Document:

<PAGE>   1
                                                                     EXHIBIT 4.1

                              ACCRUE SOFTWARE, INC.

                           INVESTORS' RIGHTS AGREEMENT

                                  JULY 14, 2000

<PAGE>   2

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                          Page
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<S>     <C>                                                                               <C>
1.      Amendment...........................................................................1

        1.1    Procedure....................................................................1
        1.2    Rights of Holders............................................................1

2.      Registration Rights.................................................................1

        2.1    Definitions..................................................................1
        2.2    Form S-3 Registration........................................................2
        2.3    Obligations of the Company...................................................4
        2.4    Furnish Information..........................................................5
        2.5    No Delay of Registration.....................................................5
        2.6    Indemnification..............................................................5
        2.7    Reports Under Securities Exchange Act of 1934................................7
        2.8    Assignment of Registration Rights............................................8
        2.9    Termination of Registration Rights...........................................8
        2.10   Piggyback Registration Rights................................................8

3.      Miscellaneous.......................................................................8

        3.1    Assignment...................................................................8
        3.2    Third Parties................................................................8
        3.3    Governing Law................................................................9
        3.4    Counterparts.................................................................9
        3.5    Notices......................................................................9
        3.6    Severability.................................................................9
        3.7    Delays or Omissions..........................................................9
</TABLE>

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                           INVESTORS' RIGHTS AGREEMENT

        THIS INVESTORS' RIGHTS AGREEMENT (the "Agreement") is entered into as of
July 14, 2000, by and between Accrue Software, Inc., a Delaware corporation (the
"Company") and Tantau Software, Inc., a Delaware corporation (the "Investor").

                                    RECITALS

        A. The Company, Investor and Tantau Software International, Inc., a
Delaware corporation and a wholly owned subsidiary of Investor ("Investor Sub")
have entered into an Asset Purchase Agreement of even date herewith (the
"Purchase Agreement") pursuant to which Investor and Investor Sub are selling to
the Company certain of the assets relating to Investor's Infocharger division
and as partial consideration therefor the Company is issuing and selling to
Investor shares of its Common Stock, $0.001 par value per share.

        B. A condition to Investor's and Investor Sub's obligation to effect the
closing of the transactions contemplated by the Purchase Agreement is that the
Company grant Investor the registration rights set forth herein.

        C. The Company wishes to execute this Agreement and grant to Investor
the rights contained herein in order to fulfill such condition.

        THE PARTIES AGREE AS FOLLOWS:

        1.     Amendment.

               1.1 Procedure. Except as expressly provided herein, neither this
Agreement nor any term hereof may be amended, waived, discharged or terminated
other than by a written instrument signed by the party against whom enforcement
of any such amendment, waiver, discharge or termination is sought.

               1.2 Rights of Holders. Each holder of Registrable Securities
(as defined in Section 2.1 herein below) shall have the absolute right to
exercise or refrain from exercising any right or rights that such holder may
have by reason of this Agreement, including, without limitation, the right to
consent to the waiver or modification of any obligation under this Agreement,
and such holder shall not incur any liability to any other holder of any
securities of the Company as a result of exercising or refraining from
exercising any such right or rights.

        2.     Registration Rights.

               2.1 Definitions.  As used in this Agreement:

                      (a) The terms "register," "registered," and "registration"
refer to a registration effected by preparing and filing a registration
statement in compliance with the Securities Act of 1933, as amended (the
"Securities Act"), and the subsequent declaration or ordering of the
effectiveness of such registration statement.

<PAGE>   4

                      (b) The term "Registrable Securities" means:

                            (i) The shares of Common Stock (the "Stock") issued
to Investor by the Company upon the Closing of the Purchase Agreement, including
the Stock delivered to the Depository Agent, as such term is defined in the
Purchase Agreement; and

                            (ii) Any other shares of Common Stock of the Company
issued as (or issuable upon the conversion or exercise of any warrant, right or
other security which is issued as) a dividend or other distribution with respect
to, or in exchange for or in replacement of, the Stock, excluding in all cases,
however, any Registrable Securities sold by a person in a transaction in which
his or her rights under this Agreement are not assigned; provided, however, that
Common Stock or other securities shall only be treated as Registrable Securities
if and so long as they have not been (A) sold to or through a broker or dealer
or underwriter in a public distribution or a public securities transaction, or
(B) sold in a transaction exempt from the registration and prospectus delivery
requirements of the Securities Act under Section 4(1) thereof so that all
transfer restrictions, and restrictive legends with respect thereto, if any, are
removed upon the consummation of such sale.

                      (c) The number of shares of "Registrable Securities then
outstanding" shall be determined by the number of shares of Common Stock or
other securities outstanding which are, and the number of shares of Common Stock
or other securities issuable pursuant to then exercisable or convertible
securities which are, Registrable Securities.

                      (d) The term "Holder" means any holder of outstanding
Registrable Securities who, subject to the limitations set forth in Section 2.8
below, acquired such Registrable Securities in a transaction or series of
transactions not involving any registered public offering.

                      (e) The term "Form S-3" means such form under the
Securities Act as in effect on the date hereof or any registration form under
the Securities Act subsequently adopted by the Securities and Exchange
Commission ("SEC") which permits inclusion or incorporation of substantial
information by reference to other documents filed by the Company with the SEC.

               2.2 Form S-3 Registration. In case the Company shall receive at
any time after August 1, 2000 from the Holder or Holders (the "S-3 Initiating
Holders") of the Registrable Securities a written request or requests that the
Company effect a registration on Form S-3 and any related qualification or
compliance with respect to all or a part of the Registrable Securities owned by
such Holder or Holders, the Company will:

                      (a) promptly give written notice of the proposed
registration, and any related qualification or compliance, to all other Holders;
and

                      (b) as soon as practicable, effect such registration and
all such qualifications and compliances as may be so requested and as would
permit or facilitate the sale

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and distribution of all or such portion of such Holder's or Holders' Registrable
Securities as are specified in such request, together with all or such portion
of the Registrable Securities of any other Holder or Holders joining in such
request as are specified in a written request given within 15 days after receipt
of such written notice from the Company; provided, however, that the Company
shall not be obligated to effect any such registration, qualification or
compliance, pursuant to this Section 2.2, (1) if Form S-3 is not available for
such offering by the Holders; (2) if the Holders, together with the holders of
any other securities of the Company entitled to inclusion in such registration,
propose to sell Registrable Securities and such other securities (if any) at an
aggregate price to the public (net of any underwriters' discounts or
commissions) of less than $500,000; (3) if the Company shall furnish to the
Holders a certificate signed by the president of the Company stating that in the
good faith judgment of the Board of Directors of the Company, it would be
detrimental to the Company and its stockholders for such Form S-3 Registration
to be effected at such time, in which event the Company shall have the right to
defer the filing of the Form S-3 registration statement for a period of not more
than ninety (90) days after receipt of the request of the Holder or Holders
under this Section 2.2; provided, however, that the Company shall not utilize
this right more than once in any twelve month period; or (4) in any particular
jurisdiction in which the Company would be required to qualify to do business or
to execute a general consent to service of process in effecting such
registration, qualification or compliance. Notwithstanding any other provision
of this Section 2.2, if the Company or an underwriter advising the Company
advises the S-3 Initiating Holders in writing that marketing factors require a
limitation of the number of shares to be included in any registration on Form
S-3, then the S-3 Initiating Holders shall so advise all Holders of Registrable
Securities which would otherwise be included in such registration on Form S-3
hereunder, and the number of shares of Registrable Securities that may be
included in the registration shall be allocated among all Holders thereof,
including the S-3 Initiating Holders, in proportion (as nearly as practicable)
to the amount of Registrable Securities of the Company owned by each Holder.

                (c) Subject to the foregoing, the Company shall file a
registration statement covering the Registrable Securities and other securities
so requested to be registered as soon as practicable after receipt of the
request or requests of the Holders. All expenses other than stock transfer
taxes, the fees and disbursements of special counsel for individual Holders,
underwriting discounts and commissions incurred in connection with a
registration requested pursuant to Section 2.2, including (without limitation)
all registration, filing, qualification, printer's and accounting fees and the
reasonable fees and disbursements of counsel for the selling Holder or Holders
(not to exceed $15,000) and counsel for the Company, shall be borne by the
Company; provided, however, that the Company shall not be required to pay for
any expenses of any registration proceeding begun pursuant to this Section 2.2
if the registration request is subsequently withdrawn at the request of the
Holders of a majority of the Registrable Securities to be registered (in which
case all Participating Holders shall bear such expenses); provided further,
however, that if at the time of such withdrawal, the Holders have learned of a
material adverse change in the condition, business, or prospects of the Company
from that known to the Holders at the time of their request, then the Holders
shall not be required to pay any of such expenses and shall retain their rights
pursuant to this Section 2.2.

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                      (d) The Company is obligated to effect only one (1) such
registration on Form S-3 pursuant to this Section 2.2.

               2.3 Obligations of the Company. Whenever required under this
Section 2 to effect the registration of any Registrable Securities, the Company
shall, as expeditiously as reasonably possible:

                      (a) Prepare and file with the SEC a registration statement
with respect to such Registrable Securities and use its best efforts to cause
such registration statement to become effective, and keep such registration
statement effective until the distribution contemplated in the Registration
Statement has been completed; provided that Rule 415, or any successor rule
under the Act, permits an offering on a continuous or delayed basis, and
provided further that applicable rules under the Act governing the obligation to
file a post-effective amendment permit, in lieu of filing a post-effective
amendment which (I) includes any prospectus required by Section 10(a)(3) of the
Act or (II) reflects facts or events representing a material or fundamental
change in the information set forth in the registration statement, the
incorporation by reference of information required to be included in (I) and
(II) above to be contained in periodic reports filed pursuant to Section 13 or
15(d) of the Securities Exchange Act of 1934, as amended, (the "1934 Act") in
the registration statement.

                      (b) Prepare and file with the SEC such amendments and
supplements to such registration statement and the prospectus used in connection
with such registration statement as may be necessary to comply with the
provisions of the Securities Act with respect to the disposition of all
securities covered by such registration statement.

                      (c) Furnish to the Holders such reasonable numbers of
copies of a prospectus, including a preliminary prospectus, in conformity with
the requirements of the Securities Act, and such other documents as they may
reasonably request in order to facilitate the disposition of Registrable
Securities owned by them.

                      (d) Use its best efforts to register and qualify the
securities covered by such registration statement under such other securities or
Blue Sky laws of such jurisdictions as shall be reasonably requested by the
Holders, provided that the Company shall not be required in connection therewith
or as a condition thereto to qualify to do business or to file a general consent
to service of process in any such states or jurisdictions.

                      (f) Notify each Holder of Registrable Securities covered
by such registration statement at any time when a prospectus relating thereto is
required to be delivered under the Securities Act of the happening of any event
as a result of which the prospectus included in such registration statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading in the light of the circumstances then
existing.

                      (g) Furnish, at the request of any Holder requesting
registration of Registrable Securities pursuant to this Section 2, on the date
that the registration statement with respect to such securities becomes
effective, (i) an opinion, dated such date, of the counsel

                                      -4-
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representing the Company for the purposes of such registration, in form and
substance as is customarily given to underwriters in an underwritten public
offering, addressed to the underwriters, if any, and to the Holders requesting
registration of Registrable Securities and (ii) a letter dated such date, from
the independent public accountants of the Company, in form and substance as is
customarily given by independent certified public accountants to underwriters in
an underwritten public offering, addressed to the underwriters, if any, and to
the Holders requesting registration of Registrable Securities.

                      (h) Cause all such Registrable Securities registered
pursuant hereunder to be listed on each securities exchange or automated
quotation system on which similar securities issued by the Company are then
listed.

               2.4 Furnish Information. It shall be a condition precedent to the
obligations of the Company to take any action pursuant to this Section 2 with
respect to the Registrable Securities of any selling Holder that such Holder
shall furnish to the Company such information regarding itself, the Registrable
Securities held by it, and the intended method of disposition of such securities
as shall be required to effect the registration of such Holder's Registrable
Securities.

               2.5 No Delay of Registration. No Holder shall have any right to
obtain or seek an injunction restraining or otherwise delaying any such
registration as the result of any controversy that might arise with respect to
the interpretation or implementation of this Section 2.

               2.6 Indemnification. In the event any Registrable Securities are
included in a registration statement under this Section 2:

                      (a) To the extent permitted by law, the Company will
indemnify and hold harmless each Holder, and each person, if any, who controls
such Holder within the meaning of the Securities Act or the 1934 Act, against
any losses, claims, damages, or liabilities (joint or several) to which they may
become subject under the Securities Act, the 1934 Act or other federal or state
law, insofar as such losses, claims, damages, or liabilities (or actions in
respect thereof) arise out of or are based upon any of the following statements,
omissions or violations (collectively a "Violation"): (i) any untrue statement
or alleged untrue statement of a material fact contained in such registration
statement, including any preliminary prospectus or final prospectus contained
therein or any amendments or supplements thereto, (ii) the omission or alleged
omission to state therein a material fact required to be stated therein, or
necessary to make the statements therein not misleading, or (iii) any violation
or alleged violation by the Company of the Securities Act, the 1934 Act, any
state securities law or any rule or regulation promulgated under the Securities
Act, the 1934 Act or any state securities law; and the Company will pay, as
incurred, to each such Holder, underwriter or controlling person, any legal or
other expenses reasonably incurred by them in connection with defending any such
loss, claim, damage, liability, or action; provided, however, that the indemnity
agreement contained in this subsection 2.6(a) shall not apply to amounts paid in
settlement of any such loss, claim, damage, liability, or action if such
settlement is effected without the consent of the Company (such

                                      -5-
<PAGE>   8

consent not to be unreasonably withheld), nor shall the Company be liable in any
such case for any such loss, claim, damage, liability, or action to the extent
that it arises out of or is based upon a Violation which occurs in reliance upon
and in conformity with written information furnished expressly for use in
connection with such registration by any such Holder, underwriter or controlling
person.

                      (b) To the extent permitted by law, each selling Holder
will indemnify and hold harmless the Company, each of its directors, each of its
officers who has signed the registration statement, each person, if any, who
controls the Company within the meaning of the Securities Act, any underwriter,
any other Holder selling securities in such registration statement and any
controlling person of any such underwriter or other Holder, against any losses,
claims, damages, or liabilities (joint or several) to which any of the foregoing
persons may become subject, under the Securities Act, the 1934 Act or other
federal or state law, insofar as such losses, claims, damages, or liabilities
(or actions in respect thereto) arise out of or are based upon any Violation, in
each case to the extent (and only to the extent) that such Violation occurs in
reliance upon and in conformity with written information furnished by such
Holder expressly for use in connection with such registration; and each such
Holder will pay, as incurred, any legal or other expenses reasonably incurred by
any person intended to be indemnified pursuant to this subsection 2.6(b), in
connection with defending any such loss, claim, damage, liability, or action;
provided, however, that the indemnity agreement contained in this subsection
2.6(b) shall not apply to amounts paid in settlement of any such loss, claim,
damage, liability or action if such settlement is effected without the consent
of the Holder (such consent not to be unreasonably withheld); provided further,
that in no event shall any indemnity under this Section 2.6(b) exceed the net
proceeds from the offering received by such Holder, except in the case of
willful fraud by such Holder.

                      (c) Promptly after receipt by an indemnified party under
this Section 2.6 of notice of the commencement of any action (including any
governmental action), such indemnified party will, if a claim in respect thereof
is to be made against any indemnifying party under this Section 2.6, deliver to
the indemnifying party a written notice of the commencement thereof and the
indemnifying party shall have the right to participate in, and, to the extent
the indemnifying party so desires, jointly with any other indemnifying party
similarly noticed, to assume the defense thereof with counsel mutually
satisfactory to the parties; provided, however, that an indemnified party shall
have the right to retain its own counsel, with the fees and expenses to be paid
by the indemnifying party, if representation of such indemnified party by the
counsel retained by the indemnifying party would be inappropriate due to actual
or potential differing interests between such indemnified party and any other
party represented by such counsel in such proceeding. The failure to deliver
written notice to the indemnifying party within a reasonable time of the
commencement of any such action, if prejudicial to its ability to defend such
action, shall relieve such indemnifying party of any liability to the
indemnified party under this Section 2.6 (to the extent of such prejudicial
effect), but the omission so to deliver written notice to the indemnifying party
will not relieve it of any liability that it may have to any indemnified party
otherwise than under this Section 2.6.

                                      -6-
<PAGE>   9

                      (d) No indemnifying party, in the defense of any claim
arising out of a Violation shall, except with the consent of each indemnified
party, consent to entry of any judgment or enter into any settlement which does
not include as an unconditional term thereof the giving by the claimant or
plaintiff to such indemnified party of a release from all liability in respect
to such claim or litigation and, in the event the terms of such judgment or
settlement include any term other than the payment by the indemnifying party of
money damages, the indemnifying party shall not so consent or enter into such a
settlement without the consent of each indemnified party (which will not be
unreasonably withheld) whether or not the terms thereof include such a release.

                      (e) The obligations of the Company and Holders under this
Section 2.6 shall survive the completion of any offering of Registrable
Securities in a registration statement under this Section 2, and otherwise.

                      (f) Notwithstanding the foregoing, to the extent that the
provisions on indemnification and contribution contained in the underwriting
agreement entered into in connection with the underwritten public offering are
in conflict with the foregoing provisions, the provisions in the underwriting
agreement shall control.

               2.7 Reports Under Securities Exchange Act of 1934. With a view to
making available to the Holders the benefits of Rule 144 promulgated under the
Securities Act and any other rule or regulation of the SEC that may at any time
permit a Holder to sell securities of the Company to the public without
registration or pursuant to a registration on Form S-3, the Company agrees to:

                      (a) Make and keep public information available, as those
terms are understood and defined in SEC Rule 144, at all times after ninety (90)
days after the effective date of the first registration statement filed by the
Company for the offering of its securities to the public;

                      (b) take such action, including the voluntary registration
of its Common Stock under Section 12 of the 1934 Act, as is necessary to enable
the Holders to utilize Form S-3 for the sale of their Registrable Securities,
such action to be taken as soon as practicable after the end of the fiscal year
in which the first registration statement filed by the Company for the offering
of its securities to the general public is declared effective;

                      (c) File with the SEC in a timely manner all reports and
other documents required of the Company under the Securities Act and the 1934
Act; and

                      (d) Furnish to any Holder, so long as the Holder owns any
Registrable Securities, forthwith upon request (i) a written statement by the
Company that it has complied with the reporting requirements of SEC Rule 144 (at
any time after ninety (90) days after the effective date of the first
registration statement filed by the Company), the Securities Act and the 1934
Act (at any time after it has become subject to such reporting requirements), or
that it qualifies as a registrant whose securities may be resold pursuant to
Form S-3 (at any time after it so qualifies), (ii) a copy of the most recent
annual or quarterly report of the Company and such other reports and documents
so filed by the Company, and (iii) such other information as may be

                                      -7-
<PAGE>   10

reasonably requested in availing any Holder of any rule or regulation of the SEC
which permits the selling of any such securities without registration.

               2.8 Assignment of Registration Rights. The rights to cause the
Company to register Registrable Securities pursuant to this Section 2 may only
be assigned by a Holder to a transferee who acquires at least 250,000 shares of
Registrable Securities (subject to appropriate adjustment for any stock split,
reverse stock split, stock dividend, recapitalization or similar transaction),
provided the Company is, prior to such transfer, furnished with written notice
of the name and address of such transferee; and provided, further, that such
assignment shall be effective only if immediately following such transfer the
further disposition of such securities by the transferee or assignee is
restricted under the Securities Act.

               2.9 Termination of Registration Rights. No Holder shall be
entitled to exercise any right provided for in this Agreement after the three
year anniversary of the date of this Agreement or at such time as such Holder is
may dispose of all of its Registrable Securities under Rule 144 under the
Securities Act in any three-month period.

               2.10 Piggyback Registration Rights. If subsequent to the date of
this Agreement and prior to August 1, 2000, the Company grants to any third
party (a "New Holder") the right to cause to be registered under the Securities
Act all of the Registrable Securities that such New Holder has requested to be
registered ("Piggyback Registration Rights") in connection with the public
offering by the Company prior to August 1, 2000 of its securities solely for
cash (other than a registration relating either to the sale of securities to
participants in a Company stock option, stock purchase or similar plan or to an
SEC Rule 145 transaction, or a registration on any form which does not include
substantially similar information as would be required to be included in a
registration statement covering the sale of the Registrable Securities), then
the Company shall grant to Investor comparable Piggyback Registration Rights.

        3.     Miscellaneous.

               3.1 Assignment. Subject to the provisions of Section 2.8 hereof,
the terms and conditions of this Agreement shall inure to the benefit of and be
binding upon the respective successors and assigns of the parties hereto.

               3.2 Third Parties. Nothing in this Agreement, express or implied,
is intended to confer upon any party, other than the parties hereto, and their
respective successors and assigns, any rights, remedies, obligations or
liabilities under this Agreement, except as expressly provided herein.

               3.3 Governing Law. This Agreement shall be governed by and
construed under the laws of the State of California as applied to agreements
among California residents entered into and to be performed entirely within
California.

               3.4 Counterparts. This 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.

                                      -8-
<PAGE>   11

               3.5 Notices.

                      (a) All notices, requests, demands and other
communications under this Agreement or in connection herewith shall be given to
or made upon the respective parties at the addresses set forth on the signature
page hereto.

                      (b) All notices, requests, demands and other
communications given or made in accordance with the provisions of this Agreement
shall be in writing, and shall be sent by airmail, return receipt requested, or
by telex or telecopy (facsimile) with confirmation of receipt, and shall be
deemed to be given or made when receipt is so confirmed.

                      (c) Any party may, by written notice (in accordance with
this Section 3.5) to the other, alter its address or respondent.

               3.6 Severability. If one or more provisions of this Agreement are
held to be unenforceable under applicable law, portions of such provisions, or
such provisions in their entirety, to the extent necessary, shall be severed
from this Agreement, and the balance of this Agreement shall be enforceable in
accordance with its terms.

               3.7 Delays or Omissions. No delay or omission to exercise any
right, power or remedy accruing to any party to this Agreement, upon any breach
or default of the other party, shall impair any such right, power or remedy of
such non-breaching party nor shall it be construed to be a waiver of any such
breach or default, or an acquiescence therein, or of or in any similar breach or
default thereafter occurring; nor shall any waiver of any single breach or
default be deemed a waiver of any other breach or default theretofore or
thereafter occurring. Any waiver, permit, consent or approval of any kind or
character on the part of any party of any breach or default under this
Agreement, or any waiver on the part of any party of any provisions or
conditions of this Agreement, must be made in writing and shall be effective
only to the extent specifically set forth in such writing. All remedies, either
under this Agreement, or by law or otherwise afforded to any Holder, shall be
cumulative and not alternative.

                            [SIGNATURE PAGES FOLLOW]

                                      -9-
<PAGE>   12

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

                                        COMPANY:

                                        ACCRUE SOFTWARE, INC.,
                                        a Delaware corporation

                                        By:
                                            ------------------------------------

                                        Title:
                                              ----------------------------------

                                        Address:
                                                --------------------------------

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

                                        Fax No.:
                                                --------------------------------

                                        Dated:
                                              ----------------------------------

                                        INVESTOR:

                                        TANTAU SOFTWARE, INC.,
                                        a Delaware corporation

                                        Name:
                                             -----------------------------------

                                        By:
                                           -------------------------------------

                                        Title:
                                              ----------------------------------

                                        Address:
                                                --------------------------------

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

                                        Fax No.:
                                                --------------------------------

                                        Dated:
                                              ----------------------------------<PAGE>   1

Software License Agreement
--------------------------------------------------------------------------------
                                                                   EXHIBIT 10.19

                              TANTAU SOFTWARE INC.

                     SOFTWARE LICENSE AND SERVICES AGREEMENT

        This Master Software License and Services Agreement (the "AGREEMENT") is
executed as of the 30th day of June, 2000 (the "EFFECTIVE DATE") by and between
Tantau Software, Inc. with its principal place of business at 108 Wild S. Basin
Road, Suite 110, Austin, Texas 78746 ("TANTAU") and Accrue Software, Inc. with
its principal place of business at 48634 Milmont Drive, Fremont, CA.("CLIENT").

1.   DEFINITIONS

1.1  "INFOCHARGER PRODUCT" means Tantau's InfoCharger product acquired by Client
     from Tantau pursuant to the Asset Purchase Agreement, and all improvements,
     enhancements and successors thereto.

1.2  LICENSED PRODUCT(s) "Licensed Product(s)" means the version of the Tantau
     software program set forth on the applicable Order Form attached hereto as
     part of Exhibit A in object code format, together with user guides and
     manuals ("DOCUMENTATION") provided to Client by Tantau, including Updates
     of such software programs and Documentation that may be provided by Tantau
     to Client from time to time during the term hereof pursuant to Section 5.1
     below.

1.3  "TECHNICAL SUPPORT" means services provided by Tantau in support and/or
     maintenance of Client's use of the Licensed Product(s) as further described
     in Section 5 and Exhibit B below.

1.4  "UPDATES" means error corrections, bug fixes, patches and work arounds to
     the Licensed Product(s).

1.5  "Asset Purchase Agreement" means the Asset Purchase Agreement between
     Tantau and Client executed concurrently herewith.

2.   GRANT OF LICENSE

     Subject to the terms of this Agreement, Tantau grants to Client a
     worldwide, royalty-free, nonexclusive license (the "LICENSE") to use,
     modify, sell, distribute and sublicense the LICENSED PRODUCTS in
     conjunction with the InfoCharger Product. Except as expressly set forth
     herein, Client has no right to receive, use or examine any source code or
     design documentation relating to the Licensed Product(s). Sublicenses by
     the Client will contain substantially equivalent restrictions and
     confidentiality as contained in Sections 4 and 11.1 of this agreement.
     Tantau acknowledges and agrees that the term of sublicenses granted by the
     Client may be perpetual.

     At Tantau's written request, but no more than once annually, Client shall
     furnish Tantau with a signed report (a) verifying that the Licensed
     Product(s) are being used pursuant to the provisions of this Agreement.
     Tantau shall furthermore have the right, but no more than once annually, to
     appoint an independent outside auditor to inspect Client's facilities to
     verify information contained in such report and to verify compliance with
     the terms and conditions of this Agreement and the Order Form.

     This license is granted for an initial period of two (2) years from the
     closing date of the Asset Purchase Agreement.

3.   OWNERSHIP

     As between the parties, Tantau retains all title to and ownership of and
     all proprietary rights with respect to the Licensed Product(s) and all
     copies, portions and modifications (by whomever made) thereof. The License
     does not constitute a sale of the Licensed Product(s) or any portion or
     copy thereof.

4.   RESTRICTIONS

     Client must reproduce and include the copyright notice and any other
     notices that appear on the original Program on any copies and any media
     therefor. Client shall not (and shall not authorize any third party) to (a)
     decompile, disassemble, or otherwise reverse engineer or attempt to
     reconstruct or discover any source code or underlying ideas or algorithms
     or file formats or programming or interoperability interfaces of the
     Licensed Product(s) or of any files contained in the Licensed Product(s) by
     any means whatsoever, (b) remove any product identification, copyright or
     other notices, or (c) disseminate performance information or analysis
     (including, without limitation, benchmarks) relating to the Licensed
     Product(s), except as reasonably necessary in connection with the marketing
     and sale of the Licensed Product in conjunction with the InfoCharger
     Product.

     In addition, Client is restricted from selling, distributing and using the
     Licensed Product(s), herein, other than in conjunction with the InfoCharger
     Product. The parties acknowledge that the InfoCharger Product may be sold
     in conjunction with other products or services offered by Client or its
     distributors, resellers and agents. Client may not sell or distribute the
     Licensed Product(s) as a separate unit. Client may not create any
     derivative works from the Licensed Product(s) other than in connection with
     the integration of the Licensed Product(s) with the InfoCharger Product.

5.   TECHNICAL SUPPORT (MAINTENANCE)

     5.1 TECHNICAL SUPPORT. Following the expiration of the warranty period set
     forth in Section 9 below, Tantau shall provide the technical support set
     forth in Exhibit B for a period of 2 years from the closing date of the
     Asset Purchase Agreement. Clients that are under contract with TANTAU

<PAGE>   2

     Software for Technical Support (Maintenance) will receive product
     enhancements as made generally available as well as the error corrections
     and bug fixes.

     The support defined in Exhibit B will be provided to Client for a period of
     2 years from the date of closing of the Asset Purchase Agreement. Client
     will provide all required support and interface to their enduser. Client
     will have one (1) interface to TANTAU's Customer Support organization.

5.2  Consulting and Training. Tantau shall provide consulting and training
     services as mutually agreed by the parties and pursuant to mutually agreed
     upon terms and conditions. All consulting services shall be rendered and
     invoiced on a time-and-materials basis at a mutually agreed upon rate.

5.3  Incidental Expenses. Client shall reimburse Tantau for actual, reasonable
     travel and out-of-pocket expenses incurred by Tantau in connection with
     on-site services requested by Client.

6.   PAYMENT PROVISIONS AND REPORTING

     License fees are set forth in Exhibit A hereto and are exclusive of
     shipping, taxes (including withholding taxes), duties and the like, which
     shall be the responsibility of and paid by Client. If not otherwise
     specified, applicable License fees are due and payable within thirty (30)
     days of the closing date of the Asset Purchase Agreement. Technical Support
     fees, if any, shall be payable annually in advance, thirty (30) days from
     the renewal date; such fees will be those in effect at the beginning of the
     appropriate period of time for which the fees are being paid. Late payments
     will bear interest at the rate of 1.5% per month to cover TANTAU's costs of
     collection as well as interest, or, if lower, the maximum rate allowed by
     law. Clients that are under a maintenance agreement will be automatically
     renewed and invoiced 30 days prior to end of maintenance year. This
     maintenance automatic renewal will be for two periods of 12 months each.
     Cancellation by client of this renewal must be received before the end of
     the maintenance period that is under contract.

7.   TERMS AND TERMINATION [NEEDS WORK]

7.1  Term. This Agreement shall become effective as of the date of closing of
     the Asset Purchase Agreement. This Agreement shall automatically terminate,
     and Client shall have no obligation to pay the license fee or any other
     fees under this Agreement, in the event that the Asset Purchase Agreement
     is terminated prior to the date of closing of the Asset Purchase Agreement.
     Client shall have the right to renew this Agreement to obtain the license
     rights granted under Section 2 for Tantau's most current version of the
     Licensed Products for additional one (1) year periods upon the expiration
     of this Agreement or any such renewal term at a license fee that shall be
     no more than what Tantau charges any other customer. Tantau's obligation to
     provide Technical Support as set forth in Section 5 shall automatically
     renew for additional one year periods upon Client's payment of Tantau's
     then-current Technical Support fees, unless cancelled by Client by
     providing written notice to Tantau prior to the expiration of the
     then-current Technical Support period. Either party may terminate this
     Agreement in the event that other party does not cure any material breach
     of any provision of this Agreement within thirty (30) days (fifteen (15)
     days in the event of nonpayment) of receiving written notice of such breach
     from the other party; provided, however, that upon any such termination by
     Tantau, Tantau may exercise any rights and remedies provided by contract or
     at law or equity in order to seek monetary compensation or damages or an
     injunction for purposes of seeking to enjoin use of any license under this
     Agreement for uses not permitted under this Agreement, provided further,
     however, any such termination shall not modify or shorten the term of any
     license granted by Tantau to Client under this Agreement.. Tantau may
     terminate this Agreement by written notice to Client if Client becomes
     insolvent, becomes the subject of any voluntary or involuntary proceeding
     under the U.S. Bankruptcy Code or state insolvency proceeding and such
     proceeding is not terminated within sixty (60) days of its commencement or
     ceases to be actively engaged in business.

7.2  Effect of Termination. Upon the expiration of this Agreement, Client shall
     immediately cease further distribution or sale of the Licensed Product(s)
     and return or destroy all copies of the Licensed Product(s) and all
     portions thereof (whether or not modified or incorporated with or into
     other software) and so certify to Tantau; provided, however, that the
     termination or expiration of this Agreement shall not affect any
     sublicenses to the Licensed Products granted by Client in accordance with
     this Agreement prior to such termination or expiration. The parties' rights
     and obligations under Sections 6, 7, 8, 9, 10 and 11 shall survive the
     termination of this Agreement.

8.   PATENT AND COPYRIGHT INFRINGEMENT

     Tantau will defend any action brought by a third party against Client to
     the extent that such action is based on a claim that the Licensed
     Product(s) or any part thereof used within the scope of the License granted
     herein, infringe a copyright, trade secret or United States patent. Tantau
     will bear the expense of such defense and pay any damages and attorneys
     fees awarded by a court of competent jurisdiction to the extent
     attributable to such claim, provided that: (a) Client notifies Tantau
     promptly in writing of such claim, (b) Tantau has sole control of the
     defense and all related settlement negotiations; and (c) Client provides
     Tantau with assistance, information and authority required to perform
     Tantau's obligations under this Section 8. Tantau shall have no liability
     for any claim of infringement based upon (i) use of a superceded or altered
     release of Licensed Product(s) (unless the alteration was made or
     authorized by Tantau) if the infringement would have been avoided through
     the use of a current unaltered release of the Licensed Product(s) which
     Tantau provided to Client free of charge, (ii) use of the Licensed
     Product(s) combined with other products, processes or materials where the
     alleged infringement arises solely from such combination, or (iii) use not
     in accordance with this Agreement. If the Licensed Product(s) is or in
     Tantau's judgment may become the subject of any claim of intellectual
     property infringement, or if a court determines that the Programs infringes
     any intellectual property right then Tantau may at its option and expense
     either (i) procure for Client the right under such intellectual property
     right to use the Program; or (ii) replace the Program with other suitable
     software: or (iii) modify the Program to make the software noninfringing;
     or, if (i), (ii) and (iii) are commercially impractical, (iv) remove the
     Program and refund a pro rata portion of the license fees paid by Client
     for such Program, less an amount for use calculated over a five year period
     using straight line depreciation. THE FOREGOING CONSTITUTES TANTAU'S SOLE
     LIABILITY FOR INTELLECTUAL PROPERTY INFRINGEMENT AND IS IN LIEU OF ANY
     WARRANTIES OF NONINFRINGEMENT, WHICH ARE HEREBY DISCLAIMED.

<PAGE>   3

9.   LIMITED WARRANTY AND DISCLAIMER

     Subject to the conditions and limitations on liability stated herein,
     Tantau warrants for a period of thirty (30) days from the delivery of the
     initial copy of each type of Program hereunder that such Program, as so
     delivered, will materially conform to the then-current Documentation. In
     addition, Tantau warrants the media on which Licensed Product(s) are
     contained will be free of defects under normal use for a period of thirty
     (30) days following delivery thereof. This warranty covers only problems
     reported to Tantau during the warranty period. ANY LIABILITY OF TANTAU WITH
     RESPECT TO THE PROGRAM(S) OR THE PERFORMANCE THEREOF OR DEFECTS THEREIN
     UNDER ANY WARRANTY, NEGLIGENCE, STRICT LIABILITY OR OTHER THEORY WILL BE
     LIMITED EXCLUSIVELY TO PRODUCT REPLACEMENT OR, IF REPLACEMENT IS INADEQUATE
     AS A REMEDY OR, IN TANTAU'S OPINION, IMPRACTICAL, TO REFUND OF THE LICENSEE
     FEE AND TERMINATION OF THE LICENSE. EXCEPT FOR THE FOREGOING, THE
     PROGRAM(S) ARE PROVIDED "AS IS" WITHOUT WARRANTY OR CONDITION OF ANY KIND,
     INCLUDING WITHOUT LIMITATION, ANY WARRANTY OR CONDITION OF MERCHANTABILITY
     OR FITNESS FOR A PARTICULAR PURPOSE. FURTHER, TANTAU DOES NOT WARRANT,
     GUARANTEE, OR MAKE ANY REPRESENTATIONS THAT THE PROGRAM(S) WILL BE FREE
     FROM BUGS OR THAT USE OF PROGRAM(S) WILL BE UNINTERRUPTED OR REGARDING THE
     USE, OR THE RESULTS OF THE USE, OF THE PROGRAM(S) OR DOCUMENTATION IN TERMS
     OF CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. Client understands that
     Tantau is not responsible for and will have no liability for hardware,
     software, or other items or any services provided by any persons other than
     Tantau.

10.  LIMITATION OF REMEDIES AND DAMAGES; FORCE MAJEURE

     EXCEPT FOR BODILY INJURY OF A PERSON, TANTAU SHALL NOT BE RESPONSIBLE OR
     LIABLE WITH RESPECT TO ANY SUBJECT MATTER OF THIS AGREEMENT UNDER ANY
     CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER THEORY: (i) FOR
     INTERRUPTION OF USE OR FOR LOSS OR INACCURACY OR CORRUPTION OF DATA OR
     (EXCEPT FOR RETURN OF AMOUNTS PAID TO TANTAU FOR UNDELIVERED OR RETURNED
     NONCONFORMING PROGRAM(S)) COST OF PROCUREMENT OF SUBSTITUTE GOODS, SERVICES
     OR TECHNOLOGY; (ii) FOR ANY INDIRECT, INCIDENTAL, CONSEQUENTIAL, EXEMPLARY
     OR PUNITIVE DAMAGES INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS; OR
     (iii) FOR ANY MATTER BEYOND ITS REASONABLE CONTROL. CLIENT SHALL NOT BE
     RESPONSIBLE OR LIABLE WITH RESPECT TO ANY SUBJECT MATTER OF THIS AGREEMENT
     UNDER ANY CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER THEORY FOR ANY
     INDIRECT, INCIDENTAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES
     INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS.

11.  MISCELLANEOUS

11.1 Confidentiality. Except as expressly permitted in this Agreement, Client
     will not use or disclose any Licensed Product(s), idea, algorithm or
     information except to the extent Client can document that it is generally
     available for use and disclosure by the public without any charge or
     license. Client will not disclose any pricing or pricing related
     information to any third parties, such as pricing outlined in Exhibit A.
     Tantau shall not disclose to any third party any information provided by
     Client to Tantau which is marked confidential or proprietary or would
     reasonably be understood to be confidential or proprietary. The parties
     recognize and agree that there is no adequate remedy at law for breach of
     this Section 11.1, that such a breach would irreparably harm Tantau or
     Client and that each party is entitled to equitable relief (including,
     without limitation, injunctions) with respect to any such breach or
     potential breach in addition to any other remedies. The obligations of this
     Section 11.1 shall survive the expiration or termination of this Agreement.

11.2 Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY THE LAWS OF THE STATE OF
     TEXAS WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES AND WITHOUT REGARD TO
     THE 1980 UN CONVENTION ON THE INTERNATIONAL SALE OF GOODS. THIS AGREEMENT
     SHALL BE DEEMED TO BE EXECUTED IN AUSTIN, TEXAS.

11.3 Arbitration. If Client is not a U.S. corporation or entity, any dispute or
     claim arising out of or related to this contract, or the interpretation,
     making, performance, breach or termination thereof, shall be finally
     settled by binding arbitration in Austin, Texas (or such other location as
     is mutually agreed upon in writing by the parties) under the American
     Arbitration Association International Arbitration Rules, by one arbitrator
     appointed in accordance with said Rules, provided that at the request of
     either party, the arbitration shall be conducted by three arbitrators with
     each party selecting one arbitrator and the third arbitrator selected in
     accordance with the Rules. Judgment on the award rendered by the
     arbitrators may be entered in any court having jurisdiction thereof. The
     arbitrator shall apply Texas law to the merits of any dispute or claim,
     without reference to rules of conflict of law or the 1980 UN Convention on
     the International Sale of Goods. The parties may apply to any court of
     competent jurisdiction for a temporary restraining order, preliminary or
     permanent injunction, or other interim or conservatory relief, as
     necessary, without breach of this arbitration agreement and without any
     abridgment of the powers of the arbitrators. At the request of either
     party, the arbitrators will enter an appropriate protective order to
     maintain the confidentiality of information produced or exchanged in the
     course of the arbitration proceedings. The parties agree that, any
     provision of applicable law notwithstanding, they will not request, and the
     arbitrators shall have no authority to award, punitive or exemplary damages
     against any party. The costs of the arbitration, including administrative
     and arbitrator's fees, shall be shared equally by the parties. Each party
     shall bear the cost of its own attorneys' fees and expert witness fees. The
     arbitral proceedings and all pleadings and written evidence shall be in the
     English language. Any written evidence originally in another language shall
     be submitted in English translation accompanied by the original or true
     copy thereof.

11.4 Export of Licensed Product(s). Client will not remove or export from the
     United States or re-export from anywhere any part of the Licensed
     Product(s) or any direct product thereof except in compliance with and with
     all licenses and approvals required under applicable export laws and
     regulations.

11.5 Assignment. Neither this Agreement nor any License granted hereunder is
     assignable or transferable by Client without the prior written consent of
     Tantau; any attempt to do so shall be void; provided, however, that Client
     may assign or transfer this Agreement, in whole, in connection with a
     merger, acquisition or sale of assets. Tantau may assign this Agreement
     without consent from Client in connection with a merger, acquisition or
     sale of assets.

11.6 Severability. In the event any provision of this Agreement or portion
     thereof is held to be invalid or unenforceable then such provision shall be
     deemed stricken or modified to the minimum extent necessary and the
     remaining provisions of this Agreement shall remain in full force and
     effect.

<PAGE>   4

11.7 Waiver and Amendment. The waiver by either party of any default or breach
     of this Agreement shall not constitute a waiver of any other or subsequent
     default or breach.

11.8 Entire Agreement. Both parties agree that this Agreement and the Exhibits
     hereto and any duly executed Schedules constitute the complete and
     exclusive statement of the mutual understanding of the parties and
     supersede and cancel all previous written and oral agreements and
     communications relating to the subject matter hereof. Any waivers or
     amendments shall be effective only if made in writing by non-preprinted
     agreements clearly understood by both parties to be an amendment or waiver
     and signed by a duly authorized representative of each party. In the event
     of a conflict between the terms of this Agreement and any Schedule the
     terms and conditions of this Agreement shall apply.

Tantau Software, Inc.                        Client:
                                                    ----------------------------

By:                                          By:
   --------------------------------             --------------------------------

Name:                                        Name:
     ------------------------------               ------------------------------

Title:                                       Title:
      -----------------------------                -----------------------------

Date:                                        Date:
     ------------------------------               ------------------------------

<PAGE>   5

                                 [TANTAU LOGO]

        EXHIBIT A

        ORDER FORM

BILL TO:                                                     SHIP TO:
                                                             (if different from
                                                             billing address)
CUSTOMER NAME:                ACCRUE SOFTWARE, INC.          CUSTOMER NAME:
ADDRESS:                      48634 MILMONT DRIVE            ADDRESS:
CITY, STATE & ZIP             FREMONT, CA, 94538             CITY, STATE & ZIP

CONTACT NAME:                 GREG WALKER
PHONE #                                                      CUSTOMER REFERENCE:
E-MAIL ADDRESS                Greg.Walker@accrue.com
PO #:

WE HEREBY ORDER THE FOLLOWING PRODUCTS ACCORDING TO THE CONTRACTUAL TERMS AND
CONDITIONS OF THE SOFTWARE LICENSE AND SERVICES AGREEMENT.

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------------------
              PRODUCT
UNITS         NUMBER           PRODUCT DESCRIPTION                        UNIT PRICE    DISCOUNT     TOTAL PRICE
-----------------------------------------------------------------------------------------------------------------
<S>           <C>              <C>                                        <C>           <C>        <C>
              K0XX & T0XX      Krypton & Titanium-to be used in                                    $5,000,000.00
                               conjunction with the InfoCharger
                               product being acquired from TANTAU.
                               2 year license to sell and distribute
                               and sublicense including maintenance
                               provided to Accrue

                                                                                           Total
-----------------------------------------------------------------------------------------------------------------

   Platform:                                            Operating System

   TANTAU Sales Rep.                                    Maintenance dates:

-----------------------------------------------         ---------------------------------------------------
   Date                                                 Date

-----------------------------------------------         ---------------------------------------------------
   Customer:                                            TANTAU Software, Inc.
   Signature                                            Signature
</TABLE>

<PAGE>   6

                SOFTWARE MAINTENANCE AGREEMENT/TECHNICAL SUPPORT

                                    EXHIBIT B

THIS SOFTWARE Maintenance Agreement (the "Agreement") is made and entered into
this _____ day of _____, 20___ by and between TANTAU Software, Inc. ("TANTAU"),
and ______________________ ("Licensee")

        WHEREAS, Licensee and TANTAU wish to enter into an agreement for the
        Maintenance and Support of TANTAU software products.
NOW, THEREFORE, the parties hereto agree as follows:

1.  GENERAL TERMS AND CONDITIONS:

    (a) Scope of Technical Support: TANTAU shall maintain an organization and be
        prepared with suitably qualified and competent personnel to provide
        knowledgeable and timely maintenance and support service in accordance
        with the Standards for Maintenance and Support. These Standards cover
        the TANTAU software in use by Licensee Customers who have entered into a
        technical support agreement with Licensee for the Licensed Products.

    (b) OFFERING for Maintenance and Support: TANTAU will provide internet,
        email and telephone access to Licensee on a 24 x 7 basis. Support is
        provided by TANTAU Technical Support Engineers (TSE). It is the
        responsibility of the TANTAU TSE to:

        (i)    coordinate the resolution of problems, including the verification
               of any reported error associated with the installation,
               configuration or maintenance incurred in the approved usage of
               TANTAU software,

        (ii)   communicate with Licensee for additional information via
               telephone, internet or email while developing a permanent
               resolution or workaround,

    (c) Support Alias for Communication: Internet Support will be provided via
        the TANTAU main web site accessing the support web page. Email Support
        will be provided via an alias address by both parties. TANTAU alias is
        "support @tantau.com". All correspondence regarding technical support
        cases will be sent via these mechanisms. Telephone conversations between
        TANTAU and Licensee will be summarized in writing and inputted into the
        TANTAU support database. Such information can and may be extracted and
        delivered to Licensee via email or viewed by Licensee through internet
        access to the support web page if requested.

    (d) Case Tracking System: All reported cases will be tracked in TANTAU's
        support tracking database. Licensee can review support request history
        through internet access to the support web page and or by request have
        delivered full extracts of such history via email.

2.  REPORTING OF CASES TO TANTAU

    (a) Technical Support Cases: Technical support cases will generally fall
        into three categories:

        (i)    Configuration and Setup: Questions about product usage and
               installation that do not result in registration of a Product
               Defect or Enhancement Request.

        (ii)   Product Defect: A Licensee Customer or Licensee encounters a
               problem that is determined to be a Product Defect in the TANTAU
               Licensed Products.

        (iii)  Feature Enhancement Requests: Request for a tool feature or

<PAGE>   7

               documentation enhancement that is not included in the current set
               of Licensed Products or features. TANTAU will review Licensee's
               requests for feature Enhancement during normal product update
               cycles.

    (b) Case reports:

        All case reports to TANTAU's Technical Support Department shall include
        the following:

        -   The name and version of the Licensed Products and version number
            being used.

        -   Platform(s) on which the Licensed Products is running.

        -   A general description of the operating environment.

        -   A list of relevant hardware components in the environment.

        -   List of operating system versions of all hardware components.

        -   A description of the problem and expected results.

        -   System generated error messages or diagnostics where available.

        -   Date and time stamp

        -   Priority level (see Section 5.a.)

        -   User Status relating to Trial, Production or Demo.

        -   Method of preferred communication to be via phone or email

        -   Name of system issue is occuring on (if applicable)

        -   Any additional contact information for additional contact names,
            email addresses, numbers or if applicable after hours contact
            information.

    (a) TANTAU's Undertaking: For each Technical Support Case reported by
        Licensee, TANTAU undertakes to:

        (i)    Maintain and monitor published support mechanisms as well as a
               telephone number, for Licensee to call , to report a problem and
               receive assistance.

        (ii)   Confirm by e-mail, internet or phone the receipt of all reports
               to TANTAU. The confirmation shall include the unique Licensee
               Case Identifier, which will be used in all related
               communications.

        (iii)  Analyze the report and verify the existence of the problem.

        (iv)   Provide Licensee direction and assistance in resolving technical
               issues.

2.  RESPONSE TIME AND DEFINITIONS OF RESPONSE LEVEL PRIORITIES

    (a) Response Time: TANTAU will respond to Licensee within the following
        response time goals:

<TABLE>
<CAPTION>
----------------------------------------------
                             Response
Priority Level                Times
----------------------------------------------
<S>                    <C>
Emergency                     3 Hours
----------------------------------------------
High                          6 Hours
----------------------------------------------
Medium                        9 hours
----------------------------------------------
Low                           7 Days
----------------------------------------------
</TABLE>

        (i)    Response Time is the amount of time between when Licensee reports
               the case to TANTAU via internet, phone or email, and the intial
               response by TANTAU.

    (b) Definitions of: Response Level Priority

        (i)    Emergency: Critical business impact. Customer system is hard
               down. Company production can not function or continue. User has
               complete loss of service.

        (ii)   High: Significant business impact. System is impaired however
               still maintaining minimal functionality. Company production can
               continue maintaining minimal functionality. User has significant
               loss or degragated service.

        (iii)  Medium: Minimal business impact. User is in full working mode
               with only minor loss of service. System is impaired however still
               maintaining majority of functionality. Company production can
               continue maintaining majority of functionality.

        (iv)   Low: Feature functionality and documentation enhancements.

<PAGE>   8

    2. CASE PRIORITY LEVELS AND CORRECTION GOALS

    (a) Failures are assigned a priority level Emergency through Low. Each
        priority has associated temporary correction (workaround) and permanent
        correction response time goals. The priority levels for failures and
        associated response times are defined in the table below:

    (b) TANTAU will respond to failure reports based on the response time goals
        listed above (see table in Exhibit C, (3)(a)). In order for a failure to
        be reported to TANTAU, the Licensee's customer shall make reasonable
        efforts to provide Licensee a complete test case that will allow joint
        technical support to reproduce the failure.

<PAGE>   9

<TABLE>
<CAPTION>
---------------------------------------------------------------------------------------------
Priority                                   Temporary Correction      Permanent Correction
Level            Condition/Impact          (Workaround)              Response time goals
---------------------------------------------------------------------------------------------
<S>              <C>                       <C>                       <C>
Emergency        Critical business         Commercially reasonable   Within 30 business
                 business impact.          effort until fixed or a   days.
                 Customer system is hard   suitable workaround
                 down. Company production  provided.
                 can not function or
                 continue. User has
                 complete loss of
                 service.

---------------------------------------------------------------------------------------------
High             Significant business      Fix or suitable           Within 60 business
                 impact. System is         workaround provided       days.
                 impaired however still    within 3 business days.
                 maintaining minimal
                 functionality. Company
                 production can continue
                 maintaining minimal
                 functionality. User has
                 significant loss or
                 degragated service.

---------------------------------------------------------------------------------------------
Medium           Minimal business impact.  Fix or suitable           Within 180 business
                 User is in full working   workaround provided       days or next feasible
                 mode with only minor      within 5 business days.   product release.
                 loss of service. System
                 is impaired however
                 still maintaining
                 majority of
                 functionality. Company
                 production can continue
                 maintaining majority of
                 functionality.

---------------------------------------------------------------------------------------------
Low              Feature request or        Feature requests are      All features are
                 documentation             reviewed by the TANTAU    considered, but may or
                 Enhancement.              product manager before    may not be included in
                                           each major or minor       a future release.
                                           release.
---------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   10

1.   CLOSURE OF TECHNICAL SUPPORT CASES:

     Open Technical Support Cases will be considered to be resolved and will be
closed when:

     (a)  Priority Emergency: The Case will be considered to be closed when
          Licensee receives a workaround or information that resolves the issue
          and Licensee and Licensee's Customer agree that the issue has been
          resolved.

     (b)  Priority Medium: The case will be considered closed under one of the
          following conditions:

          (i)  Licensee receives a workaround or information that resolves the
               issue and agrees that the issue is resolved.

          (ii) Licensee has not responded to TANTAU after workaround or
               information was provided. The case will be closed after 10
               business days after the final e-mail has been received on
               Licensee's Support e-mail alias. The case can be reopened if the
               issue has not been resolved.

     (a)  Priority Medium: The case will be considered closed under one of the
          following conditions:

          (i)  Licensee receives an information that resolves the issue and
               agrees that the issue is resolved.

          (ii) Licensee has not responded to TANTAU after information was
               provided. The case will be closed after 5 business days after the
               final e-mail message has been received on Licensee's Support
               e-mail alias. The case can be reopened if the issue has not been
               resolved

Technical support cases may be reopened at Licensee's request if the problem
reoccurs.

1.   CASE ESCALATION PROCEDURE

     The priority level for a reported case will be determined jointly by the
     Licensee. In the case of Emergency failures, regular status updates will be
     provided to Licensee.

1.   MAINTENANCE FEES

     Price of maintenance is included in the 2 year license that is granted.

Entire Agreement. Both parties agree that this Agreement and the Exhibits hereto
and any duly executed Schedules constitute the complete and exclusive statement
of the mutual understanding of the parties and supersede and cancel all previous
written and oral agreements and communications relating to the subject matter
hereof. Any waivers or amendments shall be effective only if made in writing by
non-preprinted agreements clearly understood by both parties to be an amendment
or waiver and signed by a duly authorized representative of each party. In the
event of a conflict between the terms of this Agreement and any Schedule the
terms and conditions of this Agreement shall apply.

        Client:
               ----------------------------------

        By:
           --------------------------------------

        Name:
             ------------------------------------

        Title:
              -----------------------------------

        Date:
             ------------------------------------

        TANTAU Software, Inc

        By:
           --------------------------------------

        Name:
             ------------------------------------

        Title:
              -----------------------------------

        Date:
             ------------------------------------

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