<PAGE>

                                                                  EXHIBIT 10.6.2

                                 AMENDMENT #2
                                      TO
             STRATEGIC RELATIONSHIP AND SOFTWARE LICENSE AGREEMENT
                    BY AND BETWEEN HEWLETT-PACKARD COMPANY
                         AND CLEARCOMMERCE CORPORATION
                           DATED SEPTEMBER 30, 1999

WHEREAS, Hewlett-Packard Company ("HP") and ClearCommerce Corporation
("ClearCommerce" or "CCC") have entered into a Strategic Relationship and
Software License Agreement dated September 30, 1999 (the "Agreement"); AND

WHEREAS, HP and ClearCommerce amended the Agreement by Amendment #1, dated
____________, and desire to further amend the Agreement as set forth below to
reflect expansion of their relationship to include HP's appointment as an
original equipment manufacturer;

NOW THEREFORE, in consideration of the mutual covenants contained herein, the
parties hereby agree to amend the Agreement as follows:


1.  Section 1, DEFINITIONS,  is amended by adding the following definitions:

"API's or CCC API's" means the external and internal Application Programming
Interfaces developed by Clear Commerce, namely a set of programmatic calls into
the application which allow applications and Extensions to control, be
controlled by, or alter the behavior of the Program(s) in a clearly defined
fashion. The term API includes any available development tools, documentation
and software developer's kits required to make use of the programming interfaces
owned or licensable by ClearCommerce without royalty obligations.

"HP API's" means the external and internal Application Programming Interfaces
developed by HP, namely a set of programmatic calls into the application which
allow applications to control, be controlled by, or alter the behavior of HP's
IPS products, and similar future products ("HP IPS Products"), in a clearly
defined fashion. The term HP API includes any available development tools,
documentation and software developer's kits required to make use of the
programming interfaces owned or licensable by HP without royalty obligations.

"Extension" means software code developed by or on behalf of  HP using the CCC
API's to add functionality or differentiation to the Program(s) which interfaces
with CCC API's  but which does not alter or modify the source code to the
Program(s) as would a derivative work.

"ClearCommerce Extension" means software code developed by or on behalf of
ClearCommerce using the HP API's to add functionality or differentiation to the
HP IPS Products which interfaces with HP API's  but which does not alter or
modify the source code as would a derivative work.

"Servers" means one box installed at a particular customer site which may
include 1 or more CPU's running a single copy of the Operating System for the
Programs.

"Training Materials" mean those materials used by ClearCommerce to provide sales
and technical training to its end users and sales and technical training
materials used for train-the-trainer programs including but not limited to
Documentation, coursework, reviewer guides, competitive product analyses and
product literature.

2.  Subsection 2.3, Enhancements, is amended by replacing it with the following:
                    ------------

2.3  Early Access to and Delivery of Enhancements and Later Released Programs.
     ------------------------------------------------------------------------
     ClearCommerce agrees to deliver to HP all, beta and pre-general release
     versions of


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    Enhancements, Programs and API's, in object code form, released after the
    Effective Date of this Amendment #2 ("Later Released Programs").
    ClearCommerce also agrees to deliver to HP a Complete Copy of any
    Enhancements, Programs or API's released after the Effective Date of this
    Amendment #2 within 5 days of its release to manufacturing by ClearCommerce
    for third party commercial use.

3.  Subsection 3.7, Ownership, is amended to add the following at the end: HP
                    ---------
    retains all its right, title and interest in the Extension(s) developed by
    or on behalf of HP. The parties jointly hold all right, title and interest
    in jointly developed software, without accounting obligations as described
    in a development agreement or statement of work governed by this Agreement.
    ClearCommerce retains all its right, title and interest in the ClearCommerce
    Extension(s) developed by or on behalf of ClearCommerce.

4.  Section 3.1, License to the Program, is amended to add: HP will sublicense
                 ----------------------
    the Program(s) to its resellers to license such Program(s) to its customers
    on a stand alone basis only on HP and HP NT platforms.

5   Section 3, RIGHTS GRANTED AND RESTRICTIONS, is amended by adding the
    following provisions as subsections 3.10, 3.11 and 3.12:

3.10  License to the API's.  ClearCommerce hereby grants to HP, under
      ---------------------
      ClearCommerce's intellectual property rights, a non-exclusive worldwide
      royalty free internal right and license to use, reproduce and publish CCC
      API's to create Extension(s) to the ClearCommerce also grants to HP, under
      ClearCommerce's intellectual property rights, a non-exclusive, worldwide
      royalty-free right and license to reproduce, publish, sublicense and
      distribute API's designated as suitable for external distribution by
      ClearCommerce to HP customers together with the Licensed Program as
      described in the license grant contained in subsection 3.1.

3.11  License to the HP API's.  HP hereby grants to ClearCommerce, under HP's
      ------------------------
      intellectual property rights, a non-exclusive worldwide royalty free
      internal right and license to use, reproduce and publish HP API's to
      create ClearCommerce Extension(s) to HP IPS and to support such
      ClearCommerce Extension(s) based on HP API's. HP also grants to
      ClearCommerce, under HP's intellectual property rights, a non-exclusive,
      worldwide royalty-free right and license to reproduce, publish, sublicense
      and distribute API's designated as suitable for external distribution by
      HP to ClearCommerce customers together with HP IPS Products to the extent
      HP grants such right to ClearCommerce under mutually acceptable terms and
      conditions. ClearCommerce shall own all right, title, and interest in and
      to the ClearCommerce Extension.

3.12  HP will use commercially reasonable efforts to leverage existing
      relationships with third party software licensors to allow HP to use and
      sublicense such third party software products with ClearCommerce Programs
      HP uses and sublicenses under this Agreement under such terms and
      conditions as acceptable to HP in its sole discretion.

5.  Subsection 4.1, Sales Model, is deleted and replaced with the following:
                    -----------

4.1   Sales Model.  HP and ClearCommerce agree to participate in a co-selling
      ------------
      program for a period of at 3 months commencing on the Effective Date of
      this Amendment #2 ("co-selling period"). The parties will meet within 30
      days from the Effective Date of this Amendment #2 to finalize their
      revised rules of engagement for the co-selling program including revenue
      and commission allocations for the HP and ClearCommerce sales forces.
      During the co-selling period, ClearCommerce agrees that its sales force
      may receive compensation regardless of whether HP or ClearCommerce closes
      the sale of the Programs. During the 3 month co-selling period and for
      those deals listed on the attached Exhibit K, to be mutually agreed upon
      within 10 days of executing this Amendment #2, HP will pay the


                                       2


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      royalty in effect prior to this Effective Date of this Amendment No. 2.
      For 3 months thereafter, ClearCommerce will use commercially reasonable
      efforts to provide sales support (exclusive of training) to HP on a
      resource available basis for strategic sales deals, as mutually agreed.
      For professional services assistance during the co-selling period, CCC
      will supply two days of effort without fee and any additional services
      will be charged at [*] per hour plus travel, living, and out-of-pocket
      expenses (T&L) or as mutually agreed. For 3 months after the co-selling
      period, should HP request a representative of ClearCommerce to participate
      in a standard sales call after the co-selling program ends, HP agrees to
      reimburse ClearCommerce up to [*] per day plus travel, living and other
      out-of-pocket expenses (T&L) for such sales support.

      Notwithstanding the above, HP and ClearCommerce agree that upon execution
      of the Amendment #2, any sales of the Programs to HP subsidiaries and
      divisions shall be credited exclusively to HP, excluding any sales that
      were in progress and generated exclusively by ClearCommerce prior to
      execution of the Amendment #2.

      During the Initial Term and any Renewal Term, HP agrees that CCC products
      will be promoted actively internally as a solution for all HP internal e-
      commerce initiatives as appropriate.

6.  Subsection 4.2, Sales Training, is deleted and replaced with the following:
                    --------------

ClearCommerce agrees to provide 20 days of sales training classes at CCC's
facility and such additional sales training as is mutually agreed upon by the
parties, and marketing materials and Training Materials. ClearCommerce grants HP
the right to use the marketing materials in accordance with subsection 3.3,
License to Photograph (Marketing Materials), and to use the Training Materials
-------------------------------------------
in accordance with subsection 3.2, License to the Documentation under the
                                   ----------------------------
license grant stated in subsection 3.2 for Sales Training and Technical training
as described in Exhibit D, subsection 4.

7.  Section 4, SALES AND MARKETING, is amended by adding the following
    subsections 4.3, Sales and Marketing Resources, 4.4, Branding, and 4.5,
                     -----------------------------       --------
    Press Release:
    --------------

4.3  Sales and Marketing Resources. HP agrees to designate a minimum of [*]
     ----------------------- -----
sales or technical sales resources within three months of execution of this
Amendment #2 to license the Programs to HP customers. CCC will designate a full-
time Global account manager and technical resource to HP to co-ordinate:
training, marketing materials, marketing support, technical support.

4.4   Branding.    For ClearCommerce Program(s) used hereunder by Enterprise
      -----------
Commerce and CFTM programs and VeriFone, HP may brand the Programs as follows:
a) If an HP only product with no reference to any other 3/rd/ party component,
HP may include explicitly using the ClearCommerce brand and product names, using
the 'powered by' approach or  private labeling the Programs, b) where HP
references any 3/rd/ party component (including VeriFone), HP will include
explicitly, using the ClearCommerce brand and product names or using the
'powered by' approach c) on Private labeled products where no HP brand
                      --
(including VeriFone) exists, there is no requirement for a ClearCommerce brand.
ClearCommerce agrees to provide HP the necessary software code, Documentation
and support needed to change the install and boot screens to conform to HP's
branding strategy for the Programs. If source code is required to perform these
modifications CCC will do so under the terms of the Master Professional
Consulting Agreement.

The parties agrees this provision, (4.4 Branding), may be further amended as
required to comply with HP corporate-wide policies regarding HP product
branding.

[*]  Certain information on this page has been omitted and filed separately with
     the Commission. Confidential treatment has been requested with respect to
     the omitted portions.

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As to any other HP program or use of ClearCommerce Program(s), the parties will
mutually agree how ClearCommerce Program(s) brand names will be included or not
in the HP product brand name on a program by program basis with due
consideration to the Program Roadmap.

ClearCommerce agrees that it will delete any of the branding requirements stated
in this provision or as the parties subsequently agree should ClearCommerce not
so require such limitations or restrictions on any one of its resellers or
original equipment manufacturers having similar or less strategic relationships
and accompanying agreements. The parties recognize their intention under this
provision is to allow HP to maintain parity with all other ClearCommerce
resellers or original equipment manufacturers having similar or less strategic
relationships and accompanying agreements.

4.5  Press Release. Within two (2) weeks after execution of this Amendment #2,
     --------------
ClearCommerce may release a joint press release with which HP has approved.  HP
will issue a press release in its normal course of business.

8.   The first sentence of subsection 5.2, New HP Products, is deleted and
                                           ---------------
     replaced with the following: "The parties intend that during the Initial
     Term and any Renewal Term of this Agreement, the Program(s) where
     reasonably possible will be compatible and interoperable with future
                                                --------------
     releases of the HP Products, provided that such new HP Products support the
     Programs."

     Subsection 5.2, New HP Products, is further amended by adding the
                     ---------------
     following provision at the end of the subsection: "ClearCommerce intends to
     maintain backward compatibility of its API's licensed to HP hereunder
     during the Initial Term and any Renewal Term, where commercially reasonable
     and as offered to other ClearCommerce customers."

9.   The title to Section 5 is amended to read as follows: PROGRAM MAINTENANCE,
     SUPPORT AND DEVELOPMENT ACTIVITIES, and the following is added as
     subsection 5.5:

5.5  Development Activities.
     ----------------------

i.   Development Activities.  The parties will engage in joint development
     ----------------------
activity which may include worldwide bank and processor payment interfaces,
internet fraud protection ,internationalization, performance tuning, interfacing
into other HP products (open view, service guard), porting of HP's current world
wide bank and processor payment interfaces, and interfaces between HP's IPS and
future physical world products and upgradeability. They also intend to explore
the need to engage in other joint development opportunities after evaluating
their respective needs in relation to the Program(s), the market or customer
requirements and feasibility of any such development activity. The details for
all joint development projects will be specifically described in one or more
statements of work, which will be governed by this Agreement. Each statement of
work will: (i) be made in writing in the form attached as Exhibit G, (ii)
reference this Agreement, (iii) be numbered consecutively on a chronological
basis, and (iv) be executed by authorized representatives of ClearCommerce and
HP. Individual statements of work should address at least the following areas:
1. Project description including scope of project; 2. Price, payment and
delivery schedules; 3. Acceptance criteria; 4. Nature of deliverables; 5.
Project coordination and management; 6. Support plan and 7. Other governing
terms and conditions. HP may retain ClearCommerce to perform mutually agreeable
development activities which will be governed by the terms and conditions of the
Master Professional Consulting Agreement between the parties which is attached
hereto as Exhibit H.

ii.  Program Roadmap and Meetings.  The parties will jointly develop a  mutually
     -----------------------------
agreeable Program roadmap outline within 30 days from the Effective Date of this
Amendment #2. The parties agree the focus of joint development activities is on
developing products which meet the needs of the parties. The parties will
designate the appropriate business and technical


                                       4
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representatives to participate in regularly scheduled meetings (no less than
once per calendar quarter) to review the Program roadmap outline, all planned
and ongoing joint development activities, Program releases and any other issues
or matters relevant to the successful execution of this Agreement.

iii. Engineering Resources.  Each party shall provide  engineering resources on
     ---------------------
joint product development projects relating to ClearCommerce Merchant Engine and
ClearCommerce Hosting Engine or other mutually agreeable projects as the parties
deem appropriate.

iv.  HP UX Servers.  HP will provide HP UX Servers, with an HP list price  of
     -------------
[*]. In consideration, ClearCommerce will rebate to HP [*] of the net "click
revenue" for HP referred customers using such servers to process payment
transactions. An additional [*] of list price HP UX Servers, HP software and
where appropriate 3/rd/ party software (which HP elects to include based on its
royalty obligations and licensing terms with such third party licensors) for
which HP is a reseller will be supplied to ClearCommerce at HP's cost for use by
ClearCommerce for joint development activities, CCC service bureau and technical
support. ClearCommerce agrees to pay to HP for the cost of such hardware and
software on a net 45-day basis. ClearCommerce agrees to retain (and not to
transfer or assign) any HP UX Servers it acquires hereunder for no less than 2
years from the date of acquisition

10.  Subsection 10.1, Term, is deleted and replaced with the following:  "Unless
                      ----
     otherwise terminated earlier under subsection 10.2, this Agreement
     commenced on September 30, 1999, and continues thereafter for 4 years
     ("Initial Term"). Thereafter, the term of this Agreement automatically
     renews for periods of 1 year ("Renewal Term") unless either party elects
     not to renew this Agreement and provides written notice of its election at
     least 90 days before the end of the applicable Renewal Term."

11.  Subsection 10.3, Effect of Termination, is amended by adding the following
                      ---------------------
     to the end of the provision: "Regardless of the reason for termination, HP
     shall retain the right to use the Program(s) and the API's then licensed
     for the sole purpose of fulfilling any contractual obligations for
     maintenance and support services to its customers. Should termination
     result from HP's uncured, material breach of the Agreement, HP may use the
     Program(s) and API's then licensed for the sole purpose of fulfilling any
     contractual obligations for maintenance and support services to its
     existing customers that HP has paid to CCC the applicable support and
     maintenance fees but only for a period not to exceed three (3) years from
     the date of termination and not for the purposes of creating Extensions.
     Such limited continued use is governed by this Agreement.

     If this Agreement is terminated because of HP's uncured, material default,
     the right to distribute the Program(s) already in HP's inventory or in
     transit as of the effective date of termination, shall cease on the earlier
     of: (i) 60 days after the effective date of termination or (ii)
     distribution by HP of the last Program to a third party. All Program(s)
     remaining in HP's inventory thereafter shall be destroyed.

     In the event this Agreement is terminated because of ClearCommerce's
     uncured, material breach, HP shall have the right and license to continue
     to use and license the Program(s) and API's in accordance with this
     Agreement including the right to develop Extension(s) so long as HP has
     made and continues to make all payments to ClearCommerce hereunder.

     Regardless of the reason for termination, Confidential Information will be
     returned to the owner within 60 days of termination of this Agreement.
     Notwithstanding, a party may retain the minimum number of copies of
     Confidential Information reasonably necessary for maintenance and support
     purposes and to exercise any rights or perform such obligations surviving
     termination of this Agreement.

[*]  Certain information on this page has been omitted and filed separately with
     the Commission. Confidential treatment has been requested with respect to
     the omitted portions.

                                       5
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     Nothing in this section 10.3 or in this Amendment #2 shall change, affect,
     or in any way modify, amend, or alter the terms and conditions set forth in
     sections 5.4, 11, 13.6 of Amendment #1 to this Agreement. In addition,
     section 5.4 shall take precedence over this section 10.3.

     12.  Subsection 13.3, Equity Participation, is deleted.
                           --------------------

     13. Subsection 13.13, Non-Restrictive Relationship, is amended by adding
                           ----------------------------
         the following to the end: "...or from independently developing
         Extension(s) to the Programs."

     14. Section 13 is amended by adding the following as 13.17, Escalation
                                                                 ----------
     Procedure:
     ---------

13.7  Escalation Procedure.  The escalation procedure stated in section 5 of
      --------------------
Exhibit D, Support and Maintenance, shall apply to resolve any problems or
disputes arising between the parties.

      15.  Exhibit A,  LICENSED PROGRAM, is amended to add an introductory
      statement: "The Programs listed in this Exhibit and licensed to HP by this
      Agreement include all versions, beginning with 3.8.2 and later, on HP-UX,
      Solaris and NT, as released during the Initial and Renewal Terms (and such
      other platforms HP may request and to which the parties agree) plus
      hosting services and, if and when available, fraud services and all other
      software programs developed and made generally commercially available by
      ClearCommerce during the Initial term and any Renewal Term of this
      Agreement to its indirect channels of distribution. Notwithstanding, the
      parties agree, during the Initial Term, ClearCommerce will negotiate with
      HP, in good faith, to release such Program(s) as HP requests for use in
      accordance with this Agreement."

      16. Exhibit B, PROGRAM ENHANCEMENTS, section 2 is amended by adding API's
      to the provision.

      17.  Exhibit C, PRICING, is deleted and replaced with the following:

All pricing discounts specified below shall apply for the Initial Term and any
Renewal Term of the Agreement unless otherwise agreed in writing by HP and
ClearCommerce.

1.   Pricing for ClearCommerce Programs.
     -------------------------------------

(i)  License Fee. HP agrees to pay ClearCommerce a license fee of [*] per year
     -----------
for each year of the Initial Term ("License Fee"). The License Fee payment
obligation for the Initial Term is irrevocable. HP paid ClearCommerce [*] of the
License Fee for the first year of the Initial Term upon execution of the
Agreement. The remainder of the first year's License Fee shall be paid as set
forth in Sections 4 and 5 as set forth in Sections 4 and 5 below. The License
Fees for the second, third and fourth year of the Initial Term will be paid in 4
equal increments of [*] payable with the royalty report submitted in accordance
with subsection (iii) below.

(ii) Application of License Fee and Royalty Schedule. [.HP will receive credits
     -----------------------------------------------
for royalties, including credits for up to [*] per year for non-Program License
Fees, owed to ClearCommerce ("Credits") against the License Fee according to the
following discount schedule for all ClearCommerce Programs:

Product             Royalty
-------             -------

All Programs        [*] of the net revenue derived from HP's license of the
                    Programs subject to the following minimum royalties:

                    For ClearCommerce Enterprise Merchant Engine and
                    ClearCommerce Merchant Engine: HP will pay to

[*]  Certain information on this page has been omitted and filed separately with
     the Commission. Confidential treatment has been requested with respect to
     the omitted portions.

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                    ClearCommerce a minimum royalty* of [*] for production use
                    and a minimum royalty* of [*] for Program(s) licensed for
                    testing, evaluation, development and for each additional
                    Server

                    For ClearCommerce Hosting Engine: HP will pay to
                    ClearCommerce a minimum royalty* of [*] for production use
                    and a minimum royalty* of [*] for Program(s) licensed for
                    testing, evaluation, development and for each additional
                    Server

                    HP will endeavor to use its reasonable best efforts to
                    discount the Program(s) and hardware at rates no higher than
                    HP software products licensed and hardware sold as a part of
                    the total solution provided to the HP customer.

CFTM                          [*] of Average Selling Price of [*]
Hosting Engine License
[Subject to 2(iii) below]

Support                         [*] of ClearCommerce's List Price for Support
HP provides 1/st/& 2/nd/ level  (includes Enhancements)
Support; installation and preinstallation.
 ClearCommerce
Provides all other support if
ClearCommerce receives the appropriate support
 fees.
[See, Exhibit D.]

*Minimum royalty may be adjusted upon mutual agreement based on market
conditions.

iii. CCC reserves the right to increase, decrease or change CCC's list price for
Programs, professional services, education and training, and support fees at
anytime during the Agreement with 90 day advance notice to HP. CCC reserves the
right to increase, decrease or change CCC's pricing model so long as the new
pricing model keeps HP at parity with other OEMs having a substantially similar
relationship with CCC.

Royalties for CFTM Hosting Engine Licenses will only accrue to HP as follows:
(1) for HP's CFTM customers who choose to use the Program to obtain any
functionality of the Program within the CFTM system, Program royalties will
accrue to HP upon shipment of the CFTM system to HP's CFTM customer; (2) for
HP's CFTM customers who choose to use software other than the Program inside the
CFTM system or any software outside of the CFTM system (such as through Card
Service International) to obtain the Program functionality, no Program royalties
(including those specified in Section 2 of this Exhibit C) will accrue to HP."

When the Credits exceed the License Fee then paid, any additional royalties paid
will reduce future License Fee payments beginning with the then next due payment
and ending with the last payment; after exhaustion of all License Fees paid
hereunder, HP will pay to ClearCommerce royalties in accordance with the
schedule set forth above with the royalty report described in subsection (iii)
below. No royalty will be due for any package item subsequently returned for a
refund or other similar adjustment consistent with HP's standard return
policies.

(iii)  Royalty Payments and Royalty Reports.  All accrued royalties (less any
       ------------------------------------
offset for Credits to the License Fees previously paid or due to ClearCommerce
by HP or for Programs returned or otherwise similarly adjusted by HP) will be
reported  by HP to ClearCommerce within 30 days

[*]  Certain information on this page has been omitted and filed separately with
     the Commission. Confidential treatment has been requested with respect to
     the omitted portions.

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after the end of each HP fiscal quarter which ends on the last day of January,
April, July and October and will be paid within 45 days after receipt of the
appropriate invoice.

2.  CFTM Pricing
    ------------

In addition to the License Fee and discount schedule specified in Section 1,
above, HP will continue to pay ClearCommerce the following CFTM fees only for
CFTM deals equaling [*] as set forth in subsection (iii) below:

(i)    "Per Store-Month Fee" royalty in the amount of US [*] for each Store
       License of the Program that HP uses internally or distributes for use in
       conjunction with an HP product. Such royalty will include the right to
       reproduce and distribute associated Documentation. A [*] payment for
       Store-Months will be due by March 1, 2000.

(ii)   Incremental licenses will be purchased in minimum increments of 1,000
       Store-Months for which HP will pay along with the royalty report.

(iii)  Pricing for the next 3 Hosting Engine licenses from the date of this
       Agreement for transfer or sale to a third party under the CFTM will be at
       a total price of [*].

3.  Per Merchant Per Year Pricing for Hosting Engine*
    -------------------------------------------------

In addition to the License Fee and discount schedule specified in Section 1,
above, HP will pay ClearCommerce the Per Merchant Per Year Fees for Hosting
Engine licenses according to the following discount schedule:


Quantity      Per Year   Net Pre-Pay Amount   OR   Royalty on Per Year Fee
--------------------------------------------------------------------------
0-500         $[*]       $                                   [*]
501-1000       [*]          [*]                              [*]
1001-5000      [*]          [*]                              [*]
5001-10000     [*]          [*]                              [*]
10001 +        [*]          [*]                              [*]

*Minimum royalty may be adjusted upon mutual agreement based on market
 conditions.

See Exhibit J for ClearCommerce Merchant Per year Pricing Policy

4.  Fees to migrate from Hosting and Merchant Engine Version 3.7
    ------------------------------------------------------------

For the $500,000 of the License Fee to be paid by HP to ClearCommerce under this
Section, HP shall make 5 monthly payments of $100,000 each. The first payment
shall be due by January 15, 2000. The remaining 4 payments shall be due in
accordance with the following schedule:

Payment                  Due Date
-------                  --------
[*]                      [*]
[*]                      [*]
[*]                      [*]
[*]                      [*]

5.  Fees for Enhancements
    ---------------------

If prior to January 31, 2000, ClearCommerce completes the Enhancements set forth
on Exhibit B, HP shall pay ClearCommerce [*] of the License Fee according to the
following schedule:

[*]  Certain information on this page has been omitted and filed separately with
     the Commission. Confidential treatment has been requested with respect to
     the omitted portions.

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Payment             Due Date
-------             --------
[*]                 January 31, 2000

For every week that ClearCommerce is late in completing its obligations under
Exhibit B, provided the delay is solely caused by ClearCommerce, HP shall
subtract [*] from the [*].

Professional Services Rates.  [*] per hour plus T& L
---------------------------
Special Pricing For PayWorks Migration.  ClearCommerce agrees to work with  HP
--------------------------------------
to migrate PayWorks customers to ClearCommerce Program(s).

6.  "Quick Start" Hosted Service. ClearCommerce will pay HP [*] of the per
     ---------------------------
click fees or monthly whichever is greater for HP customers signed up by HP or
its resellers for the service which amount will be paid within 30 days from the
last day of each calendar quarter.

18. Subsection 2(a) of Exhibit D, In General, is amended by adding the following
                                  ----------
sentence to the provision:  "To ensure HP assumes its responsibility for
providing 1/st/ and 2/nd/ level support, ClearCommerce agrees to change all
install shields, readme files and all other references in the core code to
clearly provide the appropriate HP contact information for such support."

19. 4(a) of Exhibit D, ClearCommerce Training, is amended by deleting the first
                       ----------------------
sentence and replacing it with the following:  "Upon the Effective Date of this
Amendment #2 and for the Initial Term and any Renewal Term, ClearCommerce will
provide, at no charge, to the HP response center engineers identified by HP, 15
days worth of initial training (minimum 5 people per training class) on the
ClearCommerce Programs to enable HP to deliver HP Support to Customers plus an
additional 5 days of training for each new Version or Major or Minor Release
(defined in subsection j below), at CCC's Austin facility."

20. Subsection 4(b), Right to Copy Education Materials, is deleted.
                     ---------------------------------

21. All other terms and conditions of the Agreement (as amended) remain in full
force and effect except as modified by this Amendment #2. The parties agree that
this Amendment #2 shall take effect upon the date of the execution by HP's duly
authorized representative below.

Agreed:

HEWLETT-PACKARD COMPANY                 CLEARCOMMERCE CORPORATION

By: _____________________________       By: _____________________________

Print Name: _______________________     Print Name: ______________________

Title: _____________________________    Title: ___________________________

Date: _____________________________     Date: ___________________________

[*]  Certain information on this page has been omitted and filed separately with
     the Commission. Confidential treatment has been requested with respect to
     the omitted portions.

                                       9
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                         EXHIBIT G - Statement of Work
                                      To
                                 AMENDMENT #2
                                      TO
             STRATEGIC RELATIONSHIP AND SOFTWARE LICENSE AGREEMENT
                    BY AND BETWEEN HEWLETT-PACKARD COMPANY
                         AND CLEARCOMMERCE CORPORATION
                           DATED SEPTEMBER 30, 1999

    Attached as Exhibit A to the Master Professional Consulting Agreement,
                         Attached hereto as Exhibit H

                                       10
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             EXHIBIT H - Master Professional Consulting Agreement
                                      To
                                 AMENDMENT #2
                                      TO
             STRATEGIC RELATIONSHIP AND SOFTWARE LICENSE AGREEMENT
                    BY AND BETWEEN HEWLETT-PACKARD COMPANY
                         AND CLEARCOMMERCE CORPORATION
                           DATED SEPTEMBER 30, 1999

                                   Attached

                                       11
<PAGE>

                              EXHIBIT I - Warrant
                                      To
                                 AMENDMENT #2
                                      TO
             STRATEGIC RELATIONSHIP AND SOFTWARE LICENSE AGREEMENT
                    BY AND BETWEEN HEWLETT-PACKARD COMPANY
                         AND CLEARCOMMERCE CORPORATION
                           DATED SEPTEMBER 30, 1999

                                   Attached

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<PAGE>

                   EXHIBIT J - CLEARCOMMERCE PRICING POLICY
                                      To
                                 AMENDMENT #2
                                      TO
             STRATEGIC RELATIONSHIP AND SOFTWARE LICENSE AGREEMENT
                    BY AND BETWEEN HEWLETT-PACKARD COMPANY
                         AND CLEARCOMMERCE CORPORATION
                           DATED SEPTEMBER 30, 1999


1.

  a)  Option period. This pricing is valid for 18 months after the execution
date of this Agreement. CCC reserves the right to modify pricing and license
terms for new Merchant Licenses purchased by Licensee after that time.

  b)  Implementation of the Merchant License. The Merchant License will be
considered "implemented" when the Merchant is utilizing the ClearCommerce
Hosting Engine in either test or production mode as of the first day of a month.

       i)  The 12-month term for each Merchant License commences when the
Merchant License is "implemented" by a Merchant.

  c)  An individual Merchant License must be implemented by the first day of the
18/th/ month to be valid under this Agreement. Any Merchant Licenses not
implemented by that time will expire, and will no longer be valid.

  d)  Any Merchant License that is not used for the entire 12-month license
term cannot be reused.

2.  Additional Merchant License option pricing. Licensee may purchase additional
Merchant Licenses based on the prices set forth in Section 9 above, for use for
additional new Merchants or for renewals for current Merchants for Licensee.  To
purchase additional Merchant Licenses, Licensee will send a written purchase
document to CCC that references this License Agreement No. 99--L, and provides
written agreement by the Licensee that the licenses will be subject to the terms
of this referenced agreement.

  a)  Term of the Licenses. These additional Merchant Licenses will be valid for
12 months from Execution Date of the license. The new license(s) "Execution
Date" will be the date of the final written purchase document from Licensee for
the additional license(s), at which time the license term will commence, unless
otherwise agreed upon in writing by CCC.

      i)   The Merchant License Fees for the new purchase of Merchant Licenses
are to be paid in full upon invoice by CCC to Licensee, upon execution of the
purchase document from Licensee.

  b)  Quantity Pricing for new or renewed Merchant Licenses. The price per
Merchant License of the new or renewed Merchant Licenses will depend on the
Quantity of Merchant Licenses In Operation and On The Shelf.

      i)   In Operation. The number of Merchant Licenses that Licensee currently
has In Operation is defined as interfaced to the Hosting Engine in test or
production mode.

           On the Shelf. The number of Merchant Licenses On The Shelf is defined
as Merchant Licenses already purchased by Licensee that have not been
implemented by Licensee at the time of the purchase and have not yet expired.

  c)  Expired Merchant Licenses excluded. The number of Merchant Licenses In
Operation or On the Shelf excludes Merchant Licenses that have already expired,
due to the 12-month usage, implementation by a Merchant that discontinues use
prior to the end of the 12-month term, or the expiration of licenses remaining
in the License Bank from the original prepaid purchase per this Agreement.

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<PAGE>

                        EXHIBIT K - Sales Opportunities
                                      To
                                 AMENDMENT #2
                                      TO
             STRATEGIC RELATIONSHIP AND SOFTWARE LICENSE AGREEMENT
                    BY AND BETWEEN HEWLETT-PACKARD COMPANY
                         AND CLEARCOMMERCE CORPORATION
                           DATED SEPTEMBER 30, 1999

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