SPACETEC IMC CORP
8-K, 1998-06-18
COMPUTER PERIPHERAL EQUIPMENT, NEC
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<PAGE>
 
                       SECURITIES AND EXCHANGE COMMISSION

                            WASHINGTON, D.C.  20549


                                    FORM 8-K

                                 CURRENT REPORT

                       PURSUANT TO SECTION 13 OR 15(D) OF
                      THE SECURITIES EXCHANGE ACT OF 1934

       Date of Report (Date of earliest event reported):    JUNE 5, 1998
                                                            ------------
                                        

                            SPACETEC IMC CORPORATION
             ______________________________________________________
             (Exact name of registrant as specified in its charter)


                                 MASSACHUSETTS
                 ______________________________________________
                 (State or other jurisdiction of incorporation)


       0-27302                                           04-3116697
________________________                            _____________________
(Commission File Number)                            (IRS Employer Id. No.)


   THE BOOTT MILLS, 100 FOOT OF JOHN STREET, LOWELL, MASSACHUSETTS 01852-1126
             _____________________________________________________
             (Address of principal executive offices)   (Zip Code)

              Registrant's telephone number, including area code:

                                 (978) 275-6100
                                 ______________
<PAGE>
 
ITEM 5.  OTHER EVENTS.
         ------------ 

     Spacetec IMC Corporation (the "Company") announced an agreement to transfer
its Open Motion technology to 3D Open Motion, LLC (the "LLC").  The Company's
former CEO and current director, Dennis Gain, will lead the new venture.  Mr.
Gain is majority owner of the LLC.

     Under the terms of the agreement, Spacetec contributed its Open Motion
technology and certain assets having a net book value of approximately $50,000
to the LLC in return for a 20% non-voting interest in the LLC.  Mr. Gain and his
affiliates contributed 291,667 shares of Spacetec common stock to the LLC.
Spacetec has agreed to repurchase these shares from the LLC at a price of
$2.40 per share, which represents a discount of approximately 20% from the fair
market value of the shares on  June 3, 1998, the date on which the parties
agreed to the terms of the joint venture.

     The LLC provided the Company with an option to obtain favorable pricing
for commercial products developed by the LLC at a 50% discount on the most
favorable terms offered to any other customer.  This option becomes exercisable
on January 1, 1999 and expires on May 31, 1999, if not exercised.  To exercise
the option, the Company must pay $250,000 to the LLC.  If the option is
exercised, the Company's favorable pricing terms would extend through June 2003.

 
<PAGE>
 
ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS
         ---------------------------------


(c)    Exhibits.
       ---------
     
     Exhibit No.      Exhibit
     -----------      -------

        99.1           Press Release dated June 9, 1998.  Filed herewith.
 
        99.2           Operating Agreement relating to 3D OPEN MOTION, LLC
                       entered into among Dennis T. Gain, The Gain Family Trust,
                       Spacetec IMC Corporation, and the common shareholders.
                       Filed herewith.
                       
        99.3           Asset Transfer Agreement between 3D OPEN MOTION, LLC and
                       Spacetec IMC Corporation. Filed herewith.
                       
        99.4           Share Purchase Agreement between 3D OPEN MOTION, LLC and
                       Spacetec IMC Corporation. Filed herewith.
<PAGE>
 
                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.



                                           SPACETEC IMC CORPORATION
Dated: June 19, 1998

                                       By: /s/ C. Raymond Boelig
                                           -------------------------------
                                           C. Raymond Boelig
                                           President and Chief Operating Officer

<PAGE>
 
               Exhibit 99.1  --  Press Release dated June 9, 1998
               ------------                                      

              SPACETEC IMC CORPORATION ANNOUNCES AGREEMENT FOR ITS
                'OPEN MOTION' TECHNOLOGY WITH 3D OPENMOTION, LLC

  LOWELL, MA., June 9, 1998 -- Spacetec IMC Corporation (Nasdaq: SIMC), a
leading provider of 3D input controllers and related software, today announced
an agreement to transfer its Open Motion technology to 3D Open Motion, LLC.
Spacetec's founder and former CEO, Dennis Gain, and Dr. Georges Grinstein, a
leading 3D graphics and visualization proponent, will lead the new venture.

  Under terms of the agreement, Spacetec will contribute certain assets
connected with Open Motion in return for an initial 20 percent 1/8preferential
3/8 interest in 3D Open Motion, LLC. Mr. Gain and his affiliates will contribute
291,667 shares of Spacetec common stock to 3D Open Motion. Spacetec will
purchase those shares under the previously announced stock buyback plan at a 20
percent discount to the fair market value of the stock on June 3, 1998, the date
the parties agreed to the terms of the agreement. In connection with this
transaction, approximately four (4) Spacetec employees and one consultant whose
responsibilities related solely to the Open Motion technology will terminate
their affiliation with Spacetec and accept employment with 3D Open Motion, LLC.
Spacetec expects to benefit from a $200,000 quarterly reduction in operating
expense as a result of the transaction.

  Spacetec IMC Corporation has been developing an advanced level of 3D enabling
software referred to as the "Open Motion" body of software technology. Open
Motion is comprised of a platform and graphics independent Application
Programmer's Interface [API] and related specific Software Development Kits
["SDKs"] that will allow faster and easier creation, storage, retrieval, editing
and invoking of 3D motion and 3D interactive motion control capabilities.

  In making the announcement, Ray Boelig, Spacetec's President and Chief
Operating Officer stated, "A fully dedicated and focused software enterprise is
required to bring this early stage, but promising technology to full commercial
release.  Given the resolve we have to focus on our profitable 3D controller and
related enabling software business, the Company chose to accept the opportunity
offered by the new group to undertake this extensive on-going research and
development effort. Apart from our equity in the venture, Spacetec has rights to
receive any newly developed technology applicable to our core business."

  To assure its success in its core business of Workstations, PC Consumer and
the Corporate Desktop markets, Spacetec is actively working with Microsoft and
Intel to embrace industry standards such as the Universal Serial Bus [USB],
Human Interface Devices [HID] and Direct Input. "3D input controllers need to
get into the hands of the masses and following a standards guideline is the most
appropriate direction for Spacetec to achieve this objective. The Company also
is developing what it calls an Enhanced Software Development Kit [ESDK]
featuring 3D interactive motion events and control. The ESDK adds real value to
applications by enhancing their capability in 3D representations and increasing
the market demand / size for 3D input controllers," said Boelig.

  Dennis Gain, President of 3D OpenMotion, stated, "The Open Motion software
technology, when complete, will make it easier and less expensive to incorporate
sophisticated real-life 3D 
<PAGE>
 
capabilities in everyday applications such as games, educational programs,
business applications and the Internet. It also will make it easier for everyone
to use 3D technology. Our new company will be dedicated to commercializing the
Open Motion technology for the volume markets. This will benefit Spacetec by
expanding the demand for its 3D controllers in the broader mass markets."

SPACETEC IMC CORPORATION

  Based in Lowell, Massachusetts, Spacetec IMC Corporation is a leading provider
of interactive input controllers and software technology for use with 3D
graphical applications. The markets served by Spacetec are: Mechanical- CAD,
Design Engineering, Digital Content Creation, Corporate Desktop and Consumer End
Use. Today, its products and technology are used in diverse applications ranging
from designing parts for leading worldwide manufacturers such as Boeing, General
Motors and Honda Motor Company to controlling the navigation of NASA's Sojourner
Rover on Mars from 200 million miles away, as well as allowing computer gamers
to perform extraordinary maneuvers in 3D games.


  (C) Copyright 1998 Spacetec IMC Corporation. All Rights Reserved. Spaceball,
SpaceWare and PowerSensor are registered trademarks of Spacetec IMC Corporation.
All other trademarks are the property of their respective owners.

<PAGE>
 
                       Exhibit 99.2  Operating Agreement
                       ------------                     

                              3D OPEN MOTION, LLC

                              OPERATING AGREEMENT

     OPERATING AGREEMENT ("Agreement") relating to 3D OPEN MOTION, LLC, a
Delaware limited liability company having its initial principal place of
business The Mill, 73 Princeton Street, North Chelmsford, MA 01863 (the
"Company") made and entered into as of June 5, 1998, by and among Dennis T.
Gain, an individual residing at 30 Boren Lane, Boxford, Massachusetts ("Gain" or
"Dennis T. Gain"), as the sole initial Manager of the Company, and Gain and the
Gain Family Trust (the "Trust") as the Series A Preferred Shareholders, Spacetec
IMC Corporation, a Massachusetts corporation ("Spacetec") located at the Boott
Mills, 100 Foot of John Street, Lowell, Massachusetts as the Series B Preferred
Shareholder, and the Persons identified as Common Shareholders on the Share
Ledger attached hereto as the Common Shareholders.

                                    RECITALS

1.   WHEREAS, the Company has been formed as a limited liability company under
the laws of the State of Delaware by the filing on _______________ of the
Certificate of Formation pursuant to the Delaware Limited Liability Company Act;

2.   WHEREAS, Spacetec has been involved in conceiving, designing, researching,
developing and prototyping an advanced level of 3D enabling software designed to
be a platform and graphics independent Application Programmer's Interface
("API") and related specific Software Development Kits ("SDKs") that will allow
faster and easier creation, storage, retrieval, editing and invoking of 3D
motion and 3D interactive motion control capabilities, all as set forth Exhibit
I of the Asset Transfer Agreement between the SIMC and the Company dated as of
the date hereof (the "OpenMotion Technology").

3.   WHEREAS, Spacetec has not as yet brought the OpenMotion Technology to
commercial viability.

4.   WHEREAS, Spacetec has decided to focus its development energies and efforts
on developing and growing its core 3D controller and related software business
and therefore has decided to divest itself of its OpenMotion Technology.

5.   WHEREAS,Gain is willing and desirous of establishing the Company for the
purposes of acquiring the OpenMotion Technology and other intellectual property
and assets from Spacetec, including equipment, furniture and software tools used
in the OpenMotion Technology research and development effort in order to
continue the development and eventual commercialization of such technology.


                                                                   June 17, 1998

                                       1
<PAGE>
 
6.   WHEREAS, Gain is willing to employ or engage at the Company certain current
key staff and consultants of the OpenMotion research and development staff from
Spacetec.

7.   WHEREAS, Spacetec is also willing and agrees to contribute outright the
OpenMotion Technology and certain other assets currently used in the development
of the OpenMotion Technology to the Company for a minority equity interest in
the Company.

8.   WHEREAS, pursuant to a Business Cooperation Agreement between Spacetec and
the Company dated as of the date hereof (the "Business Cooperation Agreement")
the companies have set forth the terms of their business relationship.

9.   WHEREAS, pursuant to a Voting Trust Agreement between the Company, Gain and
certain individuals dated as of the date hereof (the "Voting Trust Agreement"),
Gain, as Voting Trustee, holds all of the Class C Shares of the Company.

                                   AGREEMENT

     Now therefore, in consideration of the foregoing the parties hereby agree
further as follows:

     The Shareholders are entering into this Agreement in order more fully to
set out their respective rights, obligations and duties with respect to the
Company.
                                1.  DEFINITIONS

     1.1  DEFINITIONS. The following terms have the following meanings:

     "Company" means 3D OPEN MOTION, LLC.

     "Company's Initial Business Purpose" means, among other things, the
development, commercialization and marketing of the OpenMotion Technology.

"OpenMotion Technology" refers to the software technology described in
Paragraph 2 of the Recitals to this Agreement.

     The "Initial Directors" shall be Dennis T. Gain and George Grinstein.

     The "Initial President" shall be Dennis T. Gain.

     The "Initial Treasurer" shall be Dennis T. Gain.

     The "Initial Secretary" shall be Dennis T. Gain.

                                                                   June 17, 1998

                                       2
<PAGE>
 
     "Spacetec Shares" means shares of common stock, $.01 par value per share,
of Spacetec IMC Corporation

     1.2  ADDITIONAL DEFINITIONS.  The following terms have the following
meanings:

     "Act" means the Delaware Limited Liability Company Act, as amended from
time to time.

     "Agreement" means this Operating Agreement as it may be amended,
supplemented, or restated from time to time.

     "Bankruptcy" shall have the meaning assigned to such term by the Act.

     "Board" means the Directors acting pursuant to Section 3.3.

     "Capital Account" means, with respect to a Shareholder, such Shareholder's
capital account in the Company maintained in accordance with Section 6.8 of this
Agreement.

     "Capital Contribution" means, with respect to a Shareholder, the agreed
fair market value of any property, and/or the amount of any cash contributed or
to be contributed by the Shareholder to the capital of the Company, as set forth
opposite each Shareholder's name on the Share Ledger (as defined below).

     "Capitalization Description" means the capitalization description set 
forth as Schedule B to this Agreement, as it may be amended from time to time 
         ----------
by the terms of this Agreement.

     "Certificate" means the Certificate of Formation of the Company filed in
accordance with the Act.

     "Change in Control" of the Company means (i) the sale, transfer or other
disposition of all or substantially all of the assets of the Company to a Third
Party Entity, (ii) a merger or consolidation of the Company with a Third Party
Entity, or (iii) a transfer of more than fifty percent (50%) of the outstanding
voting equity of the Company to a Third Party Entity, provided no financing
transaction involving issuance of additional newly authorized securities of the
Company to a Third Party Entity shall constitute a Change in Control.

     "Common Shareholder" means each of the Shareholders identified in the Share
Ledger as holding Series C Common Shares, in each such Shareholder's capacity as
such.

     "Code" means the Internal Revenue Code of 1986, as amended from time to
time, unless otherwise indicated.


                                                                   June 17, 1998

                                       3
<PAGE>
 
     "Director" refers to any one of those Persons elected and serving from time
to time as a Director under the provisions of Section 3.3 of this Agreement.

     "Interest" means the entire ownership interest of a Shareholder in the
Company at any particular time, including the right of the Shareholder to any
and all benefits to which the Shareholder may be entitled as provided in this
Agreement, together with the obligation of the Shareholder to comply with all
the terms and provisions of this Agreement.

     "Majority Board Action" means the affirmative vote of a majority of the
members of the Board present at a meeting at which there is a quorum of the
Board, or a written consent executed by a majority of the members of the Board.
In the case of a tie, the President shall have a casting vote (i.e. shall break
the tie).

     "Majority Series B Action" means the affirmative vote of holders of a
majority of the Series B Preferred Shares present at a meeting at which there is
a quorum of the Voting Shares, or a written consent executed by holders of a
majority of the Series B Preferred Shares.

     "Majority Shareholder Action" means the affirmative vote of holders of a
majority of the Voting Shares present at a meeting at which there is a quorum of
the Voting Shares, or a written consent executed by holders of a majority of the
Voting Shares.

     "Manager" refers to each of those Persons elected and serving, from time to
time, as a Manager of the Company under the provisions of Section 3 of this
Agreement, in each such Person's capacity as a manager of the Company under the
Act.

     "Net Distributable Cash" means, with respect to any fiscal period, the sum
of all cash receipts of the Company from any and all sources, less the sum of
the following expenditures paid out of such cash receipts:


              (i)  payments of rent, insurance, real estate taxes, legal
          expenses, license fees, royalties, commissions, management expenses,
          utilities, repairs and maintenance, accounting and bookkeeping
          services, equipment, supplies, salaries, travel fees, consulting fees,
          advertising and promotion, and any and all other items which are
          customarily considered to be "operating expenses";

            (ii)   payments of interest, principal and other charges with
          respect to any and all loans or other indebtedness of the Company;

            (iii)  all expenses of borrowings by the Company including, without
          limitation, all commitment fees, finder's fees, engagement fees,
          broker's commissions and attorneys' fees;


                                                                   June 17, 1998

                                       4
<PAGE>
 
            (iv)   any amounts used for any purpose in order to satisfy
          conditions to or established in connection with such borrowings;

            (v)    payments made to acquire or in connection with the
          acquisition, improvement, alteration or disposition of property of the
          Company;

            (vi)   payments made in connection with the organization of the
          Company;

            (vii)  any and all funds disbursed or to be disbursed (including
          amounts deducted for adjustments) in connection with or as an expense
          of the sale of property of the Company, including without limitation
          all brokers' fees and attorneys' fees;

            (viii) compensation payable to any Shareholder or Manager, or
          affiliate of either, as provided in Section 3 of this Agreement (to
          the extent not otherwise described in paragraphs (i) through (vii) of
          this definition).

            (ix)   any and all other cash expenditures of the Company, except
          distributions to Shareholders provided for in Section 5 of this
          Agreement;

            (x)    distributions to Shareholders that are required under Section
          5.2(a) of this Agreement ("Tax Distributions"); and less

            (xi)   amounts set aside as additions to reasonable reserves
          established by the President for working capital, contingent
          liabilities or for any of the expenditures described in Subsections
          (i) through (ix) above, or as otherwise deemed by the President as
          reasonably necessary to meet the current and anticipated future
          liabilities, obligations and operating and capital expenditures of the
          Company.

     "Net Loss" means, with respect to any fiscal year of the Company, except as
provided in the sentence next following, the net loss of the Company, if any,
for such year as determined in accordance with the Company's accounting methods.
With respect to the Company's fiscal year or years ending or beginning with or
in the Company's 1998 taxable year, "Net Loss" as hereinabove determined shall
be reduced (or eliminated and a Net Profit created) by the aggregate amount of
expenses allocated to the Series A Preferred Shareholders under Section
5.1(a)(i) or Section 5.1(b)(i) of this Agreement.

     "Net Profit" means, with respect to any fiscal year of the Company, except
as provided in the sentence next following, the net income of the Company, if
any, for such year as determined in accordance with the Company's accounting
methods. With respect to the Company's fiscal year or years ending or beginning
with or in the Company's 1998 


                                                                   June 17, 1998

                                       5
<PAGE>
 
taxable year, "Net Profit" as hereinabove determined shall be increased by the
aggregate amount of expenses allocated to the Series A Preferred Shareholders
under Section 5.1(a)(i) or Section 5.01(b)(i) of this Agreement.

     "Person" means any individual, partnership, corporation, limited liability
company, joint venture, trust, business trust, cooperative, association, or
other entity, and, where the context so permits, the legal representatives,
successors in interest and assigns of such Person.

     "Percentage Interest" means, with respect to a Shareholder, the percentage
assigned to the Interest of that Shareholder, relative to that assigned to the
Interests of all other Shareholders, as determined in the manner set forth in
Section 4.5 of this Agreement.

     "Preferred Return" means, at any point in time, for any Shareholder's
Shares of a particular Preferred Series of Shares, that amount which, when
considered together with all amounts previously distributed (or deemed
distributed) to such Shareholder pursuant to Section 5.2, will result in such
Shareholder having received a cumulative percentage return, compounded annually,
on such Shareholder's Capital Contribution, as set forth with respect to such
Series in the Capitalization Description.

     "Preferred Shareholder" means each Series A Preferred Shareholder and each
Series B Preferred Shareholder.

     "President" refers to the President appointed pursuant to Section 3.4, and
any Person who becomes a substitute or replacement President as permitted by
this Agreement.

     "Series" has the meaning ascribed to such term in Section 4.5 of this
Agreement.

     "Series A Preferred Shareholder" means each of the Shareholders identified
in the Share Ledger as holding Series A Preferred Shares, in each such
Shareholder's capacity as such.

     "Series B Preferred Shareholder" means each of the Shareholders identified
in the Share Ledger as holding Series B Preferred Shares, in each such
Shareholder's capacity as such.

     "Series A Preferred Shares" means Shares having the preferences and other
attributes set forth in the Capitalization Description as pertaining to Series A
Preferred Shares.

     "Series B Preferred Shares" means Shares having the preferences and other
attributes set forth in the Capitalization Description as pertaining to Series B
Preferred Shares.

     "Series C Common Shares" means Shares having the attributes set forth in
the 


                                                                   June 17, 1998

                                       6
<PAGE>
 
Capitalization Description as pertaining to Series C Common Shares.

     "Shareholder" refers to each of the Persons named as a Shareholder in this
Agreement, including the Share Ledger, and any Person who becomes an additional
or substitute Shareholder as permitted by this Agreement and reflected in the
Share Ledger, in each such Person's capacity as a member of the Company under
the Act.

     "Share Certificate" means a certificate evidencing ownership of Shares
issued pursuant to Section 4.5.

     "Share Ledger" means the share ledger set forth as a part of Schedule A
                                                                  ----------
attached to this Agreement, as it may be amended from time to time by the terms
of this Agreement.

     "Shares" means units of Interest in the Company as described in Section 4.5
of this Agreement, including any Series A Preferred Shares, any Series B
Preferred Shares, and any Series C Common Shares.

     "Supermajority Shareholder Action" means the affirmative vote of holders of
at least 66-2/3% of the Voting Shares present at a meeting at which there is a
quorum of the Voting Shares, or a written consent executed by holders of at
least 66-2/3% of the Voting Shares.

     A "Third Party Entity" with respect to a transaction means another Person
except (i) any Person that directly or indirectly controls, is controlled by, or
is under common control with the Company or (ii) any Person which, following the
transaction in question, a majority of the voting equity of which is owned
directly or indirectly by the Voting Shareholders of the Company prior to the
transaction.

     "Voting Shareholder" means each of the Shareholders identified in the Share
Ledger as holding Voting Shares.

     "Voting Share" means any Series A Preferred Share, any Series C Common
Share, and any other Share identified in the Capitalization Description as
having the attribute, "voting."

     "Unanimous Shareholder Action" means the affirmative vote of all holders of
Voting Shares at a meeting at which there is a quorum of the Voting Shares, or a
written consent executed by all holders of Voting Shares.

                       2.  ORGANIZATION; BUSINESS; POWERS

     2.1 ORGANIZATION. The name of the Company shall be 3D OPEN MOTION, LLC. The
Company shall from time to time file or cause to be filed such certificates and
documents as shall be appropriate to comply with the applicable requirements for
the 


                                                                   June 17, 1998

                                       7
<PAGE>
 
existence and operation of the Company as a limited liability company under
the laws of any jurisdiction in which the Company shall conduct business, and
any one or more of the Managers shall have the authority to file or cause to be
filed any such certificate or document. The Company shall have such place or
places of business, within or without the Commonwealth of Massachusetts or State
of Delaware, as the President may from time to time determine. The President may
appoint agents for service of process in all jurisdictions in which the Company
conducts or is qualified to conduct business. The President may from time to
time change the name of the Company, its registered office, or any other matter
described in the Certificate; provided, however, that any required consent of
the Shareholders is obtained if such consent is expressly required by any
provision of this Agreement or by applicable law as a condition to any such
change. The President shall promptly file a certificate of amendment reflecting
any such change to its Certificate.

     2.2 BUSINESS. The purposes of the Company shall be to engage in, to the
extent permitted by law, any lawful business, purpose or activity, including,
without limitation, the Company's Initial Business Purpose. In addition, the
Company may do such other acts and things as are permitted to be done by a
limited liability company in or under the laws of the State of Delaware. The
Company may directly carry on any of its business or activities or may do so as
a joint venturer or partner with any other Person or Persons.

     2.3  POWERS. The Company is hereby authorized to possess and exercise all
the powers and privileges granted to a limited liability company under the Act
or by any other law, and, without limitation on such powers and privileges, the
Company is expressly authorized to:

               (a) Enter into, execute, modify, amend, supplement, acknowledge,
     deliver, perform and carry out contracts of any kind, including contracts
     with any Shareholder or with any Manager.

               (b) Acquire, hold, rent, lease and otherwise operate, construct,
     improve, maintain, finance, sell, transfer, convey, exchange, assign,
     mortgage, pledge, or otherwise deal with or dispose of any real or personal
     property or interests therein.

               (c) Borrow money, guarantee the obligations of others and issue
     evidences of indebtedness, and extend, repay, and renegotiate the terms of
     any such indebtedness, and secure the same by mortgage, assignment, pledge,
     or grant of other security interest on any of the Company's properties.

               (d) Lend, invest and reinvest its funds.

               (e) Bring and defend actions at law or in equity.

               (f) Purchase, cancel or otherwise retire or dispose of the
     Interest of any Shareholder, subject to all other provisions of this
     Agreement.


                                                                   June 17, 1998

                                       8

<PAGE>

               (g) Possess and exercise all lawful powers necessary or
     convenient to effect, or in connection with, any or all of the purposes of
     the Company, and all lawful powers incidental thereto, and to engage in any
     activity necessary or convenient or in connection with the conduct of the
     Company's business or the accomplishment of its purposes.

               (h) Take any other action not prohibited under the Act or other
     applicable law.

      3.  MANAGEMENT; RIGHTS AND OBLIGATIONS OF SHAREHOLDERS AND MANAGERS

      3.1  MANAGEMENT OF THE COMPANY. All decisions respecting any matters
affecting or arising out of the conduct of the business of the Company, or any
matters set forth in this Agreement or relating to the purposes of the Company,
shall, except as otherwise expressly provided in this Agreement or otherwise
required by law, be made exclusively by the Managers, as hereinafter provided.
The Company shall have two classes of Managers, referred to, respectively, as
the Directors and the Officers. The composition, and the respective rights,
authority, powers, and duties of each such class of Manager shall be as
hereinafter set forth. The Directors shall authorize the maintenance of a
company record book to include the Agreement and any amendments thereto and the
minutes of meetings (or consents in lieu of meetings) of Shareholders and
Managers and other important documents of the Company.

     3.2  SHAREHOLDERS.  The Shareholders shall have no voting or management
rights except as expressly provided in this Agreement or as otherwise required
by law.

     3.3  DIRECTORS.  The overall supervision and direction of the business and
affairs of the Company shall be vested in the Directors.


          (a)  Number and Election.  The number of Directors shall initially 
               -------------------
     be two. The number of Directors may be changed at any time by
     Majority Shareholder Action holding a majority of the Voting Shares, but
     shall not be less than one.  The Directors shall be elected by Majority
     Shareholder Action; provided, that from and after the date of this
     Agreement until such time as the Shareholders by Majority Shareholder
     Action elect Directors, the initial Directors shall be the Initial
     Directors. Directors shall serve until their successors are elected and
     qualified, subject to their earlier resignation or removal.

          (b)  Removal.  Directors may be removed at any time by Majority
               -------
     Shareholder Action; provided that the President may only be removed as a
     Director 


                                                                   July 17, 1998

                                       9
<PAGE>
 
     by Unanimous Shareholder Action and the initial President may only
     be removed as President by Unanimous Shareholder Action.

       (c)  Vacancies.  Any vacancy, however occurring, among the Directors may
            ----------                                                         
     be filled by Majority Shareholder Action or, in the absence of such action,
     by Majority Board Action.

     3.4 OFFICERS. The Officers shall consist of a President, a Treasurer, a
Secretary and such other Officers, with such authority, powers, rights, duties
and responsibilities, as specified by Majority Board Action. The Board shall
specify by Majority Board Action a natural person to hold each such office,
except that the initial President shall be the Initial President specified
above, the initial Treasurer shall be the Initial Treasurer specified above and
the initial Secretary shall be the Initial Secretary specified above. The same
person may hold more than one of such positions. Unless prohibited by a
resolution of the Directors, an Officer may, without the approval of the
Directors, delegate some or all of the duties and powers of such Officer's
position as an Officer to one or more other natural persons. Officers shall
serve until their resignation, death or removal. Each Officer serves at the
pleasure of the Board, may resign at any time, and may be removed by Majority
Board Action for any reason, or for no reason, as the Board determines (provided
such right to resign and to remove shall not relieve the Company or the Officer,
as the case may be, of any financial liability in any contract between the
Company and such Officer).

           (a)  President.  The President shall be a Director of the Company.
                --------- 
     President shall have the right, power and full authority to manage,
     conduct, control and operate the Company's business and affairs, and
     generally to exercise the rights and powers specified in this Agreement,
     except to the extent expressly reserved to the Directors or to the
     Shareholders.  Without limitation on the foregoing, the President shall
     have the power and full authority:

               (i)  To lease, license, sell, mortgage, pledge, or otherwise
          transfer for consideration or encumber all or any portion of the
          Company's assets; to consolidate or merge with any business entity, to
          acquire any interest in any business entity, whether in the form of
          stock, assets or otherwise; provided, however, any admission of new
                                      -----------------                      
          Shareholders of the Company in connection with any such transaction
          shall be subject to the provisions of Section 7; and provided,
                                                               ---------
          further, that the President shall not effect a Change in Control of
          -------
          the Company without Supermajority Shareholder Action.

               (ii) To borrow money or otherwise to obtain credit or other
          financial accommodations from, and to cause to be paid on or before
          the due date thereof amounts due and payable by the Company to, any
          Person, including without limitation the President, any other Manager,
          any Shareholder, or any Person related to or affiliated with the
          President, any other Manager or any Shareholder;



                                                                   June 17, 1998

                                       10
<PAGE>
 
              (iii)   To employ such agents, employees, accountants, attorneys,
          brokers, consultants, subcontractors, and other Persons, whether or
          not related to or affiliated with the President, any other Manager or
          any Shareholder, and to pay such fees, expenses, salaries, wages, and
          other compensation to such Persons, and otherwise to agree to such
          terms with such Persons, as the President shall determine to be
          necessary or desirable;

              (iv)   To pay, extend, review, modify, contest, adjust, submit to
          arbitration, prosecute, defend or compromise upon such terms as the
          President may determine, any obligation, suit, liability, cause of
          action or claim, including, without limitation, taxes, charges and
          assessments, either in favor of or against the Company;

              (v)   To purchase or contract to purchase, or to lease, license
          or hire any property, real or person, tangible or intangible, and to
          enter into, carry out and enforce any agreements regarding the use of,
          or affecting or benefiting any such property;

              (vi)   To enter into, execute, amend, supplement, acknowledge and
          deliver any and all contracts, agreements, assignments, licenses,
          deeds, leases, loan agreements, guarantees, notes and other evidences
          of indebtedness, mortgages and other security instruments and
          agreements, and any and all other instruments, documents and
          agreements, as the President may determine to be necessary,
          appropriate or desirable to carry out the purposes of the Company;

               (vii)   To cause to be obtained and continued in force all
          policies of insurance required by any mortgage, lease or other
          agreement to which the Company is a party, and such other additional
          insurance, including, without limitation, key-man life insurance, as
          the President may determine to be necessary, appropriate or desirable
          to carry out the purposes of the Company;

               (viii)   To perform or cause to be performed all of the Company's
          obligations under any agreement to which the Company is a party;

               (ix)   To cause to be paid all amounts determined by the
          President to be due and payable by the Company to any Person;

               (x)   To the extent that funds of the Company are, in the
          President's judgment, not immediately required for the conduct of the
          Company's business, to invest temporarily the excess funds in such
          interim investments 


                                                                   June 17, 1998

                                       11
<PAGE>
 
          as the President may select, including, without limitation,
          obligations of federal, state and local governments or their agencies,
          mutual funds, commercial paper, money-market funds, and bank
          certificates of deposit;

               (xi)   To prosecute, protect and defend or cause to be protected
          and defended all patents, patent rights, copyrights, trade names,
          trademarks and service marks, and all applications with respect
          thereto which may be held by the Company and to take all reasonable
          and necessary actions to protect the secrecy of and the proprietary
          rights with respect to any secret know-how, secret processes, trade
          secrets or other proprietary information, and to prosecute and defend
          all rights of the Company in connection therewith; and

               (ix)   To make donations to the public welfare or for religious,
          charitable, scientific, literary or educational purposes.

          (b) Treasurer.  Unless provided otherwise by a resolution adopted by
              ---------                                                       
     the Directors, the Treasurer shall (i) keep accurate financial records for
     the Company; (ii) deposit all monies, drafts and checks in the name of and
     to the credit of the Company in such banks and depositories as the
     Directors shall designate from time to time; (iii) endorse for deposit all
     notes, checks and drafts received by the Company, making proper vouchers
     therefor; (iv) disburse Company funds and issue checks and drafts in the
     name of the Company, (v) render to the President and the Directors,
     whenever requested, an account of all of such Officer's transactions as
     Treasurer and of the financial condition of the Company; and (vi) perform
     such other duties as may be prescribed by the Directors or the President
     from time to time.

          (c) Secretary.  Unless provided otherwise by Majority Board Action,
              ---------                                                      
     the Secretary shall (i) attend all meetings of the Board and all meetings
     of the Shareholders, and shall record all the proceedings of the meetings
     in the Company Record Book referred to in Section 3.1; (ii) give, or cause
     to be given, notice of all meetings of the Shareholders; (iii) have custody
     of the seal of the Company, if any, and have authority to affix the same to
     any instrument requiring it, and when so affixed, it may be attested by
     his, her or its signature (it being understood that the Board may by
     Majority Board Action give general authority to any other Officer to affix
     the seal of Company and to attest the affixing by his or her signature);
     and (iv) perform such other duties as may be prescribed by the Directors or
     the President from time to time.

          (d)  Authority of President, Treasurer and/or Secretary to Bind the
               --------------------------------------------------------------
     Company. Any action taken by the President as President of the Company, by
     -------                                                                   
     the Treasurer as Treasurer of the Company or by the Secretary as Secretary
     of the Company within the scope of such Officer's duties and
     responsibilities described herein, shall bind the 


                                                                   June 17, 1998

                                       12
<PAGE>
 
     Company and shall be deemed to be the action of the Company. The signature
     of the President, Treasurer and/or Secretary on any agreement, contract,
     instrument or other document shall be sufficient to bind the Company in
     respect thereof and shall conclusively evidence the authority of the
     President, the Treasurer, the Secretary and the Company with respect
     thereto, and no third party need look to any other evidence or require
     joiner or consent of any other party. Only the President, the Treasurer,
     the Secretary and the Company's agents authorized by the President shall
     have the authority to bind the Company.

          (e) Compensation of Officers. The compensation of the Officers shall
              ------------------------
     be fixed from time to time by the Directors; provided, however, that the
     Company and Gain hereby agree that Gain shall not be paid compensation of
     any kind by the Company for a period of one year from the date of this
     Agreement; provided, further, however, that Gain shall be reimbursed for
     all reasonable out-of-pocket business expenses incurred in connection with
     his duties as President of the Company.

     3.5  GENERAL MEETING AND VOTING REQUIREMENTS.

          (a)  Meetings.
               ---------

            (i)  Directors.  Meetings of the Directors may be held at such
                 ----------                                               
     places and at such times as the Directors may from time to time determine
     (or as may be specified by the President or two or more Directors);
     provided, that any Director who is absent when such determination is made
     shall be given notice of the determination in the manner described herein.

            (ii)  Shareholders.  A meeting of Shareholders may be called by 
                  -------------                                             
     the President for any purpose or purposes of addressing any matters on
     which Shareholders may vote. The meeting of Shareholders shall be held at
     such places and at such times as shall be stated in the notice of the
     meeting.

          (b)  Notice of Meetings.  Notice of meetings of the Directors shall
               ------------------                                            
     be given to each Director by the President, or in case of his death,
     absence, incapacity or refusal, by one of the Directors calling the
     meeting.  Notice of meetings of Directors shall be given to each Director
     in person or telephonically or by fax or telegram sent to his business or
     home address at least forty-eight hours in advance of the meeting, or by
     written notice mailed to his business or home address at least five days in
     advance of the meeting.

            Notice of meetings of the Shareholders shall be given to each Voting
     Shareholder by the President or the Secretary.  Notice of meetings of
     Shareholders shall be given to each Voting Shareholder in person or
     telephonically or by mail, fax or telegram sent to his business or home
     address at least seven days in advance of the meeting.


                                                                   June 17, 1998

                                       13
<PAGE>
 
          Notice of a meeting need not be given to any Director or Shareholder
     if a written waiver of notice, executed by the person before or after the
     meeting, is filed with the records of the meeting, or to any person who
     attends the meeting. A notice or waiver of notice of a meeting need not
     specify the purposes of the meeting.

            (c)  Quorum.  At any meeting of the Directors, a majority of the
                 ------                                                     
     Directors shall constitute a quorum.  At any meeting of the Shareholders,
     presence in person or by proxy of holders of a majority of the aggregate
     number of Voting Shares held by all Shareholders shall constitute a quorum.

            (d)  Action at Meeting.  At any meeting of the Directors at which a
                 -----------------                                             
     quorum is present, a majority of the Directors present may take any action
     on behalf of the Directors.  At any meeting of the Shareholders at which a
     quorum is present, holders of a majority of the aggregate number of Voting
     Shares held by those Shareholders present at the meeting may take any
     action on behalf of the Shareholders.

            (e)  Action by Consent.  Any action required or permitted to be
                 -----------------                                         
     taken at any meeting of the Directors may be taken without a meeting, if a
     majority of the Directors consent to the action in writing and the written
     consents are filed with the records of the meetings of Directors.  Any
     action required or permitted to be taken at any meeting of the Shareholders
     may be taken without a meeting, if holders of a majority of the outstanding
     Voting Shares consent to the action in writing and the written consents are
     filed with the records of the meetings of Shareholders. Such a consent
     shall be treated for all purposes as a vote at a meeting.

            (f)  Telephonic Meetings.  Any or all of the Directors may
                 -------------------                                  
     participate in any meeting of the Directors by means of a conference
     telephone or similar communications equipment by means of which all persons
     participating in the meeting can hear each other at the same time.  Any
     Director so participating shall be treated as having been present in person
     at such meeting.

            (g)  Board and Shareholder Proxies. At all meetings of the Board, a
                 -----------------------------                                 
     Board Member may act by proxy executed in writing by the Board Member or by
     his duly authorized attorney-in fact.  At all meetings of Shareholders, a
     Shareholder may vote by proxy executed in writing by the Shareholder or by
     his duly authorized attorney-in fact.  Any such proxy or authorization of
     an attorney in-fact shall be in writing and shall be supplied to the Board
     before or at the time of the meeting.  No proxy shall be valid after three
     months from date of execution, unless otherwise provided in the proxy.


                                                                   June 17, 1998

                                       14
<PAGE>
 
     3.6  CONTRACTS WITH RELATED OR AFFILIATED PERSONS.

          (a)  The Company may enter into agreements, leases, contracts or other
     arrangements for the furnishing to or by the Company of goods, services, or
     property rights with any Officer, Director, Shareholder, or any Person
     related to or affiliated with any of them, and may pay compensation
     thereunder for such goods, services or rights which is reasonably
     comparable to that which would be payable to unrelated and unaffiliated
     Persons under similar circumstances.  If the determination of such amounts
     is made by the President, Treasurer, or Secretary in good faith it shall be
     conclusive absent manifest error.

          (b) Without limitation on any of its powers set forth in Section 2.3
     of this Agreement, the Company is hereby expressly authorized to enter into
     and to perform a Share Contribution Agreement dated concurrently herewith
     (the "Share Contribution Agreement") with Dennis T. Gain and The Gain
     Family Trust (collectively, the "Transferors") pursuant to which the
     Transferors will transfer and assign to the Company the number of Spacetec
     Shares set forth in the Share Contribution Agreement as their respective
     Capital Contributions, in exchange for the number of Series A Preferred
     Shares set forth after each of their names in the Share Ledger.

     3.7  MANAGER'S STANDARD OF CARE.  A Manager's duty of care in the discharge
of the Manager's duties to or on behalf of the Company and the Shareholders
shall be limited to refraining from engaging in grossly negligent or reckless
conduct, intentional misconduct, or a knowing violation of law. A Manager shall
be fully protected in relying in good faith upon the Company's records and upon
such information, opinions, reports or statements by any of the Company's
Shareholders, Managers, employees or agents, or by any other Person as to
matters such Manager reasonably believes are within such other Person's
professional or expert competence and who has been selected in good faith and
with reasonable care by such Manager, or who has been selected by the Directors,
including without limitation information, opinions, reports or statements as to
the value and amount of the assets, liabilities, profits or losses of the
Company.

     3.8  LIMITATION OF LIABILITY OF MANAGER; INDEMNIFICATION.  No Manager shall
be obligated personally for any debt, obligation or liability of the Company or
of any Shareholder, whether arising in contract, tort or otherwise, solely by
reason of being or acting as a Manager of the Company. No Manager shall be
personally liable to the Company or to its Shareholders for acting in good faith
reliance upon the provisions of this Agreement, or for breach of any fiduciary
or other duty that does not involve (i) a breach of the duty of loyalty to the
Company or its Shareholders, (ii) acts or omissions not in good faith or which
involve intentional misconduct or a knowing violation of law; or (iii) a
transaction from 


                                                                   June 17, 1998

                                       15
<PAGE>
 
which the Manager derived an improper personal benefit. Any Manager shall be
entitled to indemnity from the Company for any liability incurred, and for any
act performed within the scope of authority conferred on the Manager by this
Agreement, by reason of his being or related to his status as a Director or an
Officer, unless resulting from such Manager's gross negligence, reckless
conduct, intentional misconduct or wrongdoing or knowing violation of law. Such
indemnification shall include all reasonable expenses incurred and paid,
including reasonable legal and other professional fees and expenses.

     3.9  OTHER BUSINESS INTERESTS.  Subject to the provisions of the Business
Cooperation Agreement, any Manager or Shareholder may have other business
interests and may engage in other activities in addition to those relating to
the Company, whether or not in competition with the business of the Company.
Neither the Company nor any Shareholder shall, by virtue of this Agreement, have
any right to or interest in any such other business interests or activities.
Gain shall use concerted efforts to manage the Company.

     3.10  CONFIDENTIALITY.  Each Shareholder (other than Spacetec) agrees not
to use Confidential Information (as hereinafter defined) of the Company for its
own use or for any purpose except to evaluate and make decisions with respect to
its equity investment in the Company. Each Shareholder(other than Spacetec)
agrees not to disclose such Confidential Information to any third parties or to
any of its employees except employees or third parties who are required to have
the Confidential Information to evaluate such Shareholder's investment;
provided, however, that a Shareholder may report summary financial information
concerning the Company in accordance with requirements of applicable law. For
purposes of this Section, "Confidential Information" means any information,
technical data, or know-how, including, but not limited to, the Company's
research, products, software, services, development, inventions, processes,
designs, drawings, engineering, marketing, or finances, disclosed by the Company
either directly or indirectly in writing, orally or by drawings or inspection of
parts or equipment and which the Company has marked "confidential,"
"proprietary" or "secret" or has otherwise identified as being such.
Confidential Information does not include information, technical data or know-
how which (i) the Shareholder acquired from sources independent of the Company
on a non-confidential basis or developed independent of any information obtained
directly or indirectly from the Company, other than the technology and know how
transferred to the Company in the Asset Transfer Agreement, as demonstrated by
the Shareholder from its files and records immediately prior to the time of
disclosure; or (ii) before or after it has been disclosed to the Shareholder, it
is part of the public knowledge or literature, not as a result of any action or
inaction of the Shareholder; or (iii) is approved for release by written
authorization of Company.

             4.  CAPITAL CONTRIBUTIONS; LIABILITIES OF SHAREHOLDERS

     4.1  CAPITAL CONTRIBUTIONS.  Each Shareholders has made or shall make the
Capital Contribution to the Company of cash or property specified opposite the
Shareholder's name 


                                                                   June 17, 1998

                                       16
<PAGE>
 
in the Share Ledger. Except as set forth on the Share Ledger, no Shareholder or
Manager shall be required to make any contribution to the capital of the
Company.

     4.2  ADDITIONAL CAPITAL CONTRIBUTIONS.  No Shareholder shall be obligated
or required to make any contribution to the Company in addition to the
Shareholder's Capital Contribution referred to in Section 4.1 of this Agreement.

     4.3  LIABILITY OF SHAREHOLDERS.  The liability of each Shareholder to the
Company shall be limited to the Capital Contribution the Shareholder has agreed
to make, as provided in Section 4.1 of this Agreement. No Shareholder shall have
any liability to restore any negative balance in the Shareholder's Capital
Account or to contribute to, or in respect of, the liabilities or the
obligations of the Company, or to restore any amounts distributed from the
Company, except as may be required under the Act or other applicable law. In no
event shall any Shareholder be personally liable for any liabilities or
obligations of the Company.

     4.4  NO WITHDRAWAL OF OR INTEREST ON CAPITAL.  No Shareholder shall have
the right to resign and receive any distribution from the Company as a result of
such resignation, and no Shareholder shall have the right to receive the return
of all or any part of the Shareholder's Capital Contribution or capital account,
or any other distribution, except as expressly provided in this Agreement. No
Shareholder shall have any right to demand and receive property of the Company
in exchange for all or any portion of the Shareholder's Capital Contribution or
capital account, except as expressly provided in this Agreement. No interest
shall accrue or be paid on any Capital Contribution or capital account.

     4.5  SHARES; SHARE CERTIFICATES.  Ownership of Interests in the Company
shall be divided into and represented by Shares. There shall be the following
three classes of Interest in the Company: Series A Preferred Shares, Series B
Preferred Shares, and Series C Common Shares (each, a "Series" of Shares). The
number and Series of Shares owned by each Shareholder shall be as set forth in
the Share Ledger. The Percentage Interest of a Shareholder shall be determined
as of any date by dividing the number of Shares owned by the Shareholder on that
date by the total number of Shares owned by all of the Shareholders on that
date. The President may issue to Shareholders Share Certificates, in such form
as the President directs, certifying the number of Shares owned by the
Shareholder, and retain copies of such certificates in the Record Book, and may
direct a new Share Certificate(s) to be issued in place of any theretofore
issued and alleged to have been lost, stolen or destroyed, upon receipt of an
affidavit of that fact in such form as the President may require. Upon surrender
of a Share Certificate duly endorsed or accompanied by proper evidence of
authority to transfer, the President may, if the transfer of ownership is in
compliance with the provisions of Section 7 and all other terms of this
Agreement, cause the issuance of a new Share Certificate to the Person entitled
thereto, and cancel the old Share Certificate.



                                                                   June 17, 1998

                                       17
<PAGE>
 
                       5.  ALLOCATIONS AND DISTRIBUTIONS

     5.1  ALLOCATION OF NET PROFITS AND LOSSES.  Except as otherwise hereinafter
provided, the Net Profit or the Net Loss, as the case may be, as of the end of
any fiscal year of the Company shall be allocated among the Shareholders as
follows:
               (a) Profits.  For any fiscal year in which the Company has a Net
                   --------                                                    
     Profit, such Net Profit shall be allocated among the Shareholders as
     follows:
                    (i)   With respect to the Company's fiscal year or years
          ending or beginning with or in the Company's 1998 taxable year, there
          shall first be allocated to Gain and The Gain Family Trust, as Series
          A Preferred Shareholders, and in proportion to the number of Series A
          Preferred Shares held by each such Shareholder, all expenses of the
          Company not in excess of Seven Hundred Thousand Dollars ($700,000).

                    (ii)  There shall next be allocated to each Shareholder with
          a deficit in its capital account an amount of the Net Profit
          sufficient to bring its capital account to zero.  If the Net Profit
          shall be insufficient to bring to zero the capital accounts of all
          Shareholders with deficits in their capital accounts, then the Net
          Profit shall be allocated to those Shareholders with deficits in their
          capital accounts in proportion to their respective deficit capital
          account balances.

                    (iii)  Any remaining Net Profit shall next be allocated to
          each of the Shareholders in the same proportions as, and to the extent
          of the amount of any distributions under Section 5.2(c) of Net
          Distributable Cash made to such Shareholder during the fiscal year,
          plus any Net Distributable Cash held on the last day of the fiscal
          year for distribution under Section 5.2(c) to such Shareholder in the
          next succeeding fiscal year.

                    (iii)  The balance, if any, of the Net Profit shall be
          allocated among the Shareholders in proportion to their respective
          Percentage Interests.

               (b) Net Loss.  For any fiscal year in which the Company has a Net
                   ---------                                                    
     Loss, disregarding any allocation under Subparagraph (i) of this Section
     5.1(b), such Net Loss shall be allocated among the Shareholders as follows:

                    (i)  With respect to the Company's fiscal year  or years
          ending or beginning with or in the Company's 1998 taxable year, there
          shall first be allocated to Gain and The Gain Family Trust, as Series
          A Preferred Shareholders, and in proportion to the number of Series A
          Preferred Shares held by each such Shareholder, all expenses of the
          Company not in excess of Seven Hundred Thousand Dollars ($700,000).


                                                                   June 17, 1998

                                       18
<PAGE>
 
                    (ii) There shall next be allocated to each Shareholder with
          a positive capital account an amount of the Net Loss sufficient to
          reduce the Shareholder's capital account to zero.  If the Net Loss
          shall be insufficient to reduce to zero the capital accounts of all
          Shareholders with positive capital accounts, the Net Loss shall be
          allocated to those Shareholders with positive capital accounts in
          proportion to their respective positive capital account balances.

                    (iii)  The balance, if any, of the Net Loss shall be
          allocated among the Shareholders in proportion to their respective
          Percentage Interests.

                    (iv)  Loss Allocation Limitation; Qualified Income Offset.
                          ----------------------------------------------------

                          (A) Notwithstanding the foregoing provisions of this
                    Section 5.1, the amount of Net Loss or expenses for any
                    fiscal year that would otherwise be allocated to a
                    Shareholder shall not cause or increase a deficit balance in
                    such Shareholder's capital account in excess of the amount
                    of exposure of such Shareholder, if any, with respect to
                    debt or other obligations or liabilities of the Company,
                    plus such Shareholder's share of "partnership minimum gain",
                    as such term is defined in Regulation Section 1.704-2(b)(2)
                    under Code Section 704, as of the last day of such fiscal
                    year. To the extent the Net Loss for the fiscal year can not
                    be allocated to any Shareholder owing to the restriction in
                    the foregoing sentence, that amount of Net Loss shall be
                    allocated among the Shareholders in proportion to their
                    respective Percentage Interests.

                         (B)  Notwithstanding the foregoing provisions of this
                    Section 5.1, if, as of the end of any taxable year of the
                    Company, any Shareholder who is not obligated to restore the
                    entire deficit balance in his capital account to the Company
                    (in accordance with paragraphs (b)(2)(ii)(b)(3) and
                    (b)(2)(ii)(c) of Regulation Section 1.704-1 under Code
                    Section 704) unexpectedly receives an adjustment, allocation
                    or distribution described in (4), (5) or (6) of Regulation
                    Section 1.704-l(b)(2)(ii)(d) under Code Section 704 which
                    causes or increases a deficit balance in such Shareholder's
                    capital account (as adjusted in accordance with the sentence
                    next following), then such Shareholder shall be allocated
                    items of income and gain (consisting of a pro rata portion
                    of each item of Company income, including gross income, and
                    gain for such year) in an amount and manner sufficient to
                    eliminate such deficit balance as quickly as possible. For
                    purposes (only) of determining the existence or the amount
                    of a deficit balance in any Shareholder's capital account
                    within the meaning of the 


                                                                   June 17, 1998

                                       19
<PAGE>
 
                    preceding sentence, such Shareholder's capital account shall
                    be reduced by the adjustments, allocations and distributions
                    described in (4), (5) and (6) of Regulation Section 1.704-
                    l(b)(2)(ii)(d) under Code Section 704.
 
                         (C)  Minimum Gain Chargeback  Notwithstanding the
                              -----------------------                     
                    foregoing provisions of this Section 5, if there is a net
                    decrease in "partnership minimum gain," as defined in
                    Paragraph (b)(2) of Regulation Section 1.704-2 under Code
                    Section 704 and as computed in the manner required under
                    said Regulation Section 1.704-2, during any taxable year of
                    the Company, then each Shareholder shall be allocated,
                    before any other allocation is made under this Section 5 for
                    such taxable year, items of income and gain for such year
                    (and, if necessary, subsequent years) equal in amount to
                    such Shareholder's share of any net decrease in partnership
                    minimum gain as determined under Regulation Section 1.704-
                    2(g)(2) under Code Section 704, except to the extent, if at
                    all, that (i) such Shareholder's share of any such net
                    decrease is caused by a guarantee, refinancing, or other
                    change in the debt instrument causing it to become partially
                    or wholly recourse debt or "partner recourse debt" as
                    defined in Paragraph (b)(2) of said Regulation Section 
                    1.704-2, and the Shareholder bears the economic risk of loss
                    (within the meaning of Regulation Section 1.752-2 under Code
                    Section 752) for such converted or refinanced debt; or (ii)
                    the Shareholder contributes capital to the Company that is
                    used to repay the nonrecourse liability or is used to
                    increase the basis of property of the Company that is
                    subject to such liability, and the Shareholder's share of
                    the net decrease in partnership minimum gain results from
                    such repayment or such basis increase. The allocations
                    provided for in this Subparagraph (C) shall be made in
                    accordance with the requirements of Paragraph (j) of said
                    Regulation Section 1.704-2.

                         (D)  Partner Nonrecourse Debt  Notwithstanding the
                              ------------------------                     
                    foregoing provisions of this Section 5, (a) any "partner
                    nonrecourse deductions," as defined in Paragraph (i) of
                    Regulation Section 1.704-2 under Code Section 704,
                    attributable to a "partner nonrecourse liability," as
                    defined in Paragraph (b)(4) of said Regulation Section 
                    1.704-2, and as computed in the manner required under said
                    Regulation Section 1.704-2, shall be allocated to the
                    Shareholder, or to and among the Shareholders, that bear the
                    economic risk of loss for such liability and in the
                    proportions required by Paragraph (i)(1) of said Regulation
                    Section 1.704-2; and (b) if, during any taxable year 



                                                                   June 17, 1998

                                       20
<PAGE>
 
                    of the Company, there is a net decrease in "partner
                    nonrecourse debt minimum gain," as defined in Paragraph
                    (i)(2) of Regulation Section 1.704-2 under Code Section 704
                    and as computed in the manner required under said Regulation
                    Section 1.704-2, any Shareholder with a share, as determined
                    under Paragraph (i)(5) of said Regulation Section 1.704-2,
                    of that partner nonrecourse debt minimum gain, as of the
                    beginning of the year, shall be allocated items of income
                    and gain for the year (and, if necessary, for succeeding
                    years) equal in amount to such Shareholder's share of such
                    net decrease as determined in a manner consistent with the
                    requirements of Paragraph (g)(2) of said Regulation Section
                    1.704-2, to the extent (if at all) that such allocation is
                    required under Paragraph (i)(4) of said Regulation Section
                    1.704-2. The allocations provided for in this Subparagraph
                    (D) shall be made in accordance with the requirements of
                    Paragraphs (j)(1)(i), (j)(1)(iii), (j)(2)(ii) and
                    (j)(2)(iii) of said Regulation 1.704-2, as appropriate.

     5.2  CASH DISTRIBUTIONS.

           (a)  The President shall cause distribution to be made to  Gain
     and The Gain Family Trust, as Series A Preferred Shareholders, on or before
     April 1, 1999, of an amount of cash  which the Company's accountants
     determine is the amount necessary to offset the  federal and state income
     tax liability of  such Series A Preferred Shareholders resulting from or
     attributable to the transfer and assignment to the Company of  Spacetec
     Shares as such Shareholders' Capital Contributions; provided such
     distribution shall in no event be less than $100,000 nor exceed $200,000.
     Any such distribution shall be allocated to and divided between such Series
     A Preferred Shareholders in proportion to the number of Series A Preferred
     Shares held by each.

           (b)  After the distribution specified in Section 5.2(a) is made
     or funds are set aside for such distribution, the  President shall cause
     distributions to be made, on or before April 1 of each calendar year, of an
     amount of cash which the  President shall, with the advice of the Company's
     accountants, determine is a reasonable amount to be distributed to assist
     the Shareholders in paying federal and state income taxes on any income of
     the Company for the Company's fiscal year ending in or with the immediately
     preceding calendar year.  Any such cash distribution ("Tax Distribution")
     shall be allocated to and divided among the Shareholders in proportion to
     their respective distributive shares of the Company's taxable income.

           (c) The President shall also cause distributions to be made of Net
     Distributable Cash at such times, and in such amounts, as the Directors, in
     their sole discretion, from time to time determine. Distributions of Net
     Distributable Cash hereunder shall be allocated to and divided among the
     Shareholders as follows:


                                                                   June 17, 1998

                                       21
<PAGE>
 
               (i) First, until each of the Series A Preferred Shareholders
          and Series B Preferred Shareholders has received, in the aggregate,
          from the current distribution under this Subparagraph (i) and from all
          prior distributions of Net Distributable Cash under this Subparagraph
          (i), an amount equal to  such Preferred Shareholder's Preferred Return
          determined as of the date of any such distribution (any difference
          between such Preferred Return and such aggregate cash distributions
          being hereinafter referred to as the Preferred Shareholder's
          "Preferred Return Deficit"), such distribution shall be allocated to
          and divided among those Preferred Shareholders having Preferred Return
          Deficits.  Cash distributed to Preferred Shareholders under this
          Section  5.2(c)(i)shall be shared among them in the proportions that
          the amount of each such Preferred Shareholder's Preferred Return
          Deficit bears to the  aggregate amount of Preferred Return Deficits of
          all such Preferred Shareholders.

               (ii) Second, until each of the Series A Preferred Shareholders
          and Series B Preferred Shareholders has received, in the aggregate,
          from the current distribution under this Subparagraph (ii) and from
          all prior distributions of Net Distributable Cash under this
          Subparagraph (ii), an amount equal to such Preferred Shareholder's
          Capital Contribution, (any difference between such Capital
          Contribution and such aggregate cash distributions being hereinafter
          referred to as the Preferred Shareholder's "Contribution Deficit"),
          such distribution shall be allocated to and divided among those
          Preferred Shareholders having Contribution Deficits. Cash distributed
          to Preferred Shareholders under this Section 5.2(c)(i) shall be shared
          among them in the proportions that the amount of each such Preferred
          Shareholder's Contribution Deficit bears to the aggregate amount of
          Contribution Deficits of all such Preferred Shareholders.

               (iii) Thereafter, any such distribution shall be allocated to and
          divided among the Shareholders in proportion to their respective
          Percentage Interests.

     5.3  DISTRIBUTIONS UPON DISSOLUTION.  Upon dissolution of the Company,
distributions shall be made as provided in Section 8.3 of this Agreement.

                 6.  BOOKS AND RECORDS; ACCOUNTING; TAX MATTERS

     6.1  BOOKS AND RECORDS.  The books and records of the Company shall be
maintained by the President and made available, in addition to the records and
documents required to be kept under the Act, at the office of the Company. All
such books, records and documents 

                                                                   June 17, 1998

                                       22
<PAGE>
 
shall be available at such office for inspection by any Shareholder or the
Shareholder's authorized representative, at any reasonable time during ordinary
business hours for any purpose reasonably related to the Shareholder's interest
in the Company. Those records and documents required to be kept under the Act
shall be available at such office for inspection and copying by any Shareholder
or the Shareholder's authorized representative, at the reasonable request of and
at the expense of the Shareholder, during ordinary business hours.

     6.2  ACCOUNTING AND FISCAL YEAR.  The books of the Company shall be kept in
accordance with such accounting methods as the President shall determine is
appropriate. The Company's books shall be closed and balanced at the end of each
fiscal year of the Company and at such other times as the President may
determine is appropriate. The fiscal year of the Company shall end on December
31 of each year.

     6.3  REPORTS.  The President shall deliver to each person who was a
Shareholder at any time during the fiscal year then ended the following:


           (a) as soon as practicable but in no event later than the date
     prescribed by applicable law, such information as shall be necessary for
     the preparation by the Shareholder of a federal income tax return, and
     state income or other tax returns with regard to each jurisdiction in which
     the Company does or is qualified to do business;

           (b) within one hundred twenty (120) days after the end of each
     fiscal year of the Company, a statement of assets, liabilities and
     Shareholders' capital, a statement of income and expenses, a statement of
     sources and uses of funds, and a statement of changes in Shareholders'
     capital prepared in accordance with generally accepted accounting
     principles and certified by a firm of independent accountants of recognized
     national standing selected by the Board of Directors.

           (c) within thirty (30) days after the end of each quarter in each
     fiscal year, a statement of assets, liabilities and Shareholders' capital,
     a statement of income and expenses, a statement of sources and uses of
     funds, and a statement of changes in Shareholders' capital prepared in
     accordance with generally accepted accounting principles.

           (d) as soon as practicable but in no event later than prescribed
     by applicable law, such information as shall be necessary for the
     preparation by each Shareholder of a federal income tax return, and state
     income or other tax returns with regard to each jurisdiction in which the
     Company does or is qualified to do business.

                                                                   June 17, 1998

                                       23
<PAGE>
 
     6.4  INTERIM CLOSING OF THE BOOKS.  There shall be an interim closing of
the Company's books of account at any time a tax year of the Company ends under
any provision of the Code, and at such other times as the President may
determine is required by good accounting practice or may be appropriate under
the circumstances.

     6.5  TAX ALLOCATIONS.  The parties intend that the Company will be taxable
as a partnership for United States federal income tax purposes. Except as
otherwise provided below, for federal income tax purposes each Shareholder's
distributive share of income, gain, loss, deduction, credit, recapture or tax
preference (or item thereof) for any fiscal year of the Company shall be
allocated in the same proportion that the item or items of the Company's Net
Profit or Net Loss, depreciation or cost recovery deductions, for such year to
which it corresponds, under applicable federal income tax accounting rules, is
allocated under Section 5.1 of this Agreement (and, if applicable, Section 7.4
of this Agreement). Notwithstanding the foregoing, income, gain, loss and
deduction with respect to property contributed to the Company by a Shareholder
shall be shared among the Shareholders so as to take account of the variation
between the basis of the property to the Company and its fair market value at
the time of contribution, as required by Section 704(c) of the Code and Treasury
Regulations thereunder.

     6.6  TAX DEPRECIATION AND ELECTIONS.  With respect to all depreciable
assets of the Company, the President shall have sole discretion to elect from
time to time to use such depreciation methods for federal tax purposes as the
President may determine is appropriate. The President shall have sole discretion
to make an election under Section 754 of the Code and to make such other tax
elections as the President may from time to time deem necessary or appropriate.

     6.7  TAX MATTERS PARTNER.  The President is hereby designated as the "tax
matters partner," as provided in Treasury Regulations under Section 6231 of the
Code as in effect on the date of this Agreement.

     6.8  SHAREHOLDERS' CAPITAL ACCOUNTS.  The Company shall maintain a separate
capital account for each Shareholder. Each Shareholder's initial capital account
balance shall equal his initial contribution to the capital of the Company, as
reflected on the Share Ledger. Each Shareholder's capital account shall
thereafter be increased by (i) by the amount of money, if any, contributed by
the Shareholder to the Company, (ii) the fair market value of property
contributed by the Shareholder to the Company (net of liabilities secured by
such contributed property that the Company is considered to assume or take
subject to under Section 752 of the Code), and (iii) allocations to the
Shareholder of Company income and gain (or items thereof), including income and
gain exempt from tax and income and gain described in Regulation Section 1.704-
1(b)(2)(iv)(g) under Section 704 of the Code, but excluding income and gain
described in Regulation Section 1.704-1(b)(4)(i) under Section 704 of the Code;
and is decreased by (aa) the amount of money distributed to the Shareholder by
the Company, (bb) the fair market value of property distributed to the
Shareholder by the 

                                                                   June 17, 1998

                                       24
<PAGE>
 
Company (net of liabilities secured by such distributed property that such
Shareholder is considered to assume or take subject to under Section 752 of the
Code), (cc) allocations to the Shareholder of expenditures of the Company
described in Section 705(a)(2)(B) of the Code, and (dd) allocations of Company
loss and deduction (or item thereof), including loss and deduction described in
Regulation Section 1.704-1(b)(2)(iv)(g) under Section 704 of the Code, but
excluding items described in (cc) above and loss or deduction described in
Regulation Section 1.704-1(b)(4)(i) or 1.704-1(b)(4)(iii) under Section 704 of
the Code. In addition, each Shareholder's capital account shall, in the
discretion of the Treasurer, be increased or decreased to reflect a revaluation
of property of the Company (including intangible assets such as goodwill) on the
Company's books in connection with a contribution of money or other property
(other than a de minimis amount) to the Company by a new or existing Shareholder
as consideration for Shares, or in connection with the granting of Shares by the
Company to a new or existing Shareholder in consideration for the performance of
services for the Company (including the vesting of any such Shares which are
subject to vesting), or in connection with the liquidation of the Company or a
distribution of money or other property (other than a de minimis amount) by the
Company to a retiring or continuing Shareholder as consideration for Shares;
provided, that any such adjustment shall be consistent with the requirements of
Regulation Section 1.704-1(b)(2)(iv) under Section 704 of the Code. Any such
adjustments shall be based on the fair market value of the Company's property
(taking into account Section 7701(g) of the Code) on the date of adjustment, and
shall reflect the manner in which the unrealized income, gain, loss, or
deduction inherent in such property (not previously reflected in the
Shareholders' capital accounts) would be allocated among the Shareholders if
there were a taxable disposition of such property for such fair market value on
that date. In the event of any such adjustment, the Shareholders' distributive
shares of depreciation, depletion, amortization, and gain or loss, as computed
for federal income tax purposes, with respect to such property, shall be
determined so as to take account of the variation between the adjusted tax basis
and book value of such property in the same manner as under Section 704(c) of
the Code. Other appropriate adjustments to each Shareholder's capital account
shall also be made from time to time, in accordance with the rules set forth in
Regulation Section 1.704-l(b)(2)(iv) under Section 704 of the Code or the
requirements of any other applicable proposed, final or temporary regulations
thereunder. It is the intent of the Shareholders that the capital accounts shall
be determined and maintained in accordance with said Code Section and said
regulations, and this Section 6.8 shall be construed in a manner consistent
therewith. A Shareholder who has more than one Interest in the Company shall
have a single capital account that reflects all such Interests. No Shareholder
shall be entitled to interest on his capital account.


       7.  TRANSFERS OF SHAREHOLDERS' INTERESTS; ADDITIONAL SHAREHOLDERS

     7.1  RESTRICTIONS ON TRANSFER.  No Shareholder may assign all or any part
of the Share except with the President's written approval, which approval shall
not be unreasonably 

                                                                   June 17, 1998

                                       25
<PAGE>
 
withheld. Any attempt to assign without such approval shall be void and
ineffectual and shall not bind the Company. Further:

            (a) No assignment of any Share may be made other than on the first
     day of a month; and

            (b) The President may require that an assignment of a Share may be
     made only if the assignor or assignee provides an opinion of counsel
     reasonably acceptable to the President that the assignment would not
     require the filing of a registration statement under the Securities Act of
     1933, would otherwise not be in violation of any applicable federal or
     state securities laws (including any investment suitability standards) or
     would not result in the Company's being treated for federal tax purposes as
     anything other than a partnership; and

           (c) No assignment of any Share may be made without Supermajority
     Shareholder Action if the assignment, alone or when combined with other
     transactions, would result in the deemed termination of the Company under
     Section 708 of the Code; and

           (d) Without limiting the discretion of the President, the following
     shall be deemed reasonable reasons for the President to withhold approval
     of an assignment:

                    (i)   the prospective assignee is a competitor or affiliate
          of a competitor of the Company; or

                    (ii)  the prospective assignee's financial condition,
          citizenship, residency or other factors could result in the
          unavailability of exemptions to the Company under the U.S. federal
          securities laws or result in adverse U.S. federal or state tax
          consequences or complications, including loss of prospective tax
          benefits; or

                    (iii) the prospective assignee has been convicted of,
          indicted for (or its procedural equivalent), or entered a guilty plea
          or plea of no contest with respect to, a felony, the equivalent
          thereof, or any other crime with respect to which imprisonment is a
          possible punishment, or the prospective assignee has otherwise
          committed any wrongful action which could have a detrimental effect on
          the Company's reputation or business; or

                    (iv)  the prospective assignor is an employee or consultant
          of the Company.


                                                                   June 17, 1998

                                       26
<PAGE>
 
     7.2  ASSIGNEES AND SUBSTITUTED SHAREHOLDERS.

               (a) Where the President has approved of an assignment of a Share,
     the Company nevertheless need not recognize such assignment for any purpose
     unless there shall have been filed with the Company (i) a duly executed
     counterpart of the instrument making such assignment, signed by both the
     assignor and the assignee and unless such instrument evidences the written
     agreement by the assignee to be bound by all of the terms and provisions of
     this Agreement and represents that such assignment was made in accordance
     with all applicable laws and regulations (including without limitation
     investor suitability) and (ii) an opinion of counsel set forth in 7.1.

               (b) If a Shareholder assigns all of the Shareholder's Shares, the
     Shareholder shall cease to be a Shareholder upon the admission of the
     assignee as a substituted Shareholder in accordance with the provisions of
     this Section 7.2.

               (c) Any assignee of a Share of a Shareholder shall become a
     Shareholder when the President has approved such assignment in accordance
     with 7.1, the books and records of the Company reflect that the assignee
     has been admitted as a Shareholder, the assignee has satisfied all
     conditions to such admission specified in this Agreement, and (unless
     waived by the  President) has paid all reasonable legal fees and filing
     costs of the Company in connection with his admission as a Shareholder.

               (d) In the event an assignee of all or any part of the Shares of
     a Shareholder is admitted as a Shareholder in accordance with the
     provisions of this Section 7.2, the Share Ledger shall be amended to
     reflect (i) such admission, and, if applicable, (ii) the withdrawal of the
     assignor as a Shareholder as provided in Section 7.2(a) of this Agreement,
     and (iii) the resulting new Percentage Interests of the Shareholders.


     7.3  ADMISSION OF SHAREHOLDERS.

               (a)  Admission of Additional Shareholders. A Person may at any 
                    ------------------------------------ 
     time be admitted as a Shareholder with the approval of the President, and
     the number and Series of Shares to be to be issued to such Shareholder,
     Capital Contribution required of any such Shareholder as a condition of
     admission, any other conditions required to be satisfied prior to the
     admission of such Person as a Shareholder, shall be as determined by the
     President. Upon the admission of any additional Shareholder as provided
     herein, the Share Ledger shall be amended in all appropriate respects to
     reflect such admission.

               (b)  Authority to Issue Compensatory Shares and Options.  The
                    --------------------------------------------------      
     Directors by Majority Board Action may award Shares, or grant options to
     purchase Shares, as compensation to any Shareholder or other Person for
     services rendered or to be rendered to the Company, or for any other
     purpose as the Directors determine.  


                                                                   June 17, 1998

                                       27
<PAGE>
 
     The terms and conditions of any such award or grant shall be determined by
     the Directors in their sole discretion. For example, the Directors may
     award Shares subject to vesting at no or nominal cost to employees or
     consultants of the Company, whether or not any such Person is a Shareholder
     at the time of such award. Any Majority Board Action awarding Shares or
     granting options as compensation under the authority of this Subsection (b)
     shall state that such award or grant is compensatory and that it is being
     made under the authority of Subsection 7.3(b) of the Company's Operating
     Agreement.

     7.4  ALLOCATIONS SUBSEQUENT TO TRANSFER.  In the event of the admission or
withdrawal of a Shareholder, or in the event all or any part of the Shares of a
Shareholder is validly transferred as provided in this Section 7, the
distributions and the Net Profit or Net Loss (and each item thereof or
corresponding thereto) shall be further allocated based upon the ownership of
the respective Shares prior to and following the effective date of such
admission or withdrawal in a manner determined by the President to be consistent
with the requirements of Section 706 of the Code and any final, proposed or
temporary Treasury Regulations thereunder.

     7.5  LIMITATION ON ISSUANCES OF SHARES.  Only the series of Shares set
forth in the Capitalization Description may be issued and the total number of
shares of a Series so issued shall not exceed the number of Shares of such
series set forth in the Capitalization Description, it being understood that the
Capitalization Description and this Agreement may be amended by Majority
Shareholder Action, subject to the limitations in Section 10.10.

     7.6  PREEMPTIVE RIGHT.  At the time of any future issuance and sale of
membership interests in the Company pursuant to any future offerings to raise
capital for the Company (the "New Securities"), the Company shall offer to each
Preferred Shareholder by written notice the right, for a period of thirty (30)
days, to purchase for cash at an amount equal to the price or other
consideration for which the New Securities are to be issued, a number of the New
Securities so that, after giving effect to such issuanc e, such Preferred
Shareholder will continue to maintain his same Percentage Interest in the
Company as of the date of such notice (the "Preemptive Right"); provided,
                                                                --------
however, that the Preemptive Right of the Preferred Shareholders shall not apply
- -------
to the New Securities which are (A) Series C Common Shares issued to employees
or consultants of the Company in connection with services they provide to the
Company; (B) issued to pursuant to an acquisition, merger, consolidation or
similar business combination transaction and (C) issued pursuant to a public
offering. The Company's written notice to the Preferred Shareholders shall
describe the New Securities proposed to be issued by the Company and specify the
number, price and payment terms. Each Preferred Shareholder may accept the
Company's offer as to the full number of New Securities offered to it or any
lesser number, by written notice thereof given by it to the Company prior to the
expiration of the aforesaid thirty (30) day period, in which event the Company
shall promptly sell and such Preferred Shareholder shall buy, upon the terms
specified, the number of securities 


                                                                   June 17, 1998

                                       28
<PAGE>
 
agreed to be purchased by such Preferred Shareholder. The Company shall be free
to offer and sell to any third party or parties the number of New Securities not
purchased by any Preferred Shareholder, at a price and on payment terms no less
favorable to the Company than those specified in such notice of offer to the
Preferred Shareholders.

                        8.  DISSOLUTION AND TERMINATION

     8.1  TERM; EVENTS CAUSING DISSOLUTION.  The term of this Agreement shall
commence as of the date the Certificate of Formation is filed in the office of
the Secretary of State of the State of Delaware and shall continue perpetually
until dissolved in accordance with this Section. The existence of the Company as
a separate legal entity shall continue until the cancellation of the Certificate
of Formation. The Company shall be dissolved and its affairs wound up upon:

           (a)  the election to dissolve the Company, which shall require
     Board Majority Action and Supermajority Shareholder Action;

           (b) the withdrawal, removal, incompetence, death, insanity,
     retirement, resignation, expulsion, or Bankruptcy of any Shareholder who is
     also a Manager, unless a majority in interest, as determined under Internal
     Revenue Service Rev. Proc. 94-46, of the remaining Shareholders, within
     ninety (90) days after such event, elect to continue the Company and the
     business of the Company; or

           (c)  the occurrence of an event specified under the laws of the
     State of Delaware as one effecting dissolution, except that where, under
     the terms of this Agreement, the Company is not to terminate, then the
     Company shall be immediately reconstituted and reformed on all the
     applicable terms, conditions, and provisions of this Agreement.

     8.2  PROCEDURES ON DISSOLUTION.  Dissolution of the Company shall be
effective on the day on which the event occurs giving rise to the dissolution,
but the Company shall not terminate until the assets of the Company shall have
been liquidated and distributed as provided in Section 8.3 of this Agreement and
the Company's Certificate shall have been canceled. Notwithstanding the
dissolution of the Company, the business and the affairs of the Company shall be
conducted so as to maintain the continuous operation of the Company under the
provisions of this Agreement. Upon dissolution of the Company, the President or,
if none, a liquidator elected by the written consent of Shareholders having a
majority of the Percentage Interests, shall liquidate the assets of the Company,
apply and distribute the proceeds thereof as provided in Section 8.3 of this
Agreement, and cause the cancellation of the Certificate.

     8.3  LIQUIDATION.  Upon the dissolution of the Company, its affairs shall
be wound up and it shall be liquidated and the proceeds of such liquidation and
the Company's other assets shall be distributed as follows:


                                                                   June 17, 1998

                                       29
<PAGE>
 
               (a) All of the Company's ascertained debts and liabilities to
     creditors shall be promptly paid and discharged in the order provided by
     applicable law.

               (b) A reserve shall be set aside in an amount reasonably required
     to provide for contingent or other liabilities.

               (c) The Company's Net Profit or Net Loss, and depreciation or
     cost recovery deductions shall be computed and shall be allocated to the
     Shareholders in accordance with Section 5 of this Agreement, and the
     Shareholders' capital accounts shall be adjusted in accordance with Section
     6.8 of this Agreement.

               (d)  Distribution shall be made to the Shareholders in accordance
     with the provisions of Section 5.2 of this Agreement of any Net
     Distributable Cash, and the Shareholders' capital accounts shall be
     adjusted in accordance with Section 6.8 of this Agreement.

               (e)  The remainder of the Company's assets shall be distributed,
     in liquidation of the Shares of all the Shareholders, to those Shareholders
     with positive capital account balances, after taking into account all
     capital account adjustments provided for in Section 6.8 of this Agreement
     (other than those made as a result of any such liquidating distributions)
     in the ratios of such positive capital account balances, as so adjusted.
     Each Shareholder shall receive his share of such remaining assets in cash
     and/or in kind, and the portion of such share that is received in cash may
     vary from Shareholder to Shareholder, all as the President may in his sole
     discretion determine.  Notwithstanding the foregoing, if any assets of the
     Company are to be distributed in kind, such assets shall be distributed on
     the basis of the fair market value thereof and any Shareholder entitled to
     any interest in such assets shall receive such interest therein as a
     tenant-in-common with all other Shareholders so entitled.  If any asset is
     to be distributed in kind, the Shareholders' capital accounts shall be
     adjusted as provided for in Section 6.8 of this Agreement (consistent with
     the requirements of Regulation Section 1.704-1(b)(2)(iv) under Section 704
     of the Code) before any such distribution is made to reflect the increases
     or decreases to said capital accounts which would have occurred if such
     asset to be distributed in kind had been sold for its fair market value by
     the Company immediately prior to such distribution.  All such liquidating
     distributions shall be made by the end of the taxable year of the Company
     in which there is a liquidation of the Company for purposes of Paragraphs
     (b)(2)(ii)(b) and (b)(2)(ii)(g) of Regulation Section 1.704-1 under Code
     Section 704 or, if later, within 90 days after the date of such
     liquidation.  Notwithstanding the foregoing, the President may, in his
     discretion, withhold from such distribution any or all installment
     obligations owed to the Company, so long as such withheld amounts are so
     distributed as soon as practicable and in the ratios of such positive
     capital account balances, as so adjusted.

                                                                   June 17, 1998

                                       30
<PAGE>
 
               (f)  As soon as practicable, the remaining balance, if any, of
     the reserve established in accordance with Section 8.3(b) of this Agreement
     shall be distributed in the manner set forth in Section 8.3(e) of this
     Agreement.

               (g)  Distribution of cash or property to the Shareholders in
     accordance with the provisions of Subsections (e) and (f) of this Agreement
     shall constitute a complete return to the Shareholders of their respective
     Shares in the Company assets.  Each Shareholder shall look solely to the
     assets of the Company for the return of its investment in the Company, and
     it shall have no recourse against the President or any other Manager or any
     Shareholder if the net assets of the Company remaining for distribution as
     hereinabove provided are insufficient to return its investment.

               (h) Notwithstanding any other provision of this Agreement, in the
     event there is a liquidation of the Company for purposes of Paragraphs
     (b)(2)(ii)(b) and (b)(2)(ii)(g) of Regulation Section 1.704-1 under Code
     Section 704 (regardless of whether or not there is a dissolution of the
     Company as hereinabove provided), liquidating distributions, within the
     meaning of said Paragraph (b)(2)(ii)(b), shall in all cases be made in
     accordance with the positive capital account balances of the Shareholders,
     taking into account all capital account adjustments for the taxable year of
     the Company during which such liquidation occurs (other than adjustments
     made pursuant to this Section 8.3(h)), by the end of such taxable year or,
     if later, within 90 days after the date of such liquidation.  Such
     distributions shall otherwise be made in the manner and in accordance with
     the provisions of Section 8.3(e) of this Agreement.  Neither the occurrence
     of such a liquidation nor the making of such liquidating distributions
     shall, however, be treated as the occurrence of any event described in
     Section 8.1 of this Agreement, or shall otherwise result in dissolution of
     the Company.  If such liquidation occurs at a time when there is not also
     such a dissolution by reason of the independent occurrence of an event
     described in said Section 8.1, then (i) the Company shall not be dissolved,
     (ii) the Shareholders shall, immediately upon receiving such liquidating
     distributions, contribute all cash and properties so received to the
     Company, (iii) the capital accounts of the Shareholders shall be adjusted
     as provided in Section 6.8 of this Agreement and (iv) the business and
     affairs of the Company shall be continued without interruption.  Prior to
     distribution of any property pursuant to this Section 8.3(h), the
     Shareholders' capital accounts shall be adjusted as provided for in Section
     6.8 of this Agreement (consistent with the requirements of Regulation
     Section 1.704-1(b)(2)(iv) under Code Section 704) to reflect the increases
     or decreases to said capital accounts which would have occurred if such
     property had been sold for its fair market value by the Company immediately
     prior to such distribution.


                                                                   June 17, 1998

                                       31
<PAGE>
 
                                9.  CONVERSION










                                                                   June 17, 1998

                                       32
<PAGE>
 
     9.1 CONVERSION TO CORPORATION STATUS. Upon Majority Board Action and
Majority Shareholder Action (with all Shareholders voting together as a single
class, and no class or series of Shares shall be entitled to any separate class
vote), the Company shall convert from a limited liability company to a
corporation (a "Change in Status") pursuant to the following procedure and in
accordance with the following terms and conditions: The Change in Status shall
be accomplished pursuant to an incorporation agreement, under which each
Shareholder shall agree to contribute all of the Shareholder's Shares
(representing all of the Shareholder's Interest in the Company) to a corporation
("Newco") organized in the State of Delaware, in exchange for stock of Newco (as
more fully described below and in accordance with the incorporation agreement),
in a transaction intended to qualify under Section 351 of the Code. The
incorporation agreement shall be in such form, and shall contain such terms and
conditions consistent with the intent of this Section 9.1, as the Board of
Directors shall approve. Each Shareholder hereby agrees promptly to execute such
incorporation agreement. As a result of the Change in Status, the Interest in
the Company of each Shareholder (represented by the Shareholder's Shares
contributed to Newco) shall be exchanged for stock of Newco having a value
equivalent to the value of such Interest, as shall be determined by the Board of
Directors in its reasonable discretion. Each class of Interest existing
immediately prior to the Change in Status (each represented by a corresponding
Series of Shares), shall be exchanged for a class or series of stock of Newco
which gives economic effect to the terms and conditions of each class of
Interest for which the stock is exchanged, in order to preserve the preferences,
privileges, qualifications, limitations and special rights of each class of
Interest in the Company. By way of illustration, the Interest of a Series A
Preferred Shareholder shall be exchanged for a class or series of preferred
stock of Newco which contains a liquidation preference, anti-dilution
protection, voting rights, board of director designation rights, redemption
rights and conversion features in form and substance similar to the terms of the
Series A Preferred Shareholder's Interest, and the Interest of a Series B
Preferred Shareholder shall be exchanged for a class or series of preferred
stock of Newco which contains a liquidation preference, anti-dilution
protection, no voting rights, redemption rights and conversion features in form
and substance similar to the terms of the Series B Preferred Shareholder's
Interest. Notwithstanding the foregoing, the liquidation preferences of any
class or classes or series of Newco preferred stock may differ from the
liquidation rights of the Series of Shares for which such stock is exchanged, to
the extent the Board of Directors determines such difference is necessary or
advisable to assure that the value of the stock received by each Shareholder
shall equal the value of the Shareholder's Interest exchanged therefor. No
Shareholder shall have contractual or other right of appraisal in connection
with a Change in Status. Notwithstanding the prior approval of the Board of
Directors or the Shareholders, the transaction effecting a Change in Status may
be terminated or amended pursuant to a provision for such termination or
amendment contained in the incorporation agreement. Once the Company has
effected a Change in Status, Newco shall assume and convert into stock options
(to the extent permissible) any options to acquire Interests held by any Person
immediately prior to the Change in Status.


                                                                   June 17, 1998

                                       33
<PAGE>
 
     9.2  ASSISTANCE IN CONVERSION.  Each Shareholder shall take such action,
and give such consent, in connection with the actions specified in Section 9.1,
as may be necessary, appropriate or convenient to effect the conversion
specified therein.

                               10.  MISCELLANEOUS

     10.1  NOTICES.  All notices, requests, demands, consents and other
communications hereunder shall be in writing and (except in the situations
specified in Section 3.3(d)) shall be deemed to have been duly given if
delivered or if mailed by certified or registered mail, postage prepaid, tothe
President and Chief Financial Officer of the appropriate party at the address
shown in the Share Ledger, as amended from time to time, or to such other Person
or at such other address as such party shall have specified to the other party
upon seven (7) days' notice in the manner herein provided.

     10.2  SUCCESSORS AND ASSIGNS.  This Agreement shall, subject to the
restrictions on transferability set forth herein, and except to the extent
otherwise expressly set forth herein, be binding upon and shall inure to the
benefit of the parties hereto and their respective heirs, executors,
administrators, legal representatives, successors and permitted assigns.

     10.3  NO WAIVER.  The failure of the Company or any Shareholder to insist
upon strict performance of any provision hereunder, irrespective of the length
of time for which such failure continues, shall not be deemed a waiver of the
Company's or such Shareholder's right to demand strict performance at any time
in the future. No consent or waiver, express or implied, to or of any breach or
default in the performance of any obligation or provision hereunder shall
constitute a consent or waiver to or of any other breach or default in the
performance of the same or any other obligation hereunder.

     10.4   ENTIRE AGREEMENT.  This Agreement constitutes the full and complete
agreement of the parties hereto with respect to the subject matter of this
Agreement.

     10.5   COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, all of which together for all purposes shall constitute one
instrument, binding on all the Shareholders notwithstanding that all
Shareholders have not signed the same counterpart.

     10.6   APPLICABLE LAW.  This Agreement shall be governed by, construed and
enforced in accordance with the laws of the State of Delaware. All disputes and
litigation regarding this Agreement and matters connected with its performance
shall be subject to the non-exclusive jurisdiction of the state and federal
courts in Suffolk County, Massachusetts.


                                                                   June 17, 1998

                                       34
<PAGE>
 
     10.7   HEADINGS; SECTION REFERENCES.  The headings contained in this
Agreement are for reference only and shall not in any way affect the meaning or
interpretation of this Agreement. References to Sections without decimals (such
as "Section 2") shall include all sections numbered with decimals in such
Section (i.e. Section 2.1, 2.2, etc.).

     10.8   CONSTRUCTION.  Whenever appropriate in this Agreement, words used in
the singular may be read in the plural, words used in the plural may be read in
the singular, words imparting the neuter shall include the masculine and
feminine genders and words imparting the masculine gender shall include the
feminine and neuter.

     10.9  SEVERABILITY.  If any provision of this Agreement shall be held or
deemed to be, or shall in fact be, invalid, inoperative or unenforceable as
applied to any particular case in any jurisdiction or jurisdictions or in all
cases, because of the conflicting of any provision with any constitution or
statute or rule of public policy or for any other reason, such circumstance
shall not have the effect of rendering the provision or provisions in question
invalid, inoperative or unenforceable in any other jurisdiction or in any other
case or circumstance or of rendering any other provision or provisions herein
contained invalid, inoperative or unenforceable to the extent that such other
provisions are not themselves actually in conflict with such constitution,
statute or rule of public policy; but this Agreement shall be reformed and
construed in any such jurisdiction or case as if such invalid, inoperative or
unenforceable provision had never been contained herein and such provision
reformed so that it would be valid, operative and enforceable to the maximum
extent permitted in such jurisdiction or in such case.

     10.10  AMENDMENT.  This Agreement may be amended by Majority Shareholder
Action, and any such amendment shall be binding on all parties; provided that in
addition, the President and/or Treasurer of the Company may amend the Share
Ledger, without the approval or consent of any other Director or Shareholder, to
reflect changes in the Capital Contribution, Percentage Interest or address of
any Shareholder or the assignment of any Share, or the admission or removal of
any additional Shareholders, provided such changes, assignments, admissions
and/or removals were performed in accordance with the terms of this Agreement.
Notwithstanding the foregoing, (i) any elimination of a requirement of
Supermajority Member Action shall require a Supermajority Member Action and (ii)
any amendment of Sections 4, 5, 6 and 8 which materially and adversely affects
the Series B Preferred Shares in a manner which is more adverse than such
amendment would be to the Series A Preferred Shares with respect to economic
terms (but not terms such as voting or management rights) shall also require
Series B Majority Action; provided that, for the purpose of avoiding doubt it is
agreed none of the following shall require Series B Majority Action: (1) any
amendment to create or increase any series of membership interest with any
preference or priority over the Series B Preferred Shares as to the right to
receive distribution ("Senior Shares") so long as such Senior Shares also have
an equivalent preference or priority over, and dilute proportionately with, the
Series A Preferred Shares; and (2) any amendment to create or increase any
series of membership interest which are not Senior 

                                                                   June 17, 1998

                                       35
<PAGE>
 
Shares with respect to which the Series B Preferred Shares and are not Senior
Shares with respect to the Series A Preferred Shares ("Junior Shares").










                                                                   June 17, 1998

                                       36
<PAGE>
 
             EXECUTED UNDER SEAL as of the 5th day of June, 1998.



/s/  Dennis T. Gain
- -------------------
Dennis T. Gain


THE GAIN FAMILY TRUST


/s/  Dennis T. Gain
- -------------------
Dennis T. Gain


SPACETEC IMC CORPORATION


By: /s/  C. Raymond Boelig
   -----------------------
Name:  C. Raymond Boelig
Title: President & Chief Operating Officer


3D OPEN MOTION, LLC VOTING TRUST


/s/  Dennis T. Gain
- -------------------
Dennis T. Gain, as Voting Trustee




                                                                   June 17, 1998

                                       37
<PAGE>
 
                                                                      SCHEDULE A
                                                                      ----------
                                                                                
                                  SHARE LEDGER

<TABLE>                                                    
<CAPTION>
                                                                   NUMBER AND
 CERT.    DATE    SHAREHOLDER NAME                   CAPITAL        SERIES OF                                
  NO.               AND ADDRESS                   CONTRIBUTION        SHARES        % INTEREST               
- ------------------------------------------------------------------------------------------------- 
<S>       <C>    <C>                              <C>             <C>                  <C>                                  
   1             Dennis Gain                       $340,000       27,200 Class A       27.2%                 
                 30 Boren Lane                                        Shares                                  
                 Boxford, MA 01921                                                                       
- ------------------------------------------------------------------------------------------------- 
   2             The Gain Family Trust             $360,000       28,800 Class A       28.8%                 
                 30 Boren Lane                                        Shares                                  
                 Boxford, MA 01921                         
 ------------------------------------------------------------------------------------------------- 
   3             Spacetec IMC Corporation          $100,000       20,000 Class B       20.0%
                 The Boott Mills                                      Shares
                 100 Foot of John Street
                 Lowell, Massachusetts 01852
- ----------------------------------------------------------------------------------------------------
   4             Dennis Gain, as Voting Trustee
                 3D OPEN MOTION, LLC VOTING TRUST    $9,500       24,000 Class C       24.0%
                 The Mill                                              Shares
                 73 Princeton Street
                 North Chelmsford, MA 01863
 ----------------------------------------------------------------------------------------------------
</TABLE>

                                                                   June 17, 1998

                                       38
<PAGE>
 
                                                                      SCHEDULE B
                                                                      ----------
                                                                                
                           CAPITALIZATION DESCRIPTION
                                        

<TABLE>
<CAPTION>
                                                              Preferred                      
                                             Preferred or     Return on      Number of Shares
 Series of Shares   Voting or Non-voting       Common         Capital          Authorized   
- ---------------------------------------------------------------------------------------------
<S>                  <C>                     <C>            <C>              <C>
    Series A             Voting               Preferred         8%               200,000
- ----------------------------------------------------------------------------------------------
    Series B            Non-voting            Preferred         8%                30,000
- ----------------------------------------------------------------------------------------------
    Series C             Voting               Common            None             400,000
- ---------------------------------------------------------------------------------------------
</TABLE>



                                                                   June 17, 1998

                                       39

<PAGE>
 
e$$/TARGET=[.exc]



                    Exhibit 99.3 - Asset Transfer Agreement
                    ------------                

                            ASSET TRANSFER AGREEMENT
                                        
     ASSET TRANSFER AGREEMENT (the "Agreement") dated as of June 5, 1998, by and
between 3D OPEN MOTION, LLC, a Delaware limited liability company, having its
principal place of business at The Mill, 73 Princeton Street, North Chelmsford,
MA 01863 (the "Company"), and Spacetec IMC Corporation, a Massachusetts
corporation, having its principal place of business at The Boott Mills, 100 Foot
of John Street, Lowell, Massachusetts ("SIMC").

                                    RECITALS
                                        
     WHEREAS, SIMC has been involved in the conception, design, research and
development of a body of 3D enabling software technologydesigned to be a
platform and graphics independent Application Programmer's Interface and related
specific Software Development Kits that will allow faster and easier creation,
storage, retrieval, editing and invoking of 3D motion and 3D interactive motion
control capabilities, all as set forth in EXHIBIT 1 of this Agreement (the
                                          ---------                       
"OpenMotion Technology"), but has not as yet brought this technology to
commercial viability.

     WHEREAS, SIMC  has decided to focus its energies and efforts on developing
and growing its core 3D controllerand related software business and therefore
has decided to divest itself of its OpenMotion Technology.

     WHEREAS,  the Company has been established for, among other things, the
purpose of acquiring the OpenMotion Technology and certain other assets from
SIMC in order to continue the development and eventual commercialization of the
OpenMotion Technology.

     WHEREAS, both SIMC and the Company are desirous of entering into a mutually
binding Business Cooperation Agreement setting forth the terms of their business
relationship.
                                   AGREEMENT
                                        
     NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein, the parties agree as follows:

1.  CONTRIBUTION OF ASSETS AND ASSUMPTION OF LIABILITIES.

     (a) Contribution of Assets. SIMC agrees that, at the Closing, SIMC shall
assign, transfer and deliver to the Company those assets and properties set
forth below:


                                                                   June 17, 1998

                                       1
<PAGE>
 
          (i) all patents, patent applications, all patentable ideas, invention
     disclosures, proprietary rights, service marks, trademarks (whether
     registered or unregistered), and associated goodwill, trade names,
     trademark applications, trade rights, trade secrets, designs, plans,
     blueprints, drawings, computer programs, content, and other computer
     software, specifications, manuals, technical documents, quality documents,
     customer lists, process sheets, logos, copyrights (whether registered or
     unregistered), copyright applications, moral rights and design rights, 
     know-how, methods, concepts, technology, inventions relating solely to the
     OpenMotion Technology and such other specific intellectual property rights
     to the software set forth in EXHIBIT 2 hereto; and all drawings,
                                  ---------                          
     schematics, records, licenses, and confidential or proprietary information
     related to any of the foregoing; provided, however, that SIMC retains the
     rights to such general purpose motion models comprising (A) procedural
     motions and motions synthesized by mathematical formulae, (B) interactive
     motions and motions that are controlled or directed normal by an
     interactive input device, such as the Spaceball, keyboard or mouse and
     (iii) application programming interfaces supporting (A) and (B) above;

          (ii) all computer and office equipment, other tangible personal
     property, books, records, files, data, graphs, charts, specifications,
     diagrams, assessments, reviews, instructions, manuals, marketing and
     advertising materials, papers, plans, reports, budget forecasts and
     analysis, schedules, charts and other written material of every kind, and
     any electronic, film, microfilm, microfiche or computerized form of any of
     the foregoing items, wherever located, relating solely to the OpenMotion
     Technology and the equipment and other tangible personal property set forth
     on EXHIBIT 2.
        --------- 

The foregoing are referred to as the "Transferred Assets."

     (b)  Liabilities Retained by SIMC.  The Company shall not assume nor agree
to pay, perform or discharge, and SIMC shall solely retain and be responsible
for paying and discharging, all liabilities or obligations of SIMC, whether
disclosed, undisclosed, direct, indirect, absolute, contingent, secured,
unsecured, accrued or otherwise, pertaining to the Transferred Assets prior to
the date hereof. The Company shall be solely responsible for paying and
discharging all liabilities or obligations, whether disclosed, undisclosed,
direct, indirect, absolute, contingent, secured, unsecured, accrued or
otherwise, pertaining to the Transferred Assets arising on or after the date
hereof.

2.  ISSUANCE OF SHARES; DELIVERY OF TRANSFERRED ASSETS.

     (a)   Issuance of Shares. In exchange for the Transferred Assets, the
Company shall issue to SIMC 20,000 Series B Preferred Shares.


                                                                   July 17, 1998

                                       2
<PAGE>
 
     (b) Delivery of the Transferred Assets.

           (i)    At the Closing, subject to the terms and conditions of this
     Agreement, SIMC shall contribute, transfer, assign and deliver to Company
     all of SIMC's right, title and interest in and to the Transferred Assets.

           (ii)   The contribution, transfer, assignment, and delivery of the
     Transferred Assets by SIMC to the Company shall be effected by the
     execution and delivery of an assignment of patents, trademarks and
     copyrights substantially in the form attached hereto as EXHIBIT 3 and such
                                                             ---------         
     other documents and instruments of transfer and assignment, in form and
     substance reasonably satisfactory to counsel for the Company, as shall be
     necessary to contribute, transfer, and assign to, and to vest in, the
     Company, good and marketable title to the Transferred Assets.

3.  SIMC'S REPRESENTATION AND WARRANTIES.
SIMC makes the following representations and warranties to the Company as of the
Closing:

           (a)    Organization and Good Standing.  SIMC is a corporation duly
     organized, validly existing and in good standing under the laws of the
     Commonwealth of Massachusetts, and has full corporate power and authority
     to own and transfer the Transferred Assets and to carry on its business as
     presently conducted.

           (b)    Authorization; No Violations.  The execution and delivery of
     this Agreement and the transactions contemplated hereby have been duly
     authorized by the Board of the Company. This Agreement constitutes a legal,
     valid and binding obligation of SIMC enforceable against SIMC in accordance
     with its terms. The execution and delivery of this Agreement by SIMC and
     the performance by SIMC of the transactions contemplated by this Agreement
     do not and will not conflict with or result in a violation, breach or
     termination of, or default under any term or provision of the corporate
     charter or bylaws of SIMC.

          (c)  Title to Assets.  Except as set forth on EXHIBIT 4 SIMC has good,
                                                        ---------
     merchantable and marketable title to all of the Transferred Assets set
     forth on EXHIBIT 4 hereto.
              ---------


                                                                   July 17, 1998

                                       3
<PAGE>
 
           (d)   Intellectual Property Representations.  To the knowledge of
     SIMC, prior to the date hereof, SIMC has not been informed in writing that
     those portions of the OpenMotion Technology developed by SIMC personnel do
     not infringe upon the United States patent, copyright or trademark rights
     of any third party, nor do such portions misappropriate the trade secret
     rights of any third party. SIMC has not undertaken any independent
     investigation of the validity or lack of infringement of the intellectual
     property rights of the Transferred Assets.

     SIMC TRANSFERS ITS INTEREST IN AND TO THE OPEN MOTION TECHNOLOGY AND SUCH
     OTHER INTELLECTUAL PROPERTY RIGHTS SET FORTH IN EXHIBIT 2 HERETO "AS IS"
                                                     ---------               
     AND MAKES NO REPRESENTATION OR WARRANTY OF ANY KIND OTHER THAN AS SET FORTH
     IMMEDIATELY ABOVE.

          (e)  Investment Representations.  SIMC has sufficient knowledge and
     experience in investing in companies similar to the Company in terms of the
     Company's stage of development so as to be able to evaluate the risks and
     merits of its investment in the Company and it is able financially to bear
     the risks thereof. It has had an opportunity to discuss the Company's
     business, management and financial affairs with Company management and it
     believes it has received all the information necessary or appropriate for
     deciding whether to invest in the Series B Preferred Shares. The Series B
     Preferred Shares being issued to SIMC are being acquired for its own
     account for the purpose of investment and not with a view to or for sale in
     connection with a distribution thereof. SIMC understands that (i) the
     Series B Preferred Shares have not been registered under the Securities Act
     by reason of their issuance in a transaction exempt from the registration
     requirements of the Securities Act, (ii) the Shares must be held
     indefinitely unless a subsequent disposition thereof is registered under
     the Securities Act or is exempt from such registration, (iii) the Shares
     will bear a legend to such effect and (iv) the Company will make a notation
     on its transfer books to such effect.

4.  THE COMPANY'S REPRESENTATIONS AND WARRANTIES.  The Company hereby represents
and warrants to SIMC, as of the Closing, that (a) the Company is a limited
liability corporation duly organized, validly existing and in good standing
under the laws of the State of Delaware and has all requisite power and
authority to conduct its business, to admit shareholders to the Company, and to
issue the Series B Shares, and (b) all action required to be taken by the
Company as a condition of the issuance of the Series B Preferred Shares and
admittance of SIMC as a member of the Company has been taken.

5.  CLOSING.  The closing (the "Closing") of the transactions contemplated
hereby shall take place on June 5, 1998 or on such other date as shall be
mutually agreed (the "Closing Date") at the offices of Testa, Hurwitz &
Thibeault, LLP, 125 High Street, Boston, MA 02110. At the Closing (a) SIMC shall
effect and evidence transfer of it s 


                                                                   July 17, 1998

                                       4
<PAGE>
 
interest in the Transferred Assets to the Company by means of an assignment of
patents, trademarks and copyrights substantially in the form attached hereto as
EXHIBIT 3 and such other assignments, acts and assurances as may be reasonably
- ---------
requested by the Company, for the complete transfer to, and vesting in the
Company of the interest held by SIMC in the Transferred Assets and (b) the
Company shall deliver to SIMC fully executed copies of this Agreement, the
Operating Agreement of the Company and the Share Contribution Agreement.

6.  OTHER AGREEMENTS

          (a) Former SIMC Employees and Consultants.  Each of the employees
     (individually, an "Employee") and the consultant (the "Consultant")
     identified in EXHIBIT 5 has, in the case of each Employee, submitted his
                   ---------
     resignation to SIMC and, in the case of the Consultant, terminated his
     consulting agreement with SIMC, concurrently with the execution of this
     Agreement. In connection therewith, SIMC has released each Employee and
     Consultant from his non-disclosure obligation as set forth in the
     Confidentiality and Non-Disclosure Agreement between such individual and
     SIMC as it relates to the OpenMotion Technology and the Company's Core
     Business.

           (b)    Michelangelo. The demonstration software and user interface
     code-named "Michelangelo" is included within the Transferred Assets,
     however SIMC shall retain an undivided one-half co-ownership of the
     copyright in such materials.

           (c)    Delivery and Deletion of Files and Data. SIMC agrees that
     after the date hereof, it shall not retain any copies, whether in tangible
     or digital form, of any of the materials referred to in Paragraph 1(a)
     hereof. In connection therewith, SIMC shall, on or before the date hereof,
     remove all such materials from its servers and databases.

7.  FURTHER ASSURANCES.  From and after the Closing, SIMC agrees that it shall,
as long as it is legally and otherwise able to do so, and without further
consideration and at any time upon the reasonable written request of the
Company, and at the Company's expense, take, execute, acknowledge and deliver
all such further documents, assignments, transfers, consents and agreements as
may be reasonably required to carry out the transactions contemplated by this
Agreement.

8.  ARBITRATION AND DISPUTE RESOLUTION.  Any dispute, controversy, cause of
action or claim arising out of or in connection with this Agreement shall be
determined and settled by arbitration in Boston, Massachusetts, pursuant to the
rules then in effect of the American Arbitration Association. Any award rendered
shall be final and conclusive upon the parties and a judgment thereon may be
entered in a court having competent jurisdiction. The party submitting such
dispute shall request the American Arbitration Association to (i) appoint at
least two arbitrators who are knowledgeable in 


                                                                   July 17, 1998

                                       5
<PAGE>
 
and familiar with the industry of SIMC and Company and who will follow
substantive rules of law; (ii) allow for the parties to request discovery
pursuant to the rules then in effect under the Federal Rules of Civil Procedure
for a period not to exceed thirty (30) days; and (iii) require the award to be
accompanied by findings of fact and a statement of reasons for the decision. The
parties shall request that any dispute shall be resolved within 60 days of the
appointment of the arbitrators. All costs and expenses, including attorney's
fees, of all parties incurred in any dispute which is determined and/or settled
by arbitration pursuant to this Section shall be borne by the party determined
to be liable in respect of such dispute; provided, however, that if complete
liability is not assessed against any one party, the parties shall share the
total costs in proportion to their respective amounts of liability so
determined. Except where clearly prevented by the area in dispute, both parties
agree to continue performing their respective obligations under this Agreement
while the dispute is being resolved.

9.  COSTS AND EXPENSES.  Each party shall bear and be responsible for their own
attorneys' fees, accountants' fees, broker's fees and expenses incurred by them
in the preparation, negotiation and execution of this Agreement and all related
documents and the acquisition and sale of the Transferred Assets.

10.  NOTICES.  All notices or communications required or permitted hereunder
shall be in writing and sent (i) postage prepaid, by first-class mail, (ii) by
electronic facsimile transmission, or (iii) by overnight courier service to the
party entitled thereto.

11.  SUCCESSORS AND ASSIGNS.  This Agreement shall be binding upon and shall
inure to the benefit of the parties hereto and their respective successors,
assigns or nominees.

12.  MISCELLANEOUS.  This Agreement shall be governed by, and construed in
accordance with, the internal laws of the Commonwealth of Massachusetts. All
written and oral understandings and agreements heretofore made between the
parties hereto with respect to the transactions contemplated hereby are merged
into this Agreement, and this Agreement reflects all the understandings of the
parties with respect to such transactions and supersedes all prior written and
oral agreements and understandings. This Agreement cannot be modified, extended
or amended except by written agreement signed by the respective parties hereto.
This Agreement may be executed in two or more counterparts, and each
counterpart, when so executed and delivered, shall constitute a complete and
original instrument. The provisions of this Agreement are severable and, in the
event that any court of competent jurisdiction shall determine that any one or
more of the provisions or part of a provision contained in this Agreement shall,
for any reason, be held to be invalid, illegal or unenforceable in any respect,
such invalidity, illegality or unenforceability shall not affect any other
provision or part of a provision of this Agreement. Captions or titles of
sections are inserted for convenience only; they do not define, limit or extend
the scope or intent of this Agreement or any of the provisions thereof.


                                                                   July 17, 1998

                                       6
<PAGE>
 
  IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first above written.

                              3D OPEN MOTION, LLC



                              By:   /s/ Dennis T. Gain
                                ----------------------
                              Name:  Dennis T. Gain
                              Title:    President

                              SPACETEC IMC CORPORATION



                              By:  /s/  C. Raymond Boelig
                                   ----------------------
                              Name:  C. Raymond Boelig
                              Title:   President & Chief Operating Officer


                                                                   July 17, 1998

                                       7
<PAGE>
 
                                                                       EXHIBIT 1
                                                                       ---------

      [INSERT OPEN MOTION DEFINITION FROM BUSINESS OPPORTUNITY AGREEMENT]

























July 17, 1998

                                       8
<PAGE>
 
                                                                       EXHIBIT 2
                                                                       ---------

OPEN MOTION COMPUTER & OFFICE EQUIPMENT SCHEDULE

GEORGES GRINSTEIN
        Dell Computer
        CPU: Pentium II
        MHZ: 300
        HD: 6 GIG
        CD ROM Speed: 28
        Monitor Name:   Dell Trinitron
        Size of Monitor:  17"
        Video Card:  Matrox Millennium
        Other Equipment: Mouse, Speakers, HP LaserJet 4V
        Laptop Computer:
        IBM 760 166 MHz
                D ROM
                Additional Memory = 32MEG RAM
                Quantum Big Foot Hard Drive 6.4 GIG

JEFF LEGER
        Computer SN: 2034
        CPU:  Pentium
        MHZ: 133
        HD:  2 GB
        CD ROM Speed: 4X
        Floppy: 3 1/2
        Monitor Name: Mag
        Size: 17"
        Serial Number: MH4344005558
        Video Card: Diamond Stealth 64
 

DAVID SOUTHARD
        
        Computer SN: IRIS
        CPU:  P5 MMX
        MHZ:  200
        HD: 4.0G
        CD ROM Speed: 15X
        Floppy: 1.44 MB
        Monitor Name: Panasonic Panasync S17
        Size: 17"
        Serial Number: FC7150890
        Video Card: Matrox Millennium 4 MB
        Controller:  Spaceball 3003 SN: 0897078116
        Other Equipment: Juster DC-691 Speakers
        
BOOKS   Succeeding with the Booch and OMT methods B
        Object Solutions B
        UML and C++ B
        Art of 3D Computer Animation and Imaging B
        
J.P. LEE

        Computer Serial Number: HERA
        CPU: Pentium P-200
        MHZ 200 MMX
        HD: 2 GB
        CD ROM Speed: 15X
        Floppy: 3  1/2- 1.44 MB
        Monitor Name: Panasonic
        Size: 17"
        Serial #: FC7150821 


                 
                                                                  June 17, 1998 

                                       9
<PAGE>
 
        Video Card: Matrox Millennium
        Speakers: Juster Speakers
                         
BOOKS   Software Reuse B
        Object Oriented Design Mgmt. B
        Dynamics of Software Development B
        Succeeding W/ Booch & OMT B
        Object Solutions: Managing the OO Project B
        Large Scale C++ SW Design B
        Intro to the PSP B
                 
BACK CUBICLE

        Computer Serial #:
        CPU: Pentium
        MHZ: 166
        HD: 2.0 GB
        CD ROM Speed: 8X
        Floppy: 3 1/2
        Monitor Name: Panasonic
        Size: 17"
        Serial #: FB7150583
        Video Card: Diamond Stealth 64
                  

MARJAN TRUTSCHL

        Computer Serial #:
        CPU: P-166
        HD: 2 GB SCSI
        Monitor Name: Panasonic
        Size: 17"
        Serial #: FB7150586
        Video Card: Diamond Stealth 64 Card
        Controller: SCSI -Adaptec 2940


SOFTWARE/BOOKS

        Graphic Programming in C B
        Active X Controls B
        MFC Programming    B
        Visual C++ How ToLarge Scale C++ Dev.  B
        3D Graphics for Win 95 B
        Direct 3D   B
        Direct Draw B
        Visual C++ 4.0 B
        Programming Win 95 B
        Visual C++ 5.0 B
        SuperCede 1.2 SW
        Corel WP Office Suite 7 SW
        Corel WP Suite 8 SW
        The Incredible Machine SW


BRAD MACPHERSON

        Computer Serial Number: D709BJS30172
        CPU: Dual Pentium Pro
        MHZ: 200
        HD: 2GB
        Monitor Name: Compaq Presario
        Size: 17"
        Serial #: 716CD02DB287
        Video Card: Diamond Fire GL
        Printer: HP DeskJet 400
        Serial # MY6641E0J7
        Controller: Spaceball 3003, SpaceOrb 360



                                                                   June 17, 1998

                                       10
<PAGE>
 
        Other Equipment: Wacom Tablet (2) Mac & PC
        Video Camera and Tripod
 

2ND WORKSTATION

        SN:  Power Computing Power Tower 166,  1320993
        CPU: Mac
        MHZ: 166
        HD: 2GB
        Jaz Drive 1GB
        Monitor Name: MAG Inovision
        Size 17"
        Serial #: MH4334045629
        Video Card: Micro Motion DC20


3RD WORKSTATION

        Computer Serial # 6709BMX2D215, Compaq Presario
        CPU: Pentium W/ MMX
        MHZ: 200
        HD: 8MB
        CD ROM Speed 16X
        Monitor Name: Compaq Presario
        Size: 17"
        Serial #: 716CD02DB297
 

SOFTWARE

        3D Studio Max R2 SW
        Macromedia Director 6 SW
        True Space 3 SW
        True Space 2 SW
        DeBabelizer Pro SW
        Adobe PhotoShop SW
        Adobe Illustrator SW
        Lightwave SW
        Simply 3D SW
        Kai's Power GOO SW
        Bryce 2 SW
        Norton Utilities SW
        Math Journey SW
 

ADDITIONAL SOFTWARE AND BOOKS

        Rational Rose (3) Complete boxed sets with manuals, 
         updates & Support SW
        Soda (1) Boxed set with docs. SW
        Requisite Pro (1) Boxed sets with docs. SW
        Rogue Wave Tool.h++ (1) Boxed set with docs. SW
        Microsoft Visual Studio 97 SW
        Visual C++ 5.0 SW
        Enterprise Edition SW
        Microsoft Source Safe Client SW
        MS Windows 95 SW
        McAfee Virus Scan SW
        Succeeding with the Booch and OMT methods B
        Object Solutions B
        UML and C++  B
        Art of 3D Computer Animation and Imaging  B
        Cutting Edge 3D Game Pro B
        Remembering the Future B
        MS Project 98 Step by Step B
        Game Developers Marketplace B
        Interactivity in Action B
        Oddworld Games SW



                                                                   June 17, 1998

                                       11
<PAGE>
 
        Uninstaller 4.5 SW
        Virtual Springfield SW
        Temujin SW
        Connie and Bonnie's Birthday SW
        Animaniacs Game Pack SW
        Gettysburg SW
        Nu-Graf SW
        Viewpoint Data Shop SW
        Game Programming Kit SW
        Vis Toolkit Object Orientation B
        Rapid Development B
        HT Run Success Projects B
        Supercede Java Edition SW
        Java in a Nutshell B
        Java Companion Books B
        Windows Annoyances B
        PAX Imperia SW
        Riven SW
        Tomb Raider SW
        Outlaws SW
        Screamers SW
        CGDC CD ROM B
        CGDC Proceedings B
        Complete Set of Quake Videos (MISSING)
        Intro to the personals B
        Software Re-Use Architecture B
        Object Oriented Design Measure B
        Object Oriented Software Metrics B
 
ADDITIONAL OFFICE FURNITURE

        All Office Furniture: desks, bookcases, tables,
        corkboards, desk lamps, chairs, whiteboards, partitions.



                                                                   June 17, 1998

                                       12
<PAGE>
 
                                                                       EXHIBIT 3
                                                                       ---------


                ASSIGNMENT OF PATENTS, TRADEMARKS AND COPYRIGHTS


   WHEREAS, pursuant to an Asset Transfer Agreement dated as of   June 5, 1998
(the "Asset Transfer Agreement") Spacetec IMC Corporation, a corporation
organized and existing under the laws of the Commonwealth of Massachusetts
("SIMC") is transferring such right, title and interest that it may have in and
to certain (i) United States patents and applications as specified in Schedule A
                                                                      ----------
attached hereto and made a part hereof (the "PATENT RIGHTS"); (ii) trademark
registrations and trademark applications, as specified in Schedule B attached
hereto and made a part hereof (the "TRADEMARKS"); and (iii) copyright
applications or registrations, as specified in Schedule C attached hereto and
made a part hereof (the "COPYRIGHTS") (together, the Patent Rights, Trademarks
and Copyrights, the "RIGHTS");

   WHEREAS,  3D OPEN MOTION, LLC, a limited liability corporation organized and
existing under the laws of the State of Delaware (the "COMPANY") has acquired
such right, title and interest in and to certain assets and properties owned by
SIMC, including the Rights pursuant to an Asset Transfer Agreement by and
between SIMC and the Company of even date herewith (the "ASSET TRANSFER
AGREEMENT"); and

   WHEREAS, pursuant to the Asset Transfer Agreement SIMC has agreed to execute
an assignment of patents, trademarks and copyrights.

   NOW, THEREFORE, in consideration of the foregoing, as well as for other good
and valuable consideration the receipt of which is hereby acknowledged, SIMC
hereby sells, assigns, transfers and sets over to the Company, its successors
and assigns, such right, title and interest that it may have in and to (i) the
Patent Rights and including the rights to recover damages and other compensation
for infringement of the Patent Rights and any patents issued in respect thereof,
and to file and obtain any continuations, continuations-in-part, substitutions,
reissues, extensions, divisions and any reexamination of the Patent Rights and
any patents issued in respect thereof; (ii) the Trademarks, together with the
goodwill of the business in which the Trademarks are used and which goodwill is
symbolized by the Trademarks, and including the rights to recover damages,
profits and other compensation for infringement, including past infringement, of
the Trademarks and to file and obtain renewals thereof; and (iii) the
Copyrights, and all claims, if any, which may have arisen thereunder prior to
the date of this Agreement.

   After delivery of this Assignment, SIMC shall upon request of the Company
execute and deliver such additional documents and instruments, and perform such
additional acts, as may be required to perfect the right, title and interest in
and to the Rights acquired by the Company hereunder.


                                                                   June 17, 1998

                                       13
<PAGE>
 
   IN WITNESS WHEREOF, SIMC has caused this instrument to be executed by its
duly authorized officer as of this 5th day of June, 1998.

                             SPACETEC IMC CORPORATION


ATTEST:                      By:  /s/  C. Raymond Boelig
                                  ----------------------
                             Name:  C. Raymond Boelig
___________________________  Title:  President & Chief Operating Officer
                                     -----------------------------------



                                 ACKNOWLEDGMENT

COMMONWEALTH OF MASSACHUSETTS)
County of   SUFFOLK    )  ss.

   On this 5th day of June, 1998, being duly sworn personally appears before me,
the above named, C. Raymond Boelig, known by me to be the one who executed the
                 -----------------                                            
foregoing instrument and subscribed the same in my presence, and acknowledged
the same to be his free act and deed on behalf of and as authorized by Spacetec
                                                                       --------
IMC.
- --- 

                                                   /s/ Jeffrey M. Sachs
                                                   --------------------
                                                   Notary Public       


                                                                   June 17, 1998

                                       14
<PAGE>
 
                                   SCHEDULE A
                                   ----------

                        To Assignment Dated June 5, 1998



U.S. Patent Applications:
- ------------------------ 


                                     NONE.


Foreign Patent Applications:
- --------------------------- 


                                     NONE.




                                                                   June 17, 1998

                                       15
<PAGE>
 
                                   SCHEDULE B
                                   ----------

                        To Assignment Dated May __, 1998



U.S. Trademark Registration No.:  2,125,063
- ------------------------------             

Title:    REALLIFE3D

Issue Date:  December 30, 1997

Renewed:

For:


Unregistered Trademarks:
- ----------------------- 

<TABLE>
<CAPTION>

     NAME                   APPLICATION NUMBER            FILING DATE
- -----------------------------------------------------------------------
<S>                           <C>                       <C>
ANIMOTION                        75/395,881               25-Nov-1997
- -----------------------------------------------------------------------
CLIP-E-MOTION                    75/395,886               25-Nov-1997
- -----------------------------------------------------------------------
DIRECTMOTION                     75/395,882               25-Nov-1997
- -----------------------------------------------------------------------
OPENMOTION                       75/395,885               25-Nov-1997 
- -----------------------------------------------------------------------

</TABLE>




                                                                   June 17, 1998

                                       16
<PAGE>
 
                                  SCHEDULE C
                                  ----------

                        To Assignment Dated June 5, 1998



Copyright Registrations
- -----------------------



                                     NONE.


Copyright Applications
- ----------------------



                                     NONE.






                                                                   June 17, 1998

                                       17
<PAGE>
 
                                                                       EXHIBIT 4
                                                                       ---------
                            EXCEPTIONS TO GOOD TITLE
                            ------------------------
                                        

                                     NONE.
















                                                                   July 17, 1998

                                       18
<PAGE>
 
                                                                       EXHIBIT 5
                                                                       ---------
                             TRANSFERRED EMPLOYEES
                             ---------------------


Dennis Gain
30 Boren Lane
Boxford, MA 01921

Georges Grinstein
151 Simonds Road
Ashby, MA  01431

J.P. Lee
96 North Street
North Reading, MA  01864

Jeffrey Leger
17 Appaloosa Circle
Tyngsboro, MA  01879

Bradford MacPherson
1 Villa Street, Apt. K
Mansfield, MA  02048

David Southard
137 Page Road
Bedford, MA  01730


Elsie W. Kitchen
Director Human Resources
Spacetec IMC Corporation
Tel. 978-275-6105

                                       19

<PAGE>
 
                    Exhibit 99.4 Share Purchase Agreement 
                    ------------ 

                            STOCK PURCHASE AGREEMENT
                                        
     STOCK PURCHASE AGREEMENT (the "Agreement") dated as of June 5, 1998, by and
between 3D OPEN MOTION, LLC, a Delaware limited liability company, having its
principal place of business at The Mill, 73 Princeton Street, North Chelmsford,
MA 01863 (the "Company"), and Spacetec IMC Corporation, a Massachusetts
corporation, having its principal place of business at The Boott Mills, 100 Foot
of John Street, Lowell, Massachusetts 10852 ("SIMC").

                                    RECITALS
                                        
     WHEREAS, the Company is the owner of 291,667 shares (the "Shares") of
common stock, $.01 par value (the "Common Stock"), of SIMC.  The Company desires
to sell, and SIMC desires to purchase, the Shares on the terms and conditions
contained herein, for a purchase price of $2.40 per share.

                                   AGREEMENT
                                        
     NOW, THEREFORE, in consideration of the covenants and conditions set forth
in this Agreement, the parties agree as follows:

1.  SALE OF SHARES.  Subject to the terms and conditions of this Agreement, the
Company agrees to sell, transfer and assign to SIMC and, subject to and in
reliance upon the representations, terms and conditions of this Agreement, SIMC
agrees to purchase, the Shares for the purchase price of $2.40 per Share and for
an aggregate amount equal to $700,000.80 (the "PURCHASE PRICE").

2.  CLOSING.  The closing of the purchase and sale of the Shares under this
Agreement (the "Closing") shall be held at the offices of Testa, Hurwitz &
Thibeault, LLP, 125 High Street, Boston, MA 02110 on June __, 1998, or at such
other time and place to which the Company and SIMC may mutually agree. At the
Closing, and upon execution and delivery of this Agreement, the Company will
cause to be delivered to SIMC a certificate or certificates representing the
Shares to be purchased by SIMC from the Company, accompanied by duly executed
stock powers evidencing the transfer of the Shares to SIMC. At the Closing, SIMC
will deliver a check to the Company in an amount equal to the Purchase Price.

3.  REPRESENTATIONS OF THE COMPANY.  In connection with the sale of the Shares
hereunder to SIMC, the Company represents, warrants and agrees as follows:

     (a)  Ownership of Stock.  The Company is the sole record and beneficial
owner of, and has good, valid and marketable title to, the Shares to be sold by
such Company to SIMC hereunder, free and clear of any and all liens, security
interests, pledges, 


                                                                   June 17, 1998

                                       1
<PAGE>
 
encumbrances, claims, equities, defects in title, rights and other restrictions
of any nature on transfer or voting held by any third party (collectively
"Encumbrances"). The Company has full right, power, capacity and authority to
sell, transfer and deliver the Shares hereunder. The performance by the Company
of his obligations hereunder will be effective to transfer good, valid and
marketable title to the Shares to be sold by the Company hereunder, free and
clear of any and all Encumbrances, other than those that may be imposed under
federal or state securities laws. There are no agreements affecting the Shares
or agreements or other restrictions preventing or impairing the Company from
performing his obligations under this Agreement. The consummation of the
transactions herein contemplated will not result in a breach or default of the
terms and provisions of the Operating Agreement or Certificate of Formation of
the Company or any stock pledge, guaranty, loan or other agreement to which the
Company is a party, or of any order, rule or regulation of any court, regulation
body or administrative agency applicable to the Company.

     (b)  Enforceability of Agreement.  This Agreement has been duly executed
and delivered by the Company and is a legal, valid and binding agreement of the
Company enforceable against it in accordance with its terms. All consents,
approvals, orders, or authorizations of, or registrations, qualifications,
designations or filings with any federal or state governmental authority on the
part of the Company required in connection with the consummation of the
transactions contemplated herein shall have been obtained prior to and shall be
effective as of the Closing.

4.  COUNTERPARTS.  This Agreement may be executed in counterparts, each of which
will be deemed an original but all of which will be deemed one instrument.

5.  EXPENSES AND TAXES.  The Company shall pay any and all stamp and other taxes
payable or determined to be payable in connection with the execution, delivery
and performance of this Agreement, and other instruments and documents to be
delivered hereunder and agrees to save SIMC harmless from and against any and
all liabilities with respect to or resulting from any delay in paying or
omission to pay such taxes and filing fees.

6.  SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  All representations and
warranties made in this Agreement shall survive the execution and delivery of
this Agreement.

7.  PRIOR AGREEMENTS.  This Agreement constitutes the entire agreement between
the parties with respect to the sale of the Shares, and supersedes any prior
understandings or agreements, whether oral or written, concerning the subject
matter hereof.

8.  SEVERABILITY.
The invalidity or unenforceability of any provision hereof shall in no way
affect the validity or enforceability of any other provision.

                                                                   June 17, 1998

                                       2
<PAGE>
 
9.  GOVERNING LAW.  This Agreement shall be governed by, and construed in
accordance with, the laws of the Commonwealth of Massachusetts.

10.  HEADINGS.  Article, Section and subsection headings in this Agreement are
included herein for convenience of reference only and shall not constitute a
part of the Agreement for any other purpose.

11.  SEC FILINGS.  SIMC and the Company shall be obligated to file, and shall
file on a prompt and expeditious basis, all reports, forms and other filings
required to be filed with the Securities and Exchange Commission without
limitation, reports of changes in beneficial ownership on Form 4 or Schedule 13D
or 13G.

12.  CHANGES.  The terms and provisions of this Agreement may not be modified or
amended, or any of the provisions hereof waived, except pursuant to the written
consent of the parties.

13.  FURTHER ASSURANCES AND COOPERATION.  Each party shall execute and deliver
such instruments and take such other actions as the other party may reasonably
require in order to carry out the intent of this Agreement and shall cause his
or its authorized representatives to cooperate fully with the other party.

14.  SUCCESSORS AND ASSIGNS.  This Agreement shall bind and inure to the benefit
of the Company, SIMC and their respective successors and assigns.

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

                              3D OPEN MOTION, LLC



                              By:  /s/  Dennis T. Gain
                                   -------------------
                              Name:   Dennis T. Gain
                              Title:  President

                              SPACETEC IMC CORPORATION



                              By:  /s/  C. Raymond Boelig
                                   ----------------------
                              Name:  C. Raymond Boelig
                              Title:  President & Chief Operating Officer




                                                                   June 17, 1998

                                       3


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