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                                                                    Exhibit 4.02

                         REGISTRATION RIGHTS AGREEMENT

          REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated as of June 8,
2001, by and among At Home Corporation, a Delaware corporation, with
headquarters located at 450 Broadway Street, Redwood City, California 94063 (the
"Company"), and the undersigned buyers (each, a "Buyer" and collectively, the
"Buyers").

                                   WHEREAS:

          A.   In connection with the Securities Purchase Agreement by and among
the parties hereto of even date herewith (the "Securities Purchase Agreement"),
the Company has agreed, upon the terms and subject to the conditions of the
Securities Purchase Agreement, to issue and sell to the Buyers convertible notes
of the Company (the "Notes"), which will be convertible into shares of the
Company's Series A common stock, par value $0.01 per share (the "Common Stock")
(as converted, the "Conversion Shares") in accordance with the terms of the
Notes.

          B.   To induce the Buyers to execute and deliver the Securities
Purchase Agreement, the Company has agreed to provide certain registration
rights under the Securities Act of 1933, as amended, and the rules and
regulations thereunder, or any similar successor statute (collectively, the
"1933 Act"), and applicable state securities laws.

          NOW, THEREFORE, in consideration of the premises and the mutual
covenants contained herein and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Company and each
of the Buyers hereby agree as follows:

     1.   DEFINITIONS.
          -----------

          As used in this Agreement, the following terms shall have the
following meanings:

          a.   "Investor" means a Buyer, any transferee or assignee thereof to
whom a Buyer assigns its rights under this Agreement and who agrees to become
bound by the provisions of this Agreement in accordance with Section 9 and any
transferee or assignee thereof to whom a transferee or assignee assigns its
rights under this Agreement and who agrees to become bound by the provisions of
this Agreement in accordance with Section 9.

          b.   "Person" means an individual, a limited liability company, a
partnership, a joint venture, a corporation, a trust, an unincorporated
organization and a governmental or any department or agency thereof.

          c.   "Register," "registered," and "registration" refer to a
registration effected by preparing and filing one or more Registration
Statements (as defined below) in compliance with the 1933 Act and pursuant to
Rule 415 under the 1933 Act or any successor rule providing for offering
securities on a continuous or delayed basis ("Rule 415"), and the declaration or
ordering of effectiveness of such Registration Statement(s) by the United States
Securities and Exchange Commission (the "SEC").
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          d.   "Registrable Securities" means the Conversion Shares issued or
issuable upon conversion of the Notes and any shares of capital stock issued or
issuable with respect to the Conversion Shares or the Notes as a result of any
stock split, stock dividend, recapitalization, exchange or similar event or
otherwise, without regard to any limitations on conversions of Notes.

          e.   "Registration Statement" means a registration statement or
registration statements of the Company filed under the 1933 Act covering the
Registrable Securities.

Capitalized terms used herein and not otherwise defined herein shall have the
respective meanings set forth in the Securities Purchase Agreement.

     2.   REGISTRATION.
          ------------

          a.   Mandatory Registration.  The Company shall prepare, and, as soon
               ----------------------
as practicable but in no event later than 45 days after the Closing Date (as
defined in the Securities Purchase Agreement) (the "Filing Deadline"), file with
the SEC the Registration Statement on Form S-3 covering the resale of all of the
Registrable Securities. In the event that Form S-3 is unavailable for such a
registration, the Company shall use such other form as is available for such a
registration, subject to the provisions of Section 2(d). The Registration
Statement prepared pursuant hereto shall register for resale at least that
number of shares of Common Stock equal to the number of Registrable Securities
as of the trading day immediately preceding the date the Registration Statement
is initially filed with the SEC, subject to adjustment as provided in Section
2(e). The Company shall use all reasonable efforts to have the Registration
Statement declared effective by the SEC within 90 days after the Closing Date
(the "Effectiveness Deadline").

          b.   Allocation of Registrable Securities. The initial number of
               ------------------------------------

Registrable Securities included in any Registration Statement and each increase
in the number of Registrable Securities included therein shall be allocated pro
rata among the Investors based on the number of Registrable Securities held by
each Investor at the time the Registration Statement covering such initial
number of Registrable Securities or increase thereof is declared effective by
the SEC. In the event that an Investor sells or otherwise transfers any of such
Investor's Registrable Securities, each transferee shall be allocated a pro rata
portion of the then remaining number of Registrable Securities included in such
Registration Statement for such transferor. Any shares of Common Stock included
in a Registration Statement and which remain allocated to any Person which
ceases to hold any Registrable Securities covered by such Registration Statement
shall be allocated to the remaining Investors, pro rata based on the number of
Registrable Securities then held by such Investors which are covered by such
Registration Statement.

          c.   Legal Counsel. Subject to Section 5 hereof, the Buyers holding at
               -------------
least two-thirds (2/3) of the Registrable Securities shall have the right to
select one legal counsel to review and oversee any offering pursuant to this
Section 2 ("Legal Counsel"), which shall be Katten Muchin Zavis or such other
counsel as thereafter designated by the holders of at least two-thirds (2/3) of
the Registrable Securities. The Company shall reasonably cooperate with Legal
Counsel in performing the Company's obligations under this Agreement.

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          d.   Ineligibility for Form S-3. In the event that Form S-3 is not
               --------------------------
available for the registration of the resale of Registrable Securities
hereunder, the Company shall (i) register the resale of the Registrable
Securities on another appropriate form and (ii) undertake to register the
Registrable Securities on Form S-3 as soon as such form is available, provided
that the Company shall maintain the effectiveness of the Registration Statement
then in effect until such time as a Registration Statement on Form S-3 covering
the Registrable Securities has been declared effective by the SEC.

          e.   Sufficient Number of Shares Registered. In the event the number
               --------------------------------------
of shares available under a Registration Statement filed pursuant to Section
2(a) is insufficient to cover all of the Registrable Securities required to be
covered by such Registration Statement or an Investor's allocated portion of the
Registrable Securities pursuant to Section 2(b), the Company shall amend the
Registration Statement, or file a new Registration Statement (on the short form
available therefor, if applicable), or both, so as to cover at least 100% of the
number of such Registrable Securities as of the trading day immediately
preceding the date of the filing of such amendment or new Registration
Statement, in each case, as soon as practicable, but in any event not later than
fifteen (15) days after the necessity therefor arises. The Company shall use all
reasonable efforts to cause such amendment and/or new Registration Statement to
become effective as soon as practicable following the filing thereof. For
purposes of the foregoing provision, the number of shares available under a
Registration Statement shall be deemed "insufficient to cover all of the
Registrable Securities" if at any time the number of Registrable Securities
issued or issuable upon conversion of the Notes covered by such Registration
Statement is greater than the number of shares of Common Stock available for
resale under such Registration Statement. The calculation set forth in the
foregoing sentence shall be made without regard to any limitations on the
conversion of the Notes and such calculation shall assume that the Notes are
then convertible into shares of Common Stock at the then prevailing Conversion
Rate (as defined in the Notes).

          f.   Effect of Failure to file and Obtain and Maintain Effectiveness
               ---------------------------------------------------------------
of Registration Statement.  If (i) a Registration Statement covering all the
-------------------------
Registrable Securities and required to be filed by the Company pursuant to this
Agreement is not (A) filed with the SEC on or before the Filing Deadline or (B)
declared effective by the SEC on or before the Effectiveness Deadline or (ii) on
any day after the Registration Statement has been declared effective by the SEC
sales of all the Registrable Securities required to be included on such
Registration Statement cannot be made (other than during an Allowable Grace
Period (as defined in Section 3(r)) pursuant to the Registration Statement
(including, without limitation, because of a failure to keep the Registration
Statement effective, to disclose such information as is necessary for sales to
be made pursuant to the Registration Statement or to register sufficient shares
of Common Stock), then, as partial relief for the damages to any holder by
reason of any such delay in or reduction of its ability to sell the underlying
shares of Common Stock (which remedy shall not be exclusive of any other
remedies available at law or in equity), the Company shall pay to each holder of
Notes an amount in cash equal to the product of (A) the Conversion Amount (as
defined in the Notes) of the Notes held by such holder multiplied by (B) the sum
of (i) the product of (I) 0.00033 multiplied by (II) the sum of (x) the number
of days after the Filing Deadline but prior to and including the date which is
120 days after the Closing Date that such Registration Statement is not filed
with the SEC, plus (y) the number of days after the date which is 120 days after
the Closing Date but prior to and including the date which is 180 days after the

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Closing Date that the Registration Statement is not declared effective by the
SEC, plus (z) the number of days after the Registration Statement has been
declared effective by the SEC that such Registration Statement is not available
(other than during an Allowable Grace Period) for the sale of at least all the
Registrable Securities required to be included on such Registration Statement
pursuant to section 2(e), plus (ii) the product of (I) 0.0005 multiplied by (II)
the number of days after the date which is 180 days after the Closing Date that
such Registration Statement is not declared effective by the SEC. The payments
to which a holder shall be entitled pursuant to this Section 2(f) are referred
to herein as "Registration Delay Payments." Registration Delay Payments shall be
paid on the earlier of (I) the last day of the calendar month during which such
Registration Delay Payments are incurred and (II) the third business day after
the event or failure giving rise to the Registration Delayed Payments is cured.
In the event the Company fails to make Registration Delay Payments in a timely
manner, such Registration Delay Payments shall bear interest at the rate of 1.5%
per month (prorated for partial months) until paid in full.

          3.   RELATED OBLIGATIONS.
               -------------------

          At such time as the Company is obligated to file a Registration
Statement with the SEC pursuant to Section 2(a) or 2(e), the Company will use
its best efforts to effect the registration of the Registrable Securities in
accordance with the intended method of disposition thereof and, pursuant
thereto, the Company shall have the following obligations:

          a.   The Company shall promptly prepare and file with the SEC a
Registration Statement with respect to the Registrable Securities (but in no
event later than the Filing Deadline) and use all reasonable efforts to cause
such Registration Statement relating to the Registrable Securities to become
effective as soon as practicable after such filing (but in no event later than
the Effectiveness Deadline). The Company shall keep each Registration Statement
effective pursuant to Rule 415 at all times until the earlier of (i) the date as
of which the Investors may sell all of the Registrable Securities covered by
such Registration Statement without restriction pursuant to Rule 144(k) (or
successor thereto) promulgated under the 1933 Act or (ii) the date on which the
Investors shall have sold all the Registrable Securities covered by such
Registration Statement (the "Registration Period"), which Registration Statement
(including any amendments or supplements thereto and prospectuses contained
therein) shall not contain any 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, in light of the circumstances in which they were made, not
misleading. The term "all reasonable efforts" shall mean, among other things,
that the Company shall submit to the SEC, within two (2) business days after the
Company learns that no review of a particular Registration Statement will be
made by the staff of the SEC or that the staff has no further comments on the
Registration Statement, as the case may be, a request for acceleration of
effectiveness of such Registration Statement to a time and date not later than
48 hours after the submission of such request.

          b.   Subject to Section 3(r), the Company shall prepare and file with
the SEC such amendments (including post-effective amendments) and supplements to
a Registration Statement and the prospectus used in connection with such
Registration Statement, which prospectus is to be filed pursuant to Rule 424
promulgated under the 1933 Act, as may be necessary to keep such Registration
Statement effective at all times during the Registration Period, and, during
such period, comply with the provisions of the 1933 Act with respect to the

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<PAGE>

disposition of all Registrable Securities of the Company covered by such
Registration Statement until such time as all of such Registrable Securities
shall have been disposed of in accordance with the intended methods of
disposition by the seller or sellers thereof as set forth in such Registration
Statement. In the case of amendments and supplements to a Registration Statement
which are required to be filed pursuant to this Agreement (including pursuant to
this Section 3(b)) by reason of the Company filing a report on Form 10-K, Form
10-Q or Form 8-K or any analogous report under the Securities Exchange Act of
1934, as amended (the "1934 Act"), the Company shall have incorporated such
report by reference into the Registration Statement, if applicable, or shall
file such amendments or supplements with the SEC on the same day on which the
1934 Act report is filed which created the requirement for the Company to amend
or supplement the Registration Statement.

          c.   The Company shall permit Legal Counsel to review and comment upon
(i) the Registration Statement at least five (5) days prior to its filing with
the SEC and (ii) all other Registration Statements and all amendments and
supplements to all Registration Statements (except for Annual Reports on Form
10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K and any
similar or successor reports) within a reasonable number of days prior to their
filing with the SEC. The Company shall furnish to Legal Counsel, without charge,
(i) any correspondence from the SEC or the staff of the SEC to the Company or
its representatives relating to any Registration Statement, (ii) promptly after
the same is prepared and filed with the SEC, one copy of any Registration
Statement and any amendment(s) thereto, including financial statements and
schedules, all documents incorporated therein by reference and all exhibits and
(iii) upon the effectiveness of any Registration Statement, one copy of the
prospectus included in such Registration Statement and all amendments and
supplements thereto. The Company shall reasonably cooperate with Legal Counsel
in performing the Company's obligations pursuant to this Section 3.

          d.   The Company shall furnish to each Investor whose Registrable
Securities are included in any Registration Statement, without charge, (i)
promptly after the same is prepared and filed with the SEC, at least one copy of
such Registration Statement and any amendment(s) thereto, including financial
statements and schedules, all documents incorporated therein by reference, all
exhibits and each preliminary prospectus, (ii) upon the effectiveness of any
Registration Statement, one (1) copy of the prospectus included in such
Registration Statement and all amendments and supplements thereto (or such other
number of copies as such Investor may reasonably request) and (iii) such other
documents, including copies of any preliminary or final prospectus, as such
Investor may reasonably request from time to time in order to facilitate the
disposition of the Registrable Securities owned by such Investor.

          e.   Subject to Section 3(r), the Company shall use all reasonable
efforts to (i) register and qualify, unless an exemption from registration and
qualification applies, the resale by Investors of the Registrable Securities
covered by a Registration Statement under such other securities or "blue sky"
laws of all the jurisdictions in the United States, (ii) prepare and file in
those jurisdictions, such amendments (including post-effective amendments) and
supplements to such registrations and qualifications as may be necessary to
maintain the effectiveness thereof during the Registration Period, (iii) take
such other actions as may be necessary to maintain such registrations and
qualifications in effect at all times during the Registration Period, and (iv)
take all other actions reasonably necessary or advisable to qualify the
Registrable Securities for sale

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<PAGE>

in such jurisdictions; provided, however, that the Company shall not be required
in connection therewith or as a condition thereto to (w) register or otherwise
qualify as a broker or dealer in any state, (x) qualify to do business in any
jurisdiction where it would not otherwise be required to qualify but for this
Section 3(e), (y) subject itself to general taxation in any such jurisdiction,
or (z) file a general consent to service of process in any such jurisdiction.
The Company shall promptly notify Legal Counsel and each Investor who holds
Registrable Securities of the receipt by the Company of any notification with
respect to the suspension of the registration or qualification of any of the
Registrable Securities for sale under the securities or "blue sky" laws of any
jurisdiction in the United States or its receipt of actual notice of the
initiation or threatening of any proceeding for such purpose.

          f.   The Company shall notify Legal Counsel and each Investor in
writing of the happening of any event, as promptly as practicable after becoming
aware of such event, as a result of which the prospectus included in a
Registration Statement, as then in effect, includes an untrue statement of a
material fact or omission to state a material fact required to be stated therein
or necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading (provided that in no event shall such
notice contain any material, nonpublic information), and, subject to Section
3(r), promptly prepare a supplement or amendment to such Registration Statement
to correct such untrue statement or omission, and deliver one (1) copy of such
supplement or amendment to Legal Counsel and each Investor (or such other number
of copies as Legal Counsel or such Investor may reasonably request). The Company
shall also promptly notify Legal Counsel and each Investor in writing (i) when a
prospectus or any prospectus supplement or post-effective amendment has been
filed, and when a Registration Statement or any post-effective amendment has
become effective (notification of such effectiveness shall be delivered to Legal
Counsel and each Investor by facsimile on the same day of such effectiveness and
by overnight mail), (ii) of any request by the SEC for amendments or supplements
to a Registration Statement or related prospectus or related information, and
(iii) of the Company's reasonable determination that a post-effective amendment
to a Registration Statement would be appropriate.

          g.   Subject to Section 3(r), the Company shall use all reasonable
efforts to prevent the issuance of any stop order or other suspension of
effectiveness of a Registration Statement, or the suspension of the
qualification of any of the Registrable Securities for sale in any jurisdiction
and, if such an order or suspension is issued, to obtain the withdrawal of such
order or suspension at the earliest possible moment and to notify Legal Counsel
and each Investor who holds Registrable Securities being sold of the issuance of
such order and the resolution thereof or its receipt of actual notice of the
initiation or threat of any proceeding for such purpose.

          h.   At the reasonable request of any Investor, the Company shall
furnish to such Investor, at such Investor's expense, on the date of the
effectiveness of the Registration Statement and thereafter from time to time on
such dates as an Investor may reasonably request (i) a letter, dated such date,
from the Company's independent certified public accountants in form and
substance as is customarily given by independent certified public accountants to
underwriters in an underwritten public offering, addressed to the Investors, and
(ii) an opinion, dated as of such date, of counsel representing the Company for
purposes of such Registration

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Statement, in form, scope and substance as is customarily given in an
underwritten public offering, addressed to the Investors.

          i.   The Company shall make available for inspection by (i) any
Investor, (ii) Legal Counsel and (iii) one firm of accountants or other agents
retained by the Investors (collectively, the "Inspectors"), all pertinent
financial and other records, and pertinent corporate documents and properties of
the Company (collectively, the "Records"), as shall be reasonably deemed
necessary by each Inspector, and cause the Company's officers, directors and
employees to supply all information which any Inspector may reasonably request;
provided, however, that each Inspector and Investor exercising its rights under
this Section 3(i) shall agree to hold in strict confidence and shall not make
any disclosure (except to an Investor who is subject to the non-disclosure and
other obligations set forth in this paragraph) or use of any Record or of any
other information which the Company determines in good faith to be confidential,
and of which determination the Inspectors are so notified, unless (a) the
release of such Records is ordered pursuant to a final, non-appealable subpoena
or order from a court or government body of competent jurisdiction, or (b) the
information in such Records has been made generally available to the public
other than by disclosure in violation of this or any other agreement of which
the Inspector has knowledge. Each Investor agrees that it shall, upon learning
that disclosure of such Records is sought in or by a court or governmental body
of competent jurisdiction or through other means, give prompt notice to the
Company and allow the Company, at its expense, to undertake appropriate action
to prevent disclosure of, or to obtain a protective order for, the Records
deemed confidential. Each Investor which exercises rights under this Section
3(i) shall be obligated to execute a non-disclosure agreement containing such
reasonable terms as the Company may request and covering the specific
information disclosed.

          j.   The Company shall hold in confidence and not make any disclosure
of confidential information concerning an Investor provided to the Company
unless (i) the disclosure of such information is necessary to avoid or correct a
misstatement or omission in any Registration Statement, (ii) the release of such
information is ordered pursuant to a subpoena or other final, non-appealable
order from a court or governmental body of competent jurisdiction, or (iii) such
information has been made generally available to the public other than by
disclosure in violation of this Agreement or any other agreement. The Company
agrees that it shall, upon learning that disclosure of such information
concerning an Investor is sought in or by a court or governmental body of
competent jurisdiction or through other means, give prompt written notice to
such Investor and allow such Investor, at the Investor's expense, to undertake
appropriate action to prevent disclosure of, or to obtain a protective order
for, such information.

          k.   The Company shall use all reasonable efforts either to (i) cause
all the Registrable Securities covered by a Registration Statement to be listed
on each securities exchange on which securities of the same class or series
issued by the Company are then listed, if any, if the listing of such
Registrable Securities is then permitted under the rules of such exchange, or
(ii) secure designation and quotation of all the Registrable Securities covered
by the Registration Statement on the Nasdaq National Market, or (iii) if,
despite the Company's using all reasonable efforts to satisfy the preceding
clause (i) or (ii), the Company is unsuccessful in satisfying the preceding
clause (i) or (ii), to secure the inclusion for quotation on The Nasdaq SmallCap
Market for such Registrable Securities and, without limiting the generality of
the foregoing, to arrange for at least two market makers to register with the
National Association of

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Securities Dealers, Inc. ("NASD") as such with respect to such Registrable
Securities. The Company shall pay all fees and expenses in connection with
satisfying its obligation under this Section 3(k).

          l.   The Company shall cooperate with the Investors who hold
Registrable Securities being offered and, to the extent applicable, facilitate
the timely preparation and delivery of certificates (not bearing any restrictive
legend) representing the Registrable Securities to be offered pursuant to a
Registration Statement and enable such certificates to be in such denominations
or amounts, as the case may be, as the Investors may reasonably request and
registered in such names as the Investors may request.

          m.   If requested by an Investor, the Company shall (i) as soon as
practicable incorporate in a prospectus supplement or post-effective amendment
such information as an Investor requests to be included therein relating to the
sale and distribution of Registrable Securities, including, without limitation,
information with respect to the number of Registrable Securities being offered
or sold, the purchase price being paid therefor and any other terms of the
offering of the Registrable Securities to be sold in such offering; (ii) as soon
as practicable make all required filings of such prospectus supplement or post-
effective amendment after being notified of the matters to be incorporated in
such prospectus supplement or post-effective amendment; and (iii) as soon as
practicable, supplement or make amendments to any Registration Statement if
reasonably requested by an Investor of such Registrable Securities.

          n.   The Company shall use its best efforts to cause the Registrable
Securities covered by the Registration Statement to be registered with or
approved by such other governmental agencies or authorities in the United States
as may be necessary to consummate the disposition of such Registrable Securities
in the United States.

          o.   The Company shall make generally available to its security
holders as soon as practical, but not later than 90 days after the close of the
period covered thereby, an earnings statement (in form complying with the
provisions of Rule 158 under the 1933 Act) covering a twelve-month period
beginning not later than the first day of the Company's fiscal quarter next
following the effective date of the Registration Statement.

          p.   The Company shall otherwise use its best efforts to comply with
all applicable rules and regulations of the SEC in connection with any
registration hereunder.

          q.   Within two (2) business days after a Registration Statement which
covers Registrable Securities is ordered effective by the SEC, the Company shall
deliver, and shall cause legal counsel for the Company to deliver, to the
transfer agent for such Registrable Securities (with copies to the Investors
whose Registrable Securities are included in such Registration Statement)
confirmation that such Registration Statement has been declared effective by the
SEC in the form attached hereto as Exhibit A.
                                   ---------

          r.   Notwithstanding anything to the contrary herein, at any time
after the Registration Statement has been declared effective by the SEC, the
Company may delay the disclosure of material non-public information concerning
the Company the disclosure of which at the time is not, in the good faith
opinion of the Chairperson and Chief Executive Officer of the

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Company after consultation with its counsel, in the best interest of the Company
and, in the opinion of counsel to the Company, otherwise required (a "Grace
Period"); provided, that the Company shall promptly (i) notify the Investors in
writing of the existence of material non-public information giving rise to a
Grace Period (provided that in each notice the Company will not disclose the
content of such material non-public information to the Investors) and the date
on which the Grace Period will begin, and (ii) notify the Investors in writing
of the date on which the Grace Period ends; and, provided further, that no Grace
Period shall exceed 25 consecutive days and during any 365 day period such Grace
Periods shall not exceed an aggregate of 50 days and the first day of any Grace
Period must be at least two trading days after the last day of any prior Grace
Period (an "Allowable Grace Period"); provided, however, that such 25 and 50 day
periods shall be extended to 45 and 90 days, respectively, in the event that
such Grace Period is pursuant to an acquisition by the Company which is required
to be reported under Item 2 of Form 8-K and for which pro forma financial
information is required to be reported pursuant to Regulation S-X promulgated
under the 1933 Act. For purposes of determining the length of a Grace Period
above, the Grace Period shall begin on and include the date the holders receive
the notice referred to in clause (i) and shall end on and include the later of
the date the holders receive the notice referred to in clause (ii) and the date
referred to in such notice. The provisions of Section 3(g) hereof shall not be
applicable during the period of any Allowable Grace Period. Upon expiration of
the Grace Period, the Company shall again be bound by the first sentence of
Section 3(f) with respect to the information giving rise thereto unless such
material non-public information is no longer applicable.

     4.   OBLIGATIONS OF THE INVESTORS.
          ----------------------------

          a.   At least seven (7) business days prior to the first anticipated
filing date of a Registration Statement, the Company shall notify each Investor
in writing of the information the Company requires from each such Investor if
such Investor elects to have any of such Investor's Registrable Securities
included in such Registration Statement. It shall be a condition precedent to
the obligations of the Company to complete the registration pursuant to this
Agreement with respect to the Registrable Securities of a particular Investor
that such Investor shall furnish to the Company such information regarding
itself, the Registrable Securities held by it and the intended method of
disposition of the Registrable Securities held by it as shall be reasonably
required to effect the registration of such Registrable Securities and shall
execute such documents in connection with such registration as the Company may
reasonably request.

          b.   Each Investor, by such Investor's acceptance of the Registrable
Securities, agrees to cooperate with the Company as reasonably requested by the
Company in connection with the preparation and filing of any Registration
Statement hereunder, unless such Investor has notified the Company in writing of
such Investor's election to exclude all of such Investor's Registrable
Securities from such Registration Statement.

          c.   Each Investor agrees that, upon receipt of any notice from the
Company of a Grace Period under Section 3(r) or of the happening of any event of
the kind described in Section 3(g) or the first sentence of 3(f), such Investor
will immediately discontinue disposition of Registrable Securities pursuant to
any Registration Statement(s) covering such Registrable Securities until such
Investor's receipt of the copies of the supplemented or amended prospectus
contemplated by Section 3(g) or the first sentence of 3(f) or receipt of notice
that no supplement

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or amendment is required. Notwithstanding anything to the contrary, the Company
shall cause its transfer agent to deliver unlegended shares of Common Stock to a
transferee of an Investor in accordance with the terms of the Securities
Purchase Agreement in connection with any sale of Registrable Securities with
respect to which an Investor has entered into a contract for sale prior to the
Investor's receipt of a notice from the Company of the happening of any event of
the kind described in Section 3(g) or the first sentence of 3(f) and for which
the Investor has not yet settled.

     5.   EXPENSES OF REGISTRATION.
          ------------------------

          All reasonable expenses, other than underwriting discounts and
commissions, incurred in connection with registrations, filings or
qualifications pursuant to Sections 2 and 3, including, without limitation, all
registration, listing and qualifications fees, printers and accounting fees, and
fees and disbursements of counsel for the Company shall be paid by the Company.

     6.   INDEMNIFICATION.
          ---------------

          In the event any Registrable Securities are included in a Registration
Statement under this Agreement:

          a.   To the fullest extent permitted by law, the Company will, and
hereby does, indemnify, hold harmless and defend each Investor, the directors,
officers, partners, employees, agents, representatives of, and each Person, if
any, who controls any Investor within the meaning of the 1933 Act or the 1934
Act (each, an "Indemnified Person"), against any losses, claims, damages,
liabilities, judgments, fines, penalties, charges, costs, reasonable attorneys'
fees, amounts paid in settlement or expenses, joint or several, (collectively,
"Claims") incurred in investigating, preparing or defending any action, claim,
suit, inquiry, proceeding, investigation or appeal taken from the foregoing by
or before any court or governmental, administrative or other regulatory agency,
body or the SEC, whether pending or threatened, whether or not an indemnified
party is or may be a party thereto ("Indemnified Damages"), to which any of them
may become subject insofar as such Claims (or actions or proceedings, whether
commenced or threatened, in respect thereof) arise out of or are based upon: (i)
any untrue statement or alleged untrue statement of a material fact in a
Registration Statement or any post-effective amendment thereto or in any filing
made in connection with the qualification of the offering under the securities
or other "blue sky" laws of any jurisdiction in which Registrable Securities are
offered ("Blue Sky Filing"), or the omission or alleged omission to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading, (ii) any untrue statement or alleged untrue statement of
a material fact contained in any preliminary prospectus if used prior to the
effective date of such Registration Statement, or contained in the final
prospectus (as amended or supplemented, if the Company files any amendment
thereof or supplement thereto with the SEC) or the omission or alleged omission
to state therein any material fact necessary to make the statements made
therein, in light of the circumstances under which the statements therein were
made, not misleading, (iii) any violation or alleged violation by the Company of
the 1933 Act, the 1934 Act, any other law, including, without limitation, any
state securities law, or any rule or regulation thereunder relating to the offer
or sale of the Registrable Securities pursuant to a Registration Statement or
(iv) any material violation of this

                                       10
<PAGE>

Agreement by the Company (the matters in the foregoing clauses (i) through (iv)
being, collectively, "Violations"). Subject to Section 6(c), the Company shall
reimburse the Indemnified Persons, promptly as such expenses are incurred and
are due and payable, for any legal fees or other reasonable expenses incurred by
them in connection with investigating or defending any such Claim.
Notwithstanding anything to the contrary contained herein, the indemnification
agreement contained in this Section 6(a): (i) shall not apply to a Claim by an
Indemnified Person arising out of or based upon a Violation which occurs in
reliance upon and in conformity with information furnished in writing to the
Company by such Indemnified Person for such Indemnified Person expressly for use
in connection with the preparation of the Registration Statement or any such
amendment thereof or supplement thereto, if such prospectus was timely made
available by the Company pursuant to Section 3(d); (ii) with respect to any
preliminary prospectus, shall not inure to the benefit of any such person from
whom the person asserting any such Claim purchased the Registrable Securities
that are the subject thereof (or to the benefit of any person controlling such
person) if the untrue statement or omission of material fact contained in the
preliminary prospectus was corrected in the prospectus, as then amended or
supplemented, if such prospectus was timely made available by the Company
pursuant to Section 3(d), and the Indemnified Person was promptly advised in
writing not to use the incorrect prospectus prior to the use giving rise to a
violation and such Indemnified Person, notwithstanding such advice, used it or
failed to deliver the correct prospectus as required by the 1933 Act and such
correct prospectus was timely made available pursuant to Section 3(d); (iii)
shall not be available to the extent such Claim is based on a failure of the
Investor to deliver or to cause to be delivered the prospectus made available by
the Company, including a corrected prospectus, if such prospectus or corrected
prospectus was timely made available by the Company pursuant to Section 3(d);
and (iv) shall not apply to amounts paid in settlement of any Claim if such
settlement is effected without the prior written consent of the Company, which
consent shall not be unreasonably withheld. Such indemnity shall remain in full
force and effect regardless of any investigation made by or on behalf of the
Indemnified Person and shall survive the transfer of the Registrable Securities
by the Investors pursuant to Section 9.

          b.   In connection with any Registration Statement in which an
Investor is participating, each such Investor agrees to severally and not
jointly indemnify, hold harmless and defend, to the same extent and in the same
manner as is set forth in Section 6(a), the Company, each of its directors, each
of its officers who signs the Registration Statement each Person, if any, who
controls the Company within the meaning of the 1933 Act or the 1934 Act (each an
"Indemnified Party"), against any Claim or Indemnified Damages to which any of
them may become subject, under the 1933 Act, the 1934 Act or otherwise, insofar
as such Claim or Indemnified Damages 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 to the Company by such Investor expressly for use in connection with
such Registration Statement; and, subject to Section 6(c), such Investor will
reimburse any legal or other expenses reasonably incurred by an Indemnified
Party in connection with investigating or defending any such Claim; provided,
however, that the indemnity agreement contained in this Section 6(b) and the
agreement with respect to contribution contained in Section 7 shall not apply to
amounts paid in settlement of any Claim if such settlement is effected without
the prior written consent of such Investor, which consent shall not be
unreasonably withheld; provided, further, however, that the Investor shall be
liable under this Section 6(b) for only that amount of a Claim or Indemnified
Damages as does not exceed the net proceeds to such Investor as a result of the
sale of Registrable Securities pursuant to such Registration Statement. Such
indemnity

                                       11
<PAGE>

shall remain in full force and effect regardless of any investigation made by or
on behalf of such Indemnified Party and shall survive the transfer of the
Registrable Securities by the Investors pursuant to Section 9. Notwithstanding
anything to the contrary contained herein, the indemnification agreement
contained in this Section 6(b) with respect to any preliminary prospectus shall
not inure to the benefit of any Indemnified Party if the untrue statement or
omission of material fact contained in the preliminary prospectus was corrected
on a timely basis in the prospectus, as then amended or supplemented.

          c.   Promptly after receipt by an Indemnified Person or Indemnified
Party under this Section 6 of notice of the commencement of any action or
proceeding (including any governmental action or proceeding) involving a Claim,
such Indemnified Person or Indemnified Party shall, if a Claim in respect
thereof is to be made against any indemnifying party under this Section 6,
deliver to the indemnifying party a written notice of the commencement thereof,
and the indemnifying party shall have the right to participate at its own
expense in, and, to the extent the indemnifying party so desires, jointly with
any other indemnifying party similarly noticed, to assume control of the defense
thereof with counsel mutually satisfactory to the indemnifying party and the
Indemnified Person or the Indemnified Party, as the case may be; provided,
however, that an Indemnified Person or Indemnified Party shall have the right to
retain its own counsel with the fees and expenses of not more than one counsel
for all such Indemnified Persons or Indemnified Parties to be paid by the
indemnifying party, if, in the reasonable opinion of counsel retained by the
indemnifying party, the representation by such counsel of the Indemnified Person
or Indemnified Party and the indemnifying party would be inappropriate due to
actual or potential differing interests between such Indemnified Person or
Indemnified Party and any other party represented by such counsel in such
proceeding. In the case of an Indemnified Person, legal counsel referred to in
the immediately preceding sentence shall be selected by the Investors holding at
least two-thirds (2/3) in interest of the Registrable Securities included in the
Registration Statement to which the Claim relates. The Indemnified Party or
Indemnified Person shall cooperate fully with the indemnifying party in
connection with any negotiation or defense of any such action or Claim by the
indemnifying party and shall furnish to the indemnifying party all information
reasonably available to the Indemnified Party or Indemnified Person which
relates to such action or Claim. The indemnifying party shall keep the
Indemnified Party or Indemnified Person fully apprized at all times as to the
status of the defense or any settlement negotiations with respect thereto. No
indemnifying party shall be liable for any settlement of any action, claim or
proceeding effected without its prior written consent, provided, however, that
the indemnifying party shall not unreasonably withhold, delay or condition its
consent. No indemnifying party shall, without the prior written consent of the
Indemnified Party or Indemnified Person, consent to entry of any judgment or
enter into any settlement or other compromise which does not include as an
unconditional term thereof the giving by the claimant or plaintiff to such
Indemnified Party or Indemnified Person of a release from all liability in
respect to such Claim or litigation. Following indemnification as provided for
hereunder, the indemnifying party shall be subrogated to all rights of the
Indemnified Party or Indemnified Person with respect to all third parties, firms
or corporations relating to the matter for which indemnification has been made.
The failure to deliver written notice to the indemnifying party within a
reasonable time of the commencement of any such action shall not relieve such
indemnifying party of any liability to the Indemnified Person or Indemnified
Party under this Section 6, except to the extent that the indemnifying party is
prejudiced in its ability to defend such action.



                                       12
<PAGE>

          d.   The indemnification of costs, expenses and reasonable attorneys'
fees required by this Section 6 shall be made by periodic payments of the amount
thereof during the course of the investigation or defense, as and when bills are
received or such costs, expenses or fees are incurred.

          e.   The indemnity agreements contained herein shall be in addition to
(i) any cause of action or similar right of the Indemnified Party or Indemnified
Person against the indemnifying party or others, and (ii) any liabilities the
indemnifying party may be subject to pursuant to the law.

     7.   CONTRIBUTION.
          ------------

     To the extent any indemnification by an indemnifying party is prohibited or
limited by law, the indemnifying party agrees to make the maximum contribution
with respect to any amounts for which it would otherwise be liable under Section
6 to the fullest extent permitted by law; provided, however, that: (i) no person
involved in the sale of Registrable Securities which person is guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933
Act) in connection with such sale shall be entitled to contribution from any
person involved in such sale of Registrable Securities who was not guilty of
fraudulent misrepresentation; and (ii) contribution by any seller of Registrable
Securities shall be limited in amount to the net amount of proceeds received by
such seller from the sale of such Registrable Securities pursuant to such
Registration Statement.

     8.   REPORTS UNDER THE 1934 ACT.
          --------------------------

     With a view to making available to the Investors the benefits of Rule 144
promulgated under the 1933 Act or any other similar rule or regulation of the
SEC that may at any time permit the Investors to sell securities of the Company
to the public without registration ("Rule 144"), the Company agrees to:

          a.   make and keep public information available, as those terms are
understood and defined in Rule 144;

          b.   file with the SEC in a timely manner all reports and other
documents required of the Company under the 1933 Act and the 1934 Act so long as
the Company remains subject to such requirements (it being understood that
nothing herein shall limit the Company's obligations under Section 4(c) of the
Securities Purchase Agreement) and the filing of such reports and other
documents is required for the applicable provisions of Rule 144; and

          c.   furnish to each Investor so long as such Investor owns
Registrable Securities, promptly upon request, (i) a written statement by the
Company, if true, that it has complied with the reporting requirements of Rule
144, the 1933 Act and the 1934 Act, (ii) a copy of the most recent annual or
quarterly report of the Company and such other reports and documents so filed by
the Company, and (iii) such other information as may be reasonably requested to
permit the investors to sell such securities pursuant to Rule 144 without
registration.

                                       13
<PAGE>

     9.   ASSIGNMENT OF REGISTRATION RIGHTS.
          ---------------------------------

     The rights under this Agreement shall be automatically assignable by the
Investors to any transferee of all or any portion of the Registrable Securities
if: (i) the Investor agrees in writing with the transferee or assignee to assign
such rights, and a copy of such agreement is furnished to the Company within ten
(10) days after such assignment; (ii) the Company is, within ten (10) days after
such transfer or assignment, furnished with written notice of (a) the name and
address of such transferee or assignee, and (b) the securities with respect to
which such registration rights are being transferred or assigned; (iii)
immediately following such transfer or assignment the further disposition of
such securities by the transferee or assignee is restricted under the 1933 Act
and applicable state securities laws; (iv) at or before the time the Company
receives the written notice contemplated by clause (ii) of this sentence the
transferee or assignee agrees in writing with the Company to be bound by all of
the provisions contained herein; and (v) such transfer shall have been made in
accordance with the applicable requirements of the Securities Purchase
Agreement.

     10.  AMENDMENT OF REGISTRATION RIGHTS.
          --------------------------------

     Provisions of this Agreement may be amended and the observance thereof may
be waived (either generally or in a particular instance and either retroactively
or prospectively), only with the written consent of the Company and Investors
who then hold at least two-thirds (2/3) of the Registrable Securities. Any
amendment or waiver effected in accordance with this Section 10 shall be binding
upon each Investor and the Company. No such amendment shall be effective to the
extent that it applies to less than all of the holders of the Registrable
Securities. No consideration shall be offered or paid to any Person to amend or
consent to a waiver or modification of any provision of any of this Agreement
unless the same consideration also is offered to all of the parties to this
Agreement.

     11.  MISCELLANEOUS.
          -------------

          a.   A Person is deemed to be a holder of Registrable Securities
whenever such Person owns or is deemed to own of record such Registrable
Securities. If the Company receives conflicting instructions, notices or
elections from two or more Persons with respect to the same Registrable
Securities, the Company shall act upon the basis of instructions, notice or
election received from the registered owner of such Registrable Securities.

          b.   Any notices, consents, waivers or other communications required
or permitted to be given under the terms of this Agreement must be in writing
and will be deemed to have been delivered: (i) upon receipt, when delivered
personally; (ii) upon receipt, when sent by facsimile (provided confirmation of
transmission is mechanically or electronically generated and kept on file by the
sending party); or (iii) one business day after deposit with a nationally
recognized overnight delivery service, in each case properly addressed to the
party to receive the same. The addresses and facsimile numbers for such
communications shall be:

     If to the Company:

          At Home Corporation

                                       14
<PAGE>

          450 Broadway Street
          Redwood City, CA 94063
          Telephone: (650) 556-5000
          Facsimile: (650) 556-3430
          Attention:  General Counsel


     With a copy to:

          Fenwick & West LLP
          Two Palo Alto Square
          Palo Alto, CA 94306
          Telephone: (650) 494-0400
          Facsimile: (650) 494-1417
          Attention: Gordon Davidson, T.J. Hall and David Michaels

     If to Legal Counsel:

          Katten Muchin Zavis
          525 West Monroe Street, Suite 1600
          Chicago, Illinois 60661-3693
          Telephone:  312-902-5200
          Facsimile:  312-902-1061
          Attention:  Robert J. Brantman, Esq.


     If to a Buyer, to its address and facsimile number set forth on the
Schedule of Buyers attached hereto, with copies to such Buyer's representatives
as set forth on the Schedule of Buyers, or to such other address and/or
facsimile number and/or to the attention of such other person as the recipient
party has specified by written notice given to each other party five (5) days
prior to the effectiveness of such change. The Company may modify its notice
information specified above by providing written notice to each other party of
such other address and/or facsimile number and/or such other person whose
attention a notice should be directed, five days prior to the effectiveness of
such change. Written confirmation of receipt (A) given by the recipient of such
notice, consent, waiver or other communication, (B) mechanically or
electronically generated by the sender's facsimile machine containing the time,
date, recipient facsimile number and an image of the first page of such
transmission or (C) provided by a courier or overnight courier service shall be
rebuttable evidence of personal service, receipt by facsimile or receipt from a
nationally recognized overnight delivery service in accordance with clause (i),
(ii) or (iii) above, respectively.

          c.   Failure of any party to exercise any right or remedy under this
Agreement or otherwise, or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

          d.   All questions concerning the construction, validity, enforcement
and interpretation of this Agreement shall be governed by the internal laws of
the State of New York,

                                       15
<PAGE>

without giving effect to any choice of law or conflict of law provision or rule
(whether of the State of New York or any other jurisdictions) that would cause
the application of the laws of any jurisdictions other than the State of New
York. Each party hereby irrevocably submits to the non-exclusive jurisdiction of
the state and federal courts sitting the City of New York, borough of Manhattan,
for the adjudication of any dispute hereunder or in connection herewith or with
any transaction contemplated hereby or discussed herein, and hereby irrevocably
waives, and agrees not to assert in any suit, action or proceeding, any claim
that it is not personally subject to the jurisdiction of any such court, that
such suit, action or proceeding is brought in an inconvenient forum or that the
venue of such suit, action or proceeding is improper. Each party hereby
irrevocably waives personal service of process and consents to process being
served in any such suit, action or proceeding by mailing a copy thereof to such
party at the address for such notices to it under this Agreement and agrees that
such service shall constitute good and sufficient service of process and notice
thereof. Nothing contained herein shall be deemed to limit in any way any right
to serve process in any manner permitted by law. If any provision of this
Agreement shall be invalid or unenforceable in any jurisdiction, such invalidity
or unenforceability shall not affect the validity or enforceability of the
remainder of this Agreement in that jurisdiction or the validity or
enforceability of any provision of this Agreement in any other jurisdiction.
EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO
REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN
CONNECTION HEREWITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION
CONTEMPLATED HEREBY.

          e.   This Agreement, the Securities Purchase Agreement and the Notes
constitute the entire agreement among the parties hereto with respect to the
subject matter hereof and thereof. There are no restrictions, promises,
warranties or undertakings, other than those set forth or referred to herein and
therein. This Agreement, the Securities Purchase Agreement and the Notes
supersede all prior agreements and understandings among the parties hereto with
respect to the subject matter hereof and thereof.

          f.   Subject to the requirements of Section 9, this Agreement shall
inure to the benefit of and be binding upon the permitted successors and assigns
of each of the parties hereto.

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

          h.   This Agreement may be executed in identical counterparts, each of
which shall be deemed an original but all of which shall constitute one and the
same agreement. This Agreement, once executed by a party, may be delivered to
the other party hereto by facsimile transmission of a copy of this Agreement
bearing the signature of the party so delivering this Agreement.

          i.   Each party shall do and perform, or cause to be done and
performed, all such further acts and things, and shall execute and deliver all
such other agreements, certificates, instruments and documents, as the other
party may reasonably request in order to carry out the intent and accomplish the
purposes of this Agreement and the consummation of the transactions contemplated
hereby.

                                       16
<PAGE>

          j.   All consents and other determinations required to be made by the
Investors pursuant to this Agreement shall be made, unless otherwise specified
in this Agreement, by Investors holding at least two-thirds (2/3) of the
Registrable Securities, determined as if all of the Notes then outstanding have
been converted into Registrable Securities without regard to any limitations on
conversion of the Notes.

          k.   The language used in this Agreement will be deemed to be the
language chosen by the parties to express their mutual intent and no rules of
strict construction will be applied against any party.

          l.   This Agreement is intended for the benefit of the parties hereto
and their respective permitted successors and assigns, and is not for the
benefit of, nor may any provision hereof be enforced by, any other Person.

                                  * * * * * *

                                       17
<PAGE>

     IN WITNESS WHEREOF, the parties have caused this Registration Rights
Agreement to be duly executed as of day and year first above written.

COMPANY:                                BUYERS:

AT HOME CORPORATION                     HFTP INVESTMENT L.L.C.


By:________________                     By:   Promethean Asset Management L.L.C
Name:______________                     Its:  Investment Manager
Its:_______________

                                        By:______________________________
                                        Name:____________________________
                                        Title:___________________________

                                        GAIA OFFSHORE MASTER FUND, LTD.

                                        By:   Promethean Asset Management L.L.C
                                        Its:  Investment Manager


                                        By:______________________________
                                        Name:____________________________
                                        Title:___________________________

                                        LEONARDO, L.P.

                                        By:   Angelo, Gordon & Co., L.P.
                                        Its:  General Partner


                                        By:______________________________
                                        Name:____________________________
                                        Title:___________________________

                                       18
<PAGE>

               [Signature Page to Registration Rights Agreement]

     SCHEDULE OF BUYERS


<TABLE>
<CAPTION>

       Buyer's Name                                       Buyer Address                           Buyer's Legal Representatives'
                                                      and Facsimile Number                        Address and Facsimile Number

---------------------------------            --------------------------------------       ----------------------------------------
<S>                                          <C>                                          <C>
HFTP Investment L.L.C.                       Promethean Asset Management L.L.C.           Promethean Investment Group, L.L.C.
                                             750 Lexington Avenue, 22/nd/ Floor           750 Lexington Ave., 22/nd/ Floor
                                             New York, NY 10022                           New York, NY 10022
                                             Attention:   James F. O'Brien, Jr.           Attn: James F. O'Brien, Jr.
                                                           John Floegel                         John Floegel
                                             Telephone:  (212) 702-5200                   Telephone: 212-702-5200
                                             Facsimile: (212) 758-9334                    Facsimile:212-758-9334
                                             Residence: New York
                                                                                          Katten Muchin Zavis
                                                                                          525 W. Monroe Street
                                                                                          Chicago, Illinois 60661-3693
                                                                                          Attention: Robert J. Brantman, Esq.
                                                                                          Telephone: (312) 902-5200
                                                                                          Facsimile: (312) 902-1061
Gaia Offshore Master Fund, Ltd.              Promethean Asset Management L.L.C.           Promethean Investment Group, L.L.C.
                                             750 Lexington Avenue, 22/nd/ Floor           750 Lexington Ave., 22/nd/ Floor
                                             New York, NY 10022                           New York, NY 10022
                                             Attention:   James F. O'Brien, Jr.           Attn: James F. O'Brien, Jr.
                                                           John Floegel                        John Floegel
                                             Telephone: (212) 702-5200                    Telephone: 212-702-5200
                                             Facsimile: (212) 758-9334                    Facsimile: 212-758-9334
                                             Residence: New York
                                                                                          Katten Muchin Zavis
                                                                                          525 W. Monroe Street
                                                                                          Chicago, Illinois 60661-3693
                                                                                          Attention: Robert J. Brantman, Esq.
                                                                                          Telephone: (312) 902-5200
                                                                                          Facsimile: (312) 902-1061
Leonardo, L.P.                               c/o Angelo, Gordon & Co., L.P.               Akin, Gump, Strauss, Hauer & Feld, L.L.P.
                                             245 Park Avenue - 26/th/ Floor               590 Madison Avenue
                                             New York, New York 10167                     New York, New York 10022
                                             Attention:   Gary Wolf                       Attention: Robert S. Matlin, Esq.
                                             Telephone: (212) 692-2058                    Telephone: (212) 872-1000
                                             Facsimile: (212) 867-6449                    Facsimile: (212) 872-1002
                                             Residence: Caymen Islands

</TABLE>
<PAGE>

                                                                       EXHIBIT A
                        FORM OF NOTICE OF EFFECTIVENESS
                           OF REGISTRATION STATEMENT

[TRANSFER AGENT]
Attn:______________

              Re:  At Home Corporation

Ladies and Gentlemen:

     We are counsel to At Home Corporation, a Delaware corporation (the
"Company"), and have represented the Company in connection with that certain
Securities Purchase Agreement (the "Purchase Agreement") entered into by and
among the Company and the buyers named therein (collectively, the "Holders")
pursuant to which the Company issued to the Holders convertible notes which are
convertible into shares of the Company's Series A common stock, par value $0.01
per share (the "Common Stock"). Pursuant to the Purchase Agreement, the Company
also has entered into a Registration Rights Agreement with the Holders (the
"Registration Rights Agreement") pursuant to which the Company agreed, among
other things, to register the Registrable Securities (as defined in the
Registration Rights Agreement) under the Securities Act of 1933, as amended (the
"1933 Act"). In connection with the Company's obligations under the Registration
Rights Agreement, on _____________ 2001, the Company filed a Registration
Statement on Form S-3 (File No. 333-_____________) (the "Registration
Statement") with the Securities and Exchange Commission (the "SEC") relating to
the Registrable Securities which names each of the Holders as a selling
stockholder thereunder.

     In connection with the foregoing, we advise you that a member of the SEC's
staff has advised us by telephone that the SEC has entered an order declaring
the Registration Statement effective under the 1933 Act at [ENTER TIME OF
EFFECTIVENESS] on [ENTER DATE OF EFFECTIVENESS] and we have no knowledge, after
telephonic inquiry of a member of the SEC's staff, that any stop order
suspending its effectiveness has been issued or that any proceedings for that
purpose are pending before, or threatened by, the SEC and the Registrable
Securities are available for resale under the 1933 Act pursuant to the
Registration Statement (subject to applicable prospectus delivery requirements
of the 1933 Act).

                               Very truly yours,

                               [ISSUER'S COUNSEL]

                               By:_____________________

cc:  [LIST NAMES OF HOLDERS]