Document:

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                                                                    EXHIBIT 10.8

                         STRATEGIC ALLIANCE AGREEMENT

         This Strategic Alliance Agreement ("Strategic Alliance" or "Agreement")
is made and entered into as of the 20th day of April, 2000, by and between Click
Commerce, Inc., a Delaware corporation ("Click") and Andersen Consulting, LLP,
an Illinois Limited Liability Partnership ("Andersen Consulting") on behalf of
and for the benefit of all entities throughout the world comprising the Andersen
Consulting worldwide organization (i.e., any Andersen Consulting entity having a
Member Firm Interfirm Agreement with Andersen Worldwide or any successor entity
to Andersen Worldwide, or any other entity controlling, controlled by or under
common control with such an entity or a partner of Andersen Worldwide or any
successor entity) (the "AC Affiliates").

                                   RECITALS:
                                   ---------

         WHEREAS, Andersen Consulting has developed a substantial reputation and
goodwill in the field of providing consulting services under the ANDERSEN
CONSULTING service mark (together with its logos and other intellectual property
relating thereto, the "Andersen Consulting Mark");

         WHEREAS, Click has developed a substantial reputation and goodwill in
the field of computer software solutions and related consulting services under
the CLICK, CLICK COMMERCE and CLICK INTERACTIVE trademarks and service marks and
is pursuing protection of the trademark ENTERPRISE CHANNEL MANAGEMENT (together
with its logos and other intellectual property relating thereto, the "Click
Marks").

         WHEREAS, Andersen Consulting and Click believe that by working together
to jointly enhance their products and services offering in the e-commerce area
they will be able to achieve mutual and independent success in the marketplace
as a result of promoting Click's products and services and Andersen Consulting's
services to their respective clients. It is therefore the desire of Andersen
Consulting and Click to work together in a strategic alliance to jointly market
Click's products and services and Andersen Consulting's services.

         Now, therefore, in consideration of the foregoing, and other good and
valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, Click and Andersen Consulting hereby agree as follows:

                              ARTICLE I - PURPOSE
                              -------------------

         1.1  Strategic Alliance Business Goals. The purpose of this Strategic
              ---------------------------------
Alliance is to achieve mutual and independent success in the marketplace through
the promotion of Click products and services and Andersen Consulting services.
In this regard, it is the intention of Andersen Consulting and Click to work
together to achieve the following joint business goals: (i) market and sell
Click products and services to Designated Customers (as defined herein), (ii)
market and sell Andersen Consulting services to Designated Customers and Click
accounts; and

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(iii) design and develop mutually agreeable marketing materials, such as white
papers, industry and product analyses and other similar collateral materials,
and develop and implement mutually agreeable marketing strategies tailored to
the needs of the Designated Customers. It is the intention of the parties hereto
that with respect to any third party that is determined to be a Designated
Customer pursuant to the terms of this Agreement, all Click software, products
and services provided to such Designated Customer, by either of Andersen
Consulting or Click, either independently or in conjunction with another party,
shall be provided pursuant to this Agreement (except as otherwise specified in
this Agreement).

         1.2  Designated Customers. "Designated Customer" means an AC Entity (as
              --------------------
defined below) or any other third party that (A) is introduced to Click by
Andersen Consulting, AC Affiliates or other parties reasonably agreed to by
Andersen Consulting and Click (Andersen Consulting together with such AC
Affiliates and other entities, the "AC Entities") or (B) is introduced to
Andersen Consulting by Click, and, in either case, as to which personnel of the
AC Entities play a material role, and the AC Entities provide a reasonable level
of assistance, in the marketing efforts related to such party's decision to
purchase or license software, goods or services from Click. Andersen Consulting
shall notify Click that the introduced party would constitute a Designated
Customer if a sale or license shall be consummated. If Click disagrees with such
designation, Click shall notify Andersen Consulting within ten (10) days after
delivery of the designation notice by Andersen Consulting. Click may indicate
its disagreement with such designation only if Click or any other party with
which Click has engaged in joint marketing activities (a "Click Marketing
Partner") has had material contact with the prospect which is the subject of the
designation in the 180 days prior to receipt of the designation notice and begun
material marketing activities. The parties shall diligently pursue the
consummation of a Qualifying Order with each Designated Customer, and Click
shall negotiate in good faith a Qualifying Order with such Designated Customer.
The parties agree to negotiate in good faith to resolve any disputes with
respect to the designation of Designated Customers in a manner that reflects the
relative contribution of the parties..

         1.3  Exclusions from the Strategic Alliance.  The parties specifically
              --------------------------------------
intend to exclude from the parties' efforts hereunder all marketing efforts made
by Click pursuant to strategic alliance or system integration agreements between
Click and third parties identified by Click to Andersen Consulting in writing
which is acknowledged by Andersen Consulting prior to the date hereof and one
additional Click Preferred Systems Integrator.

         1.4  Non-United States Matters.  In some cases, specific implementation
              -------------------------
of this relationship in countries other than the United States will need to be
reflected in local country addendum added to this Agreement from time to time,
executed by the AC Affiliate in the country and an entity representing Click.

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               ARTICLE II - OPERATION OF THE STRATEGIC ALLIANCE
               ------------------------------------------------

         2.1  Management of the Relationship. The parties will each designate an
              ------------------------------
executive sponsor to participate on a Management Committee who will be
responsible for the coordination of all activities between Click and Andersen
Consulting, the facilitation of information flow between the two companies and
the coordination of joint marketing and sales opportunities. The
responsibilities of each party in this Strategic Alliance will be determined by
this Agreement and the Management Committee. All decisions by the Management
Committee with respect to Designated Customers and otherwise with respect to the
operation of the Strategic Alliance must be unanimously approved by both members
of the Management Committee. Andersen Consulting hereby designates Roy Phelan as
its executive sponsor and Click hereby designates Randy A. Gray as its executive
sponsor. Either party may replace its executive sponsor, provided that such
successor shall be reasonably acceptable to the other party and at a similar
level of responsibility within such party's organization.

         2.2  Meetings of the Management Committee. Meetings of the Management
              ------------------------------------
Committee may be conducted in person or by teleconferencing and shall be with
such frequency as the parties may agree upon. The location of meetings conducted
in person shall be as nearly evenly distributed as is practicable between the
home offices of Andersen Consulting and Click. Each party shall be responsible
for its own travel expenses in attending meetings of the Management Committee.

         2.3  Development of Business Plans and Budgets. The Management
              -----------------------------------------
Committee may review any written business plans and financial budgets that are
prepared by either party with respect to any marketing project which the parties
agree to undertake or develop jointly. Each party will use its diligent and
reasonable efforts to develop or implement each project in accordance with the
agreed upon business plan and budget.

         2.4  Pricing and Payment Terms to Designated Customers. Each party
              -------------------------------------------------
shall have the right to designate pricing and payment terms in accordance with
its own business practices to all of its own accounts and the pricing and terms
of each party's products and services directly sold by that party to Designated
Customers. On a case-by-case basis, the Management Committee will have the
ability to request that the parties modify their pricing to Designated Customers
when appropriate in light of the competition for similar products and services
and taking into account the value received by the Designated Customer associated
with the products and services provided by this Strategic Alliance.

         2.5  Independent Contractors. Nothing contained in this Agreement shall
              -----------------------
be construed as creating a relationship between Andersen Consulting and Click
other than that of independent contractors. The parties are independent
contractors and neither party shall have any liability for the acts or omissions
of the other party or the other party's clients or employees. Each party shall
not be deemed an employee or agent of the other party or of any other company
affiliated with the other party. Accordingly, each party shall have no right,
power or authority to act, and shall not act, in any way in the name of the
other party or its affiliated companies. As

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independent contractors, each party shall pay its own taxes and maintain its own
requisite insurance. The parties shall cooperate in good faith to minimize such
tax liabilities to the extent legally permissible and to incorporate provisions
to recover such taxes into underlying contracts with Designated Customers.
Neither party is responsible to any end user (including, but not limited to,
Designated Customers) for the quality of services or products provided by the
other party. Nothing contained herein is intended to constitute or create a
joint venture or partnership relationship between Click and Andersen Consulting.
Each party is solely responsible for establishing the prices for its own
products and services. Except as otherwise provided in this Agreement or the
agreements contemplated herein, each party shall be responsible for its own
costs and expenses associated with its performance of this Agreement. The
parties shall not, during the term of this Agreement, use the terms "joint
venturer," "co-venturer," "partner," "marketing partner," "partnership,"
"affiliate," or similar terms to describe the relationship between the parties
under this Agreement. Any inadvertent use of such terms is not intended by the
parties either to describe in any manner the relationship of the parties under
this Agreement, or expressly or impliedly to create a legal partnership or joint
venture, or any responsibility by one party for the actions of the other.

                 ARTICLE III - RESPONSIBILITIES OF THE PARTIES

         3.1      Responsibilities of Click. Click shall have primary
                  -------------------------
                  responsibility for the following matters:

         (a)      Evaluating its existing customers and prospects to determine
                  which may provide marketing opportunities for Andersen
                  Consulting's services.

         (b)      Identifying highly qualified accounts as potential Andersen
                  Consulting customers. Click's first proposed customer shall be
                  disclosed to Andersen Consulting upon execution of this
                  Agreement, but shall not be considered a Designated Customer.

         (c)      Providing Andersen Consulting with reasonably sufficient
                  marketing materials for Click's products and services so that
                  Andersen Consulting may effectively perform its obligations
                  under this Agreement.

         (d)      Providing Andersen Consulting with a commercially reasonable
                  level of marketing and sales assistance consistent with
                  standard software industry practices, including but not
                  limited to: responding to phone calls from prospective
                  clients, providing proposal assistance, and providing tutorial
                  assistance.

         (e)      Providing Andersen Consulting with a commercially reasonable
                  level of support similar to that provided to Click personnel
                  in connection with Click's marketing efforts, including
                  answering technical questions, and where mutually agreed by
                  the joint project team leaders, supplying experts to support
                  detailed technical presentations and meetings.

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         (f)      Providing Andersen Consulting with a commercially reasonable
                  level of support similar to that provided to Click personnel
                  in connection with Click's system integration efforts,
                  including supplying, at no cost to Andersen Consulting,
                  documentation and dedicated telephone technical support
                  sufficient for Andersen Consulting to perform its role as a
                  system integrator.

         (g)      In the event Andersen Consulting elects to execute an
                  engagement to provide a Designated Customer with front-line
                  client support, Click shall treat Andersen Consulting
                  personnel in the same manner, and provide to them the same
                  commercially reasonable level of support, that Click would be
                  obligated to provide to employees of such Designated Customer
                  under the support and maintenance agreement between Click and
                  such Designated Customer (which may include telephone
                  technical support) during normal Click's business hours and
                  shall not impose an additional cost on Andersen Consulting
                  related to such services.

         (h)      Providing software maintenance, technical support, software
                  warranty and training services, to Designated Customers at
                  fees not to exceed Click's standard fees. Click agrees to
                  extend to each Designated Customer the same basic warranties
                  and indemnifications with respect to Click's software, goods
                  and services that Click generally extends to its clients;
                  provided, however, that Click shall not provide any warranties
                  or indemnifications with respect to any other software, goods
                  or services provided by Andersen Consulting or any other
                  entity. The terms of Click's warranties shall commence upon
                  delivery of the applicable product(s) to the Designated
                  Customer; provided, however, that upon Andersen Consulting's
                  prior written request, warranty coverage shall be extended for
                  a further period (not to exceed 90 days following installation
                  of the Click software, unless otherwise agreed by the parties)
                  as if the warranty commencement date did not occur until
                  installation and acceptance of the applicable product by the
                  Designated Customer. In such cases, Andersen Consulting shall
                  advise Click when the imputed warranty commencement date
                  commences.

         (i)      Other responsibilities as determined by the Management
         Committee, from time to time.

         3.2      Responsibilities of Andersen Consulting. Andersen Consulting
                  ---------------------------------------
                  shall have primary responsibility for the following matters:

         (a)      Forming a dedicated team of Andersen Consulting consultants
                  whose objective will be to develop new business for Click
                  products and services based on the concept of an Enterprise
                  Channel Management offering.

         (b)      Evaluating its existing customers and prospects to determine
                  which may provide marketing opportunities for Click's products
                  and services.

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         (c)      Identifying highly qualified accounts as Designated Customers.
                  Andersen Consulting's first proposed Designated Customer shall
                  be disclosed to Click upon execution of this Agreement.

         (d)      Designing and developing non-customer specific marketing
                  materials, such as white papers, industry and products
                  analyses and other similar collateral materials to support the
                  joint marketing of Click products and services and Andersen
                  Consulting services under this Strategic Alliance Agreement.

         (e)      Providing Click with reasonably sufficient marketing materials
                  for Andersen Consulting's services so that Click may
                  effectively perform its obligations under this Agreement.

         (f)      Providing Designated Customers access to Andersen Consulting's
                  solution centers or other facilities as jointly agreed by the
                  account team leaders to be necessary or desirable to best
                  fulfill the functions and effectuate the purposes and goals of
                  this Strategic Alliance and subject to Andersen Consulting's
                  then-current policies regarding access to such solution
                  centers and facilities.

         (g)      Other responsibilities as determined by the Management
                  Committee, from time to time.

         3.3      Joint Responsibilities of Click and Andersen Consulting. Click
                  -------------------------------------------------------
and Andersen Consulting shall have joint responsibility for the following
matters:

         (a)      Develop specific objectives, targets and plans for business
                  development for the benefit of both parties, including joint
                  support for marketing, investments, target segments and
                  specific Designated Customers or other accounts.

         (b)      To jointly develop an account strategy and plan with respect
                  to each of the Designated Customers, including the manner of
                  handling marketing to, and the management of, each Designated
                  Customer.

         (c)      To develop an appropriate strategy for maintaining, upgrading,
                  updating and supporting all of the software, goods and
                  services provided to Designated Customers.

         (d)      To prepare mutually acceptable written budgets estimating the
                  cost of implementing any agreed upon marketing effort to an
                  identified Designated Customer.

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         (e)      To provide training to marketing personnel for each of
                  Andersen Consulting and Click to enable each party to
                  effectively promote each other's products and services to
                  Designated Customers and other accounts.

         (f)      Andersen Consulting and Click will coordinate marketing
                  activity related to this Agreement on a regular basis. Such
                  marketing coordination may include:

                         - An initial joint marketing planning meeting
                         - Follow-up planning meetings every 3 months
                         - Monthly opportunity status reporting

         (g)      To create mutually acceptable website links on terms and
                  conditions agreed to by the parties.

         3.4      Andersen Consulting's Appointment as "Click Preferred Systems
                  -------------------------------------------------------------
Integrator". During the term of this Agreement, Andersen Consulting shall be
----------
designated by Click as a "Click Preferred Systems Integrator" on a global basis
and shall promote Andersen Consulting as such where appropriate. Click shall
specify Andersen Consulting as a Click Preferred Systems Integrator on all Click
marketing materials which contain a listing of multiple systems integrators
recommended or preferred by Click. Andersen Consulting may also use this term on
any promotional or marketing materials it creates to market its services. During
the term of this Agreement, Click shall not designate more than one other "Click
Preferred Systems Integrator" or other equivalent designation (other than those
preferred systems integrators identified by Click to Andersen Consulting in
writing and acknowledged and agreed to by the Company prior to the date hereof)
and shall not appoint any systems integrator a status superior to that granted
to Andersen Consulting under this Agreement. This Agreement shall not preclude
Click from working or contracting with any other systems integrator.

         3.5      Project-Based Consulting Services Arrangements. During the
                  ----------------------------------------------
three year term of the Consulting Agreement (as defined below), Andersen
Consulting and Click shall mutually agree to Andersen Consulting separately
providing consulting services to Click under additional arrangement letters to
be attached from time to time to a consulting agreement agreed to by the parties
(the "Consulting Agreement").

         3.6      Use or Recommendation of Competitors. Neither party will be
                  ------------------------------------
restricted from: (i) recommending and marketing services or products which may
be competitive with the services or products of the other party if the
recommending or marketing party reasonably determines that such services or
products will better meet the needs of an entity; or (ii) subject to the terms
of this Agreement, entering into alliance or marketing arrangements with any
third party.

         3.7      Compensation for Sales. Click does not have, and will not
                  ----------------------
establish, an incentive compensation system for its sales personnel that reduces
the basis on which incentives are paid

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for sales of Click products and services to Designated Customers as compared to
sales to other Click customers.

         3.8  Training of Andersen Consulting Personnel. Click will provide, at
              -----------------------------------------
no cost to Andersen Consulting, up to sixteen (16) (i.e., four (4) per calendar
quarter) day-long training sessions on the use, installation and integration of
Click products for up to 10 Andersen Consulting personnel. If requested by
Andersen Consulting, and subject to available Click resources, Click shall
provide, and Andersen Consulting shall pay at 75% of Click's then current
standard rates for, additional requested training sessions. Andersen Consulting
shall be responsible for all costs of its personnel attending such sessions
(including any travel, lodging or similar expenses). Time spent by Andersen
Consulting personnel in such training sessions shall not be credited towards any
Andersen Consulting obligations under this Agreement or otherwise be chargeable
to Click as consulting services.

             ARTICLE IV - COSTS AND PURSUING DESIGNATED CUSTOMERS
             ----------------------------------------------------

         4.1  Costs. In consideration of the mutual benefits anticipated from
              -----
successful efforts hereunder, each party shall bear its own respective costs,
expenses, risks and liabilities arising out of performance under the Strategic
Alliance, including, but not limited to the operations of this Strategic
Alliance and marketing to Designated Customers and other accounts (but excluding
any services provided by Andersen Consulting to Click pursuant to a separate
agreement). Each party may re-coup specified costs related to specific projects
for Designated Customers as approved by the Management Committee.

         4.2  Pursuing Designated Customers.
              -----------------------------

         (a)  With respect to each Designated Customer, the Management Committee
will decide whether the parties will proceed to (1) jointly propose according to
a teaming or prime/sub relationship or (2) jointly propose as two concurrent but
separate contractors. If the prime/subcontract relationship is pursued, the
Management Committee will also determine (i) which party will take the lead as
the prime contractor and which will perform as a subcontractor and (ii) the
scope of services to be provided by each party should a contract be awarded. The
parties agree to exert commercially reasonable efforts to cause each Designated
Customer to award a contract to the party designated as the prime contractor
(the "Prime") and to accept the party designated as the subcontractor (the
"Subcontractor") or to award separate contracts to each of Andersen Consulting
and Click, as applicable.

         (b)  The Prime shall consult with the Subcontractor but shall (i)
              decide, in its reasonable discretion, the final form and content
              of the Strategic Alliance's proposal to the Designated Customer
              and (ii) retain final control of all post-award activities as
              prime contractor, including but not limited to, program
              management, technical direction and client liaison.

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         (c)  The Subcontractor shall (i) timely prepare and submit to the Prime
              the substantive content of the Subcontractor's proposal; and (ii)
              furnish appropriately qualified personnel, information and
              materials as necessary, and shall devote substantial efforts to
              assist the Prime in developing and preparing the proposal.

         (d)  If a contract is awarded to the Prime during the term of this
              Agreement, the Prime and Subcontractor shall enter into a
              subcontract for such work. The parties' obligations under this
              subparagraph are conditioned on the client's approval, if
              required, of the Subcontractor's participation as a subcontractor
              and of the terms and conditions of the subcontract and agreement
              by the parties as to the terms and conditions of the subcontract.
              The parties agree that the subcontract shall include, but not be
              limited to, the scope of work agreed to by the parties.

         4.3  Audit. Not more frequently than once annually, Andersen Consulting
              -----
may audit, or engage an independent certified public accountant to audit, the
books and records of Click related to the fees credited to Andersen Consulting
under the performance warrant to purchase Click common stock issued to Andersen
Consulting by Click on the date hereof (the "Warrant")-. Andersen Consulting
shall pay for the cost of such certified public accountant unless the inspection
reveals that Click under reported the fees credited to Andersen Consulting by
more than ten percent (10%) of the revenues actually remitted. In such case, the
Click shall pay all reasonable costs of the certified public accountant.

                     ARTICLE V - LICENSE AND OWNERSHIP OF
                     ------------------------------------
                         INTELLECTUAL PROPERTY RIGHTS
                         ----------------------------

         5.1  Use of Marks in this Strategic Alliance. Andersen Consulting may
              ---------------------------------------
use the Click Marks as agreed by Click prior to such use, and Click may use the
Andersen Consulting Marks as agreed by Andersen Consulting prior to such use,
and, in each case, only in the manner agreed to by the consenting party. Except
as provided in the prior sentence or as otherwise agreed by the parties, neither
party shall use the other party's trademarks or service marks without the prior
written consent of the other party.

         5.2  Use of Click Marks. Subject to the terms and conditions of this
              ------------------
Agreement, following the consent of Click with regard to Click Marks as
contemplated by Section 5.1 (each a "Click Disclosure Agreement"), Click hereby
grants to Andersen Consulting a license to use the Click Marks solely as
provided in the Click Disclosure Agreement in connection with promoting Click's
software, goods and services pursuant to this Agreement. Andersen Consulting
agrees to use the Click Marks solely in the form provided to Andersen Consulting
by Click, and otherwise in accordance with Section 5.1 hereof and Click's
then-current trademark use policies, as well as any written instructions given
by Click. Andersen Consulting recognizes and acknowledges that the Click Marks
represent valuable goodwill and must be used only in connection with goods and
services of the highest quality. Andersen Consulting agrees that with regard to
its use of the Click Marks, that it shall not act in any manner which would be
reasonably expected to impair or reduce their value, or use them in connection
with any products

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or services which are or could be inconsistent with the image and goodwill
represented by the Click Marks. Andersen Consulting agrees that the Strategic
Alliance's use, or its use of the Click Marks shall inure to the benefit of
Click. Ownership of the Click Marks shall always be held by Click, and Click
shall not at any time challenge, contest or call into question the validity, or
Click's rights in, the Click Marks or any registration thereof. Andersen
Consulting agrees that the scope of the foregoing license does not permit
Andersen Consulting to use Click's intellectual property other than in
connection with the performance of its responsibilities pursuant to this
Agreement.

         5.3  Use of Andersen Consulting Mark. Subject to the terms and
              -------------------------------
conditions of this Agreement, following the consent of Andersen Consulting with
regard to Andersen Consulting Marks as contemplated by Section 5.1 (the
"Andersen Consulting Disclosure Agreement"), Andersen Consulting hereby grants
to Click a license to use the Andersen Consulting Mark solely as provided in the
Andersen Consulting Disclosure Agreement, in connection with promoting Andersen
Consulting's services pursuant to this Agreement. Click agrees to use the
Andersen Consulting Marks solely in the form provided to Click by Andersen
Consulting in accordance with Section 5.1 hereof and Andersen Consulting's
then-current trademark use policies, as well as any written instructions given
by Andersen Consulting as to use of the Andersen Consulting Mark. Click
recognizes and acknowledges that the Andersen Consulting Marks represent
valuable goodwill and must be used only in connection with services of the
highest quality. Click agrees that with regard to its use of the Andersen
Consulting Marks, that it shall not act in any manner which would be reasonably
expected to impair or reduce the value of any of the Andersen Consulting Mark,
or use the Andersen Consulting Mark in connection with any products or services
which are or could be inconsistent with the image and goodwill represented by
the Andersen Consulting Mark. Click agrees that the Strategic Alliance's use, or
its use of the Andersen Consulting Mark shall inure to the benefit of Andersen
Consulting. Ownership of the Andersen Consulting Marks shall always be held by
Andersen Consulting, and Click shall not at any time challenge, contest or call
into question the validity, or Andersen Consulting's rights in, the Andersen
Consulting Mark or any registration thereof. Click agrees that the scope of the
foregoing license does not permit Click to use Andersen Consulting's
intellectual property other than in connection with the performance of its
responsibilities pursuant to this Agreement.

         5.4  Intellectual Property Rights.
              ----------------------------

         (a)  Each party will retain ownership of any assets or materials they
              bring to this Agreement, such as software, designs, methodology
              and knowledge capital. Unless otherwise agreed to, the parties
              will each directly license their own materials to the Designated
              Customer. Intellectual property rights and licenses with respect
              to software developed by Andersen Consulting for Click in
              connection with Click products shall be covered by separate
              agreements between the parties and such Designated Customers.

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         (b)  Notwithstanding anything to the contrary herein, the provisions of
              this Section 5.4(b) relate solely to the development of certain
              items, including, but not limited to, high level software
              interface designs, high level product offering customization
              information, documentation, marketing collateral, workplans and
              training materials (collectively, "Materials") to be used in
              connection with this Strategic Alliance during the joint marketing
              and/or the engagement process with prospective clients. Materials
              shall not include any items or deliverables developed for or
              licensed to a party by the other under a separate contractual
              arrangement. As between the parties, the ownership and
              intellectual property rights to the Materials will fall into the
              following three categories:

              (i)     Click Developed and Owned: All Materials developed by
                      Click's personnel and any software and product offering
                      related items (such as training, documentation and
                      marketing collateral) upon which Click contributes
                      materially (financial or otherwise) to the development of
                      will be considered to be owned by Click. If such Materials
                      contain Confidential Information of Andersen Consulting,
                      the applicable portions of such Materials will be
                      designated as such and will be distributed subject to the
                      terms of a proprietary information agreement agreed to by
                      Andersen Consulting.

              (ii)    Andersen Consulting Developed and Owned: Any Materials
                      developed by Andersen Consulting or a sales prospect with
                      minimal assistance from Click personnel or minimal
                      financial contribution by Click will be owned by Andersen
                      Consulting. If such Materials contain Confidential
                      Information of Click, the applicable portions of such
                      Materials will be designated as such and will be
                      distributed subject to the terms of a proprietary
                      information agreement agreed to by Click.

              (iii)   Jointly Developed: Ownership rights to Materials jointly
                      developed by Click and Andersen Consulting will be jointly
                      shared by the parties. Neither party shall have any
                      obligation to account to the other for its use of any
                      jointly owned Materials; provided, however, that neither
                      party shall license or provide access to such jointly
                      owned Materials to a competitor of either Andersen
                      Consulting or Click, or create an alliance involving any
                      such jointly owned Materials with such a competitor,
                      without the prior written agreement of the other party.

         (f)  The parties will cooperate with each other and execute such other
              documents as may be appropriate to achieve the objectives of this
              Section. Notwithstanding the above provisions of this Section
              regarding ownership, each party shall have a license to use
              Materials owned by the other party (as provided for in this
              Section) as necessary to fulfill the purposes of this Agreement.

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         (g)  Subject to each party's confidentiality obligations, each party
              reserves the right to use any skills, knowledge or techniques used
              or acquired while providing services to or for a prospective
              client, provided such skills, knowledge or techniques are not
              owned by the other party.

         5.5  Limited Marketing License. Subject to the terms and conditions of
              -------------------------
              this Agreement, Click hereby grants to the AC Entities a
              worldwide, non-exclusive, non-transferable, paid-up license to
              market, promote, use, install, copy, reproduce, and display, on an
              as-needed basis, Click's software and product offering, and on a
              case-by-case basis with the prior consent of Click, to develop
              enhancements, modifications, and derivative works of such software
              and product offering during the term of this Agreement for the
              following purposes: marketing, promoting and demonstrating the
              software and product offerings in exhibits, in all present and
              future Andersen Consulting facilities, and to potential sales
              prospects; developing and demonstrating implementation methodology
              and application programs utilizing the Click's software and
              product offerings; training Andersen Consulting personnel; and in
              conjunction with providing products and services to clients of
              Click and Andersen Consulting.

         5.6  Licenses for Embedded Software. Click will be solely responsible
              ------------------------------
              for obtaining any and all rights necessary to allow Andersen
              Consulting to market, in accordance with this Agreement, any third
              party components contained in Click's software and/or product
              offering, including responsibility for any administrative or
              financial arrangements in relation to such third party components.

         5.7  Non-Solicitation of Employees. For the period of this Agreement
              -----------------------------
and for one (1) year after any termination or expiration hereof, neither party
shall directly, or indirectly through any other individual, person or entity
owned or controlled by any of them, solicit for employment or employ any
"Employee" of the other party. For purposes of this Section 5.7, "Employee"
shall mean and include all persons employed by a party in relation to the
performance of any services related to this Agreement. However, either party
shall have the right to hire any Employee who, without other solicitation
targeted to such Employee, responds to employment advertising in the newspapers,
trade publications, website or other public commercial media or any unsolicited
walk-in candidates not related to this Agreement. The parties expressly
acknowledge the materiality of this covenant.

                       ARTICLE VI - TERM AND TERMINATION
                       ---------------------------------

         6.1  Initial Term. Unless otherwise terminated as hereinafter set
              ------------
forth, this Agreement shall be effective as of the date of execution by both
parties and continue in force for a period of three (3) years to and including
____, 2003 (the "Initial Term").

                                       12
<PAGE>

         6.2  Additional Terms. Unless terminated by either party by written
              ----------------
notice served thirty (30) days prior to the expiration of the Initial Term or
any additional term, the term of this Agreement will be extended for successive
one year periods.

         6.3  Termination Upon Default. If either party defaults at any time in
              ------------------------
the performance of its material obligations hereunder, and such default is not
cured within thirty (30) days after written notice thereof is given to the
defaulting party by the non-defaulting party, the non-defaulting party shall
have the right to terminate this Agreement by giving written notice of
termination to the defaulting party that this Agreement is terminated effective
fifteen (15) days after the date upon which the notice of termination is given.
Notwithstanding the foregoing sentence, either party may terminate this
Agreement immediately upon written notice to the other party in the event such
other party breaches its confidentiality obligations or the intellectual
property licensing provisions of this Agreement.

         6.4  Click Change of Control. Upon a Click Change of Control, Andersen
              -----------------------
Consulting shall have the right to terminate this Agreement by giving written
notice of termination to Click that this Agreement is terminated effective
fifteen (15) days after the date upon which the notice of termination is given.
"Click Change of Control" shall mean the occurrence of any of the following with
regard to Click: (A) the sale, lease, transfer, conveyance, or other disposition
(other than by way of merger or consolidation), in one or a series of related
transactions, of all or substantially all of the assets of Click to any "person"
or "group" (as such terms are used in Section 13(d) and Section 14(d) of the
Securities Exchange Act of 1934, as amended (the "Exchange Act") or any
successor provisions), (B) the adoption of a plan relating to the liquidation or
dissolution of Click, (C) the consummation of a transaction (including, without
limitation, any merger or consolidation) the result of which is that any
"person" or "group" (as defined above) becomes the "beneficial owner" (as
defined in Rule 13d-3 and 13d-5 of the Exchange Act), directly or indirectly, of
more of than 35% of the voting power of Click (excluding from the definition of
"person" the individuals or entities owning common stock of Click on the date of
issuance of this Warrant), (D) the consummation of a transaction (including,
without limitation, any merger or consolidation) the result of which is that any
"person" or "group" (as defined above) which is, or includes, an AC Competitor
becomes the "beneficial owner" (as defined in Rule 13d-3 and 13d-5 of the
Exchange Act), directly or indirectly, of more of than 20% of the voting power
of Click (excluding from the definition of "person" the individuals or entities
owning common stock of Click on the date of issuance of this Warrant), or (E)
the first date on which a majority of the members of the Board of Directors of
Click are not "Continuing Directors". "Continuing Directors" means, as of the
date of determination, any member of the Board of Directors of Click who (x) was
a member of the Board of Directors on the date prior to the transaction or
series of transactions resulting in the Click Change of Control or (y) was
nominated for election or elected to such Board of Directors with the approval
of a majority of the Continuing Directors who were members of such Board of
Directors at the time of such nomination or election. Click shall provide prompt
written notice to Andersen Consulting of any Click Change of Control.

                                       13
<PAGE>

         6.5  Insolvency. Either party shall have the right to terminate this
              ----------
Agreement in the event of the insolvency of the other party.

         6.6  Effect of Termination.
              ---------------------

         (a)  Upon termination or expiration of this Agreement, each party shall
              (1) promptly return to the other party or dispose of as mutually
              agreed, all advertising materials and other properties, including
              all confidential materials, furnished to it by the other party
              pursuant to this Agreement, (2) immediately cease holding itself
              out, in any manner, as affiliated with the other party, except as
              may be provided in any surviving separate agreement, and (3)
              discontinue any and all use of trade names and/or trademarks as
              provided for under this Agreement, except as necessary for either
              party to fulfill its obligations to a Designated Customers and
              under proposals issued to sales prospects.

         (b)  Termination or expiration of this Agreement shall not result in a
              diminution or modification of obligations of either party to
              provide ongoing services to a client or with respect to the
              parties' obligations, if any, relating to any proposals issued
              prior to such termination or expiration. Each party may continue
              to exercise the rights and licenses granted hereunder to the
              extent necessary to allow such party to fulfill its obligations
              under agreements with clients or included in any proposal to a
              sales prospect that was outstanding at the time of termination or
              expiration. Andersen Consulting specifically shall retain the
              right to use the Click's software and/or product offerings for as
              long as necessary to meet any obligations or services that
              Andersen Consulting has undertaken. Andersen Consulting shall also
              continue to have the right to use and access Click's software
              and/or product offerings to allow Andersen Consulting to fulfill
              its obligations to sales prospects to whom a proposal has been
              submitted or to clients to whom Click's software and/or product
              offerings has been implemented. Solely in support of the
              foregoing, Click agrees to provide Andersen Consulting with
              continued access to Click's software and product offerings
              (including source code and documentation) to enable Andersen
              Consulting to meet its obligations to sales prospects and/or to
              clients.

         (c)  In the event of a termination of this Agreement by Andersen
              Consulting pursuant to Section 6.3, Andersen Consulting shall
              have no obligation to pay any amount otherwise required to be paid
              as a result of Andersen Consulting failing to satisfy the revenue
              generation requirements provided for in the Warrant.

               ARTICLE VIII-COMPLIANCE WITH LAWS AND REGULATIONS
               -------------------------------------------------
         Both parties agree to comply with all United States laws and
regulations regarding export licenses or the control or regulation of
exportation or re-exportation of materials supplied to each other hereunder.
Both Andersen Consulting and Click further agree to take the required steps

                                       14
<PAGE>

necessary to satisfy any laws or requirements to declare, file, record or
otherwise render this Agreement valid. Both parties agree not to use all or any
portion of any compensation received hereunder to make or offer a direct or
indirect payment or gift to any employee, officer or representative of any
government or government agency or other instrumentality under circumstances
where the payment or gift would constitute an illegal payment under the laws of
any applicable jurisdiction.

              ARTICLE IX - WARRANTIES/INDEMNIFICATION/LIABILITY
              --------------------------------------------------

         9.1  Warranties.
              ----------

         (a)  EXCEPT AS PROVIDED IN PARAGRAPH (b) BELOW, EACH PARTY ACCEPTS THE
              OTHER PARTY'S MATERIAL UNDER THIS AGREEMENT "AS IS". NEITHER PARTY
              EXTENDS ANY WARRANTIES TO THE OTHER REGARDING THE MATERIAL,
              EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
              WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
              PURPOSE.

         (b)  Each party represents and warrants that:

              i)    the execution, delivery and performance by it of this
                    Agreement is within its powers and has been duly authorized
                    by all necessary action on its part;

              ii)   this Agreement constitutes a legal, valid and binding
                    agreement enforceable against it in accordance with its
                    terms;

              iii)  the execution, delivery and performance of this Agreement by
                    such party will not be in violation of any applicable law or
                    governmental regulation (including, but not limited to, any
                    applicable immigration laws);

              iv)   the execution, delivery and performance of this Agreement
                    does not and will not contravene or conflict with,
                    constitute a default under, or give rise to any right of
                    termination, loss of benefit or other adverse action under
                    any agreement to which it is a party.

         9.2  Indemnification.
              ---------------

         (a)  Click agrees to indemnify and hold harmless the AC Entities, and
              their respective officers, directors, employees, partners,
              principles and agents, and Andersen Consulting agrees to indemnify
              and hold harmless Click, and its officers, directors, employees,
              partners, principles and agents, from and against any and all
              amounts payable under any judgment, verdict, court order or
              settlement payable to third parties (other than affiliates of the
              indemnified party) for death or bodily injury or the damage to or
              loss or destruction of any tangible personal property to the
              extent arising out of the negligence in the performance of this
              Agreement of the indemnifying party.

                                       15
<PAGE>

         (b)  Click agrees to defend, indemnify and hold harmless the AC
              Entities, and their respective officers, directors, employees,
              partners, principles and agents, from any and all liabilities,
              damages, costs and expenses, including reasonable attorneys' fees,
              incurred as a result of any claim asserted by a third party (other
              than affiliates of Click) that any of the Click software or
              product offerings, or any enhancement, update, modification or
              addition to any Click software or product offering created or
              otherwise provided by Click to AC Entities or a Designated
              Customer hereunder or any of Click's services provided to a
              Designated Customer infringe any copyright, United States
              trademark, or any trade secret. Click agrees to promptly notify
              Andersen Consulting of any claims of infringement against Click's
              services, software or product offerings that may be relevant to
              past or future Andersen Consulting engagements or Andersen
              Consulting's marketing activities related to Click products or
              services of which the executive of Click appointed pursuant to
              Section 2.1 has knowledge.

         (c)  Andersen Consulting agrees to defend, indemnify and hold harmless
              Click, and its officers, directors, employees, partners,
              principles and agents, from any and all liabilities, damages,
              costs and expenses, including reasonable attorneys' fees, incurred
              as a result of any claim asserted by a third party (other than
              affiliates of Andersen Consulting) that any of Andersen
              Consulting's services to a Designated Customer infringe any
              copyright, United States trademark or any trade secret. Andersen
              Consulting agrees to promptly notify Click of its knowledge of any
              claims of infringement against Andersen Consulting as a result of
              Andersen Consulting integrating or implementing Click's products
              or software and which may be relevant to past or future Click
              engagements of which the executive of Andersen Consulting
              appointed to pursuant Section 2.1 has knowledge.

         (d)  If any action, suit, proceeding or investigation is commenced, the
              indemnified party shall notify the indemnifying party with
              reasonable promptness in writing, including therewith copies of
              any papers served; provided, however, that any failure by
              indemnified party to notify the indemnifying party shall not
              relieve the indemnifying party from its obligations hereunder
              unless the indemnifying party has been materially prejudiced by
              such delay. Upon receiving any such notification, the indemnifying
              party may elect to assume the defense of any such action, suit,
              proceeding or investigation. In the event the indemnifying party
              fails to assume the defense of any indemnification claim, then
              indemnified party shall have the right to retain counsel of its
              own choice to represent it, and the indemnifying party shall pay
              the reasonable fees, expenses and disbursement of such counsel,
              and such counsel shall, to the extent consistent with its
              professional responsibilities, cooperate with the indemnifying
              party and any counsel designated by the indemnifying party. The
              indemnifying party shall be liable for any settlement of any claim
              against indemnified party made with the indemnifying party's
              written consent, which consent shall not be unreasonably withheld
              or delayed. The indemnifying party shall not, without the prior
              written

                                       16
<PAGE>

               consent of indemnified party (which consent shall not be
               unreasonably withheld or delayed), settle or compromise any
               claim, or permit a default or consent to the entry of any
               judgment in respect thereof, unless such settlement, compromise
               or consent includes, as an unconditional term thereof, the giving
               by the claimant to indemnified party of an unconditional and
               irrevocable release from any liability in respect of any such
               claim (except for claims to the extent they resulted from any
               gross negligence or willful misconduct of indemnified party).

         9.3   Limitation of Liability.
               -----------------------

         (a)   Except as provided in Section 9.2, each party's entire liability
               to the other party, and such other party's sole and exclusive
               remedy for damages concerning performance or nonperformance by a
               party under or in relation to this Agreement shall be limited to
               the payment by a party of actual damages of the other party not
               to exceed $100,000.

         (b)   IN NO EVENT SHALL EITHER PARTY BE LIABLE TO THE OTHER PARTY FOR
               ANY CLAIM BASED UPON ANY THIRD PARTY CLAIM OR FOR ANY INDIRECT,
               SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT
               LIMITATION LOSS OF USE, TIME OR DATA, INCONVENIENCE, COMMERCIAL
               LOSS, LOST PROFITS OR SAVINGS) TO THE FULL EXTENT SUCH MAY BE
               DISCLAIMED BY LAW EVEN IF CLICK OR ANDERSEN CONSULTING HAS BEEN
               APPRISED OF THE LIKELIHOOD OF SUCH DAMAGES OCCURRING. No action,
               regardless of form, arising out of this Agreement may be brought
               by either party more than one (1) year after the cause of action
               has accrued.

             ARTICLE X - PROPRIETARY AND CONFIDENTIAL INFORMATION
             ----------------------------------------------------

         10.1  During the term of this Agreement, either party may receive
information that the other party regards as confidential and proprietary. The
parties agree that all information which is clearly marked to indicate its
confidential and proprietary status or which is reasonably discernible as the
confidential information of the other party, if disclosed by one party to the
other in written, graphic, recorded, photographic or any machine readable form,
or disclosed orally and reduced to writing within thirty (30) days after
disclosure, shall be considered "Confidential Information" and shall be subject
to the provisions of this Article X.

         10.2  A party receiving Confidential Information (the "Receiving
Party") shall hold such information in strict confidence and shall not use,
disclose or duplicate such information except for the purpose of, and to the
extent required for, its performance under this Agreement. The Receiving Party
shall permit access to Confidential Information only to its and its affiliates'
partners, principals, directors, officers, employees, attorneys and auditors
having a need to know such information in order to perform fully this Agreement.
The Receiving Party shall ensure that such individuals are informed of the
confidential and proprietary status of such information and

                                       17
<PAGE>

of the restrictions on its use, disclosure and duplication contained in this
Agreement. In no event shall the Receiving Party utilize less than the same
degree of care with respect to the other party's Confidential Information as the
Receiving Party normally utilizes to safeguard and protect its own confidential
and proprietary information, or, in the event that such care is less than a
reasonable degree of care, no less than a reasonable degree of care.

         10.3   The restrictions in this Article X shall not apply:

         (a)      If the Confidential Information is or becomes publicly
                  available without breach of this Agreement;

         (b)      If the Confidential Information is already known to the
                  Receiving Party at the date of disclosure as shown by the
                  Receiving Party's files and records, or it is rightfully
                  obtained by the Receiving Party from a third party without
                  restriction, or is independently developed by the Receiving
                  Party without reliance thereon;

         (c)      If the Disclosing Party has previously provided the
                  Confidential Information to any third party (including client
                  agencies or bureaus) without restriction; or

         (d)      To information independently developed by the Receiving Party
                  without use of the Confidential Information.

         10.4     If the Receiving Party receives a subpoena, court order or
other legal process with respect to the Disclosing Party's Confidential
Information, the Receiving Party shall provide prompt notice to the Disclosing
Party and shall thereafter be entitled to comply with such subpoena, court order
or other legal process; provided, however, that the Receiving Party, if
requested by the Disclosing Party, at the Disclosing Party's own expense, shall
take, or allow the Disclosing Party to take, all reasonable legal steps to
oppose such disclosure. Click may disclose its business relationship with
Andersen Consulting, this Agreement, the Warrant and any other agreements
between the parties only to the extent appropriate or required under applicable
securities laws and regulations, provided that Click will use its reasonable
efforts to give Andersen Consulting as much prior written notice of such
disclosure as possible and, to the extent permitted by applicable law or
regulations, Click shall use commercially reasonable efforts to summarize and/or
redact any terms of such business relationship and contracts that are deemed
confidential by Andersen Consulting. Subject to the reasonable approval of
Click's legal counsel, Click will allow Andersen Consulting to participate in
and to assist Click in preparing any documentation necessary to summarize and/or
redact such confidential information from securities filings.

         10.5     Nothing in this Agreement shall prohibit or restrict either
party's right to develop, use, or market products and services similar to the
Confidential Information of the other party as long as (a) the Receiving Party
shall not thereby breach this Agreement, and (b) such products and services are
independently developed by the Receiving Party without reliance the Disclosing
Party's Confidential Information.

                                       18
<PAGE>

         10.6  Each party shall notify the other (a) immediately upon learning
of any unauthorized use, disclosure or duplication of Confidential Information
or (b) before using any Confidential Information without restriction in reliance
on the foregoing. Except as otherwise expressly set forth herein, no license or
other right or property interest under trademark, patent, copyright or other
legal theory is granted, transferred or implied with respect to Confidential
Information furnished by one party to the other pursuant to this Agreement.

         10.7  Each party represents and warrants to the other that its
disclosure of any information pursuant to this Agreement shall not constitute an
infringement of any trade secret, trademark, patent, copyright or other
proprietary right of any third party and that it has all necessary and
appropriate legal rights to make such disclosures. Each party acknowledges that
the other party will suffer irreparable injury as a result of any misuse,
disclosure or duplication of its Confidential Information by the other party in
violation of the provisions of this Article X. Accordingly, either party shall
be entitled in such event to seek a preliminary and final injunctive relief
without a requirement to post bond in addition to any other applicable remedies,
including the recovery of damages.

         10.8  Upon termination or expiration of this Agreement for any reason,
each party shall, at the option of the other party, immediately return to the
other party or destroy, and certify to the other party the destruction of all
Confidential Information and other documents, materials and properties of the
other party, together with any copies thereof or notes thereon held by each for
the purpose of performing this Agreement. Andersen Consulting and Click may
retain, subject to the terms of this Section, copies of the other party's
Confidential Information required for compliance with its recordkeeping or
quality assurance requirements.

         10.9  In the event a party receives a Request for Proposal ("RFP") or
other information from a sales prospect, and such information is disclosed to
the other party to this Agreement, then such RFP and other information will be
considered Confidential Information. The parties agree not to disclose such RFP
and other information to anyone other than their employees who have a need to
know such information for the purposes of this Agreement without the prior
written permission of the disclosing party.

         10.10 Except as (a) necessary to fulfill its obligations in relation to
the activities contemplated by this Agreement or (b) provided in Section 10.4
hereof, the parties shall keep the terms of this Agreement confidential.

                          ARTICLE XI - MISCELLANEOUS
                          --------------------------

         11.1 Amendment. Except as expressly provided herein, neither this
              ---------
Agreement nor any term hereof may be amended, waived, modified, supplemental,
discharged or terminated other than by a written instrument signed by or on
behalf of all parties to this Agreement.

                                       19
<PAGE>

         11.2  Governing Law. This Agreement shall be governed by and construed
               -------------
in accordance with the internal substantive laws of the State of Illinois,
without giving effect to principles of conflict of law.

         11.3  Notices. All notices, requests and demands, authorizations,
               -------
approvals and other communications permitted or required to be given under the
provisions of this Agreement shall be in writing and shall be deemed to have
been given if delivered by hand or sent by, recognized overnight courier
service, certified or registered mail, postage prepaid, return receipt
requested, addressed as follows:

         If to Andersen Consulting, to:  Andersen Consulting, LLP

                                   Suite 1900
                                   200 Public Square
                                   Cleveland, Ohio 44114
                                   Attention: Roy K. Phelan
                                   Fax: 216-535-6800

                With a copy to:

                                   Douglas G. Scrivner
                                   161 Page Mill Road
                                   Palo Alto, California 94304
                                   Facsimile: (650) 842-2956

         If to Click, to:          Click Commerce, Inc.
                                   Suite 4900
                                   200 East Randolph Street
                                   Chicago, IL  60601
                                   Attention: Randy A. Gray
                                   Fax: (312) 482-8557

         Any party to this Agreement may, by notice given in accordance with the
provisions of this Section, designate a new person or address for notices and
other communications to such party. A notice of communication shall be deemed to
have been given as of (i) the date of delivery if hand delivered, (ii) the next
business day after delivery to a recognized overnight courier service if sent by
courier service, or (iii) three (3) business days after the date when placed in
the U.S. Mail, addressed and mailed as provided herein.

         11.4  Publicity/Press Releases. Neither party may publicly announce
               ------------------------
this Agreement and the relationship this Agreement has established between
Andersen Consulting and Click without the mutual written consent of the parties,
which shall not be unreasonably withheld. The parties intend to issue a mutually
agreed upon joint press release describing the nature of the

                                       20
<PAGE>

agreement and announcing the alliance between the parties. Both parties must
approve, in writing, the press release prior to its release.

         11.5  Entire Agreement. This Agreement, together with the Exhibits
               ----------------
hereto, and, with respect to the matters not specifically covered hereunder,
that certain letter agreement between the parties, dated March 24, 2000,
together constitute the full and entire agreement and understanding among the
parties hereto in respect of the subject matter of this Agreement and such
letter agreement and supersede all prior and contemporaneous agreements and
understandings among the parties hereto in connection with such subject matter.
The terms of this Agreement shall not be contradicted, varied, supplemented or
modified by any course of dealing or course of performance between the parties,
trade practices, evidence of prior, contemporaneous or subsequent oral
agreements or discussions between the parties, or other extrinsic evidence of
any nature. No party shall be liable or bound to any other party in any matter
by any warranties, representations or covenants except as specifically set forth
herein.

         11.6  Captions. The captions contained in this Agreement are included
               --------
only for convenience of reference and do not define, limit, explain or modify
this Agreement or its interpretation, instruction or meaning and are in no way
to be construed as a part of this Agreement.

         11.7  Waiver. Any waiver by any party of a breach of any provisions of
               ------
this Agreement shall not operate as or be construed to be a waiver of any other
breach of that provision or of any breach of any other provision of this
Agreement. The failure of any party to insist upon strict adherence to any term
of this Agreement on one or more occasions shall not be construed as a waiver or
deprive that party of the right thereafter to insist upon strict adherence to
the term or any other term of this Agreement.

         11.8  Severability. If any of this Agreement shall be determined to be
               ------------
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions of this Agreement shall not in any way be affected or
impaired thereby, and if any provision is inapplicable to any person or
circumstance, it shall nevertheless remain applicable to all other persons and
circumstances. It is the intention of each party to this Agreement that if any
provisions of this Agreement is susceptible to two or more constructions, one of
which would render the provision enforceable and the other or others which would
render the provision unenforceable, then the provision shall have the meaning
which renders it enforceable.

         11.9  Counterparts. This Agreement may be executed in any number of
               ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

         11.10 Assignment. No party to this Agreement may sell, assign,
               ----------
transfer, pledge, hypothecate or otherwise convey any of its rights, or delegate
any of its duties, under this Agreement without the prior written consent of the
other parties hereto, other than by operation of law. Such consent shall not be
unreasonably withheld. Any attempted sale, assignment,

                                       21
<PAGE>

transfer conveyance, or delegation in violation of this Section shall be void
and shall not relieve the party attempting to make such assignment of any
liability hereunder; provided, however, that, subject to Andersen Consulting's
right to terminate this Agreement following a Click Change of Control, nothing
contained in this Section 11.10 (or in Section 11.11 below), shall preclude or
otherwise restrict either party from selling equity or assets of its business to
a third party. Notwithstanding the foregoing, Andersen Consulting shall have the
right to cause this Agreement to be performed, in whole or in part, by an AC
Affiliate.

         11.11 Successors and Assigns. All of the terms and provisions of this
               ----------------------
Agreement by or for the benefit of the parties hereto shall be binding upon and
inure to the benefit of their respective successors, permitted assigns, heirs
and personal representatives (including successive, as well as immediate
successors, assigns, heirs and personal representatives).

         11.12 No Third Party Beneficiaries. This Agreement is made for the sole
               ----------------------------
benefit of the parties hereto and their respective successors, permitted
assigns, heirs and personal representatives and no other person or entity is
intended to or shall have any rights hereunder, whether as a third party
beneficiary by assignment under operation of law or otherwise.

         11.13 Insurance. During the term of this Agreement each party shall
               ---------
maintain insurance coverage of a kind and in an amount that is commercially
reasonable and shall provide to the other party upon request certificates of
insurance coverage and shall promptly notify the other party of the cancellation
of any insurance policy maintained pursuant to this paragraph.

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

ANDERSEN CONSULTING, LLP                CLICK COMMERCE, INC.

By: ________________________________    By: ________________________________
Title: _____________________________    Title: _____________________________

                                       22<PAGE>

                                                                    Exhibit 10.9

THE SECURITIES REPRESENTED BY THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AND HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A
VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE
OR DISTRIBUTION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT
RELATED THERETO OR AN OPINION OF COUNSEL IN A FORM SATISFACTORY TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933 OR SOLD
PURSUANT TO RULE 144(k), THE COMPLIANCE WITH WHICH IS DETERMINED TO THE
REASONABLE SATISFACTION OF THE COMPANY.

                             CLICK COMMERCE, INC.

                       Warrant to Purchase Common Stock

                                818,226 Shares

                    April 20, 2000 (the "Date of Issuance")

     Click Commerce, Inc. (the "Company"), for value received, hereby certifies
that Andersen Consulting, LLP, or its permitted registered assigns (the
"Registered Holder"), is entitled, subject to the terms set forth below, to
purchase from the Company up to 818,226 shares (as adjusted from time to time
pursuant to the provisions of this Warrant) of Common Stock of the Company, at a
purchase price of $12.222 per share. The shares purchasable upon exercise of
this Warrant and the purchase price per share, as adjusted from time to time
pursuant to the provisions of this Warrant, are sometimes hereinafter referred
to as the "Warrant Stock" and the "Purchase Price," respectively.

     1.   Exercise.
          --------

          (a)  Vesting. This Warrant shall vest for 10% of the total number of
               -------
shares of Warrant Stock for each $4 million of cumulative Qualifying Revenue (as
defined below) under Qualifying Orders (as defined below) placed by Designated
Customers (as defined below) (each such $4 million increment is referred to
herein as a "$4 Million Increment"). Upon a Company Change of Control (as
defined below), the amount of cumulative Qualifying Revenue shall be
automatically increased to the next highest $4 Million Increment regardless of
whether sufficient Qualifying Revenue shall have been generated and a
corresponding amount of Warrant Stock shall vest as of such Company Change of
Control. This Warrant shall be canceled and shall not be exerciseable if, and to
the extent that, any shares of Warrant Stock shall not have vested by the fourth
anniversary of the Date of Issuance as a result of fees received pursuant to
Qualified Orders.

               (i)  "AC" shall mean Andersen Consulting LLP.

               (ii) "AC Affiliate" shall mean and refer to all entities
                    throughout the world comprising the Andersen Consulting
                    worldwide
<PAGE>

                     organization (i.e., any Andersen Consulting entity having a
                     Member Firm Interfirm Agreement with Andersen Worldwide or
                     any successor entity to Andersen Worldwide, or any other
                     entity controlling, controlled by or under common control
                     with such an entity or a partner of Andersen Worldwide or
                     any successor entity). At the request of the Company, AC
                     shall promptly confirm whether any entity is an "AC
                     Affiliate".

               (iii) "AC Competitor" shall mean those entities identified by AC
                     as competitors of AC Affiliates in a written notice to the
                     Company which is acknowledged and agreed to by the Company
                     prior to the Date of Issuance (the "Initial Competitors")
                     and such additional entities as the parties shall
                     reasonably agree from time to time compete with an AC
                     Affiliate in the same manner and to the same extent as the
                     Initial Competitors.

               (iv)  "Designated Customer" means an AC Entity or any other third
                     party that (A) is introduced to the Company by AC, AC
                     Affiliates or other parties reasonably agreed to by AC and
                     the Company (AC together with such AC Affiliates and other
                     entities, the "AC Entities") or (B) is introduced to AC by
                     the Company, and, in either case, as to which personnel of
                     the AC Entities play a material role, and the AC Entities
                     provide a reasonable level of assistance, in the marketing
                     efforts related to such party's decision to purchase or
                     license software, software goods or services from the
                     Company. AC shall notify the Company that the introduced
                     party would constitute a Designated Customer if a sale or
                     license shall be consummated. If the Company disagrees with
                     such designation, the Company shall notify AC within ten
                     (10) days after delivery of the designation notice by AC.
                     The Company may indicate its disagreement with such
                     designation only if the Company or any other party with
                     which the Company has engaged in joint marketing activities
                     (a "Click Marketing Partner") has had material contact with
                     the prospect which is the subject of the designation in the
                     180 days prior to receipt of the designation notice and
                     begun material marketing activities. The parties shall
                     diligently pursue the consummation of a Qualifying Order
                     with each Designated Customer and the Company shall
                     negotiate in good faith a Qualifying Order with such
                     Designated Customer. The parties agree to negotiate in good
                     faith to resolve any disputes with respect to the
                     designation of Designated Customers in a manner that
                     reflects the relative contributions of the parties.

               (v)   "Expiration Date" means the third anniversary of this
                     Agreement.

               (vi)  "Qualifying Order" means a definitive agreement (including
                     any purchase order and amendments to an agreement or
                     additional

                                       2
<PAGE>

                     purchase orders issued under an agreement) for the purchase
                     or license of software, software goods and/or services from
                     the Company or a subsidiary entered into on or prior to the
                     Expiration Date.

               (vii) "Qualifying Revenue" shall mean, with respect to each
                     Qualifying Order, fees (including software licenses and
                     consulting fees and on-going maintenance and support
                     services but excluding any taxes (other than taxes based on
                     the Company's net income), interest or similar charges with
                     respect to such purchase) determined as follows: (A) upon
                     execution of the Qualifying Order, 50% of the fees
                     indicated in the Qualifying Order to be received by the
                     Company or its subsidiaries (the "Initial Credit") shall
                     constitute "Qualifying Revenue" and (B) following the
                     initial recognition by the Company of fees under such
                     Qualifying Order equal to the Initial Credit, fees
                     initially recognized by the Company under such Qualifying
                     Order on or before the fourth anniversary of the Date of
                     Issuance shall constitute "Qualifying Revenue". Within 30
                     days following the end of each fiscal quarterly period or
                     within 10 days prior to the expiration or termination of
                     this Warrant for the period through such expiration or
                     termination, the Company shall give notice to the
                     Registered Holder of the recognition of such fees during
                     such immediately preceding quarterly period. The Company
                     shall calculate the recognition of fees pursuant to this
                     subsection in the same manner which the Company calculates
                     recognition of its revenue for financial accounting
                     purposes (which shall be in accordance with generally
                     accepted accounting procedures consistently applied)
                     provided that fees recognized for purposes of this
                     subsection shall not be subject to any subsequent
                     adjustment or amortization requirement.

          (b)  Manner of Exercise. Subject to the provisions of Section 1(a)
               ------------------
above, this Warrant may be exercised by the Registered Holder, in whole or in
part, by surrendering this Warrant, with the notice of exercise and if not
previously executed by the Registered Holder, the stockholder and investor
joinder agreement, appended hereto as Exhibits A and B, respectively, duly
executed by such Registered Holder or by such Registered Holder's duly
authorized attorney, at the principal office of the Company, or at such other
office or agency as the Company may designate, accompanied by payment in full of
the Purchase Price payable in respect of the number of shares of Warrant Stock
purchased upon such exercise. The Purchase Price may be paid by cash, check,
wire transfer, by the surrender of promissory notes or other instruments
representing indebtedness of the Company to the Registered Holder or by the
delivery of vested Warrants in a cashless exercise pursuant to Section 2(f)
hereof.

          (c)  Exercise Dates. This Warrant may be exercised only after the
               --------------
earlier of (i) the number of shares of Warrant Stock being acquired have vested
in accordance with Section 1(a) above, or (ii) the closing date of a "Company
Change in Control" transaction with respect to

                                       3
<PAGE>

the Company; provided, however, that this Warrant may not be exercised prior to
the first anniversary of the Date of Issuance. This Warrant may not be exercised
after the fourth anniversary of the Date of Issuance.

               (i)  "Company Change of Control" shall mean the occurrence of any
                    of the following with regard to the Company: (A) the sale,
                    lease, transfer, conveyance, or other disposition (other
                    than by way of merger or consolidation), in one or a series
                    of related transactions, of all or substantially all of the
                    assets of the Company to any "person" or "group" (as such
                    terms are used in Section 13(d) and Section 14(d) of the
                    Securities Exchange Act of 1934, as amended (the "Exchange
                    Act") or any successor provisions), (B) the adoption of a
                    plan relating to the liquidation or dissolution of the
                    Company, (C) the consummation of a transaction (including,
                    without limitation, any merger or consolidation) the result
                    of which is that any "person" or "group" (as defined above)
                    becomes the "beneficial owner" (as defined in Rule 13d-3 and
                    13d-5 of the Exchange Act), directly or indirectly, of more
                    of than 35% of the voting power of the Company (excluding
                    from the definition of "person" the individuals or entities
                    owning common stock of the Company on the date of issuance
                    of this Warrant), (D) the consummation of a transaction
                    (including, without limitation, any merger or consolidation)
                    the result of which is that any "person" or "group" (as
                    defined above) which is, or includes, an AC Competitor
                    becomes the "beneficial owner" (as defined in Rule 13d-3 and
                    13d-5 of the Exchange Act), directly or indirectly, of more
                    of than 20% of the voting power of the Company (excluding
                    from the definition of "person" the individuals or entities
                    owning common stock of the Company on the date of issuance
                    of this Warrant) or (E) the first date on which a majority
                    of the members of the Board of Directors of the Company are
                    not "Continuing Directors" (as defined below).

               (ii) "Continuing Directors" means, as of the date of
                    determination, any member of the Board of Directors of the
                    Company who (x) was a member of the Board of Directors on
                    the date prior to the transaction or series of transactions
                    resulting in the Company Change in Control or (y) was
                    nominated for election or elected to such Board of Directors
                    with the approval of a majority of the Continuing Directors
                    who were members of such Board of Directors at the time of
                    such nomination or election.

          (d)  Effective Time of Exercise. Each exercise of this Warrant shall
               --------------------------
be deemed to have been effected immediately prior to the close of business on
the day on which this Warrant shall have been surrendered to the Company as
provided in Section 1(b) above. At such time, the person or persons in whose
name or names any certificates for Warrant Stock shall be

                                       4
<PAGE>

issuable upon such exercise as provided in Section 1(f) below shall be deemed to
have become the holder or holders of record of the Warrant Stock represented by
such certificates.

          (e)  Delivery to Holder. Within ten days after the exercise of this
               ------------------
Warrant, in whole or in part, the Company will cause to be issued in the name
of, and delivered to, the Registered Holder, or as such Registered Holder (upon
payment by such Registered Holder of any applicable transfer taxes) may direct:

               (i)  a certificate or certificates for the number of shares of
                    Warrant Stock to which such Registered Holder shall be
                    entitled, and

               (ii) in case such exercise is in part only, a new warrant or
                    warrants (dated the date hereof) of like tenor, calling in
                    the aggregate on the face or faces thereof for the number of
                    shares of Warrant Stock equal (without giving effect to any
                    adjustment therein) to the number of such shares called for
                    on the face of this Warrant minus the number of such shares
                    purchased by the Registered Holder upon such exercise.

          (f)  Net Exercise. In lieu of cash exercising this Warrant, the
               ------------
Registered Holder may elect to receive shares equal to the value of this Warrant
(or the portion thereof being canceled) by surrender of this Warrant at the
principal office of the Company together with notice of such election, in which
event the Company shall issue to the holder hereof a number of shares of Warrant
Stock computed using the following formula:

                                    Y (A - B)
                                   -----------

                                      X = A

          Where

          X -- The number of shares of Warrant Stock to be issued to the
               Registered Holder.

          Y -- The number of shares of Warrant Stock as to which this Warrant is
               being exercised.

          A -- The fair market value of one share of the Company's Common Stock.

          B -- The Exercise Price (as adjusted to the date of such
               calculations).

          For purposes of this Section 1(f), the fair market value of Common
Stock shall mean the average of the closing sale prices of the Common Stock
quoted on the Nasdaq Stock Market or the average of the high and low prices
reported in the consolidated reporting system if the Common Stock is traded on
any exchange, or the average of the bid and asked prices of the Common Stock on
such other over-the-counter market in which the Common Stock may be traded,
whichever is applicable, for the ten (10) trading days prior to the date of
determination of fair market value (or such shorter period of time during which
such stock was traded over-the-

                                       5
<PAGE>

counter or on such exchange). If the Common Stock is not traded on the over-the-
counter market or on an exchange, the fair market value shall be the price per
share as shall be determined in good faith by the Company's Board of Directors.
The procedure for determination of the fair market value of the Common Stock as
described in this Section 1(f) is referred to as the "Fair Market Value
Procedure".

     2.   Adjustments.
          -----------

          (a)  Stock Splits and Dividends. If outstanding shares of the
               --------------------------
Company's Common Stock shall be subdivided into a greater number of shares or a
dividend in Common Stock shall be paid in respect of Common Stock, the Purchase
Price in effect immediately prior to such subdivision or at the record date of
such dividend shall simultaneously with the effectiveness of such subdivision or
immediately after the record date of such dividend be proportionately reduced.
If outstanding shares of Common Stock shall be combined into a smaller number of
shares, the Purchase Price in effect immediately prior to such combination
shall, simultaneously with the effectiveness of such combination, be
proportionately increased. As appropriate adjustments are made to the purchase
price payable per share, the aggregate Purchase Price payable for the total
number of Warrant Stock purchasable under the Warrant (as adjusted) shall remain
the same. When any adjustment is required to be made in the Purchase Price, the
number of shares of Warrant Stock purchasable upon the exercise of this Warrant
shall be changed to the number determined by dividing (i) an amount equal to the
number of shares issuable upon the exercise of this Warrant immediately prior to
such adjustment, multiplied by the Purchase Price in effect immediately prior to
such adjustment, by (ii) the Purchase Price in effect immediately after such
adjustment.

          (b)  Reclassification. In case of any reclassification or change of
               ----------------
the outstanding securities of the Company or of any reorganization of the
Company (or any other corporation the stock or securities of which are at the
time receivable upon the exercise of this Warrant) or any similar corporate
reorganization on or after the date hereof, then and in each such case, as a
condition to such reclassification, change or reorganization, the holder of this
Warrant, upon the exercise hereof at any time after the consummation of such
reclassification, change, reorganization, merger or conveyance, shall be
entitled to receive, in lieu of the stock or other securities and property
receivable upon the exercise hereof prior to such consummation, the stock or
other securities or property to which such holder would have been entitled upon
such consummation if such holder had exercised this Warrant immediately prior
thereto, all subject to further adjustment as provided in Section 2(a) and
provided the aggregate Purchase Price payable for the total number of Warrant
Stock purchasable under the Warrant (as adjusted) shall remain the same; and in
each such case, the terms of this Section 2 shall be applicable to the shares of
stock or other securities properly receivable upon the exercise of this Warrant
after such consummation.

          (c)  Adjustment for Capital Reorganization, Merger or Consolidation.
               --------------------------------------------------------------
In case of any capital reorganization of the capital stock of the Company (other
than a combination, reclassification, exchange or subdivision of shares
otherwise provided for in this Section 2), or any merger or consolidation of the
Company with or into another corporation, or the sale of all or substantially
all the assets of the Company, then, and in each such case, as a condition of
such reorganization, merger, consolidation, sale or transfer, lawful provision
shall be made (and duly

                                       6
<PAGE>

executed documents evidencing the same shall be delivered to the Registered
Holders) so that the Registered Holder of this Warrant shall thereafter be
entitled to receive upon exercise of this Warrant, during the period specified
herein and upon payment of the Purchase Price then in effect, the number of
shares of stock or other securities or property of the successor corporation
resulting from such reorganization, merger, consolidation, sale or transfer that
a holder of the shares deliverable upon exercise of this Warrant would have been
entitled to receive in such reorganization, consolidation, merger, sale or
transfer if this Warrant had been exercised immediately before such
reorganization, merger, consolidation, sale or transfer, all subject to further
adjustment as provided in this Section 2. The foregoing provisions of this
Section 2(c) shall similarly apply to successive reorganizations,
consolidations, mergers, sales and transfers and to the stock or securities of
any other corporation that are at the time receivable upon the exercise of this
Warrant. If the per-share consideration payable to the Registered Holder hereof
for shares in connection with any such transaction is in a form other than cash
or marketable securities, then the value of such consideration shall be
determined in good faith by the Company's Board of Directors. In all events,
appropriate adjustment (as determined in good faith by the Company's Board of
Directors) shall be made in the application of the provisions of this Warrant
with respect to the rights and interests of the Registered Holder after the
transaction, to the end that the provisions of this Warrant shall be applicable
after that event, as near as reasonably may be, in relation to any shares or
other property deliverable after that event upon exercise of this Warrant.

          (d)  Adjustment Certificate. When any adjustment is required to be
               ----------------------
made in the Warrant Stock or the Purchase Price pursuant to this Section 2, the
Company shall promptly (but in any event within 10 days) mail to the Registered
Holder a certificate setting forth (i) a brief statement of the facts requiring
such adjustment, (ii) the Purchase Price after such adjustment and (iii) the
kind and amount of stock or other securities or property into which this Warrant
shall be exercisable after such adjustment.

          (e)  Penalty. In the event that the AC Entities do not generate at
               -------
least $40 million of Qualifying Revenue prior to the fourth anniversary of the
Date of Issuance, then the Registered Holder shall pay to the Company $700,000
(the "Penalty").

     3.   Transfers.
          ---------

          (a)  Unregistered Security. Each holder of this Warrant acknowledges
               ---------------------
that this Warrant and the Warrant Stock have not been registered under the
Securities Act of 1933, as amended (the "Securities Act"), and agrees not to
sell, pledge, distribute, offer for sale, transfer or otherwise dispose of this
Warrant or any Warrant Stock issued upon its exercise in the absence of (i) an
effective registration statement under the Securities Act as to this Warrant or
such Warrant Stock and registration or qualification of this Warrant or such
Warrant Stock under any applicable U.S. federal or state securities law then in
effect or (ii) unless the transfer is pursuant to Rule 144(k), compliance with
which has been determined to the reasonable satisfaction of the Company, or an
opinion of counsel, satisfactory to the Company, that such registration and
qualification are not required. Each certificate or other instrument for Warrant
Stock issued upon the exercise of this Warrant shall bear a legend substantially
to the foregoing effect.

                                       7
<PAGE>

          (b)  Transferability. Subject to the provisions of Section 3(a) hereof
               ---------------
this Warrant and all rights hereunder are transferable, in whole or in part,
upon surrender of the Warrant with a properly executed assignment (in the form
of Exhibit C hereto) at the principal office of the Company.

          (c)  Warrant Register. The Company will maintain a register containing
               ----------------
the names and addresses of the Registered Holders of this Warrant. Until any
transfer of this Warrant is made in the warrant register, the Company may treat
the Registered Holder of this Warrant as the absolute owner hereof for all
purposes; provided, however, that if this Warrant is properly assigned in blank,
the Company may (but shall not be required to) treat the bearer hereof as the
absolute owner hereof for all purposes, notwithstanding any notice to the
contrary. Any Registered Holder may change such Registered Holder's address as
shown on the warrant register by written notice to the Company requesting such
change.

          (d)  Market Stand-Off Agreement.
               --------------------------

               (i)  Without the express prior written consent of the Company's
                    Board of Directors, a Registered Holder shall not, directly
                    or indirectly, offer, sell, pledge, contract to sell
                    (including any short sale), grant any option to purchase or
                    otherwise dispose of this Warrant, any Warrant Stock, or any
                    Common Stock or other securities of the Company held by it
                    or enter into any Hedging Transaction (as defined below)
                    relating to any securities of the Company until 360 days
                    after the effective date of the registration statement for
                    the Company's initial public offering (its "IPO"). For
                    purposes of this Section 3(d), "Hedging Transaction" means
                    any short sale (whether or not against the box) or any
                    purchase, sale or grant of any right (including without
                    limitation, any put or call option) with respect to any
                    security (other than a broad-based market basket or index)
                    that includes, relates to or derives any significant part of
                    its value from the Company's Common Stock. The limitation of
                    this Section 3(d) with respect to pledges of Common Stock
                    shall not apply to a pledge, on or after April 10, 2001, by
                    a stockholder who acquires Common Stock upon exercise of
                    options granted as compensation for services if and to the
                    extent that such pledge serves as security for a loan to the
                    stockholder to satisfy his income tax liabilities arising
                    from such exercise; provided, however, that the pledgee of
                    such security shall enter into a written agreement binding
                    it to each of the pledgor's obligations hereunder with
                    respect to such pledged Common Stock.

               (ii) Notwithstanding anything to the contrary in any agreement
                    between any party hereto and the Company, Registered Holder
                    further agrees that, if the Company's stockholders, prior to
                    the end of the period set forth in Section 3(d)(i), sell (i)
                    a material amount of Common Stock on an arm's-length basis
                    to third parties in one or more private transactions, or
                    (ii) any Common Stock in a

                                       8
<PAGE>

                     registered public offering, Registered Holder and other
                     eligible stockholders of the Company shall be offered the
                     opportunity to participate in such sale on the same terms
                     and in an amount proportional to all other stockholders of
                     the Company based on their respective then-current
                     percentage fully-diluted ownership of Common Stock. For
                     example, if eligible stockholders of the Company (including
                     Investor) could sell an aggregate of 100,000 shares in such
                     a transaction, and the participating stockholders have an
                     aggregate 50% fully-diluted ownership interest in the
                     Company, a participating stockholder with a 10% interest
                     could sell 20,000 shares [10%/50% x 100,000 = 20,000] in
                     such transaction. Notwithstanding the general provisions of
                     the first sentence of this Section 3(d)(ii), any eligible
                     stockholder's (including Registered Holder's) participation
                     in any such transaction is subject to (x) such limitations
                     as may be imposed in good faith by the managing underwriter
                     of the public offering or (y) possible reduction to permit
                     such additional participation by parties as shall be
                     determined by the Company's Board of Directors to be in the
                     Company's best interests in light of its bona fide business
                     considerations. Any transaction complying with the first
                     sentence of this Section 3(d)(ii) shall be automatically
                     deemed to have been consented to by the Company's Board of
                     Directors for purposes of Section 3(d)(i). Any Company
                     stockholder or optionholder that has entered or
                     subsequently enters into a separate agreement with the
                     Company that contains a provision equivalent to this
                     Section 3(d) shall be considered an eligible stockholder of
                     the Company under this Warrant for purposes of determining
                     such holder's proportional participation in any
                     contemplated sale pursuant to this Section 3(d)(ii).

               (iii) In addition to the restrictions contained in Section
                     3(d)(i), in connection with any public offering of the
                     Company's Common Stock after its IPO, Registered Holder, if
                     requested in good faith by the Company and the managing
                     underwriter of the Company's securities, shall further
                     agree not to directly or indirectly, offer, sell, pledge,
                     contract to sell (including any short sale), grant any
                     option to purchase or otherwise dispose of this Warrant,
                     any Warrant Stock or any Common Stock or other securities
                     of the Company held by it or enter into any Hedging
                     Transaction relating to any securities of the Company until
                     90 days after the effective date of the registration
                     statement for such public offering or such earlier date as
                     shall be agreed to by such managing underwriter.

               (iv)  Registered Holder may distribute a portion of the rights to
                     purchase Warrant Stock under this Warrant, Warrant Stock or
                     Common Stock to its equity holders prior to and in
                     connection with any public offering of Common Stock, but
                     only if each such

                                       9
<PAGE>

                    equity holder enters into a written agreement binding it to
                    Registered Holder's obligations hereunder. The Company's
                    Board of Directors may also approve similar transfers to
                    Registered Holder's affiliates and other related parties on
                    a case by case basis, provided, however, that each such
                    transferee enters into a written agreement binding it to
                    Registered Holder's obligations hereunder. Thereafter, each
                    such distributee shall be deemed to be a Registered Holder
                    for purposes of this Section 3(d) with respect to the rights
                    to purchase Warrant Stock under this Warrant or Warrant
                    Stock so transferred or shares of Common Stock so
                    distributed.

          4.   No Impairment. The Company will not, by amendment of its charter
               -------------
or through reorganization, consolidation, merger, dissolution, sale of assets or
any other voluntary action, avoid or seek to avoid the observance or performance
of any of the terms of this Warrant, but will at all times in good faith assist
in the carrying out of all such terms and in the taking of all such action as
may be necessary or appropriate in order to protect the rights of the holder of
this Warrant against impairment.

          5.   Termination. This Warrant (and the right to purchase securities
               -----------
upon exercise hereof) shall terminate at 5:00 p.m. Central Time on the fourth
anniversary of the Date of Issuance. Following a Company Change in Control, the
Registered Holder shall have the right to terminate this Warrant upon written
notice to the Company given within 6 months of the Company Change of Control
and, as of the date of termination specified in such notice, this Warrant shall
terminate and be of no force and effect. Prior to the date of termination
specified in such notice, the Registered Holder shall have the right to exercise
this Warrant with respect to the Warrant Stock vested prior to the date of
termination.

          6.   Representations and Warranties. Except as set forth on Schedule
               ------------------------------
6, the Company hereby represents and warrants to Registered Holder as follows:

               (a)  Organization; Corporate Power. The Company is a corporation
                    -----------------------------
duly organized, validly existing and in good standing under the laws of
Delaware. The Company will have at the date of issuance of this Warrant ("Date
of Issuance") all requisite legal and corporate power to execute and deliver
this Warrant, to sell and issue the Warrant Stock upon exercise hereof in
accordance with the terms set forth herein, and to carry out and perform its
obligations under the terms of this Warrant.

               (b)  Authorization. All corporate action on the part of the
                    -------------
Company, its directors and stockholders necessary for the authorization,
execution, delivery and performance of this Warrant by the Company, the
authorization, sale, issuance and delivery of the Warrant Stock and the
performance of all of the Company's obligations under this Warrant has been
taken or will be taken prior to the Date of Issuance. This Warrant, when
executed and delivered by the Company, shall constitute a valid and binding
obligations of the Company enforceable against the Company in accordance with
its terms. The shares of Common Stock issuable upon conversion of the Warrant
have been duly and validly reserved and, when issued in compliance with the
provisions of this Warrant, will be validly issued, fully paid and
nonassessable, and such

                                       10
<PAGE>

Common Stock will be free of any liens or encumbrances other than those created
by or imposed upon the holders thereof through no action of the Company;
provided, however, that the Warrant Stock may be subject to restrictions on
transfer under this Warrant and under state and/or federal securities laws. The
Warrant Stock is not subject to any preemptive rights or rights of first
refusal.

     7.   Notices of Certain Transactions.
          -------------------------------

          (a)  If the Company shall take a record of the holders of its Common
Stock (or other stock or securities at the time deliverable upon the exercise of
this Warrant) for the purpose of entitling or enabling them to receive any
dividend or other distribution, or to receive any right to subscribe for or
purchase any shares of stock of any class or any other securities, or to receive
any other right, to subscribe for or purchase any shares of stock of any class
or any other securities, or to receive any other right, or

          (b)  Upon the earlier of the Company approving, entering into an
agreement for or consummating any capital reorganization of the Company, any
reclassification of the capital stock of the Company, any consolidation or
merger of the Company, any consolidation or merger of the Company with or into
another corporation (other than a consolidation or merger in which the Company
is the surviving entity and which does not result in any reclassification or
change in the outstanding securities issuable upon exercise of this Warrant), or
any transfer of all or substantially all of the assets of the Company (but in
any event not less than 10 days prior to a Company Change of Control), or

          (c)  Upon the earlier of the Company approving, entering into an
agreement for or consummating of the voluntary or involuntary dissolution,
liquidation or winding-up of the Company,

          (d)  then, and in each such case, the Company will cause to be
delivered by reputable overnight courier to the Registered Holder of this
Warrant a notice specifying, as the case may be, (i) the date on which a record
is to be taken for the purpose of such dividend, distribution or right, and
stating the amount and character of such dividend, distribution or right, or
(ii) the effective date on which such reorganization, reclassification,
consolidation, merger, transfer, dissolution, liquidation or winding-up is to
take place, and the time, if any is to be fixed, as of which the holders of
record of Warrant Stock (or such other stock or securities at the time
deliverable upon such reorganization, reclassification, consolidation, merger,
transfer, dissolution, liquidation or winding-up) are to be determined (but in
any event such notice shall be sent not less than 10 days prior to a Company
Change of Control), Such notice shall be sent at least ten days prior to the
record date or effective date for the event specified in such notice.

                                       11
<PAGE>

     8.   Reservation of Stock. The Company will at all times reserve and keep
          --------------------
available, solely for the issuance and delivery upon the exercise of this
Warrant, such shares of Warrant Stock and other stock, securities and property,
as from time to time shall be issuable upon the exercise of this Warrant.

     9.   Exchange of Warrants. Upon the surrender by the Registered Holder of
          --------------------
any Warrant or Warrants, properly endorsed, to the Company at the principal
office of the Company, the Company will, subject to the provisions of Section 3
hereof, issue and deliver to or upon the order of such Holder, at the Company's
expense, a new Warrant or Warrants of like tenor, in the name of such Registered
Holder or as such Registered Holder (upon payment by such Registered Holder of
any applicable transfer taxes) may direct, calling in the aggregate on the face
or faces thereof for the number of shares of Warrant Stock called for on the
face or faces of the Warrant or Warrants so surrendered.

     10.  Replacement of Warrants. Upon receipt of evidence reasonably
          -----------------------
satisfactory to the Company of the loss, theft, destruction or mutilation of
this Warrant and (in the case or loss, theft or destruction) upon delivery of an
indemnity agreement (with surety if reasonably required) in an amount reasonably
satisfactory to the Company, or (in the case of mutilation) upon surrender and
cancellation of this Warrant, the Company will issue, in lieu thereof, a new
Warrant of like tenor.

     11.  Notices. Any notice required or permitted by this Warrant shall be in
          -------
writing and shall be deemed sufficient upon receipt, when delivered personally
or by courier, overnight delivery service or confirmed facsimile, or 48 hours
after being deposited in the regular mail as certified or registered mail
(airmail if sent internationally) with postage prepaid, addressed (a) if to the
Registered Holder, to the address of the Registered Holder most recently
furnished in writing to the Company and (b) if to the Company, to the address
set forth below or subsequently modified by written notice to the Registered
Holder.

     12.  No Rights as Stockholder. Until the exercise of this Warrant, the
          ------------------------
Registered Holder of this Warrant shall not have or exercise any rights by
virtue hereof as a stockholder of the Company.

     13.  No Fractional Shares. No fractional shares of Warrant Stock will be
          --------------------
issued in connection with any exercise hereunder. In lieu of any fractional
shares which would otherwise be issuable, the Company shall pay cash equal to
the product of such fraction multiplied by the fair market value of one share of
Warrant Stock on the date of exercise, as determined pursuant to the Fair Market
Value Procedures.

     14.  Amendment or Waiver. Any term of this Warrant may be amended or waived
          -------------------
only by an instrument in writing signed by the party against which enforcement
of the amendment or waiver is sought.

                                       12
<PAGE>

     15.  Headings. The headings in this Warrant are for purposes of reference
          --------
only and shall not limit or otherwise affect the meaning of any provision of
this Warrant.

     16.  Governing Law. This Warrant shall be governed, construed and
          -------------
interpreted in accordance with the laws of the State of Illinois, without giving
effect to principles of conflicts of law.

     17.  Severability. If one or more provisions of this Warrant are held to be
          ------------
unenforceable under applicable law, such provision shall be excluded from this
Warrant and the balance of the Warrant shall be interpreted as if such provision
were so excluded and shall be enforceable in accordance with its terms.

                                        CLICK COMMERCE, INC.

                                        By: /s/ Michael W. Ferro, Jr.
                                            -------------------------------
                                            Michael W. Ferro, Jr.

                                        Title: Chief Executive Officer
                                        Address:  200 East Randolph Street
                                                  49th Floor
                                                  Chicago, IL  60601
                                                  Fax Number: (312) 482-8557

                                       13
<PAGE>

EXHIBIT A

                              NOTICE OF EXERCISE

                   (To be executed upon exercise of Warrant)

                             CLICK COMMERCE, INC.

                           Dated: __________________

          The undersigned hereby irrevocably elects to exercise the right of
purchase represented by the within Warrant for, and to purchase thereunder, the
securities of Click Commerce, Inc., as provided for therein, and tenders
herewith either (a) payment of the exercise price in full in the form of cash or
a certified or official bank check in same-day funds in the amount of
$____________________ for _________ such securities or (b) shares of common
stock of Click Commerce, Inc. pursuant to Section 1(f) of the Warrant.

          Please issue a certificate or certificates for such securities in the
name of, and pay any cash for any fractional share to (please print name,
address and social security number):

          Name:

          Address:

          Signature:

Note:     The above signature should correspond exactly with the name on the
          first page of this Warrant or with the name of the assignee appearing
          in the assignment form below.

          If said number of shares shall not be all the shares purchasable under
the within Warrant, a new Warrant is to be issued in the name of said
undersigned for the balance remaining of the shares purchasable thereunder
rounded up to the next higher whole number of shares.
<PAGE>

EXHIBIT B

              Form of Stockholder and Investor Joinder Agreement
              --------------------------------------------------

          Undersigned hereby agrees, effective as of April 20th, 2000, to become
a party to that certain Amended and Restated Stockholders and Rights Agreement
(the "Agreement"), dated as of July 9, 1999, by and among Click Commerce Inc.
(formerly known as Click Interactive, Inc.) and the other parties named therein,
and for all purposes of the Agreement, undersigned shall be included within the
term "Investor" and "Stockholder" (each as defined in the Agreement). The
address and facsimile number to which notices may be sent to undersigned is as
set forth below:

                                        AC Ventures B.V

                                        By:__________________________________
                                        Name:________________________________
                                        Title:_______________________________
                                        Address: c/o Anderson Consulting, LLP
                                                 1661 Page Mill Road
                                                 Palo Alto, California   94304
                                        Fax:
<PAGE>

EXHIBIT C

                                ASSIGNMENT FORM

               FOR VALUE RECEIVED, _____________________________________ hereby
sells, assigns and transfers all of the rights of the undersigned under the
attached Warrant with respect to the number of shares of Warrant Stock covered
thereby set forth below, to:

          Name of Assignee      Address/Fax Number     No. of Shares

          Dated:_________________     Signature: ___________________

          Witness:  __________________________

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