<PAGE>

 Confidential Materials omitted and filed separately with the Securities and
               Exchange Commission. Asterisks denote omissions.

                                                                   Exhibit 10.10

                     SOFTWARE DEVELOPMENT AND OEM AGREEMENT

         THIS SOFTWARE  DEVELOPMENT  AND OEM  AGREEMENT  (this  "Agreement")  is
entered  into as of December  28, 1999 (the  "Effective  Date"),  by and between
MICROSTRATEGY  INCORPORATED,   a  Delaware  corporation   ("MicroStrategy")  and
EXCHANGE APPLICATIONS, INC., a Delaware corporation ("EA").

                                    RECITALS

         1. EA has developed certain proprietary  customer relations  management
("CRM") software, including, without limitation, VALEX(TM) and eXstatic(TM), all
as described in greater detail herein.

         2.  MicroStrategy  desires to develop  certain  industry-specific  data
models for a set of vertical industries,  as described in greater detail herein,
and certain CRM  applications  which will function in connection  with such data
models and with the EA Products (as defined below).

         3. EA desires to  integrate  the  MicroStrategy  Software  (as  defined
herein)  with the data models and CRM  applications  and/or with the EA Products
(as defined  herein) and to  sublicense  such  Exchange  Applications  Solutions
directly to end users.

         4. EA and  MicroStrategy  believe that it is in their  respective  best
interests  that  the  foregoing  data  models,  CRM  applications,   development
environments and certain other developed software (collectively,  the "Developed
Products",  as  defined  and  described  in  greater  detail in  Section  1), be
developed.

         5.  To  achieve  the  development  of the  Developed  Products,  EA and
MicroStrategy  have agreed to engage in certain  joint  development  work and to
grant certain technology licenses as set forth in this Agreement.

         6.  To  facilitate  the  development  of  the  Developed  Products  and
integration of the Developed Products with the EA Products and the MicroStrategy
Software,  MicroStrategy  has agreed to create a business unit  dedicated to the
development and maintenance of the foregoing.

         7. EA and  MicroStrategy  have also  agreed on the basis on which  they
will engage in certain joint marketing efforts to achieve commercial success for
the Developed Products.

         ACCORDINGLY, EA and MicroStrategy agree as follows:

                                    AGREEMENT

1. Definitions. In addition to those terms that are defined where first used,
the following definitions shall apply:

         "Applications"  means the CRM  applications  developed by MicroStrategy
pursuant  to  this  Agreement,  which  will  consist  of a set of  analytic  CRM
functionalities  for certain horizontal and/or vertical industries as applied to
the Data Models. The Applications may include, without
<PAGE>

limitation, customer and segment analysis, sales and channel analysis, campaign
and offer analysis and market basket analysis.

         "Confidential   Information"  means  any  confidential  or  proprietary
information,  including  without  limitation  any source code,  software  tools,
designs,  schematics,  plans or any other  information  relating to any research
project,  work  in  process,   future  development,   scientific,   engineering,
manufacturing,  marketing or business  plan,  or  financial or personnel  matter
relating to either  party,  its present or future  products,  sales,  suppliers,
customers,  employees, investors or business, identified by the disclosing party
as  Confidential  Information,  whether in oral form, or in written,  graphic or
electronic form and marked as confidential or disclosed under circumstances that
would  lead  a  reasonable   person  to  conclude  that  the   information   was
confidential,  including without  limitation,  the source code related to the EA
Products, the MicroStrategy Software and the Developed Products.

         "Data  Models"  means the  industry-specific  models for the storage of
information  developed by  MicroStrategy  pursuant to this Agreement,  which may
include, without limitation, the following vertical industries:  banking, mutual
fund  and  brokerage,  telecommunications,  transportation,  automotive,  retail
catalogue,   business-to-business   high  technology  and   business-to-consumer
Internet.

         "Derivative  Work"  means  a work  which  is  based  on  the  Developed
Products,   such  as  a  revision,   enhancement,   modification,   translation,
abridgement,  condensation,  expansion, or any other form in which the Developed
Products may be recast,  transformed, or adapted, and which, if prepared without
authorization of the owner of the copyright in such product,  would constitute a
copyright infringement.  For purposes hereof, Derivative Work shall also include
any compilation that incorporates a Developed Product.

         "Developed Products" means, collectively, the Data Models, Applications
and certain other  developed  software  developed  pursuant to the Work Plan (as
defined in Section 2.1(a)) as such Work Plan may be amended and/or modified from
time to time pursuant to the terms of the Work Plan.

         "EA Know-How" means the  techniques,  inventions,  practices,  methods,
knowledge, designs, skill and experience relating to the EA Products that are to
be  disclosed by EA to  MicroStrategy  pursuant to this  Agreement  and that are
proprietary to EA.

         "EA  Patents"  means  patents  related  to the EA  Products,  including
without limitation,  all foreign  counterparts,  all substitutions,  extensions,
reissues, renewals, divisions,  continuations and continuations in part relating
to such  patents  and  their  foreign  counterparts,  and  which  are  owned  or
controlled by EA (where  "controlled"  means  licensed by EA with a royalty-free
right to grant sublicenses).

         "EA Products" means EA's  proprietary  CRM and email software  products
and other CRM products and CRM applications,  currently existing or which may be
later developed by EA, including, without limitation, VALEX(TM) and eXstatic(TM)
and which may include third party  licensed  software  products as an integrated
component thereof.

                                      2.
<PAGE>

         "EA  Technology"  means (i) the  inventions,  designs,  discoveries and
processes claimed in the EA Patents and (ii) the EA Know-How.

         "Evaluation" means an installation of an Exchange Applications Solution
(as defined  herein) for a period of sixty (60) days or less under the terms and
conditions  specified  herein during which an end user may evaluate the Exchange
Applications Solution for its internal use.

         "Improvements"  means  any  improvements,   discoveries,  developments,
modifications or derivative works, whether or not patentable.

         "Intellectual  Property  Rights"  means all  current  and future  trade
secrets, copyrights,  patents and other patent rights, trademark rights, service
mark  rights,  mask work rights and any and all other  intellectual  property or
proprietary rights now known or hereafter recognized in any jurisdiction.

         "MicroStrategy Know-How" means the techniques,  inventions,  practices,
methods,  knowledge,  designs,  skill and  experience  that are  proprietary  to
MicroStrategy  and that were employed by MicroStrategy in the development of the
MicroStrategy  Software or will be employed by  MicroStrategy in the development
of the Developed Products, pursuant to this Agreement.

         "MicroStrategy  Patents"  means  patents  related to the  MicroStrategy
Software,   including  without  limitation,   all  foreign   counterparts,   all
substitutions,  extensions,  reissues,  renewals,  divisions,  continuations and
continuations  in part relating to such patents and their foreign  counterparts,
and which are owned or controlled by  MicroStrategy  (where  "controlled"  means
licensed by MicroStrategy with a royalty-free right to grant sublicenses).

         "MicroStrategy  Software" means the entire MicroStrategy  product suite
which is made generally available to end users during the term of this Agreement
and which is set  forth in  Exhibit A in the form in which  such  product  suite
exists as of the Effective Date and as such may be amended by MicroStrategy from
time to time during the term hereof,  subject to the  requirements  set forth in
Section 4.9(g)(ii).

         "MicroStrategy   Technology"   means  (i)  the   inventions,   designs,
discoveries  and  processes  claimed in the  MicroStrategy  Patents and (ii) the
MicroStrategy Know-how.

         "Operative Agreements" means, collectively, this Agreement, the Payment
and Registration Rights Agreement,  the Joint Marketing  Agreement,  the License
Agreement and the Strategy.com Master Affiliation Agreement.

         "Qualified  Event"  means  the sale of all or a  substantial  part of a
party's  assets or a stock sale where  pre-event  shareholders  hold less than a
majority  of the  capital  stock of the  party  after  such  event,  whether  by
acquisition, merger or otherwise.

         "Territory" means the World.

                                      3.
<PAGE>

         "Testing" means the testing of the G. A. version of the Developed
Products contemplated by Section 2.4 to ensure compatibility, in all material
respects, with the Specifications to be developed by the Steering Committee (as
defined in Section 2.1).

         "User  Documentation"  means all instructional and technical  materials
and related literature  provided by MicroStrategy  which is to be distributed to
end users in connection  with the Developed  Products  and/or the  MicroStrategy
Software.

         "VAR Agreement" means the value-added  reseller  agreement  between the
parties that will exist upon conversion of this Agreement in accordance with the
provisions  herein which shall be substantially in the form set forth in Exhibit
B hereto.

2. Development of Developed Products; License Fee; VAR Agreement Superseded.

        2.1 Development Program; Creation of Business Unit and Steering
Committee; Ongoing Obligations.

        (a) Promptly following the execution of this Agreement, MicroStrategy
will create a business unit (the "Business Unit"), which will include an
engineering team, dedicated to the development and maintenance, support,
integration and testing of the Developed Products pursuant to the terms of this
Agreement. The composition of the Business Unit, development overview and the
development objectives are set forth in Exhibit C, which shall be subject to
modification as set forth in the Work Plan. The parties will establish a
steering committee (the "Steering Committee") promptly following the Effective
Date, which committee will be dedicated to setting the direction for development
of the Developed Products and the other development obligations of the Business
Unit as set forth in the Work Plan, including, without limitation, the
establishment of quarterly milestones ("Milestones"). The composition, process-
related responsibilities and operations of the Steering Committee are set forth
in Exhibit D (collectively, with Exhibit C, the "Work Plan"). MicroStrategy will
allow EA complete access to the Business Unit at all times during normal
business hours, and all reasonable efforts shall be made by EA so that such
access does not interfere with the development responsibilities of the Business
Unit and/or the achievement of Milestones. EA will have the option, at its
discretion, to locate up to ten (10) members of its own engineering and
development team at the site established by MicroStrategy for the location of
the Business Unit, and MicroStrategy will provide EA with adequate space to
accommodate the foregoing. The Steering Committee shall develop the
specifications for the Developed Products (the "Specifications"). Upon
termination of the Business Unit duties by EA as provided in this Agreement or
upon termination of this Agreement for any reason, excluding material breach by
EA, MicroStrategy shall promptly deliver to EA the source code to all Developed
Products which have been completed and/or are in process as of the termination
date, product and design specifications, User Documentation, test data, and
other related information reasonably requested by EA (collectively, the
"Deliveries"). From time-to-time as the Developed Products are completed and
tested pursuant to Work Plan and/or upon the request of EA, MicroStrategy shall
make the Deliveries (or that portion thereof requested by EA) to EA.

        (b) MicroStrategy shall maintain and support (by providing research and
development support and bug fixes to EA) the Developed Products and all software
licensed by
                                      4.
<PAGE>

MicroStategy hereunder during the term of this Agreement and any renewal periods
thereof as such software is actually used by the end user. The foregoing support
shall be provided in accordance, in all material respects, with MicroStrategy's
standard technical support procedures. In addition, MicroStrategy will provide
testing and quality engineering support for the Developed Products utilizing its
Quality Engineering and Beta Programs groups, which group will provide the
results of their tests to EA. MicroStrategy will designate a dedicated product
manager for the Developed Products, create demonstrations of the Applications
and develop pre-sales consulting materials for the Applications.

        (c) Subject to the right of either party under Section 10 to terminate
this Agreement, the Business Unit will develop the Developed Products in
accordance with the Specifications in all material respects, and will perform
the tasks and furnish the deliverables described in the Work Plan, as such may
be modified pursuant to the procedures set forth therein. The parties shall meet
on a periodic basis in connection with the establishment of deliverables
pursuant to the Work Plan to identify with specificity and in writing the
Developed Products.

        (d) The parties shall work in good faith to finalize the form of VAR
Agreement within thirty (30) days after the Effective Date.

        2.2 License Fee.

        (a) EA will pay MicroStrategy a license fee (the "License Fee") of sixty
five million dollars ($65,000,000) in cash and EA common stock in the respective
amounts and in accordance with the payment schedule set forth in the Payment and
Registration Rights Agreement by and between the parties dated as of the
Effective Date and attached hereto as Exhibit E (the "Payment and Registration
Rights Agreement"), in consideration of the rights, licenses and obligations of
the parties under this Agreement and the Exhibits hereto.

        (b) Except as set forth in the foregoing paragraphs of this subsection
2.2 or as otherwise expressly provided in this Agreement, each party will bear
its own costs incurred by it to accomplish its responsibilities in the
development effort.

        2.3 Business Unit Changes. The parties' respective project managers
shall participate in project review meetings as mutually agreed. MicroStrategy
may change or substitute members of the Business Unit at its discretion from
time to time. Notwithstanding the foregoing, MicroStrategy shall adhere to the
then-current requirements of the Work Plan regarding the skill levels and other
qualifications of the Business Unit members.

        2.4 Conformance Testing. MicroStrategy will complete development and
delivery of the deliverable items set forth in the Work Plan in accordance with
the Milestones set forth therein. Upon completion of the Milestones, including,
without limitation, final completion of the Developed Products and the
performance of product quality and conformance testing of the G.A. version of
the Developed Products by MicroStrategy based upon testing criteria and
Specifications established by the Steering Committee, EA have the right to
confirm the results of such product quality and performance testing.

        2.5 Demonstration Environment. MicroStrategy agrees to allocate a
portion of the Business Unit toward the development of a demonstration
environment for the Exchange
                                      5.
<PAGE>

Applications  Solution  and the  Developed  Products at EA's site.  In
connection  with the foregoing,  MicroStrategy  shall provide the  MicroStrategy
Software, the Developed products and certain Business Unit personnel as selected
by MicroStrategy (collectively,  the "MicroStrategy Resources"), and EA shall be
responsible for all third party software,  all hardware and all costs related to
the  demonstration   environment,   excluding  those  directly  related  to  the
MicroStrategy  Resources,  or as otherwise specifically provided for in the Work
Plan.

        2.6 Termination of VAR Agreement. The parties acknowledge and agree that
this Agreement supersedes and replaces that DSS Partner Value-Added Reseller
Agreement between the parties dated June 1, 1999, which is hereby terminated
pursuant to Section 15.9 thereof. All licenses to end users granted under the
foregoing agreement will survive such termination, all obligations set forth in
Section 14.6 shall survive, and MicroStrategy's obligations under Section 9.2
thereof for support shall be pursuant to this Agreement in lieu of its support
obligations thereunder.

        2.7 Source Code Escrow. Within ten (10) days after the Effective Date,
the parties shall enter into a Source Code Escrow Addendum in respect of the
MicroStrategy Software in substantially the form provided to MicroStrategy's
other customers (the "Source Code Escrow Addendum").

3. Joint Marketing And Sales; Joint Marketing Agreement. The parties' respective
obligations  regarding  marketing and  promotion of the  Developed  Products and
certain mutually agreed upon details regarding their relationship as embodied in
this Agreement shall be as set forth in a Joint Marketing  Agreement in the form
attached hereto as Exhibit F.

4. Joint Ownership of Developed Products; OEM License Grants to MicroStrategy
Software.

        4.1 Joint Ownership; Restriction on Sale. MicroStrategy and EA shall
jointly own all right, title and interest worldwide in and to the Developed
Products including, without limitation, patents, copyrights, trade secrets and
any other Intellectual Property Rights (including trademarks and trade names
related to the Developed Products, but excluding any trademarks and trade names
owned individually by either party) incorporated in the Developed Products,
whether in the United States or abroad, which ownership rights shall be subject
to the restrictions set forth in Sections 4.7, 4.8 and elsewhere in this
Agreement. EA acknowledges that MicroStrategy has not filed any patent
applications nor obtained any issued patents on the Developed Products as of the
Effective Date. It is the intention of the parties that all the Intellectual
Property Rights (including any related trademarks and trade names, but excluding
those owned individually by either party) in the Developed Products shall be
jointly owned without any duty to account (except in the event of infringement
as provided in Section 4.12 or share any royalties (except as provided in
Section 11.1) based on the licensing or use of the Developed Products by the
other party. Notwithstanding the foregoing and except pursuant to Section 10.3,
during the period of time that the Business Unit obligations are continuing
hereunder and for a period of six (6) months thereafter (the "Lockup Period"),
neither party may sell, assign, transfer or encumber its ownership interest in
the Developed Products (a "Transfer of Ownership") without the other party's
prior written consent, which may be granted or withheld in such party's sole
discretion. After the Lockup Period, either party shall have the

                                      6.
<PAGE>

right to engage in a Transfer of Ownership, provided that such transfer shall
shall be a transfer of the transferring party's joint ownership interest in the
Developed Products only (subject to the restrictions set forth in this
Agreement), and shall not entail a transfer or assignment of any license or
other rights granted by MicroStrategy pursuant to this Agreement or of any
obligations of MicroStrategy hereunder.

        4.2 Enforcement of Intellectual Property Rights. Upon reasonable
request, each party (the "Assisting Party") will assist the other party (the
"Requesting Party") in every proper way to obtain and from time to time enforce,
United States and foreign Intellectual Property Rights related to the Developed
Products in any and all countries. To that end, the Assisting Party will
execute, verify and deliver such documents and perform such other acts
(including appearances as a witness) as the Requesting Party may reasonably
request for use in applying for, obtaining, perfecting, evidencing, sustaining
and enforcing such Intellectual Property Rights and the Requesting Party's joint
ownership interest therein. The Assisting Party's obligation to assist the
Requesting Party with respect to such Intellectual Property Rights relating to
the Developed Products in any and all countries shall continue for a period of
five (5) years after expiration or termination of this Agreement, which expenses
shall be shared by the parties as they may mutually agree. In addition, the
Assisting Party will execute any license agreement which is consistent with the
rights granted and the terms set forth in this Agreement requiring the names of
both co-owners to make the license granted therein enforceable.

        4.3 Execution of Documents. In the event the Requesting Party is unable
for any reason, after reasonable effort (which shall include the issuance of a
final notice pursuant to the notice provisions hereof), to secure the Assisting
Party's signature on any document needed in connection with the actions
specified in Section 4.2 above, the Assisting Party hereby irrevocably
designates and appoints the Requesting Party and its duly authorized officers
and agents as its agent and attorney in fact, which appointment is coupled with
an interest, to act for and in its behalf to execute, verify and file any such
documents and to do all other lawfully permitted acts to further the purposes of
the preceding paragraph with the same legal force and effect as if executed by
the Assisting Party.

        4.4 Copyright Notices on Developed Products. EA and MicroStrategy agree
that all copies of the Developed Products and any Derivative Works, whether or
not modified, made by EA or MicroStrategy, or their respective licensees or
sublicensees, will contain applicable proprietary notices as described in
greater detail in Exhibit G. In addition, EA and MicroStrategy agree to include
an applicable copyright notice, as described in greater detail in Exhibit G, in
or on the media of all copies of the Developed Products or any Derivative Work.

        4.5 Derivative Works. Neither party shall have the obligation to share
or disclose its own respective Derivative Works to the other party.
Notwithstanding the provisions of Section 8, either party may prepare and file a
patent application for its own Derivative Work in any country; provided that
such party (i) notifies the other party, in writing, at least sixty (60) days
prior to submitting such patent application; and (ii) describes the scope of the
proposed patent application and the countries in which it desires to seek patent
protection. The ownership of the patent on the Derivative Work and the
application therefor, excluding any patent or other intellectual property rights
related to the Developed Product underlying the Derivative Work or upon which
such Derivative Work is based, shall be vested in the party which is the
developer of

                                      7.
<PAGE>

such Derivative Work. Notwithstanding any of the foregoing, in no event shall
either party (the "Non-Creating Party") bring an action to enforce any rights to
seek remedies against the other party (the "Creating Party"), its customers or
licensees based upon a claim that the Creating Party's Derivative Works infringe
upon the Non-Creating Party's Intellectual Property Rights. Notwithstanding the
foregoing, nothing stated herein shall allow either party to create Derivative
Works in violation of its obligations with respect to Confidential Information
contained in Section 8 or to create Derivative Works which infringe upon the
other party's intellectual property rights related to the MicroStrategy Software
or the EA Products, as applicable.

        4.6 Trademark License. MicroStrategy hereby grants to EA an
unrestricted, terminable (pursuant to Section 10), non-exclusive, royalty-free,
world-wide license (without the right of sublicense) to use all trademarks and
trade names owned by MicroStrategy and associated with the Developed Products
and the MicroStrategy Software (herein the "Trademarks") in conjunction with any
licensing and/or sublicensing, as applicable, of such products to end users in
accordance with the terms of this Agreement. EA agrees to state in appropriate
places, as designated by MicroStrategy and described in greater detail in
Exhibit H, that the Trademarks are the trademarks of MicroStrategy and to
include the symbols TM and (R) as appropriate. EA agrees to maintain the quality
of the EA Products licensed in connection with the use of the Trademarks, to use
the Trademarks in accordance with guidelines and instructions as may be
reasonably promulgated by MicroStrategy from time to time, and to provide to
MicroStrategy, upon reasonable request, representative samples of product
packaging using the Trademarks. EA agrees to take all actions reasonably
necessary or requested by MicroStrategy to protect MicroStrategy's rights in the
Trademarks.

        4.7 Channel Distribution. Both parties agree to only license the
Developed Products directly to end users. Neither MicroStrategy nor EA will sell
or license the Developed Products to any third party distributor,
subdistributor, multiple tiers of subdistributors, any value-added reseller,
resellers or original equipment manufacturers (a "Channel") without the express
written consent of the other party. In the event that the non-transferring party
consents to the proposed sublicensing or distribution of the Developed Products
by a Channel, the parties will negotiate in good faith the terms of a three-
party agreement providing, among other things as negotiated by the parties, that
MicroStrategy and EA would share in the revenue generated from the sublicensing
and/or distribution by the Channel of the integrated solutions that include
Developed Products, any EA Products and/or MicroStrategy Software bundled
therewith. Notwithstanding the foregoing, nothing stated herein shall prohibit
EA from sublicensing and/or distributing the Developed Products and/or the
MicroStrategy Software (subject to the other restrictions and obligations set
forth in this Agreement) using Axiom Corporation ("Axiom") as a Channel,
provided that Axiom sublicenses and/or distributes the foregoing software
products directly to End Users and not by means of a Channel. In the event of
the foregoing, the parties shall negotiate in good faith and mutually agree in
advance upon a revenue sharing arrangement that compensates MicroStrategy
adequately based upon the amount of MicroStrategy Software embedded or
integrated with each product sublicensed or distributed by Axiom.

        4.8 Additional Usage Restrictions. Both parties acknowledge and agree
that either party may license the object code of the Developed Products and/or
its own respective Derivative Works (in object code format only) to end users in
accordance with its standard licensing practices, provided that such license
includes adequate prohibitions on obtaining Source Code

                                      8.
<PAGE>

through reverse engineering. For the purposes of this Agreement, the term
"Source Code" shall mean the human-readable coded version of the Developed
Products and all related program documentation such that a programmer reasonably
skilled in the relevant programming language could read, understand and modify
the Developed Products. For the avoidance of doubt, the parties acknowledge and
agree that the Developed Products may be used by the parties (but not their
licensees) to provide time sharing, service bureau and/or ASP services.

        4.9 MicroStrategy OEM License Grants to MicroStrategy Software; OEM
License Restrictions.

        (a) Internal Use License. Subject to the fees payable hereunder,
MicroStrategy hereby agrees to grant to EA a royalty-free (except as provided in
Section 10), worldwide, limited (as provided in the License Agreement, as
defined below), non-exclusive and non-transferable license to use the
MicroStrategy Software in accordance with the terms and conditions set forth in
the form of License Agreement attached hereto as Exhibit I and hereby
incorporated by reference into this Agreement (the "License Agreement"). The
foregoing license grant shall be coterminous with this Agreement and the VAR
Agreement. For the avoidance of doubt, EA may use the MicroStrategy Software in
connection with providing time sharing, service bureau and/or ASP services.

        (b) Development License. MicroStrategy hereby grants EA a non-exclusive,
non-transferable license to use the MicroStrategy Software in a non-production
environment for the limited purpose of establishing the compatibility of the
products included in the MicroStrategy Software with the EA Products.

        (c) License to Market, Sublicense and Distribute. MicroStrategy hereby
grants EA a license to copy (in object code form only), market, sublicense and
distribute the MicroStrategy Software and related User Documentation, including
any updates thereto provided to EA pursuant to this Agreement, in conjunction
with an Exchange Applications Solution and/or a Developed Product in the
Territory. All licenses to the MicroStrategy Software granted hereunder shall be
"ramped" or granted on a staggered basis in accordance with the delivery
schedule set forth in Exhibit J. This is not a license to market, sublicense or
distribute the MicroStrategy Software or User Documentation separately or to
copy the MicroStrategy Software for such purposes, and such action shall be a
material breach of this Agreement. EA shall sublicense and distribute the
MicroStrategy Software and User Documentation directly to end users solely
through a written sublicense agreement ("End User License Agreement") that
includes, at a minimum, contractual provisions that:

                (i) Restrict use of the MicroStrategy Software solely to use
with an Exchange Applications Solution and/or a Developed Product. For purposes
of this provision, an "Exchange Applications Solution" is the combination of the
EA Products with the MicroStrategy Software in order to create a "CRM/eCRM
Application." For purposes of this subsection, a CRM/eCRM Application means an
application that contains a substantial customer-centric data model with at
least 100 elements and a reasonable number of packaged analytical reports (i.e.,
10 or more such reports). MicroStrategy acknowledges and agrees that there may
be more than one Exchange Applications Solution.

                                      9.
<PAGE>

                (ii) Restrict use of the MicroStrategy Software to use in object
code form.

                (iii) License the MicroStrategy Software on a named user basis
exclusively for each named end user's internal business purposes.

                (iv) Prohibit transfer or duplication of the MicroStrategy
Software except for temporary transfer in the event of computer malfunction and
duplication as part of routine back-up procedures.

                (v) Prohibit assignment of the MicroStrategy Software without
the prior written consent of EA.

                (vi) Prohibit the use of the MicroStrategy Software by any third
party except agents and consultants of end users who have signed a
confidentiality agreement that requires at least a reasonable standard of care
in the protection of MicroStrategy Confidential Information.

                (vii) Prohibit causing or permitting the reverse engineering,
disassembly or decompilation of the MicroStrategy Software.

                (viii) Prohibit title to the MicroStrategy Software from passing
to end users.

                (ix) Disclaim MicroStrategy's liability for damages, whether
direct or indirect, incidental or consequential, arising in connection with the
End User License Agreement.

                (x) State that MicroStrategy makes no direct warranty of any
kind to end users under the End User License Agreement.

                (xi) Prohibit disclosure to any third party of any results of
any benchmark tests or quantitative analyses of the MicroStrategy Software.

                (xii) Require end users to use a commercially reasonable degree
of care to protect the Confidential Information of MicroStrategy and prohibit
end users from, directly or indirectly, (a) using any Confidential Information
of MicroStrategy to create any computer software program or user documentation
that is substantially similar to any MicroStrategy product or user
documentation, or (b) using or disclosing Confidential Information of
MicroStrategy, except as authorized by this Agreement.

                (xiii) Disclaim MicroStrategy's liability for any taxes or
duties, however designated or levied (including, but not limited to sales, use
and personal property taxes).

        (d) License to Demonstrate. MicroStrategy hereby grants to EA a license
to demonstrate the MicroStrategy Software in conjunction with an Exchange
Applications Solution and/or a Developed Product in the Territory. MicroStrategy
shall provide EA copies of the MicroStrategy Software for demonstration
purposes. EA shall take all reasonable precautions

                                      10.
<PAGE>

against unauthorized disclosure or copying of MicroStrategy Software while the
Exchange Applications Solution is being demonstrated. EA shall take all
reasonable steps to ensure that the MicroStrategy Software is inaccessible
during inactive demonstration times, delete any demonstration copies of the
MicroStrategy Software installed on the potential customer's computers upon
completion of any demonstration at a customer site and further exercise
commercially reasonable efforts to ensure the security of the MicroStrategy
Software.

        (e) License to Grant Evaluation Licenses. MicroStrategy grants to EA a
license to allow Evaluations of the MicroStrategy Software in conjunction with
the EA Products in the Territory, but only pursuant to a written agreement that
contains the restrictions set forth in this Section. MicroStrategy shall provide
EA with copies of the MicroStrategy Software for Evaluations. EA shall take all
reasonable precautions against unauthorized disclosure or copying of
MicroStrategy Software during Evaluations. When an Evaluation ends, if an End
User does not license the Exchange Applications Solutions, EA shall require that
all copies of the Exchange Applications Solutions be promptly removed from such
end user's facilities and returned to EA.

        (f) EA covenants. In connection with the license granted in this Section
4.9, EA covenants and agrees: (i) not to distribute the MicroStrategy Software,
except as part of an Exchange Applications Solution (as defined in Section
4.9(c)(i)); (ii) not to distribute the MicroStrategy Software electronically;
and (iii) not to distribute the MicroStrategy Software through Channels of
distribution, except as permitted under Section 4.7.

        (g) MicroStrategy Software OEM License Restrictions and EA Covenants.
The rights granted in this Section 4.9 are expressly limited to and restricted
by the following:

                (i) No copies may be made of MicroStrategy Software except as
explicitly authorized by this Agreement or the applicable End User License
Agreement. EA shall have no right to manufacture, modify, or copy User
Documentation. Notwithstanding the foregoing, EA shall have the right to make a
reasonable number of copies of the User Documentation for purposes consistent
with this Agreement, provided that such copies are of the same quality as the
originals as provided by MicroStrategy.

                (ii) MicroStrategy reserves the right to amend, modify, enhance,
add to or delete from the list of MicroStrategy Software upon thirty (30) days'
written notice to EA so long as the list includes at all times any software
product then actively marketed by MicroStrategy in the United States, provided,
however, that such modifications to the list of MicroStrategy Software shall not
apply to proposals to end users outstanding on the notice date of such
modifications until the earlier of (i) the proposal expiration date or (ii)
sixty (60) days from the notice date, provided that EA provides a list of such
end users to MicroStrategy within thirty (30) days of the notice date. The list
of end users shall include (i) the name of the end user, (ii) the date of the
proposal, and (iii) the expiration date of the proposal. This Agreement shall
automatically cover all such amendments, modifications, or enhancements to the
list of MicroStrategy Software. MicroStrategy's support obligations for
MicroStrategy Software (for End Users and EA) that is phased out in accordance
with this subsection shall be handled pursuant to MicroStrategy's standard
support policies and procedures then in effect, but in no event, shall EA or its
end users be accorded less favorable treatment than MicroStategy's direct


                                      11.
<PAGE>

customers. Notwithstanding the foregoing, EA shall continue to retain its
license rights under this Section 4.9 for all MicroStrategy Software, including
those products that are phased out or discontinued as provided above
(collectively, the "Discontinued Products"), provided, however, that,
notwithstanding the foregoing, MicroStrategy shall have no warranty, support,
indemnification or other obligations whatsoever with respect to the Discontinued
Products, which shall be licensed on an "AS IS" basis as of the date which is
thirty (30) days after the date of written notice to EA as provided herein. EA
shall be entitled to the source code to a Discontinued Product pursuant to the
terms and restrictions of the Source Code Escrow Addendum at such time, if ever,
that MicroStrategy ceases to provide Technical Support Services (as defined in
the Source Code Escrow Addendum) for that particular Discontinued Product.

                (iii) EA agrees that it will not, either directly or through a
third party, use MicroStrategy Software, the source code, or a derivative
thereof, or any Confidential Information of MicroStrategy, to create, modify or
enhance any computer software programs or user documentation which is
functionally, visually, or otherwise identical or substantially similar to any
MicroStrategy Software.

                (iv) EA agrees that it will not, either directly or through a
third party, reverse engineer, disassemble or decompile any of the MicroStrategy
Software, or make any attempt to obtain or derive the source code from any
MicroStrategy Software, whether or not such product is listed in Exhibit A.

                (v) EA agrees that it will not permit any End Users to rent or
lease MicroStrategy Software or use of MicroStrategy Software (i.e., timeshares
or service bureaus).

                (vi) Regardless of any disclosure by EA to MicroStrategy of an
ultimate destination of MicroStrategy Software, EA shall not transfer or re-
export MicroStrategy Software, any goods created with MicroStrategy Software,
related documentation, or other related proprietary information, to anyone
outside the United States as to which export may be in violation of the United
States export laws or regulations, without first obtaining the appropriate
license from the U.S. Department of Commerce and/or any other agency or
department of the U.S. Government, as required.

        4.10 Reserved Rights. Any rights to or under MicroStrategy's
Intellectual Property Rights or the MicroStrategy Software not expressly granted
in this Agreement are expressly reserved by MicroStrategy. In addition,
MicroStrategy reserves the right to amend the list of provisions that must
appear in the End User License Agreement as set forth in Section 4.9(c)(ii)
through (xiii) upon ninety (90) days' advance, written notice; provided,
however, that such amended provisions shall be commercially reasonable and apply
only to End User License Agreements executed by EA subsequent to the expiration
of the ninety (90) day notice period.

        4.11 Intellectual Property Markings on MicroStrategy Software. EA will
comply with MicroStrategy's instructions regarding the marking of the
MicroStrategy Software and accompanying User Documentation with a notice
reflecting MicroStrategy's ownership of certain Intellectual Property Rights
embodied therein.

                                      12.
<PAGE>

        4.12 Infringement by Third Parties. If either party learns of any
possible infringement or misappropriation of the other party's Intellectual
Property Rights, it shall immediately give notice thereof to the other party.
Each party agrees to cooperate with the other party's reasonable efforts to seek
legal remedies for such infringements and misappropriations. In the event of any
successful claim of infringement (a "Claim") of the Intellectual Property Rights
embodied in the Developed Products against a third party or any settlement
thereof involving a monetary recovery, MicroStrategy and EA agree to share
equally the net proceeds derived from the disposition or settlement of such
Claim after deducting from such proceeds each party's costs in connection
therewith to the extent that such costs are not otherwise directly covered by
the settlement amount or court award.

5. WARRANTY; DISCLAIMER OF WARRANTIES.

        5.1 Warranty. MicroStrategy warrants to EA for a period of ninety (90)
days from the date of delivery of the MicroStrategy Software to EA that each
unmodified MicroStrategy Software product will perform in substantial
conformance with the functions described in the User Documentation. In addition,
MicroStrategy warrants to EA through December 31, 2001 that the unmodified
MicroStrategy Software products will not fail or produce incorrect results when
processing with four (4)- digit dates for the year 2000; provided, however, that
MicroStrategy makes no warranty with respect to any such failure or incorrect
result that may arise due to: (i) the quality of the data sought to be processed
with the MicroStrategy Software; (ii) the effect of other software not licensed
by MicroStrategy to EA or developed by MicroStrategy for EA; or (iii) the use of
the MicroStrategy Software in an operating environment or on a platform not
specified by MicroStrategy. MicroStrategy Software warranty claims must be
brought within the warranty period. For any breach of the warranties contained
herein, EA's exclusive remedy and MicroStrategy's entire liability shall be, at
MicroStrategy's sole discretion, the correction of the MicroStrategy Software
errors that cause breach of the warranty, replacement of the MicroStrategy
Software which is experiencing the error or return of the License Fees allocable
to the non-conforming MicroStrategy Software product (or in the case of a breach
of the warranty contained in the second sentence of this Section 5.1, a pro-
rated portion of such license fees) upon EA's return of such MicroStrategy
Software product to MicroStrategy.

        5.2 MICROSTRATEGY DISCLAIMER. EXCEPT AS PROVIDED HEREIN, THE
MICROSTRATEGY SOFTWARE IS BEING LICENSED "AS IS" WITHOUT WARRANTY OF ANY KIND.
EXCEPT FOR THE RIGHT OF EA TO CONFIRM THE RESULTS OF MICROSTRATEGY'S CONFORMANCE
TESTS PURSUANT TO SECTION 2.4, THE DEVELOPED PRODUCTS ARE BEING FURNISHED "AS
IS" WITHOUT WARRANTY OF ANY KIND. EXCEPT AS EXPRESSLY PROVIDED IN THIS SECTION
5, MICROSTRATEGY MAKES NO WARRANTIES, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE,
AS TO ANY MATTER WHATSOEVER. IN PARTICULAR, ANY AND ALL WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.

        5.3 EA DISCLAIMER. EXCEPT AS PROVIDED IN THIS AGREEMENT, EA MAKES NO
WARRANTIES, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, AS TO THE DEVELOPED
PRODUCTS AND/OR ITS DERIVATIVE WORKS.

                                      13.
<PAGE>

6. Support, Maintenance And Consulting.

        6.1 EA Support Options. EA will have the option of either: (i) providing
level I support to end users ("End Users") ("Level 1 Support") for all EA-
branded offerings of the Developed Products with MicroStrategy providing level 2
support ("Level 2 Support"), or (ii) MicroStrategy providing both Level 1 and
Level 2 Support for such offerings. Level 1 Support will consist of (i) initial
contact with the End User to define a code or documentation problem; (ii)
provision of answers to questions about product functionality to the extent
reasonably possible; and (iii) an attempt to resolve the call. Level 2 Support
will consist of (i) receipt of problem definition and scope and all related data
and materials from first level support personnel of EA; (ii) an attempt to
provide solutions or workarounds for the problem; (iii) formulation of plans for
collection of additional data relating to the problem; (iv) the collection of
additional data relating to the problem, and (v) the provision of bug fixes
and/or patches for problems in conformance with MicroStrategy's standard support
procedures then in effect.

        6.2 Support Royalties. Regardless of which of the options set forth in
Section 6.1 that EA chooses, EA shall pay to MicroStrategy a royalty of eight
percent (8%) of the license fees (assuming a maintenance rate of 16% of the
applicable end user license fees) EA receives for, or that are attributable to,
the MicroStrategy Software component of the product licensed by EA. The
MicroStrategy Software component value shall be calculated based on the lesser
of: (a) thirty percent (30%) of the MicroStrategy list price then in effect for
the MicroStrategy Software which is bundled with, or included in, the Exchange
Applications Solution, or (b) fifty percent (50%) of the actual price for the
Exchange Application Solution. This arrangement will be reciprocal for support
provided by EA (i.e., MicroStrategy will pay EA an 8% royalty) in connection
with MicroStrategy-branded offerings of the Developed Products. In connection
with the foregoing, each party agrees to charge End Users an amount equal to
sixteen percent (16%) of the applicable product license fees for maintenance and
support services. The royalty payment terms in Section 11.1 shall apply to the
payment of all royalties hereunder.

7. Indemnities.

        7.1      Indemnification.

        (a) MicroStrategy shall indemnify, defend and hold EA harmless from and
against any and all liabilities, losses, damages, fees, costs and expenses,
including without limitation reasonable attorneys' fees, incurred by EA
resulting from a third party claim, suit, action or proceeding (a "Claim")
alleging that the MicroStrategy Software, the Developed Products or
MicroStrategy's Derivative Works (collectively, the "Indemnified Products")
infringes or misappropriates a third party U.S. patent, copyright, trade secret
or other intellectual property right; provided that EA (i) promptly notifies
MicroStrategy in writing of such Claim; (ii) provides MicroStrategy sole control
of the defense or settlement of such claim; and (iii) provides MicroStrategy
assistance at MicroStrategy's request and reasonable expense. EA may participate
in the defense or settlement of the Claim at its own expense. If a final
injunction is obtained against EA for use of the MicroStrategy Software or the
Developed Products or licensing of the Developed Products in accordance with the
terms of this Agreement, or if MicroStrategy reasonably believes that such
injunction is likely, MicroStrategy may, at its option and its expense, either
(i) procure for EA the right to continue using and/or licensing the


                                      14.
<PAGE>

MicroStrategy Software or the Developed Products, as applicable, or (ii) modify
the MicroStrategy Software or the Developed Products, as applicable, or the
infringing portions thereof so that they become non-infringing. If in
MicroStrategy's opinion neither of the above is commercially feasible, EA shall
promptly cease licensing the infringing MicroStrategy Software, or the Developed
Products, as applicable, and MicroStrategy shall pay to EA an amount equal to
the License Fee, reasonably attributable to such component as a fraction of all
licenses granted hereunder depreciated on a three-and-one-half (3 1/2) year
straight line basis, calculated backwards from the date of infringing event to
the Effective Date. MicroStrategy will have no liability or obligation to
indemnify for any claim arising from (i) the combination of the Indemnified
Products with EA or third party materials or intellectual property, unless such
infringement would have occurred without such combination; (ii) the modification
or translation of the Indemnified Products or any portion of the MicroStrategy
Technology by EA or any third party not authorized to do so by MicroStrategy
(collectively, "EA Modifications"); (iii) any use by EA of the Indemnified
Products after directed by MicroStrategy to discontinue use thereof; or (iv) any
Improvements to the Indemnified Products created by a party other than, or not
specifically authorized by, MicroStrategy.

        (b) EA shall indemnify, defend and hold MicroStrategy harmless from and
against any and all liabilities, losses, damages, fees, costs and expenses,
including without limitation reasonable attorneys' fees, incurred by
MicroStrategy resulting from the EA Modifications or from a Claim that the
manufacture, use or licensing by EA of the MicroStrategy Software and/or the
Developed Products other than in accordance with the terms of this Agreement or
that EA's Derivative Works infringes any patent, copyright or other proprietary
rights of any third party or misappropriates any trade secret of any third
party; provided that such Claim is not a Claim based on the Indemnified Products
for which MicroStrategy indemnifies EA pursuant to Section 7.1(a); and provided
further that MicroStrategy (i) promptly notifies EA in writing of such Claim;
(ii) provides EA sole control of the defense or settlement of such claim; and
(iii) provides EA reasonable assistance at EA's request and expense.

        (c) Any failure by either party to promptly notify the other of a claim
for which indemnification may be sought or to cooperate in such claim shall only
relieve the other of its indemnity obligations hereunder to the extent that it
is prejudiced by the delay or failure to cooperate.

        7.2 Entire Liability. The foregoing provisions of this Section 7 state
the entire liability and obligations of each party and the exclusive remedy of
each party with respect to any alleged Intellectual Property Rights infringement
or misappropriation by the MicroStrategy Software, the Developed Products, the
Derivative Works or the parties' respective Technology incorporated in the
Developed Products. Neither party shall be liable for claims by the other
party's end users relating to the Developed Products, the EA Products and/or the
Exchange Applications Solution.

8. Confidentiality.

        8.1 Confidentiality. Each party hereto will maintain in confidence all
Confidential Information disclosed by the other party hereto. Neither party will
use, disclose or grant use of such Confidential Information except as expressly
authorized by this Agreement. To the extent

                                      15.
<PAGE>

that disclosure is authorized by this Agreement, the disclosing party will
obtain prior written agreement from its employees, agents or consultants to whom
disclosure is to be made to hold in confidence and not make use of such
information for any purpose other than those permitted by this Agreement, and
each party shall be liable for the unauthorized disclosure of the other party's
Confidential Information by such employees, agents or consultants. Each party
will use at least the same standard of care as it uses to protect its own most
confidential information to ensure that such employees, agents or consultants do
not disclose or make any unauthorized use of such Confidential Information. Each
party will promptly notify the other upon discovery of any unauthorized use or
disclosure of the Confidential Information. In no event shall either party
disclose the other party's confidential information to the disclosing party's
competitors as defined in Exhibit K (the "Competitors") even if such Competitor
is a consultant or contractor of the receiving party.

        8.2 Exceptions. The obligations of confidentiality contained in Section
8.1 will not apply to the extent that such Confidential Information:

        (a) was already known to the receiving party, other than under an
obligation of confidentiality to the disclosing party, at the time of disclosure
by the other party;

        (b) was generally available to the public or otherwise part of the
public domain at the time of its disclosure to the other party;

        (c) became generally available to the public or otherwise part of the
public domain after its disclosure and other than through any act or omission of
the receiving party in breach of this Agreement;

        (d) was disclosed to the receiving party, by a third party who had no
obligation to the disclosing party not to disclose such information to others;

        (e) is independently developed by the receiving party without reference
to the Confidential Information;

        (f) was the subject of a court- or government-ordered disclosure,
provided that the disclosing party gives reasonable prior notice to the non-
disclosing party and limits the scope and the instances of the disclosure to
that required by the relevant order and cooperates and assists the disclosing
party in obtaining a protective order relating to such disclosure, if
applicable.

9. Limitation Of Liability.  EXCLUDING EACH PARTY'S INDEMNIFICATION  OBLIGATIONS
FOR  DAMAGES  PAYABLE  TO  A  THIRD  PARTY  FOR   INFRINGEMENT  OF  THIRD  PARTY
INTELLECTUAL PROPERTY RIGHTS AND BREACHES OF THE CONFIDENTIALITY OBLIGATIONS SET
FORTH IN SECTION 8,  NEITHER  PARTY SHALL BE LIABLE TO THE OTHER PARTY OR TO ANY
ENTITY CLAIMING  THROUGH OR UNDER THE OTHER PARTY FOR ANY LOSS OF USE, PROFIT OR
INCOME,  ANY LOST DATA, ANY WORK STOPPAGE,  ANY EQUIPMENT  DOWNTIME,  OR FOR ANY
CONSEQUENTIAL, INCIDENTAL, INDIRECT, PUNITIVE, OR SPECIAL DAMAGES, WHETHER IN AN
ACTION FOR  CONTRACT OR TORT OR BASED ON A  WARRANTY,  IN  CONNECTION  WITH THIS
AGREEMENT,  EVEN IF SUCH  PARTY  HAS

                                      16.
<PAGE>

BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDING EACH PARTY'S
INDEMNIFICATION OBLIGATIONS FOR DAMAGES PAYABLE TO A THIRD PARTY FOR
INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS AND BREACHES OF THE
CONFIDENTIALITY OBLIGATIONS SET FORTH IN SECTION 8, IN NO EVENT SHALL EITHER
PARTY'S LIABILITY TO THE OTHER HEREUNDER EXCEED THE LICENSE FEES PAID TO
MICROSTRATEGY PURSUANT TO THIS AGREEMENT. The foregoing limitations are
independent from all other terms and provisions of this Agreement and shall
apply notwithstanding the failure of any remedy provided herein.

10. Term; Termination Based Upon Certain Occurrences.

        10.1 Term; Effect of Termination by EA. This Agreement shall commence
upon the Effective Date and shall continue for an initial term of three-and-one-
half (3 1/2) years. Notwithstanding the foregoing, EA may terminate the
obligations of the Business Unit set forth in Section 2.1 and Exhibit C at any
time during the initial term upon (i) 30 days' prior notice if such notice
occurs prior to June 30, 2000, or (ii) 60 days' prior notice if such notice
occurs at any time thereafter. If EA elects to terminate the Business Unit
obligations as provided above, EA will be relieved of any payment not yet due
and payable to MicroStrategy pursuant to the Payment and Registration Rights
Agreement. If EA elects to terminate the Business Unit obligations during the
first four (4) quarters of this Agreement, then MicroStrategy shall have the
right to immediately terminate the Strategy.com Master Affiliation Agreement
described in greater detail in Section 13 hereof and to immediately cease all
development, engineering and related work hereunder, provided that MicroStrategy
shall make the Deliveries as specified in this Agreement. In addition, if EA
elects to terminate the Business Unit obligations, then this Agreement shall
terminate and be superseded by the VAR Agreement, and the Credit as defined and
described in Section 10.3 shall apply. If EA terminates this Agreement based
upon a material breach by MicroStrategy pursuant to Section 11.4, then this
Agreement shall be superseded and converted into the VAR Agreement. In addition,
in the event that this Agreement is converted into a VAR Agreement as described
in the preceding sentence, then the Credit defined and described in Section 10.3
shall apply.

        10.2 Renewal Options. EA shall have the right to extend the OEM license
rights contained in Section 4.9 of this Agreement for an additional three (3)
year term for a fee of $30,000,000, provided that EA has not exercised its
termination rights pursuant to Section 10.1 prior to the expiration of the
initial term. In addition, EA shall have the right to extend the Business Unit
commitment set forth in Section 2.1(a) for an additional three (3) year term for
a fee of $30,000,000, provided that EA has not exercised its termination rights
pursuant to Section 10.1 prior to the expiration of the initial term.
Alternatively, the parties agree that EA may extend the term of the OEM license
rights hereunder pursuant to the VAR Agreement for additional one (1) year terms
in consideration of the payment of incremental per unit royalties for the
MicroStrategy Software (as bundled with the EA Products) equal to the thirty
percent (30%) of the then-current list prices for such software. The renewal
option described in the immediately preceding sentence shall not be exercisable
by EA in the event that MicroStrategy terminates this Agreement pursuant to
Section 11.4 based upon a material breach by EA.

                                      17.
<PAGE>

        10.3 Termination Based Upon the Occurrence of a Qualified Event. In the
event of a Qualified Event, the party which is not the subject of such event may
terminate this Agreement, provided that such termination occurs within ninety
(90) days after the closing date of the Qualified Event. Upon any such
termination, this Agreement shall be superseded by the VAR Agreement, including,
without limitation, a provision for a credit toward future royalties payable to
MicroStrategy in an amount equal to $30 million less 30% of the list price for
all MicroStrategy Software licensed by EA prior to the date of
termination/conversion (the "Credit"). In the event of the foregoing, the
royalty for the MicroStrategy Software payable to MicroStrategy will be 30% of
the then-current list prices for such products until the credit is exhausted
and, thereafter, shall be 35% of the then-current list prices for such products.

11. Royalties; Taxes; Audit; Termination for Breach; Additional Effects of
Termination.

        11.1 Maintenance Royalty Payment Terms. All royalties accruing in a
particular calendar quarter shall be paid within thirty (30) days after the end
of each such calendar quarter and shall be accompanied by a report detailing the
number of Exchange Applications Solutions licensed (or the nature of support
provided, if applicable pursuant to Section 6.2) during the quarter to which the
royalty payment set forth above applies, the rates at which royalties were
computed, the amount of royalties due, and all additional details reasonably
necessary to show how these amounts were determined.

        11.2 Taxes. The license fees specified in this Agreement are exclusive
of any sales, use, excise, or similar taxes, and of any export and import
duties, which may be levied upon or collectible by either party as a result of
the licensing or shipment of products to end users, any services performed under
this Agreement and use of products by end users. Each party agrees to pay and
otherwise be fully responsible for, and indemnify and hold the other harmless
from and against any and all such taxes and duties, unless in lieu thereof the
party responsible for collecting such taxes provides to the other an exemption
certificate acceptable to the relevant governmental authorities. Notwithstanding
the foregoing, each party, to the extent permitted by applicable law, shall have
the right to claim any and all costs expended pursuant to this Agreement for
qualified research and development per Internal Revenue Code Section 41,
research tax credit.

        11.3 Audit.

        (a) Records. EA shall keep complete and accurate records pertaining to
the licensing of the Exchange Applications Solutions. Such records will be
maintained for a five (5) year period following the year in which any license
fee and/or maintenance fee payments are made by customers pertaining to the
licensing of Exchange Applications Solutions or the provision of services
related thereto.

        (b) Audit Request. MicroStrategy will have the right to engage, at its
own expense, an independent auditor reasonably acceptable to EA, to examine EA's
records not more than twice per calendar year to determine, with respect to any
calendar year, the correctness of any report or payment made under this
Agreement. If any such audit reveals an underpayment of more than five percent
(5%) of the correct amount of royalties due hereunder, such audit will be

                                      18.
<PAGE>

at the expense of EA. If any audit shall show that EA underpaid any royalties
due to MicroStrategy as to the period subject to the audit, then EA shall
immediately pay to MicroStrategy any such deficiency with interest thereon at a
rate equal to the lower of one and a half percent per month or the highest rate
allowed by law from the date due until paid.

        11.4 Termination for Breach. If either party materially defaults in the
performance of its obligations hereunder or under the other Operative
Agreements, the defaulting party agrees to use its commercially reasonable
efforts to correct the default within thirty (30) days after written notice of
default from the non-defaulting party. If any such default is not corrected
within the cure period, then the non-defaulting party at its option may, in
addition to any other remedies it may have, terminate this Agreement at the end
of such cure period.

        11.5 Additional Effects of Termination.

        (a) Return of Documentation and Confidential Information. Upon any
termination of this Agreement, each party shall immediately return to the other
party all documentation, Confidential Information and any other tangible items
in its possession or under its control evidencing the know-how of the other
party, except as provided in the VAR Agreement and except with respect to
Confidential Information related to the Developed Products.

        (b) License Termination, MicroStrategy Deliveries. Except as set forth
in this Agreement, upon any termination of this Agreement, all licenses granted
by either party under this Agreement shall be terminated. In the event of a
termination of this Agreement for any reason, excluding termination based on a
material breach by EA in the form of a failure to make payment as required by
the Payment and Registration Rights Agreement, MicroStrategy shall promptly make
the Deliveries (as defined in Section 2.1(a)).

        (c) Inventory. Upon termination of this Agreement resulting from a
breach by EA, EA shall cease all marketing efforts for the Product and shall
return any and all copies of the Product to MicroStrategy. In the case of the
foregoing, MicroStrategy shall have no ongoing obligations with respect to
delivery of the Product to end user customers. Upon termination of this
Agreement resulting from a breach by MicroStrategy, MicroStrategy shall be
obligated to fulfill all orders for the delivery of Products which were licensed
to end user customers prior to the termination date of this Agreement.

        (d) Ongoing Support. Upon termination of this Agreement, MicroStrategy
and/or EA shall be entitled to provide reasonable support to customers as set
forth in this Agreement; provided, however, that such support shall not include
any updates or upgrades to the Product other than minor error corrections or
repairs.

        (e) Survival. Except as otherwise set forth in the applicable section,
the following sections shall survive a termination or expiration of this
Agreement : 4 (other than 4.9), 5, 7, 8, 9, 10, 11, 12 and 14.

12.  Equitable  Relief.  Neither  party shall be precluded  hereby from securing
equitable remedies in courts of any jurisdiction, including, but not limited to,
temporary  restraining orders

                                      19.
<PAGE>

and preliminary injunctions to protect its rights and interests but such relief
shall not be sought as a means to avoid or stay mediation or arbitration.

13. Strategy.com Master Affiliation. On the Effective Date and upon the
execution by EA of a Strategy.com Master Affiliation Agreement in the form set
forth in Exhibit L, MicroStrategy shall grant EA "Master Affiliate" status for
Strategy.com as provided in such agreement.

14. General Provisions.

        14.1 Assignment. Neither party may assign this Agreement or any right
under this Agreement (except as provided in Section 10.3 or Section 4.1), nor
delegate any obligation under this Agreement, without the other party's prior
written consent. The rights and obligations of the parties under this Agreement
shall be binding upon and inure to the benefit of the successors and permitted
assigns of the parties. Any attempted assignment or delegation in contravention
of this Section 14.1 shall be null and void.

        14.2 Force Majeure. Neither party shall be liable to the other party,
under this Agreement or otherwise, for any delay or lack of performance (other
than non-payment) resulting from an event of Force Majeure (as defined below).
If a Force Majeure event occurs, the party prevented from performing its
obligations under this Agreement shall inform the other party as soon as
possible and the time period for performance shall be extended by a period
equivalent to the delay caused by the Force Majeure event plus any additional
period reasonably necessary to allow the prevented party to resume performance
of its obligations. The prevented party shall inform the other party as soon as
possible after the Force Majeure event ends. If the Force Majeure event lasts
for more than one hundred and twenty (120) consecutive days after the initial
notice of such event, the parties shall attempt in good faith to solve the
problem of further performance of this Agreement through friendly consultation.
If the parties cannot solve the problem of further performance within an
additional sixty (60) days, either party may terminate this Agreement without
penalty. As used above, an event of "Force Majeure" means any act of God, war,
fire, typhoon, flood, earthquake, natural disasters, governmental action, labor
disruptions, materials shortages, or any other event beyond the reasonable
control of the prevented party.

        14.3 Notices. All notices and other communications provided for
hereunder shall be in writing and shall be mailed by first-class, registered or
certified mail, postage paid, or delivered personally, by overnight delivery
service or by facsimile, with confirmation of receipt, addressed as follows:

If to MicroStrategy:                                MicroStrategy Incorporated
                                                    8000 Towers Crescent Drive
                                                    Vienna, VA  22182
                                                    Attn: Adam Ruttenberg, Esq.

                                                    Fax No.: (703)848-8748

With a copy to:                                     David M. Janet, Esq.
                                                    Cooley Godward LLP
                                                    2002 Edmund Halley Drive

                                      20.
<PAGE>

                                                    Suite 300
                                                    Reston, VA  20191-3436

                                                    Fax No.: (703)262-8100

If to EA:                                           Exchange Applications
                                                    One Lincoln Plaza
                                                    89 South Street
                                                    Boston, MA  02111
                                                    Attn:  Andrew Frawley,
                                                           President and
                                                    Wayne Townsend, Vice
                                                           President

                                                    Fax No.: (617)790-2849

With a copy to:                                     Neil Townsend, Esq.
                                                    Bingham, Dana LLP
                                                    150 Federal Street
                                                    Boston, MA  02110

                                                    Fax No. (617) 951-8736

Either party may, by like notice,  specify or change an address to which notices
and communications  shall thereafter be sent. Notices sent by facsimile shall be
effective  upon  confirmation  of  receipt,  notices  sent by mail or  overnight
delivery  service  shall be effective  upon receipt or upon refusal of delivery,
and notices given  personally shall be effective when delivered or when delivery
is refused.

        14.4 Governing Law and Venue. All matters arising in connection with
this Agreement or the enforcement or construction thereof shall be governed by
and resolved in accordance with the laws of State of New York, without regard to
conflict-of-laws provisions. Service of process in any suit, action or
proceeding may be made in any manner permitted by law.

        14.5 Construction. The headings of sections and subsections of this
Agreement are for convenience only and shall not be construed to affect the
meaning of any provision of this Agreement. Any inconsistency between provisions
in this Agreement and the exhibits shall be resolved in favor of the main body
of this Agreement.

        14.6 Relationship of the Parties. Except as expressly provided herein,
neither party is, nor will be deemed to be, an agent or legal representative of
the other party for any purpose. Neither party will be entitled to enter into
any contracts in the name of or on behalf of the other party, and neither party
will be entitled to pledge the credit of the other party in any way or hold
itself out as having authority to do so. Neither party will incur any debts or
make any commitments for the other, except to the extent, if at all,
specifically provided herein.

        14.7 Waiver. No provision of the Agreement, unless such provision
otherwise provides, will be waived by any act, omission or knowledge of a party
or its agents or employees

                                      21.
<PAGE>

except by an instrument in writing expressly waiving such provision and signed
by a duly authorized officer of the waiving party.

        14.8 Severability. Whenever possible, each provision of the Agreement
will be interpreted in such manner as to be effective and valid under applicable
law, but if any provision of the Agreement is held to be prohibited by or
invalid under applicable law, such provision will be ineffective only to the
extent of such prohibition or invalidity, without invalidating the remainder of
the Agreement.

        14.9 Entire Agreement; Modifications. This Agreement, together with the
Exhibits attached hereto and the Operative Agreements, constitutes the entire
agreement between the parties and supersedes all prior oral or written
negotiations and agreements between the parties with respect to the subject
matter hereof. Any and all representations and warranties set forth in the
Exhibits and/or Schedules hereto shall be incorporated herein by reference and
be deemed a material part of this Agreement. No modification, variation or
amendment of this Agreement shall be effective unless made in writing and signed
by the parties. Any additional or different terms stated in any purchase order
or other document delivered to EA by MicroStrategy in connection with this
Agreement shall have no effect.

         IN  WITNESS  WHEREOF,  EA  and  MicroStrategy  have  each  caused  this
Agreement to be executed by their duly authorized representatives.

MICROSTRATEGY INCORPORATED                  EXCHANGE APPLICATIONS, INC.

By:      /s/ Sanju Bansal                   By:               [illegible]
   -----------------------------------         ---------------------------

Name:    Sanju Bansal                       Name:
     ---------------------------------      ------------------------------

Title:   COO                                Title:
      --------------------------------      ------------------------------
<PAGE>

                                   Exhibit A
                             MicroStrategy Software

SOFTWARE DESCRIPTION

MicroStrategy's Current Product Offerings

Client/Workstation Based Software (Windows 3.11, Windows NT, Windows 95)

<TABLE>
<CAPTION>
     Software Product                                    Description
--------------------------------------------------------------------------------------------------
<S>                         <C>

MicroStrategy Agent         End-user OLAP tool which gives knowledge workers access to data for
                            analysis, presentation, integration, and action.
--------------------------------------------------------------------------------------------------

MicroStrategy Objects       Relational OLAP OLE API for custom application development.
--------------------------------------------------------------------------------------------------

MicroStrategy Architect     Administration tool used to automatically populate and modify
                            metadata, create dimensions, attributes, hierarchies, facts, metrics,
                            as well as connections to the data warehouse.
--------------------------------------------------------------------------------------------------

MicroStrategy Executive     Application design tool for building Executive Information Systems
                            (EIS) on top of a multidimensional object library.  Provides
                            developers with a tool to define key components of and EIS (screens,
                            buttons, analyses, images, and navigation paths).
--------------------------------------------------------------------------------------------------

MicroStrategy Broadcaster   Broadcaster interface capable of delivering personalized messages to
 (Requires MicroStrategy    many thousands of recipients via E-mail, Fax, Pager and Mobile Phone.
 Broadcaster Server)        Using exception conditions and recurring schedules as triggers.
                            MicroStrategy Broadcaster helps maximize the value of data warehouses
                            by delivering critical information to end-users as part of the normal
                            business process.
--------------------------------------------------------------------------------------------------

MicroStrategy Web           Identical features set to that of MicroStrategy Web Professional
 Standard Edition (SE);     Edition (PE) with three exceptions:
 Requires MicroStrategy     o  Drill Down only
 Web Server                 o  No Surfing
                            o  No Report Creation
                            o  No Report Save


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

MicroStrategy Web           Allows users to connect to the data warehouse via an intranet or the
 Professional Edition       internet and use HTML hyperlinks and Java applets to perform dynamic
 (PE): Requires             OLAP queries in real time.  MicroStrategy Web works with any WWW
 MicroStrategy Web Server   browser and supports adhoc reporting, drill down, drill across, drill
                            within, drill up, multidimensional reports, reports with ranking,
                            advanced comparisons, and metric qualifications.
--------------------------------------------------------------------------------------------------
</TABLE>

DOCUMENTATION

Documentation consists of the user guides and manuals for use that Licensor
normally distributes with the Software.

                   MicroStrategy Confidential And Proprietary
       Unauthorized use, disclosure or duplication is strictly prohibited.

<PAGE>

<TABLE>
<S>                         <C>
--------------------------------------------------------------------------------------------------

MicroStrategy               Monitoring, management, and tuning toolset for decision support
 Administrator              projects built using the MicroStrategy ROLAP architecture, initial
                            fee includes license for two named users.
--------------------------------------------------------------------------------------------------

MicroStrategy Web Server    Allows users to connect to the data warehouse via an intranet or the
 (Requires MicroStrategy    internet and use HTML hyperlinks and Java applets to perform dynamic
 Server)                    OLAP queries in real time.  MicroStrategy Web works with any WWW
                            browser and supports adhoc reporting, drill down, multidimensional
                            reports, reports with ranking, advanced comparisons, and metric
                            qualifications.
--------------------------------------------------------------------------------------------------

MicroStrategy Broadcaster   Information broadcast server capable of delivering personalized
 Server (Requires           messages to many thousands of recipients via E-mail, Fax, Pager and
 MicroStrategy Server and   Mobile Phone.
 Microsoft SQL Server,
 which is not provided)
--------------------------------------------------------------------------------------------------

Telecast Server (Requires
 third party hardware and
 software, not provided)
--------------------------------------------------------------------------------------------------

MicroStrategy Info Center   Information subscription server capable of allowing individuals to
 Server (Requires           subscribe for content from MicroStrategy Web and MicroStrategy
 MicroStrategy              Broadcaster Products.
 Intelligence Server,
 MicroStrategy
 Broadcaster Server and
 Microsoft SQL Server,
 which is not provided)
--------------------------------------------------------------------------------------------------

MicroStrategy               The middle tier in MicroStrategy's three tier architecture.
 Intelligence Server        MicroStrategy Intelligence Server is an OLAP server that enables
                            complex, analytically-intensive requests to be issued against the
                            data warehouse.  It supports asynchronous query processing,
                            permitting execution of both interactive and scheduled batch analysis.
--------------------------------------------------------------------------------------------------
</TABLE>


DOCUMENTATION

Documentation consists of the user guides and manuals for use that Licensor
normally distributes with the Software.

                   MicroStrategy Confidential And Proprietary
       Unauthorized use, disclosure or duplication is strictly prohibited.
<PAGE>

                                   EXHIBIT B
                                   ---------



                                                                          Page 1
<PAGE>

                                   DSSPARTNER
                           MICROSTRATEGY INCORPORATED
                         VALUE-ADDED RESELLER AGREEMENT

This Value-Added Reseller Agreement (the "Agreement") is entered into as of this
first day of June 1999 (the "EffectiveDate"), by and between MicroStrategy
Incorporated ("MicroStrategy"), a Delaware corporation, having its principal
place of business at 8000 Towers Crescent Drive, Vienna, Virginia 22182, and
Exchange Applications, Inc. ("VAR"), a Delaware corporation, having its
principal place of business at One Lincoln Plaza, 89 South Street, Boston,
Massachusetts 02111.

1.   DEFINITIONS

1.1  "Affiliate" means any firm, individual, corporation or other business
entity that directly, indirectly or through one or more intermediaries Controls
or is Controlled by VAR or End User, as appropriate, but only as long as such
Control exists.  For purposes of this definition, "Control" shall mean ownership
of more than fifty (50) percent of voting securities, or otherwise having the
power to cause the direction of the management and policies of the controlled
entity.

1.2  "Benchmark Test" means any quantitative analysis of the Products.
      --------------

1.3  "Collateral" means any marketing, trade press, product sales, education,
      ----------
consulting and support material publicly used by MicroStrategy in the United
States.

1.4  "Confidential Information" means any information disclosed by one party to
      ------------------------
the other party marked `confidential" or disclosed under circumstances that
would lead a reasonable person to conclude that the information was
confidential.  Notwithstanding the foregoing, regardless of whether they are
marked "confidential" and regardless of the circumstances under which they are
disclosed, the following shall be considered the Confidential Information of the
disclosing party: software products, user documentation, inventions, technical
specifications, technical know-how, product development plans, program
flowcharts, file layouts, educational materials (other than Collateral), pricing
and marketing plans.

1.5  "Development Package" means the MicroStrategy products specified in Exhibit
      -------------------
A for use by the number of Named Users set forth therein in accordance with the
terms of this Agreement.

1.6  "End User" means any customer of VAR that purchases or may purchase the
      --------
Software Package for use in accordance with the End User License Agreement.

1.7  "Evaluation" means an installation of the VALEX Response Analyzer product
      ----------
along with the Software Package for a period of time during which an End User
may evaluate the VALEX Response Analyzer product and Software Package together
for its internal use. VAR shall exercise best efforts to restrict Evaluation
periods to thirty (30) days.  In no event, however, shall an Evaluation period
exceed sixty (60) days.

1.8  "Named User" means an individual to whom the End User has assigned an
      ----------
identification number for purposes of tracking use of a Product included in the
Software Package.  If and when a Named User no longer has access to the Product,
the End User may allow an alternate Named User to assume the initial Named
User's identification number and use the Product in place of the initial Named
User.  Typically, the Named User will be an employee of the End User.

1.9  "Products" means the software included in the Software Package.
      --------

1.10 "Software Package" means the English-language version of the following
       ----------------
software for use by the specified number of Named Users: DSS Server for 10 Named
Users, DSS Web PE (with the drill up, drill across, drill within, report wizard,
and saving features disabled) for 10 Named Users, and DSS Architect for one
Named User.

1.11 "Territory" means the world.
      ---------

1.12 "User Documentation" means the MicroStrategy user manual(s) and other
      ------------------
written materials on proper installation and use of the Products that are
normally distributed with the Products.



2.   LICENSES

2.1  Rights Granted

A.  Development License.  Subject to the fees payable hereunder, MicroStrategy
hereby grants VAR a non-exclusive, non-transferable license to use the
Development Package in a non-production environment for the limited purpose of
establishing the compatibility of the Products included in the Development
Package with VAR's VALEX Response Analyzer product.

B.  License to Market, Sublicense and Distribute.  Subject to the fees payable
hereunder, MicroStrategy hereby grants VAR a license to market, sublicense and
distribute the Software Package and related User Documentation, including any
updates thereto provided to VAR as part of technical support services, in
conjunction with its VALEX Response Analyzer product in the Territory.  One
Software Package (but no more than one) shall be sublicensed by VAR with each
copy of the VALEX Response Analyzer product licensed by VAR.  This is not a
license to market, sublicense or distribute the Software Package or User
Documentation separately, and such action shall be a material breach of this
agreement. VAR shall sublicense and distribute the Software Package and User



                                                                          Page 2
<PAGE>

Documentation solely through a written sublicense agreement ("End user License
Agreement") that includes, at a minimum, contractual provisions that:

     (i) Restrict use of the Products to use for response  attribution  analysis
in the  Response  Analyzer  module with the VALEX  response-attribution  related
data.

     (ii) Restrict use of the Products to use in object code form.

     (iii) License the Products on a Named User basis exclusively for End User's
internal business purposes.

     (iv) Prohibit  transfer or duplication of the Products except for temporary
transfer in the event of computer malfunction and duplication as part of routine
back-up procedures.

     (v) Prohibit  assignment of the Products without prior,  written consent of
VAR.

     (vi)  Prohibit the sue of the Products by any third party except agents and
consultants  of End User  who  have  signed  a  confidentiality  agreement  that
requires  at  least  a  reasonable   standard  of  care  in  the  protection  of
MicroStrategy Confidential Information.

     (vii) Prohibit causing or permitting the reverse  engineering,  disassembly
or decompilation of the Products.

     (viii) Prohibit title to the Products from passing to the End User.

     (ix)  Disclaim  MicroStrategy's  liability for damages,  whether  direct or
indirect,  incidental or consequential,  arising in connection with the End User
License Agreement.

     (x) State that  MicroStrategy  makes no direct  warranty of any kind to End
User under the End User License Agreement.

     (xi) Prohibit disclosure to any third party of any results of any Benchmark
Tests of the Products.

     (xii) Require End User to use a commercially  reasonable  degree of care to
protect the  Confidential  Information of  MicroStrategy  and prohibit End Users
from,  directly  or  indirectly,  (a)  using  any  Confidential  Information  of
MicroStrategy to create any computer software program or user documentation that
is substantially similar to any MicroStrategy product or user documentation,  or
(b) using or disclosing  Confidential  Information of  MicroStrategy,  except as
authorized by this Agreement.

     (xiii) Disclaim MicroStrategy's  liability for any taxes or duties, however
designated or levied  (including,  but not limited to,  sales,  use and personal
property taxes).

C.  License to Demonstrate. MicroStrategy hereby grants to VAR a license to
demonstrate the Products in conjunction with the VALEX Response Analyzer Product
(the "Value-Added Solution") in the Territory.  MicroStrategy shall provide VAR
copies of the Products for demonstration purposes as provided in Exhibit C.  VAR
shall take all reasonable precautions against unauthorized disclosure or copying
of Products while the Value-Added Solution is being demonstrated.  VAR shall
take all reasonable steps to ensure that the Products are inaccessible during
inactive demonstration times, delete any demonstration copies of the Products
installed on the potential customer's computers upon completion of any
demonstration at a customer site and further exercise commercially reasonable
efforts to ensure the security of the Products.

D.  License to Grant Evaluation Licenses.  MicroStrategy grants to VAR a license
to allow Evaluations of the Products in conjunction with the VALEX Response
Analyzer Product in the Territory, but only pursuant to a written agreement that
contains the restrictions set forth in Section 2.1. MicroStrategy shall provide
VAR with copies of the Products for Evaluations provided in Exhibit C.  VAR
shall take al reasonable precautions against unauthorized disclosure or copying
of Products during Evaluations.  When an Evaluation ends, if an End User does
not license the VALEX Response Analyzer Product and the Software Package, VAR
shall require that all copies of the Products be promptly removed from End
User's facilities and returned to VAR.

2.2  Restrictions

A.  Copying of Products and User Documentation.  VAR shall not make any copies
of the Products except as explicitly authorized by the Agreement.  VAR shall
have no right to manufacture, modify or copy User Documentation unless
explicitly set forth herein.

B.  Reverse Engineering.  VAR shall not, either directly or through a third
party, reverse engineer, disassemble, or decompile any of the Products.

C.  Unauthorized Use.  VAR shall not rent the Products, provide third parties
with access to the Products through a service bureau or commercial time-sharing
arrangement or use the Products for outsourcing.  VAR shall not use the Products
for third-party training, except as may be authorized herein.

3.  RESERVATION OF RIGHTS

3.1  Right to Amend End User License Agreement Requirements. MicroStrategy
reserves the right to amend the list of provisions that must appear in the End
User License Agreement as set forth in Section 2.1 upon ninety (90) days'
advance, written notice; provided, however that such amended provisions shall
apply only to End User license Agreements executed by VAR subsequent to the
expiration of the ninety (90)-day notice period.

3.2  Other Rights. MicroStrategy reserves all rights not expressly granted in
this Agreement.  Use of the terms "resell," "purchase" and "price" shall not
connote transfer of title or ownership.

4.  PAYMENT AND PRICING

                                                                          Page 3
<PAGE>

4.1  Volume Commitment and Fees.   VAR hereby commits to purchase thirty (30)
Software Packages for a fee of $212,868.  The parties acknowledge that VAR has
paid and MicroStrategy has received $150,000 of such fee.  VAR shall wire the
balance of $62,868 to MicroStrategy by July 30, 1999.  Additional copies of the
Software Package are available to VAR for sublicensing under this Agreement for
a fee of $5,575 each.  When purchasing additional Software Package licenses, VAR
may substitute other-than-English-language versions of a Product or double-byte
versions of a Product, if available, for the English-language-version of Product
included in the Software Package for a fee equal to $1,673.

4.2  Payment Terms.

A.   Payment in United States Dollars.  All payments by VAR under this Agreement
shall be made to MicroStrategy in United States dollars and shall be drawn on a
United States bank.  No payment is refundable, except as may be provided herein.

B.  Payment Due Date.  Except as set forth in Section 4.1, payment is due within
thirty (30) days of receipt by VAR of the MicroStrategy invoice, which invoice
shall be sent concurrently with Product shipment.

C.  Taxes. MicroStrategy's license fees do not include any national , state or
local sales, use, value-added or other taxes, customs duties or similar tariffs
and fees that MicroStrategy may be required to pay upon delivery of the Products
or upon collection of the license fees or otherwise.  Should any tax, levy or
other fees be assessed, VAR agrees to pay such tax or levy and indemnify
MicroStrategy for any claim for such tax or levy demanded.  VAR shall provide
MicroStrategy with copies of all VAR certificates.


5.   ORDER FULFILLMENT AND DELIVERY

5.0  Delivery of Products.  Immediately after execution of this Agreement,
MicroStrategy shall deliver to VAR the current versions of the Products in
respect of  (a) the Development Package, (b) the demonstration license set forth
in Section 2.1(C), (c) the evaluation licenses set forth in Section 2.1 (D) and
(d) the initial thirty (30) Software Packages.

5.1  Placement of Orders.  VAR shall submit orders to the attention of the
Contracts Analyst at the address provided in the MicroStrategy signature block.

5.2  MicroStrategy Acceptance.  All orders for Products by VAR shall be
considered accepted unless MicroStrategy notifies VAR in writing of the
reason(s) for non-acceptance of such order within five (5) business days of
receipt of the order; provided, however, that MicroStrategy's acceptance shall
not be unreasonably with held.  MicroStrategy shall deliver the then-current
version of the Products as specified in VAR's order (in the quantity, to the
ship-to address and by the delivery date, all as specified in such order).

5.3  Controlling Terms.  The provisions of VAR's purchase order or other
ordering document, except those provisions relating to such matters as quantity
of Products being ordered, ship-to address and delivery date, shall not apply to
any order, regardless of whether MicroStrategy accepts the purchase order,
unless VAR's purchase order is signed by both VAR and MicroStrategy.

5.4  Cancellation.  MicroStrategy reserves the right to cancel any orders placed
by VAR and accepted by MicroStrategy as set forth above, or to refuse or delay
shipment thereof, if VAR fails to make any payment as provided in this Agreement
or under the invoice payment terms or as otherwise agreed to in writing by the
parties; provided, however, that MicroStrategy shall not cancel orders or refuse
or delay shipment thereof for failure to pay unless MicroStrategy has first
provided VAR with written notice of its failure to pay and allowed VAR a cure
period of thirty (30) days.

5.5  Collateral. MicroStrategy shall provide reasonable quantities of Collateral
to VAR at no cost except shipping charges.


6.   OBLIGATIONS AND COVENANTS

6.1  VAR's Obligations

A.  Promotion Efforts. VAR shall promote and coordinate the distribution of the
Products in conjunction with the VALEX Response Analyzer product in the
Territory.  Such promotion shall include, within six (6) months of the execution
of this Agreement, reference to the Products as being "best of breed" during
press/analyst briefings.

B.  Sales and Consulting Staff.  VAR shall train a sufficient number of
technical and sales personnel, including any VAR distributors, so that they are
able to: (I) inform End Users of the features and capabilities of the Products;
(ii) service and support the Products in accordance with VAR's obligations under
this Agreement; and (iii) otherwise carry out the obligations and
responsibilities of VAR under this Agreement.

C.  Technical Expertise.  VAR's staff shall be conversant with the technical
language conventional to MicroStrategy Products (including specifications,
features and benefits) so as to be able to explain in detail the use of the
Products in conjunction with the VALEX Response Analyzer product to End Users.

D.  Sales Forecasts.  VAR shall provide MicroStrategy with a forecast of license
sales for the Products upon reasonable request.

E.  Prospect Account Information.  VAR shall share prospect account information
with MicroStrategy sales professionals as reasonably requested.

F.  Compliance with the Law.  VAR shall comply with all applicable
international, national, state, regional and local laws and regulations in
performing its duties hereunder and in any of its undertakings with respect to
the Products.  VAR acknowledges that all MicroStrategy Products and other
technical data, may be subject to export controls imposed by the U.S. Export

                                                                          Page 4
<PAGE>

Administration  Act  of  1979,  as  amended  (the  "Act"),  and  the  applicable
regulations.  VAR shall not export or  re-export  (directly or  indirectly)  any
Products  without  complying with the act and the  regulations  thereunder.  VAR
shall not sign any End User License  Agreement  that would  authorize use of the
Products in any location where use of the Products is restricted by the Act.

G.  Costs and Expenses.  Except as expressly provided herein or agreed to in
writing by MicroStrategy and VAR, VAR shall pay all costs and expenses incurred
in the performance of VAR's obligations under this Agreement.

H.  Use of MicroStrategy Technology.  VAR shall communicate to each End User
that the VALEX Response Analyzer utilizes MicroStrategy technology.  VAR shall
also communicate to each End User that MicroStrategy technology can be sued to
create enterprise decision support applications, and encourage each End User to
meet with a MicroStrategy account executive to discuss additional uses of and
licensing opportunities for MicroStrategy technology.

I.  Feature Restriction in DSS Web PE.  VAR shall be responsible for disabling
the drill up, drill across, drill within, report wizard and saving features of
DSS Web PE when using DSS Web PE under its development, evaluation,
demonstration and sublicensing licenses solely through use of a methodology,
provided by MicroStrategy  as set forth in Section 6.3(C) below.  So long as VAR
properly applies the methodology, VAR shall have no responsibility or liability
in respect of any failure of the methodology to disable such features properly
or fully.

6.2  VAR Covenants.  VAR shall : (I) refrain from deceptive, misleading or
unethical practices related to the Products; (ii) make no false or misleading
representations with regard to the Products; and (iii) refrain from publishing
or employing, or cooperating in the publication or employment of, any misleading
or deceptive advertising material with regard to the Products.  Further, VAR
shall not knowingly take any action in conflict with the terms of this Agreement
or its obligations hereunder.  In addition, during the term of this Agreement,
VAR shall not enter into any agreements that are substantially similar to this
one with Oracle, Arbor, Cognos, Business Objects or Information Advantage for
the right to sublicense business intelligence product competitive to the
Products in conjunction with the VALEX Response Analyzer module.

6.3  MicroStrategy Obligations.

A.  Promotion of VAR.  Within six (6) months of the execution of this Agreement,
MicroStrategy shall promote VAR as a preferred and best breed of CRM solution
partner during press/analyst briefings.

B.  Compliance with Law.  V shall comply with all applicable international,
national, state, regional and local laws and regulations in performing its
duties hereunder and in any of its undertakings with respect to the Products.

C.  Feature-Disabling Methodology for DSS Web PE. MicroStrategy shall provide
VAR with a methodology for disabling the drill up, drill across, drill within,
report wizard and saving features of DSS Web PE by June 14, 1999.

6.4  MicroStrategy Covenants. MicroStrategy shall not knowingly take any action
in conflict with the terms of this Agreement or its obligations hereunder.

6.5  Joint Marketing Obligations.  Within six (6) months of execution of this
Agreement, the parties (each at its own expense) shall : issue a joint press
release, jointly develop collateral on the MicroStrategy/VALEX solution, jointly
develop web-site information and links, jointly attend regional and national
sales meetings, jointly develop a solution overview white paper that discusses
the benefits of integrating DSS Analysis into a CRM solution and coordinate a
multi-city joint seminar series on the value of an integrated business
intelligence/CRM solution.

7.   INTENTIONALLY OMITTED

8.   TRAINING

8.1  Partner Certification Program.  Within ninety (90) days of the execution of
this Agreement and at all times thereafter, VAR shall have on staff at least two
(2) employees who have completed the Gold Level Certification course
("Certification").  Tuition for the first two (2) VAR employees to undergo
Certification is included in the fee for the first thirty (30) Software Packages
set forth in Section 4.1.  Tuition for additional VAR employees who undergo
Certification is not included in such fee.  The fee for each additional VAR
employee who undergoes Certification shall be the fee for the Gold Level
Certification course set forth in Exhibit B, and shall be paid by VAR in
accordance with the payment terms set forth in Section 4.2.  VAR shall be
responsible for all expenses incurred by its employees in connection with
Certification.

8.2  Training Consultants.  Given reasonable advance notice, MicroStrategy shall
make its training consultants available to VAR to provide training on the
Products to VAR's employees.  VAR shall pay MicroStrategy for such services at
the rates set forth in Exhibit B, plus reasonable travel and living expenses.

8.3  Professional Services. MicroStrategy shall make its consultants available
to provide professional services to VAR on mutually-agreeable terms at the rates
set forth in Exhibit B. MicroStrategy agrees to provide an associate consultant
to VAR for thirty(30), eight (8)-hour days to assist with matters related to the
use of the Products in conjunction with the VALEX Response Analyzer under the
terms and conditions of this Agreement, the fee for which is included in the fee
for the first thirty (30) Software Packages set forth in Section 4.1.

9.   MAINTENANCE
                                                                          Page 5
<PAGE>

9.1  MicroStrategy's Technical Support Services.  The fee for first-year
technical support with respect to each Software Package is included in the fee
for each Software Package.  The initial technical support period for each
Software Package shall begin upon delivery of the Software Package to the
applicable End User.  Such technical support services, including maintenance and
upgrade releases of the Products, shall be provided in accordance with
MicroStrategy's current Technical Support Policies and Procedures (attached
hereto as Exhibit D) or policies and procedures that are at least as favorable
to VAR ad those set forth in Exhibit D.  Thereafter, VAR may elect to contract
for additional yearly technical support services.  The annual fee for subsequent
periods of Technical Support shall be equal to eighteen percent (18%) of the net
price paid for the Software Package.  Upon release of a new Product version, VAR
may request, and upon request from AR MicroStrategy shall provide, technical
support for the immediately preceding version of such Product for up to one (1)
year after the release of the new version at no additional cost so long as VAR
is current in payment of its technical support fees.

9.2  Support Services in the Event of Termination.  In the case of termination
of this Agreement, so long as VAR has paid for technical support services,
MicroStrategy shall continue to provide technical support services to VAR for
the balance of any existing technical support period.  After termination of this
Agreement, VAR may choose to purchase technical support from MicroStrategy under
a separate agreement for a period of up to one (1) year.  Subsequently,
MicroStrategy shall make technical support services available directly to the
End User. MicroStrategy agrees that the fee it charges for technical support  it
provides directly to End Users shall not increase by more than twenty percent
(20%) per year in the first two years during which it provides support directly
to End Users.

9.3  Support Services to End Users of VAR.  VAR shall provide any maintenance
and support services required by its End Users, including telephone and, if
provided to End Users for VAR's VALEX software, Internet-based support.  Unless
otherwise agreed between MicroStrategy and VAR, VAR shall not place its End
Users in direct contact with MicroStrategy for support and/or maintenance of
either the Products or the VAR Solution.

10.  FEES, RECORDS AND AUDIT

10.1 Records. VAR shall keep complete and accurate records of all Product
licenses sold. These records shall include, without limitation, the name of the
Product, date of licensing, the number of licenses sold and the complete name,
address and other contact information for each End User of the Products (the
"Records"). VAR shall maintain, for at least two (2) years after expiration or
termination of this Agreement, its Records, contracts and accounts reasonably
relating to the sale or license of the Products under this Agreement. VAR shall
permit examination thereof by authorized representatives of MicroStrategy upon
reasonable notice, during VAR's normal business hours, at all reasonable times
during the term of this Agreement and for such two (2) year period thereafter.
MicroStrategy may not audit VAR more than once annually, unless irregularities
are discovered.

10.2  Reporting Obligations.  Within five (5) business days after the end of
each month, VAR shall provide MicroStrategy with a written report summarizing
the Records related to sublicensing transactions concluded during such month.

10.3  Notification.  VAR shall: (i) report promptly to MicroStrategy all claimed
or suspected defects in the Products and (ii) notify MicroStrategy in writing of
any change in VAR's voting control or transfer of all or substantially all of
VAR's assets within thirty (30) days of such occurrence.

11.  LIMITATION OF WARRANTY AND LIABILITY

11.1.1  LIMITED WARRANTY

A.  Media Warranty. MicroStrategy warrants to VAR that the media containing the
Products sublicensed  to a particular End User is free from defects in material
and workmanship for a period of ninety (90) days from the date of delivery to
such End User. MicroStrategy also warrants to VAR that the media containing the
Products licensed to VAR for use in respect of the Development Package,
evaluation license and demonstration license is free from defects in material
and workmanship for a period for ninety (90) days from the date of delivery to
VAR.  For any breach of these warranties, VAR's exclusive remedy and
MicroStrategy's entire liability shall be replacement of defective media
returned within the warranty period.

B.  Product Warranty. MicroStrategy warrants to VAR for a period of ninety (90)
days from the date of delivery of the Products to a particular End User that,
with respect to such End User, each unmodified Product sublicensed to such End
User will perform in substantial conformance with the functions described in the
User Documentation.  In addition, MicroStrategy warrants to VAR through June 30,
2000 that the unmodified Products will not fail or produce incorrect results
when processing with four (4)-digit dates for the year 2000 and later years;
provided, however, that MicroStrategy makes no warranty with respect to any such
failure or incorrect result that may arise due to: (i) the quality of the data
sought to be processed with the Software; (ii) the effect of other software not
licensed by MicroStrategy to VAR or developed by MicroStrategy for VAR; or (iii)
the use of the software in an operating environment or on a platform not
specified by MicroStrategy.  Product warranty claims must be brought within the
warranty period.  For any breach of this warranty, VAR's exclusive remedy and
MicroStrategy's entire liability shall be, at MicroStrategy's sole discretion,
the correction of the Product errors that cause breach of warranty, replacement
of the Product, or return of the fees paid to MicroStrategy for the Product upon
VAR's  return of the Product to MicroStrategy.
                                                                          Page 6
<PAGE>

C.  Disclaimer of Other Warranties.  THE WARRANTIES ABOVE ARE EXCLUSIVE AND IN
LIEU OF ALL OTHER WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
MICROSTRATEGY DOES NOT WARRANT THAT USE OF PRODUCTS WILL BE UNINTERRUPTED OR
ERROR FREE, OR THAT THE FUNCTIONS CONTAINED IN PRODUCTS WILL MEET THE USERS'
REQUIREMENTS.

11.2  Limitation of Liability.  EXCEPT AS SET FORTH IN SECTION 12 BELOW,
MICROSTRATEGY'S LIABILITY FOR DAMAGES UNDER THIS AGREEMENT SHALL BE LIMITED TO
MONETARY DAMAGES, AND THE AGGREGATE AMOUNT THEREOF FOR ALL CLAIMS RELATING TO
ANY PARTICULAR PRODUCT SHALL IN NO EVENT EXCEED AN AMOUNT EQUAL TO THE AGGREGATE
FEES PAID BY VAR FOR SUCH PRODUCT.  THE WARRANTIES GRANTED TO VAR HEREIN ARE
PERSONAL TO VAR AND SHALL NOT ACCRUE TO ANY THIRD PARTY INCLUDING ANY END USER.
UNDER NO CIRCUMSTANCES SHALL MICROSTRATEGY BE LIABLE FOR WARRANTIES GRANTED BY
VAR IN EXCESS OF THOSE GRANTED TO VAR HEREIN.  EXCEPT WITH RESPECT TO ANY THIRD-
PARTY CLAIM FOR INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES, OR
AMAGES FOR LOSS FO PROFITS, REVENUE, DATA OR USE, THAT IS PART OF A CLAIM FOR
WHICH A PARTY HAS AN INDEMNIFICATION OPLIGAGION UNDER SECTION 12, NEITHER PARTY
SHALL BE LIABLE TO THE OTHER OR TO ANY THIRD PARTY UNDER ANY CIRCUMSTANCES FOR
ANY INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES, OR DAMAGES FOR LOSS
OF PROFITS, RVENUE, DATA OR SUE, EVEN IF THE PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

11.3  Reliance on Disclaimers.  Each party acknowledges that the other party has
set its prices and/or entered into this Agreement in reliance on the disclaimers
of liability, the disclaimers of warranty and the limitations of liability set
forth in this Agreement and that the same form an essential basis of the bargain
between the parties.

12.  INDEMNIFICATION

12.1 Indemnification of VAR. MicroStrategy shall defend and indemnify VAR
(including paying all reasonable attorney's fees and costs of litigation)
against and hold VAR harmless from any and all third-party claims that the
Products infringe a patent, trade secret or copyright of any third party in the
Territory, provided that VAR: (i) promptly notifies MicroStrategy in writing
such a claim, (ii) allows MicroStrategy to have sole control of the defense and
all related settlement negotiations, and (iii) provides MicroStrategy with the
information, authority and assistance, at MicroStrategy's expense, necessary to
perform MicroStrategy's obligations under this Section. In the event the
Products are held or believed to infringe, MicroStrategy may, at its sole
option, (I) obtain for VAR a license to continue using the Product, (ii) replace
or modify the Product so that it becomes noninfringing and is substantially
similar in functionality and operation or (iii) if neither (I) nor (ii) can be
reasonably effected by MicroStrategy, refund to VAR an amount equal to the
prices paid for the Products less twenty percent (20%) of the prices paid for
each year that has passed since the Products were delivered to VAR, provided
that such Products are returned to MicroStrategy in an undamaged condition and
all licenses to such Products are terminated. MicroStrategy acknowledges and
agrees that its indemnity obligations as set forth above shall apply to any End
User claim to VAR for indemnity under the End User License Agreement; provided
that MicroStrategy shall not be liable to VAR for VAR's losses, damages,
liabilities, or expenses in respect of any End User claim to the extent VAR's
indemnity obligation to such End User exceeds MicroStrategy's indemnity
obligations hereunder.

12.2 Excluded Claims. Notwithstanding Section 12.1 above, MicroStrategy shall
not be liable to VAR for any claim caused by the combination, operation or sue
of any Product with equipment, data or programming not supplied by MicroStrategy
(including the VALEX Response Analyzer product) or for other than an intended
purpose as set forth in the User Documentation, or arising from any alteration
or modification of the Products.

12.3 Limitation. THE PROVISIONS OF THIS SECTION SET FORTH THE ENTIRE LIABILITY
OF MICROSTRATEGY AND THE SOLE REMEDIES OF VAR WITH RESPECT TO INFRINGEMENT AND
ALLEGATIONS OF INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR OTHER PROPRIETARY
RIGHTS OF ANY KIND IN CONNECTION WITH THE INSTALLATION, OPERATION, DESIGN,
DISTRIBUTION OR SUE OF MICROSTRATEGY PRODUCTS.

12.4 Indemnification of MicroStrategy.

VAR shall defend and indemnify MicroStrategy (including paying all reasonable
attorney's fees and costs of litigation) against and hold MicroStrategy harmless
from any and all claims by any other party resulting from VAR's negligent or
tortious acts, omissions or misrepresentations relating to the marketing,
sublicensing, distribution, demonstration, evaluation or use of the Products,
and any and all claims by any other party resulting from VAR's warranty of the
Products in a manner that is more favorable than the manner in which
MicroStrategy warrants the Products to VAR in Section 11 of this Agreement,
regardless of the form of action of provided that MicroStrategy : (i) promptly
notifies VAR in writing of any such claim, (ii) allows VAR to have sole control
of the defense and all related settlement negotiations, and (iii) provides VAR
with the information, authority and assistance necessary to perform VAR's
obligations under this Section.

                                                                          Page 7
<PAGE>

13.   CONFIDENTIAL AND PROPRIETARY INFORMATION

13.1  Confidentiality.  The parties agree to hold each other's Confidential
Information in confidence during the term of this Agreement and for a period of
five (5) years after termination of this Agreement.    The parties agree that,
unless required by law, they shall not make each other's Confidential
Information available in any form to any third party or use each other's
Confidential Information for any purpose other than the implementation of this
Agreement.  The receiving party shall not, either directly or through any third
party, use any Confidential Information of the disclosing party to create,
modify or enhance any computer software program or user documentation that is
substantially similar to any Confidential Information of the disclosing party.
The obligation of the parties not to disclose information shall not apply to
information that: (i) is or becomes a part of the public domain through not act
or omission of the other party; (ii) was in the other party's lawful possession
prior to the disclosure and had not been obtained by the other party either
directly or indirectly from the disclosing party; (iii) is lawfully disclosed to
the other party by a third party without restriction on disclosure; or (iv) is
independently developed by the other party as demonstrated by documentary
evidence.  In the event that the receiving party becomes aware of an
unauthorized use or disclosure of Confidential Information of the disclosing
party, the receiving party shall promptly inform the disclosing party and
provide reasonable assistance to the disclosing party,  at the disclosing
party's expense, in the investigation and prosecution of any such unauthorized
disclosure.

13.2  Authorized Disclosure.  Either party may disclose the existence of this
Agreement, but not its content, without the prior consent of the other party.

13.3  Copyright and Trademark Notices.  The use of MicroStrategy's trademark(s),
brand-names, and other notices of proprietary rights shall be in the manner
reasonably specified by MicroStrategy from time to time.  VAR agrees not to
alter, erase, deface or overprint any such notice on anything provided by
MicroStrategy  VAR shall include the appropriate trademark notices when
referring to any MicroStrategy Product in advertising and promotional materials.

13.4  Limited Trademark License.  Subject to the restrictions herein,
MicroStrategy hereby grants to VAR a limited, revocable license to us the trade
names, trademarks, service marks, logos and designations associated with the
Products solely in connection with the activities of VAR that are permitted
under this Agreement. VAR shall submit to MicroStrategy for approval, such
approval not to be unreasonably withheld, prior to use, distribution, or
disclosure, any advertising, promotion or publicity in which the trade names,
trademarks, service marks, logos or designations of MicroStrategy are used.
MicroStrategy shall have the right to require, at its sole reasonable
discretion, the correction or deletion of any misleading, false or objectionable
material from any such advertising, promotion or publicity.

13.5  No Proprietary Rights.  VAR has paid no consideration for the use of
MicroStrategy's trade names, trademarks, logos or designations, and nothing
contained in this Agreement will give VAR any ownership right, title or interest
in any of them other than as explicitly set forth in Section 13.4.  VAR
acknowledges that MicroStrategy owns and retains all trade names, trademarks,
service marks, logos, designations, copyrights, and patent and moral rights in
or associated with the Products.  VAR shall not have or acquire by virtue of
this Agreement or otherwise any vested, proprietary or other right in the
promotion of MicroStrategy Products or in "goodwill" created by its efforts
hereunder.  All such "goodwill" shall accrue to MicroStrategy.

13.6  No Continuing Rights.  Upon expiration or termination of this Agreement,
VAR shall, within fifteen (15) days of the effective date of such expiration or
termination, cease all display, advertising and use of all MicroStrategy
trademarks, trade names, logos or designation that are, or any part of which
are, similar to or confusing with any trademarks, trade names, logos or
designations associated with MicroStrategy.

13.7  Obligation to Protest.  VAR agrees to use commercially reasonable efforts
to protect MicroStrategy's proprietary rights and to cooperate with
MicroStrategy in MicroStrategy's efforts to protect its proprietary rights.  VAR
agrees to notify MicroStrategy promptly of any known or suspected breach or
infringement of MicroStrategy's proprietary rights that comes to VAR's
attention.

14.   TERM AND TERMINATION

14.1  Term.  This Agreement shall be effective as of the Effective Date, and
shall have a term of one (1) year.

14.2  Termination for Cause.  A party may terminate this Agreement upon written
notice at any time prior to the expiration of its stated tern if: (i)
intentionally omitted; (ii) a receiver is appointed for the other party or any
of its property; (iii) the other party makes an assignment for the benefit of
its creditors; (iv) any proceedings are commenced by, for or against the other
party under any bankruptcy, insolvency or debtor's relief law; (v) the other
party is liquidated or dissolved; or (vi) the other party is in default with
respect to any material term or condition of this Agreement or any other
agreement between the parties and such failure or default continues unremedied
for a period of thirty (30) days following the defaulting party's receipt of
written notice of such failure or default.

14.3  Orders After Termination Notice.  If any notice of termination of this
Agreement is given by MicroStrategy, MicroStrategy shall be entitled to reject
all or part of any orders received from VAR after notice but prior to the
effective date of termination if availability of Products is insufficient at
that time to fully meet the needs of MicroStrategy and its customers.  If any

                                                                          Page 8
<PAGE>

notice of termination of this Agreement is given by VAR, MicroStrategy shall
fulfill all orders received from VAR up to and including the effective date of
termination, subject to Section 5.2.

14.4  Effect of Termination or Expiration.  Upon termination of this Agreement,
VAR shall return to MicroStrategy, or destroy and certify in writing to
MicroStrategy the destruction of, all MicroStrategy Confidential Information
(including inventory) and all Collateral in VAR's possession.

14.5  No Damages for Termination or Expiration.  NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR DAMAGES OF ANY KIND, INCLUDING INCIDENTAL OR CONSEQUENTIAL
DAMAGES, SOLELY BECAUSE OF TERMINATION OR EXPIRATION.  VAR acknowledges that (i)
VAR has no expectation and has received no assurances that any investment by VAR
in the promotion of MicroStrategy Products will be recovered or recouped or that
VAR will obtain any anticipated amount of profits by virtue of this Agreement.
THE PARTIES ACKNOWLEDGE THAT THIS SECTION HAS BEEN INCLUDED AS A MATERIAL
INDUCEMENT FOR THEM TO ENTER INTO THIS AGREEMENT AND THAT THE PARTIES WOULD NOT
HAVE ENTERED INTO THIS AGREEMENT BUT FOR THE LIMITATIONS OF LIABILITY AS SET
FORTH HEREIN.

14.6  Survival.  MicroStrategy's rights to payment of, and VAR's obligations to
pay MicroStrategy, all amounts due hereunder, as well as VAR's obligations under
Sections 10.1, 12,13,14, and 15 and MicroStrategy's obligations under Sections
9.2, 11, 12, 13, 14 and 15 shall survive termination or expiration of this
Agreement.

15.   GENERAL

15.1  Independent Contractors.  Both parties to this Agreement are independent
contractors, and shall so represent themselves to all other parties.  There is
no relationship of partnership, agency, employment, franchise, or joint venture
between the parties.  Neither party has any express or implied right or
authority to bind the other or incur any obligation on behalf of the other.  In
particular, nothing herein shall be interpreted as making VAR the commercial
agent of Micro Strategy.

15.2  Assignment.  This Agreement shall not be assigned by either party without
the prior, written consent of the other party; provided, however, that neither
party shall unreasonably withhold its consent to the assignment of this
Agreement to the successor-in-interest of the other party.  VAR may only consent
to the assignment of the Products by an End User who has licensed the Products
under an End User License Agreement if the party to whom the assignment is made
agrees in writing to be bound by the terms of the End User License Agreement.
VAR shall provided written notice of any assignment by an End User to
MicroStrategy.

15.3  Force Majeure.  Neither party shall be responsible for failure of
performance due to causes beyond its control, including, but not limited to,
acts of God or nature, labor disputes, actions of any Government agency, and
shortage of materials.  This provision shall not apply to any obligation to pay
money to the other party under this Agreement.

15.4  Notices.  All notices, including notices of address change, required to be
sent under this Agreement shall deemed to have been given when mailed by first
class mail to the relevant address listed in the signature block of this
Agreement or the address stated in any applicable notice of change of address.
To expedite order processing, VAR agrees that MicroStrategy may treat documents
faxed by VAR to MicroStrategy as original documents; nevertheless, either party
may require the other to exchange original, signed documents.

15.5  Waiver.  The waiver by either party of any default or breach of this
Agreement (a) shall be in a writing signed by the waiving party and (b) shall
not constitute a waiver of any other or subsequent default or breach.  Except
for actions for nonpayment or material breach of MicroStrategy's proprietary
rights in the Products or for indemnification of VAR by MicroStrategy for
infringement by the Products, no action, regardless of form, arising out of the
Agreement may be brought by either party more than one (1) year after the cause
of action has accrued.

15.6  Severability.  If any provision of this Agreement is held to be invalid or
unenforceable, the remaining portions of this Agreement shall remain in full
force.

15.9  Entire Agreement.  This Agreement constitutes the complete agreement
between the parties and supersedes all prior agreements and representations,
written or oral, concerning the subject matter of this Agreement.  This
Agreement may not be modified or amended except in a writing signed by a duly-
authorized representative of each party.  No other act, document, usage or
custom shall be deemed to amend or modify this Agreement.

15.10  Section Headings.  Section headings are for purposes of convenience and
shall not be considered part of this Agreement.

15.11  Governing Laws.  This Agreement, and all matters arising out of or
relating to this Agreement, shall be governed by the laws of the Commonwealth of
Virginia, excluding its conflicts laws.  In the event of any conflict between
foreign laws, rules and regulations and those of the United States, the laws,
rules and regulations of the United States shall govern.  The United Nations
Convention on Contracts for the International Sale of Goods shall not apply to
this Agreement.

15.12  Due Executions.  The signatory executing this Agreement on behalf of each
party represents and warrants that he or she is duly-authorized to do so.

                                                                          Page 9
<PAGE>

MICROSTRATEGY INCORPORATED  EXCHANGE APPLICATIONS, INC.

By: _____________________________  By:     [Illegible]
                                         -------------------------
Name: ___________________________  Name: _________________________

Title: __________________________  Title: ________________________

Date: ___________________________   Date: ________________________



                                                                         Page 10
<PAGE>

                                   EXHIBIT A

                       DEVELOPMENT PACKAGE AND TERRITORY

o       Development Package.  The Development Package includes the following
        MicroStrategy products, along with related User Documentation, for the
        number ofNamed Users specified.

        DSS Web PE (data surf feature only) for 10 Named Users
        DSS Server for 10 Named Users
        DSS Architect for 10 Named Users
        DSS Agent for 10 Named Users

        MicroStrategy shall waive the license fee for the Development Package
        and the annual maintenance fee for the Development Package for the
        first technical support period (April 1, 1999 through March 31, 2000).
        The annual maintenance fee for the Development Package for the
        technical support period beginning on April 1, 2000 and running through
        March 31, 2001, as well as for subsequent technical support periods,
        shall be $11,792.

        During the term of the Agreement, MicroStrategy shall offer VAR the
        option of participating in any beta programs run by MicroStrategy with
        respect to the software included in the Development Package.



                                                                         Page 11
<PAGE>

                                   EXHIBIT B

                                      FEES

Education Price Schedule

STANDARD COURSES

<TABLE>
<CAPTION>

Course                    Price Per Student     Price Per Day at         Duration
                           at MicroStrategy       Customer Site
                                 Site          (limit 15 students)
---------------------------------------------------------------------------------
<S>                        <C>                     <C>                   <C>
Introduction to DSS              $1,495           Not Available            2 days
and Data
Warehousing
---------------------------------------------------------------------------------
Fundamentals of                  $1,495              $4,000 plus           2 days
DSS Agent and                                           expenses
Architect
---------------------------------------------------------------------------------
Data Warehousing                 $1,495              $4,000 plus           2 days
Data Modeling                                           expenses
and Design
---------------------------------------------------------------------------------
Enterprise DSS--                 $2,095              $4,000 plus           3 days
Managing Your                                           expenses
Environment
---------------------------------------------------------------------------------
Advanced DSS                     $1,495              $4,000 plus           2 days
Agent and Architect                                     expenses
---------------------------------------------------------------------------------
DSS Fast Track                   $2,995              $4,000 plus           5 days
                                                        expenses
---------------------------------------------------------------------------------
Building                         $1,495               $4000 plus           2 days
Applications Using                                      expenses
DSS Objects
---------------------------------------------------------------------------------
Building                         $2,095              $4,000 plus           3 days
Applications Using                                      expenses
the DSS Web API
---------------------------------------------------------------------------------
DSS                              $1,495              $4,000 plus           2 days
Implementation                                          expenses
Methodoloy and
Risk Management
---------------------------------------------------------------------------------
DSS Engine SQL                   $1,495              $4,000 plus           2 days
Generation                                             expenses
---------------------------------------------------------------------------------
DSS                              $  750              $4,000 plus            1 day
Troubleshooting                                         expenses
---------------------------------------------------------------------------------
</TABLE>



CERTIFICATION COURSES

<TABLE>
<CAPTION>

Course                     Price Per Student      Price Per Day at       Duration
                            at MicroStrategy        Customer Site
                                  Site           (limit 15 students)
---------------------------------------------------------------------------------
<S>                          <C>                     <C>                      <C>
Train the Trainer                $2,095              $4,000 plus           3 days
for DSS Agent                                           expenses
---------------------------------------------------------------------------------
Gold Level                       $3,000              $4,000 plus           5 days
Certification                                           expenses
---------------------------------------------------------------------------------
MCDSE*                           $5,000              $4,000 plus          15 days
(Platinum Level)                                        expenses
Certification
---------------------------------------------------------------------------------
*MCDSE-MicroStrategy Certified Decision Support Engineer
</TABLE>


For detailed descriptions of all education courses and certifications contact
your Account Manager.

VAR is entitled to a thirty percent (30%) discount off the prices identified
under the Standard Course Listings in the Education Price Schedule.  This is the
only discount that applies to Standard Course Listings and is in lieu of any
other discounts offered to VAR.  Certification Courses are not subject to any
VAR discount.

Courseware Licensing

VAR has the option to license MicroStrategy courseware, both instructor-led and
web-based templates.  Licensing courseware includes electronic versions of
course manual or web-based tutorial, exercises, and databases where applicable.
MicroStrategy courseware is subject to product discounts.  Courseware is
licensed on a Named User basis and subject to the MicroStrategy Product
licensing restrictions set forth in the VAR Agreement.

                                                                         Page 12
<PAGE>

COURSEWARE CUSTOMIZATION

MircroStrategy Education Courses, including instructor-led and web-based
training applications, can be customized by a MicroStrategy training consultant
at a fee of $2,500 per day, plus reasonable travel and living expenses.  This
price is not subject to VAR discount.

2.0 User Documentation Pricing.  The User Documentation is included with each
copy of the software.  Additional copies of the User Documentation may be
purchased by VAR for $49 per manual.

3.0 Consulting Price Schedule
<TABLE>
<S>                   <C>         <C>
Assoc. Consultant           $200    per hour
--------------------------------------------
Sr. Consultant or           $225    per hour
Manager
--------------------------------------------
Senior Manager              $250    per hour
--------------------------------------------
</TABLE>
VAR is entitled to a twenty present (20%) discount off the prices identified in
the Consulting Price Schedule.

                                                                         Page 13
<PAGE>

                                   EXHIBIT C

                   VAR DEMONSTRATION AND EVALUATION LICENSES

MicroStrategy authorizes VAR to use up to twenty (20) copies of the Products in
connection with its license to demonstrate the Products.  MicroStrategy shall
provide VAR with up to one (1) copy of each Product for demonstration use.  VAR
may make copies of the Products for demonstration use so long as the total
number of copies of each Product being used in connection with the license to
demonstrate the Products does not exceed twenty (20).

MicroStrategy authorizes VAR to use up to ten (10) copies of the Products in
connection with its license to grant evaluation licenses.  MicroStrategy shall
provide VAR with up to one (1) copy of each Product for evaluation use.  VAR may
make copies of the Products for evaluation use so long as the total number of
copies of each Product being used in connection with the license to grant
evaluation licenses does not exceed ten (10).


                                                                         Page 14
<PAGE>

                                   EXHIBIT D

                    TECHNICAL SUPPORT POLICES AND PROCEDURES

For customers who purchase Technical Support services for software products it
has licensed from MicroStrategy (the "Products"), MicroStrategy provides
maintenance and support, and free Product Updates (as such term is defined in
the Software License Agreement between the customer and MicroStrategy).  Support
services include answering questions with regard to the operation of the
software and troubleshooting.  Support services do not include services which,
in the usual course of MicroStrategy's business, are provided to customers as
consulting services.  Such consulting services include, but are not limited to,
custom application development, date warehouse design, requirements analysis,
and database design.

TECHNICAL SUPPORT
Telephone support from the United States office may be obtained by a Customer's
Support Liaison (as defined below) in the following ways:


      o     Phone:          (703) 848-8700
                            9:00 A.M. - 7:00 P.M. EST;
                            1400-000 GMT
                            Monday through Friday on non-holidays
      o     Fax:            (703) 848-8710
      o     E-mail:         support@strategy.com
      o     Message:        (703) 848-8709


If a customer is unable to reach MicroStrategy Technical Support by phone, a
voice mail message may be left.  When leaving a voice mail message, the
following information should be stated:

      o     Name
      o     Company
      o     Phone Number
      o     MicroStrategy software Product(s) being used, including software
            version and Product registration numbers
      o     Fax Number
      o     E-mail Address

Upon logging an issue, a customer will receive an issue identification number
for future reference.

A "Support Liaison" is defined as a person whom Customer has designated as a
point-of-contact with MicroStrategy's support personnel.  The Customer must
designate a single employee to serve as the Support Liaison.  Customer may
change its Support Liaison on occasion, if necessary, so long as it provides
written notice to MicroStrategy of such change.

TECHNICAL SUPPORT OBJECTIVES

MicroStrategy's Technical Support staff is committed to responding to and
resolving customer issues in a manner which satisfies our customers.  The
objectives of Technical Support are the following:

      o     Keeping customers informed of the status of their issues as those
            issues are being resolved.

      o     Keeping customers informed of the status of upcoming production
            releases and maintenance versions.

      o     Providing customers with a mechanism for escalating issues.

 Our policy is to meet the following response objectives:

      o     Answering customer contacts directly, whenever possible; otherwise,
            acknowledging all contacts within 2 hours.

      o     Responding to each issue immediately whenever possible; and
            otherwise, responding to the customer within 1 business day, with
            details on MicroStrategy's progress in resolving the issue and/or
            intended plan of action.


                                                                         Page 15
<PAGE>

      o     Notifying each customer within 1 business day when the status of any
            of that customer's feature requests or ongoing issues changes, or
            when a fix for any of the customer's issues or feature requests is
            ready in a new version of the software;

      o     Consider an issue to be resolved only when the customer understands
            and agrees with the actions that have been taken and the
            consequences of those actions.

PRIORITIZATION OF ISSUES

Priority levels are assigned to each issue during the initial call, whenever
possible.  Our objective is to assign a prioritization level to all issues
within one business day.  These prioritization levels are used to ensure that
important issues are resolved quickly and determine the escalation procedures
for an issue.

Priority 1: A production system is down or severely impacted as a result of a
MicroStrategy software Product. Examples include, General Protection Faults
(crashes), corrupted or incorrect data, or connection problems due to the
software.

Priority 2: Customer has a serious issue with a feature necessary to its work
for which it has discovered no workaround and which completely prevents the
feature from being used.

Priority 3: Customer has a serious issue with a feature for which a work-around
exists, a minor issue with a feature for which no work-around exists or a
critical usage question.

Priority 4: Customer has a minor issue with a feature for which a work-around
exists, a usage question or a high priority enhancement request.

Priority 5: Customer has a minor question, issue or enhancement request.

ESCALATION PROCEDURES

MicroStrategy Technical Support will attempt to resolve, as quickly as possible,
all technical support issues and questions regarding the Products.  If, however,
the customer is not satisfied with the responsiveness or the quality of the
Support received, it may indicate a desire to escalate the priority level of an
issue.

Escalation Level 1:          Incoming customer call is received by MicroStrategy
Technical Support and logged.  A Technical Support Representative attempts to
resolve the issue.  Feature requests, questions, and known bugs may be
immediately resolved.

Escalation Level 2:          A Technical Support Engineer is assigned
responsibility for the issue and attempts to resolve the issue to the
satisfaction of the customer.

Escalation Level 3:          The issue is escalated to the Technical Support
Team Lead.

Escalation Level 4:          The issue is escalated to either the Field
Engineering, Development or Consulting departments for resolution.

Escalation Response
MicroStrategy's goal is to meet the following response times:

Priority 1 Issues:
      Escalated to Level 1 within 2 Hours.
      Escalated to Level 2 within 4 Hours.
      Escalated to Level 3 within 24 Hours.
      Escalated to Level 4 within 48 Hours.
                                                                         Page 16
<PAGE>

Priority 2 Issues:
     Escalated to Level 1 within 2 Hours.
     Escalated to Level 2 within 24 Hours.
     Escalated to Level 3 within 48 Hours.
     Escalated to Level 4 within 5 Days.

Priority 3 Issues:
     Escalated to Level 1 within 2 Hours.
     Escalated to Level 2 within 48 Hours.
     Escalated to Level 3 within 5 Days.
     Escalated to Level 4 during monthly status report.

Priority 4 Issues:
     Escalated to Level 1 within 2 Hours.
     Escalated to Level 2 within 5 Days.
     Escalated to Level 3 during monthly status report.
     Escalated to Level 4 during monthly status report.

Priority 5 Issues:
     Escalated to Level 1 within 2 Hours.
     Escalated to Level 2 within 10 Days
     Escalated to Level 3 during monthly status report.
     Escalated to Level 4 during monthly status report.

A customer may request escalation of an issue to a higher priority level if any
of the following occurs:

     o  The MicroStrategy Technical Support
        staff is not adhering to the policies outlined in this Technical Support
        Policy.

     o  Customer feels that an issue was assigned a lower priority than it
        deserves,

     o  Customer feels that escalation is warranted by special circumstances.

Customer may request escalation of an issue to a higher priority level by
calling the support line and asking to discuss the matter with the Technical
Support Manager.

PRODUCT UPGRADES

Technical Support includes free Product Updates (as such term is defined in the
Software License Agreement between the customer and MicroStrategy).



                                                                         Page 17
<PAGE>

 Confidential Materials ommitted and filed separately with the Securities and
                Exchange Commission. Asterisks denote omission.

                                    Exhibit C
                                    Work Plan

This Exhibit A sets forth the development objectives and resource commitments of
the parties.

A.  Resource Commitments

As part of this Agreement, MicroStrategy will provide an average over any six
(6) month period, of at least [**] the Developed Products. Exchange Applications
will provide at least [**] and [**] to ensure relevant and successful product
releases. The parties acknowledge and agree that there will be some time (not to
exceed 30 days) to get all the personnel on board and working.

While the skill profile may vary over the term of the agreement, MicroStrategy
initially will supply people with the following skills breakdown:

        [**]
        [**]
        [**]
        [**]
        [**]
        [**]
        [**]


B.  Product Development Overview

The dedicated resources outlined above will strive to develop world class CRM
applications that can be distributed independently of or in combination with
[**] products. The product development process will be prioritized to achieve
the following objectives:

   1. Creation [**] and applications to the following [**]. The data models will
      include schemas to support the [**] to include [**] and standard industry
      customer data. The applications will include (without limitation) [**] and
      [**] and [**] and [**], and [**].
   2. Provide a full demonstration software environment to be run at Exchange
      Applications facilities and demonstrated by remote sales personnel.
   3. Provide platform support for [**].
   4. Ensure Internationalization of the full application code base (including
      MicroStrategy applications) which will include [**] Provide resources to
      localize the application as required.
   5. Provide the following eCRM specific functionality:
          -  Develop [**] between [**] and [**].

          -  Provide [**] control. This capability will allow for [**]; and
             must also be [**].

                                       1
<PAGE>

 Confidential Materials ommitted and filed separately with the Securities and
               Exchange Commission. Asterisks denote omissions.

          -  Create [**] campaigns.  This would allow for fitting of a [**] to
             the [**].

          -  Provide [**]
   6. Define [**] or incorporate a [**] for [**] between this application, [**].
   7. Integrate [**] with that of [**].
   8. Complete [**] that is [**] to provide [**] for a [**]. The [**] definition
      and report [**].
   9. Integrate [**].


The parties may also consider implementing the following functionality in the
latter part of the initial term if the parties determine the functionality is
feasible and makes commercial sense.  These will not be part of the initial
implementation.


   1. Design [**]  and reporting [**] as an [**].
   2. Establish [**] an [**] analysis and [**] analysis.
   3. Develop [**] data [**] data.
   4. Integrate [**] this [**] and other [**].
   5. Integrate this [**] with [**] to provide a vehicle for [**] and [**].
   6. Design [**] that [**] or [**] data to [**]. These packaged
      solutions may also utilize [**]. Following is list of applications and
      initial prioritization:

          a. [**] and [**] through [**].
          b. [**] and [**], etc.
          C. [**] notice, etc.

                                       2
<PAGE>

  Confidential Materials omitted and filed separately with the Securities and
               Exchange Commission. Asterisks denote omissions.

C. Product Development Short Term Milestones

The dedicated resources will work towards the following initial deliverables.
The details behind these deliverables will be established by the Steering
Committee.

     Number of Days
     After Execution     Deliverable Milestone
     ---------------     ---------------------

           [**]          [**] complete
                         [**] complete
                         [**] complete
                         [**] complete


           [**]          [**] complete
                         [**] complete
                         [**] complete

D. Product Development Medium-Term Milestones

The parties agree to use commercially reasonable efforts to work towards meeting
the following additional milestones, provided that Exchange Applications
constrains the scope so that it is feasible to complete the project within these
timeframes of the milestones.

     Number of Days
     After Execution    Deliverable Milestone
     ---------------    ---------------------

        [**]            [**] complete

        [**]            [**] complete

        [**]            [**] complete
                        [**] complete

        [**]            [**] platforms
                                       3
<PAGE>

                                   Exhibit D
                               Steering Committee

This Exhibit 8 sets forth the general operating parameters of the Steering
Committee contemplated by the parties.

A. General Philosophy and Intent

The development effort outlined in this Agreement, will be jointly managed by a
four person steering committee.  MicroStrategy and Exchange Applications will
each provide two members to participate in the steering committee.  This
committee will meet weekly and will have the responsibility and complete
authority for delivering on product commitments.

The steering committee will establish and approve an oversight process to define
mechanisms for participation in and approval of key strategy, product and
management decisions.  The committee will appoint a leader of each of the
processes from the organization (either MicroStrategy or Exchange Applications)
as identified below.

In the event that the steering committee does not reach agreement on the
approval, content or strategy of specific deliverables, the lead organization
for each process will have final rights to define the deliverable.  The
organization identified as lead for each process will have final say in the
event that the steering committee deadlocks on specific decisions.

B. Process

Overall this team will be responsible for all processes associated with delivery
of Developed Products including the following processes:

Process 1 (Lead Exchange Applications and MicroStrategy) Product direction and
planning (including requirements and functional prioritization)

     -  Exchange will provide a team leader to establish and manage a standard
        product planning process to include the following process steps:
     -  Vision Solution Definition
     -  Product description and objectives
     -  Product Requirements
     -  Competitive Analysis
     -  Plan Approval and Coordination
     -  Product Plan Change Management
     -  Specification Approval
     -  Each quarter, this team will define deliverables and milestones for the
        following quarter's delivery to be used as a measure for successful
        progress for this overall relationship.
     -  Technical and functional standards definition and functional and
        technical specification approval.

Process 2 (Lead Exchange Applications) Release management and final release
approval
     -  Exchange will assign the team lead for this activity and define the
        standard processes and deliverables on an ongoing basis.

Process 3 (Lead MicroStrategy) Staffing and Technical Operations

     -  MicroStrategy will assign a senior development manager to lead the
        design and development processes.  MicroStrategy will allow Exchange to
        interview and approve candidates for this role within seven days of the
        agreement of the OEM agreement.
<PAGE>

Process 4 (Lead MicroStrategy) Technical Design and Development processes.

Process 5 (Lead MicroStrategy) QA processes and standards.

C. Escalation

In the event that the parties fail to agree on the items contemplated by Process
1, to the satisfaction of the other party then either party may call a special
meeting of the 'Principals' who shall be Sanju Bansal and Andy Frawley.  The
Principals shall confer at their earliest reasonable opportunity and make their
best efforts to agree a resolution within ten (10) working days. If the
Principals fail to reach an agreement in that time frame Andy Frawley may make
the final decision.

For all other Processes, in the event that any part of the process defined
herein fails to be resolved to the satisfaction of the other party then either
party may call a special meeting of the 'Principals' who shall be defined as the
authorized signatories of this agreement or their mutually agreed upon nominee.
The Principals shall confer at their earliest reasonable opportunity and make
their best efforts to agree a resolution within ten (10) working days.
<PAGE>

                                   EXHIBIT E
                                   ---------
<PAGE>

                                      -2-

          PAYMENT AND REGISTRATION RIGHTS AGREEMENT dated as of December 28,
     1999 (this "Agreement"), between EXCHANGE APPLICATIONS, INC., a Delaware
     corporation ("Exchange"), and MICROSTRATEGY INCORPORATED, a Delaware
     corporation ("MicroStrategy").


     The parties hereby agree as follows:

                           ARTICLE I.

                          Definitions and Construction

            Section 1.01. Certain Definitions. As used in this Agreement, the
     following terms shall have the meanings specified below:

           "Business Day" shall mean any day other than a day, which is a
     Saturday, or Sunday or any other day on which commercial banks in New York,
     New York are authorized or required to remain closed.

          "Business Unit" shall have the meaning set forth in the Development
     Agreement.

          "Closing" shall mean the payment of the Closing Payment on the Closing
     Date.

          "Closing Date" shall mean December 28, 1999.

          "Closing Share Amount" shall mean the number of shares of Common Stock
     (rounded to the nearest whole number) equal to the result obtained by
     dividing (a) $20, 000, 000 by (b) the Fair Market Value of the Common Stock
     as of the Closing Date.

          "Common Stock" shall mean the Common Stock, par value $0.001 per
     share, of Exchange.

          "control" (including, with its correlative meanings, "controlled by"
     and "under common control with") shall mean possession, directly or
     indirectly, of power to direct or cause the direction of management or
     policies (whether through ownership of securities or partnership or other
     ownership interests, by contract or otherwise).

          "Designee" shall mean any wholly-owned subsidiary of MicroStrategy
     designated in writing by MicroStrategy as the recipient and registered
     holder of any or all of the Payment Shares to be issued under Article II.

          "Development Agreement" shall mean the Software Development and OEM
     Agreement, dated as of the Closing Date, by and between MicroStrategy and
     Exchange. The final form of the Development Agreement is attached hereto as
     Exhibit A.

          "dollars" or "$" shall mean lawful money of the United States of
     America.
<PAGE>

                                      -3-

          "Exchange Act" shall mean the Securities Exchange Act of 1934.

          "Fair Market Value" means, as of any date of determination, the lowest
     closing sale price (if listed on a stock exchange or quoted on the Nasdaq
     National Market System or any successor thereto), or the lowest of the mean
     between the closing bid and asked prices (if quoted on NASDAQ or otherwise
     publicly traded), of the Common Stock during the period commencing on the
     third trading day prior to (and including) such date and ending on the
     third trading day after such date.

          "Governmental Authority" shall mean any court, administrative agency
     or commission or other governmental agency or instrumentality, domestic or
     foreign, or any arbitrator, of competent Jurisdiction.

          "Group" shall mean a "Group" within the meaning of Section 13(d)(3) of
     the Exchange Act.

          "Installment Share Amount" shall mean, with respect to any Installment
     for which Exchange has elected in accordance with Section 2.02(b) to pay
     all or any portion of the Payment Amount in Common Stock, the number of
     shares of Common Stock (rounded to the nearest whole number) equal to the
     result obtained by dividing (a) the Payment Amount to be paid on the
     applicable Installment Date minus the Cash Component set forth in the
     applicable Stock Election Notice by  (b) the Fair Market Value of the
     Common Stock as of the originally scheduled Installment Date set forth in
     the table contained in Section 2.01(c); provided, however, that for
     purposes of this definition, in no event shall the "Fair Market Value" as
     at any date be less than 75% of the Fair Market Value determined as of the
     Closing Date or exceed 125% of the Fair Market Value determined as of the
     Closing Date.

          "Marketing Agreement" shall mean the Joint Marketing Agreement, dated
     as of the Closing Date, by and between MicroStrategy and Exchange.  The
     final form of the Marketing Agreement is attached hereto as Exhibit B.

          "MicroStrategy License Agreement" shall mean the License Agreement,
     dated as of the Closing Date, by and between MicroStrategy and Exchange.
     The final form of the MicroStrategy License Agreement is attached hereto as
     Exhibit C.

          "Milestones" shall mean, at any time of determination, the milestones
     for the Business Unit in effect at such time.  On the Closing Date, the
     Milestones shall be set forth on Exhibit A to the Development Agreement,
     and thereafter, may be established or modified from time to time by the
     Steering Committee.

          "Operative Agreements" shall mean this Agreement, the Development
     Agreement, the Marketing Agreement, the MicroStrategy License Agreement and
     the Strategy.com Agreement.

          "Payment Shares" shall mean all shares of Common Stock issued to
     MicroStrategy under Article II.
<PAGE>

                                      -4-

          "Person" shall mean any individual, firm, corporation, partnership,
     Group trust, joint venture, Governmental Authority or other entity, and
     shall include any successor (by merger or otherwise) of such entity.

          "Registration Shares" shall mean (i) all Payment Shares issued to
     MicroStrategy or a Designee and (ii) all securities issued or issuable to
     MicroStrategy or a Designee in respect thereof by way of stock dividend,
     stock split or reclassification or in connection with a combination of
     shares, recapitalization, merger or, consolidation or other reorganization
     or otherwise.

          "Registration Statement" shall mean, as applicable, the Shelf
     Registration Statement or a registration statement filed with the SEC in
     connection with a Piggyback Registration.

          "Registration Termination Date" means, with respect to any
     Registration Statement, the earlier of (i) the date when all of the
     Registration Shares registered thereunder shall have been sold or (ii) the
     third anniversary of the Closing Date; provided however, that in the event
     that the right of MicroStrategy or any Designee to use such Registration
     Statement (and the prospectus relating thereto) is delayed or suspended
     pursuant to Section 5.07 or 5.09, Exchange shall be required to extend the
     Registration Termination Date beyond the third anniversary of the Closing
     Date by the same number of days as such delay or Suspension Period.

          "SEC" shall mean the Securities and Exchange Commission or any
     successor commission or agency having similar powers.

          "Securities Act" shall mean the Securities Act of 1933.

          "Shelf Registration" shall mean the registration of Registration
     Shares pursuant to the Shelf Registration Statement.

          "Steering Committee" shall have the meaning set forth in the
     Development Agreement.

          "Strategy.com Agreement" shall mean the Strategy.com Affiliate
     Agreement, dated as of the Closing Date, by and between MicroStrategy and
     Exchange.  The final form of the Strategy.com Agreement is attached hereto
     as Exhibit D.

          "Transactions" shall mean the transactions contemplated by the
     Operative Agreements.

     "Transfer" shall mean to sell, transfer or assign.
<PAGE>

                                      -5-



          Section 1. 02. Additional Definitions.

                Defined Term                                 Section Defined in
                ------------                                 ------------------
                Accelerated Installment Date                       2.03(c)
                Closing Payment                                    2.01(a)
                Cash Component                                     2.02(b)
                Election Date                                      2.02(b)
                Extension Date                                     2.03(b)
                Installment Dates                                  2.01(c)
                Installments                                       2.01(c)
                Payment Amounts                                    2.01(c)
                Piggyback Registration                             5.02(a)
                Preferred Stock                                    3.01(c)
                Registered Sale                                    4.01
                Sale                                               4.01
                SEC Documents                                      3. 01(e)
                Securities                                         3.01(c)
                Shelf Registration Statement                       5.01(a)
                Stock Election Notice                              2.02(b)
                Suspension Period                                  5.09
                Unachieved Milestones                              2.03(b)


          Section 1.03. Terms Generally. The definitions in Sections 1.01 and
     1.02 shall apply equally to both the singular and plural forms of the terms
     defined.  Whenever the context may require, any pronoun shall include the
     corresponding masculine, feminine and, neuter forms.  The words "include",
     "includes" and "including" shall be deemed to be followed by the phrase
     "without limitation". All references herein to Articles, Sections, Exhibits
     and Schedules shall be deemed references to Articles and Sections of, and
     Exhibits and Schedules to, this Agreement unless the context shall
     otherwise require.  The headings of the Articles and Sections are inserted
     for convenience of reference only and are not intended to be a part of or
     to affect the meaning or interpretation of this Agreement. Unless the
     context shall otherwise require, any reference to any agreement or other
     instrument or statute or regulation are to it as amended and supplemented
     from time to time (and, in the case of a statute or regulation, to any
     successor provision).  Any reference in this Agreement to a "day" or a
     number of "days" (without the explicit qualification of "Business') shall
     be interpreted as a reference to a calendar day or number of calendar days.
     If any action or notice is to be taken or given on or by a particular
     calendar day, and such calendar day is not a Business Day, then such action
     or notice shall be deferred until, or may be taken or given on, the next
     Business Day.
<PAGE>

                                      -6-

                                  ARTICLE 11.

                        Payments and Issuance of Shares
                        -------------------------------

          Section 2.01. Payments and Issuance of Shares.  In reliance upon the
     representations, warranties and agreements of MicroStrategy set forth in
     the Operative Agreements, and upon the terms and conditions set forth
     herein, in consideration for the rights, services, interests and benefits
     received or to be received by Exchange under the Development Agreement, the
     Marketing Agreement, the MicroStrategy License Agreement and the
     Strategy.com Agreement during the initial terms thereof.

               (a) At the Closing, Exchange shall pay MicroStrategy the sum of
    $10,000,000 (the  "Closing Payment").

               (b) On or before January 20, 2000, Exchange shall issue to
     MicroStrategy or a Designee the number of shares of Common Stock equal to
     the Closing Share Amount.  Exchange shall prepare and deliver to
     MicroStrategy on or prior to January 14, 2000 a certificate setting forth
     its calculation of the Closing Share Amount, which certificate shall be
     conclusive absent manifest error.

               (c) Subject to Section 2.03, Exchange shall pay to MicroStrategy
     on the dates set forth below (the "Installment Dates") the amounts (the
     "Payment Amounts") set forth opposite such dates (the "Installments"):

               Installment Dates        Payment Amounts
               -----------------        ---------------

               June 30, 2000            $ 5,833,333
               September 1, 2000        $ 5,833,333
               December 1, 2000         $ 5,833,333
               March 1, 2001            $ 5,833,333
               June 1, 2001             $ 5,833,333
               September 1, 2001        $ 5,833,335;

     provided, however, that if Exchange has elected in accordance with Section
     2.02(b) to pay all or any portion of the Payment Amount due on any
     Installment Date in Common Stock, the relevant Installment Date shall be
     extended until the tenth Business Day immediately following the date set
     forth above.  If Exchange has elected to pay all or any portion of any
     Payment Amount in Common Stock, Exchange shall prepare and deliver to
     MicroStrategy on the third Business Day prior to the Installment Date (as
     so extended) a certificate setting forth its calculation of the Installment
     Share Amount, which certificate shall be conclusive absent manifest error.

     (d) Payments under Section 2.01(a) or (b) are non-cancelable and, once
     made, are non-refundable.  Payments made under Section 2.01(c) are non-
     refundable.

          Section 2.02. Payment in Common Stock; Stock Election Notice. (a) If
     Exchange elects in accordance with Section 2.02(b) to pay all or any
     portion of the Payment Amount for any Installment Date in Common Stock, the
<PAGE>

                                      -7-
     number of shares of Common Stock to be issued to MicroStrategy or a
     Designee on such Installment Date shall be the Installment Share Amount
     determined as of the Installment Date.

          (b) On or before the fifteenth day prior to Installment Date set forth
     in the table contained in Section 2.01(c) (such fifteenth day being the
     "Election Date"), Exchange may by written notice to MicroStrategy (each, a
     "Stock Election Notice") elect to pay all or any portion of the Payment
     Amount payable in respect of the Installment in Common Stock. Each Stock
     Election Notice shall indicate the portion of the Payment Amount in respect
     of such Installment to be paid in cash (the "Cash Component"), and shall be
     irrevocable.  If Exchange does not deliver a Stock Election Notice to
     MicroStrategy on or before the Election Date for any Installment, then the
     entire Payment Amount shall be paid in cash on the applicable Installment
     Date set forth in the table contained in Section 2.01(c).

          Section 2.03. Termination of Installment Obligations; Extension of
     Installment Dates.  Anything to the contrary notwithstanding:

          (a) If either Exchange or MicroStrategy delivers a notice of
     termination in accordance with Section 10.3 of the Development Agreement or
     Exchange delivers a notice of termination in accordance with Section 10.1
     of the Development Agreement, the obligations of Exchange to pay any and
     all Installments not yet due and payable at the time of such notice of
     termination shall automatically terminate. If either Exchange or
     MicroStrategy terminates the Development Agreement in accordance with
     Section 11.4 of the Development Agreement, the obligations of Exchange to
     pay any and all Installments not yet due and payable at the time of
     delivery of the written notice of default giving rise to such termination
     shall automatically terminate.

          (b)  If any of the Milestones for a particular Installment Date have
     not been achieved by the Business Unit (the "Unachieved Milestones") on or
     prior to that Installment Date with respect to any Installment payable
     after June 30, 2000, Exchange may elect by written notice to MicroStrategy
     on or before the Installment Date to extend the applicable Installment Date
     until the earlier (i) the 45th day immediately following the scheduled
     Installment Date contained in the table set forth in Section 2.01(c) and
     (ii) the third Business Day following the achievement of the Unachieved
     Milestones.  If at the end of the 45 day period described in this Section
     2.03(b) (the "Extension Date"), the Business Unit has not achieved the
     Milestone, then Exchange shall either (a) pay the Payment Amount by the
     third Business Day following the Extension Date or (b) terminate the
     Business Unit obligations pursuant to Section 1 0. 1 of the Development
     Agreement.

          (c) If the Business Unit achieves a Milestone for a particular
     Installment Date prior to such Installment Date, then MicroStrategy may
     elect by written notice to Exchange to accelerate the applicable
     Installment Date to the 20th Business Day following such notice (the
     "Accelerated Installment Date").  The Accelerated Installment Date shall be
     deemed an Installment Date for the purposes of Section 2.02 above.
<PAGE>

                                      -8-


          Section 2.04. Payments: Delivery of Shares. (a) On each date on which
     Exchange is obligated to make a payment of cash to MicroStrategy under this
     Article II, Exchange shall deliver to MicroStrategy the applicable sum by
     check or by wire transfer to a bank account designated in writing by
     MicroStrategy.

          (b) On each date on which Exchange is obligated to deliver shares of
     Common Stock to MicroStrategy or a Designee under this Article II, Exchange
     shall deliver to MicroStrategy a certificate representing the applicable
     number of shares of Common Stock registered in the name of MicroStrategy or
     such Designee.

          Section 2.05. Designees. Each reference to MicroStrategy in Section
     3.02, Article IV and Article V shall be deemed a reference to MicroStrategy
     and, where applicable, each of its Designees.

                                  ARTICLE III.

                         Representations and Warranties
                         ------------------------------

          Section 3.01. Representations and Warranties of Exchange. Exchange
    hereby represents and warrants to MicroStrategy on and as of the Closing
    Date as follows:

         (a) Organization. Exchange is a corporation duly organized, validly
     existing and in good standing under the laws of the State of Delaware and
     is qualified to do business in each Jurisdiction in which the character of
     its properties or the nature of its business requires such qualification,
     except where the failure to so qualify would not have a material adverse
     effect upon Exchange.

         (b) Authorization. All corporate action on the part of Exchange, its
     officers, directors and stockholders, necessary for the authorization,
     execution, delivery and performance of this Agreement and the other
     Operative Agreements and the consummation of the transactions contemplated
     herein and therein has been taken. Each of this Agreement and the other
     Operative Agreements constitute the legal, valid and binding obligation of
     Exchange, enforceable against Exchange in accordance with its terms, except
     as such may be limited by bankruptcy, insolvency, reorganization or other
     laws affecting creditors' rights generally and by general equitable
     principles. Exchange has all requisite corporate power to enter into this
     Agreement and the other Operative Agreements and to carry out and perform
     its obligations under this Agreement and the other Operative Agreements.

         (c) Capitalization. The authorized capital stock of Exchange
     consists of (i) 30,000,000 shares of Common Stock and (ii) 10,000,000
     shares of preferred stock, par value $.001 per share (the "Preferred
     Stock"). The number of outstanding shares of each class of capital stock
     are set forth in Schedule 3.01(c) hereto. Except as set forth in Schedule
     3.01(c) hereto, there are no existing options, warrants, calls, preemptive
     (or similar) rights, subscriptions or other rights, agreements,
     arrangements or commitments of any character obligating Exchange to issue,
     transfer or sell, or cause to be issued, transferred or sold, any shares of
<PAGE>

                                      -9-


     capital stock of Exchange or other equity interests in Exchange or any
     securities convertible into or exchangeable for such shares of capital
     stock or other equity interests (collectively, "Securities"). Schedule
     3.01(c) sets forth the number of stock options outstanding under Exchange's
     stock incentive plans, and the number of shares reserved for issuance under
     such plans that are not subject to outstanding options. Except as set forth
     in Schedule 3. 01(c), no holder of any capital stock or Securities of
     Exchange has any outstanding registration rights.

          (d) Valid Issuance of the Payment Share. The Payment Shares to be
     issued to MicroStrategy or any Designee hereunder, upon issuance pursuant
     to the terms hereof, will be duly authorized and validly issued, fully
     paid, nonassessable and free of any liens or encumbrances created by
     Exchange and, assuming the accuracy of the representations and warranties
     made by MicroStrategy to Exchange, will be issued and sold by Exchange to
     MicroStrategy or such Designee in compliance with applicable state and
     federal securities laws.

          (e) SEC Documents. Exchange has furnished to MicroStrategy (or
     otherwise provided access by MicroStrategy to) true and complete copies of
     the documents filed by Exchange with the SEC and set forth on Schedule
     3.01(e) hereto (all such documents, collectively, the "SEC Documents"). As
     of their respective filing dates, the SEC Documents complied in all
     material respects with the requirements of the Exchange Act or the
     Securities Act, as applicable, and none of the SEC Documents contained any
     untrue statement of a material fact or omitted to state a material fact
     required to be stated therein or necessary in order to make the statements
     made therein, in light of the circumstances under which they were made, not
     misleading, as of their respective filing dates, except to the extent
     corrected by a subsequently filed SEC Document.

         (f) No Conflict. The execution and delivery of this Agreement and the
     other Operative Agreements by Exchange and the consummation of the
     transactions contemplated hereby and thereby will not conflict with or
     result in any violation of or default (with or without notice or lapse of
     time, or both) under, or give rise to a right of termination, cancellation
     or acceleration of any obligation or to a loss of a material benefit or
     give rise to an event which results in the creation of any lien, charge or
     encumbrance upon any of Exchange's properties or assets under (i) any
     provision of the Certificate of Incorporation or By-laws of Exchange or
     (ii) any agreement or instrument, permit, franchise, license, judgment,
     order, statute, law, ordinance, rule or regulation, applicable to Exchange
     or its respective properties or assets, except where any such event under
     clause (ii) could not reasonably be expected to have a material adverse
     effect on the Transactions contemplated by this Agreement and the other
     Operative Agreements.

          (g) Consents. All consents, approvals, orders, authorizations,
     registrations, qualifications, and filings required on the part of Exchange
     to be obtained or made prior to the Closing in connection with the
     execution, delivery or performance of this Agreement and the other
     Operative Agreements, and the consummation of the transactions contemplated
     herein and therein have been obtained or made prior to the Closing.

          (h) Absence of Certain Changes or Events. Since the last filing date
     of the SEC Documents, no event has occurred that has had a material adverse
     effect on Exchange (excluding for this purpose the execution or
     announcement of the transactions contemplated by this Agreement and the
     other Operative Agreements and any adverse effect resulting therefrom).
<PAGE>

                                      -10-

          Section  3.02.   Representations   and  Warranties  of  MicroStrategy.
     MicroStrategy  hereby  represents and warrants to Exchange on and as of the
     Closing Date as follows:

          (a)  Organization.  MicroStrategy  is a  corporation  duly  organized,
     validly  existing  and in good  standing  under  the  laws of the  State of
     Delaware and is qualified to do business in each jurisdiction in which the
     character of its  properties  or the nature of its business  requires  such
     qualification,  except  where the  failure to so  qualify  would not have a
     material adverse effect upon MicroStrategy.

          (b) Authorization.  All corporate action on the part of MicroStrategy,
     its officers, directors and stockholders,  necessary for the authorization,
     execution,  delivery  and  performance  of this  Agreement  and  the  other
     Operative Agreements and the consummation of the transactions  contemplated
     herein and  therein has been taken.  Each of this  Agreement  and the other
     Operative Agreements  constitute the legal, valid and binding obligation of
     MicroStrategy,  enforceable  against  MicroStrategy  in accordance with its
     terms,   except  as  such  may  be  limited  by   bankruptcy,   insolvency,
     reorganization  or other laws affecting  creditors' rights generally and by
     general equitable  principles.  MicroStrategy  has all requisite  corporate
     power to enter into this Agreement and the other  Operative  Agreements and
     to carry out and perform its obligations under this Agreement and the other
     Operative Agreements.

          (c) Acquisition Solely for the Purpose of Investment. MicroStrategy is
     acquiring  the  Payment  Shares  being   acquired  by  it  hereunder,   for
     investment,  for its own  account,  and  not for  resale  or with a view to
     distribution  thereof  in  violation  of the  Securities  Act or any  other
     applicable securities law.  MicroStrategy has no intention of participating
     in,  and,  so long as  MicroStrategy  holds or has any right to acquire any
     Payment Shares  MicroStrategy  will not  participate  in, the  formulation,
     determination  or  direction  of the basic  business  decisions of Exchange
     within the meaning of 16 C.F.R. 801.1(i)(1).

          (d) Investor Status,  etc.  MicroStrategy  certifies and represents to
     Exchange  that,  at the  time  MicroStrategy  acquires  any of the  Payment
     Shares,  MicroStrategy will be an "accredited  investor" as defined in Rule
     501 of Regulation D promulgated  under the Securities Act.  MicroStrategy's
     financial condition is such that it is able to bear the risk of holding any
     and all of the Payment  Shares  acquired by it for an indefinite  period of
     time and the risk of loss of its entire investment.  MicroStrategy has been
     afforded the  opportunity to ask questions of and receive  answers from the
     management  of  Exchange  concerning  Exchange  and its  business  and this
     investment,  and has also been  afforded  the  opportunity  to  review  any
     relevant  documents  and  records  concerning  the  business  of  Exchange.
     MicroStrategy  has such  knowledge and experience in financial and business
     matters  that it is  capable  of  evaluating  the  merits  and  risks of an
     investment in Exchange.

          (e) Payment  Shares Not  Registered.  MicroStrategy  understands  that
     because the Payment  Shares are issued by Exchange in a transaction  exempt
     from the  registration  requirements  of the  Securities  Act,  the Payment
     Shares have not been  registered  under the  Securities  Act, and that the
     Payment  Shares  must  continue  to  be  held  by  MicroStrategy  unless  a
     subsequent disposition thereof is registered under the Securities Act or is
     exempt from such registration. MicroStrategy understands that the
<PAGE>

                                      -11-

     exemptions from registration afforded by Rule 144 (the provisions of which
     are known to it) promulgated under the Securities Act depend on the
     satisfaction of various conditions, and that, if applicable, Rule 144 may
     afford the basis for sales only in limited amounts.

          (f) No Conflict.  The execution and delivery of this Agreement and the
     other Operative  Agreements by  MicroStrategy  and the  consummation of the
     transactions  contemplated  hereby and thereby  will not  conflict  with or
     result in any violation of or default  (with or without  notice or lapse of
     time, or both) under, or give rise to a right of termination,  cancellation
     or acceleration of any obligation or to a loss of a material  benefit under
     (i)  any  provision  of the  Certificate  of  Incorporation  or  Bylaws  of
     MicroStrategy  or (ii) any  agreement  or  instrument,  permit,  franchise,
     license,  judgment,  order,  statute,  law, ordinance,  rule or regulation,
     applicable to MicroStrategy or its respective  properties or assets, except
     where any such event under clause (ii) could not  reasonably be expected to
     have a material  adverse effect on the  Transactions  contemplated  by this
     Agreement and the other Operative Agreements.

          (g)  Consents.  All  consents,   approvals,  orders,   authorizations,
     registrations   qualifications   and  filings   required  on  the  part  of
     MicroStrategy  to be obtained  or made prior to the  Closing in  connection
     with the execution, delivery or performance of this Agreement and the other
     Operative Agreements and the consummation of the Transactions  contemplated
     herein or therein have been obtained or made prior to the Closing.

          (h)  Certain   Acknowledgements.   MicroStrategy   has   reviewed  and
     understands  the SEC  Documents,  including  the "Risk  Factors"  set forth
     therein,  and  acknowledges  that Exchange has made no  representations  or
     warranties  to  MicroStrategy  to induce  MicroStrategy  to enter  into the
     Transactions, except for those set forth herein (or, in the case of the SEC
     Documents,  incorporated  herein by reference)  and in the other  Operative
     Agreements. MicroStrategy acknowledges that investments in the Common Stock
     are  risky,  that the  market  price of the Common  Stock is  volatile  and
     subject  to a variety  of  factors,  many of which are  outside  Exchange's
     control,  and that no assurances  can be or are given by Exchange or any of
     its officers or directors as to the market price at which MicroStrategy may
     be able to sell the Payment Shares.


                                   ARTICLE IV.
                                   -----------
                                 Other Covenants
                                 ---------------

          Section  4.01.   Restrictions  on  Transfer  of  the  Payment  Shares.
     MicroStrategy  shall not offer, sell, assign,  transfer,  endorse,  pledge,
     mortgage,  hypothecate or otherwise  convey or dispose of (a "Sale") any of
     the Payment Shares acquired by it, or any interest therein,  unless (i) any
     such sale shall be  effected  (A)  pursuant  to and in  conformity  with an
     effective  registration  statement  under the Securities Act (a "Registered
     Sale"),  or (B)  pursuant  to and in  conformity  with  Rule 144  under the
     Securities  Act,  and (ii) in the case of any Sale under such Rule 144,  if
     requested by Exchange,  MicroStrategy  shall have obtained and delivered to
     Exchange a written legal  opinion of counsel  (reasonably  satisfactory  to
     Exchange as to such counsel and as to the substance of such opinion) to the
     effect that any such  proposed Sale by  MicroStrategy  does not violate the
     registration  provisions of the  Securities  Act and any  applicable  state
     securities or blue sky laws.
<PAGE>

                                      -12-

          Section 4.02. Effect of Violation of Transfer Restrictions; Preventive
     Measures.  Any Sale of any Payment Shares, or of any interest  therein,  'n
     violation  of this  Article IV shall be null and void.  Exchange may make a
     notation on its records or give  instructions to any of its transfer agents
     in order to  implement  the  restrictions  on  transfer  set  forth in this
     Article  IV.  Exchange  shall  not  incur  any  liability  for any delay in
     recognizing  any transfer of any  Purchased  Shares if Exchange  reasonably
     believes that any such transfer may have been or would be in,  violation of
     the  provisions of the  Securities  Act,  applicable  blue sky laws or this
     Article IV.

          Section 4.03.  Legends.  (a) Each  certificate  evidencing  any of the
     Payment  Shares  shall be  endorsed  with the legend set forth  below,  and
     MicroStrategy  covenants that,  except to the extent such  restrictions are
     waived by Exchange, it shall not transfer the Payment Shares represented by
     any such  certificate  without  complying with the restrictions on transfer
     described in this Agreement and the legends endorsed on such certificate:

          "THE SHARES  REPRESENTED BY THIS  CERTIFICATE HAVE NOT BEEN REGISTERED
          UNDER THE SECURITIES ACT OF 1933, AS AMENDED,  OR THE SECURITIES  LAWS
          OF ANY  STATE AND MAY NOT BE  OFFERED,  SOLD,  ASSIGNED,  TRANSFERRED,
          ENDORSED,  PLEDGED,  MORTGAGED,  HYPOTHECATED OR OTHERWISE CONVEYED OR
          DISPOSED  OF,  UNLESS  SUCH  SHARES  ARE (1) SO  REGISTERED  OR (2) AN
          EXEMPTION  FROM SUCH  REGISTRATION  IS AVAILABLE  AND, IF REQUESTED BY
          EXCHANGE APPLICATIONS,  INC. (THE "COMPANY"),  A WRITTEN LEGAL OPINION
          OF COUNSEL  REASONABLY  SATISFACTORY TO THE COMPANY IS PROVIDED BY THE
          TRANSFEROR.  IF THE SHARES  REPRESENTED  BY THIS  CERTIFICATE  ARE NOT
          TRANSFERRED   PURSUANT  TO  AND  IN   CONFORMITY   WITH  AN  EFFECTIVE
          REGISTRATION  STATEMENT  UNDER  THE  SECURITIES  ACT  OF  1933  OR  IN
          ACCORDANCE  WITH RULE 144 OF THE SECURITIES  ACT OF 1933,  SUCH SHARES
          ARE ALSO  SUBJECT TO CERTAIN  RESTRICTIONS  ON  TRANSFER  SET FORTH IN
          ARTICLE IV OF A PAYMENT AND REGISTRATION  RIGHTS AGREEMENT DATED AS OF
          DECEMBER  28,  1999,  AND NO TRANSFER OF SUCH SHARES SHALL BE VALID OR
          EFFECTIVE  IF IT IS NOT  EFFECTED  IN  COMPLIANCE  WITH  ALL  OF  SUCH
          RESTRICTIONS  ON  TRANSFER.  A COPY OF SUCH  PAYMENT AND  REGISTRATION
          RIGHTS AGREEMENT MAY BE OBTAINED AT NO COST BY WRITTEN REQUEST MADE BY
          THE HOLDER OF RECORD OF SUCH SHARES TO THE SECRETARY OF THE COMPANY."

               (b)    Each certificate evidencing any of the Payment Shares
shall be  endorsed with any legend required under any applicable state
securities or blue sky laws.
<PAGE>

                                   ARTICLE V.

                               Registration Rights
                               -------------------

          Section 5. 01. Shelf Registration.  (a) As soon as possible and, in
     any event, on or prior to January 31, 2000, Exchange will prepare and file
     with the SEC a registration statement on Form S-3 (or Form S-1 if
     registration on Form S-3 is not available to Exchange at such time) for the
     purpose of registering under the Securities Act all of the Registration
     Shares for resale by, and for the account of, MicroStrategy as selling
     stockholder thereunder (the "Shelf Registration Statement"); provided,
     however, that Exchange may extend the period to file the Shelf Registration
     Statement for not more titan an additional 60 days if (i) such delay would
     relieve Exchange of the obligation to include any interim financial
     statements in the Registration Statement or (ii) Exchange would be required
     to disclose in the Registration Statement any material nonpublic
     information and Exchange concludes that the disclosure of such information
     would be inadvisable at that time.  The Shelf Registration Statement shall
     permit MicroStrategy to offer and sell, on a delayed or continuous basis
     pursuant to Rule 415 under the Securities Act, any or all of the
     Registration Shares for the periods set forth herein.

          (b) The initial number of Registration Shares to be registered under
     the Shelf Registration Statement shall equal 50% of the Closing Share
     Amount.  Exchange agrees to prepare and file such amendments and
     supplements to the Shelf Registration Statement to increase the number of
     Registration Shares eligible to be sold thereunder by an amount equal to
     the balance of the Closing Share Amount on or before May 1, 2000.  Exchange
     also agrees to prepare and file such amendments and supplements to the
     Shelf Registration Statement as may be necessary so that at any time after
     May 1, 2000 the Shelf Registration Statement will cover the Payment Shares
     already issued to MicroStrategy (unless such shares have been sold under
     the Shelf Registration Statement or sold in connection with a Piggyback
     Registration) and the Installment Share Amount for the next Installment
     (assuming that such Installment will be paid entirely in Common Stock and
     that the Fair Market Value on such Installment Date will equal 75% of the
     Fair Market Value calculated as of the Closing Date).

          (c) Sales of the Registrable Shares pursuant to the Shelf Registration
     Statement shall not be underwritten.

          Section 5.02. Piggyback Registrations.  (a) If Exchange proposes to
     register any Common Stock under the Securities Act for sale for cash in an
     underwritten offering, Exchange shall give MicroStrategy notice of such
     proposed registration (a "Piggyback Registration") at least 30 days prior
     to the filing of the registration statement.  At the written request of
     MicroStrategy delivered to Exchange within 10 days after the receipt of the
     notice from Exchange, which request shall state the number of Registration
     Shares that MicroStrategy wishes to sell under the registration statement
     proposed to be filed by Exchange, Exchange will use reasonable efforts to
     include in such underwritten registration the Registration Shares requested
     to be included by MicroStrategy.
<PAGE>



                                      -14-

          (b) If the managing underwriters of a Piggyback Registration advise
     Exchange in writing that in their opinion the number of securities
     requested to be included in the registration exceeds the number which can
     be sold in the offering, Exchange may exclude from the registration any or
     all Registration Shares that MicroStrategy proposes to sell; provided,
     however, that no Registration Shares may be excluded if the registration
     includes Common Stock of holders other than MicroStrategy unless
     MicroStrategy is permitted to participate in such registration with such
     holders on pro rata basis.

          (c) All necessary amendments to the Shelf Registration Statement will
     be made to reduce the number of shares to be sold by MicroStrategy
     thereunder, in the event that shares are sold by MicroStrategy in a
     Piggyback Registration.

          Section 5.03. Indemnification by Exchange. In the event of any
     registration of any Registration Shares of MicroStrategy under the
     Securities Act, Exchange shall, and hereby does, indemnify and hold
     harmless MicroStrategy, its directors and officers, each other Person who
     participates as an underwriter in the offering or sale of such Registration
     Shares and each other Person, if any, who controls such party or any such
     underwriter within the meaning of Section 15 of the Securities Act against
     any losses, claims, damages or liabilities, joint or several, to which such
     party or any such director or officer or underwriter or controlling Person
     may become subject under the Securities Act or otherwise, insofar as such
     losses, claims, damages or liabilities (or actions or proceedings, whether
     commenced or threatened, in respect thereof) arise out of or are based
     upon any untrue statement or alleged untrue statement of any material fact
     contained in any registration statement under which the Registration Shares
     were registered under the Securities Act, any preliminary prospectus, final
     prospectus or summary prospectus contained therein, or any amendment or
     supplement thereto, or any omission or alleged omission to state therein a
     material fact required to be stated therein or necessary to make the
     statements therein in light of the circumstances in which they were made
     not misleading, and Exchange shall reimburse such party and each such
     director, officer, underwriter and controlling Person for any legal or any
     other expenses reasonably incurred by them in connection with investigating
     or defending any such loss, claim, liability, action or proceeding;
     provided, however, that Exchange shall not be liable in any such case to
     the extent that any such loss, claim, damage, liability (or action or
     proceeding in respect thereof) or expense arises out of or is based upon an
     untrue statement or alleged untrue statement or omission or alleged
     omission made in such registration statement, preliminary prospectus, final
     prospectus, summary prospectus, amendment or supplement in reliance upon
     and in conformity with written information about such party as a
     stockholder of Exchange furnished to Exchange through an instrument duly
     executed by such party specifically stating it is for use in the
     preparation thereof. Such indemnity shall remain in full force and affect
     regardless of any investigation made by or on behalf of such party or any
     such director, officer, controlling Person or underwriter and shall survive
     any transfer of the Registration Shares.

<PAGE>

                                      -15-


          Section 5.04. Indemnification by MicroStrategy.  Exchange may require,
     as a condition to including any Registration Shares of MicroStrategy in any
     registration statement filed pursuant to Section 5. 01 or 5.02, that
     Exchange shall have received an undertaking satisfactory to it from
     MicroStrategy to indemnify and hold harmless (in the same manner and to the
     same extent as set forth in Section 5.03) Exchange, each director of
     Exchange, each officer of Exchange signing such Registration Statement,
     each Person who participates as an underwriter in the offering or sale of
     such Registration Shares and each other Person, if any, who controls
     Exchange or any such underwriter within the meaning of Section 15 of the
     Securities Act with respect to any untrue statement or alleged untrue
     statement in or omission or alleged omission from such registration
     statement, any preliminary prospectus, final prospectus or summary
     prospectus contained therein or any amendment or supplement thereto, if
     such untrue statement or alleged untrue statement or omission or alleged
     omission was made in reliance upon and in conformity with written
     information about MicroStrategy furnished to Exchange through an instrument
     duly executed by MicroStrategy specifically stating that it is for use in
     the preparation of such registration statement, preliminary prospectus,
     final prospectus, summary prospectus, amendment or supplement; provided,
     however, that the liabilities of MicroStrategy hereunder shall be limited
     to an amount equal the net proceeds to MicroStrategy and its permitted
     assignees from the Registration Shares sold in connection with any such
     registration statement.  Such indemnity shall remain in full force and
     effect, regardless of any investigation made by or an behalf of Exchange or
     any such director, officer or controlling Person and shall survive the
     Transfer by MicroStrategy of the Registration Shares being registered.

          Section 5.05. Notices of Claims, etc. Promptly after receipt by an
     indemnified party of notice of the commencement of any action or proceeding
     involving a claim referred to in Section 5.03 or 5.04, such indemnified
     party will, if a claim in respect thereof is to be made against an
     indemnifying party, give notice to the latter of the commencement of such
     action; provided, however, that the failure of any indemnified party to
     give notice as provided herein shall not relieve the indemnifying party of
     its obligations under Section 5.03 or 5.04, except to the extent that the
     indemnifying party is actually prejudiced by such failure to give notice.
     In case any such action is brought against an indemnified party, unless in
     such indemnified party's reasonable judgment a conflict of interest between
     such indemnified and indemnifying parties may exist or the indemnified
     party may have defenses not available to the indemnifying party in respect
     of such claim, the indemnifying party shall be entitled to participate in
     and to assume the defense thereof, with counsel reasonably satisfactory to
     such indemnified party, and after notice from the indemnifying party to
     such indemnified party of its election so to assume the defense thereof,
     the indemnifying party shall not be liable to such indemnified party for
     any legal or other expenses subsequently incurred by the latter in
     connection with the defense thereof other than reasonable costs of
     investigation. No indemnifying party shall be liable for any settlement of
     any action or proceeding effected without its written consent. No
     indemnifying party shall, without the consent of the indemnified party,
     consent to entry of any judgment or enter into any settlement which does
     not include as an unconditional term thereof the giving by the claimant or
     plaintiff to such indemnified party of a release from all liability in
     respect to such claim or litigation.

          Section 5. 06. Indemnification Payments. The indemnification required
     by this Article shall be made by periodic payments of the amount thereof
     during the course of the investigation or defense, as and when bills are
     received or expense, loss, damage or liability is incurred.

<PAGE>

                                      -16-

              Section 5.07. Registration Covenants of Exchange. In the event
     that any Registration Shares are to be registered pursuant to Section 5.01
     or 5.02, Exchange covenants and agrees that it shall use its best efforts
     to effect the registration and cooperate in the sale of the Registration
     Shares to be registered and shall as expeditiously as possible:

               (i) notify MicroStrategy, promptly after Exchange shall receive
     notice thereof, of the time when the Registration Statement becomes
     effective or when any amendment or supplement or any prospectus forming a
     part of the Registration Statement has been filed;

               (ii) notify MicroStrategy promptly of any request by the SEC for
     the amending or supplementing of the Registration Statement or prospectus
     or for additional information;

               (iii) (A) advise MicroStrategy after Exchange shall receive
     notice or otherwise obtain knowledge of the issuance of any order by the
     SEC suspending the effectiveness of the Registration Statement or any
     thereto or of the initiation or threatening of any proceeding for that
     purpose and (B) promptly use reasonable efforts to prevent the issuance of
     any stop order or to obtain its withdrawal promptly if a stop order should
     be issued;

               (iv) (A) prepare and file with the SEC such amendments and
     supplements to the Registration Statement and the prospectus forming a part
     thereof as may be necessary to keep the Registration Statement effective
     until the Registration Termination Date and (B) comply with the provisions
     of the Securities Act with respect to the disposition of all Registration
     Shares covered by the Registration Statement in accordance with the
     intended methods of disposition by MicroStrategy set forth in the
     Registration Statement;

               (v) furnish to MicroStrategy such number of copies of the
     Registration Statement, each amendment and supplement thereto, the
     prospectus included in the Registration Statement (including any
     preliminary prospectus) and such other documents as MicroStrategy may
     reasonably request in order to facilitate the disposition of the
     Registration Shares owned by MicroStrategy;

               (vi) notify MicroStrategy, at any time when a prospectus relating
     thereto is required to be delivered under the Securities Act, of the
     happening of any event as a result of which the Registration Statement
     would contain an untrue statement of a material fact or omit to state any
     material fact required to be stated therein or necessary to make the
     statements therein not misleading, and, at the request of MicroStrategy,
     prepare a supplement or amendment to the Registration Statement so that the
     Registration Statement shall not, to Exchange's knowledge, contain an
     untrue statement of a material fact or omit to state any material fact
     required to be stated therein or necessary to make the statements therein
     not misleading, provided that upon such notification by Exchange,
     MicroStrategy will not offer or sell Registration Shares until Exchange has
     notified MicroStrategy that it has prepared a supplement or amendment to
     such prospectus and delivered copies of such supplement or amendment to
     MicroStrategy;
<PAGE>

                                      -17-

               (vii) if the  Registration  Shares are securities of a class then
     listed  on a  securities  exchange  or  traded  through  a  self-regulatory
     organization, cause the Registration Shares to be so listed or traded;

               (viii) provide a transfer agent and registrar, which may be a
     single entity, for all the Registration Shares not later than the effective
     date of the Registration Statement;

               (ix) use its best efforts to cause the Registration Shares
     covered by the Registration Statement to be registered with or approved by
     such other Governmental Authorities as may be necessary to enable
     MicroStrategy to consummate the disposition of such Registration Shares;
     and

               (x) otherwise use its best efforts to comply with all applicable
     rules and regulations of the SEC and timely file all reports required to be
     filed by it under the Exchange Act, and the rules and regulations adopted
     by the SEC thereunder, all to the extent required to enable MicroStrategy,
     to sell, its Payment Shares pursuant to Rule 144 and the Registration
     Statement.

          Section 5.08. Expenses. Exchange shall pay, on behalf of
     MicroStrategy, all the expenses in connection with the Shelf Registration
     or any Piggyback Registration, including all registration, filing and
     regulatory review fees, all fees and expenses of complying with securities
     or blue sky laws, all listing fees, all word processing, duplicating and
     printing expenses, all messenger and delivery expenses, the fees and
     disbursements of counsel for Exchange and of its independent public
     accountants (including the expenses of comfort letters required by or
     incident to such performance and compliance), and any fees and
     disbursements of underwriters customarily paid by issuers or sellers of
     securities, but excluding any underwriting discounts and commissions and
     transfer taxes, if any, on the Registration Shares. In any registration,
     MicroStrategy shall pay for its own underwriting discounts and commissions
     and transfer taxes, and its own legal fees.

          Section 5.09. Deferral. Notwithstanding anything in this Agreement to
     the contrary, if Exchange shall furnish to MicroStrategy a certificate
     signed by the President or Chief Financial Officer of Exchange stating that
     the Board of Directors of Exchange has made the good faith determination
     (i) that continued use by MicroStrategy of a Registration Statement for
     purposes of effecting offers or sales of Registration Shares pursuant
     thereto would require, under the Securities Act, premature disclosure in
     the Registration Statement (or the prospectus relating thereto) of
     material, nonpublic information concerning Exchange, its business or
     prospects or any proposed material transaction involving Exchange, (ii)
     that such premature disclosure would be materially adverse to Exchange, its
     business or prospects or any such proposed material transaction
     significantly less likely and (iii) that it is therefore advisable to
     suspend the use by MicroStrategy of such Registration Statement (and the
     prospectus relating thereto) for purposes of effecting offers or sales of
     Registration Shares pursuant thereto, then the right of MicroStrategy to
     use the Registration Statement (and the prospectus relating thereto) for
     purposes of effecting offers or sales of Registration Shares pursuant
     thereto shall be suspended for a period (the "Suspension Period") of not
     more than 60 days after delivery by Exchange of the certificate referred to
     above in this Section 5.09. During the Suspension Period, MicroStrategy
     shall not offer or sell any Registration Shares pursuant to or in reliance
     upon the Registration Statement (or the prospectus relating thereto).
     Notwithstanding the foregoing, Exchange shall not be entitled to Suspension
     Periods totaling more than 90 days in any consecutive twelve-month period
     during the term of this Agreement.
<PAGE>

                                      -18-

          Section 5.10. Assignment of Registration Rights. The registration
     rights set forth in this Article V may not be assigned to any Person, other
     than an affiliate of MicroStrategy.

                                  ARTICLE VI.

                                 Miscellaneous
                                 -------------

          Section 6.01. Notices.  Except as expressly provided herein, notices
     and other communications provided for herein shall be in writing and shall
     be delivered by hand or overnight courier service, mailed or sent by
     telecopier, as follows:

          (a)  if to Exchange,

               Exchange Applications, Inc.
               89 South Street
               Boston, Massachusetts 02111
               Telephone:  (617) 737-2244
               Telecopier.   (617) 790-2849
               Attention:  Andrew J. Frawley and Wayne Townsend

          (b)  if to MicroStrategy,

               MicroStrategy Incorporated
               8000 Towers Crescent Drive
               Vienna, Virginia 22182
               Telephone:  (703) 848-8657
               Telecopier:  (703) 848-8748
               Attention:  Adam J. Ruttenberg

     or to such other address or attention of such other person as any party
     shall advise the other party in writing.  All notices and other
     communications given to a party hereto in accordance with the provisions of
     this Agreement shall be deemed to have been given on the date of receipt.

          Section 6.02. APPLICABLE LAW:  WAIVER OF JURY TRIALS.  THE VALIDITY,
     CONSTRUCTION AND PERFORMANCE OF THIS AGREEMENT SHALL BE GOVERNED BY AND
     CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE COMMONWEALTH OF MASSACHUSETTS,
     APPLICABLE TO CONTRACTS EXECUTED IN AND PERFORMED ENTIRELY WITHIN SUCH
<PAGE>

                                      -19-

     COMMONWEALTH, WITHOUT REFERENCE TO ANY CHOICE OF LAW PRINCIPLES OF SUCH
     COMMONWEALTH.  WITH RESPECT TO ANY LEGAL PROCEEDING ARISING OUT OF THIS
     AGREEMENT, ANY OF THE OTHER OPERATIVE AGREEMENTS OR ANY TRANSACTION, THE
     PARTIES EXPRESSLY WAIVE ANY RIGHT THEY MAY HAVE TO A JURY TRIAL AND AGREE
     THAT ANY SUCH LEGAL PROCEEDING SHALL BE TRIED BY A JUDGE WITHOUT A JURY.

          Section 6.03. Severability. If any provision of this Agreement shall
     be hold to be illegal, invalid or unenforceable, that provision will be
     enforced to the maximum extent permissible so as to effect the intent of
     the parties, and the validity, legality and enforceability of the remaining
     provisions shall not in any way be affected or impaired thereby. If
     necessary to effect the intent of the parties, the parties will negotiate
     in good faith to amend this Agreement to replace the unenforceable language
     with enforceable language which as closely as possible reflects such
     intent.

          Section 6.04. Amendments. This Agreement may be modified or waived
     only by a written a persons authorized to so bind each party.

          Section 6.05. Waiver. The waiver by any party of any instance of the
     other party's noncompliance with any obligation or responsibility herein
     shall not be deemed a waiver of other instances or of any party's remedies
     for such noncompliance.

          Section 6.06. Counterparts. This Agreement may be executed in one or
     more counterparts (including by telecopier), all of which shall be
     considered one and the same agreement, and shall become effective when one
     or more counterparts shall have been signed by each party and delivered to
     each other party.

          Section 6.0 7. Entire Agreement. The provisions of this Agreement, and
     the other Operative Agreements set forth the entire agreement and
     understanding among the parties as to the subject matter hereof and
     supersede all prior agreements, oral or written, and all other
     communications between the parties relating to the subject matter hereof

          Section 6.08. Assignment. (a) Except as expressly set forth in this
     Agreement, no party shall assign this Agreement or any of its rights or
     obligations hereunder without the prior written consent of the other
     parties, provided, that no such consent shall be required for a transfer by
     operation of law in connection with a merger or consolidation of such party
     (without prejudice to any other rights the parties may have under any other
     Operative Agreement).

               (b) Any attempted assignment of this Agreement in violation of
     this Section shall be void and of no effect.

               (c) This Agreement shall be binding upon, inure to the benefit of
     and be enforceable by the parties hereto and their respective successors
     and permitted assigns.

          Section 6.09. Survival of Agreement.  All covenants, agreements,
     representations and warranties made by any party herein and in the
     certificates or other instruments prepared or delivered in connection with
     or pursuant to this Agreement shall be considered to have been relied upon
     by the other parties and shall survive the Closing, regardless of any
     investigation made by the other parties hereto or on their behalf.
<PAGE>

                                      -20-

          Section 6.10. No Third-Party Beneficiaries.   This Agreement is for
     the sole benefit of the parties and their permitted assigns and nothing
     herein expressed or implied shall give or be construed to give to any
     Person, other than the parties and such assigns, any legal or equitable
     rights hereunder, except that Sections 5.03 and 5.04 and are intended to be
     for the benefit of the Persons named therein

          Section 6.11. Expenses. (a) All costs and expenses incurred in
     connection with the Operative Agreements and the Transactions shall be paid
     by the party incurring such cost or expense, except as the parties shall
     otherwise agree.

          (b) The provisions of this Section shall remain  operative and in full
     force and effect  regardless  of the  expiration  of this  Agreement or the
     consummation of the Transactions.

          Section 6.12. Remedies.  In no event will any party be liable to
     another party for incidental damages, lost profits, lost savings, or any
     other consequential damages, even if such party has been advised of the
     possibility of such damages, resulting from the breach of its obligations
     under any Operative Agreement or from the use of any confidential or other
     information.

          Section 6.13. Publicity.  No public release, announcement or other
     form of publicity concerning the Transactions shall be issued by any party
     without the prior consent of the other party, except as such release or
     announcement may be required by law or the rules or regulations of any
     securities exchange, in which case the party required to make the release
     or shall, to the extent possible, allow the other party reasonable time to
     comment on such release or announcement in advance of such issuance.
<PAGE>

                                      -21-

          Section 6.14. Construction.  This Agreement has been negotiated by the
     parties and their respective counsel and will be fairly interpreted in
     accordance with its terms and without any strict construction in favor of
     or against any party.

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

                              EXCHANGE APPLICATIONS, INC.


                              By:   ILLEGIBLE
                                -------------------------
                              Name:
                              Title:


                              MICROSTRATEGYINCORPORATED


                              By: /s/ Sanju Bansal
                                 -------------------------
                                      Sanju Bansal
                              Name:
                              Title: COO
<PAGE>

                                    EXHIBIT F
                                    ---------
















                                     Page 1
<PAGE>

                           JOINT MARKETING AGREEMENT
                           -------------------------

     THIS AGREEMENT is made and entered into effective as of  December___,  1999
by  and  between  MicroStrategy  Incorporated   ("MicroStrategy"),   a  Delaware
corporation  with its principal place of business at 8000 Towers Crescent Drive,
Suite 1400, Vienna,  Virginia 22182 and Exchange  Applications,  Inc. a Delaware
corporation,     having    its     principal     place    of     business     at
___________________________________ ("Exchange Applications") (collectively, the
"Parties").

                                    RECITALS

     A.  MicroStrategy has developed certain  proprietary  computer programs and
will be developing certain CRM software with Exchange Applications.

     B.  Exchange   Applications  has  developed  certain  proprietary  computer
programs and will be jointly developing certain CRM software with MicroStrategy.

     C. The Parties  desire to enter into a  nonexclusive,  nontransferable  and
terminable  agreement  pursuant to which the parties will jointly market the CRM
products.

                                   AGREEMENT

     NOW, THEREFORE, for good and valuable consideration and in consideration of
the mutual covenants and conditions herein contained, MicroStrategy and Exchange
Applications agree as follows:

     A.      DEFINITIONS

     For the purposes of this Agreement, the terms set forth below shall be
     defined as follows:

     1. MicroStrategy Product. The term "MicroStrategy  Software" shall have the
same  meaning as is set forth in the OEM  agreement  between the  parties  dated
December 28, 1999 ("OEM Agreement").

     2. Exchange  Applications  Product.  The term "EA Products"  shall have the
same meaning as is set forth in the OEM Agreement.

     3. CRM Product.  The term "Developed  Software" shall have the same meaning
as is set forth in the OEM Agreement.

     B.  MARKETING RIGHTS AND RESPONSIBILITIES

     1.  MicroStrategy  Marketing  Obligations.  MicroStrategy will launch a CRM
co-marketing campaign, for the term of this Agreement.  MicroStrategy will spend
at least five million dollars  ($5,000,000) on this campaign.  If  MicroStrategy
fails spend the $5,000,000, such a failure shall be considered a material breach
of the agreement. It is currently contemplated that MicroStrategy's efforts will
include:

                                    Page 2
<PAGE>

          (i.)     A full media advertising campaign touting the benefits of CRM
                   and Exchange Applications abilities in this space.
          (ii.)    Creating joint product collateral for each CRM application
                   and each vertical.
          (iii.)   Launching a full analyst tour with Exchange Applications
                   promoting the partnership and the resulting Applications.
          (iv.)    Launching a complete press tour with Exchange Applications
                   with press briefings in every major city.
          (v.)     Creating a set of white papers on CRM and each vertical
                   industry.
          (vi.)    Creating a complete sales force education program.
          (vii.)   Creating a comprehensive product management programs.
          (viii.)  Promoting the partnership at a major Exchange Applications
                   Partner/User conference.
          (ix.)    Giving Exchange Applications premiere booth space at
                   MicroStrategy's annual user conference.
          (x.)     Creating an article in MicroStrategy's magazine highlighting
                   Exchange Applications and its abilities in the CRM space.
          (xi.)    Creating a dedicated CRM space on MicroStrategy's web page
                   with prominent links and information about Exchange
                   Applications.
          (xii.)   Establishing dedicated marketing contacts.
          (xiii.)  Distributing marketing literature to prospective customers in
                   such quantities and form as is reasonable.
          (xiv.)   Working with Exchange Applications to jointly drive and
                   coordinate all joint marketing and public relations
                   activities.
          (xv.)    Posting joint press releases to MicroStrategy's website.
          (xvi.)   Providing coverage (including Exchange Applications logo) in
                   MicroStrategy's newsletter.
          (xvii.)  Displaying a Exchange Applications link to Exchange
                   Applications' homepage on MicroStrategy's website.
          (xviii.) Displaying a Exchange Applications link to Exchange
                   Applications' homepage from MicroStrategy's web site search
                   engine.
          (xix.)   Coordinating customer case studies with Exchange Applications
                   if strategic joint customers exist.
          (xx.)    Such other activities to which the parties may jointly agree

     2. The parties will develop and implement a joint CRM marketing  plan on or
prior to March 31, 2000.  The parties will work  together on the  direction  and
messaging of the marketing  initiatives as well as the nature of the branding of
the  marketing  messages.  The goal of the  parties  is to make  sure  that both
parties get equal  branding in the overall  marketing  campaign.  As part of the
agreement,  MicroStrategy  will commit to spend at least $5,000,000 for this CRM
marketing campaign on or before June 30, 2001. Exchange  Applications shall have
the right to confirm  that this  $5,000,000  has been spent as  required  by the
approved  marketing plan. If the parties fail to reach agreement as to the joint
CRM marketing plan by March 31, 2000 the date by

                                    Page 3
<PAGE>

which MicroStrategy must spend the $5,000,000 will be extended by an amount of
time equal to the amount of time from March 31, 2000 until the parties reach
agreement as to the marketing plan.  If MicroStrategy fails spend the
$5,000,000, such a failure shall be considered a material breach of the
agreement.

     3. Costs.  MicroStrategy  will pay all costs and  expenses  incurred in the
performance of its obligations under this Agreement.

     4. Coordination. All of these initiatives will be coordinated,  planned and
implemented in conjunction with Exchange  Applications  through a working group.
Operations of this working group are described in Exhibit A.  MicroStrategy  and
Exchange  Applications  will meet on a monthly basis to set the direction of the
marketing  initiatives and evaluate  progress.  No joint  marketing  initiatives
under the agreement will occur without the agreement of both parties.

     C.     TERM

    The term of this Agreement shall be for eighteen (18) months from the
    effective date first set forth above.  The Agreement shall automatically
    renew for successive one (1) year term unless, a party provides the other
    party notice of its intent to terminate at least forty-five (45) days before
    the expiration of the initial term or any renewal term.  In the event this
    Agreement expires or is terminated in accordance with the provisions hereof,
    neither MicroStrategy nor Exchange Applications shall be liable to the other
    because of such expiration or termination for any compensation, damages,
    reimbursements or loss of prospective or anticipated profits based upon any
    expenditure, investments of capital, leases, licenses or commitments made by
    either MicroStrategy or Exchange Applications for any reason whatsoever.  If
    the OEM Agreement terminates for any reason, this Agreement shall
    automatically terminate.

     D.  LIMITATION OF LIABILITY

         NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL,
CONSEQUENTIAL, OR INCIDENTAL DAMAGES ARISING OUT OF THE PERFORMANCE OF THIS
AGREEMENT, WHETHER SUCH CLAIM ARISES IN TORT OR CONTRACT, EVEN IF A PARTY HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.  EXCEPT FOR A BREACH OF THE
OBLIGATIONS SET FORTH IN SECTIONS 5 AND 6, IN NO EVENT SHALL EITHER PARTY'S
LIABILITY FOR DAMAGES HEREUNDER, IF ANY, EXCEED $10,000.000.

      E. PROTECTION OF PROPRIETARY MATERIAL. "Proprietary Material" shall mean
any information or data, in written, graphic or machine readable form which by
its nature or type should reasonably be considered proprietary or confidential
or which the disclosing party labels as being proprietary or confidential,
provided, however, that "Proprietary Material" does not include:


                                     Page 4
<PAGE>

 (i)   Information which is or becomes available in the public domain other than
       through disclosure by the receiving party (the "Recipient") in breach of
       this Agreement;

 (ii)  Information disclosed or made available at any time to the Recipient by a
       third party without restriction and without breach of any relationship of
       confidentiality to the party having rights to such information (the
       "Discloser");

 (iii) Information independently developed by the Recipient where the Recipient
       establishes that such development was accomplished without use of the
       confidential information of the Discloser;

 (iv)  Information which was already known to the Recipient, without an
       obligation of confidentiality to the Discloser, at the time of disclosure
       hereunder.

       Each party acknowledges and agrees that Proprietary Material of the
Discloser is confidential and constitutes a valuable asset of the Discloser or
(as applicable) of the Discloser's third-party licensor. The Recipient shall not
use any of the other party's Proprietary Material for any purpose not
specifically authorized in this Agreement, shall hold such Proprietary Material
in strict confidence, and shall not disclose such Proprietary Material to any
third party.

       Each party will limit access to the other party's Proprietary Material to
those employees and Authorized Contractors (as defined below) whose use of or
access thereto is necessary to the Recipient's authorized use of such
Proprietary Material. Each party has entered or will enter into appropriate
written agreements with its Authorized Contractors to prevent the unauthorized
use, disclosure or copying of the other party's Proprietary Material and shall
take all reasonable precautions to protect and maintain the confidentiality of
such Proprietary Material, including at a minimum, those precautions which the
Recipient employs to protect its own confidential information, but not less than
a reasonable degree of care. Each party shall bear the responsibility for any
breach of confidentiality by its employees, contractors and consultants.

       "Authorized Contractor" shall mean each of a party's contractors and
consultants whose access to the Proprietary Material is required for Recipient's
authorized use of such Proprietary Material and with whom a party has executed a
written agreement which prevents the unauthorized use, disclosure or copying of
the Proprietary Materials; provided, however, that in no event shall any
Competitor be permitted to be an Authorized Contractor hereunder even if such
person or entity is a consultant to or contractor of a party. For Exchange
Applications, "Competitor" means any person or entity that develops, markets or
licenses campaign management software.

       Each party agrees not to cause or permit the reverse engineering, reverse
assembly or reverse compilation of the other's Proprietary Material for any
purpose, or to otherwise attempt to derive source code from the other's
Proprietary Material. Each party agrees not to use, or allow any third party to
use, any Proprietary Material of the other party to aid in the development
and/or marketing of any product similar to or competitive with the other party's
Proprietary Material. The Recipient shall not disclose, publish, display or
otherwise make available to any person any of the other party's Proprietary
Material or copies thereof without the express prior written consent of the
Discloser.

                               Page 5
<PAGE>

       The Recipient shall not duplicate, copy or reproduce any of the other
party's Proprietary Material, except with the prior written consent of such
party or as otherwise permitted under this Agreement. All title, copyright and
other proprietary rights to all of a Discloser's Proprietary Material, including
all furnished by to the Recipient and in all copies made by the Recipient shall
be retained by such Discloser or (as applicable) by its third party licensor.
Neither party shall use any of the other's Proprietary Material to create works
that are based on the other party's Proprietary Material.

       Each party recognizes and acknowledges that irreparable damage might
result to the other if Proprietary Material is improperly used or disclosed by
the Recipient. Accordingly, each party agrees that legal proceedings at law or
in equity, including injunctive relief, shall be appropriate in the event of a
breach of this Section of the Agreement.

       Nothing herein shall prevent the Recipient from disclosing all or part of
the other party's Proprietary Material as necessary pursuant to the lawful
requirement of a governmental agency or when disclosure is required by operation
of law; provided that prior to any such disclosure, the Recipient shall (i)
promptly notify the Discloser in writing of such requirement to disclose, and
(ii) cooperate reasonably with the Discloser in protecting against any such
disclosure or obtaining a protective order.

       Each party's rights and obligations under this Section shall survive any
termination of this Agreement.

     F.  TRADEMARKS AND TRADE NAMES AND INTELLECTUAL PROPERTY

       1. Exchange Applications Useage During Agreement. During the term of this
Agreement,  Exchange  Applications  is  authorized by  MicroStrategy  to use the
trademarks  set forth in Exhibit A in  connection  with  Exchange  Applications'
advertisement  and  promotion  of  the  MicroStrategy   Softwares  and  Exchange
Application Products.  Exchange Applications' use of such trademarks shall be in
accordance with MicroStrategy's  policies in effect from time to time, including
but not limited to trademark usage and cooperative advertising policies. Nothing
contained in this  Agreement  shall give Exchange  Applications  any interest in
such  trademarks.  Exchange  Applications  agrees  that it will  not at any time
during or after this  Agreement  assert or claim any  interest in or do anything
that may  adversely  affect the validity or  enforceability  of any trademark or
trade name belonging to or licensed to MicroStrategy.

       2.  MicroStrategy  Usage  During  Agreement.  During  the  term  of  this
Agreement,  MicroStrategy  is  authorized  by Exchange  Applications  to use the
trademarks   set  forth  in  Exhibit  B  in  connection   with   MicroStrategy's
advertisement  and  promotion  of the EA Products and  MicroStrategy  Softwares.
MicroStrategy's  use of such  trademarks  shall be in  accordance  with Exchange
Applications' policies in effect from time to time, including but not limited to
trademark usage and cooperative advertising policies.  Nothing contained in this
Agreement   shall  give   MicroStrategy   any   interest  in  such   trademarks.
MicroStrategy agrees that it

                                     Page 6
<PAGE>

will not at any time during or after this  Agreement  assert or claim any
interest  in  or  do  anything  that  may  adversely   affect  the  validity  or
enforceability  of any  trademark  or trade name  belonging  to or  licensed  to
Exchange Applications.

       3. After  Expiration or  Termination.  Upon  expiration or termination of
this Agreement, Exchange Applications and MicroStrategy shall cease all display,
advertising and use of the other party's  tradenames and marks unless  otherwise
permitted by the other operative agreements.

       4. Other Intellectual Property Rights. Each party reserves all rights not
explicitly  granted in this  Agreement.  Each  Party  retains  ownership  in all
copyrights, trademarks, patents and trade secrets created by that Party.

     G.  GENERAL

       1.  Waiver,   Amendment  or  Modification.   The  waiver,   amendment  or
modification  of any provision of this  Agreement or any right,  power or remedy
hereunder  shall not be  effective  unless in  writing  and  signed by the party
against whom  enforcement of such waiver,  amendment or  modification is sought.
The terms of this Agreement  shall not be amended or changed by the terms of any
purchase  order,  acknowledgment,  invoice  or  similar  document,  even  though
MicroStrategy may have signed or accepted such documents. No failure or delay by
either party in exercising any right, power or remedy with respect to any of the
provisions of this Agreement shall operate as a waiver thereof.

       2.  Notices.  Any and all  notices  required  or  permitted  to be  given
hereunder  shall be in  writing  and shall be deemed to have been  given two (2)
business days after  deposit in the United States Mail,  certified or registered
mail,  postage  prepaid,  or one  business  day after  deposit with an overnight
delivery service of national reputation, and in any case addressed as follows:

     To MicroStrategy:

                    MicroStrategy Incorporated
                    8000 Towers Crescent Drive
                    Suite 1400
                    Vienna, VA 22182
                    ATTN: [Contracts Department]

     To Exchange Applications:

       3. No  Assignment  or  Successors.  All the terms and  provisions of this
Agreement  shall be binding upon and inure to the benefit of the parties  hereto
and their successors,  assigns and legal  representatives.  This Agreement shall
not be assigned by either

                                     Page 7
<PAGE>

party without the prior written consent of the other party; provided, however,
that neither party shall unreasonably withhold its consent to the assignment of
this Agreement to the successor in interest of the other party.  Notwithstanding
anything in the foregoing to the contrary, Exchange Applications reserves the
right to assign this Agreement to an affiliate without such consent; provided,
however, that Exchange Applications shall notify MicroStrategy of any assignment
of this Agreement to an affiliate, and Exchange Applications shall indemnify
MicroStrategy for any failure of a subsidiary to whom this Agreement has been
assigned for any failure of such subsidiary to act in accordance with the terms
of this Agreement.  Should Exchange Applications either party merge into or be
consolidated with any other organization, the other party may, at its option,
terminate this Agreement.

       4.  Disclaimer  of  Partnership  and  Agency.   The  parties  hereto  are
independent  contractors and shall have no power, nor will either of the parties
represent that either has any power,  to bind the other party or to assume or to
create any obligation or  responsibility,  express or implied,  on behalf of the
other party or in the other party's name.  This Agreement shall not be construed
as establishing a partnership between Exchange Applications and MicroStrategy or
creating any other form of legal  association  that would impose  liability upon
one party for the act or failure to act of the other.

       5.  Execution   of  Agreement,   Governing  Law,  and  Arbitration.  This
Agreement may be executed simultaneously 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.  This Agreement  shall be governed by and construed in
accordance  with the laws of the state of New York,  excluding  that body of law
known as conflict of laws. The parties will attempt in good faith to resolve any
controversy or claim by  negotiation or mediation.  If they are unable to do so,
and  regardless of the causes of action  alleged,  the claim will be resolved by
arbitration  before  a sole  arbitrator  in the  headquarters  city of the  non-
initiating  party pursuant to the then current  Commercial Rules of the American
Arbitration  Association.  The arbitrator's award will be final and binding, and
may be entered in any court having jurisdiction thereof. The arbitrator will not
have the power to award punitive or exemplary  damages,  or any damages excluded
by, or in excess of, any damage  limitations  expressed in this Agreement.  Each
party will bear its own  attorney's  fees and costs related to the  arbitration.
Any claim or action must be brought  within five years after the cause of action
accrues.

       6. Severability. If any provision of this Agreement is held by a tribunal
of competent  jurisdiction  to be contrary to the law, all other  provisions  of
this Agreement shall remain in full force and effect.

       7. Authorized Disclosure. Either party may disclose the existence of this
Agreement, but not its content, without the prior consent of the other party.

       8. Headings.  Section headings are included solely for  convenience,  are
not to be  considered a part of this  Agreement  and are not intended to be full
and accurate descriptions of the contents thereof.


                                    Page 8
<PAGE>

       9. Entire Agreement.  This Agreement,  including the Exhibits hereto that
are incorporated herein by reference, represents the entire understanding of the
parties  with  respect to the subject  matter  hereof and  supersedes  all prior
representations  and  agreements,  whether oral or written,  with respect to the
same subject matter.

       10.  Mutual  Drafting.  The  parties  acknowledge  and  agree  that  this
Agreement was drafted through the mutual effort of both parties.

     IN WITNESS WHEREOF, each of the parties hereto has duly executed this
Agreement effective as of the day and year first above written.

Exchange Applications, Inc.  MICROSTRATEGY

By:    [Illegible]               By:/s/ Sanju Bansal
       --------------------         -------------------------

Name:_____________________       Name: Sanju Bansal
                                       ----------------------

Title:____________________       Title: COO
                                       ----------------------

Date:_____________________       Date:________________________

                                     Page 9
<PAGE>

                                   EXHIBIT A
                                   ---------



                                     Page 8
<PAGE>

                                   EXHIBIT B
                                   ---------



                                     Page 9
<PAGE>

                                   EXHIBIT G
                                   ---------
<PAGE>

Copyright 2000, MicroStrategy Incorporated and Exchange Applications, Inc. All
Rights reserved.  The information contained herein is confidential.
<PAGE>

                                   EXHIBIT H
                                   ---------
<PAGE>

This exhibit lists the current trademarks of MicroStrategy.  This list will be
updated from time-to-time, by MicroStrategy, by giving OEM written notice.
MicroStrategy is currently updating this list.

PRODUCT ICONS

[ICON]    MICROSTRATEGY ADMINISTRATOR

[ICON]    MICROSTRATEGY AGENT
<PAGE>

[ICON]    MICROSTRATEGY ARCHITECT

[ICON]    MICROSTRATEGY EXECUTIVE

[ICON]    MICROSTRATEGY OBJECTS

[ICON]    MICROSTRATEGY PARTNERS
<PAGE>

[ICON]    MICROSTRATEGY SERVER

[ICON]    MICROSTRATEGY TRAINING

[ICON]    MICROSTRATEGY WEB
<PAGE>

[ICON]    MICROSTRATEGY CONSULTING

[ICON]    MICROSTRATEGY SUPPORT

[ICON]    MICROSTRATEGY BROADCASTER
<PAGE>

PRODUCT LOGOS
-------------

[logo for DSS Administrator]
[logo for DSS Agent]
[logo for DSS Architect]
[logo for DSS Broadcaster]
[logo for DSS Consulting]
[logo for DSS Executive]
[logo for DSS Objects]
[logo for DSS Partners]
[logo for DSS Server]
[logo for DSS Support]
[logo for DSS Training]
[logo for DSS Web]
<PAGE>

CORPORATE ART/TAG LINES
-----------------------

[ARTWORK]  MICROSTRATEGY FULL AGENT ART

[ARTWORK]  CRYSTAL BALL ART

Crystal Ball on Every Desk

Information Like Water
<PAGE>

The Power of Intelligent E-Business
<PAGE>

PRODUCT WORDS

MicroStrategy Broadcaster
MicroStrategy Agent
MicroStrategy Executive
MicroStrategy Web
MicroStrategy Web SE (Standard Edition)
MicroStrategy Web PE (Professional Edition)
Strategy.com
MicroStrategy InfoCenter
MicroStrategy Office
MicroStrategy Architect
Object Manager
Warehouse Monitor
MicroStrategy Administrator
Information Broadcasting
Query Tone
Information Like Water
The Power of Intelligent E-Business
<PAGE>

                                   EXHIBIT I
                                   ---------
<PAGE>

                                 MicroStrategy
                                Software License
                             And Services Agreement

This Software License Agreement ("Agreement") is entered into by and between
MicroStrategy Incorporated ("MicroStrategy"), with its principal place of
business at 8000 Towers Crescent Drive, Suite 1400, Vienna, VA  22182, and
Exchange Applications ("Licensee"), with its principal place of business at the
address listed below.  The terms of this Agreement shall apply to each Product
license granted and to all services provided by MicroStrategy under this
agreement.

1.   DEFINITIONS

1.1  "Affiliate" shall mean any person, corporation or other entity which,
      ---------
directly or indirectly, controls or is controlled by, or is under common control
with, Licensee.

1.2  "Agent" shall mean any third party, other than an Affiliate, providing
      -----
services to Licensee and under contract with Licensee.

1.3  "Confidential Information" shall mean, with respect to Microstrategy, the
      ------------------------
Products, Product information, trade secrets and technical information disclosed
by MicroStrategy in relation to this Agreement, the terms and pricing under this
Agreement, all information clearly identified by MicroStrategy as confidential
and all information disclosed hereunder by MicroStrategy in whatever form which
by its nature or type should reasonable be considered proprietary or
confidential.  "Confidential Information" shall mean, with respect to Licensee,
trade secrets and technical information disclosed by Licensee in relation to
this Agreement, all information clearly identified by Licensee as confidential
and all information disclosed hereunder by Licensee in whatever form which by
its nature or type should reasonably be considered proprietary or confidential.

1.4  "Effective Date" shall mean, with respect to the Agreement, the date on
      --------------
which the Agreement is signed by MicroStrategy and, with respect to a
MicroStrategy Sales Order Form, the date on which such MicroStrategy Sales Order
Form is signed by MicroStrategy.

1.5  "MicroStrategy Professional Services Sales Order Form" shall mean the
      ----------------------------------------------------
MicroStrategy document by which Licensee orders consulting and/or training
services.  To be effective, the MicroStrategy Professional Services Sales Order
Form, must reference this Agreement and its Effective Date and be signed and
dated by both parties.

1.6  "MicroStrategy Product License Sales Order Form" shall mean the
      ----------------------------------------------
MicroStrategy document by which Licensee orders Product licenses and Technical
Support.  To be effective, the MicroStrategy Product License Sales Order Form
must reference this Agreement and its Effective Date and be signed and dated by
both parties.

1.7  "MicroStrategy Sales Order Form" shall mean both the MicroStrategy Product
      ------------------------------
License Sales Order Form and the MicroStrategy Professional Services Sales Order
Form.

1.8  "Named User License" shall mean a license to use a Product under which only
      ------------------
one (1) identified User may access the Product.

1.9  "Product" shall mean any of the computer software programs identified in a
      -------
duly executed MicroStrategy Product License Sales Order Form for which Licensee
is granted a license pursuant to this Agreement ("Software"); the user guides
and manuals for use of the Software ("Documentation"); and any and all Updates
to, or patches and fixes for, the Software and Documentation.  The term
"Product" shall not include any code that has been modified or developed by or
for Licensee.

1.10  "Server" shall mean a uniquely identified logical computer with one or
       -----
more CPUs on which the Product resided and which can be accessed by other
computers.  For example, the term "Server" may refer to web servers, batch
servers and application servers.

1.11  "Server License" shall mean a license to use a server-based Product on one
       ---------
(1) Server under which only MicroStrategy Products may act as the user
interface.

1.12  "Technical Support Services" shall mean the maintenance and support
       --------------------------
provided by MicroStrategy in accordance with MicroStrategy's then-current
technical support policies and procedures for the applicable Product(s).
Notwithstanding the foregoing, MicroStrategy shall provide mainten4ence and
support for the current Product release and any prior Product release that is
not more than twelve (12) months old.

1.13  "Update" shall mean any subsequent release of Software and /or
       ------
Documentation that is made generally available to licensees subscribing to
Technical Support Services at no additional charge other than media and handling
charges.  Updates shall not include any release, option or future product that
MicroStrategy licenses separately.
<PAGE>

1.14  "User" shall mean an individual (employee or Agent) to whom License has
       ----
assigned an identification number for purposes of tracking use of a Product and
who is under an obligation to licensee to protect MicroStrategy's Confidential
Information.  If and when a User no longer has access to the Product, Licensee
may allow an alternate User to assume the initial User'' identification number
and use the Product in place of the initial User.

1.15  "Territory" shall mean North America.
       ---------


2.   PRODUCT LICENSE

2.1  Rights Granted.

A.  License Grant.  MicroStrategy grants to Licensee a non-exclusive and non-
transferable license to use the Software in object code form solely for
Licensee's own internal data processing operations, and to use the Documentation
in support of such use of the Software in the Territory.  Use of the Products
must be consistent with the type of license grant specified in the MicroStrategy
Product License Sales Order Form.  The Products may be used only by the number
of Users for whom, and on the number of Servers for which, license fees have
been paid and only in the Territory.  Licensee shall not use the Products except
as specified in this Agreement and the applicable MicroStrategy Product License
Sales Order Form.  Licensee shall assign each User and/or Server a unique
identification number.  Notwithstanding any other restriction in this Agreement
or the license grant specified in any Product Sales Order Form. Licensee shall
have the right and license to use the Products to operate and provide services
on a time-sharing, service bureau or application service provider basis.

B.  Right to Copy.  MicroStrategy shall supply one copy of each Product licensed
under this Agreement to Licensee.  Licensee may make object code copies of the
Software licensed under this Agreement for production purposes so long as the
total number of copies, including any copies supplied by MicroStrategy, does not
exceed the total number of Users for whom, and Servers for which, license fees
have been paid.  Licensee may also make object code copies of the software
obtained under this Agreement for archival or backup purposes as is reasonably
necessary.  Licensee may copy the Documentation so long as the total number of
copies, including any copies supplied by MicroStrategy, does not exceed the
total number of Users for whom, and Servers for which, license fees have been
paid.  All titles, trademarks, copyright and restricted rights notices shall be
reproduced in all Product copies.  All copies of the Products are subject to the
terms of this Agreement.  Licensee shall not copy the Products except as
specified in this Agreement.  Licensee shall not copy the Products except as
specified in this Agreement or a MicroStrategy Product License Sales Order Form.

C.  Retention of Rights.  MicroStrategy shall retain all title, copyright and
other proprietary rights in the Products.  Licensee shall not acquire any
rights, express or implied, in the Products, other than those specified in this
Agreement.

D.  Reverse Engineering.  Licensee shall not reverse engineer, disassemble or
decompile the Software or cause or permit the reverse engineering, disassembly
or decompilation of the Software.

E.  Unauthorized Use.  Licensee shall not use the Products for third-party
training, except as may be authorized herein.

F.  Other Products.  Licensee acknowledges that MicroStrategy may deliver the
Products licensed under this Agreement to Licensee on media that contains all of
MicroStrategy's generally available Products.  Licensee shall have no right to
use any software that may be delivered with the ordered Products for which
Licensee has not paid the applicable license fees.

G.  Pre-Release Products.  The terms and conditions of this Agreement shall not
apply to pre-release versions of the Products.  Such Products shall be governed
by a separate pre-release agreement.

2.2  Audit.

A.  Certification.  At MicroStrategy's written request, not more frequently than
once per year, Licensee shall furnish MicroStrategy with a signed certification
verifying that the Products are being used pursuant to the provisions of this
Agreement and applicable MicroStrategy Product License Sales Order Form.

B.  Audit.  MicroStrategy may, at its expense, audit Licensee's use of the
Products upon reasonable prior written notice.  Any such audit shall be
conducted during regular business hours at Licensee's facilities and shall not
unreasonably interfere with Licensee's business activities and shall be limited
to inspection of Licensee's applicable records.  If an audit reveals that
Licensee has distributed or allowed use of the Products in excess of the use
permitted by this Agreement, Licensee shall pay MicroStrategy for such
unauthorized use based on the MicroStrategy price list in effect at the time the
audit is completed, together with interest thereon at the rate of 1.5% per month
or, if lesser, the maximum amount permitted by law.  If the underpaid license
fees (but not including interest) exceed five percent (5%)
<PAGE>

of the license fees paid, the Licensee shall pay MicroStrategy's reasonable
costs of conducting the audit.  MicroStrategy shall conduct audits more than
once per year.

2.3  Additional Terms for DSS Broadcaster Server.  If Products include DDS
Broadcaster Server, you should be aware that this product requires Microsoft's
SQL Server product to operate.  MicroStrategy is not providing any license to
SQL Server pursuant to this Agreement.

3.   Technical Services

3.1  Technical Support Services.  Subject to the payment by Licensee of the
applicable fees, Technical Support Services ordered by Licensee shall be
provided in accordance with the terms of this Agreement.  If Licensee orders
Technical Support Services for a product, Licensee must order Technical Support
Services for all licensed copies of that product.  Technical Support Services
shall be provided on an annual basis, beginning on the Effective Date of the
relevant MicroStrategy Product License Sales Order Form.  Reinstatement of
lapsed Technical Support Services is subject to a reinstatement fee equal to the
Technical Support fees Licensee would have paid during the period of lapse.

3.2  Consulting and Training Services.  Unless the parties to this Agreement
enter into a separate professional services agreement, MicroStrategy shall
provide consulting and training services agreed to by the parties under the
terms of this Agreement, including a Professional Services Schedule.  All
consulting services shall be billed on a time and materials basis unless the
parties expressly agree otherwise in writing.  Any consulting services acquired
from MicroStrategy shall be bid separately from the Product licenses, and
Licensee may acquire either Product licenses or consulting services without
acquiring the other.

3.3  Incidental Expenses.  For any on-site services requested by Licensee,
Licensee shall reimburse MicroStrategy for all reasonable, actual travel and
out-of-pocket expenses incurred by MicroStrategy, its employees and consultants
in connection with such services.  Upon request, MicroStrategy shall provide
reasonable supporting documentation for such expenses.

3.4  Remote Access.  MicroStrategy shall be entitled to access Licensee's
computer network remotely in connection with the provision of Technical Support
Services and consulting services when establishing such access is reasonable
necessary and when an employee of Licensee authorizes such access, either orally
or in writing.


4.   Term and Termination

4.1  Term.  This Agreement shall remain in effect until it is terminated in
accordance with the provisions of this Section 4.  Any and all licenses granted
hereunder shall terminate upon termination of the Agreement.

4.2  Termination by Licensee.  Licensee may terminate any Product license or
this Agreement at any time, termination shall not, however, relieve Licensee of
the obligations specified in Section 4.4.

4.3  Termination for Material Breach.  Either party may terminate this Agreement
or any license upon written notice if the other party breaches this Agreement
and fails to correct the breach within thirty (30) days following written notice
specifying the breach.

4.4  Effect of Termination.  Termination of this Agreement or any license shall
not prevent either party from pursuing other remedies available to it, including
injunctive relief, nor shall such termination relieve Licensee's obligations to
pay all fees that have accrued prior to the termination date or are otherwise
owed by Licensee under any MicroStrategy Sales Order Form or other similar
ordering document under this Agreement.  The parties' rights and obligations
under Sections 2.1 C and 2.1 D, and Articles 4, 5 and 7 shall survive
termination of this Agreement.

4.5  Handling of Products Upon Termination.  If a license granted under this
Agreement expires or otherwise terminates, Licensee shall: (a) cease using the
applicable Products, and (b) certify to MicroStrategy within thirty (30) days
after expiration or termination that Licensee has destroyed or has returned to
MicroStrategy the Products and all copies thereof and any MicroStrategy
Confidential Information in Licensee's possession or control; provided, however,
that in the event that only certain licenses granted under this Agreement expire
or are terminated.  Licensee may retain any Confidential Information and
Products that relate to the licenses it continues to hold.  This requirement
applies to copies in all forms, partial and complete, in all types of media and
computer memory, and whether or not modified or merged into other materials.  In
the event of any termination of this Agreement, MicroStrategy shall certify to
Licensee within thirty (30) days after expiration or termination that
MicroStrategy has destroyed or has returned to Licensee all of Licensee's
Confidential Information in MicroStrategy's possession or control.


5.   Indemnity, Warranties, Remedies and Limitations of Liabilities
<PAGE>

5.1  Infringement Indemnity.  MicroStrategy will defend and indemnify Licensee
against all damages, fines, penalties, assessments, liabilities, costs and
expenses, including reasonable attorneys' fees and court costs, (collectively,
"Damages") arising out of a claim that the Products infringe a third party
copyright, trade secret or U.S. patent, provided that: (a) Licensee promptly
notifies MicroStrategy of the claim in writing; (b) MicroStrategy has sole
control of the defease and all related settlement negotiations; and (c) Licensee
provides MicroStrategy with the assistance, information and authority necessary
to perform MicroStrategy's obligations under this Section.  MicroStrategy shall
have no liability for any claim of infringement based on (1) use of a superseded
or altered release of Products if the infringement would have been avoided by
the use of a current, unaltered (unless altered by or on behalf of
MicroStrategy, or otherwise at MicroStrategy's direction) release of the
Products made available to Licensee; or (2) the combination of the Product with
other software, if such a claim would not have arisen except for such a
combination.

In the event the Products are held or believed by MicroStrategy to infringe,
MicroStrategy shall have the option, at its expense, to: (a) modify the Products
to be non-infringing (provided such modification does not materially degrade the
quality or performance of the Product); (b) obtain for Licensee a license to
continue using the Products; or if (a) and (b) are not reasonably available, (c)
terminate the license for the infringing Products and refund the license fees
paid for those Products, prorated over a three and one-half (3 1/2) year term
from the Effective Date of the applicable MicroStrategy Product License Sales
Order Form. This Section 5.1 states MicroStrategy's entire liability and
Licensee's exclusive remedy for infringement.

5.2  Warranties and Disclaimers.

A.  Software Warranty.  MicroStrategy warrants for a period of ninety (90) days
from the initial delivery of the Software (excluding Updates, patches and fixes)
that the unmodified Software obtained thereunder will perform in substantial
conformance with the technical specifications set forth in the Documentation.
MicroStrategy also warrants that until December 31, 2001, the unmodified
Software obtained thereunder (a) will not fail or produce incorrect results when
processing with four (4) digit dates for any year and (b) will function without
material interruption and without changes in operation (in either case
associated with the advent of the new century), before, during and after January
1, 2000 when processing with four (4) digit dates, assuming correct
configuration; provided, however, that MicroStrategy makes no warranty with
respect to any such failure or incorrect result that may arise due to: (i) the
quality of the data sought to be processed with the Software; (ii) the effect of
other software not licensed by MicroStrategy to Licensee or developed by
MicroStrategy for Licensee; or (iii) the  use of the Software in an operating
environment  or on a platform not specified by MicroStrategy.

B.  Media Warranty.  MicroStrategy warrants the CD-ROMs, diskettes or other
media on which the Software is provided to Licensee to be free of defects in
materials and workmanship under normal use for thirty (30) days from the
Effective Date of the applicable MicroStrategy Product Sales Order Form.

C.  Disclaimers.    THE WARRANTIES ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER
WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

MicroStrategy does not warrant that the Products will meet Licensee's
requirements, that the Products will operate in the combination which Licensee
may select for use, that the operation of the Products will be uninterrupted or
error-free or that all Product errors will be corrected. To the extent Licensee
obtains any pre-production releases of Products, such Products are distributed
"as is" with no warranty of any kind.

5.3  Exclusive Remedies.  For any breach of the warranties contained in Section
5.2, Licensee's exclusive remedy, and MicroStrategy's entire liability, shall
be:
<PAGE>

A.  For Software.  At MicroStrategy's sole discretion, the correction of
Software errors that cause breach of the warranty, replacement of such Software
or return of the license fees paid to MicroStrategy for the license of such
Software.

B.  For Media.  The replacement of defective media returned within thirty (30)
days of the Effective Date of the applicable MicroStrategy Product License Sales
Order Form.

5.4  Limitation of Liability.

A.  Limitation of Liability.  Except for (a) either party's breach of its
obligations under Section 7.1 (Confidentiality) and (b) MicroStrategy's
indemnity obligation in respect of third party Damages pursuant to Section 5.1
(Infringement Indemnity), IN NO EVENT SHALL EITHER PARTY BE LIABLE FOR ANY
INDIRECT, INCIDENTAL, SPECIAL, PUNITIVE OR CONSEQUENTIAL DAMAGES, OR DAMAGES FOR
LOSS OF PROFITS, REVENUE, DATA OR USE, INCURRED BY EITHER PARTY OR ANY THIRD
PARTY, WHETHER IN AN ACTION IN CONTRACT OR TORT, EVEN IF THE OTHER PARTY HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.  Except for (a) either party's
breach of its obligations under Section 7.1 (Confidentiality) and (b)
MicroStrategy's indemnity obligation in respect to third party Damages pursuant
to Section 5.1 (Infringement Indemnity), IN NO EVENT SHALL EITHER PARTY'S
LIABILITY FOR DAMAGES HEREUNDER EXCEED THE AMOUNT OF FEES PAID BY LICENSEE FOR
THE RELEVANT PRODUCT OR SERVICES GIVING RISE TO THE LIABILITY.

B.  Allocation of Risk.  The provisions of this Agreement allocate the risks
between MicroStrategy and Licensee, MicroStrategy's pricing reflects this
allocation of risk and the limitation of liability specified herein.

6.   Payment Provisions

6.1  Invoicing and Payment.  All fees shall be calculated based upon
MicroStrategy's prices in effect at the time of any quote or order, as
applicable.  All fees shall be payable thirty (30) days from the date of
invoice, and shall be deemed overdue if they remain unpaid thereafter.  Licensee
agrees to pay applicable shipping and handling charges.  If Licensee's
procedures require it to issue a purchase order, Licensee shall issue a purchase
order, or alternative document acceptable to MicroStrategy, on or before the
Effective Date of the applicable MicroStrategy Sales Order Form.  All Licensee
purchase orders or ordering documents shall be governed by the terms of this
Agreement.  In no event shall the terms of any Licensee-issued purchase order be
given any force or effect.

6.2  Taxes.  The fees listed in this Agreement or the applicable Sales Order
Form do not include taxes.  If MicroStrategy is required to pay sales, use,
property, value-added or other taxes based on the licenses or services granted
in this Agreement or on Licensee's use of Products or services, then such taxes
shall be billed to and paid by Licensee.  This Section shall not apply to taxes
based on MicroStrategy's income.

6.3  General Terms

7.1  Confidentiality

A.  During the term of this Agreement, each party may have access to the other
party's Confidential Information.  A party's Confidential Information shall not
include information that; (a) is or becomes a part of the public domain through
no breach of this Agreement; (b) was in the other party's possession prior to
the disclosure hereunder without an obligation of confidentiality to the
disclosing party; (c) is lawfully disclosed to the other party by a third party
without breach of any separate obligation of confidentiality to the disclosing
party; or (d) is independently developed by the other party without reliance on
the Confidential Information.  Licensee shall not disclose the results of any
benchmark tests of the Products to any third party without MicroStrategy's prior
written approval.

B.  The parties agree to hold each other's Confidential Information in
confidence during the term of this Agreement and for a period of four (4) years
after termination of this Agreement.  The parties agree that, unless required by
the law, they shall not make each other's Confidential Information available in
any form to any third party (other than its employees and Agents) or to use each
other's Confidential Information for any purpose other than the implementation
of this Agreement.  Each party agrees to take all reasonable steps to ensure
that Confidential Information is not disclosed or distributed by its employees
or agents in violation of the terms of this Agreement.  Furthermore, Licensee
agrees not to use any Confidential Information of MicroStrategy to create any
computer software program or user documentation that is substantially similar to
any MicroStrategy product.

C.  Each party shall retain all right, tittle and interest in and to its
Confidential Information, and the other party shall no acquire any right in
respect thereof except
<PAGE>

for the use contemplated by and in accordance with this Agreement.

7.2  Governing Law.  This Agreement, and all matters arising out of or relating
to this Agreement, shall be governed by the laws of the State of New York,
excluding it conflicts laws.

7.3  Intentionally Omitted.

7.4  Notice.  All notices, including notices of address change, required to be
sent under this Agreement, shall be in writing and shall be deemed to have been
given when mailed by first class mail to the relevant address listed in the
signature blocks of this Agreement or the address stated in any applicable
notice of change of address.  To expedite order processing, Licensee agrees that
MicroStrategy may treat documents faxed by Licensee to MicroStrategy as original
documents; nevertheless, either party may require the other to exchange original
signed documents.

7.5  Severability.  In the event any provision of this Agreement is held to be
invalid or unenforceable, the remaining provisions of this Agreement shall
remain in full force.

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

7.7  U.S. Government Restricted Rights.  Products acquired with United States
Federal Government funds or intended for use within or for any United Stated
federal agency are provided with "LIMITED RIGHTS" and "RESTRICTED RIGHTS" as
defined in DFARS 252.227-7013 and/or FAR 52.227-19.

7.8  Export Administration.  Licensee agrees to comply fully with all relevant
export laws and regulations of the United States ("Export Laws") to assure that
neither the Products nor any direct product thereof is exported, directly or
indirectly, in violation of Export Laws; or is intended to be used for any
purposes prohibited by the Export Laws, including, without limitation, nuclear,
chemical or biological weapons proliferation.

7.11 Force Majeure.  Neither party will be responsible for failure of
performance, other than for an obligation to pay money, due to causes beyond its
control, including, without limitation, acts of God or nature; labor disputes;
sovereign acts of any federal, state or foreign governments; or shortage of
materials.

7.12 Relationship between the Parties.  MicroStrategy is an independent
contractor.  Nothing in this Agreement shall be construed to create a
partnership, joint venture or agency relationship between the parties.

7.13 Press Release.  The parties agree that each party may issue an initial
press release announcing that Licensee is now a customer of MicroStrategy and
MicroStrategy may use Licensee's name in its customer lists.  Neither party may
announce the terms of this Agreement.

7.14 Entire Agreement and Construction

A.  Entire Agreement.  This Agreement constitutes the complete agreement between
the parties and supersedes all prior agreements and representations, written or
oral, concerning the subject matter of this Agreement.  This Agreement may not
be modified or amended except in a writing signed by a duly authorized
representative of each party; no other act, document, usage or custom shall be
deemed to amend or modify this Agreement.

B.  Construction.  It is expressly agreed that the terms of this Agreement and
any MicroStrategy Product License Sales Order Form shall supersede the terms in
any Licensee purchase order or other ordering document.  This Agreement shall
also supersede all terms of any unsigned or "shrink-wrap" license included in
any package, media or electronic version of MicroStrategy furnished software and
any such software shall be licensed under the terms of this Agreement.  When
executed and dated by both parties, any MicroStrategy Sales Order Forms that
reference this Agreement and its Effective Date shall be incorporated herein.
<PAGE>

                                         Licensee (company name and address)
[MicroStrategy logo]                     [Exchange Applications logo]

8000 Towers Crescent Drive
Vienna, VA  22182                        One Lincoln Plaza
Phone: (703) 848-8600                    Boston, MA  02111
Fax:   (703) 848-8748                    Phone:  (617) 737.2244
                                         Fax: (617) 443.9143

Name   /s/ Sanju Bansal                  Name: [Illegible]
       ----------------

Title: Sanju Bansal                      Title:  ________________________
       --------------------------

Signature: COO                           Signature:______________________
           ----------------------
<PAGE>

                                 MicroStrategy
                                Escrow Addendum

     This Escrow Addendum (the "Escrow Addendum") made and entered into as of
the latest date below the signatures of the parties, by and between
MicroStrategy and Licensee, amends the Software License and Services Agreement
between MicroStrategy and Licensee dated December 28, 1999 (the "Agreement").
All references are to the Agreement.  Unless otherwise defined in this Escrow
Addendum, capitalized terms shall have the same meaning as in the Agreement.

     MicroStrategy agrees to keep, an maintain current, a copy of the source
code for the Products licensed by Licensee in escrow with a third party (the
"Escrow Agent"), pursuant to an escrow agreement by and between MicroStrategy
and the Escrow Agent (the "Escrow Agreement").  MicroStrategy further agrees to
name Licensee as a third-party beneficiary to the Escrow Agreement within ten
(10) business days after execution of this Escrow Addendum.

     MicroStrategy shall pay all costs of providing and maintaining the source
code in escrow, except the annual license registration fee, which shall be paid
by Licensee.  Changes made to the source code from time to time by MicroStrategy
shall be delivered to the Escrow Agent in a timely fashion following the general
release of that version of the licensed Product.

     Licensee agrees to seek release of the source code for any Product only in
accordance with the procedures set forth in the Escrow Agreement.
Notwithstanding anything to the contrary in the Escrow Agreement, Licensee shall
be entitled to seek release of the source code for a Product only in the event
that: (a) MicroStrategy ceases to offer Technical Support Services for the
Product; (b) MicroStrategy files or is the subject of the filing of a petition
for relief under the United States Bankruptcy Code except when such filing is
for purposes or reorganization or is dismissed within sixty (60) days of the
filing; or (c) MicroStrategy ceases business operations generally.

     If the source code is released to Licensee, Licensee shall have a limited,
non-exclusive, non-transferrable license to use such source code only to support
Licensee's use of the Products as authorized under the Agreement and for no
other purposes whatsoever.  Licensee shall have no right to reproduce the source
code, except for one (1) archival copy, or grant access to the source code to
any third party, except that Licensee's Agents may access the source code so
long as Licensee assumes full responsibility for any failure of such Agents to
comply with the terms of the Agreement or this Addendum.  Licensee acknowledges
and agrees that all title and proprietary rights in and to the source code shall
remain at all times with MicroStrategy, and nothing contained herein shall
operate or be deemed to transfer to Licensee any ownership interest or
proprietary rights in or to the source code.  The source code shall be
considered Confidential Information of MicroStrategy and be treated as such.

     The license to use the source code shall commence as of the date of
delivery of the source code to Licensee and shall expire upon expiration or
termination of the licenses for the Products to which the source code relates.
Notwithstanding the foregoing, Licensee shall return the source code and all
copies thereof to MicroStrategy in the event that MicroStrategy resumes offering
Technical Support Services for the Products and continues to do so for a period
of sixty (60) days, or resumes and maintains normal business operations for a
period of sixty (60) days, depending upon the circumstances entitling Licensee
to seek release of the source code.

     EXCEPT AS AMENDED AND MODIFIED by this Escrow Addendum, the Agreement shall
otherwise remain in full force and effect, the parties hereto hereby ratifying
and confirming the same.

     IN WITNESS WHEREOF, MicroStrategy and Licensee have caused this Escrow
Addendum to be duly executed.


EXCHANGE APPLICATIONS                    MICROSTRATEGY INCORPORATED

______________________________           ______________________________________
Signature                                Signature

_______________________________          ______________________________________
Name and Title (Please Print)            Name and Title (Please Print)

_______________________________          _______________________________________
Date                                     Date
<PAGE>

                                   Exhibit J

This Exhibit details the delivery schedule for the MicroStrategy Software.

I.  Delivery Stages

MicroStrategy will deliver the software set forth below on or before the dates
indicated below.  For example, MicroStrategy will deliver all of the
MicroStrategy Software for Stage 1 on or before January 15, 2000.  Each stage
may contain several Phases, as outline in Section II below.
<TABLE>
<CAPTION>

                                                   Stage 1         Stage 2      Stage 3      Stage 4
                                                   -------         -------      -------      -------
                                                 Delivery on     Delivery on  Delivery on  Delivery on
                                                 Or before       or before    or before    or before
                                                  1/15/00         4/15/00      7/15/00      9/30/00
                                                  --------        --------     --------      -------

MicroStrategy Software                           Deliverable    Deliverable   Deliverable  Deliverable
----------------------                           -----------    -----------   -----------  -----------
<S>                                           <C>               <C>          <C>          <C>
MicroStrategy Intelligence Server (4 proc)            310          225            225       Unlimited
MicroStrategy Web Server (4 proc)                     310          225            225       Unlimited
MicroStrategy Broadcast Server                        310          225            225       Unlimited
MicroStrategy InfoCenter Server                       325          138            138       Unlimited
MicroStrategy Development Bundle                      310          225            225       Unlimited
MicroStrategy Architect                               310          225            225       Unlimited
MicroStrategy Administrator                           310          225            225       Unlimited
MicroStrategy Executive                               310          225            225       Unlimited
MicroStrategy Enterprise Reporting Module             325          138            138       Unlimited
MicroStrategy Agent                               106,000      362,000        362,000       Unlimited
MicroStrategy Web PE                            1,700,000      950,000        950,000       Unlimited
MicroStrategy Web SE                            1,700,000      950,000        950,000       Unlimited
MicroStrategy Broadcaster                       3,500,000    2,250,000      2,250,000       Unlimited
</TABLE>
<PAGE>

II.    Delivery Phases.

Each Stage set forth above, will have the following phases:

<TABLE>
<CAPTION>

                                 Phase I Phase II Phase III Phase IV   Phase V  Phase VI  Phase VII Phase VIII    Total
                                 ------- -------- --------- --------   -------  --------  --------- ----------    -----
<S>  <C>
MicroStrategy
Intelligence
Server (4 proc)                      62       62       62       62        62        225        225  Unlimited        760

MicroStrategy
Web Server(4 proc)                   62       62       62       62        62        225        225  Unlimited        760

MicroStrategy
Broadcast
Server                               62       62       62       62        62        225        225  Unlimited        760

MicroStrategy
InfoCenter
Server                               65       65       65       65        65        138        138  Unlimited        600

MicroStrategy
Development
Bundle                               62       62       62       62        62        225        225  Unlimited        760

MicroStrategy
Architect                            62       62       62       62        62        225        225  Unlimited        760

MicroStrategy
Executive                            62       62       62       62        62        225        225  Unlimited        760

MicroStrategy
Enterprise
Reporting
Module                               65       65       65       65        65        138        138  Unlimited        600

MicroStrategy
Agent                            21,200   21,200   21,200   21,200    21,200    362,000    362,000  Unlimited    830,000

MicroStrategy
Web PE                          340,000  340,000  340,000  340,000   340,000    950,000    950,000  Unlimited  3,600,000

MicroStrategy
Web SE                          340,000  340,000  340,000  340,000   340,000    950,000    950,000  Unlimited  3,600,000

MicroStrategy
Broadcaster                     700,000  700,000  700,000  700,000   700,000  2,250,000  2,250,000  Unlimited  8,000,000


                                Delivery on or                                Delivery   Delivery   Delivery
                                behalf On or before                           on or      on or      on or
                                1/15/00                                       before     before     before
                                                                              4/15/00    7/15/00    9/30/00
</TABLE>
<PAGE>

                                   EXHIBIT K
                                   ---------

     "Competitor" means any third party or entity that offers for sale to the
general public a competing software product in relation to the disclosing
party's generally available software products.
<PAGE>

                                   EXHIBIT L
                                   ---------
<PAGE>

                                  STRATEGY.COM
                                  ------------
                               AFFILIATE AGREEMENT
                               -------------------

This Strategy.com Affiliate Agreement is made on this 28th day of December, 1999
(the "Effective Date"), by and between MicroStrategy Incorporated
("MicroStrategy"), a Delaware Corporation and Exchange Applications, Inc., a
Delaware corporation ("Affiliate").

                                    RECITALS

A.  MicroStrategy has developed Strategy.com, the Personal Intelligence Network,
    a new network that distributes to its customers personalized, real-time
    information in various subject categories (e.g., news, weather, sports) via
    numerous receiving devices (e.g., email, pager, telephone).

B.  Affiliate desires to acquire a license from MicroStrategy to market these
    personalized programming services to Affiliate's customers.

C.  MicroStrategy desires to grant Affiliate a license to market these
    personalized programming services to Affiliate's customers.

                                   AGREEMENT

    In consideration of the mutual promises contained herein, the Parties agree
    as follows:

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

 1.1 "Advertising Inventory" means the space available in the Services
     distributed over the Local Network for the placement of advertisements.
     Advertising Inventory can refer to a single space, for example, a banner ad
     at the top of an email alert, or it can refer to the cumulative amount of
     such spaces in the Services delivered over the Local Network.

 1.2 "Affiliate Subscriber" means an individual who has completed the Co-branded
     Subscription Web Page and agrees to adhere to the terms and conditions of
     the Strategy.com subscription agreement.

 1.3 "Agreement" means the terms and conditions contained in this Agreement, any
     Attachments to this Agreement and any other documents made a part of this
     Agreement or incorporated into this Agreement by reference, including any
     written amendments to this Agreement that have been signed by an authorized
     representative for each Party.

 1.4 "Basic Services" means the part of the Services determined by MicroStrategy
     to be the Basic Services and may include the types of information set forth
     in the Scope of Services section set forth in subparagraph 2.1. Basic
     Services specifically exclude Premium Services.

 1.5 "Co-branded" means an email message, web page, text pager message, or any
     other medium in which the trademarks, service marks and trade dress of
     Affiliate and the Network appear in approximately equal weight.
<PAGE>

 1.6 "Co-Branded Subscription Web Page" means the subscription interface that
     Affiliate Subscribers access via Affiliate's website and use to give
     identifying and billing information, as well as indicate their preferences
     for the types of information about which they want to be alerted (e.g.,
     news about one's employer, updates on a favorite sports team, a forecast
     for snow for Aspen).  The Co-branded Subscription Web Page is the only
     Co-branded space on the Web.

 1.7 "Channel" means a personalized information service in which Content is
     aggregated, formatted and grouped into a unique subject category (e.g.,
     finance, weather, sports) and delivered to individuals using various
     delivery mechanisms (e.g., email, pager, fax) through the Network.  The
     initial Channels are expected to be: (1) Strategy.com Finance;
     (2) Strategy.com Weather; (3) Strategy.com News;(4) Strategy.com Sports and
     (5) Strategy.com Traffic.

 1.8 "Confidential Information" means the Content, the trade secrets and
     technical information of either Party disclosed in relation to this
     Agreement; the terms and pricing under this Agreement; and all information
     clearly identified in writing as confidential.

 1.9 "Content" means both MicroStrategy and Procured Content.


1.10 "Electronic Commerce Service" means a service that offers Subscribers, via
     the Network, the opportunity to purchase or sell any good or service
     through an electronic medium such as the Internet or a two-way pager.
     For example, if through the Strategy.com Finance Channel, a Subscriber is
     offered an opportunity to purchase or sell a stock via a two-way pager or
     e-mail, then that offer would be an Electronic Commerce Service.

1.11 "Local Network" means the limited part of the Network that delivers the
     Services to only Affiliate Subscribers (i.e., the parts of the Services
     that are Co-branded with Affiliate and Network Logos, or are intended to be
     Co-branded pursuant to Paragraph 2.)

1.12 "MicroStrategy Content" includes any design elements, graphics,
     formatting, facts, narratives, information, other textual materials, SQL
     code, data models and other software, code or technology developed by
     MicroStrategy for use with the Services.

1.13 "Network" means Strategy.com, the network formed by MicroStrategy to
     deliver the Services and provide related customer support.

1.14 "Party" refers to MicroStrategy or Affiliate individually; "Parties"
     refers to MicroStrategy and Affiliate collectively.

1.15 "Premium Services" means the part of the Services determined by
     MicroStrategy to be the Premium Services, which are likely to contain
     specialized information that is highly valued by a limited number of
     Subscribers.  Premium Services specifically exclude Basic Services.
<PAGE>

1.17 "Procured Content" means any and all design elements, graphics,
     formatting, facts, narratives, information, stories, photographs, maps,
     illustrations and other materials relating to the Services created by a
     third party and licensed by MicroStrategy for use with the Services.  The
     providers of Procured Content are referred to herein as "Content
     Providers".

1.18 "Services" means the Content, including the Basic and Premium
     Services, that MicroStrategy makes available to Affiliate Subscribers over
     the Local Network.

1.19 "Web" means the World Wide Web.  The meaning of Web does not include
     electronic mail messages ("email") distributed through the Network.

2.   LICENSES.
     --------

2.1  Scope of Services: MicroStrategy will make available to Affiliate
     Subscribers the Basic and Premium Services as set forth below on the
     Strategy.com Finance Channel and will make available other Strategy.com
     channels when they become generally available.

     (a) The Basic and Premium Services:  MicroStrategy has a commitment to
         provide a set of Basic Services in order to offer "one stop shopping"
         for personal intelligence.  MicroStrategy may make available to
         Affiliate Subscribers the Basic Services distributed through the
         Channels listed above and also may make available Premium Services
         distributed through these Channels.  MicroStrategy may also make
         available to Affiliate new Channels, when they become generally
         available, under the same terms and conditions set forth in this
         Agreement.

     (b) Affiliate's Right to Opt Out of Certain Services: Affiliate is under no
         obligation to offer any particular Channel or Service, and may decide,
         for any reason, that any Channel or Service is inappropriate for
         delivery under the brands of both Affiliate and the Network.  These
         reasons may include: (a) the Service is dilutive to the Affiliate brand
         or inconsistent with Affiliate's image; (b) Affiliate would like to see
         how other markets are reacting to new programming before offering it to
         Affiliate customers, or (c) Affiliate believes the subscription fee too
         high or the royalty share too low.

2.2. Marketing the Services: MicroStrategy grants to Affiliate a non-
transferable, nonexclusive, worldwide license to market to Affiliate customers
the Channels and Services made available to Affiliate Subscribers pursuant to
subparagraph 2.1, subject to the terms of this Agreement.

2.3  Co-branding of Services: The Co-branded Subscription Web Page and email
messages sent to Affiliate Subscribers as part of the Services will be Co-
branded with both an Affiliate and Network Logo, and will contain the trade
dress of both the Affiliate and the Network.  In addition, it is understood
between the Parties that the Services delivered via wireless and telephonic
receivers will also be Co-branded when such Co-branding is technologically
<PAGE>

and commercially feasible.  MicroStrategy also retains the right to
Co-brand any other parts of the Services that are delivered to Affiliate
Subscribers.  The parts of the Services that are Co-branded, or are
intended to be Co-branded under this subparagraph, make up the Local
Network.  Use of Network logos shall be subject to the guidelines issued by
MicroStrategy from time to time.

2.4. Use of Service Marks: MicroStrategy grants to Affiliate a limited, non-
transferable and revocable license to use the Network service marks hosted on
the MicroStrategy server and made available to Affiliate via an absolute link
for the limited purpose of advertising, promoting and marketing the Services and
Network to Affiliate customers, including without limitation, for the marketing
commitments set forth in this Agreement.  Affiliate shall not use said marks for
any other purpose.  Affiliate grants to MicroStrategy a limited, non-
transferable and revocable license to use the Affiliate service marks provided
by Affiliate or hosted on Affiliate's server and made available to MicroStrategy
via an absolute link, to Co-brand the Services as set forth in this Agreement
and to advertise, promote and sell the Services and Network, including, without
limitation, to Affiliate customers.  MicroStrategy shall not use said marks for
any other purpose.

2.5  Subscription Data: MicroStrategy grants to Affiliate a royalty-free
license to access and use the Subscription Data collected by MicroStrategy and
associated with Affiliate Subscribers in conformance with Affiliate's Privacy
Policy, attached  hereto as Attachment A, so long as the Affiliate's Privacy
Policy does not violate any applicable laws or MicroStrategy's ethical mores.

2.6  Seat on Programming Council: Affiliate shall be entitled to a
membership seat on the Network's Programming Council, through which seat it may
offer input regarding the Network's programming.

2.7  Reservation of Rights: Affiliate shall not acquire any rights, express
or implied, in the Network, Services, or Content other than those specified in
this Agreement.  MicroStrategy and/or its Content Providers shall retain all
title, copyright and other proprietary rights in the Network, Services and
Content.  All rights not expressly granted herein are reserved by MicroStrategy.

3.   MICROSTRATEGY RIGHTS AND RESPONSIBILITIES.
     -----------------------------------------

3.1  The Network: MicroStrategy shall form the Network and provide maintenance
and support for the Services, including customer service and engineering
support. The Network shall provide the operational infrastructure necessary for
the delivery of the Services, including all required hardware, information
feeds, Procured Content and MicroStrategy Content.

3.2  Subscriptions, Fees, Packages and Pricing: MicroStrategy will be the sole
entity to enter into subscription agreements with Affiliate Subscribers and
collect subscription fees.  MicroStrategy will have complete pricing authority
with respect to the Services, including the Basic and Premium Services.
<PAGE>

3.3  Creation of Co-branded Subscription Web Page: MicroStrategy will, at no
cost to Affiliate, create a Co-branded, custom web subscription interface for
use by Affiliate's Subscribers.  The Co-branded Subscription Web Page will be
co-branded with both an Affiliate and Network logo and contain the trade dress
of both the Affiliate and the Network.

3.4  Advertising Inventory/Electronic Commerce Services: MicroStrategy will be
responsible to price and sell the Advertising Inventory and Electronic Commerce
Services (the "ECS") and to collect all fees associated with the sale of such
Advertising Inventory and ECS.  MicroStrategy's failure to establish advertising
on the Service or to create the ECS, for any reason, shall not be a breach of
this Agreement.

3.5  Customization of the Service: MicroStrategy will make available to
Affiliate, on a time and materials basis, specialized engineering and consulting
services to: (a) create additional custom features, such as development and
support for new devices offered by Affiliate or customization of styles and
formats of existing Network services, and (b) provide custom integration
services, such as determining appropriate protocols, custom data loads,
optimizing service schedules, and working within current infrastructure
requirements such as bandwidth constraints.  The charges for the time spent by
MicroStrategy engineers and consultants on such services will be at
MicroStrategy then current rates for engineers and consultants.

3.6  Editorial Control/Right to Reject Advertisements: MicroStrategy reserves
complete editorial control and freedom in the form and content of the Services
and may alter the same from time to time.  In addition, MicroStrategy reserves
the right to reject any advertisement for any reasonable commercial purpose,
including, without limitation, because MicroStrategy believes the advertisement
to be: (a) indecent, (b) discriminatory on the basis of race, gender or
ethnicity, (c) in violation of any federal, state or local law or regulation,
(d) for a direct competitor of MicroStrategy or the Network or (e) requires a
technology for distribution that the Network cannot support.

3.7  Subscription Data: MicroStrategy will use the subscription data collected
by MicroStrategy and associated with Affiliate Subscribers in accordance with
the MicroStrategy Privacy Policy, such policy attached as Attachment B.

3.8  Modification or Cancellation of a Channel or Service: MicroStrategy may
modify without notice any Channel or Service, including any Basic or Premium
Service, for any reason whatsoever, including, if the provision of all or part
of such Channel or Service: (a) becomes the subject of a claim of infringement
of third-party ownership rights; (b) becomes illegal or contrary to any
applicable law or (c) depends on an agreement between MicroStrategy and a third
party, and that agreement is re-interpreted, modified or terminated for any
reason or breached by the third party and as a result MicroStrategy is unable to
continue to provide all or part of the Channel or Service upon terms reasonably
acceptable to MicroStrategy.  If any of the foregoing events occurs,
MicroStrategy's sole obligation will be to use commercially reasonable efforts
to procure substitute content.

4.   AFFILIATE RIGHTS AND RESPONSIBILITIES.
     --------------------------------------
<PAGE>

4.1  Marketing Commitments: Affiliate will make at least the following marketing
commitments to promote the Services as delivered over the Local Network:

     (a)  Affiliate and MicroStrategy may issue a joint press release announcing
          this relationship, but not its financial terms, within ten days of the
          execution of the Agreement and Affiliate agrees to support secondary
          press releases (e.g., announcement of new upgrades to the services).

     (b)  Affiliate will give prominent placement of the Strategy.com logo on
          Affiliate's homepage (e.g., the logo should, at the least, be "above
          the fold") and ensure that "clicking" on the logo will transport the
          customer to a Co-branded part of the Strategy.com wesbite.

4.2  No Right to Modify the Services:Other than the Affiliate's right to opt out
of certain services, the Parties do not expect that Affiliate will ever be in a
position to alter the Services or the Content prior to their delivery to
Affiliate Subscribers. To the extent that Affiliate is ever in such a position,
Affiliate shall display the Services in the exact form in which they are
received by Affiliate, and shall not modify or edit any Service without
MicroStrategy's prior, written consent.  In addition, Affiliate shall comply
with any and all limitations or restrictions placed by MicroStrategy or any
third party provider of Procured Content on the use, display or distribution of
any of the Content or Services.

4.3  Compliance with Applicable laws: Affiliate shall comply with all applicable
international, national, state, regional and local laws and regulations in
performing its duties hereunder and in any of its dealings with respect to the
Services.

4.4 Protection of MicroStrategy's Intellectual Property: Affiliate shall use
commercially reasonable efforts to protect the rights of MicroStrategy and its
Content Providers in all applicable trademarks, patents, logos, service marks,
copyrights and trade secrets including that:

     (a) Personal, Noncommercial Use of Subscribers: Affiliate acknowledges that
         the Services are provided to the Subscriber for the Subscriber's
         personal, noncommercial use and that the Subscriber shall be prohibited
         from distributing or otherwise giving access to the Services or Content
         to any third party.  Accordingly, Affiliate agrees not to cause or
         permit any Subscriber to use the Services or Content for any purpose
         other than for Subscriber's personal, noncommercial use or from
         distributing or otherwise giving access to the Services or the Content
         to any third party, unless otherwise permitted in writing by
         MicroStrategy.

     (b) Derivative Works/Reverse Engineering: Affiliate agrees not to cause or
         permit anyone to modify or create any derivative work of the Services
         or Content or to adapt the Services or Content for use on any computer
         system, or to reverse assemble, decompile or reverse engineer, or
         otherwise attempt to derive the source
<PAGE>

         code for the Services, or to otherwise take any action in derogation of
         the intellectual property rights of MicroStrategy or its Content
         Providers.

     (c) What to do if unauthorized use: If Affiliate learns of any misuse or
         unauthorized distribution of the Services, including, without
         limitation, any Subscriber misuse or distribution, Affiliate shall
         immediately notify MicroStrategy, Director of Contracts, and cooperate
         fully with MicroStrategy to limit any damages to MicroStrategy or its
         Content Providers. Affiliate further agrees not to use MicroStrategy
         and Network trademarks and service marks other than as provided for in
         this Agreement.

4.5  Costs of Affiliate Obligations: Except as expressly provided herein or
agreed to in writing by MicroStrategy and Affiliate, Affiliate shall pay all
costs and expenses incurred in the performance of Affiliate's obligations under
this Agreement.

4.6  Cooperation in Delivery of Services: Affiliate shall provide MicroStrategy
with all reasonable cooperation necessary to enable MicroStrategy to deliver the
Services.

4.7  Misleading Practices: Affiliate shall: (a) refrain from deceptive,
misleading or unethical practices in connection with providing the Services to
Affiliate Subscribers; (b) make no false or misleading representations with
regard to MicroStrategy, the Network or the Services; and (c) refrain from
publishing or employing, or cooperating in the publication or employment of, any
misleading or deceptive advertising material with regard to MicroStrategy, the
Network or the Services.

5.   ROYALTIES AND PAYMENTS
     ----------------------

5.1  This Section is intentionally omitted.
     -------------------------------------

5.2  Basic Services Royalty: MicroStrategy shall pay Affiliate a royalty equal
to forty percent (40%) of the Net Revenue associated with the Basic Services as
delivered over the Local Network, such revenue to be derived from subscription
fees, the sale of advertising inventory and commissions on e-commerce services.
For the purposes of this subparagraph, "Net Revenue" means the total dollar
amount actually collected by MicroStrategy minus taxes and third party costs,
including, without limitation, credit card fees, transaction fees, and fees paid
to, or for, advertising agencies, fulfillment houses, cost of collection and
carrier charges.  For example, if MicroStrategy collects $100,000 in revenue
associated with the Local Network, and pays $15,000 in advertising agency fees,
$5000 to fulfillment houses, $2500 in credit card fees, and $200 in collection
fees, Net Revenue will equal $77,300.  Accordingly, Affiliate will be paid 40%
of $77,300 or $30,920.

5.3  Premium Services Royalty: The royalty share for each Premium Service will
be determined on a case-by-case basis.
<PAGE>

5.4  Quarterly Reports: MicroStrategy will provide Affiliate with quarterly
reports regarding the matters with respect to the royalty obligations.  The
reports due in any given quarter shall be provided within twenty (20) days of
the end of such quarter.  The royalty payments due for any given quarter shall
be paid within thirty (30) days of the submission of the report; however, in no
event will payment be later than fifty (50) days of the end of the applicable
quarter.

5.5  Payment of Taxes: Affiliate shall be solely responsible for any and all
sales or use taxes of whatever nature, including without limitation federal,
state and local taxes and surcharges, applicable to Affiliate's marketing of the
Services.

6.   WARRANTIES AND DISCLAIMERS.

6.1  Disclaimer of Completeness, Accuracy or Timeliness: The Content for the
Services are obtained from sources believed by MicroStrategy to be reliable.
MicroStrategy warrants that it will endeavor to ensure that the Content is
complete, accurate and timely and that there will be no interruption in the
Services.  MicroStrategy does not, however, represent, warrant or guarantee such
completeness, accuracy or timeliness, nor that there will be no interruption in
the Services.  In addition, MicroStrategy does not make any warranty as to the
results that may or may not be obtained by Affiliate or its Subscribers in
connection with this Agreement or the Services. MICROSTRATEGY EXPRESSLY
DISCLAIMS ALL WARRANTIES OF FITNESS OF THE SERVICES OR ITS CONTENT FOR A
PARTICULAR PURPOSE OR USE.  EXCEPT AS SPECIFICALLY SET FORTH IN THIS AGREEMENT,
NEITHER PARTY MAKES ANY WARRANTIES AND EACH PARTY HERETO SPECIFICALLY DISCLAIMS
ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
NON-INFRINGEMENT.

6.2  EXPRESS DISCLAIMERS: THE EXPRESS WARRANTY SET FORTH ABOVE CONSTITUTES THE
ONLY WARRANTY WITH RESPECT TO THE SERVICES OR CONTENT.  MICROSTRATEGY MAKES NO
OTHER REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED
(EITHER IN FACT OR BY OPERATION OF LAW) WITH RESPECT TO THE SERVICES OR THE
CONTENT.

6.3  If Non-conformity: MicroStrategy shall have no obligation under the
warranty provisions set forth in this Paragraph for any nonconformity if caused
by: (a) Affiliate's or Affiliate Subscriber's incorporation, attachment or
engagement of any attachment, feature, program, or device to the Services, or
any part thereof, (b) accident; transportation; neglect or misuse; alteration,
modification, combination with materials not supplied by MicroStrategy, or
enhancement of the Services by Affiliate or Affiliate Subscriber or (c) use of
the Services by Affiliate or Affiliate Subscriber for other than the specific
purpose for which the Services were designed.

6.4  Remedy for Breach: For any breach of the warranties contained in this
Paragraph, Affiliate's exclusive remedy, and MicroStrategy's entire liability,
shall be, at MicroStrategy's sole discretion, the correction of errors that
cause breach of the warranty or replacement of such Services with substitute
Services.
<PAGE>

7.   LIMITATION OF LIABILITY.  IN NO EVENT WILL MICROSTRATEGY'S LIABILITY
ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE USE OR PERFORMANCE OF THE
CONTENT OR SERVICES EXCEED $1,000,000.  MICROSTRATEGY WILL NOT BE LIABLE, UNDER
ANY THEORY OF LIABILITY INCLUDING BREACH OF CONTRACT, WARRANTY, TORT, OR
OTHERWISE, FOR ANY COSTS OF PROCUREMENT OF SUBSTITUTE PRODUCTS OR SERVICES OR
FOR ANY LOSS OF USE, INTERRUPTION OF BUSINESS, OR INDIRECT, SPECIAL, INCIDENTAL,
RELIANCE OR CONSEQUENTIAL DAMAGES OF ANY KIND. THESE LIMITATIONS SHALL APPLY
NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY AND
REGARDLESS OF WHETHER MICROSTRATEGY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.  The provisions of this Agreement allocate the risks between
MicroStrategy and Affiliate.  MicroStrategy's pricing reflects this allocation
of risk and the limitation of liability.

8.   INDEMNITY.
     ---------

8.1  Affiliate Indemnification: Affiliate shall indemnify and hold
MicroStrategy, and its affiliates and their respective officers, directors and
employees harmless from all settlements agreed to by Affiliate and all damages
and costs (including reasonable attorneys' fees) arising out of or relating to:
(a) any activities of Affiliate, including, without limitation, any activities
that constitute an infringement of any third-party copyright, patent or
trademark; (b) any misrepresentation or breach of representation or warranty of
Affiliate contained herein; or (c) any breach of any covenant or agreement to be
performed by Affiliate hereunder.

8.2  MicroStrategy Indemnification: MicroStrategy shall indemnify and hold
Affiliate and its respective officers, directors and employees harmless from all
settlements agreed to by MicroStrategy and all damages and costs (including
reasonable attorneys' fees) arising out of or relating to: (a) any
misrepresentation or breach of any representation or warranty of MicroStrategy
contained herein; (b) any breach of any covenant or agreement to be performed by
MicroStrategy hereunder; or (c) claims that the Services infringe any third
person copyright, patent or trademark; provided, that (i) the relevant claim
does not arise from any modification to the Services made by Affiliate or any
subscriber, or (ii) the relevant claim is not based on any Procured Content.  In
the event that any such claim of infringement is asserted against Affiliate
based on any Procured Content, MicroStrategy's sole liability will be to assert
against the provider of such Procured Content any rights of indemnity it may
have with respect to such claim and Affiliate will be entitled to the benefits
of such indemnity.  MicroStrategy commits to use reasonable commercial efforts
to seek indemnification clauses protecting MicroStrategy and its licensees
(including Affiliate) in its agreements for Procured Content.

8.3  Conditions for Indemnification: The obligations under this paragraph are
subject to the following conditions: (a) a Party seeking indemnification
pursuant to this paragraph (an "Indemnified Party") will give prompt notice to
the Party from whom indemnification is sought (the "Indemnifying Party"); (b)
the Indemnifying Party has sole control of the settlement, compromise,
negotiation and defense of any such action and (c) the Indemnified Party gives
all reasonably available cooperation, information, assistance and authority, at
the Indemnified
<PAGE>

Party's reasonable expense, to enable the Indemnifying Party to do so.  To the
extent that a conflict of interest precludes counsel of the Indemnifying Party
from representing both Parties, the Indemnified Party may assume its own defense
but the cost of such defense shall be borne by the Indemnified Party.

9.   PROTECTION OF PROPRIETARY MATERIAL AND INTELLECTUAL PROPERTY
     ------------------------------------------------------------

9.1  Proprietary Material: "Proprietary Material" shall mean any information or
data, in written, graphic or machine readable form which by its nature or type
should reasonably be considered proprietary or confidential or which the
disclosing party labels as being proprietary or confidential, provided, however,
that "Proprietary Material" does not include:

(i)  Information which is or becomes available in the public domain other than
     through disclosure by the receiving party (the "Recipient") in breach of
     this Agreement;

(ii) Information disclosed or made available at any time to the Recipient by a
     third party without restriction and without breach of any relationship of
     confidentiality to the party having rights to such information (the
     "Discloser");

(iii)Information independently developed by the Recipient where the Recipient
     establishes that such development was accomplished without use of the
     confidential information of the Discloser;

(iv) Information which was already known to the Recipient, without an obligation
     of confidentiality to the Discloser, at the time of disclosure hereunder.

9.2  Use of  Proprietary  Material.  Each  party  acknowledges  and  agrees that
Proprietary Material of the Discloser is confidential and constitutes a valuable
asset  of the  Discloser  or (as  applicable)  of  the  Discloser's  third-party
licensor.  The  Recipient  shall  not use any of the other  party's  Proprietary
Material for any purpose not  specifically  authorized in this Agreement,  shall
hold such Proprietary Material in strict confidence, and shall not disclose such
Proprietary Material to any third party.

9.3  Access to  Proprietary  Material. Each party will limit access to the other
party's Proprietary  Material to those employees and Authorized  Contractors (as
defined  below) whose use of or access  thereto is necessary to the  Recipient's
authorized  use of such  Proprietary  Material.  Each party has  entered or will
enter into  appropriate  written  agreements with its Authorized  Contractors to
prevent  the  unauthorized  use,  disclosure  or  copying  of the other  party's
Proprietary  Material and shall take all  reasonable  precautions to protect and
maintain  the  confidentiality  of such  Proprietary  Material,  including  at a
minimum,  those  precautions  which the  Recipient  employs to  protect  its own
confidential  information,  but not less than a reasonable  degree of care. Each
party shall bear the  responsibility  for any breach of  confidentiality  by its
employees, contractors and consultants.

9.4  Authorized Contractor. "Authorized Contractor" shall mean each of a party's
contractors and consultants whose access to the Proprietary Material is required
for Recipient's authorized use of such Proprietary Material and with whom a
<PAGE>

party has executed a written  agreement  which  prevents the  unauthorized  use,
disclosure or copying of the Proprietary Materials;  provided,  however, that in
no event  shall any  Competitor  be  permitted  to be an  Authorized  Contractor
hereunder  even if such person or entity is a consultant  to or  contractor of a
party.  For  Affiliate,  "Competitor"  means any person or entity that develops,
markets or licenses campaign management software.

9.5  Reverse  Engineering and Third Party Access. Each party agrees not to cause
or permit the reverse  engineering,  reverse assembly or reverse  compilation of
the other's  Proprietary  Material for any purpose,  or to otherwise  attempt to
derive source code from the other's Proprietary Material.  Each party agrees not
to use, or allow any third party to use, any  Proprietary  Material of the other
party to aid in the  development  and/or  marketing of any product similar to or
competitive with the other party's Proprietary Material. The Recipient shall not
disclose,  publish, display or otherwise make available to any person any of the
other party's  Proprietary  Material or copies thereof without the express prior
written consent of the Discloser.

9.6 Copying and Proprietary  Rights. The Recipient shall not duplicate,  copy or
reproduce any of the other party's Proprietary  Material,  except with the prior
written  consent of such party or as otherwise  permitted  under this Agreement.
All  title,  copyright  and other  proprietary  rights  to all of a  Discloser's
Proprietary  Material,  including  all  furnished by to the Recipient and in all
copies  made by the  Recipient,  shall  be  retained  by such  Discloser  or (as
applicable)  by its third  party  licensor.  Neither  party shall use any of the
other's Proprietary Material to create works that are based on the other party's
Proprietary Material.

9.7  Injunctive  Relief. Each party recognizes and acknowledges that irreparable
damage might result to the other if Proprietary  Material is improperly  used or
disclosed  by  the  Recipient.   Accordingly,   each  party  agrees  that  legal
proceedings  at  law  or  in  equity,  including  injunctive  relief,  shall  be
appropriate in the event of a breach of this Section of the Agreement.

9.8  Disclosure Required by Law. Nothing herein shall prevent the Recipient from
disclosing  all or part of the other party's  Proprietary  Material as necessary
pursuant to the lawful  requirement of a governmental  agency or when disclosure
is required by operation of law;  provided that prior  requirement  to disclose,
and (ii) cooperate  reasonably with the Discloser in protecting against any such
disclosure or obtaining a protective order.

9.9  Survival.  Each party's  rights and  obligations  under this Section shall
survive any termination of this Agreement.
<PAGE>

9.10 Intellectual Property: Affiliate has paid no consideration for the use of
MicroStrategy's trademarks or copyrights, and nothing contained in this
Agreement will give Affiliate any right, title or interest in any of them except
as provided for herein.  Affiliate acknowledges that MicroStrategy owns and
retains all trademarks, copyrights and other proprietary rights in the Services,
and agrees that it will not at any time during or after this Agreement assert
any interest in or do anything that may adversely affect the validity of any
trademark or copyright owned by or licensed to MicroStrategy.  Affiliate
acknowledges that the Services consist of factual information gathered, selected
and arranged by MicroStrategy and its content providers by special methods and
at considerable expense; that all titles, formats and other descriptive headings
associated with the Services are the sole property of MicroStrategy and its
content providers; that MicroStrategy owns all rights in the data relating to
Affiliate Subscribers collected by MicroStrategy, and that Affiliate shall not
sell or otherwise dispose of or distribute the Services to any third party.
Upon notice thereof, Affiliate will act promptly to prevent any breach or
continuation of a breach by a subscriber of the provisions of this Agreement, or
its subscriber agreements, such action to include termination of services, if
required by MicroStrategy.

9.11 Termination and Proprietary Material: Upon expiration or termination of
this Agreement, Affiliate will immediately cease all display, advertising and
use of the Services, all MicroStrategy trademarks, trade names, logos or
designations and will not thereafter use, advertise or display an trademark,
trade name, logo or designation which is, or any part of which is, similar to or
confusable with any trademark, trade name, logo or designation associated with
any MicroStrategy product or service.  In addition, Affiliate will cease all use
of the subscription data associated with Affiliate Subscribers and return all
such data to MicroStrategy within ten (10) days of termination.

9.4

10.  TERM & TERMINATION.
     -------------------

10.1 Term: This Agreement shall become effective on the Effective Date and
shall continue in effect for a period of twenty four (24) months (the "Initial
Term").  This Agreement shall thereafter renew for subsequent twelve (12) month
terms unless it is terminated by either party with ninety (90) days written
notice prior to the end of any term.  This Agreement may also be terminated in
any of the following ways:

10.2 MicroStrategy   Termination  with  Cure  Period:  This  Agreement  may  be
terminated by  MicroStrategy at any time in the event Affiliate fails to pay any
fee due  hereunder  within  sixty  (60)  days  following  the date of  notice of
nonpayment or in the event that  Affiliate  commits any other  material  default
hereunder,  including,  without  limitation,  a breach of  confidentiality  or a
violation of MicroStrategy's intellectual property rights, which Affiliate fails
to remedy  within ten (10) days after  having  been  notified  in writing of the
default.

10.3 Affiliate Termination with Cure Period: This Agreement may be terminated by
Affiliate  at any time in the event  MicroStrategy  fails to pay any royalty due
hereunder  within sixty (60) days  following the date of notice of nonpayment or
in the event that MicroStrategy commits a material default hereunder (such as
<PAGE>

a breach of confidentiality) which MicroStrategy fails to remedy within ten (10)
days after having been notified in writing of the default.

10.4 Immediate Termination for Cause: Either Party may terminate this Agreement
at any time without prior notice if. (a) a receiver is appointed for the other
Party or any of its property, the other Party makes an assignment for the
benefit of its creditors; any proceedings are commenced by, for or against the
other Party under any bankruptcy, insolvency or debtor's relief law; or the
other Party is liquidated or dissolved or (b) the other Party is in material
breach of any other written agreement between the Parties.

10.5 Survival: Paragraphs and subparagraphs 5.5, 6, 7, 8, 9, 10.5, 11, 12, 13,
16, and 17 of this Agreement shall survive the termination or expiration of this
Agreement for any reason.

11.  CONTACTS OR NOTICES.
     --------------------

11.1 Notice Requirements: All notices, demands or communications required or
permitted hereunder shall be in writing, delivered personally or by facsimile,
certified, registered or express mail (postage prepaid) at the respective
addresses set forth below (or at such other addresses as shall be given in
writing by either Party to the other).  All notices, requests, demands or
communications shall be deemed effective upon personal delivery or on the
calendar day following the date of the telex, telegram, or electronic mail or
when received if sent by registered, certified or express mail.

11.2 Contacts:  Contacts with  MicroStrategy  regarding this Agreement  shall be
made with:  Director  of  Contracts,  MicroStrategy  Incorporated,  8000  Towers
Crescent Drive, Vienna, Virginia 22182, Phone: 703-848-8657, Fax: 703-848-8748

Contact with Affiliate regarding this Agreement shall be made with the Affiliate
representative named below:

     Affiliate:



12.  INDEPENDENT CONTRACTOR. MicroStrategy's relationship to Affiliate in the
performance of this Agreement shall be that of an independent contractor, as
that term is understood generally at common law.  Affiliate's relationship to
MicroStrategy in the performance of this Agreement shall be that of sales agent.

13.  APPLICABLE LAW. This Agreement shall be interpreted, construed and governed
by the laws of the Commonwealth of Virginia, without regard to its conflict of
laws provisions.
<PAGE>

14.  FORCE MAJEURE. MicroStrategy shall not be liable for any delay or failure
under this Agreement if such delay or failure is due to any cause beyond the
control of MicroStrategy, including, without limitation, restrictions of law or
regulations, labor disputes, acts of God or mechanical or electronic breakdowns.
MicroStrategy's obligations hereunder are subject to MicroStrategy's ability to
obtain and maintain any and all governmental licenses, permits or other
authorizations, and MicroStrategy's ability to comply with any and all laws,
regulations, orders and other governmental directives which may be imposed on
the Services or on MicroStrategy with respect to the Services.

15.  ARBITRATION. Any dispute arising out of or related to this Agreement, which
cannot be resolved by negotiation, shall be settled by binding arbitration in
accordance with the American Arbitration Association as amended by this
Agreement.  The costs of arbitration, including the fees and expenses of the
Arbitrator, shall be shared equally by the Parties unless the arbitration award
provides otherwise.  Each Party shall bear the cost of preparing and presenting
its case.  The Parties agree that this provision and the Arbitrator's authority
to grant relief shall be subject to the United States Arbitration Act, 9 U.S.C.
1-16 et seq. ("USAA"), the provisions of this Agreement, and the ABA-AAA code of
Ethics for Arbitrators in Commercial Disputes.  In no event shall the Arbitrator
have the authority to make any award that provides for punitive or exemplary
damages.  The Arbitrator's decision shall follow the plain meaning of the
relevant documents, and shall be final and binding.  The award may be confirmed
and enforced in any court of competent jurisdiction.  All post-award proceedings
shall be governed by the USAA.

16.  ASSIGNMENT. Either Party may assign this agreement to any entity who
acquires all or substantially all of the assets or stock of the Party.
MicroStrategy shall also have the right to assign this Agreement, or assign any
of its rights and/or delegate any of its duties under this Agreement to the
Network or any subsidiary.  In the event of any such assignment or delegation,
such an assignee, the Network or the subsidiary shall be afforded the same
protections as this Agreement affords the assigning Party.

17.  MISCELLANEOUS. Nothing in this Agreement shall be construed to make either
Party an agent, joint venturer or partner of or with the other, and neither
Party shall have the right or authority to legally bind the other in any manner.
This Agreement may be amended only in a writing executed by both Parties.  This
Agreement contains the entire agreement of the Parties with respect to the
subject matter herein, and supersedes all prior and contemporaneous proposals,
discussions, agreements, understandings and communications, whether written or
oral.  The headings and sub-headings in this Agreement are intended only for the
convenience of the reader and should not be used in construing the meaning of
this document.  This Agreement may be signed in counterparts, and each
counterpart shall be a part of the same whole.

IN WITNESS WHEREOF, the Parties have executed this Agreement effective on the
Effective Date.

Exchange Applications, Inc.                     MicroStrategy Incorporated
<PAGE>

By: /s/ Sanju Bansal              By: [Illegible]
   --------------------               -------------------

Name: Sanju Bansal                Name: _________________
     --------------------

Title: COO                        Title: __________________
     --------------------

Date: ____________________        Date: __________________
<PAGE>

                             EXHIBIT L (continued)
                             ---------
<PAGE>

                              RIDER TO STRATEGY.COM
                           AFFILIATE AGREEMENT BETWEEN
                            EXCHANGE APPLICATIONS AND
                           MICROSTRATEGY INCORPORATED

   The Strategy.com Affiliate Agreement between Exchange Applications, Inc.
("Master Affiliate") and MicroStrategy Incorporated ("MicroStrategy"), including
any Exhibits thereto, and dated December 28, 1999 (the "Agreement") is hereby
amended with regard to the following provisions.  All defined terms and
references are to the Agreement.

Master Affiliation:  MicroStrategy grants to Exchange  Applications the right to
become a Master Affiliate. Master Affiliate will receive the royalties set forth
below by  referring  and  actively  assisting  in signing up other  entities  as
Strategy.com affiliates (each a "Referred Affiliate"). MicroStrategy retains the
right to control the terms of affiliation for all new affiliates.

    (a) Referral Process: Master Affiliate will receive Master Affiliate
Royalties (as defined below) when the following conditions are met:

          (i)  Master Affiliate registers the account by submitting a completed
               form to MicroStrategy's Director of Contracts.  The form will
               list the account name, account contacts, description of the
               opportunity and the Master Affiliate contact.
         (ii)  MicroStrategy does not reject the referral within ten (10)
               business days of its receipt of the referral.  MicroStrategy
               retains the right to reject a referral because MicroStrategy is
               already engaging the referral or MicroStrategy is in a position
               where it does not want to, or cannot, do business with the
               referred company.
        (iii)  Master Affiliate undertakes the sales activity.
         (iv)  MicroStrategy is not required to conduct more than three
               executive sales calls or two product demonstrations.
          (v)  an agreement is executed between the Referred Affiliate and
               MicroStrategy within one hundred twenty (120) days of the
               referral registration.

    (b) Master Affiliate Royalties. For the term of the Agreement and pursuant
to subsection (a) of this Rider, for every credited Referred Affiliate,
MicroStrategy will pay Master Affiliate a royalty of forty percent (40%) of the
Licensing Fee actually collected by MicroStrategy from any Referred Affiliate
and fifteen percent (15%) of the Net Royalty Income from the Local Network of
the Referred Affiliate ("Master Affiliate Royalties"). To determine the "Net
Royalty Income" MicroStrategy will determine (i) the Net Revenue associated with
the Local Network of the Referred Affiliate, (ii) subtract the royalty paid the
Referred Affiliate and (iii) multiply the remainder by fifteen percent (15%).
<PAGE>

    (c) Quarterly Reports: MicroStrategy will report and pay its royalty
    obligations under this Rider, pursuant to the Quarterly Reports mandated by
    the Agreement.

    (d) Term of Master Affiliate Royalty Provisions For Any One Referred
    Affiliate. Master Affiliate will receive Master Affiliate Royalties for any
    particular Referred Affiliate for a period of two years, commencing from the
    date when the Referred Affiliate first becomes an affiliate.

     IN WITNESS WHEREOF, the Parties have executed this Agreement effective on
     the Effective Date.

     Exchange Applications, Inc.  MicroStrategy Incorporated

      By:   [Illegible]          By: /s/ Sanju Bansal
           -----------------         -------------------

      Name: ________________     Name: Sanju Bansal
                                      ----------------

      Title: _________________   Title: COO
                                        ---------------

      Date: _________________    Date: ___________________