities promptly and, if
requested by such Holder, confirm such notification in writing promptly (i) when
a registration statement has become effective and when any post-effective
amendments and supplements thereto become effective, (ii) of any request the SEC
or any state securities authority for post-effective amendments and supplements
to a registration statement has become effective, (iii) of the issuance by the
SEC or any state securities authority of any stop order suspending the
effectiveness of a registration statement or the initiation of any proceedings
for that purpose, (iv) of the receipt by Excite@Home of any notification with
respect to the suspension of the qualification of the Registrable Securities for
sale in any jurisdiction or the initiation or threatening of any proceeding for
such purpose, and (v) of any determination by Excite@Home that a post-effective
amendment to a registration statement would be appropriate;

          (c)  use all reasonable efforts to (i) register and qualify the
securities covered by such registration statement under such other securities or
blue sky laws of such jurisdictions in the United States as will be reasonably
requested by the Holders; provided that Excite@Home will not be required in
connection therewith or as a condition thereto to qualify to do business or to
file a general consent to service of process in any such state or jurisdiction
unless Excite@Home is already so qualified or subject to service of process,
respectively, in such jurisdiction; and (ii) cause such Registrable Securities
to be registered with or approved by such other governmental agencies or
authorities, including the National Association of Securities Dealers as may be
necessary by virtue of the business and operations of Excite@Home; provided that
Excite@Home will not be required to (A) qualify generally to do business in any
jurisdiction

                                      -63-
<PAGE>

where it would not otherwise be required to qualify but for this paragraph (c),
(B) subject itself to taxation in any jurisdiction, or (C) consent to general
service of process in any such jurisdiction except as may be required by the
Securities Act;

          (d)  promptly notify each Holder of Registrable Securities covered by
such registration statement, at any time during a Permitted Window when a
prospectus relating thereto is required to be delivered under the Securities
Act, of the happening of any event as a result of which the prospectus included
in such registration statement, as then in effect, includes an untrue statement
of a material fact or omits to state a material fact required to be stated
therein or necessary to make the statements therein not misleading in the light
of the circumstances then existing and, subject to the provisions of this
Agreement, at the request of any Holder, prepare and furnish to each Holder of
Registrable Securities then outstanding a reasonable number of copies of a
supplement to or an amendment of the prospectus as may be necessary to correct
the untrue statement or omission;

          (e)  make available for inspection by any Holder of Registrable
Securities and any attorney, accountant or other professional retained by any
such Holder (collectively, the "Inspectors"), all financial and other records,
pertinent corporate documents and properties of Excite@Home (collectively, the
"Records") as shall be reasonably necessary to enable them to exercise their due
diligence responsibility, and cause Excite@Home's officers, directors and
employees to supply all information reasonably requested by any Inspectors in
connection with such registration statement; provided, that prior to any such
disclosure, such Inspector executes a non-disclosure agreement in form and
substance acceptable to Excite@Home. Records which Excite@Home determines, in
good faith, to be confidential and which it notifies the Inspectors in writing
are confidential shall not be disclosed to the Inspectors unless (i) the
disclosure of such Records is necessary to avoid or correct a misstatement or
omission in such registration statement or (ii) the release of such Records is
ordered pursuant to a subpoena or other order from a court of competent
jurisdiction. Each Holder of Registrable Securities agrees that information
obtained by it as a result of such inspections shall be deemed confidential and
shall not be used by it as the basis for any market transactions in the
securities of Excite@Home or its affiliates or otherwise disclosed by it unless
and until such is made generally available to the public. Each Holder of such
Registrable Securities further agrees that it will, upon leaning that disclosure
of such Records is sought in a court of competent jurisdiction, give written
notice to Excite@Home and allow Excite@Home, at its expense, to undertake
appropriate action to prevent disclosure of the Records deemed confidential;

          (f)  use its commercially reasonable efforts to cause all such
Registrable Securities to be listed on the Nasdaq National Market and each
securities exchange on which similar securities issued by Excite@Home are then
listed; and

          (g)  upon the request of any Holder, promptly provide the name,
address and other contract information regarding Excite@Home's transfer agent
for the Registrable Securities and the CUSIP number for the Registrable
Securities.

                                      -64-
<PAGE>

     12.7  Furnish Information.  It shall be a condition precedent to the
           -------------------
obligations of Excite@Home to take any action pursuant to this Article 12 that
the selling Holders will furnish to Excite@Home such information regarding
themselves, the Registrable Securities held by them, and the intended method of
disposition and plan of distribution of such Registrable Securities as shall be
required to timely effect the registration of their Registrable Securities.

     12.8  Delay of Registration.  No Holder will have any right to obtain or
           ---------------------
seek an injunction restraining or otherwise delaying any registration that is
the subject of this Agreement as the result of any controversy that might arise
with respect to the interpretation or implementation of this Agreement.

     12.9  Indemnification.
           ---------------

           (a)  By Excite@Home.  To the extent permitted by law, Excite@Home
                --------------
will indemnify, defend and hold harmless each Holder against any losses, claims,
damages, or liabilities (joint or several) to which such Holder may become
subject under the Securities Act, the Exchange Act or other U.S. federal or
state law, insofar as such losses, claims, damages, or liabilities (or actions
in respect thereof) arise out of or are based upon any of the following
statements, omissions or violations (collectively, a "Violation"):

                (i)  any untrue statement or alleged untrue statement of a
material fact contained in a registration statement filed by Excite@Home
pursuant to this Agreement pursuant to which Registrable Securities are sold,
including any preliminary prospectus or final prospectus contained therein or
any amendments or supplements thereto;

                (ii) the omission or alleged omission to state in such
registration statement, preliminary prospectus or final prospectus or any
amendments or supplements thereto, a material fact required to be stated
therein, or necessary to make the statements therein not misleading; or

               (iii) any violation or alleged violation by Excite@Home of the
Securities Act, the Exchange Act, any U.S. federal or state securities law or
any rule or regulation promulgated under the Securities Act, the Exchange Act or
any U.S. federal or state securities law in connection with the offering of
Registrable Securities covered by such registration statement;

provided however, that the indemnity agreement contained in this subsection
12.9(a) shall not apply to amounts paid in settlement of any such loss, claim,
damage, liability or action if such settlement is effected without the written
consent of Excite@Home (which consent shall not be unreasonably withheld), nor
shall Excite@Home be liable in any such case for any such loss, claim, damage,
liability or action to the extent that it arises out of or is based upon a
Violation which occurs in reliance upon and in conformity with written
information furnished expressly for use in connection with such registration by
such Holder.

          (b)  By Selling Holders.  To the extent permitted by law, (i) each
               ------------------
selling Holder will indemnify and hold harmless Excite@Home, each of its
directors, each of its officers

                                      -65-
<PAGE>

who have signed the registration statement, each Person, if any, who controls
Excite@Home within the meaning of the Securities Act, any underwriter and any
other Holder selling securities under such registration statement, against any
losses, claims, damages or liabilities (joint or several) to which Excite@Home
or any such director, officer, controlling person, underwriter or other such
Holder may become subject under the Securities, the Exchange Act or other
federal or state law, insofar as such losses, claims, damages or liabilities (or
actions in respect thereto) arise out of or are based upon any Violation, in
each case to the extent (and only to the extent) that such Violation occurs in
reliance upon and in conformity with written information furnished by such
Holder expressly for use in connection with such registration; (ii) and each
such Holder will indemnify and reimburse Excite@Home or any such director,
officer, controlling person, underwriter or other Holder for any reasonable
attorneys' fees and other expenses reasonably incurred by Excite@Home or any
such director, officer, controlling person, underwriter or other Holder in
connection with investigating or defending any such loss, claim, damage,
liability or action, as incurred. Each selling Holder's liability pursuant to
this Section 12.9(b) shall be limited to an amount equal to the net proceeds
received by such selling Holder pursuant to sales under the registration
statement.

          (c)  Notice.  Promptly after receipt by an indemnified party under
               ------
this Section 12.9 of notice of the commencement of any action (including any
governmental action) against such indemnified party, such indemnified party
will, if a claim for indemnification or contribution in respect thereof is to be
made against any indemnifying party under this Section 12.9, deliver to the
indemnifying party a written notice of the commencement thereof and, if the
indemnifying party is Excite@Home, Excite@Home shall have the right and
obligation to control the defense of such action, and if Excite@Home fails to
defend such action it shall indemnify and reimburse the selling Holders for any
reasonable attorneys' fees and other expenses reasonably incurred by them in
connection with investigating or defending such action; provided, however, that:
(i) Excite@Home shall also have the right, at its option, to assume and control
the defense of any action with respect to which Excite@Home or any person
entitled to be indemnified by the selling Holders under Section 12.9(b) is
entitled to indemnification from the selling Holders; (ii) the indemnified party
or parties shall have the right to participate at its own expense in the defense
of such action and (but only to the extent agreed in writing with Excite@Home
and any other indemnifying party similarly noticed) to assume the defense
thereof with counsel mutually satisfactory to the parties; and (iii) an
indemnified party shall have the right to retain its own counsel, with the fees
and expenses of such counsel to be paid by the indemnifying party, if
representation of such indemnified party by the counsel retained by the
indemnifying party would be inappropriate due to an actual or potential conflict
of interests between such indemnified party and any other party represented by
such counsel in such proceeding. The failure of an indemnified party to deliver
written notice to the indemnifying party within a reasonable time of the
commencement of any such action, if prejudicial to the ability of the
indemnifying party to defend such action, shall relieve such indemnifying party
of any liability to the indemnified party under this Section 12.9, but the
omission so to deliver written notice to the indemnifying party will not relieve
the indemnifying party of any liability that it may have to any indemnified
party otherwise than under this Section 12.9.

                                      -66-
<PAGE>

           (d)  Defect Eliminated in Final Prospectus. The foregoing indemnity
                -------------------------------------
agreements of Excite@Home and the Holders are subject to the condition that,
insofar as they relate to any Violation made in a preliminary prospectus but
eliminated or remedied in the amended or supplemented prospectus on file with
the SEC and effective at the time the sale of Registrable Securities under such
registration statement occurs (the "Amended Prospectus"), such indemnity
agreement shall not inure to the benefit of any person if a copy of the Amended
Prospectus was furnished to the indemnified party and was not furnished to the
person asserting the loss, liability, claim or damage in the action giving rise
to indemnity claims under this Section 12.9, at or prior to the time such action
is required by the Securities Act.

           (e)  Survival.  The obligations of Excite@Home and Holders under this
                --------
Section 12.9 shall survive the completion of any offering of Registrable
Securities in a registration statement pursuant to this Agreement, and
otherwise.

     12.10 Duration and Termination of Excite@Home's Obligations. Excite@Home
           -----------------------------------------------------
will have no obligations pursuant to Section 12.2 of this Agreement with respect
to any Notice of Resale or other request or requests for registration (or
inclusion in a registration) made by any Holder or to maintain or continue to
keep effective any registration or registration statement pursuant hereto: (a)
after the expiration or termination of the Registration Period; (b) with respect
to a particular Holder if, in the opinion of counsel to Excite@Home, all such
Registrable Securities proposed to be sold by such Holder may be sold in a three
(3) month period without registration under the Securities pursuant to Rule 144
promulgated under the Securities or otherwise; or (c) if all Registrable
Securities have been registered and sold pursuant to a registration effected
pursuant to this Agreement and/or have been transferred in transactions in which
registration rights hereunder have not been assigned in accordance with this
Agreement.

     12.11  Acknowledgment of Other Agreements. The Holders acknowledge that
            ----------------------------------
they have been informed by Excite@Home that other stockholders of Excite@Home
currently hold certain Form S-3 and other registration rights that may enable
such other stockholders to sell shares of Excite@Home during one or more
Permitted Windows or at other times (thus potentially adversely affecting the
receptivity of the market to the sale of the Registrable Securities pursuant to
a registration effected pursuant to this Agreement). The Holders further
acknowledge (a) that Excite@Home has agreed not to effect any public sale or
distribution of any of its equity securities or of any security convertible into
or exchangeable or exercisable for any equity security of Excite@Home during the
fourteen days prior to, and during the sixty day period beginning on, the
effective date of any "Demand Registration" (as such term is defined in that
certain Third Amended and Restated Registration Rights Agreement dated as of
April 11, 1997, among Excite@Home and certain holders of Excite@Home capital
stock and attached as Exhibit 4.01 to Excite@Home's Form S-1 filed with the SEC
on May 16, 1997, except as part of such registration, and (b) hereby agree not
to effect any public sale or distribution of any Excite@Home capital stock
during the periods described in clause (a) above, in each case including a sale
pursuant to Rule 144 promulgated under the Securities; provided, that as to each
Holder, Excite@Home shall extend the Registration Period for that number of days
which such Holder of Registrable Securities could have otherwise sold such
securities during a Permitted Window but for the foregoing agreement of the
Holders.

                                      -67-
<PAGE>

     12.12  Assignment.  Notwithstanding anything herein to the contrary, the
            ----------
rights of a Holder under Article 12 may be assigned only with Excite@Home's
express prior written consent, which may be withheld in Excite@Home's sole
discretion; provided, however, that the rights of a Holder under Article 12 may
be assigned without Excite@Home's express prior written consent: (a) to a
Permitted Assignee (as defined below); or (b) (if applicable) by will or by the
laws of intestacy, descent or distribution, provided that the assignee first
agrees in writing to be bound by all the obligations of the Holders under this
Article 12. Any attempt to assign any rights of a Holder under Article 12
without Excite@Home's express prior written consent in a situation in which such
consent is required by this Section shall be null and void and without effect.
Subject to the foregoing restrictions, all rights, covenants and agreements in
Article 12 by or on behalf of the parties hereto will bind and inure to the
benefit of the respective permitted successors and assigns of the parties
hereto. Each of the following parties are "Permitted Assignees" for purposes of
this Section 12.12: (a) a trust whose beneficiaries consist solely of a Holder
and such Holder's immediate family; (b) the personal representative (such as an
executor of a Holder's will), custodian or conservator of a Holder, in the case
of the death, bankruptcy or adjudication of incompetency of that Holder; (c)
immediate family members of a Holder; (d) partners of a Holder that is a
partnership; or (e) members of a Holder that is a limited liability company.

                                  ARTICLE 13
                                 Miscellaneous

     13.1  Governing Law.  The internal laws of the State of California,
           -------------
irrespective of its choice of law principles, will govern the validity of this
Agreement, the construction of its terms, and the interpretation and enforcement
of the rights and duties of the parties hereto; provided, however, that issues
involving the consummation and effects of the Merger shall be governed by the
laws of the State of Delaware.

     13.2  Assignment; Binding Upon Successors and Assigns.  Except as set forth
           -----------------------------------------------
in Section 12.12, neither party hereto may assign any of its rights or
obligations hereunder without the prior written consent of the other party
hereto. This Agreement will be binding upon and inure to the benefit of the
parties hereto and their respective successors and permitted assigns. Any
assignment in violation of this provision shall be void.

     13.3  Severability.  If any provision of this Agreement, or the application
           ------------
thereof, will for any reason and to any extent be invalid or unenforceable, then
the remainder of this Agreement and the application of such provision to other
persons or circumstances will be interpreted so as reasonably to effect the
intent of the parties hereto.  The parties further agree to replace such void or
unenforceable provision of this Agreement with a valid and enforceable provision
that will achieve, to the extent possible, the economic, business and other
purposes of the void or unenforceable provision.

     13.4  Counterparts.  This Agreement may be executed in any number of
           ------------
counterparts, each of which will be an original as regards any party whose
signature appears thereon and all of which together will constitute one and the
same instrument.  This Agreement will become

                                      -68-
<PAGE>

binding when one or more counterparts hereof, individually or taken together,
will bear the signatures of all parties reflected hereon as signatories.

     13.5  Other Remedies.  Except as otherwise provided herein, any and all
           --------------
remedies herein expressly conferred upon a party hereunder will be deemed
cumulative with and not exclusive of any other remedy conferred hereby or by law
on such party, and the exercise of any one remedy will not preclude the exercise
of any other. Excite@Home and Kendara agree that the indemnification and
arbitration provisions set forth in Article 11 shall be each such person's sole
and exclusive remedy with respect to any inaccuracy, misrepresentation, breach
of, or default in, any of the representations, warranties, covenants or
agreements of any such party in this Agreement, other than claims for Founder
Special Damages, Non-Founder Special Damages and Stockholder Damages; provided,
that the foregoing shall not limit the parties' respective rights to seek
specific performance or other injunctive relief. The parties hereto agree that
irreparable damage would occur in the event that any of the provisions of this
Agreement were not performed in accordance with their specific terms or were
otherwise breached. It is accordingly agreed that the parties shall be entitled
to seek an injunction or injunctions to prevent breaches of this Agreement and
to enforce specifically the terms and provisions hereof in any court of the
United States or any state having jurisdiction.

     13.6  Amendment and Waivers.  Any term or provision of this Agreement may
           ---------------------
be amended, and the observance of any term of this Agreement may be waived
(either generally or in a particular instance and either retroactively or
prospectively) only by a writing signed by the party to be bound thereby. The
waiver by a party of any breach hereof or default in the performance hereof will
not be deemed to constitute a waiver of any other default or any succeeding
breach or default. This Agreement may be amended by the parties hereto as
provided in this Section at any time before or after approval of this Agreement
by the Kendara Stockholders, but, after such approval, no amendment will be made
which by applicable law requires the further approval of the Kendara
Stockholders without obtaining such further approval. At any time prior to the
Effective Time, each of Kendara and Excite@Home, by action taken by its Board of
Directors, may, to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other; (ii) waive any
inaccuracies in the representations and warranties made to it contained herein
or in any document delivered pursuant hereto; and (iii) waive compliance with
any of the agreements or conditions for its benefit contained herein. No such
waiver or extension will be effective unless signed in writing by the party
against whom such waiver or extension is asserted. The failure of any party to
enforce any of the provisions hereof will not be construed to be a waiver of the
right of such party thereafter to enforce such provisions.

     13.7  Expenses.  Each party will bear its respective legal, auditors',
           --------
investment bankers' and financial advisors' fees and other expenses incurred
with respect to this Agreement, the Merger and the transactions contemplated
hereby ("Transaction Expenses"), except that Kendara shall pay any Transaction
Expenses of the Kendara Stockholders.  Notwithstanding the foregoing, if the
Merger is successfully consummated, then any Transaction Expenses of Kendara not
paid on or prior to the Closing may be paid by Excite@Home and Excite@Home will
thereafter be entitled to indemnification from the Escrow Shares in accordance
with Section

                                      -69-
<PAGE>

11.2 for an amount equal to the amount of such Transaction Expenses (such
amount, "Excess Transaction Expenses"), and such indemnification shall not be
subject to the Basket.

     13.8  Attorneys' Fees.  Should suit be brought to enforce or interpret any
           ---------------
part of this Agreement, the prevailing party will be entitled to recover, as an
element of the costs of suit and not as damages, reasonable attorneys' fees to
be fixed by the court (including without limitation, costs, expenses and fees on
any appeal). The prevailing party will be entitled to recover its costs of suit,
regardless of whether such suit proceeds to final judgment.

     13.9  Notices.  All notices and other communications required or permitted
           -------
under this Agreement will be in writing and will be either hand delivered in
person, sent by facsimile, sent by certified or registered first class mail,
postage pre-paid, or sent by nationally recognized express courier service. Such
notices and other communications will be effective upon receipt if hand
delivered or sent by facsimile, five days after mailing if sent by mail, and one
day after dispatch if sent by express courier, to the following addresses, or
such other addresses as any party may notify the other parties in accordance
with this Section:

           If to Excite@Home:

               At Home Corporation
               450 Broadway
               Redwood City, CA 94063
               Attention: General Counsel
               Fax Number: (650) 556-5549

          with copies to:

               Fenwick & West LLP
               275 Battery Street, Suite 1500
               San Francisco, CA 94111
               Attention: Douglas N. Cogen
               Fax Number: (415) 281-1350

                                      -70-
<PAGE>

          If to Kendara:

               Kendara, Inc.
               2450 El Camino Real, Suite 200
               Palo Alto, CA 94301
               Attention: President
               Fax Number: (650) 496-1990

          with a copy to:

               Gunderson Dettmer Stough Villeneuve Franklin & Hachigian LLP
               155 Constitution Drive
               Menlo Park, CA 94025
               Attention: Scott Dettmer
               Fax Number: (650) 321-2800

or to such other address as a party may have furnished to the other parties in
writing pursuant to this Section 13.9.

     13.10 Construction of Agreement.  This Agreement has been negotiated by the
           -------------------------
respective parties hereto and their attorneys and the language hereof will not
be construed for or against either party.  A reference to a Section or an
exhibit will mean a Section in, or exhibit to, this Agreement unless otherwise
explicitly set forth.  The titles and headings herein are for reference purposes
only and will not in any manner limit the construction of this Agreement which
will be considered as a whole.  Unless otherwise indicated, the words "include,"
"includes" and "including" when used herein shall be deemed in each case to be
followed by the words "without limitation."  Each reference herein to a law,
statute, regulation, document or agreement shall be deemed in each case to
include all amendments thereto.

     13.11 No Joint Venture.  Nothing contained in this Agreement will be deemed
           ----------------
or construed as creating a joint venture or partnership between any of the
parties hereto. No party is by virtue of this Agreement authorized as an agent,
employee or legal representative of any other party. No party will have the
power to control the activities and operations of any other and their status is,
and at all times will continue to be, that of independent contractors with
respect to each other. No party will have any power or authority to bind or
commit any other party. No party will hold itself out as having any authority or
relationship in contravention of this Section.

     13.12  Further Assurances.  Each party agrees to cooperate fully with the
            ------------------
other parties and to execute such further instruments, documents and agreements
and to give such further written assurances as may be reasonably requested by
any other party to evidence and reflect the transactions described herein and
contemplated hereby and to carry into effect the intents and purposes of this
Agreement.

                                      -71-
<PAGE>

     13.13  Third Party Beneficiary Rights.  No provisions of this Agreement are
            ------------------------------
intended, nor will be interpreted, to provide or create any third party
beneficiary rights or any other rights of any kind in any client, customer,
affiliate, stockholder, partner or any party hereto or any other person or
entity unless specifically provided otherwise herein and, except as so provided,
all provisions hereof will be personal solely between the parties to this
Agreement; except that the provisions of Article 12 are intended to create third
party beneficiary rights for the Kendara Stockholders.

     13.14  Public Announcement.  Upon execution of this Agreement, Excite@Home
            -------------------
and Kendara will issue a press release approved by both parties announcing the
Merger. Thereafter, Excite@Home may issue such press releases, and make such
other disclosures regarding the Merger, as it determines are required under
applicable securities laws or regulatory rules. Prior to the publication of such
initial and mutually agreed press release, neither party will make any public
announcement relating to this Agreement or the transactions contemplated hereby
(except as may be required by law) and Kendara will use its reasonable efforts
to prevent any trading in Excite@Home Common Stock by its officers, directors,
employees, stockholders and agents. Neither Excite@Home nor Kendara will make
any disclosures regarding this Agreement or the Merger that would jeopardize
Excite@Home's ability to timely and lawfully issue the shares of Excite@Home
Common Stock and Excite@Home Preferred Stock in the Merger pursuant to the
exemptions described in Section 2.7.

     13.15  Disclosure Letter.  The Kendara Disclosure Letter shall be arranged
            -----------------
in separate parts corresponding to the numbered and lettered sections contained
in Article 3, and the information disclosed in any numbered or lettered part
shall be deemed to relate to and to qualify only the particular representation
or warranty set forth in the corresponding numbered or lettered section in
Article 3, and shall not be deemed to relate to or to qualify any other
representation or warranty.

     13.16  Confidentiality.  Kendara and Excite@Home each confirm that they
            ---------------
have entered into the Confidentiality Agreement and that they are each bound by,
and will abide by, the provisions of such Confidentiality Agreement (except that
Excite@Home will cease to be bound by the Confidentiality Agreement after the
Merger becomes effective). If this Agreement is terminated, the Confidentiality
Agreement shall remain in full force and effect and all copies of documents
containing confidential information of a disclosing party will be returned by
the receiving party to the disclosing party or be destroyed, as provided in the
Confidentiality Agreement.

     13.17  Entire Agreement. This Agreement and the exhibits hereto constitute
            ----------------
the entire understanding and agreement of the parties hereto with respect to the
subject matter hereof and supersede all prior and contemporaneous agreements or
understandings, inducements or conditions, express or implied, written or oral,
between the parties with respect hereto other than the Confidentiality
Agreement. The express terms hereof control and supersede any course of
performance or usage of the trade inconsistent with any of the terms hereof.

                                      -72-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first above written.

At Home Corporation                   Kendara, Inc.

By:  /s/ David Pine                   By:   /s/ Bret Comolli
    ------------------------------       --------------------------

Name:    David Pine                   Name:     Bret Comolli
      ----------------------------         ------------------------

Title:   SVP, General Counsel         Title:    CEO
       ---------------------------          -----------------------

Grisham Acquisition Corporation

By:  /s/ David Pine
    ------------------------------

Name:    David Pine
      ----------------------------

Title:   President
       ---------------------------

Representative

     /s/ Timothy M. Haley
----------------------------------
Timothy M. Haley

           [Signature Page to Agreement and Plan of Reorganization]

                                      -73-
<PAGE>

                        List of Exhibits and Schedules

Exhibits:
--------

Exhibit A      List of Kendara Founders

Exhibit B      Form of Investment Representation Letter

Exhibit C      Form of Certificate of Designation of Series B Preferred Stock

Exhibit D      Form of Certificate of Designation of Series C Preferred Stock

Exhibit E      Form of Certificate of Merger

Exhibit F      Form of Amended Restricted Stock Purchase Agreement

Exhibit G      Matters to be Covered in the Opinion of Fenwick & West LLP

Exhibit H      Matters to be Covered in the Opinion of Gunderson Dettmer Stough
               Villeneuve Franklin & Hachigian LLP

Exhibit I      Form of Employment Agreement

Schedules:
---------

Schedule 2.1.5      List of Holders of Advisor Unvested Kendara Shares

Schedule 3.4.1(a)   List of Holders of Kendara Common Stock

Schedule 3.4.1(b)   List of Holders of Kendara Options

Schedule 5.11       List of Holders of Amended Kendara Options

Schedule 9.11       List of Kendara Employees Signing Employment Agreements

                                      -74-

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