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                                                                   EXHIBIT 10.6

                        JOINT SOFTWARE LICENSE AGREEMENT

                  This Joint Software License Agreement, dated as of November
14, 2000 (this "Agreement"), is made by and between Dassault Systemes S.A., a
SOCIETE ANONYME organized under the laws of France and the owner of Purchaser
("Dassault Systemes") and/or certain affiliates of Dassault Systemes, and
PlanetCAD Inc. (formerly known as Spatial Technology Inc.), a corporation
organized under the laws of the State of Delaware ("PlanetCAD") (each a
"Party," together, the "Parties").

                                   WITNESSETH:

                  WHEREAS, PlanetCAD, SPATIAL COMPONENTS, LLC and DASSAULT
SYSTEMES CORP. entered into a certain Purchase Agreement, dated July 4, 2000
("Purchase Agreement"), pursuant to which DASSAULT SYSTEMES CORP. acquired
the Component Business (as defined in the Purchase Agreement) from PlanetCAD
and SPATIAL COMPONENTS, LLC, including certain software; and

                  WHEREAS, in connection with the Purchase Agreement and as a
condition to closing the transaction contemplated thereunder PlanetCAD has
agreed to license to Dassault Systemes certain software, all in accordance
with the terms and conditions set forth herein.

                  NOW, THEREFORE, in consideration of the premises and the
mutual agreements and covenants set forth in the Purchase Agreement and in
this Agreement, and intending to be legally bound hereby, the Parties hereby
agree as follows:

1.       DEFINITIONS

         As used in this Agreement, the terms defined in this section shall
have the following respective meanings. Capitalized terms not otherwise
defined herein shall have the same meanings as set forth in the Purchase
Agreement.

AFFILIATE(S) shall mean, with respect to any specified Person, any other
Person that, directly or indirectly, Controls, is Controlled by, or is under
common Control with such Person.

CNDA shall mean the Confidential and Non-Disclosure Agreement among, inter
alia, PlanetCAD and Dassault Systemes executed contemporaneously herewith.

CONTROL, with respect to the relationship between or among two or more
Persons, shall mean the possession, directly or indirectly, or as trustee or
executor, of the power to direct or cause the direction of the affairs or
management of a Person, whether through the ownership of voting securities,
as trustee or executor, by contract or otherwise, including, without
limitation, the ownership, directly or indirectly, of securities having the
power to elect a majority of the board of directors or similar body governing
the affairs of such Person; provided that neither

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PlanetCAD nor Dassault Systemes shall be deemed to be controlled by any other
Person or under common control with any Person that is not one of their
respective subsidiaries.

DERIVATIVE WORK(S), means, related to Software, a work which is based upon in
whole or in part of such Software, such as a revision, enhancement,
modification, translation, abridgment, condensation, expansion, or any other
form in which such Software may be recast, transformed, or adapted, or which,
if prepared without authorization of the owner of the copyright or other
intellectual property right in such Software, would constitute a copyright
infringement or other violation of the intellectual property rights. A
Derivative Work shall also include, without limitation, compilations or
link-edits, improvements, bug fixes, corrections, look and feel changes,
upgrades, updates and new version that incorporate such Software in whole or
in part.

EFFECTIVE DATE means November 14, 2000.

INTELLECTUAL PROPERTY shall mean (a) inventions, whether or not patentable,
whether or not reduced to practice, and whether or not yet made the subject
of a pending patent application or applications, (b) ideas and conceptions of
potentially patentable subject matter, including without limitation, any
patent disclosures whether or not reduced to practice and whether or not yet
made the subject of a pending patent application or applications, (c)
Patents, (d) Trademarks, (e) copyrights (registered or otherwise) and
registrations and applications for registration thereof, all moral rights of
authors therein, and all rights therein provided by international treaties,
conventions or common law, (f) Software, (g) Trade Secrets, and (h) all
rights to sue and recover damages and obtain injunctive relief for past,
present and future infringement, dilution, misappropriation, violation or
breach thereof.

JOINT SOFTWARE shall mean the Software licensed and/or owned by PlanetCAD as
set forth on SCHEDULE A.

LICENSES shall mean the agreements listed on SCHEDULE A pursuant to which
PlanetCAD has acquired rights in the Joint Software.

OBJECT CODE shall mean computer-programming code, substantially or entirely
in binary form, that is directly executable by a computer after suitable
processing, but without the intervening steps of assembly, compilation or
link-edit.

PERSON(S) shall mean any individual or legal entity, including without
limitation, partnership, corporation, association, trust or unincorporated
organization.

RUN-TIME shall designate all software materials and databases that are
necessary to use any Software as well as this Software itself.

SOFTWARE shall mean any computer software program, including
programming-code, on-line documentation, if any, user interface related
thereto or associated therewith, to the extent that such user interface does
exist, and related user and installation documentation other than on-line
documentation associated with this computer software program.

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SOURCE CODE shall mean computer-programming code and related system
documentation, comments and procedural code, that is not directly executable
by a computer but which may be printed out or displayed in a form readable
and understandable by a qualified programmer.

2.       PURPOSE

Subject to the terms and conditions herein, PlanetCAD agrees to license the
Joint Software to Dassault Systemes and to limit its rights in and to such
Software.

3.       OWNERSHIP RIGHTS AND LICENSES IN AND TO THE JOINT SOFTWARE

         3.1      OWNERSHIP AND LICENSES IN AND TO THE JOINT SOFTWARE. PlanetCAD
                  owns and/or is the licensee of certain rights in and to the
                  Joint Software, as described in more detail on SCHEDULE A,
                  attached hereto and incorporated herein by reference.

         3.2      LICENSES TO THE JOINT SOFTWARE. As of the Effective Date and
                  except as provided for in SECTION 9.19, PlanetCAD grants
                  Dassault Systemes the following rights:

                  (i)      A perpetual, worldwide, irrevocable, royalty-free,
                           fully paid-up license to use, distribute and sell the
                           Joint Software that: (i) was created by PlanetCAD,
                           (ii) is owned by PlanetCAD or (iii) was developed by
                           a third party for PlanetCAD as a work made for hire
                           under the copyright laws of the United States; and

                  (ii)     A perpetual, worldwide, irrevocable, royalty-free,
                           fully paid-up license to use, distribute and sell the
                           Joint Software that is licensed to PlanetCAD pursuant
                           to the Licenses.

         3.3      DERIVATIVE WORKS OF THE JOINT SOFTWARE.

                  3.3.1    GRANT OF LICENSE TO DASSAULT SYSTEMES

                  (i)      As of the Effective Date and except as provided for
                           in SECTION 9.19, PlanetCAD grants to Dassault
                           Systemes a perpetual, worldwide, irrevocable,
                           fully-paid, royalty-free license to make Derivative
                           Works of the Source Code of the Joint Software.

                  (ii)     At the end of each quarter, and for five (5) years
                           from the Effective Date, or for a longer period if
                           agreed to by the Parties, in the event that either
                           Party has made any Derivative Work from the Joint
                           Software, such Party shall deliver to the other Party
                           one copy of the Source Code of such Derivative Work,
                           in a sealed and dated envelope, in the form of a
                           CD-ROM, or other appropriate media.

                  (iii)    Such items shall be sent to Dassault Systemes or
                           PlanetCAD, as applicable, by international registered
                           mail to the following address:

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                       IN THE CASE OF PLANETCAD:   PlanetCAD Inc.
                                                   2520 55th Street, Suite 200
                                                   Boulder, Colorado 80301
                                                   Attn. Office of the President

                       IN THE CASE OF DASSAULT     Spatial Corp.
                       SYSTEMES:                   2425 Street, Suite 100
                                                   Boulder, Colorado 80301
                                                   Attn. Mike Payne

                       or may be delivered to either Party by e-mail
                       transmission if agreed to in advance by the receiving
                       Party.

              (iv)     Neither Party shall have an obligation to maintain or
                       support all or part of the Derivative Works of the
                       Joint Software made pursuant to this SECTION 3.3.

              3.3.2    OWNERSHIP OF DERIVATIVE WORKS. The Parties agree that
                       all right, title and interest in and to all or part
                       of the Derivative Works of the Joint Software made by
                       either Party shall be owned exclusively by the Party
                       that developed such Derivative Work. To the extent
                       any assignment is necessary to evidence the intent of
                       this SECTION 3.3.2 and that this assignment cannot be
                       made at present, each Party agrees to assign to the
                       other Party all of its right, title and interest in
                       and to these Derivative Works, and any part thereof,
                       and in and to all copyrights, patents and other
                       proprietary rights they may have in such Derivative
                       Works.

              3.3.3    LICENSE GRANT TO DERIVATIVE WORKS. Effective upon
                       delivery of each Derivative Work as contemplated by
                       SECTION 3.3.1(ii) and subject to the restrictions
                       contained in this Agreement, the developing Party
                       hereby grants to the other Party a perpetual,
                       paid-up, royalty-free, worldwide, irrevocable,
                       non-exclusive license to use, prepare, compile,
                       install, execute, access, reproduce, distribute and
                       sell such Derivative Works of the Joint Software.

     3.4      EXCLUSIVE LICENSE. The licenses set forth in SECTIONS 3.2 AND
              3.3 are exclusive for the benefit of Dassault Systemes for all
              use of the Joint Software as component products (i.e., as
              toolkits designed to be embedded into other software products
              or services). For all other purposes, the licenses granted in
              SECTIONS 3.2 AND 3.3 are non-exclusive as to Dassault
              Systemes.

4.   RESTRICTIONS AND COVENANTS RELATING TO THE JOINT SOFTWARE

     4.1      RESTRICTIONS ON PLANETCAD'S USE OF THE JOINT SOFTWARE.
              PlanetCAD hereby covenants and agrees to the following
              restriction: As of the Effective Date, PlanetCAD will not,
              directly participate in, or direct the participation in, the

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                  development, marketing, distribution, licensing, supporting,
                  sale or re-sale of the Joint Software as component products or
                  component toolkits.

         4.2      COVENANTS OF PLANETCAD RELATING TO THE JOINT SOFTWARE. As of
                  the Effective Date, PlanetCAD covenants and agrees to use its
                  best efforts to secure for Dassault Systemes licenses
                  substantially similar to the Licenses set forth on SCHEDULE A.
                  It is understood that any license secured pursuant to this
                  SECTION 4.2 shall run directly from the third party licensor
                  to Dassault Systemes.

         4.3      EFFECT OF COMPETITION BY DASSAULT SYSTEMES. The Parties hereby
                  agree that in the event that Dassault Systemes develops
                  products that incorporate, use or are based upon the Joint
                  Software and such product offerings directly compete with
                  3Dshare.com, then PlanetCAD may elect to terminate PlanetCAD's
                  obligations of the Parties agreed to by PlanetCAD in SECTIONS
                  3.3.1 (ii), 3.3.1 (iii), 3.3.3 AND 5 HEREOF and the
                  restrictions set forth in SECTION 4.1 shall automatically
                  terminate. In such a case, and only as to the use of the Joint
                  Software, PlanetCAD shall not be bound by the provisions of
                  the non-competition clause provided for in the Purchase
                  Agreement executed on July 4, 2000.

5.       MAINTENANCE AND SUPPORT

         5.1      MAINTENANCE AND SUPPORT FOR THE JOINT SOFTWARE. Commencing on
                  the Effective Date, the Parties shall provide each other with
                  five years maintenance and support, free of charge, as
                  described in the Maintenance and Support Services Schedule
                  (attached hereto as SCHEDULE B and incorporated herein by
                  reference) as may be extended by mutual agreement of the
                  Parties. Upon termination of the obligations set forth in this
                  SECTION 5.1 all obligations of the Parties contained in
                  SECTIONS 3.3.1 (ii), 3.3.1 (iii) AND 3.3.3 shall terminate.

         5.2      SPECIAL SUPPORT OBLIGATIONS OF PLANETCAD. As of the Effective
                  Date, PlanetCAD agrees to provide Dassault Systemes with
                  timely support of the "Husk" versions of the Joint Software
                  identified on SCHEDULE C (attached hereto and incorporated
                  herein by reference) for a two year period. In the event that
                  such support is not sufficient to allow Dassault Systemes to
                  commercialize the Joint Software as component products, and
                  Dassault Systemes clearly identifies the support deficiency to
                  PlanetCAD in writing, PlanetCAD shall have sixty (60) days to
                  cure such deficiency. If such deficiency is not cured by
                  PlanetCAD within such sixty (60) day period and the Parties
                  are unable to work out an alternative solution, PlanetCAD
                  shall then make a one time payment of USD 1,000,000 to
                  Dassault Systemes and shall be relieved of all obligations
                  under this SECTION 5.2. This provision shall automatically
                  terminate upon the second anniversary of the Effective Date.
                  Notwithstanding the foregoing, it is agreed that PlanetCAD
                  will not be required to provide porting of the Joint Software
                  to any platform other than Windows NT. The support obligations
                  set forth in this SECTION 5.2 may not be subcontracted by
                  PlanetCAD, except to Geometric Software (an authorized
                  subcontractor to provide support for Joint Software products),
                  unless Dassault Systemes approves such subcontract(s).

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6.     WARRANTIES AND DISCLAIMER OF WARRANTIES

         6.1      MUTUAL REPRESENTATIONS. Each Party represents and warrants to
                  the other Party that such Party:

                  (i)      Has suitable agreements with its respective employees
                           to meet the confidentiality obligations under this
                           Agreement; and

                  (ii)     Is under no obligation or restriction, and will not
                           assume any obligation or restriction, that would
                           prevent it from performing its obligations under this
                           Agreement.

         6.2      PLANETCAD REPRESENTATIONS. PlanetCAD represents and warrants
                  to Dassault Systemes that it owns and/or has valid licenses in
                  all rights, title and interest in and to the Joint Software.

         6.3      DISCLAIMER OF WARRANTIES. THERE SHALL BE NO WARRANTIES,
                  EXPRESS OR IMPLIED, EXCEPT AS STATED IN THIS SECTION 6,
                  INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
                  MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE, USE, OR
                  REQUIREMENT. EXCEPT AS OTHERWISE EXPRESSLY PROVIDED IN THIS
                  AGREEMENT, ANY INFORMATION OR MATERIALS FURNISHED BY EITHER
                  PARTY TO THE OTHER ARE PROVIDED ON AN "AS IS" BASIS.

7.       LIMITATION OF LIABILITY AND INDEMNIFICATION

         7.1      LIMITATION OF LIABILITY.

                  7.1.1    WITH THE EXCEPTION OF CLAIMS FOR (i) PERSONAL INJURY
                           OR DEATH, (ii) INTELLECTUAL PROPERTY INFRINGEMENT
                           INDEMNIFICATION, AS SET FORTH IN SECTION 7.4, AND
                           (iii) THE CONFIDENTIALITY PROVISIONS SET FORTH IN
                           SECTION 9.1: IN NO EVENT SHALL EITHER PARTY BE LIABLE
                           FOR ANY SPECIAL, EXEMPLARY, INCIDENTAL, INDIRECT, OR
                           CONSEQUENTIAL DAMAGES OF ANY KIND, INCLUDING ANY LOST
                           PROFITS, LOST SAVINGS, LOST STAFF TIME OR OTHER
                           ECONOMIC DAMAGES ARISING OUT OF OR IN CONNECTION WITH
                           THIS AGREEMENT, EVEN IF ADVISED OF THE POSSIBILITY OF
                           SUCH DAMAGES.

                  7.1.2    IN NO EVENT SHALL EITHER PARTY BE LIABLE UNDER THIS
                           AGREEMENT FOR AN AMOUNT GREATER THAN US $30,000.00.

         7.2      DASSAULT SYSTEMES INDEMNIFICATION. Dassault Systemes shall
                  indemnify and hold harmless PlanetCAD, and its officers,
                  directors, employees, agents, representatives and shareholders
                  from and against any claims, demands, suits,

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                  causes of action, losses, damages, judgments, costs and
                  expenses (including reasonable attorneys' fees) arising out
                  of or related to any material breach of Dassault Systemes'
                  representations, warranties and covenants set forth in this
                  Agreement.

         7.3      PLANETCAD INDEMNIFICATION. PlanetCAD shall indemnify and hold
                  harmless Dassault Systemes, its affiliates, and their
                  respective officers, directors, employees, agents,
                  representatives and shareholders from and against any claims,
                  demands, suits, causes of action, losses, damages, judgments,
                  costs and expenses (including reasonable attorneys' fees)
                  arising out of or related to any material breach of
                  PlanetCAD's representations, warranties and covenants set
                  forth in this Agreement.

         7.4      INTELLECTUAL PROPERTY INFRINGEMENT INDEMNIFICATION. Each Party
                  agrees to hold the other Party, its subsidiaries,
                  distributors, assignees and Affiliates, and their respective
                  officers, directors, employees, and shareholders
                  (collectively, the "Indemnities") harmless from and against
                  any claim of any nature, including, but not limited to,
                  administrative, civil or criminal procedures, which is or may
                  be made or raised against a Party's Indemnities by any third
                  party that the use or distribution of the Software that is the
                  subject of this Agreement and owned by the other Party,
                  infringes or violates any third party's patent, copyright,
                  trade secret or other intellectual property right in any
                  country. Indemnification hereunder shall cover all damages,
                  regardless of their nature, settlements, expenses and costs,
                  including costs of investigation, court costs and attorneys'
                  fees, and shall be for a period of seven (7) years from the
                  Effective Date. The payment of any indemnification shall be
                  contingent on:

                  (i)      A Party giving prompt written notice to the other
                           Party of any such claim or allegation;

                  (ii)     Cooperation by the indemnified Party with the other
                           Party in its defense against the claim; and

                  (iii)    The indemnified Parties obtaining the other Party's
                           prior written approval of any settlement, if any, by
                           the indemnified Party of such matters, such approval
                           not to be unreasonably withheld.

                  Notwithstanding the foregoing, neither Party shall have the
                  obligation to indemnify the other for any claims of
                  infringement based on any modification by the latest version
                  of its Software, or from the combination of its Software with
                  any other program, to the extent such claim would not have
                  arisen without such combination or from use of the unmodified
                  Software.

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         7.5      ADDITIONAL REMEDIES. If the operation, distribution or use of
                  any Software that is the subject of this Agreement becomes, or
                  is likely to become, the subject of a claim involving the
                  infringement or other violation of any patent, copyright,
                  trade secret, or other intellectual property rights of any
                  third party, the Parties will jointly determine in good faith
                  what appropriate steps can be agreed upon, with a view towards
                  curing such infringement or other violation, at the Software
                  owner's sole charge. Such steps may include, but are not
                  limited to:

                  (i)      The owner securing the right for the other Party to
                           continue using the Joint Software, or

                  (ii)     The owner replacing or modifying the Software so that
                           it becomes non-infringing.

                  If no other option is reasonably available, the owner of the
                  Software agrees to use its best efforts to withdraw, at its
                  sole expense, the infringing Software from the market.

8.       TERM AND BREACH OF MATERIAL OBLIGATIONS

         8.1      TERM. This Agreement shall come into force as of the Effective
                  Date, and shall remain valid until the expiration of the last
                  copyright or other protection available in any Software herein
                  licensed unless terminated as provided in Section 8.2.

         8.2      BREACH OF MATERIAL OBLIGATIONS. In the event a Party fails to
                  perform any of its material obligations under this Agreement,
                  the non-breaching Party has given written notice to the other
                  Party of such failure to perform, and the breach is not cured
                  within a sixty day period from receipt of the notice, the
                  non-breaching Party may terminate any and all of its
                  obligations to provide maintenance and support, as set forth
                  in SECTION 5, to the breaching Party.

9.     MISCELLANEOUS

         9.1      CONFIDENTIALITY. All communications and information disclosed
                  by one Party to the other Party under this Agreement shall be
                  subject to the terms and conditions of the CNDA.
                  Notwithstanding anything to the contrary in the CNDA, all
                  information relating to the Source Code of the Joint Software
                  and Derivative Works thereof shall be deemed to be
                  Confidential Information under the CNDA even though they are
                  not marked confidential.

       9.2        FREEDOM OF ACTION. Except as otherwise provided, nothing
                  contained in this Agreement shall be construed to limit or
                  impair any right of either Party to enter into similar
                  agreements with other parties, or to develop, acquire, license
                  or market, directly or indirectly, other products or services,
                  competitive with those offered by the other Party.

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       9.3        ADDITIONAL INSTRUMENTS. Notwithstanding termination of this
                  Agreement, the Parties covenant and agree to execute and
                  deliver any additional instruments or documents necessary to
                  carry out the general intent of this Agreement, including
                  without limitation patent assignments or any other assignments
                  necessary to evidence the ownership of Intellectual Property
                  contemplated hereby or any such additional instruments or
                  documents, including such instruments as may be required by
                  the laws of any jurisdiction, now or in effect or hereinafter
                  enacted, that may affect a Party's rights, title or interest,
                  as applicable, in and to any of the software governed hereby.

       9.4        IRREPARABLE INJURY. Each Party acknowledges and agrees that
                  each covenant in this Agreement pertaining to confidential
                  information and ownership of intellectual property is
                  reasonable and necessary to protect and preserve the rights of
                  the other Party in its confidential information and
                  intellectual property, and that any breach by such Party of
                  the terms of this Agreement may result in irreparable injury
                  to the other Party. Each Party, therefore, subject to a claim
                  of laches, estoppel, acquiescence or other delay in seeking
                  relief, consents and agrees that the other Party shall be
                  entitled to seek and obtain a temporary restraining order and
                  a permanent injunction to prevent a breach or contemplated
                  breach of this Agreement and waives any requirement that the
                  other Party post a bond in connection with seeking such
                  injunctive relief.

       9.5        RELATIONSHIP OF THE PARTIES. PlanetCAD and Dassault Systemes
                  are independent contractors, and nothing in this Agreement
                  will create any partnership, joint venture, agency, franchise,
                  sales representative, or employment relationship between the
                  Parties. Neither Party has the authority to act as agent for
                  the other Party or to conduct business in the name of such
                  other Party or make statements, warranties or representations
                  that exceed or are inconsistent with the warranties provided
                  hereunder.

       9.6        NOTICES. All notices required or permitted shall be given in
                  writing, in the English language, and shall be deemed
                  effectively delivered upon personal delivery or three days
                  after deposit with a carrier by registered mail or other
                  equivalent service, postage prepaid, return receipt requested,
                  addressed as follows, or to such other address as either Party
                  may designate to the other:

                  IN THE CASE OF PLANETCAD: PlanetCAD Inc.
                                            2520 55th Street, Suite 200
                                            Boulder, Colorado 80301
                                            Attn. Office of the President

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                  IN THE CASE OF DASSAULT SYSTEMES:

                                                     Dassault Systemes
                                                     9 Quai Marcel Dassault
                                                     92150 Suresnes
                                                     Attn. Thibault De Tersant
                                                     cc: Law Department

       9.7        HEADINGS. The descriptive headings contained in this Agreement
                  are for convenience of reference only and shall not affect in
                  any way the meaning or interpretation of this Agreement.

       9.8        SEVERABILITY. If any term or other provision of this Agreement
                  is deemed invalid, illegal or incapable of being enforced by
                  any law or public policy, all other terms and provisions of
                  this Agreement shall nevertheless remain in full force and
                  effect so long as the economic or legal substance of the
                  transactions contemplated hereby is not affected in any manner
                  materially adverse to any Party.

       9.9        ENTIRE AGREEMENT. This Agreement, together with the Schedules
                  attached hereto, constitutes the entire agreement of the
                  Parties with respect to the subject matter hereof and
                  supersedes all prior agreements and undertakings, both written
                  and oral, between Dassault Systemes and PlanetCAD with respect
                  to the subject matter hereof.

       9.10       AMENDMENT. This Agreement may not be amended or modified
                  except by an instrument in writing signed by, or on behalf of,
                  duly authorized representatives of Dassault Systemes and
                  PlanetCAD.

       9.11       APPLICABLE LAW, VENUE. This Agreement shall be governed by,
                  and construed in accordance with, the Laws of the State of New
                  York, applicable to contracts executed in and to be performed
                  entirely within that state (without regard to the conflicts of
                  Law provisions thereof). This Agreement shall not be governed
                  by the U.N. Convention on Contracts for the International Sale
                  of Goods. The parties hereto hereby (a) submit to the
                  exclusive jurisdiction of any court of competent jurisdiction
                  sitting in the State of Delaware, The City of Wilmington for
                  the purpose of any Action arising out of or relating to this
                  Agreement brought by any party hereto, and (b) agree, to the
                  fullest extent permitted by applicable law, to waive, and not
                  to assert by way of motion, defense, or otherwise, in any such
                  Action, any claim that is not subject personally to the
                  jurisdiction of the above-named courts, that its property is
                  exempt or immune from attachment or execution, that the Action
                  is brought in an inconvenient forum, that the venue of the
                  Action is improper, or that this Agreement may not be enforced
                  in or by any of the above-named courts.

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       9.12       WAIVER OF JURY TRIAL. EACH OF THE PARTIES HERETO HEREBY WAIVES
                  TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW ANY RIGHT IT
                  MAY HAVE TO A TRIAL BY JURY WITH RESPECT TO ANY ACTIONS OR
                  PROCEEDINGS DIRECTLY OR INDIRECTLY ARISING OUT OF, UNDER OR IN
                  CONNECTION WITH THIS AGREEMENT, OR THE TRANSACTIONS
                  CONTEMPLATED HEREUNDER.

       9.13       COUNTERPARTS. This Agreement may be executed in one or more
                  counterparts, each of which when executed shall be deemed to
                  be an original but all of which taken together shall
                  constitute one and the same agreement.

       9.14       NO WAIVER. The failure of either Party to enforce any
                  provision of this Agreement shall not constitute a waiver of
                  the right to subsequently enforce such provision, or any other
                  provision of this Agreement.

       9.15       FORCE MAJEURE. Neither Party shall be held liable for any
                  failure to perform any of its obligations under this Agreement
                  for as long as, and to the extent that such failure is due to
                  an event of force majeure. An event of force majeure shall
                  include general strikes, lockouts, acts of God, acts of war,
                  mobilization of troops, fire, extreme weather, flood, or other
                  natural calamity, embargo, acts of governmental agency,
                  government or any other laws or regulations.

       9.16       EXPENSES. Except as expressly provided for in this Agreement,
                  each Party shall bear its own expenses incurred in connection
                  with this Agreement, including without limitation travel and
                  living expenses incurred by that Party's employees.

       9.17       ASSIGNMENT; SUBCONTRACTING; THIRD PARTY BENEFICIARIES.

                  (a)  This Agreement may be assigned or otherwise transferred
                       by operation of law or otherwise without the express
                       written consent of PlanetCAD and Dassault Systemes, but
                       in such event the assigning Party shall give notice to
                       the non-assigning Party and the non-assigning Party shall
                       have the right to terminate its obligations under
                       SECTIONS 3.3 AND 5 of this Agreement within the 30 day
                       period following receipt of such notice.

                  (b) Either Party may assign or otherwise transfer all or part
                      of this Agreement to any of its Affiliates; PROVIDED THAT
                      no such assignment shall relieve a Party of any of its
                      obligations under this Agreement. In the event there is a
                      change of Control of an Affiliate which terminates its
                      status as an Affiliate of the party to this Agreement, and
                      this Agreement has been assigned to such an Affiliate,
                      this Agreement shall be assigned back to the party within
                      6 months of the effective date of the change of Control.

                  (c) Except as provided in SECTION 5.2, either Party may
                      subcontract services necessary to perform the obligations
                      set forth in this Agreement provided that any and all such
                      subcontractors shall have entered into agreements with the

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                      subcontracting Party sufficient to enable that Party to
                      comply with all terms and conditions of this Agreement.

                  (d) This Agreement shall be binding upon and inure solely to
                      the benefit of the Parties hereto and their permitted
                      assigns, subcontractor or transferee, and nothing herein,
                      express or implied, is intended to or shall confer upon
                      any other person, including, without limitation, any union
                      or any employee or former employee of either Party, any
                      legal or equitable right, benefit or remedy of any nature
                      whatsoever, including, without limitation, any rights of
                      employment for any specified period, under or by reason of
                      this Agreement.

         9.18     TRADEMARKS. Notwithstanding any other provisions of this
                  Agreement, neither Party shall have the right under this
                  Agreement to use the other Party's trademarks or trade names
                  in connection with any product, service, promotion, public
                  announcement, advertisement or other publication, without
                  securing the prior written consent of such other Party.

         9.19     THIRD PARTY LICENSES. Each party is relieved of its
                  obligations, if any, to (i) deliver the Source Code of a
                  product licensed hereunder or (ii) authorize the creation of
                  Derivative Works from Source Code hereunder to the extent that
                  fulfilling such obligations would cause such party to breach
                  any third party license agreement entered into by such party
                  after the Effective Date.

         IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to
be executed in duplicate originals by their duly authorized officers or
representatives.

In Paris, on November, 14 2000

For PlanetCAD Inc.                           For Dassault Systemes

Its: Chief Executive Officer                 Its: Executive Vice President
Name: R. Bruce Morgan                        Name: Thibault de Tersant

Signature:  /s/ R. Bruce Morgan              Signature:  /s/ Thibault de Tersant

                                        12<Page>

                                                                   EXHIBIT 10.7

                       MASTER SOFTWARE RESELLER AGREEMENT
                  FOR ENTERPRISE VERSIONS OF PLANETCAD PRODUCTS

                  This Master Software Reseller Agreement (this "Agreement"),
dated as of November 14, 2000 (the "Effective Date"), is made by and between
Dassault Systemes S.A., a SOCIETE ANONYME organized under the laws of France
and the owner of Purchaser ("Dassault Systemes") and/or certain affiliates of
Dassault Systemes, and PlanetCAD Inc. (formerly known as Spatial Technology
Inc.), a corporation organized under the laws of the State of Delaware
("PlanetCAD") (each a "Party," together, the "Parties").

1.       INTRODUCTION

         1.1. PlanetCAD has rights to certain computer software and related
documentation identified in SCHEDULE B.

         1.2. Dassault Systemes wishes to have certain nonexclusive rights to
market and distribute such software and documentation in a limited territory
and to obtain certain integration services related thereto from PlanetCAD.

2.       DEFINITIONS

AFFILIATE(S) shall mean, with respect to any specified Person, any other
Person that, directly or indirectly, Controls, is Controlled by, or is under
common Control with such Person. As of the date of signature of this
Agreement, the list of Affiliates for each party is specified in SCHEDULE A.

CNDA means the Confidential and Non-Disclosure Agreement among, inter alia,
PlanetCAD and Dassault Systemes executed contemporaneously herewith.

USER means a person who is authorized by a license agreement as specified in
SECTION 3.3 to use a Product for its internal business purposes.

USER LICENSE AGREEMENT means Dassault Systemes' or Dassault Systemes'
distributors' license agreement that contains similar Intellectual Property
Rights protection of PlanetCAD's licensed Product(s) as is generally accepted
as standard practice in the computer industry. Dasault Systemes will provide
a sample of its standard license agreement upon PlanetCAD' s request.

INTELLECTUAL PROPERTY RIGHTS means rights in (a) inventions, whether or not
patentable, whether or not reduced to practice, and whether or not yet made
the subject of a pending patent application or applications, (b) ideas and
conceptions of potentially patentable subject matter, including without
limitation, any patent disclosures whether or not reduced to practice and

                                        1
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whether or not yet made the subject of a pending patent application or
applications, (c) Patents, (d) Trademarks, (e) copyrights (registered or
otherwise) and registrations and applications for registration thereof, all
moral rights of authors therein, and all rights therein provided by
international treaties, conventions or common law, (f) Software, (g) Trade
Secrets,

MARKS means PlanetCAD's trademarks, trade names, service marks, and/or
service names as specified in SCHEDULE B together with such other trademarks,
trade names, service marks and/or service names of PlanetCAD as the Parties
may add subsequently by mutual agreement in writing.

PRODUCT(S) means the object code version of computer software and related
documentation listed on SCHEDULE B, including but not limited to any
modifications or additions provided to Dassault Systemes by PlanetCAD
pursuant to this Agreement or any maintenance or integration services
provided in connection herewith, together with any computer software and
related documentation the Parties may add subsequently by mutual agreement in
writing.

SOURCE CODE means computer-programming code and related system documentation,
comments and procedural code, that is not directly executable by a computer
but which may be printed our or displayed in a form readable and
understandable by a qualified programmer.

TERRITORY means and is limited to the geographic territory described in
SCHEDULE B attached hereto.

3.       APPOINTMENT; LICENSE GRANT

         3.1. APPOINTMENT. Subject to the terms and conditions of this
Agreement, PlanetCAD appoints Dassault Systemes, and Dassault Systemes
accepts such appointment, as an independent, non-exclusive distributor of
Products in and to the Territory. PlanetCAD reserves the rights from time to
time, in its sole discretion and without liability to Dassault Systemes, to
offer and sell any Products in the Territory, directly or through other
distributors and dealers.

         3.2. GRANT OF DISTRIBUTION LICENSE. Subject to the terms of this
Agreement, PlanetCAD grants Dassault Systemes a non-exclusive,
non-transferable license to (i) market, promote, reproduce for distribution,
distribute and sublicense the Product(s) to Users solely for their own
internal business purposes in the Territory during the term of this Agreement
and (ii) use a reasonable number of copies of each of the Products for the
sole purpose of demonstrating the Products, and training to Users. PlanetCAD
further grants to Dassault Systemes the right to sublicense its distribution
rights granted under this SECTION 3.2 to Dassault Systemes group distribution
network and Dassault Systemes Affiliates. The license granted in this SECTION
3.2(ii) shall be subject to the terms and conditions of the User License
Agreement as specified in SECTION 3.3 except that such use is restricted to
demonstration and training purposes. PlanetCAD will deliver to Dassault
Systemes a master copy of the Product(s) promptly after the Effective Date
and a master copy of any updates as required under SECTION 7.3 from which
Dassault Systemes may make all authorized copies pursuant to this Section 3.2.

                                        2
<Page>

         3.3      GRANT OF SOURCE CODE LICENSE. Upon the Effective Date,
                  PlanetCAD grants to Dassault Systemes a fully-paid,
                  royalty-free, non-exclusive, non-transferable, worldwide
                  license:

                  (i)      To use the Source Code of the Product(s) only to
                           support and maintain the Users, directly, should
                           PlanetCAD be in material breach of its maintenance
                           obligations as provided for under EXHIBIT D.
                  (ii)     To distribute Source Code of the Product(s) only to
                           the extent necessary to fulfill any contractual
                           source code escrow obligations of third party
                           agreements relating to the sale and distribution of
                           the Product(s). The distribution right set forth
                           herein is subject to (a) Dassault Systemes giving
                           PlanetCAD reasonable notice of such contractual
                           source code escrow obligations and (b) PlanetCAD's
                           approval, which shall not be unreasonably withheld or
                           delayed.

PlanetCAD agrees to deliver to Dassault Systemes a copy of the Product(s)
Source Code for any delivery of the master CD related to the Product(s). Such
delivery will take place before the initial launching of the Product(s)
distribution and will be made for any update of the Product(s).

         3.3. USER AGREEMENT. Dassault Systemes may not distribute any
Product(s) to any User unless such User is subject to a license agreement
with Dassault Systemes similar to the license agreements Dassault Systemes
uses for similar or like products. Dassault Systemes will promptly provide
PlanetCAD with such license agreement(s) upon PlanetCAD's request.

         3.4. LICENSE RESTRICTIONS. Dassault Systemes will not (i)
disassemble, decompile, or reverse engineer any software that is part of the
Product(s); (ii) copy or otherwise reproduce any Product(s), in whole or in
part, except for making reasonable numbers of back-up copies or as expressly
authorized by this Agreement; (iii) modify the Product in any manner, except
as it may be expressly directed by PlanetCAD in writing or except as provided
otherwise in this Agreement; (iv) use the Product(s) in any manner to provide
service bureau, time sharing, or other computer services to third parties.

However, under this Agreement, Dassault Systemes may authorize the User to
provide ASPs, services or access based on or to the Product(s) to User's
network (such as Affiliates and subcontractors or suppliers) for User's
internal business needs.

         3.5. NATURE OF DISTRIBUTION. To the extent any Product is or
contains software, PlanetCAD will only license the right to use such
Product(s) to Dassault Systemes for license fees, and will not, and does not,
transfer any right, title or interest in such software to Dassault Systemes
nor any User. Use of the terms "sell," "purchase", "license", "price", and
"license fee" in this Agreement will be interpreted in accordance with this
SECTION 3.5.

4.       OBLIGATIONS OF THE PARTIES

         4.1. PLANETCAD'S OBLIGATIONS. In order to assist Dassault Systemes
with performing its obligations under SECTION 4.2, PlanetCAD will:

                                        3
<Page>

                  4.1.1. Deliver to Dassault Systemes a reasonable number of
demonstration copies of each of the Products as PlanetCAD determines in its
discretion;

                  4.1.2. Furnish Dassault Systemes with reasonable
quantities, as shall be determined by PlanetCAD, of its standard information,
marketing literature, brochures, manuals, Product information letters, etc.,
relating to the Products, and sell any additional copies of such materials to
Dassault Systemes at PlanetCAD's direct cost;

                  4.1.3. Provide training to at least one technical or sales
staff of Dassault Systemes free of charge at the PlanetCAD offices, or at a
location determined by PlanetCAD, provided that the amount of training time
will be reasonable and appropriate in PlanetCAD's judgment, all such training
will be in English, and Dassault Systemes will bear all travel and living
expenses for such personnel sent to PlanetCAD for training.

         4.2.     DASSAULT SYSTEMES' OBLIGATIONS.

         Dassault Systemes shall:

                  4.2.1. Use its commercially reasonable efforts to
advertise, market, promote, and distribute the Products in the Territory in
accordance with this Agreement. From time to time, the Parties agree to
communicate regarding reasonable marketing and advertising policies.

                  4.2.2. Send at least one of its technical and/or sales
personnel for training on the Product(s) and services to PlanetCAD's offices
or to a location to be determined by the parties, and otherwise train and
maintain a sufficient number of capable technical and sales personnel having
the knowledge and training necessary to (i) inform customers properly
concerning the features and capabilities of the Products and, if necessary,
competitive products; (ii) service and support the Products in accordance
with Dassault Systemes' obligations under this Agreement; and (iii) otherwise
carry out the obligations and responsibilities of Dassault Systemes under
this Agreement;

                  4.2.3. Inform PlanetCAD promptly and in writing of any
facts or opinions regarding suspected Product defects, intellectual property
infringement claims, or customer complaints; and

                  4.2.4. Obtain and maintain all government licenses,
permits, and approvals, which are necessary or advisable for the
implementation of this Agreement, and PlanetCAD will cooperate for that
purpose whenever it is needed.

                  4.2.5 Dassault Systemes will 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
Products, and if any approval with respect to this Agreement, or the
notification or registration thereof, will be required at any time during the
term of this Agreement, with respect to giving legal effect to this Agreement
in the Territory, or with respect to compliance with exchange regulations.

                                        4
<Page>

         4.3. DASSAULT SYSTEMES COVENANTS. Dassault Systemes will: (i)
conduct business in a manner that reflects favorably at all times on the
Products and the good name, good will and reputation of PlanetCAD; (ii) avoid
deceptive, misleading or unethical practices that are or might be detrimental
to PlanetCAD, the Products or the public; (iii) make no false or misleading
representations with regard to PlanetCAD or the Products; (iv) not publish or
employ, or cooperate in the publication or employment of, any misleading or
deceptive advertising material with regard to PlanetCAD or the Products; and
(v) make no representations, warranties or guarantees to customers or to the
trade with respect to the specifications, features or capabilities of the
Products that are inconsistent with the literature distributed by PlanetCAD.

         4.4. DEMONSTRATIONS. Dassault Systemes will be responsible for
demonstrations and benchmarks of Products to, and evaluations by, its
prospective customers.

         4.5. COSTS AND EXPENSES. Except as expressly provided herein or
agreed to in writing each party shall bear its own costs and expenses
incurred in the performance of its obligations under this Agreement, unless
Dassault Systemes expressly requests PlanetCAD to assist in supporting a
customer. In such case, Dassault Systemes will be responsible for payment of
PlanetCAD's direct costs for such support up to an amount agreed to in
writing prior to providing the support.

5.       PAYMENTS

         5.1. FEES. Dassault Systemes will pay PlanetCAD the ongoing
non-refundable amounts set forth in SCHEDULE C for Dassault Systemes'
distribution and sublicensing of the Products, and for PlanetCAD's provision
of maintenance services under SECTION 7. All shipping or other transportation
charges for delivery of the Products to Dassault Systemes, including
insurance and special packaging, will also be paid by Dassault Systemes.

         5.2.     PAYMENT TERMS; TAXES.

                  5.2.1. Dassault Systemes will make all payments to
PlanetCAD due under this Agreement in accordance with SCHEDULE C. Payments
made under this Agreement after their due date will incur interest at a rate
equal to 1.5% per month or the highest rate permitted by applicable law,
whichever is lower.

                  5.2.2 All payments under this Agreement will be made in
United States currency by bank-to-bank wire transfer to an account designated
by PlanetCAD, unless otherwise agreed to by PlanetCAD in writing.

         5.3.     INCREASES AND DECREASES.

                  5.3.1 EXISTING CUSTOMERS. For existing customers, PlanetCAD
                  may increase the published list price of the Product(s) up to
                  the amount of 5 % or up to the rate of inflation (based on the
                  consumer price index), whichever is greater, limited to once
                  per year. Such price increases shall be effective ninety (90)
                  days after PlanetCAD provides written notice.

                                        5
<Page>

                  5.3.2 NEW CUSTOMERS. For new customers, PlanetCAD may increase
                  the published list price of the Product(s) from time to time
                  and the amounts specified on Schedule C. Such price increases
                  shall be effective ninety (90) days after PlanetCAD provides
                  written notice.

                  5.3.3 NEW PRICING STRUCTURES. PlanetCAD may introduce new
                  pricing Structures for new customers (i.e., implementing up
                  front license fees in lieu of or as an option to subscription
                  license fees), upon providing thirty (30) days prior written
                  notice.

                  5.3.4 PRICE DECREASES. Price decreases shall take effect
                  thirty (30) days after PlanetCAD provides written notice.

         5.4. NO SETOFF. Dassault Systemes will not setoff or offset against
PlanetCAD's invoices amounts that Dassault Systemes claims are due to it.
Dassault Systemes will bring any claims or causes of action it may have in a
separate action and waives any right it may have to offset, setoff or
withhold payment for Products delivered by PlanetCAD.

6.       REPORTS, RECORDS AND AUDITS

         6.1. REPORTS. Within ten (10) Business Days after the end of each
calendar quarter, Dassault Systemes will deliver to PlanetCAD an itemized
report, subject to adjustment within 30 days of receipt of such report,
setting forth all information reasonably necessary for computation and/or
confirmation of the payments, if any, due or credited to PlanetCAD for such
quarterly period.

         6.2 AUDIT AND REPORTING. Dassault Systemes shall, during and for two
years after the termination of this Agreement, regarding the distribution of
the Products to each User, keep true and accurate records and books of
account containing all particulars which may be necessary for the purpose of
auditing payments to PlanetCAD under this Agreement. During such two year
period, and upon reasonable notice to Dassault Systemes, PlanetCAD shall have
the right to have an audit conducted through a licensed independent
accounting firm, of any billings, collections, and taxes on such itemized
statement, and to examine the records and books of account of Dassault
Systemes in connection therewith. Dassault Systemes will bear the costs of
such audit if a discrepancy or error of computation in an amount greater than
$10,000 in favor of PlanetCAD is identified. Any audit conducted pursuant to
this SECTION 6.2 shall not be conducted in such a manner as to unreasonably
interfere with Dassault Systemes' operations and in no event shall an audit
be conducted more frequently than once a year.

7.       MAINTENANCE, SUPPORT, AND TRAINING

         7.1. In addition to the provisions of SECTION 4.2.2, Dassault
Systemes will be responsible for providing the following support to its
Users: installing the Products as needed; training Users; and providing all
first tier level support to Users.

                                        6
<Page>

         7.2. Except as provided otherwise in this Agreement or in a separate
written agreement, PlanetCAD shall not be responsible for providing direct
support to Users.

         7.3. Subject to receipt of the payments by PlanetCAD for maintenance
specified in SECTION 5.1, PlanetCAD will provide Dassault Systemes with (i)
second tier level support in accordance with the provisions set forth in
SCHEDULE D, (ii) updates and enhancements for the Products in accordance with
the provisions set forth in SCHEDULE D; (iii) access to PlanetCAD's
"hot-line" for inquiries from Dassault Systemes relating to the Products
during PlanetCAD's ordinary business hours

8.       PROPRIETARY RIGHTS

         8.1. PLANETCAD'S OWNERSHIP. The Products are and will remain the
sole and exclusive property of PlanetCAD and its suppliers, if any, whether
the Products are separate or combined with any other products. PlanetCAD's
rights under this SECTION 8.1 will include, but not be limited to: (i) all
copies of the Products, in whole and in part; and (ii) all Intellectual
Property Rights in the Products.

         8.2. PROPRIETARY RIGHTS NOTICES. Dassault Systemes will not delete
or in any manner alter the Intellectual Property Rights notices of PlanetCAD
and its suppliers, if any, appearing on the Products as delivered to Dassault
Systemes. As a condition of the license rights granted to Dassault Systemes
in this Agreement, Dassault Systemes will reproduce and display such notices
on each copy it makes of any Product.

         8.3. THIRD PARTY INFRINGEMENT. Dassault Systemes will report
promptly to PlanetCAD any infringement of such rights of which Dassault
Systemes becomes aware. PlanetCAD reserves the sole and exclusive right at
its discretion to assert claims against third parties for infringement or
misappropriation of its Intellectual Property Rights in the Products.

         8.4. TRADEMARKS.

                  8.4.1. If any advertisement, or other marketing material
used by Dassault Systemes makes any statement as to the technical features or
capabilities of the Products beyond the information provided to Dassault
Systemes by PlanetCAD. Dassault Systemes will first obtain the written
approval of PlanetCAD prior to publishing such advertisement or material.

                  8.4.2. Subject to the terms and conditions of this
Agreement, PlanetCAD grants Dassault Systemes a non-exclusive,
non-transferable license for the term of this Agreement to use the Marks in
Dassault Systemes' marketing of the Products, provided that such use is in
accordance with PlanetCAD's trademark usage guidelines then in effect and as
agreed by the Relationship Managers (see SECTION 15.12). Such use must
reference the Marks as being owned by PlanetCAD and will inure to PlanetCAD's
benefit. Nothing in this Agreement grants Dassault Systemes ownership or any
rights in or to use the Marks, except in accordance with this license. The
rights granted to Dassault Systemes in this license will terminate upon any
termination or expiration of this Agreement. Upon such termination or
expiration, Dassault Systemes will no longer make any use of any Marks.
PlanetCAD will have the exclusive right

                                        7
<Page>

to own, use, hold, apply for registration for, and register the Marks during
the term of, and after the expiration or termination of, this Agreement;
Dassault Systemes will neither take nor authorize any activity inconsistent
with such exclusive right.

9.       WARRANTY

         9.1. POWER AND AUTHORITY. PlanetCAD warrants to Dassault Systemes
that it has sufficient right and authority to grant to Dassault Systemes all
licenses and rights that PlanetCAD grants under this Agreement.

         9.2. LIMITED WARRANTY. PlanetCAD warrants to Dassault Systemes that
during the 6 months following delivery to Dassault Systemes (the "Warranty
Period"): (i) the storage media containing the Products will be free from
defects in materials and workmanship, and (ii) the Products, under normal use
and service, will perform in accordance with the Product documentation in all
material respects. In the event the storage media fails to conform to such
warranty, as Dassault Systemes' sole and exclusive remedy for such failure
PlanetCAD will, at its option and without charge to Dassault Systemes, repair
or replace the Products or storage media, provided the nonconforming item is
returned to PlanetCAD within the Warranty Period. In the event the Product
fails to conform to such warranty, as Dassault Systemes' sole and exclusive
remedy for such failure PlanetCAD will, at its option and without charge to
Dassault Systemes, use reasonable efforts to correct the Product so that it
performs or will perform all of the material functions described in such
documentation, provided PlanetCAD received notice of such nonconformity
within the Warranty Period.

         9.3. DISCLAIMER OF OTHER WARRANTIES. THE WARRANTIES IN THIS SECTION
ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS AND IMPLIED, INCLUDING BUT NOT
LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE.

10.      INDEMNITIES

         10.1. DISTRIBUTION INDEMNITY. Subject to the terms of SECTION 10.2,
Dassault Systemes agrees to indemnify PlanetCAD against any third party
claims against PlanetCAD for loss, damage, liability, or expense (including
but not limited to reasonable attorneys' fees) arising out of any acts or
omissions of Dassault Systemes in connection with their activities under this
Agreement, including but not limited to (i) negligence or other tortious
conduct, or (ii) representations or statements not specifically authorized by
PlanetCAD herein or otherwise in writing.

         10.2.    INFRINGEMENT INDEMNITY.

                  10.2.1. Dassault Systemes agrees that, if the Products or
the operation thereof become, or in PlanetCAD's opinion are likely to become,
the subject of a claim described in this SECTION 10.2, Dassault Systemes will
permit PlanetCAD, at PlanetCAD's option and expense, either to procure the
right for Dassault Systemes to continue marketing and using such Products or
to replace or modify them so that they become noninfringing. If neither of
the foregoing

                                        8
<Page>

alternatives is available on terms that PlanetCAD in its sole discretion
deems reasonable, PlanetCAD may terminate this Agreement and refund to
Dassault Systemes an amount equal to the depreciated License Fees paid by
Dassault Systemes for the infringing Product (calculated on a straight line
basis over a five year life).

                  10.2.2. Notwithstanding the foregoing, PlanetCAD shall not
be liable to Dassault Systemes for (i) any claim arising from Dassault
Systemes' failure to use corrections or enhancements made available by
PlanetCAD or (ii) for any claim based upon the combination, operation or use
of the Products with equipment, data or programming not in accordance with
PlanetCAD documentation and/or specifications or arising from any alteration
or modification of the Products. However, at the time such a claim is brought
against Dassault Systemes, PlanetCAD will conduct a reasonable investigation
to determine if SECTION 10.2.1 applies to the claim.

                  10.2.3. THE FOREGOING ARE PLANETCAD'S SOLE AND EXCLUSIVE
OBLIGATIONS, AND DASSAULT SYSTEMES' SOLE AND EXCLUSIVE REMEDIES, WITH RESPECT
TO INFRINGEMENT OR MISAPPROPRIATION OF INTELLECTUAL PROPERTY RIGHTS.

         10.3. CONTINGENCY. The foregoing indemnities shall be contingent
upon (i) the indemnified Party giving prompt written notice to the other
Party of any claim, demand or action for which indemnity is sought; (ii) the
indemnified Party being given sole control of the defense thereof; and (iii)
the indemnified Party fully cooperating in the defense or settlement of any
such claim, demand or action, at the expense of the indemnifying Party.

11.      LIMITATIONS OF LIABILITY

         IN NO EVENT WILL EITHER PARTY BE LIABLE TO THE OTHER PARTY FOR ANY
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON BREACH OF
CONTRACT, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY, OR OTHERWISE, AND
WHETHER OR NOT SUCH PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
THE TOTAL LIABILITY OF EITHER PARTY UNDER THIS AGREEMENT WILL BE LIMITED TO
THE AMOUNT THAT PLANETCAD HAS RECEIVED PURSUANT TO SECTION 5.1 IN THE TWENTY
FOUR (24) MONTH PERIOD PRECEDING THE CLAIM, EXLUDING CLAIMS UNDER SECTION
10.2. The Parties have agreed that the limitations specified in this SECTION
11 will survive and apply even if any limited remedy specified in this
Agreement is found to have failed of its essential purpose.

12.      TERM AND TERMINATION

         12.1 TERM. The term of this Agreement will begin on the Effective
Date and will continue for three (3) years unless it is terminated earlier in
accordance with the provisions hereof, provided, however, that in no event
will PlanetCAD be required to deliver any copies of the Products to Dassault
Systemes until Dassault Systemes has obtained all necessary

                                        9
<Page>

governmental approvals for this Agreement and for the distribution of the
Products in the Territory. This Agreement shall automatically renew for
additional twelve (12) month periods. In the event a Party elects not to
renew this Agreement, that Party shall provide the other Party notice of such
election six (6) months prior to the expiration of the then current term.

         12.2     EVENT OF TERMINATION.

                  12.2.1 Either party will have the right to terminate this
Agreement if: (i) the other party breaches any material term or condition of
this Agreement and fails to cure such breach within thirty (30) days after
written notice; or (ii) the other party becomes the subject of an involuntary
petition in bankruptcy or any involuntary proceeding relating to insolvency,
receivership, liquidation, or composition for the benefit of creditors, if
such involuntary petition or proceeding is not dismissed within sixty (60)
days of filing, or becomes the subject of a voluntary petition in bankruptcy
or any voluntary proceeding relating to insolvency, receivership,
liquidation, or composition for the benefit of creditors.

                  12.2.2 PlanetCAD may terminate this Agreement, effective
immediately, if: (i) Dassault Systemes should attempt to sell, assign,
delegate or transfer any of its rights and obligations under this Agreement
without having obtained PlanetCAD's prior written consent thereto; or (ii)
Dassault Systemes knowingly makes any false or untrue statements or
representations to PlanetCAD herein or in the performance of its obligations
hereunder.

         12.3     EFFECT OF TERMINATION.

                  12.3.1 Upon termination or expiration of this Agreement:
(i) all license rights granted to Dassault Systemes hereunder will
automatically terminate, except for allowing maintenance and support of Users
up to 18 months after termination; and Dassault Systemes will immediately
cease soliciting orders for Products and will cease all use of the Marks
except as is necessary to effect maintenance and support of the Products(s)
for the 18 months following termination; (ii) within 18 months, return to
PlanetCAD or (at PlanetCAD's request destroy) all copies of the Products and
other Confidential Information (which shall only be used in connection with
providing maintenance and support for the Products) in its possession or
control, and an officer of Dassault Systemes will certify to PlanetCAD in
writing that Dassault Systemes has done so; (iii) all indebtedness of
Dassault Systemes to PlanetCAD shall become immediately due and payable
without further notice or demand, which is hereby expressly waived; and (iv)
all unshipped orders pending at the time of termination will be honored
except in the case of Dassault Systemes' material breach.

                  12.3.2 The rights and obligations of the Parties contained
in Sections 8, 10, 11, 12.3 and 15 will survive the termination or expiration
of this Agreement.

                  12.3.3 Any rights transferred to a User by Dassault
Systemes in accordance with this Agreement will survive termination of this
Agreement.

                                        10
<Page>

         12.4 NO DAMAGES FOR TERMINATION. NEITHER PARTY WILL BE LIABLE TO THE
OTHER FOR DAMAGES OF ANY KIND, INCLUDING INCIDENTAL OR CONSEQUENTIAL DAMAGES,
ON ACCOUNT OF THE TERMINATION OR EXPIRATION OF THIS AGREEMENT IN ACCORDANCE
WITH ITS TERMS. DASSAULT SYSTEMES WAIVES ANY RIGHT IT MAY HAVE TO RECEIVE ANY
COMPENSATION OR REPARATIONS ON TERMINATION OR EXPIRATION OF THIS AGREEMENT
UNDER THE LAW OF THE TERRITORY OR OTHERWISE, OTHER THAN AS EXPRESSLY PROVIDED
IN THIS AGREEMENT. Neither Party will be liable to the other on account of
termination or expiration of this Agreement for reimbursement or damages for
the loss of goodwill, prospective profits or anticipated income, or on
account of any expenditures, investments, leases or commitments made by
either Party or for any other reason whatsoever based upon or growing out of
such termination or expiration.

         12.5 NONEXCLUSIVE REMEDY. The exercise by either Party of any remedy
under this Agreement will be without prejudice to its other remedies under
this Agreement or otherwise.

13.      COMPLIANCE WITH LAW

         Each party agrees to comply with all applicable laws, rules, and
regulations in connection with its activities under this Agreement. Without
limiting the foregoing, Dassault Systemes acknowledges that all Products,
including documentation and other technical data, are subject to export
controls imposed by the U.S. Export Administration Act of 1979, as amended
(the "ACT"), and the regulations promulgated thereunder. PlanetCAD is
responsible for determining the status of the Products under the above
regulations, and Dassault Systemes will not export or re-export (directly or
indirectly) any Products or documentation or other technical data therefor
without complying with the Act and the regulations thereunder.

14.      PRICING FREEDOM

         Dassault Systemes is, and will remain, entirely free to determine
its User prices and fees in its own discretion.

15.      GENERAL

         15.1. CONFIDENTIALITY. All communications and information disclosed
by one Party to the other Party under this Agreement shall be subject to the
terms and conditions of the CNDA. Notwithstanding anything to the contrary in
the CNDA, all information relating to the Products shall be deemed
confidential information under the CNDA even though they are not marked
confidential.

         15.2.    ASSIGNMENT.

                  (a) This Agreement may be assigned or otherwise
transferred, by operation of law or otherwise without the express written
consent of PlanetCAD and Dassault Systemes, but in such event the assigning
Party shall give notice to the non-assigning Party and the non-

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assigning Party shall have the right to terminate its maintenance and support
obligations under this Agreement within the 30-day period following receipt
of such notice.

                  (b) Either Party may assign or otherwise transfer all or
part of this Agreement to any of its Affiliates and for as long as it remains
an Affiliate; provided that no such assignment shall relieve a Party of any
of its obligations under this Agreement. In the event there is a change of
Control of an Affiliate which terminates its status as an Affiliate of the
Party to this Agreement, and this Agreement has been assigned to such an
Affiliate, this Agreement shall be assigned back to the party within 6 months
of the effective date of the change of Control.

                  (c) This Agreement shall be binding upon and inure solely
to the benefit of the Parties hereto and their permitted assigns,
subcontractor or transferee, and nothing herein, express or implied, is
intended to or shall confer upon any other person, including, without
limitation, any union or any employee or former employee of either Party, any
legal or equitable right, benefit or remedy of any nature whatsoever,
including, without limitation, any rights of employment for any specified
period, under or by reason of this Agreement.

         15.3. PRESS RELEASE. The Parties agree to issue a joint press
release announcing the execution of this Agreement within a reasonable delay
of such execution. Thereafter, Dassault Systemes agrees that PlanetCAD may
promote that PlanetCAD is a provider of the technology set forth on SCHEDULE
B to Dassault Systemes and that Dassault Systemes is a reseller of products
of PlanetCAD.

         15.4. APPLICABLE LAW, VENUE. This Agreement shall be governed by,
and construed in accordance with, the Laws of the State of New York,
applicable to contracts executed in and to be performed entirely within that
state (without regard to the conflicts of Law provisions thereof). This
Agreement shall not be governed by the U.N. Convention on Contracts for the
International Sale of Goods. The parties hereto hereby (a) submit to the
exclusive jurisdiction of any court of competent jurisdiction sitting in the
State of Delaware, the City of Wilmington for the purpose of any Action
arising out of or relating to this Agreement brought by any party hereto, and
(b) agree, to the fullest extent permitted by applicable law, to waive, and
not to assert by way of motion, defense, or otherwise, in any such Action,
any claim that is not subject personally to the jurisdiction of the
above-named courts, that its property is exempt or immune from attachment or
execution, that the Action is brought in an inconvenient forum, that the
venue of the Action is improper, or that this Agreement may not be enforced
in or by any of the above-named courts.

         15.5. SEVERABILITY. If any provision of this Agreement is found
invalid or unenforceable, that provision will be enforced to the maximum
extent permissible, and the other provisions of this Agreement will remain in
force.

         15.6. FORCE MAJEURE. Except for payments due hereunder, neither
Party will be responsible for any failure to perform due to causes beyond its
reasonable control (each a "FORCE MAJEURE"), including, but not limited to,
acts of God, war, riot, embargoes, acts of civil or military authorities,
denial of or delays in processing of export license applications, fire,
floods, earthquakes, accidents, strikes, or fuel crises, provided that such
party gives prompt written

                                        12
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notice thereof to the other party. The time for performance will be extended
for a period equal to the duration of the Force Majeure, but in no event
longer than sixty (60) days.

         15.7. NOTICES. All notices under this Agreement will be deemed given
when delivered personally, sent by confirmed facsimile transmission, or sent
by certified or registered U.S. mail or nationally-recognized express
courier, return receipt requested, to the address shown below or as may
otherwise be specified by either Party to the other in accordance with this
section.

         15.8. INDEPENDENT CONTRACTORS. The Parties to this Agreement are
independent contractors. There is no relationship of partnership, joint
venture, employment, franchise, or agency between the Parties. Neither Party
will have the power to bind the other or incur obligations on the other's
behalf without the other's prior written consent.

         15.9. WAIVER. No failure of either Party to exercise or enforce any
of its rights under this Agreement will act as a waiver of such rights.

         15.10. ENTIRE AGREEMENT. This Agreement and its exhibits are the
complete and exclusive agreement between the parties with respect to the
subject matter hereof, superseding and replacing any and all prior
agreements, communications, and understandings (both written and oral)
regarding such subject matter. This Agreement may only be modified, or any
rights under it waived, by a written document executed by both Parties.

                  15.11 THIRD PARTY LICENSE. Each party is relieved of its
obligations, if any, to (i) deliver the Source Code of a product licensed
hereunder or (ii) authorize the creation of Derivative Works or corrections
from Source Code hereunder to the extent that fulfilling such obligations
would cause such party to breach any third party license agreement entered
into by such party after the Effective Date.

         15.12 RELATIONSHIP MANAGERS. Each party will appoint a Relationship
Manager who will be responsible for establishing mutually agreeable pricing
policies, marketing plans and trademarks usage, support request procedures
and sales forecasting and will coordinate customers feedback for product
managers. The Relationship Managers will have regular meeting at least once
per quarter either in person or by phone.

         15.13 WAIVER OF JURY TRIAL. EACH OF THE PARTIES HERETO HEREBY WAIVES
TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW ANY RIGHT IT MAY HAVE TO A
TRIAL BY JURY WITH RESPECT TO ANY ACTIONS OR PROCEEDINGS DIRECTLY OR
INDIRECTLY ARISING OUT OF, UNDER OR IN CONNECTION WITH THIS AGREEMENT, OR THE
TRANSACTIONS CONTEMPLATED HEREUNDER.

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         The parties have caused this Agreement to be executed by their
duly-authorized representatives as of the Effective Date.

DASSAULT SYSTEMES                               PLANETCAD INC.
By:   /s/ Thibault de Tersant                   By:  /s/ R. Bruce Morgan
Name: Thibault de Tersant                       Name: R. Bruce Morgan
Title: Executive Vice President                 Title: Chief Executive Officer

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