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                                                                     EXHIBIT 4.6

THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 AS
AMENDED, OR ANY STATE SECURITIES LAWS. THEY MAY NOT BE SOLD, OFFERED FOR SALE,
PLEDGED, OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
RELATED THERETO OR AN OPINION OF COUNSEL (WHICH MAY BE COMPANY COUNSEL)
REASONABLY SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES
LAWS.

                               WARRANT AGREEMENT

             To Purchase Shares of the Series D Preferred Stock of

                         RELEASE SOFTWARE CORPORATION

               Dated as of April 16, 1999 (the "Effective Date")

     WHEREAS, Release Software Corporation, a Delaware corporation (the
"Company") has entered into a Master Lease Agreement dated as of April 16, 1999,
Equipment Schedule No. VL-1 and VL-2 dated as of April 16, 1999, and related
Summary Equipment Schedules (collectively, the "Leases") with Comdisco, Inc., a
Delaware corporation (the "Warrantholder"); and

     WHEREAS, the Company desires to grant to Warrantholder, in consideration
for such Leases, the right to purchase shares of its Series D Preferred Stock;

     NOW, THEREFORE, in consideration of the Warrantholder executing and
delivering such Leases and in consideration of mutual covenants and agreements
contained herein, the Company and Warrantholder agree as follows:

1.   GRANT OF THE RIGHT TO PURCHASE PREFERRED STOCK.
     ----------------------------------------------

     For value received, the Company hereby grants to the Warrantholder, and the
Warrantholder is entitled, upon the terms and subject to the conditions
hereinafter set forth, to subscribe for and purchase from the Company that
number of fully paid and non assessable shares of the Company's Series D
Preferred Stock ("Preferred Stock") equal to Forty Six Thousand Five Hundred
Dollars ($46,000) ("Aggregate Purchase Price") divided by the Exercise Price
("Exercise Price"). The Exercise Price shall equal the numeric average of (a)
$3.49 per share (the price per share of Series D Preferred Stock) and (b) the
price per share in the next round ("Next Round"), so long as the Next Round
occurs within ninety (90) days of the date herein, provided however, if the Next
Round is not successfully completed within ninety (90) days of the date herein,
then the Exercise Price shall be equal to $3.49 per share. Next Round shall be
defined as (i) next private round of equity financing, (ii) the Company's
initial public offering (as defined below), (iii) merger or acquisition. The
number and purchase price of such shares are subject to adjustment as provided
in Section 8 hereof.

     Notwithstanding the term of this Warrant Agreement as set forth above, the
right to purchase Preferred Stock as granted shall expire, if not previously
exercised, immediately upon the closing of either of the following events:

     (i)  the issuance and sale of shares of Common Stock of the Company in the
Company's first public offering of securities for its own account pursuant to an
effective registration statement under the Securities Act of 1933, as amended
(the "Initial Public Offering"), provided that the underwriters so request that
the Warrantholder exercise at that time.

     (ii) upon the closing of a merger or consolidation of the Company with or
into another corporation when the Company is not the surviving corporation, or
the sale of all or substantially all of the Company's properties and assets to
any other person (the "Merger") provided in which Warrantholder realizes a value
for its shares equal to three (3) times the Exercise Price and acquirer so
request that the Warrantholder exercise at that time.

     The Company shall notify the Warrantholder if the Initial Public Offering
or Merger is proposed within a reasonable period of time prior to the filing of
a registration statement or the closing of the Merger and if the

                                      -1-
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Company fails to deliver such written notice within a reasonable period of time,
anything to the contrary in this Warrant Agreement notwithstanding, the rights
to purchase will not expire until ten (10) business days after the Company
delivers such notice to the Warrantholder. Such notice shall also contain such
details of the proposed Initial Public Offering or Merger as are reasonable in
the circumstances and notice that this Warrant Agreement is expected to expire
upon closing thereof. If such closing does not take place, the Company shall
promptly notify the Warrantholder that such proposed transaction has been
terminated. Anything to the contrary in this Warrant Agreement notwithstanding,
the Warrantholder may rescind any exercise of its purchase rights promptly after
such notice of termination of the proposed transaction if the exercise of
warrants occurred after the Company notified the Warrantholder that the Initial
Public Offering or Merger was proposed or if the exercise were otherwise
precipitated by such proposed Initial Public Offering or Merger. In the event of
such rescission, the Warrants will continue to be exercisable on the same terms
and conditions.

2.   TERM OF THE WARRANT AGREEMENT.
     -----------------------------

     Except as otherwise provided for herein, the term of this Warrant Agreement
and the right to purchase Preferred Stock as granted herein shall commence on
the Effective Date and shall be exercisable for a period of (i) seven (7) years.

3.   EXERCISE OF THE PURCHASE RIGHTS.
     -------------------------------

     The purchase rights set forth in this Warrant Agreement are exercisable by
the Warrantholder, in whole or in part, at any time, or from time to time, prior
to the expiration of the term set forth in Section 2 above, by tendering to the
Company at its principal office a notice of exercise in the form attached hereto
as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly
upon receipt of the Notice of Exercise and the payment of the purchase price in
accordance with the terms set forth below, and in no event later than twenty-one
(21) days thereafter, the Company shall issue to the Warrantholder a certificate
for the number of shares of Preferred Stock purchased and shall execute the
acknowledgment of exercise in the form attached hereto as Exhibit II (the
"Acknowledgment of Exercise") indicating the number of shares which remain
subject to future purchases, if any.

     The Exercise Price may be paid at the Warrantholder's election either (i)
by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as
determined below. If the Warrantholder elects the Net Issuance method, the
Company will issue Preferred Stock in accordance with the following formula:

                    X = Y(A-B)
                        ------
                          A

     Where:  X =  the number of shares of Preferred Stock to be issued to the
                         Warrantholder.

             Y =  the number of shares of Preferred Stock requested to be
                         exercised under this Warrant Agreement.

             A =  the fair market value of one (1) share of Preferred Stock.

             B =  the Exercise Price.

     For purposes of the above calculation, current fair market value of
Preferred Stock shall mean with respect to each share of Preferred Stock:

             (i)   if the exercise is in connection with an Initial Public
     Offering, and if the Company's Registration Statement relating to such
     public offering has been declared effective by the SEC, then the fair
     market value per share shall be the product of (x) the initial "Price to
     Public" specified in the final prospectus with respect to the offering and
     (y) the number of shares of Common Stock into which each share of Preferred
     Stock is convertible at the time of such exercise;

             (ii)  if this Warrant is exercised after, and not in connection
     with the Company's Initial Public Offering, and:

                                      -2-
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                 (a)  if traded on a securities exchange, the fair market value
          shall be deemed to be the product of (x) the average of the closing
          prices over a five (5) day period ending three days before the day the
          current fair market value of the securities is being determined and
          (y) the number of shares of Common Stock into which each share of
          Preferred Stock is convertible at the time of such exercise; or

                 (b)  if actively traded over-the-counter, the fair market value
          shall be deemed to be the product of (x) the average of the closing
          bid and asked prices quoted on the NASDAQ system (or similar system)
          over the five (5) day period ending three days before the day the
          current fair market value of the securities is being determined and
          (y) the number of shares of Common Stock into which each share of
          Preferred Stock is convertible at the time of such exercise;

          (iii)  if at any time the Common Stock is not listed on any securities
     exchange or quoted in the NASDAQ System or the over-the-counter market, the
     current fair market value of Preferred Stock shall be the product of (x)
     the highest price per share which the Company could obtain from a willing
     buyer (not a current employee or director) for shares of common Stock sold
     by the Company, from authorized but unissued shares as determined in good
     faith by its Board of Directors and (y) the number of shares of Common
     Stock into which each share of Preferred Stock is convertible at the time
     of such exercise, unless the Company shall become subject to a Merger,
     acquisition or other consolidation pursuant to which the Company is not the
     surviving party, in which case the fair market value of Preferred Stock
     shall be deemed to be the value received by the holders of the Company's
     Preferred Stock on a common equivalent basis pursuant to such Merger or
     acquisition.

     Upon partial exercise by either cash or Net Issuance, the Company shall
promptly issue an amended Warrant Agreement representing the remaining number of
shares purchasable hereunder. All other terms and conditions of such amended
Warrant Agreement shall be identical to those contained herein, including, but
not limited to the Effective Date hereof.

4.   RESERVATION OF SHARES.
     ---------------------

     (a)  Authorization and Reservation of Shares. During the term of this
          ---------------------------------------
Warrant Agreement, the Company will at all times have authorized and reserved a
sufficient number of shares of its Preferred Stock to provide for the exercise
of the rights to purchase Preferred Stock as provided for herein.

5.   NO FRACTIONAL SHARES OR SCRIP.
     -----------------------------

     No fractional shares or scrip representing fractional shares shall be
issued upon the exercise of the Warrant, but in lieu of such fractional shares
the Company shall make a cash payment therefor upon the basis of the Exercise
Price then in effect.

6.   NO RIGHTS AS SHAREHOLDER.
     ------------------------

     This Warrant Agreement does not entitle the Warrantholder to any voting
rights or other rights as a shareholder of the Company prior to the exercise of
the Warrant.

7.   WARRANTHOLDER REGISTRY.
     ----------------------

     The Company shall maintain a registry showing the name and address of the
registered holder of this Warrant Agreement.

8.   ADJUSTMENT RIGHTS.
     -----------------

     The purchase price per share and the number of shares of Preferred Stock
purchasable hereunder are subject to adjustment, as follows:

     (a)  Merger and Sale of Assets.  If at any time there shall be a capital
          -------------------------
reorganization of the shares of the Company's stock (other than a combination,
reclassification, exchange or subdivision of shares otherwise provided for
herein), or a merger or consolidation of the Company with or into another
corporation whether or not the Company is the surviving corporation, or the sale
of all or substantially all of the Company's properties and assets to

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any other person (hereinafter referred to as a "Merger Event"), then, as a part
of such Merger Event, lawful provision shall be made so that the Warrantholder
shall thereafter be entitled to receive, upon exercise of the Warrant, the
number of shares of preferred stock or other securities of the successor
corporation resulting from such Merger Event, equivalent in value to that which
would have been issuable if Warrantholder had exercised this Warrant immediately
prior to the Merger Event. In any such case, appropriate adjustment (as
determined in good faith by the Company's Board of Directors) shall be made in
the application of the provisions of this Warrant Agreement with respect to the
rights and interest of the Warrantholder after the Merger Event to the end that
the provisions of this Warrant Agreement (including adjustments of the Exercise
Price and number of shares of Preferred Stock purchasable) shall be applicable
to the greatest extent possible.

     (b)  Reclassification of Shares. If the Company at any time shall, by
          --------------------------
combination, reclassification, exchange or subdivision of securities or
otherwise, change any of the securities as to which purchase rights under this
Warrant Agreement exist into the same or a different number of securities of any
other class or classes, this Warrant Agreement shall thereafter represent the
right to acquire such number and kind of securities as would have been issuable
as the result of such change with respect to the securities which were subject
to the purchase rights under this Warrant Agreement immediately prior to such
combination, reclassification, exchange, subdivision or other change.

     (c)  Subdivision or Combination of Shares. If the Company at any time shall
          ------------------------------------
combine or subdivide its Preferred Stock, the Exercise Price shall be
proportionately decreased in the case of a subdivision, or proportionately
increased in the case of a combination.

     (d)  Stock Dividends.  If the Company at any time shall pay a dividend
          ---------------
payable in, or make any other distribution (except any distribution specifically
provided for in the foregoing subsections (a) or (b)) of the Company's stock,
then the Exercise Price shall be adjusted, from and after the record date of
such dividend or distribution, to that price determined by multiplying the
Exercise Price in effect immediately prior to such record date by a fraction (i)
the numerator of which shall be the total number of all shares of the Company's
stock outstanding immediately prior to such dividend or distribution, and (ii)
the denominator of which shall be the total number of all shares of the
Company's stock outstanding immediately after such dividend or distribution. The
Warrantholder shall thereafter be entitled to purchase, at the Exercise Price
resulting from such adjustment, the number of shares of Preferred Stock
(calculated to the nearest whole share) obtained by multiplying the Exercise
Price in effect immediately prior to such adjustment by the number of shares of
Preferred Stock issuable upon the exercise hereof immediately prior to such
adjustment and dividing the product thereof by the Exercise Price resulting from
such adjustment.

          (e)  Antidilution Rights. Additional antidilution rights applicable to
               -------------------
the Preferred Stock purchasable hereunder are as set forth in the Company's
Certificate of Incorporation, as amended through the Effective Date, a true and
complete copy of which is attached hereto as Exhibit IV (the "Charter"). The
Company shall promptly provide the Warrantholder with any restatement,
amendment, modification or waiver of the Charter. The Company shall provide
Warrantholder with prior written notice of any issuance of its stock or other
equity security to occur after the Effective Date of this Warrant, which notice
shall include (a) the price at which such stock or security is to be sold, (b)
the number of shares to be issued, and (c) such other information as necessary
for Warrantholder to determine if a dilutive event has occurred.

     (f)  Notice of Adjustments.  If: (i) the Company shall declare any dividend
          ---------------------
or distribution upon its stock, whether in cash, property, stock or other
securities; (ii) the Company shall offer for subscription prorata to the holders
of any class of its Preferred or other convertible stock any additional shares
of stock of any class or other rights; (iii) there shall be any Merger Event;
(iv) there shall be an initial public offering; or (v) there shall be any
voluntary dissolution, liquidation or winding up of the Company; then, in
connection with each such event, the Company shall send to the Warrantholder:
(A) at least twenty (20) days' prior written notice of the date on which the
books of the company shall close or a record shall be taken for such dividend,
distribution, subscription rights (specifying the date on which the holders of
Preferred Stock shall be entitled thereto) or for determining rights to vote in
respect of such Merger Event, dissolution, liquidation or winding up; (B) in the
case of any such Merger Event, dissolution, liquidation or winding up, at least
twenty (20) days' prior written notice of the date when the same shall take
place (and specifying the date on which the holders of Preferred Stock shall be
entitled to exchange their Preferred Stock for securities or other property
deliverable upon such Merger Event, dissolution, liquidation or winding up); and
(C) in the case of a public offering, the Company shall give the Warrantholder
at least twenty (20) days written notice prior to the proposed effective date
thereof.

     Each such written notice shall set forth, in reasonable detail, (i) the
event requiring the adjustment, (ii) the amount of the adjustment, (iii) the
method by which such adjustment was calculated, (iv) the Exercise Price, and (v)

                                      -4-
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the number of shares subject to purchase hereunder after giving effect to such
adjustment, and shall be given by overnight mail or certified mail, postage
prepaid, addressed to the Warrantholder, at the address as shown on the books of
the Company.

     (g)  Timely Notice. Failure to timely provide such notice required by
          -------------
subsection (f) above shall entitle Warrantholder to retain the benefit of the
applicable notice period notwithstanding anything to the contrary contained in
any insufficient notice received by Warrantholder. The notice period shall begin
on the date Warrantholder is given a written notice containing all the
information specified above.

9.   REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE COMPANY.
     --------------------------------------------------------

     (a)  Reservation of Preferred Stock. The Preferred Stock issuable upon
          ------------------------------
exercise of the Warrantholder's rights has been duly and validly reserved and,
when issued in accordance with the provisions of this Warrant Agreement, will be
validly issued, fully paid and non-assessable, and will be free of any taxes,
liens, charges or encumbrances of any nature whatsoever; provided, however, that
the Preferred Stock issuable pursuant to this Warrant Agreement may be subject
to restrictions on transfer under state and/or Federal securities laws. The
Company has made available to the Warrantholder true, correct and complete
copies of its Charter and Bylaws, as amended. The issuance of certificates for
shares of Preferred Stock upon exercise of the Warrant Agreement shall be made
without charge to the Warrantholder for any issuance tax in respect thereof, or
other cost incurred by the Company in connection with such exercise and the
related issuance of shares of Preferred Stock. The Company shall not be required
to pay any tax which may be payable in respect of any transfer involved and the
issuance and delivery of any certificate in a name other than that of the
Warrantholder.

     (b)  Due Authority. The execution and delivery by the Company of this
          -------------
Warrant Agreement and the performance of all obligations of the Company
hereunder, including the issuance to Warrantholder of the right to acquire the
shares of Preferred Stock, have been duly authorized by all necessary corporate
action on the part of the Company, and the Leases and this Warrant Agreement are
not inconsistent with the Company's Charter or Bylaws, do not contravene any law
or governmental rule, regulation or order applicable to it, do not and will not
contravene any provision of, or constitute a default under, any indenture,
mortgage, contract or other instrument to which it is a party or by which it is
bound, and the Leases and this Warrant Agreement constitute legal, valid and
binding agreements of the Company, enforceable in accordance with their
respective terms.

     (c)  Consents and Approvals. No consent or approval of, giving of notice
          ----------------------
to, registration with, or taking of any other action in respect of any state,
Federal or other governmental authority or agency is required with respect to
the execution, delivery and performance by the Company of its obligations under
this Warrant Agreement, except for the filing of notices pursuant to Regulation
D under the 1933 Act and any filing required by applicable state securities law,
which filings will be effective by the time required thereby.

     (d)  Issued Securities. All issued and outstanding shares of Common Stock,
          -----------------
Preferred Stock or any other securities of the Company have been duly authorized
and validly issued and are fully paid and nonassessable. All outstanding shares
of Common Stock, Preferred Stock and any other securities were issued in full
compliance with all Federal and state securities laws. In addition:

          (i)  The authorized capital of the Company consists of (A) 29,709,657
     shares of Common Stock, of which 2,222,457 shares are issued and
     outstanding, (B) 2,042,000 shares of Series A Preferred Stock, of which
     2,000,000 shares are issued and outstanding and are convertible into
     2,000,000 shares of Common Stock at a price of $0.50 per share, (C)
     2,0272,854 shares of Series B Preferred Stock, of which 2,202,854 shares
     are issued and outstanding and are convertible into 2,202,854 shares of
     Common Stock at a price of $0.70 per share, (D) 2,957,843 shares of Series
     C Preferred Stock, of which 2,944,460 shares are issued and outstanding and
     are convertible into 2,944,460 shares of Common Stock at a price of $1.87
     per share, and (E) 2,936,960 shares of Series D Preferred Stock, of which
     2,782,244 shares are issued and outstanding and are convertible into
     2,782,244 shares of Common Stock at a price of $3.49 per share.

          (ii) As of February 281, 1999, the Company has reserved 3,275,292
     shares of Common Stock for issuance under its 1996 and 1998 Stock Option
     Plan, under which 1,478,525 and 1,568,190 options are outstanding at an
     average price of $0.92 and $1.75 per share, respectively. There are no
     other options, warrants, conversion privileges or other rights presently
     outstanding to purchase or otherwise acquire any authorized but unissued
     shares of the Company's capital stock or other securities of the Company,
     except for Warrants A, B, and C.

                                      -5-
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          (iii)  In accordance with the Company's Certified Articles of
     Incorporation, no shareholder of the Company has preemptive rights to
     purchase new issuances of the Company's capital stock.

     (e)  Insurance. The Company has in full force and effect insurance
          ---------
policies, with extended coverage, insuring the Company and its property and
business against such losses and risks, and in such amounts, as are customary
for corporations engaged in a similar business and similarly situated and as
otherwise may be required pursuant to the terms of any other contract or
agreement.

     (f)  Other Commitments to Register Securities. Except as set forth in this
          ----------------------------------------
Warrant Agreement and Amended and Restated Investor Rights Agreement, the
Company is not, pursuant to the terms of any other agreement currently in
existence, under any obligation to register under the 1933 Act any of its
presently outstanding securities or any of its securities which may hereafter be
issued.

     (g)  Exempt Transaction. Subject to the accuracy of the Warrantholder's
          ------------------
representations in Section 10 hereof, the issuance of the Preferred Stock upon
exercise of this Warrant will constitute a transaction exempt from (i) the
registration requirements of Section 5 of the 1933 Act, in reliance upon Section
4(2) thereof, and (ii) the qualification requirements of the applicable state
securities laws.

     (h)  Compliance with Rule 144. At the written request of the Warrantholder,
          ------------------------
who proposes to sell Preferred Stock issuable upon the exercise of the Warrant
in compliance with Rule 144 promulgated by the Securities and Exchange
Commission, the Company shall furnish to the Warrantholder, within ten days
after receipt of such request, a written statement confirming the Company's
compliance with the filing requirements of the Securities and Exchange
Commission as set forth in such Rule, as such Rule may be amended from time to
time.

10.  REPRESENTATIONS AND COVENANTS OF THE WARRANTHOLDER.
     --------------------------------------------------

     This Warrant Agreement has been entered into by the Company in reliance
upon the following representations and covenants of the Warrantholder:

     (a)  Investment Purpose. The right to acquire Preferred Stock or the
          ------------------
Preferred Stock issuable upon exercise of the Warrantholder's rights contained
herein will be acquired for investment and not with a view to the sale or
distribution of any part thereof, and the Warrantholder has no present intention
of selling or engaging in any public distribution of the same except pursuant to
a registration or exemption.

     (b)  Private Issue. The Warrantholder understands (i) that the Preferred
          -------------
Stock issuable upon exercise of this Warrant is not registered under the 1933
Act or qualified under applicable state securities laws on the ground that the
issuance contemplated by this Warrant Agreement will be exempt from the
registration and qualifications requirements thereof, and (ii) that the
Company's reliance on such exemption is predicated on the representations set
forth in this Section 10.

     (c)  Disposition of Warrantholder's Rights. In no event will the
          -------------------------------------
Warrantholder make a disposition of any of its rights to acquire Preferred Stock
or Preferred Stock issuable upon exercise of such rights unless and until (i) it
shall have notified the Company of the proposed disposition, and (ii) if
requested by the Company, it shall have furnished the Company with an opinion of
counsel (which counsel may either be inside or outside counsel to the
Warrantholder) satisfactory to the Company and its counsel to the effect that
(A) appropriate action necessary for compliance with the 1933 Act has been
taken, or (B) an exemption from the registration requirements of the 1933 Act is
available. Notwithstanding the foregoing, the restrictions imposed upon the
transferability of any of its rights to acquire Preferred Stock or Preferred
Stock issuable on the exercise of such rights do not apply to transfers from the
beneficial owner of any of the aforementioned securities to its nominee or from
such nominee to its beneficial owner, and shall terminate as to any particular
share of Preferred Stock when (1) such security shall have been effectively
registered under the 1933 Act and sold by the holder thereof in accordance with
such registration or (2) such security shall have been sold without registration
in compliance with Rule 144 under the 1933 Act, or (3) a letter shall have been
issued to the Warrantholder at its request by the staff of the Securities and
Exchange Commission or a ruling shall have been issued to the Warrantholder at
its request by such Commission stating that no action shall be recommended by
such staff or taken by such Commission, as the case may be, if such security is
transferred without registration under the 1933 Act in accordance with the
conditions set forth in such letter or ruling and such letter or ruling
specifies that no subsequent restrictions on transfer are required. Whenever the
restrictions imposed hereunder shall terminate, as hereinabove provided, the
Warrantholder or holder of a share of Preferred Stock then outstanding as to
which such restrictions have terminated shall be entitled to receive from the
Company, without

                                      -6-
<PAGE>

expense to such holder, one or more new certificates for the Warrant or for such
shares of Preferred Stock not bearing any restrictive legend.

     (d)  Financial Risk. The Warrantholder has such knowledge and experience in
          --------------
financial and business matters as to be capable of evaluating the merits and
risks of its investment, and has the ability to bear the economic risks of its
investment. Warrantholder is an investor in securities of companies in the
development stage and acknowledges that it is able to fend for itself and can
bear the economic risk of its investment.

     (e)  Risk of No Registration. The Warrantholder understands that if the
          -----------------------
Company does not register with the Securities and Exchange Commission pursuant
to Section 12 of the 1933 Act (the "1933 Act"), or file reports pursuant to
Section 15(d), of the 1934 Act, as amended, or if a registration statement
covering the securities under the 1933 Act is not in effect when it desires to
sell (i) the rights to purchase Preferred Stock pursuant to this Warrant
Agreement, or (ii) the Preferred Stock issuable upon exercise of the right to
purchase, it may be required to hold such securities for an indefinite period.
The Warrantholder also understands that any sale of its rights of the
Warrantholder to purchase Preferred Stock or Preferred Stock which might be made
by it in reliance upon Rule 144 under the 1933 Act may be made only in
accordance with the terms and conditions of that Rule.

     (f)  Accredited Investor. Warrantholder is an "accredited investor" within
          -------------------
the meaning of the Securities and Exchange Rule 501 of Regulation D, as
presently in effect.

     (g)  Legends. It is understood that the Preferred Stock issuable upon
          -------
exercise of the rights under this Warrant Agreement may bear one or all of the
following legends:

          (i)  THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
          ACT OF 1933, AS AMENDED. THEY MAY NOT BE SOLD, OFFERED FOR SALE,
          PLEDGED OR HYPOTHECATED IN THE ABSENCE OF A REGISTRATION STATEMENT IN
          EFFECT WITH RESPECT TO THE SECURITIES UNDER SUCH ACT OR AN OPINION OF
          COUNSEL (WHICH MAY BE IN-HOUSE COUNSEL) SATISFACTORY TO THE COMPANY
          THAT SUCH REGISTRATION IS NOT REQUIRED OR UNLESS SOLD PURSUANT TO RULE
          144 OF SUCH ACT.

          (ii) Any legend required by State securities laws.

11.  TRANSFERS.
     ---------

     Subject to the terms and conditions contained in Section 10 hereof, this
Warrant Agreement and all rights hereunder are transferable in whole or in part
by the Warrantholder and any successor transferee, provided, however, in no
event shall the number of transfers of the rights and interests in all of the
Warrants exceed three (3) transfers. The transfer shall be recorded on the books
of the Company upon receipt by the Company of a notice of transfer in the form
attached hereto as Exhibit III (the "Transfer Notice"), at its principal offices
and the payment to the company of all transfer taxes and other governmental
charges imposed on such transfer.

12.  MARKET STANDOFF
     ---------------

     Each holder of the Preferred Stock issued upon exercise of the rights
     hereunder agrees that, during the period specified by the underwriter or
     underwriters of Common Stock (or other securities) of the Company,
     following the effective date of a registration statement of the Company
     filed under the 1933 Act, it shall not, to the extent requested by such
     underwriter, directly or indirectly sell, offer or contract to sell
     (including, without limitation, any short sale) grant any option to
     purchase or otherwise transfer or dispose of (other than to donees who
     agree to be similarly bound) any securities of the Company at any time
     during such period except Preferred Stock included in such registration.

13.  MISCELLANEOUS.
     --------------

     (a)  Effective Date. The provisions of this Warrant Agreement shall be
          --------------
construed and shall be given effect in all respects as if it had been executed
and delivered by the company on the date hereof. This Warrant Agreement shall be
binding upon any successors or assigns of the Company.

                                      -7-
<PAGE>

     (b)  Attorney's Fees. In any litigation, arbitration or court proceeding
          ----------------
between the Company and the Warrantholder relating hereto, the prevailing party
shall be entitled to attorneys' fees and expenses and all costs of proceedings
incurred in enforcing this Warrant Agreement.

     (c)  Governing Law. This Warrant Agreement shall be governed by and
          -------------
construed for all purposes under and in accordance with the laws of the State of
California.

     (d)  Counterparts. This Warrant Agreement may be executed in two or more
          ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

     (e)  Notices. Any notice required or permitted hereunder shall be given in
          -------
writing and shall be deemed effectively given upon personal delivery, facsimile
transmission (provided that the original is sent by personal delivery or mail as
hereinafter set forth) or seven (7) days after deposit in the United States
mail, by registered or certified mail, addressed (i) to the Warrantholder at
6111 North River Road, Rosemont, Illinois 60018, Attention: Venture Lease
Administration, cc: Legal Department, Attention.: General Counsel, (and/or, if
by facsimile, (847) 518-5465 and (847)518-5088) and (ii) to the Company at 990
Commercial Street, San Carlos, CA 94070, Attention: Joan Walsh (and/or if by
facsimile, (650) 508-2490) or at such other address as any such party may
subsequently designate by written notice to the other party.

     (f)  Remedies. In the event of any default hereunder, the non-defaulting
          --------
party may proceed to protect and enforce its rights either by suit in equity
and/or by action at law, including but not limited to an action for damages as a
result of any such default, and/or an action for specific performance for any
default where Warrantholder will not have an adequate remedy at law and where
damages will not be readily ascertainable. The Company expressly agrees that it
shall not oppose an application by the Warrantholder or any other person
entitled to the benefit of this Agreement requiring specific performance of any
or all provisions hereof or enjoining the Company from continuing to commit any
such breach of this Agreement.

     (g)  No Impairment of Rights. The Company will not, by amendment of its
          -----------------------
Charter or through any other means, avoid or seek to avoid the observance or
performance of any of the terms of this Warrant, but will at all times in good
faith assist in the carrying out of all such terms and in the taking of all such
actions as may be necessary or appropriate in order to protect the rights of the
Warrantholder against impairment.

     (h)  Survival.  The representations, warranties, covenants and conditions
          --------
of the respective parties contained herein or made pursuant to this Warrant
Agreement shall survive the execution and delivery of this Warrant Agreement.

     (i)  Severability. In the event any one or more of the provisions of this
          ------------
Warrant Agreement shall for any reason be held invalid, illegal or
unenforceable, the remaining provisions of this Warrant Agreement shall be
unimpaired, and the invalid, illegal or unenforceable provision shall be
replaced by a mutually acceptable valid, legal and enforceable provision, which
comes closest to the intention of the parties underlying the invalid, illegal or
unenforceable provision.

     (j)  Amendments. Any provision of this Warrant Agreement may be amended by
          ----------
a written instrument signed by the Company and by the Warrantholder.

     (k)  Additional Documents. The Company, upon execution of this Warrant
          --------------------
Agreement, shall provide the Warrantholder with certified resolutions with
respect to the representations, warranties and covenants set forth in
subparagraphs (a) through (d), (f) and (g) of Section 9 above. The Company shall
also supply such other documents as the Warrantholder may from time to time
reasonably request.

                  REMAINDER OF PAGE LEFT INTENTIONALLY BLANK

                                      -8-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Warrant Agreement
to be executed by its officers thereunto duly authorized as of the Effective
Date.

                         Company: RELEASE SOFTWARE CORPORATION

                         By:    /s/ Joan P. Walsh
                               -----------------------------

                         Title: CFO
                               -----------------------------

                         Warrantholder: COMDISCO, INC.

                         By:    /s/ Jill C. Hanses
                               ------------------------------

                         Title: JILL C. HANSES
                               ------------------------------
                                SENIOR VICE PRESIDENT

                                      -9-
<PAGE>

                                   EXHIBIT I

                              NOTICE OF EXERCISE

To:  ________________________

(1)  The undersigned Warrantholder hereby elects to purchase ______ shares of
     the Series D Preferred Stock of ______________, pursuant to the terms of
     the Warrant Agreement dated the _______ day of __________________________,
     19__ (the "Warrant Agreement") between ____________________ and the
     Warrantholder, and tenders herewith payment of the purchase price for such
     shares in full, together with all applicable transfer taxes, if any.

(2)  In exercising its rights to purchase the Series D Preferred Stock of
     _____________________, the undersigned hereby confirms and acknowledges the
     investment representations and warranties made in Section 10 of the Warrant
     Agreement.

(3)  Please issue a certificate or certificates representing said shares of
     Series D Preferred Stock in the name of the undersigned or in such other
     name as is specified below.

__________________________________
(Name)

__________________________________
(Address)

Warrantholder: COMDISCO, INC.

By:     __________________________

Title:  __________________________

Date:   __________________________

                                      -10-
<PAGE>

                                  EXHIBIT II

                          ACKNOWLEDGMENT OF EXERCISE

     The undersigned _____________________________, hereby acknowledge receipt
of the "Notice of Exercise" from Comdisco, Inc., to purchase ______ shares of
the Series D Preferred Stock of _______________, pursuant to the terms of the
Warrant Agreement, and further acknowledges that ______ shares remain subject to
purchase under the terms of the Warrant Agreement.

                                   Company:

                                   By:     _________________________

                                   Title:  _________________________

                                   Date:   _________________________

                                      -11-
<PAGE>

                                  EXHIBIT III

                                TRANSFER NOTICE

(To transfer or assign the foregoing Warrant Agreement execute this form and
supply required information. Do not use this form to purchase shares.)

     FOR VALUE RECEIVED, the foregoing Warrant Agreement and all rights
evidenced thereby are hereby transferred and assigned to

________________________________________________________________
(Please Print)

whose address is _______________________________________________

________________________________________________________________

                       Dated: __________________________________

                       Holder's Signature: _____________________

                       Holder's Address:   _____________________

                       _________________________________________

Signature Guaranteed:  _________________________________________

NOTE:  The signature to this Transfer Notice must correspond with the name as it
       appears on the face of the Warrant Agreement, without alteration or
       enlargement or any change whatever. Officers of corporations and those
       acting in a fiduciary or other representative capacity should file proper
       evidence of authority to assign the foregoing Warrant Agreement.

                                      -12-
<PAGE>

                                  EXHIBIT IV

             AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF
                         RELEASE SOFTWARE CORPORATION

          The undersigned, Matthew Klein and James L. Brock, hereby certify
that:

          ONE: They are the duly elected and acting President and Secretary,
respectively, of Release Software Corporation, a Delaware corporation, which is
the present name of the corporation.  The name under which said corporation was
originally incorporated is Digital Money, Inc., and the date of filing of said
corporation's original certificate of incorporation with the Delaware Secretary
of State is March 28, 1994.

          TWO: The Certificate of Incorporation of said corporation shall be
amended and restated to read in full as follows:

                                   ARTICLE I

     The name of this corporation is Release Software Corporation.

                                  ARTICLE II

     The address of the corporation's registered office in the State of Delaware
is 1013 Centre Road, in the City of Wilmington, County of New Castle, 19805.
The name of its registered agent at such address is Corporate Agents, Inc.

                                  ARTICLE III

     The purpose of the corporation is to engage in any lawful act or activity
for which corporations may be organized under the General Corporation Law of
Delaware.

                                  ARTICLE IV

     A.   Classes of Stock.  This corporation is authorized to issue two classes
          ----------------
of stock to be designated, respectively, "Common Stock" and "Preferred Stock."
The total number of shares which the corporation is authorized to issue is
Twenty-Nine Million Seven Hundred Nine Thousand Six Hundred Fifty-Seven
(29,709,657) shares.  Nineteen Million Five Hundred (19,500,000) shares shall be
Common Stock, par value $0.001 per share, and Ten Million Two Hundred Nine
                         -----
Thousand Six Hundred Fifty-Seven (10,209,657) shares shall be designated
Preferred Stock, par value $0.001 per share, of which Two Million Forty Two
                            -----
Thousand (2,042,000) shares have been designated "Series A Preferred Stock,"
Two Million Two Hundred Seventy Two Thousand Eight Hundred Fifty Four
(2,272,854) shares have been designated "Series B Preferred Stock," Two Million
Nine Hundred Fifty Seven Thousand Eight Hundred Forty Three (2,957,843) shares
have been designated "Series C Preferred Stock" and Two Million Nine Hundred
Thirty Six Thousand Nine Hundred Sixty (2,936,960) shares have been designated
"Series D Preferred Stock."

                                                               STATE OF DELAWARE
                                                              SECRETARY OF STATE
                                                        DIVISION OF CORPORATIONS
                                                       FILED 03:00 PM 06/22/1998
                                                             981241108 - 2389257
<PAGE>

     B.   Rights, Preferences and Restrictions of Preferred Stock.  The rights,
          -------------------------------------------------------
preferences, restrictions and other matters relating to the Preferred Stock are
as follows:

          1.   Dividend Provisions.
               -------------------

               (a)  The holders of shares of Series A Preferred Stock, Series B
Preferred Stock, Series C Preferred Stock and Series D Preferred Stock shall be
entitled to received dividends, out of any assets legally available therefor,
prior and in preference to any declaration or payment of any dividend (payable
other than in Common Stock or other securities and rights convertible into or
entitling the holder thereof to receive, directly or indirectly, additional
shares of Common Stock of this corporation) on the Common Stock of this
corporation, at the rate of 8% of the Original Series A Issue Price (as defined
below) per annum, 8% of the Original Series B Issue Price (as defined below) per
annum, 8% of the Original Series C Issue Price (as defined below) and 8% of the
Original Series D Issue Price (as defined below) per annum, respectively, (i)
payable quarterly when, as and if declared by the Board of Directors or (ii),
with respect to the Series D Preferred Stock, in the event of any liquidation,
dissolution or winding up of this corporation. Such dividends shall be non
cumulative with respect to the Series A Preferred Stock, Series B Preferred
Stock and Series C Preferred Stock, and shall be cumulative with respect to the
Series D Preferred Stock.

               (b)  After payment of such dividends, any additional dividends or
distributions shall be distributed among all holders of Common Stock and all
holders of Series D Preferred Stock pro rata based on the number of shares of
Common Stock held by each (assuming conversion of all such Series D Preferred
Stock).

          2.   Liquidation Preference.
               ----------------------

               (a)  In the event of any liquidation, dissolution or winding up
of this corporation, either voluntary or involuntary, the holders of Series D
Preferred Stock shall be entitled to receive, prior and in preference to any
distribution of any of the assets of this corporation to the holders of Series A
Preferred Stock, Series B Preferred Stock, Series C Preferred Stock or Common
Stock by reason of their ownership thereof, an amount per share equal to the sum
of (i) $3.49 for each outstanding share of Series D Preferred Stock (the
"Original Series D Issue Price") and (ii) all accrued but unpaid dividends on
such share. If upon the occurrence of such event, the assets and funds thus
distributed among the holders of the Series D Preferred Stock shall be
insufficient to permit the payment to such holders of the full aforesaid
preferential amounts, then the entire assets and funds of the corporation
legally available for distribution shall be distributed ratably among the
holders of the Series D Preferred Stock pro rata based upon the number of shares
of Series D Preferred Stock held by them.

               (b)  Upon the completion of the distribution required by
subparagraph (a) of this Section 2, the holders of Series A Preferred Stock,
Series B Preferred Stock and Series C Preferred Stock shall be entitled to
receive, prior and in preference to any distribution of any of the assets of
this corporation to the holders of Common Stock by reason of their ownership
thereof, (A) in the case of the Series A Preferred Stock, an amount per share
equal to the sum of (i) $.50 for each outstanding share of Series A Preferred
Stock (the "Original

                                      -2-
<PAGE>

Series A Issue Price") and (ii) an amount equal to the declared but unpaid
dividends on such share; (B) in the case of Series B Preferred Stock, an amount
per share equal to the sum of (i) $.70 for each outstanding share of Series B
Preferred Stock (the "Original Series B Issue Price") and (ii) an amount equal
to declared but unpaid dividends on such share; and (C) in the case of the
Series C Preferred Stock, an amount per share equal to the sum of (i) $1.868 for
each outstanding share of Series C Preferred Stock (the "Original Series C Issue
Price") and (ii) an amount equal to declared but unpaid dividends on such share.
If upon the occurrence of such event, the assets and funds thus distributed
among the holders of the Preferred Stock shall be insufficient to permit the
payment to such holders of the full aforesaid preferential amounts, then the
entire assets and funds of the corporation legally available for distribution
shall be distributed ratably among the holders of the Series Preferred Stock,
Series B Preferred Stock and Series C Preferred Stock in proportion to the
aggregate preferential amounts owed such holders in respect of such shares.

               (c)  (i)    If a liquidation, dissolution or winding up of this
corporation occurs prior to January 31, 2001, then upon the completion of the
distribution required by subparagraphs (a) and (b) of this Section 2, the
remaining assets of the corporation available for distribution to stockholders
shall be distributed among the holders of Series A Preferred Stock, Series B
Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Common
Stock pro rata based on the number of shares of Common Stock held by each
(assuming conversion of all such Preferred Stock).

                    (ii)   If a liquidation, dissolution or winding up of this
corporation occurs on or after January 31, 2001, then upon the completion of the
distribution required by subparagraphs (a) and (b) of this Section 2, the
holders of the Series D Preferred Stock and Common Stock of this corporation
shall receive all of the remaining assets of this corporation pro rata based on
the number of shares of Common Stock held by each (assuming conversion of all
such Series D Preferred Stock).

               (d)  (i)    For purposes of this Section 2, unless otherwise
agreed by holders of at least seventy percent (70%) of the then outstanding
shares of Preferred Stock (voting together as a single class and on an as-
converted basis), a liquidation, dissolution or winding up of this corporation
shall be deemed to be occasioned by, or to include, (i) the acquisition of this
corporation or a change in control of this corporation by another entity by
means of any transaction or series of related transactions (including, without
limitation, any reorganization, merger or consolidation, but excluding any
merger effected primarily for the purpose of changing the domicile of this
corporation) that results in the transfer of fifty percent (50%) or more of the
outstanding voting power of this corporation; or (ii) a sale of all or
substantially all of the assets of this corporation.

                    (ii)   In any such events, if the consideration received by
the corporation is other than cash, its value will be deemed its fair market
value. Any securities shall be valued as follows:

                                      -3-
<PAGE>

                     (A)  Securities not subject to investment letter or other
similar restrictions on free marketability:

                              (1)  If traded on a securities exchange or through
NASDAQ-NMS, the value shall be deemed to be the average of the closing prices of
the securities on such exchange over the thirty (30) day period ending three (3)
days prior to the closing;

                              (2)  If actively traded over-the-counter, the
value shall be deemed to be the average of the closing bid or sale prices
(whichever is applicable) over the thirty (30) day period ending three (3) days
prior to the closing; and

                              (3)  If there is no active public market, the
value shall be the fair market value thereof, as mutually determined by the
corporation and the holders of at least a majority of the voting power of all
then outstanding shares of Preferred Stock.

                     (B) The method of valuation of securities subject to
investment letter or other restrictions on free marketability (other than
restrictions arising solely by virtue of a stockholder's status as an affiliate
or former affiliate) shall be to make an appropriate discount from the market
value determined as above in (A)(1), (2) or (3) to reflect the approximate fair
market value thereof, as mutually determined by the corporation and the holders
of at least a majority of the voting power of all then outstanding shares of
such Preferred Stock.

               (iii) In the event the requirements of this subsection 2(c) are
not complied with, this corporation shall forthwith either:

                     (A) cause such closing to be postponed until such time
as the requirements of this Section 2 have been complied with; or

                     (B) cancel such transaction, in which event the rights,
preferences and privileges of the holders of Preferred Stock shall revert to and
be the same as such rights, preferences and privileges existing immediately
prior to the date of the first notice referred to in subsection 2(d)(iv) hereof.

               (iv) The corporation shall give each holder of record of
Preferred Stock written notice of such impending transaction not later than
twenty (20) days prior to the stockholders' meeting called to approve such
transaction, or twenty (20) days prior to the closing of such transaction,
whichever is earlier, and shall also notify such holders in writing of the final
approval of such transaction. The first of such notices shall describe the
material terms and conditions of the impending transaction and the provisions of
this Section 2, and the corporation shall thereafter give such holders prompt
notice of any material changes. The transaction shall in no event take place
sooner than twenty (20) days after the corporation has given the first notice
provided for herein or soon than ten (10) days after the corporation has given
notice of any material changes provided for herein; provided, however, that such
periods may be shortened upon the written consent of the holders of Preferred
Stock that are entitled to

                                      -4-
<PAGE>

such notice rights or similar notice rights and that represent at least a
majority of the voting power of all then outstanding shares of such Preferred
Stock.

          3.   Conversion. The holders of the Preferred Stock shall have
               ----------
conversion rights as follows (the "Conversion Rights"):

               (a)  Right to Convert. Each share of Preferred Stock shall be
                    ----------------
convertible, at the option of the holder thereof, at any time after the date of
issuance of such share, at the office of this corporation or any transfer agent
for such stock, into such number of fully paid and nonassesable shares of Common
Stock as is determined by dividing the Original Series A Issue Price for the
Series A Preferred Stock, the Original Series B Issue Price for the Series B
Preferred Stock, the Original Series C Issue Price for the Series C Preferred
Stock or the Original Series D Issue Price for the Series D Preferred Stock by
the Conversion Price applicable to such series of Preferred Stock, determined as
hereafter provided, in effect on the date the certificate is surrendered for
conversion. The initial Conversion Price per share for shares of Series A
Preferred Stock shall be the Original Series A Issue Price; the initial
Conversion Price per share for shares of Series B Preferred Stock shall be the
Original Series B Issue Price; the initial Conversion Price per share for shares
of Series C Preferred Stock shall be the Original Series C Issue Price; and the
initial Conversion Price per share for shares of Series D Preferred Stock shall
be the Original Series D Issue Price; provided, however, that the Conversion
Price for each series of Preferred Stock shall be subject to adjustment as set
forth in subsection 3(d).

               (b)  Automatic Conversion. Each share of Series A Preferred
                    --------------------
Stock, Series B Preferred Stock, Series C Preferred Stock and Series D Preferred
Stock shall automatically be converted into shares of Common Stock at the
Conversion Price at the time in effect for such series of Preferred Stock
immediately upon the earlier of (i) the corporation's sale of its Common Stock
in an underwritten public offering pursuant to a registration statement under
the Securities Act of 1933, as amended, at a public offering price (prior to
underwriting commissions and expenses) of at least $15,000,000 in the aggregate,
before deduction of underwriting discounts and registration expenses, at a per
share offering price to the public of at least 150% of the Original Series D
Issue Price (as adjusted for stock splits, reverse stock splits,
recapitalizations and similar events) ( a "Qualified IPO"), (ii) upon the
                                           -------------
corporation's sale of its Common Stock in an underwritten public offering
pursuant to a registration statement under the Securities Act of 1933, as
amended, at a public offering price (prior to underwriting commissions and
expenses) of at least $15,000,000 in the aggregate, before deduction of
underwriting discounts and registration expenses, at a per share offering price
to the public of at least 120% of the Original Series D Issue Price (as adjusted
for stock splits, reverse stock splits, recapitalizations and similar events);
provided, however, that the automatic conversion of the shares of Preferred
--------  -------
Stock upon such public offering was approved by the written consent of the
holders of at least seventy percent (70%) of the then outstanding shares of
Preferred Stock, voting together as a single class and on an as-converted basis,
or (iii) the date specified by written consent or agreement of (A) the holders
of at least seventy percent (70%) of the then outstanding shares of Preferred
Stock, voting together as a single class and on an as-converted basis and (B)
the holders of at least fifty percent (50%) of the then outstanding shares of
Series D Preferred Stock, voting together as a separate class.

                                      -5-
<PAGE>

          (c)  Mechanics of Conversion. Before any holder of Preferred Stock
               -----------------------
shall be entitled to convert the same into shares of Common Stock, he shall
surrender the certificate or certificates therefor, duly endorsed, at the office
of this corporation or of any transfer agent for the Preferred Stock, and shall
give written notice to this corporation at its principal corporate office, of
the election to convert the same and shall state therein the name or names in
which the certificate or certificates for shares of Common Stock are to be
issued. This corporation shall, as soon as practicable thereafter, issue and
deliver at such office to such holder of Preferred Stock, or to the nominee or
nominees of such holder, a certificate or certificates for the number of shares
of Common Stock to which such holder shall be entitled as aforesaid. Such
conversion shall be deemed to have been made immediately prior to the close of
business on the date of such surrender of the shares of Preferred Stock to be
converted, and the person or persons entitled to receive the shares of Common
Stock issuable upon such conversion shall be treated for all purposes as the
record holder or holders of such shares of Common Stock as of such date. If the
conversion is in connection with an underwritten offering of securities
registered pursuant to the Securities Act of 1933, the conversion shall be
conditioned upon the closing with the underwriters of the sale of securities
pursuant to such offering, in which event the person(s) entitled to receive the
Common Stock upon conversion of the Preferred Stock shall not be deemed to have
converted such Preferred Stock until immediately prior to the closing of such
sale of securities.

          (d)  Conversion Price Adjustments of Preferred Stock for Certain
               -----------------------------------------------------------
Dilutive Issuances, Splits and Combinations. The Conversion Price of the
-------------------------------------------
Preferred Stock shall be subject to adjustment from time to time as follows:

               (i)  (A)  If the corporation shall issue, after the date upon
which any shares of Series A Preferred Stock, Series B Preferred Stock, Series C
Preferred Stock or Series D Preferred Stock were first issued (the "Purchase
Date" with respect to such series of Preferred Stock), any Additional Stock (as
defined below) without consideration or for a consideration per share less than
the Conversion Price for such series in effect immediately prior to the issuance
of such Additional Stock, the Conversion Price for such series in effect
immediately prior to each such issuance shall forthwith (except as otherwise
provided in this clause (i)) be adjusted to a price determined by multiplying
such Conversion Price by a fraction, the numerator of which shall be the number
of shares of Common Stock outstanding immediately prior to such issuance plus
the number of shares of Common Stock that the aggregate consideration received
by the corporation for such issuance would purchase at such Conversion Price;
and the denominator of which shall be the number of shares of Common Stock
outstanding immediately prior to such issuance plus the number of shares of such
Additional Stock so issued; provided that for the purposes of this subsection
3(d)(i)(A), all shares of Common Stock issuable upon conversion and/or exercise
of any outstanding Preferred Stock, options, warrants or convertible securities,
shall be deemed to be outstanding.

                    (B)  No adjustment of the Conversion Price of any series of
Preferred Stock shall be made in an amount less than one cent per share,
provided that any adjustments which are not required to be made by reason of
this sentence shall be carried forward and shall be either taken into account in
any subsequent adjustment made prior to three (3) years

                                      -6-
<PAGE>

from the date of the event giving rise to the adjustment being carried forward,
or shall be made at the end of three (3) years from the date of the event giving
rise to the adjustment being carried forward. Except to the limited extent
provided for in subsections (E)(3) and (E)(4), no adjustment of such Conversion
Price pursuant to this subsection 3(d)(i) shall have the effect of increasing
the Conversion Price above the Conversion Price in effect immediately prior to
such adjustment.

                    (C)  In the case of the issuance of Common Stock for cash,
the consideration shall be deemed to be the amount of cash paid before deducting
any reasonable discounts, commissions or other expenses allowed, paid or
incurred by this corporation for any underwriting or otherwise in connection
with the issuance and sale thereof.

                    (D)  In the case of the issuance of the Common Stock for a
consideration in whole or in part other than cash the consideration other than
cash shall be deemed to be the fair value thereof as determined by the Board of
Directors irrespective of any accounting treatment.

                    (E)  In the case of the issuance (whether before, on or
after the applicable Purchase Date) of options to purchase or rights to
subscribe for Common Stock, securities by their terms convertible into or
exchangeable for Common Stock or options to purchase or rights to subscribe for
such convertible or exchangeable securities, the following provisions shall
apply for all purposes of subsection 3(d)(t) and subsection 3(d) (ii):

                         (1)  The aggregate maximum number of shares of Common
Stock deliverable upon exercise (assuming the satisfaction of any conditions to
exercisability, including without limitation, the passage of time, but without
taking into account potential antidilution adjustments) of such options to
purchase or rights to subscribe for Common Stock shall be deemed to have been
issued at the time such options or rights were issued and for a consideration
equal to the consideration (determined in the manner provided in subsections 3
(d)(i)(C) and (d)(i)(D)), if any, received by the corporation upon the issuance
of such options or rights plus the minimum exercise price provided in such
options or rights for the Common Stock covered thereby.

                         (2)  The aggregate maximum number of shares of Common
Stock deliverable upon conversion of or in exchange (assuming the satisfaction
of any conditions to exercisability, including without limitation, the passage
of time, but without taking into account potential antidilution adjustments) for
any such convertible or exchangeable securities or upon the exercise of options
to purchase or rights to subscribe for such convertible or exchangeable
securities and subsequent conversion or exchange thereof shall be deemed to have
been issued at the time such securities were issued or such options or rights
were issued and for a consideration equal to the consideration, if any, received
by the corporation for any such securities and related options or rights
(excluding any cash received on account of accrued interest or accrued
dividends), plus the minimum additional consideration, if any, to be received by
the corporation upon the conversion or exchange of such securities or the
exercise of any

                                      -7-
<PAGE>

related options or rights (the consideration in each case to be determined in
the manner provided in subsections 3(d)(i)(C) and (d)(i)(D)).

                         (3)  In the event of any change in the number of shares
of Common Stock deliverable or in the consideration payable to this corporation
upon exercise of such options or rights or upon conversion of or in exchange for
such convertible or exchangeable securities, including, but not limited to, a
change resulting from the antidilution provisions thereof, the Conversion Price
of the Preferred Stock, to the extent in any way affected by or computed using
such options, rights or securities, shall be recomputed to reflect such change,
but no further adjustment shall be made for the actual issuance of Common Stock
or any payment of such consideration upon the exercise of any such options or
rights or the conversion or exchange of such securities.

                         (4)  Upon the expiration of any such options or rights,
the termination of any such rights to convert or exchange or the expiration of
any options or rights related to such convertible or exchangeable securities,
the Conversion Price of the Preferred Stock, to the extent in any way affected
by or computed using such options, rights, or securities or options or rights
related to such securities, shall be recomputed to reflect the issuance of only
the number of shares of Common Stock (and convertible or exchangeable securities
which remain in effect) actually issued upon the exercise of such options or
rights, upon the conversion or exchange of such securities or upon the exercise
of the options or rights related to such securities.

                         (5)  The number of shares of Common Stock deemed issued
and the consideration deemed paid therefor pursuant to subsections 3(d)(i)(E)(1)
and (2) shall be appropriately adjusted to reflect any change, termination or
expiration of the type described in either subsection 3(d)(i)(E)(3) or (4).

               (ii) "Additional Stock" shall mean any shares of Common Stock
issued (or deemed to have been issued pursuant to subsection 3(d)(i)(E)) by this
corporation after the Purchase Date other than:

                    (A)  Common Stock issued pursuant to a transaction described
in subsection 3(d)(iii) hereof;

                    (B)  up to an aggregate of 2,275,292 shares of Common Stock
(or such greater number as shall be approved by this corporation's Board of
Directors) issuable or issued to employees consultants, or directors of this
corporation directly or pursuant to a stock option plan or restricted stock plan
approved by the Board of Directors of this corporation;

                    (C)  Capital stock or warrants or options to purchase
capital stock issued to vendors or issued in connection with bona fide equipment
lease financings, credit facilities, strategic licensing transactions, or
similar transactions, the terms of which are approved by the Board of Directors;
provided, however, that the aggregate amount of capital stock issued, or
--------  -------
issuable upon the exercise of warrants or options issued, pursuant to this

                                      -8-
<PAGE>

subsection 3(d)(ii)(C) shall not exceed five percent (5%) of this corporation's
capital stock (on a fully-diluted basis assuming exercise of all options and
warrants and conversion of all convertible securities).

                         (D)  Capital stock or warrants or options to purchase
capital stock issued in connection with bona fide acquisitions or mergers, the
terms of which are approved by at least two-thirds of the members of the Board
of Directors of this Corporation;

                         (E)  Capital stock or warrants or options to purchase
capital stock the issuance of which is determined to be excluded from the
definition of "Additional Stock" upon the written consent of the holders of at
least (1) seventy percent (70%) of the then outstanding Preferred Stock and (2)
fifty percent (50%) of the then outstanding Series D Preferred Stock (without
any requirement of an amendment to this Amended and Restated Certificate of
Incorporation); and

                         (F)  Shares of Common Stock issued or issuable upon
conversion of Preferred Stock.

                  (iii)  In the event the corporation should at any time or from
time to time after the Purchase Date fix a record date for the effectuation of a
split or subdivision of the outstanding shares of Common Stock or the
determination of holders of Common Stock entitled to receive a dividend or other
distribution payable in additional shares of Common Stock or other securities or
rights convertible into, or entitling the holder thereof to receive directly or
indirectly, additional shares of Common Stock (hereinafter referred to as
"Common Stock Equivalents") without payment of any consideration by such holder
for the additional shares of Common Stock or the Common Stock Equivalents
(including the additional shares of Common Stock issuable upon conversion or
exercise thereof), then, as of such record date (or the date of such dividend
distribution, split or subdivision if no record date is fixed), the Conversion
Price of the Series A Preferred Stock and Series B Preferred Stock shall be
appropriately decreased so that the number of shares of Common Stock issuable on
conversion of each share of such series shall be increased in proportion to such
increase of the aggregate of shares of Common Stock outstanding and those
issuable with respect to such Common Stock Equivalents with the number of shares
issuable with respect to Common Stock Equivalents determined from time to time
in the manner provided for deemed issuances in subsection 3(d)(i)(E).

                  (iv)   If the number of shares of Common Stock outstanding at
any time after the Purchase Date is decreased by a combination of the
outstanding shares of Common Stock, then, following the record date of such
combination, the Conversion Price for the Preferred Stock shall be appropriately
increased so that the number of shares of Common Stock issuable on conversion of
each share of such series shall be decreased in proportion to such decrease in
outstanding shares.

            (e)   Other Distributions. In the event this corporation shall
                  -------------------
declare a distribution payable in securities of other persons, evidences of
indebtedness issued by this corporation or other persons, assets (excluding cash
dividends) or options or rights not referred to in subsection 3(d)(iii), then,
in each such case for the purpose of this subsection 3(e), the holders

                                      -9-
<PAGE>

of the Preferred Stock shall be entitled to a proportionate share of any such
distribution as though they were the holders of the number of shares of Common
Stock of the corporation into which their shares of Preferred Stock are
convertible as of the record date fixed for the determination of the holders of
Common Stock of the corporation entitled to receive such distribution.

               (f)  Recapitalizations. If at any time or from time to time there
                    -----------------
shall be a recapitalization of the Common Stock (other than a subdivision,
combination or merger or sale of assets transaction provided for elsewhere in
this Section 3 or in Section 2) provision shall be made so that the holders of
the Preferred Stock shall thereafter be entitled to receive upon conversion of
the Preferred Stock the number of shares of stock or other securities or
property of the Company or otherwise, to which a holder of Common Stock
deliverable upon conversion would have been entitled on such recapitalization.
In any such case, appropriate adjustment shall be made in the application of the
provisions of this Section 3 with respect to the rights of the holders of the
Preferred Stock after the recapitalization to the end that the provisions of
this Section 3 (including adjustment of the Conversion Price then in effect and
the number of shares purchasable upon conversion of the Preferred Stock) shall
be applicable after that event as nearly equivalent as may be practicable.

               (g)  No Impairment. This corporation will not, by amendment of
                    -------------
its Certificate of Incorporation or through any reorganization,
recapitalization, transfer of assets, consolidation, merger, dissolution, issue
or sale of securities or any other voluntary action, avoid or seek to avoid the
observance or performance of any of the terms to be observed or performed
hereunder by this corporation, but will at all times in good faith assist in the
carrying out of all the provisions of this Section 3 and in the taking of all
such action as may be necessary or appropriate in order to protect the
Conversion Rights of the holders of the Preferred Stock against impairment.

               (h)  No Fractional Shares and Certificate as to Adjustments.

                    (i)  No fractional shares shall be issued upon the
conversion of any share or shares of the Preferred Stock, and the number of
shares of Common Stock to be issued shall be rounded to the nearest whole share.
Whether or not fractional shares are issuable upon such conversion shall be
determined on the basis of the total number of shares of Preferred Stock the
holder is at the time converting into Common Stock and the number of shares of
Common Stock issuable upon such aggregate conversion.

                    (ii) Upon the occurrence of each adjustment or readjustment
of the Conversion Price of Preferred Stock pursuant to this Section 3, this
corporation, at its expense, shall promptly compute such adjustment or
readjustment in accordance with the terms hereof and prepare and furnish to each
holder of Preferred Stock a certificate setting forth such adjustment or
readjustment and showing in detail the facts upon which such adjustment or
readjustment is based. This corporation shall, upon the written request at any
time of any holder of Preferred Stock, furnish or cause to be furnished to such
holder a like certificate setting forth (A) such adjustment and readjustment,
(B) the Conversion Price for such series of Preferred Stock at the time in
effect, and (C) the number of shares of Common Stock and the amount, if

                                     -10-
<PAGE>

any, of other property which at the time would be received upon the
conversion of a share of Preferred Stock.

               (i)  Notices of Record Date. In the event of any taking by this
                    ----------------------
corporation of a record of the holders of any class of securities for the
purpose of determining the holders thereof who are entitled to receive any
dividend (other than a cash dividend) or other distribution, any right to
subscribe for, purchase or otherwise acquire any shares of stock of any class or
any other securities or property, or to receive any other right, this
corporation shall mail to each holder of Preferred Stock, at least 20 days prior
to the date specified therein, a notice specifying the date on which any such
record is to be taken for the purpose of such dividend, distribution or right,
and the amount and character of such dividend, distribution or right.

               (j)  Reservation of Stock Issuable Upon Conversion. This
                    ---------------------------------------------
corporation shall at all times reserve and keep available out of its authorized
but unissued shares of Common Stock, solely for the purpose of effecting the
conversion of the shares of the Preferred Stock, such number of its shares of
Common Stock as shall from time to time be sufficient to effect the conversion
of all outstanding shares of the Preferred Stock, and if or any time the
number of authorized but unissued shares of Common Stock shall not be sufficient
to effect the conversion of all then outstanding shares of the Preferred Stock,
in addition to such other remedies as shall be available to the holder of such
Preferred Stock, this corporation will take such corporate action as may, in the
opinion of its counsel, be neccessary to increase its authorized but unissued
shares of Common Stock to such number of shares as shall be sufficient for such
purposes, including, without limitation, engaging in best efforts to obtain the
requisite stockholder approval of any necessary amendment to these articles.

              (k)  Notices. Any notice required by the provisions of this
                    -------
Section 3 to be given to the holders of shares of Preferred Stock shall be
deemed given if deposited in the United States mail, postage prepaid, and
addressed to each holder of record at his address appearing on the books of
this corporation.

          4.   Voting Rights.
               -------------

               (a)  Subject to subsection 4(b) below, the holder of each share
of Preferred Stock shall have the right to one vote for each share of Common
Stock into which such Preferred Stock could then be converted (with any
fractional share determined on an aggregate conversion basis being rounded to
the nearest whole share), and with respect to such vote, such holder shall have
full voting rights and powers equal to the voting rights and powers of the
holders of Common Stock, and shall be entitled, notwithstanding any provision
hereof, to notice of any stockholders' meeting in accordance with the Bylaws of
this corporation, and shall be entitled to vote, together with holders of Common
Stock, with respect to any question upon which holders of Common Stock have the
right to vote.

               (b)  So long as at least one million (1,000,000) shares of
Preferred Stock shall remain outstanding (subject to appropriate adjustment for
any stock split, reverse stock split, stock dividend, recapitalization or
similar transaction), (i) the holders of shares of Series A Preferred Stock,
Series B Preferred Stock and Series C Preferred Stock, voting together

                                     -11-
<PAGE>

as a class and on an as-converted basis, shall have the right to elect two
members of the Board of Directors of this corporation (the "Series A, B and C
Directors"), (ii) the holders of shares of Series D Preferred stock, voting as a
separate series, shall have the right to elect one member of the Board of
Directors of this corporation (the "Series D Director"), (iii) the holders of
shares of Common Stock, voting separately as a class, shall have the right to
elect two members of the Board of Directors of this corporation (the "Common
Directors"), and (iv) each additional member of the Board of Directors, if any
(collectively, the "Other Directors"), shall be elected by the vote of the
holders of the Preferred stock and, the holders of the Common Stock, voting
separately as two classes, and with respect to the Preferred stock, on an as-
converted basis, in accordance with subsection 4(a). So long as at least one
million (1,000,000) shares of Preferred Stock shall remain outstanding (subject
to appropriate adjustment for any stock split, reverse stock split, stock
dividend, recapitalization or similar transaction), the Series A, B and C
Directors may be removed from the Board of Directors only by the affirmative
vote of the holders of at least a majority of the Series A Preferred stock,
Series B Preferred Stock and Series C Preferred Stock, voting together as a
class and on an as-converted basis, the Series D Director may be removed from
the Board of Directors only by the affirmative vote of the holders of a majority
of the Series D Preferred Stock, voting as a separate series, the Common
Directors may be removed from the Board of Directors only by the affirmative
vote of the holders of a majority of the Common Stock, voting separately as a
class, and any Other Directors may be removed from the Board of Directors upon
the affirmative vote of either the holders of a majority of the Preferred Stock,
voting separately as a class and on an as-converted basis, or the holders of a
majority of the Common Stock, voting separately as a class. If a vacancy on the
Board of Directors is to be filled by the Board of Directors, only a director or
directors elected by the same class or classes of stockholders as those who
would be entitled to vote to fill such vacancy, if any, shall vote to fill such
vacancy.

          5.   Protective Provisions.
               ---------------------

               (a)  So long as any shares of Preferred Stock are outstanding,
this corporation shall not without first obtaining the approval (by vote or
written consent, as provided by law) of the holders of at least seventy percent
(70%) of the shares of Preferred Stock outstanding (voting together as a single
class and on an as-converted basis):

                    (i)    Authorize or issue any equity security senior or pari
                                                                            ----
passu to the Preferred Stock as to dividend rights or redemption rights or
-----
liquidation preferences;

                    (ii)   Sell, convey, or otherwise dispose of or encumber all
or substantially all of its property or business or merge into or consolidate
with any other corporation (other than a wholly-owned subsidiary corporation) or
effect any transaction or series of related transactions in which more than
fifty percent (50%) of the voting power of the corporation is disposed of;

                    (iii)  Whether by amendment of the corporation's Bylaws,
amendment of this Certificate of Incorporation or otherwise, alter or change the
rights, preferences or privileges of the shares of Preferred Stock, so as to
affect adversely such shares; or

                                     -12-
<PAGE>

                    (iv)    Take any action that would result in taxation of
the holders of shares of the Preferred Stock under Section 305 of the Internal
Revenue Code of 1986, as amended (or by comparable provision of the Internal
Revenue Code as herein from time to time amended);

                    (v)     Effect a material change in the nature of the
Company's business as conducted on the date hereof; or

                    (vi)    Approve or authorize the incurrence of any
indebtedness or the issuance of any guarantee of any obligation of any other
person or entity (other than a subsidiary) if the aggregate amount of the
principal amount of such indebtedness and the principal amount of the
indebtedness so guaranteed shall exceed $7,500,000;

               Further, so long as at least 1,000,000 shares of Preferred Stock
remain outstanding and unless unanimously approved by the Board of Directors of
this corporation, this corporation shall not take any of the following actions
without first obtaining the approval (by vote or written consent, as provided by
law) of the holders of at least seventy percent (70%) of the then outstanding
shares of Preferred Stock:

                    (vii)   make any loans or advances to its employees or any
members of their immediate families, other than travel advances and other
advances made in the ordinary course of business or loans to employees made
pursuant to promissory notes issued for the purchase of shares under a stock
option plan or restricted stock plan approved by the Board of Directors of this
corporation; or

                    (viii)  guarantee any indebtedness or obligation of any
other party other than in the ordinary course of business.

               (b)  In addition, so long as at least 500,000 shares of Series D
Preferred Stock are outstanding, this corporation shall not without first
obtaining the approval (by vote or written consent, as provided by law) of the
holders of at least fifty percent (50%) of the shares of Series D Preferred
stock outstanding

                    (i)     Authorize or issue any equity security senior or
pari passu to the Series D Preferred Stock as to dividend rights or redemption
----------
rights or liquidation preferences;

                    (ii)    Whether by amendment of the corporation's Bylaws,
amendment of this Certificate of Incorporation or otherwise, alter or change the
rights, preferences or privileges of the shares of Series D Preferred stock, so
as to affect adversely such shares; or

                    (iii)   Amend Section 3(b) of this Article IV so as to
affect adversely the Series D Preferred Stock.

                                     -13-
<PAGE>

          6.   Status of Converted Stock. In the event any shares of Preferred
               -------------------------
Stock shall be converted pursuant to Section 2 or Section 3 hereof, the shares
so converted shall be canceled and shall not be issuable by the corporation. The
Certificate of Incorporation of this corporation shall be appropriately amended
to effect the corresponding reduction in the corporation's authorized capital
stock.

          7.   Redemption. The Preferred Stock is not redeemable.
               ----------

     C.   Common Stock.
          -------------

          1.   Dividend Rights. Subject to the prior rights of holders of all
               ---------------
classes of stock at the time outstanding having prior rights as to dividends,
the holders of the Common Stock shall be entitled to receive, when and as
declared by the Board of Directors, out of any assets of the corporation legally
available therefor, such dividends as may be declared from time to time by the
Board of Directors.

          2.   Liquidation Rights. Upon the liquidation, dissolution or winding
               ------------------
up of the corporation, the assets of the corporation shall be distributed as
provided in subparagraph (b) of Section 2 of this Article IV.

          3.   Redemption. The Common Stock is not redeemable.
               ----------

          4.   Voting Rights. The holder of each share of Common Stock shall
               -------------
have the right to one vote, and shall be entitled to notice of any stockholders'
meeting in accordance with the bylaws of this corporation, and shall be entitled
to vote upon such matters and in such manner as may be provided by law.

                                   ARTICLE V

     Except as otherwise provided in this Certificate of Incorporation, in
furtherance and not in limitation of the powers conferred by statute, the Board
of Directors is expressly authorized to make, repeal, alter, amend and rescind
any or all of the Bylaws of the corporation.

                                  ARTICLE VI

     The number of directors of the corporation shall be fixed from time to time
by a bylaw or amendment thereof duly adopted by the Board of Directors.

                                  ARTICLE VII

     Elections of directors need not be by written ballot unless the Bylaws of
the corporation shall so provide.

                                 ARTICLE VIII

     Meetings of stockholders may be held within or without the State of
Delaware, as the Bylaws may provide.  The books of the corporation may be kept
(subject to any provision

                                     -14-
<PAGE>

contained in the statutes) outside the State of Delaware at such place or places
as may be designated from time to time by the Board of Directors or in the
Bylaws of the corporation.

                                  ARTICLE IX

     A director of this corporation shall, to the full extent permitted by the
Delaware General Corporation Law as it now exists or as it may hereafter be
amended, not be liable to the corporation or its stockholders for monetary
damages for breach of fiduciary duty as a director. Neither any amendment nor
repeal of this Article IX, nor the adoption of any provision of this Amended and
Restated Certificate of Incorporation inconsistent with this Article IX, shall
eliminate or reduce the effect of this Article IX in respect of any matter
occurring, or any cause of action, suit or claim that, but for this Article IX,
would accrue or arise prior to such amendment, repeal or adoption of an
inconsistent provision.

                                   ARTICLE X

     The corporation reserves the right to amend, alter, change or repeal any
provision contained in this Certificate of Incorporation, in the manner now or
hereafter prescribed by statute, and all rights conferred upon stockholders
herein are granted subject to this reservation.

                                   *********

     The foregoing Amended and Restated Certificate of Incorporation has been
duly adopted by this corporation's Board of Directors and stockholders in
accordance with the applicable provisions of Section 228, 242 and 245 of the
General Corporation Law of the State of Delaware.

                                     -15-
<PAGE>

     IN WITNESS WHEREOF, the undersigned have executed this certificate on
June 22, 1998.

                            RELEASE SOFTWARE CORPORATION

                            By:  /s/ Matthew Klein
                               ---------------------------
                               Matthew Klein, President

                            By:  /s/ James L. Brock
                               ---------------------------
                               James L. Brock, Secretary<PAGE>

                                                                     EXHIBIT 4.7

THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR ANY STATE SECURITIES LAWS. THEY MAY NOT BE SOLD, OFFERED FOR SALE,
PLEDGED, OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
RELATED THERETO OR AN OPINION OF COUNSEL (WHICH MAY BE COMPANY COUNSEL)
REASONABLY SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES
LAWS.

                                WARRANT AGREEMENT

                           RELEASENOW.COM CORPORATION

              Dated as of September 9, 1999 (the "Effective Date")

     WHEREAS, ReleaseNow.com Corporation, a Delaware corporation (the "Company")
has entered into a Master Lease Agreement dated as of April 16, 1999, Equipment
Schedule No. VL-1 and VL-2 dated as of April 16, 1999, and related Summary
Equipment Schedules (collectively, the "Leases") with Comdisco, Inc., a Delaware
corporation (the "Warrantholder"); and

     WHEREAS, the Company desires to grant to Warrantholder, in consideration
for Phase II of such Leases, the right to purchase shares of its Warrant Stock;

     NOW, THEREFORE, in consideration of the Warrantholder executing and
delivering such Leases in and consideration of mutual covenants and agreements
contained herein, the Company and Warrantholder agree as follows:

1. GRANT OF THE RIGHT TO PURCHASE WARRANT STOCK.
   --------------------------------------------

     The Company hereby grants to the Warrantholder, and the Warrantholder is
entitled, upon the terms and subject to the conditions hereinafter set forth, to
subscribe to and purchase, from the Company, 8,625 fully paid and non-assessable
shares of the Company's Warrant Stock (as defined herein) at a purchase price of
$4.00 per share (the "Exercise Price"). For purposes of this Warrant Agreement,
the term Warrant Stock shall mean the Company's Common Stock, unless (I) the
Company does not successfully complete the sale of Common Stock of the Company
in the Company's first public offering of securities for its own account
pursuant to an effective registration statement under the Securities Act of
1933, as amended (the "Initial Public Offering") by March 31, 2000, or (ii) the
Company closes a private investment round of preferred stock prior to the
closing of the Initial Public Offering, or (iii) an acquisition of all or
substantially all of the outstanding stock or assets of the Company, prior to
closing of an Initial Public Offering, in all such cases Warrant Stock shall
mean the Company's Series E Preferred Stock or Series F Preferred Stock (so long
as such series has the same rights, preferences, and privileges of the Series E
Preferred Stock), if any in the case of (ii) above. If Warrant Stock shall mean
Series E Preferred Stock, the Company shall immediately undertake to obtain
Stockholder approval to amend its Amended and Restated Certificate of
Incorporation to increase the authorized number of shares of its Series E
Preferred Stock to include 8,625 shares of Series E Preferred Stock so
Warrantholder shall hold a Series E Preferred Stock warrant. If Warrant Stock
shall mean Series F Preferred Stock, the Company shall immediately undertake to
obtain Stockholder approval to amend its Amended and restated Certificate of
Incorporation to increase its authorized number of share of its Preferred Stock
and reserve 8,625 shares of Series F Preferred Stock for issuance upon the
exercise of such Warrant. The number and purchase price of such shares are
subject to adjustment as provided for in Section 8 hereof.
<PAGE>

2. TERM OF THE WARRANT AGREEMENT
   -----------------------------

     Except as otherwise provided for herein, the term of this Warrant Agreement
and the right to purchase Warrant Stock as granted herein shall commence on the
Effective Date and shall be exercisable for a period of seven (7) years.

     Notwithstanding the term of this Warrant Agreement as set forth above, the
right to purchase Warrant Stock as granted shall expire, if not previously
exercised, immediately upon the closing of either of the following events:

     (i) an Initial Public Offering, provided that the underwriters so request
that the Warrantholder exercise at that time.

     (ii) upon the closing of a merger or consolidation of the Company with or
into another corporation when the Company is not the surviving corporation, or
the sale of all or substantially all of the Company's properties and assets to
any other person (the "Merger") provided in which Warrantholder realizes a value
for its shares equal to three (3) times the Exercise Price and acquirer so
request that the Warrantholder exercise at that time.

     The Company shall notify the Warrantholder if the Initial Public Offering
or Merger is proposed within a reasonable period of time prior to the filing of
a registration statement or the dosing of the Merger and if the Company fails to
deliver such written notice within a reasonable period of time. anything to the
contrary In this Warrant Agreement withstanding, the rights to purchase will not
expire until ton (10) business d" after the Company delivers such notice to the
Warrantholder. Such notes shall also contain such details of the proposed
Initial Public Offering or Merger as am reasonable in the circumstances and
notice that this Warrant Agreement Is expected to expire upon closing thereof.
If such dosing does not take place, the Company shall promptly notify the
Warrantholder that such proposed transaction has been terminated. Anything to
the contrary in this Warrant Agreement notwithstanding, the Warrantholder may
rescind any exercise of its purchase rights promptly after such notice of
termination of the proposed transaction if the exercise of warrants occurred
after the Company notified the Warrantholder that the Initial Public Offering or
Merger was proposed or if the exercise were otherwise precipitated by such
proposed Initial Public Offering or Merger, In the event of such rescission, the
Warrants will continue to be exercisable on the same terms and conditions.

3. EXERCISE OF THE PURCHASE RIGHTS.
   -------------------------------

     The purchase rights set forth in this Warrant Agreement are exercisable by
the Warrantholder in whole or in part t any time, or from firm to time. prior to
the expiration of the term set forth in Section 2 above, by tendering to the
Company at its principal office a notice of exercise In the form attached hereto
as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly
upon receipt of the Notice of Exercise and the payment of the purchase price in
accordance with the terms set forth below, and In no event later than twenty-one
(21) days thereafter, the Company shall issue to the Warrantholder a certificate
for ft number of shares of Warrant Stock purchased and shall execute the
acknowledgment of exercise in the form attached hereto as Exhibit II (the
"Acknowledgment of Exercise") indicating the number of shares which remain
subject to future purchases, If any,

     The Exercise Price may be paid at the Warrantholder's election either (i)
by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as
determined below. If the Warrantholder elects the Net Issuance method, the
Company will Issue Warrant Stock in accordance with the following formula:

                            X     =      Y (A-B)
                                       -------------
                                            A

     Where: X = the number of shares of Warrant Stock to be issued to the
Warrantholder.

                                       2
<PAGE>

     Y = the number of shares of Warrant Stock requested to be exercised under
this Warrant Agreement.

     A = the fair market value of one (1) share of Warrant Stock.

     B = the Exercise Price.

     For purposes of the above calculation, current fair market value of Warrant
Stock shall mean with respect to each share of Warrant Stock-

     (i) if the exercise is in connection with an Initial Public Offering, and
if the Company's Registration Statement relating to such public offering has
been declared effective by the SEC, then the fair market value per share shall
be the initial "Price to Public" specified in the final prospectus with respect
to the offering:

     (ii) If this Warrant is exercised after, and not in connection with the
Company's Initial Public Offering, and

          (a) If traded on a securities exchange, the fair market value per
     share shall be deemed to be the average of the closing prices over a five
     (5) day period ending three days before the day the current fair market
     value of the securities is being determined; or

          (b) If actively traded over-the-counter, the fair market value per
     share shall be deemed to be the average of the closing bid and asked prices
     quoted on the NASDAQ system (or similar system) over Me live (5) day period
     ending three days before the day the current fair market value of the
     securities Is being determined:

     (iii) If at any time the Common Stock Is not listed an any securities
exchange or quoted in the NASDAQ System or the over-the-counter market, the
current fair market value per share of Warrant Stock shall be the highest price
per share which the Company could obtain from a willing buyer (not a current
employee or director) for shares of Common Stock sold by the company, from
authorized but unissued shares, as determined in good faith by its Board of
Directors, unless the Company shall become subject to a merger, acquisition or
other consolidation pursuant to which the Company is not the surviving party, in
which case the fair market value of Common Stock shall be deemed to be the value
received by the holders of the Company's Warrant Stock on a common equivalent
basis pursuant to such merger or acquisition.

     Upon partial exercise by either cash or Net Issuance, the Company shall
promptly issue an amended Warrant Agreement representing the remaining number of
shares purchasable hereunder. All other terms and conditions of such amended
Warrant Agreement shall be identical to those contained herein, including, but
not limited to the Effective Date hereof.

4. RESERVATION OF SHARES.
   ---------------------

     During the term of this Warrant Agreement. the Company will at all TIMES
have authorized and reserved a sufficient number of shares of ITS Warrant Stock
to provide for the exercise of the rights to purchase Warrant Stock as provided
for herein.

5. NO FRACTIONAL SHARES OR SCRIP
   -----------------------------

     No fractional shares or scrip representing fractional shares shall be
issued upon the exercise of the Warrant, but in lieu of such fractional shares
the Company shall make a cash payment therefor upon the basis of the Exercise
Price then in effect.

                                       3
<PAGE>

6. NO RIGHTS AS SHAREHOLDER.
   ------------------------

     This Warrant Agreement does not entitle the Warrantholder to any voting
rights or other rights as a shareholder of the Company prior to the exercise of
the Warrant.

7. WARRANTHOLDER REGISTRY.
   ----------------------

     The Company shall maintain a registry showing the name and address of the
registered holder of this Warrant Agreement.

8. ADJUSTMENT RIGHTS.
   -----------------

     The purchase price per share and the number of shares of Warrant Stock
purchasable hereunder are subject to adjustment. as follows:

     (a) Merger and Sale of Assets. If at any time there shall be a capital
         -------------------------
reorganization of the shares of the Company's stock (other than a combination,
reclassification, exchange or subdivision of shares otherwise provided for
herein), or a merger or consolidation of the Company with or into another
corporation whether or not the Company is the surviving corporation, or the sale
of all or substantially all of the Company's properties and assets to any other
person (hereinafter referred to as a "Merger Event"), then, as a part of such
Merger Event, lawful provision shall be made so that the Warrantholder shall
thereafter be entitled to receive, upon exercise of the Warrant, the number of
shares of Warrant stock or other securities of the successor corporation
resulting from such Merger Event, equivalent in value to that which would have
been issuable if Warrantholder had exercised this Warrant immediately prior to
the Merger Event. In any such case, appropriate adjustment (as determined in
good faith by the Company's Board of Directors) shall be made in the application
of the provisions of this Warrant Agreement with respect to the rights and
interest of the Warrantholder after the Merger Event to the end that the
provisions of this Warrant Agreement (including adjustments of the Exercise
Price and number of shares of Warrant Stock purchasable) shall be applicable to
the greatest extent possible.

     (b) Reclassification of Shares. If the Company at any time shall, by
         --------------------------
combination, reclassification, exchange or subdivision of securities or
otherwise, change any of the securities as to which purchase rights under this
Warrant Agreement exist into the same or a different number of securities of any
other class or classes, this Warrant Agreement shall thereafter represent the
right to acquire such number and kind of securities as would have been issuable
as the result of such change with respect to the securities which were subject
to the purchase rights under this Warrant Agreement immediately prior to such
combination, reclassification, exchange, subdivision or other change.

     (c) Subdivision or Combination of Shares. If the Company at any time shall
         ------------------------------------
combine or subdivide its Warrant Stock, the Exercise Price shall be
proportionately decreased in the case of a subdivision, or proportionately
increased in the case of a combination.

     (d) Stock Dividends. If the Company at any time shall pay a dividend
         ---------------
payable in, or make any other distribution (except any distribution specifically
provided for in the foregoing subsections (a) or (b)) of the Company's stock,
then the Exercise Price shall be adjusted, from and after the record date of
such dividend or distribution, to that price determined by multiplying the
Exercise Price in effect immediately prior to such record date by a fraction (I)
the numerator of which shall be the total number of all shares of the Company's
stock outstanding immediately prior to such dividend or distribution, and (ii)
the denominator of which shall be the total number of all shares of the
Company's stock outstanding immediately after such dividend or distribution. The
Warrantholder shall thereafter be entitled to purchase, at the Exercise Price
resulting from such adjustment, the number of shares of Warrant Stock
(calculated to the nearest whole share) obtained by multiplying the Exercise
Price in effect immediately prior to such adjustment by the number of shares of
Warrant Stock issuable upon the exercise hereof immediately prior to such
adjustment and dividing the product thereof by the Exercise Price resulting from
such adjustment.

                                       4
<PAGE>

     (e) Antidilution Rights. Additional antidilution rights applicable to the
         -------------------
Warrant Stock purchasable hereunder are as set forth in the Company's
Certificate of Incorporation, as amended through the Effective Date, a true and
complete copy of which is attached hereto as Exhibit IV (the "Charter"). The
Company shall promptly provide the Warrantholder with any restatement,
amendment, modification or waiver of the Charter. The Company shall provide
Warrantholder with prior written notice of any dilutive issuance of its stock or
other equity security to occur after the Effective Date of this Warrant, which
notice shall include (a) the price at which such stock or security is to be
sold, (b) the number of shares to be issued, and (c) such other information as
necessary for Warrantholder to determine if a dilutive event has occurred.

     (f) Notice of Adjustments. If: (I) the Company shall declare any dividend
         ---------------------
or distribution upon its stock, whether in cash, property, stock or other
securities; (ii) the Company shall, if such Warrant Stock is Series E Preferred
Stock or Series F Preferred Stock, offer for subscription prorata to the holders
of any class of its Warrant Stock any additional shares of stock of any class or
other rights; (iii) there shall be any Merger Event; (iv) there shall be an
initial public offering; or (v) there shall be any voluntary dissolution,
liquidation or winding up of the Company; then, in connection with each such
event, the Company shall send to the Warrantholder: (A) at least twenty (20)
days' prior written notice of the date on which the books of the Company shall
close or a record shall be taken for such dividend, distribution, subscription
rights (specifying the date on which such the holders of Preferred Stock shall
be entitled thereto) or for determining rights to vote in respect of such Merger
Event, dissolution, liquidation or winding up; (B) in the case of any such
Merger Event, dissolution, liquidation or winding up, at least twenty (20) days'
prior written notice of the date when the same shall take place (and specifying
the date on which the holders of Warrant Stock shall be entitled to exchange
their Warrant Stock for securities or other property deliverable upon such
Merger Event, dissolution, liquidation or winding up); and (C) in the case of a
public offering, the Company shall give the Warrantholder at least twenty (20)
days written notice prior to the effective date hereof.

     Each such written notice shall set forth, in reasonable detail, (I) the
event requiring the adjustment, (ii) the amount of the adjustment, (iii) the
method by which such adjustment was calculated, (iv) the Exercise Price, and (v)
the number of shares subject to purchase hereunder after giving effect to such
adjustment, and shall be given by first class mail, postage prepaid, addressed
to the Warrantholder, at the address as shown on the books of the Company.

     (g) Timely Notice. Failure to timely provide such notice required by
         -------------
subsection (f) above shall entitle Warrantholder to retain the benefit of the
applicable notice period notwithstanding anything to the contrary contained in
any insufficient notice received by Warrantholder. The notice period shall begin
on the date Warrantholder actually receives a written notice containing all the
information specified above.

9. REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE COMPANY.
   --------------------------------------------------------

     (a) Reservation of Warrant Stock. The Warrant Stock issuable upon exercise
         ----------------------------
of the Warrantholder's rights has been duly and validly reserved and, when
Issued In accordance with the provisions of this Warrant Agreement will be
validly Issued, fully paid and non-assessable, and will be free of any taxes,
liens, charges or encumbrances of any nature whatsoever, provided, however, that
the Warrant Stock issuable pursuant to this Warrant Agreement may be subject to
restrictions on transfer under state and/or Federal securities laws. The Company
has made available to the Warrantholder true, correct and complete copies of Its
Charter and Bylaws. as amended. attached hereto as Exhibit IV. The Issuance of
certificates for Shares of Warrant Stock upon exercise of the Warrant Agreement
shall be made without charge to the Warrantholder for any issuance tax In
respect thereof, or other cost Incurred by the Company In connection with such
exercise and the related issuance of shares of Warrant Stock. The Company shall
not be required to pay any tax which may be payable In respect of any transfer
involved and the issuance and delivery of any certificate in a name other than
that of the Warrantholder.

     (b) Due Authority. The execution and delivery by the Company of this
         -------------
Warrant Agreement and the performance of all obligations of Me Company
hereunder, including the Issuance to

                                       5
<PAGE>

Warrantholder of the right to acquire the shares of Warrant Stock, have been
duly authorized by all necessary corporate action on the part of the Company,
and the Leases and this Warrant Agreement are not consistent with the Company's
Charter or Bylaws, do not contravene any law or governmental rule, regulation or
order applicable to k do not and will not contravene any provision of, or
constitute a default under, any Indenture, mortgage, contract or other
instrument to which it is a party or by which it is bound, and the Leases and
this Warrant Agreement constitute legal, valid and binding agreements of the
Company. enforceable in accordance with their respective terms.

     (c) Consents and Approvals. No consent or approval of, giving of notice to,
         ----------------------
registration with, or taking of any other action in respect of any state.
Federal or other governmental authority or agency is required with respect to
the execution, delivery and performance by the Company of its obligations under
this Warrant Agreement, except for the filing of notices pursuant to Regulation
D under the 1933 Act and any filing required by applicable state securities law,
which filings will be effective by the time required thereby.

     (d) Issued Securities. All issued and outstanding shares of Common Stock.
         -----------------
Preferred Stock or any other securities of the Company have been duly authorized
and validly Issued and are fully paid and nonassessable. All outstanding shares
of Common tock, Preferred Stock and any other securities were Issued in full
compliance with all Federal and state securities laws. In addition, as of August
10. 1999:

     (i) The authorized capital of the Company consists of (A) 20,500,000 shares
of Common Stock, of which 5,320,246 shares are issued and outstanding, (B)
2,042,000 shares of Series A Preferred Stock, of which 2,000,000 are issued and
outstanding and are convertible into 2,000,000 shares of Common Stock at a price
of $0.50 per share, (C) 2,272,854 shares of Series B Preferred Stock, of which
2,202,854 shares are issued and outstanding and are convertible Into 2,202.854
shares of Common Stock at a price of $0.70 per share, (D) 2,957,B43 shares of
Series C Preferred Stock, of which 2,944,460 shares are issued and outstanding
and are convertible into 2,944,460 shares of Common Stock at a price of $1.87
per share, (E) 2,936,960 shares of Series D Preferred Stock, of which 2,782,244
shares are issued and outstanding and are convertible into 2,782,244 shares of
Common Stock at a price of $3.49 per share, and (F) 3,000,000 shares of Series E
Preferred Stock, of which 3,000,000 shares are issued and outstanding and are
convertible into 3,000,000 shares of Common Stock at a price of $4.00 per share.

     (ii) As of August 10. 1999, the Company has reserved 5.775,292 shares of
Common Stock for Issuance under its 1998 Stock Option Plan. under which
1,618,772 options are outstanding at an average price of $1.82 per share. There
are no other options, warrants, conversion privileges or other rights presently
outstanding to purchase or otherwise acquire any authorized but unissued shares
of the Company's capital stock or other securities of the Company, except for
Warrants A, B, C and D.

     (iii) In accordance with the Company's certified Articles of Incorporation,
no shareholder of the Company has preemptive rights to purchase new issuances of
the Company's capital stock.

     (e) Insurance. The Company has in full force and effort insurance policies.
         ---------
with extended coverage insuring the Company and its property and business
against such losses and risks, and in such amounts, as are customary for
corporations engaged in a similar business and similarly situated and as
otherwise may be required pursuant to the terms of any other contract or
agreement.

     (f) Other Commitments to Register Securities. Except as set forth in this
         ----------------------------------------
Warrant Agreement and the Amended and Restated Investor Rights Agreement, the
Company is not pursuant to the terms of any other agreement currently in
existence, under any obligation to register under the 1933 Act any of its
presently outstanding securities or any of its securities which may hereafter be
issued.

     (g) Exempt Transaction. Subject to the accuracy of the Warrantholder's
         ------------------
representations in Section 10 hereof. the issuance of the Warrant Stork upon
exercise of this Warrant will constitute a

                                       6
<PAGE>

transaction exempt from (i) the registration requirements of Section 5 of the
1933 Act. In reliance upon Section 4(2) thereof, and (ii) the qualification
requirements of the applicable state securities laws.

     (h) Compliance with Rule 144. At the written request of the Warrantholder,
         ------------------------
who proposes to sell Warrant Stock issuable upon the exercise of the Warrant in
compliance with Rule 144 promulgated by the Securities and Exchange Commission,
the Company shall furnish to the Warrantholder, within ten days after receipt of
such request, a written statement confirming the Company's compliance with the
filing requirements of the Securities and Exchange Commission as set forth in
such Rule, as such Rule may be amended from time to time.

10. REPRESENTATIONS AND COVENANTS OF THE WARRANTHOLDER.
    --------------------------------------------------

     This Warrant Agreement has been entered Into by the Company in reliance
upon the following representations and movements of the Warrantholder:

     (a) Investment Purpose. The right to acquire Warrant Stock issuable upon
         ------------------
exercise of the Warrantholder's rights contained herein will be acquired for
investment and not with a view to the sale or distribution of any part thereof,
and the Warrantholder has no present Intention of selling or engaging In any
public distribution of the same except pursuant to a registration or exemption.

     (b) Private Issue. The Warrantholder understands (i) that the Warrant Stock
         -------------
issuable upon exercise of this Warrant is not registered under the 1933 Act or
qualified under applicable state securities laws on the ground that the issuance
contemplated by this Warrant Agreement will be exempt from the registration and
qualifications requirements thereof, and (ii) that the Company's reliance on
such exemption Is predicated on the representations set forth in this Section
10.

     (c) Disposition of Warrantholder's Rights. In no event will the
         -------------------------------------
Warrantholder make a disposition of any of its rights to acquire Warrant Stock
issuable upon exercise of such rights unless and until (I) it shall have
notified the Company of the proposed disposition, and (ii) if requested by the
Company, it shall have furnished the Company with an opinion of counsel (which
counsel may either be inside or outside counsel to the Warrantholder)
satisfactory to the Company and its counsel to the effect that (A) appropriate
action necessary for compliance with the 1933 Act has been taken, or (B) an
exemption from the registration requirements of the 1933 Act is available.
Notwithstanding the foregoing, the restrictions imposed upon the transferability
of any of its rights to acquire Warrant Stock or Common Stock issuable on the
exercise of such rights do not apply to transfers from the beneficial owner, and
shall terminate as to any particular share of Warrant Stock when (1) such
security shall have been effectively registered under the 1933 Act and sold by
the holder thereof in accordance with such registration or (2) such security
shall have been sold without registration in compliance with Rule 144 under the
1933 Act, or (3) a letter shall have been issued to the Warrantholder at its
request by the staff of the Securities and Exchange Commission or a ruling shall
have been issued to the Warrantholder at its request by such Commission stating
that no action shall be recommended by such staff or taken by such Commission,
as the case may be, if such security is transferred without registration under
the 1933 Act in accordance with the conditions set forth in such letter or
ruling and such letter or ruling specifies that no subsequent restrictions on
transfer are required. Whenever the restrictions imposed hereunder shall
terminate, as hereinabove provided, the Warrantholder or holder of a share of
Warrant Stock then outstanding as to which such restrictions have terminated
shall be entitled to receive from the Company, without expense to such holder,
one or more new certificates for the Warrant or for such shares of Warrant Stock
not bearing any restrictive legend.

     (d) Financial Risk. The Warrantholder has such knowledge and experience in
         --------------
financial and business matters as to be capable of evaluating the merits and
risks of its investment, and has the ability to bear the economic risks of its
investment.

     (e) Risk of No Registration. The Warrantholder understands that if the
         -----------------------
Company does not register with the Securities and Exchange Commission pursuant
to Section 12 of the 1933 Act, or file reports pursuant to Section 15(d) of the
Securities Exchange Act of 1934 (the "1934 Act"), or if a

                                       7
<PAGE>

registrable statement covering the securities under the 1933 Act is not in
effect when it desires to sell (I) the rights to purchase Warrant Stock pursuant
to this Warrant Agreement, or (ii) the Warrant Stock issuable upon exercise of
the right to purchase, it may be required to hold such securities for an
indefinite period. The Warrantholder also understands that any sale of its
rights of the Warrantholder to purchase Warrant Stock which might be made by it
in reliance upon Rule 144 under the 1933 Act may be made only in accordance with
the terms and conditions of that Rule.

     (f) Accredited Investor. Warrantholder is an "accredited investor" within
         -------------------
the meaning of the Securities and Exchange Rule 501 of Regulation D, as
presently in effect.

     (g) Legends. It is understood that the Warrant Stock issuable upon exercise
         -------
of the rights under this Warrant Agreement may bear one or all of the following
legends:

     (i) THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR
HYPOTHECATED IN THE ABSENCE OF A REGISTRATION STATEMENT IN EFFECT WITH RESPECT
TO THE SECURITIES UNDER SUCH ACT OR AN OPINION OF COUNSEL (WHICH MAY BE IN-HOUSE
COUNSEL) SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED OR
UNLESS SOLD PURSUANT TO RULE 144 OF SUCH ACT.

    (ii) Any legend required by State securities laws.

11. TRANSFERS.
    ---------

     Subject to the terms and conditions contained in Section 10 hereof, this
Warrant Agreement and all rights hereunder are transferable In whole or in part
by the Warrantholder and any successor transferee. provided, however, in no
event shall the number of transfers of the rights and interests in all of the
Warrants exceed three (3) transfers. The transfer shall be recorded on the books
of the Company upon receipt by the Company of a notice of transfer in the form
attached hereto as Exhibit III (the "Transfer Notice"), at its principal offices
and the payment to the Company of all transfer taxes and other governmental
charges Imposed on such transfer.

12. MARKET STANDOFF
    ---------------

     Each holder of the Warrant Stock issued upon exercise of the tights
hereunder agrees that. during the period specified by the underwriter or
underwriters of Common Stock (or other securities) of the Company, following the
effective date of a registration statement of the Company filed under the 1933
Act, it shall not, to the extent requested by such underwriter, directly or
indirectly sell, offer or contract to sell (including, without limitation, any
short sale) grant any option to purchase or otherwise transfer or dispose of
(other then to donee who agree to be similarly bound) any securities of the
Company at any time during such period except Warrant Stock included in such
registration.

13. MISCELLANEOUS.
    -------------

     (a) Effective Date. The provisions of this Warrant Agreement shall be
         --------------
construed and shall be given effect in all respects as if it had been executed
and delivered by the Company on the date hereof. This Warrant Agreement shall be
binding upon any successors or assigns of the Company.

     (b) Attorney's Fees. In any litigation, arbitration or court proceeding
         ---------------
between the Company and the Warrantholder relating hereto, the prevailing party
shall be entitled to attorneys' fees and expenses and all costs of proceedings
incurred in enforcing this Warrant Agreement.

     (c) Governing Law. This Warrant Agreement shall be governed by and
         -------------
construed for all purposes under and in accordance with the laws of the State of
California.

                                       8
<PAGE>

     (d) Counterparts. This Warrant Agreement may be executed in two or more
         ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

     (e) Notices. Any notice required or permitted hereunder shall be given in
         -------
writing and shall be deemed effectively given upon personal delivery, facsimile
transmission (provided that the original is sent by personal delivery or mail as
hereinafter set forth) or seven (7) days after deposit in the United States
mail, by registered or certified mail, addressed (I) to the Warrantholder at
6111 North River Road, Rosemont, Illinois 60018, Attention: Venture Lease
Administration, cc: Legal Department, Attention: General Counsel, (and/or, if by
facsimile, (847) 518-5465 and (847) 518-5088) and (ii) to the Company at 990
Commercial Street, San Carlos, CA 94070, Attention: Joan Walsh (and/or if by
facsimile, (650) 508-2490) or at such other address as any such party may
subsequently designate by written notice to the other party.

     (f) Remedies. In the event of any default hereunder, the non-defaulting
         --------
party may proceed to protect and enforce its rights either by suit in equity
and/or by action at law, including but not limited to an action for damages as a
result of any such default, and/or an action for specific performance for any
default where Warrantholder will not have an adequate remedy at law and where
damages will not be readily ascertainable. The Company expressly agrees that it
shall not oppose an application by the Warrantholder or any other person
entitled to the benefit of this Agreement requiring specific performance of any
or all provisions hereof or enjoining the Company from continuing to commit any
such breach of this Agreement.

     (g) No Impairment of Rights. The Company will not, by amendment of its
         -----------------------
Charter or through any other means, avoid or seek to avoid the observance or
performance of any of the terms of this Warrant, but will at all times in good
faith assist in the carrying out of all such terms and in the taking of all such
actions as may be necessary or appropriate in order to protect the rights of the
Warrantholder against impairment.

     (h) Survival. The representations, warranties, covenants and conditions of
         --------
the respective parties contained herein or made pursuant to this Warrant
Agreement shall survive the execution and delivery of this Warrant Agreement.

     (i) Severability. In the event any one or more of the provisions of this
         ------------
Warrant Agreement shall for any reason be held invalid, illegal or
unenforceable, the remaining provisions of this Warrant Agreement shall be
unimpaired, and the invalid, illegal or unenforceable provision shall be
replaced by a mutually acceptable valid, legal and enforceable provision, which
comes closest to the intention of the parties underlying the invalid, illegal or
unenforceable provision.

     (j) Amendments. Any provision of this Warrant Agreement may be amended by a
         ----------
written instrument signed by the Company and the Warrantholder.

     (k) Additional Documents. The Company, upon execution of this Warrant
         --------------------
Agreement, shall provide the Warrantholder with certified resolutions with
respect to the representations, warranties and covenants set forth in
subparagraphs (a) through (d), (f) and (g) of Section 9 above. The Company shall
also supply such other documents as the Warrantholder may from time to time
reasonably request.

                   REMAINDER OF PAGE LEFT INTENTIONALLY BLANK

                                       9
<PAGE>

         IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  Warrant
Agreement to be executed by its officers  thereunto  duly  authorized  as of the
Effective Date.

                          Company:  RELEASENOW.COM CORPORATION

                          By:
                             --------------------------------------------
                          Title:
                                -----------------------------------------

                          Warrantholder: COMDISCO, INC.

                           By:
                              --------------------------------------------
                           Title:
                                 -----------------------------------------

                                       10
<PAGE>

                                    EXHIBIT I

                               NOTICE OF EXERCISE

To:
     ---------------------------------------

(1)  The undersigned Warrantholder hereby elects to purchase __________ shares
     of the Warrant Stock of ____________________, pursuant to the terms of the
     Warrant Agreement dated the _____ day of __________________, 19__ (the
     "Warrant Agreement") between ______________________________ and the
     Warrantholder, and tenders herewith payment of the purchase price for such
     shares in full, together with all applicable transfer taxes, if any.

(2)  In exercising its rights to purchase the Warrant Stock of
     ____________________________, the undersigned hereby confirms and
     acknowledges the investment representations and warranties made in Section
     10 of the Warrant Agreement.

(3)  Please issue a certificate representing said shares of Warrant Stock in the
     name of the undersigned or in such other name as is specified below.

----------------------------------
(Name)

----------------------------------
(Address)

Warrantholder:  COMDISCO, INC.

By:
   -------------------------------
Title
     -----------------------------
Date:
     -----------------------------

                                       11
<PAGE>

                                   EXHIBIT II

                           ACKNOWLEDGMENT OF EXERCISE

     The undersigned ______________________________, hereby acknowledge receipt
of the "Notice of Exercise" from Comdisco, Inc., to purchase _____ shares of the
Warrant Stock of ____________________, pursuant to the terms of the Warrant
Agreement, and further acknowledges that _____ shares remain subject to purchase
under the terms of the Warrant Agreement.

                              Company:

                              By:
                                 ---------------------------------------
                              Title:
                                    ------------------------------------
                              Date:
                                   -------------------------------------

                                       12
<PAGE>

                                   EXHIBIT III

                                 TRANSFER NOTICE

     (To transfer or assign the foregoing Warrant Agreement execute this form
and supply required information. Do not use this form to purchase shares.)

     FOR VALUE RECEIVED, the foregoing Warrant Agreement and all rights
evidenced thereby are hereby transferred and assigned to

-----------------------------------------------------------------------------
(Please Print)

whose address is
                -------------------------------------------------------------

-----------------------------------------------------------------------------

                           Dated:
                                 --------------------------------------------
                           Holder's Signature:
                                              -------------------------------

                           Holder's Address:
                                            ---------------------------------

                           --------------------------------------------------
 Signature Guaranteed:
                           --------------------------------------------------

NOTE: The signature to this Transfer Notice must correspond with the name as it
      appears on the face of the Warrant Agreement, without alteration or
      enlargement or any change whatever. Officers of corporations and those
      acting in a fiduciary or other representative capacity should file proper
      evidence of authority to assign the foregoing Warrant Agreement.

                                       13

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