DATA CRITICAL CORP
8-K, 1999-12-22
ELECTRONIC COMPONENTS & ACCESSORIES
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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): December 17, 1999

                           Data Critical Corporation
            (Exact name of registrant as specified in its charter)

<TABLE>
<S>                                   <C>                         <C>
        Delaware                             333-78059                 91-1901482
(State or other jurisdiction of       (Commission File No.)           (IRS Employer
incorporation or organization)                                    Identification No.)
</TABLE>

                     19820 North Creek Parkway, Suite 100
                           Bothell, Washington 98011
                   (Address of principal executive offices)

                                 425-482-7000
             (Registrant's telephone number, including area code)
<PAGE>

Item 2.   Acquisition or Disposition Of Assets

     On December 17, 1999, Data Critical Corporation, a Delaware corporation
(the "Registrant"), pursuant to an Asset Purchase Agreement dated December 8,
      ----------
1999 (the "Agreement"), purchased substantially all of the assets of Physix,
           ---------
Inc., a Texas corporation ("Seller"). In the acquisition, the Registrant
                            ------
acquired substantially all of the business, assets and rights of Seller subject
to some of its debts. Additionally, as part of the transaction, Seller has
agreed that, for a period of two years, Seller will not conduct certain
businesses that are now or may be conducted by the Registrant.

     Under the terms of the Agreement, the Registrant issued Seller 200,000
shares of Data Critical common stock, all of which were placed in escrow. Of
these 200,000 shares, 100,000 shares will be released if not required to satisfy
Seller's indemnification obligations under the Agreement, and the other 100,000
shares (the "Contingency Shares") will only be released based upon the
achievement of certain performance milestones. If these performance milestones
are not met within one year, the number of Contingency Shares to be released to
Seller will be reduced on a sliding scale, up to the total 100,000 Contingency
Shares, and the unreleased Contingency Shares will be returned to the Registrant
for retirement. The Registrant has granted "piggyback" registration rights with
respect to the shares issued to Seller, which are subordinate to the
registration rights to which certain existing stockholders of the Registrant are
entitled. The Registrant also paid approximately $1.5 million in cash to repay
certain of Seller's liabilities, and assumed certain other Seller liabilities.
The total purchase price was agreed upon in arms' length negotiations and took
account of many factors concerning the valuation of Seller's assets. The source
of the funds to be paid by the Registrant under the Agreement is the
Registrant's cash and cash equivalents.

     There were no prior material relationships between the Registrant and
Seller or any of their respective affiliates, directors or officers, or any
associate of any such directors or officers.

     The above description of the transaction is a summary and as such is not
intended to be complete and is subject to and qualified by reference to the
agreements attached as Exhibits 2.1, 4.1 and 10.1 to this 8-K and two separate
press releases issued by the Registrant on December 9, 1999 and December 20,
1999 concerning the Registrant's acquisition of substantially all of the assets
of Seller attached hereto as exhibits 20.1 and 20.2.

     Seller is a healthcare information management system development company
that focuses on developing systems for electronic medical record applications,
which provide real-time workflow automation and clinical documentation support
to health care providers. The Registrant intends to continue such business.
<PAGE>

Item 7.   Financial Statements and Exhibits

     (a)  Financial Statements of Business Acquired.
          -----------------------------------------

          It is currently impractical for the Registrant to provide the required
financial statements. In accordance with Item 7(a)(4) of the Instructions to
Form 8-K, the Registrant will file such financial statements as soon as they are
available, and in no event later than March 1, 2000.

     (b)  Pro Forma Financial Information.
          -------------------------------

          It is currently impractical for the Registrant to provide the required
financial statements. In accordance with Items 7(a)(4) and 7(b)(2) of the
Instructions to Form 8-K, the Registrant will file such financial statements as
soon as they are available, and in no event later than March 1, 2000.

     (c)  Exhibits.
          --------

      2.1   Asset Purchase Agreement dated December 8, 1999 between the
            Registrant and Physix, Inc.

      4.1   Registration Rights Agreement dated December 17, 1999 between the
            Registrant and Physix, Inc.

      10.1  Employment Agreement dated December 8, 1999 between the Registrant
            and Thomas Giannulli

      20.1  Press Release dated December 9, 1999 announcing "Data Critical
            Corporation to Acquire Physix, Inc."

      20.2  Press Release dated December 20, 1999 announcing "Data Critical
            Corporation Completes Acquisition of Physix, Inc."
<PAGE>

                                  SIGNATURES

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


                                        DATA CRITICAL CORPORATION
                                        (Registrant)


Date:  December 22, 1999                By:   /s/ Michael E. Singer
                                              -----------------------------
                                              Michael E. Singer
                                              Vice President and Chief
                                                 Financial Officer
<PAGE>

                               INDEX TO EXHIBITS


Exhibit
Number    Description
- -------   -----------

2.1       Asset Purchase Agreement dated December 8, 1999
          between the Registrant and Physix, Inc.

4.1       Registration Rights Agreement dated December 17, 1999
          between the Registrant and Physix, Inc.

10.1      Employment Agreement dated December 8, 1999
          between the Registrant and Thomas Giannulli

20.1      Press Release dated December 9, 1999 announcing
          "Data Critical Corporation to Acquire Physix, Inc."

20.2      Press Release dated December 20, 1999 announcing
          "Data Critical Corporation Completes Acquisition
          of Physix, Inc."

<PAGE>

                                                                     EXHIBIT 2.1


                           ASSET PURCHASE AGREEMENT

                                by and between

                                 PHYSIX, INC.,

                                  as Seller,

                                      and

                          DATA CRITICAL CORPORATION,

                                   as Buyer



                           Dated: December 8, 1999
<PAGE>

                            ASSET PURCHASE AGREEMENT

                                TABLE OF CONTENTS
                                -----------------

<TABLE>
<CAPTION>
                                                                                                            Page
                                                                                                            ----
<S>                                                                                                         <C>
ARTICLE I.DEFINITIONS..................................................................................      1
          -----------
    1.1      Defined Terms.............................................................................      1
    1.2      Other Defined Terms.......................................................................      5
    1.3      Knowledge.................................................................................      6
ARTICLE II. PURCHASE AND SALE OF ASSETS................................................................      7
    2.1      Transfer of Assets........................................................................      7
    2.2      Assumption of Liabilities.................................................................      7
    2.3      Excluded Liabilities......................................................................      7
    2.4      Purchase Price; Stock Consideration.......................................................      8
    2.5      Closing Costs; Transfer Taxes and Fees....................................................      8
    2.6      Matters Relating to Buyer Common Stock....................................................      9
ARTICLE III. CLOSING...................................................................................     10
             -------
    3.1      Closing...................................................................................     10
    3.2      Conveyances at Closing....................................................................     10
ARTICLE IV. REPRESENTATIONS AND WARRANTIES OF SELLER...................................................     12
            ----------------------------------------
    4.1      Organization of Seller....................................................................     12
    4.2      Subsidiaries..............................................................................     12
    4.3      Authorization.............................................................................     12
    4.4      Absence of Certain Changes or Events......................................................     12
    4.5      No Undisclosed Liabilities................................................................     14
    4.6      Assets....................................................................................     14
    4.7      Owned Real Property.......................................................................     14
    4.8      Leased Property...........................................................................     14
    4.9      Material Contracts........................................................................     15
    4.10     Permits...................................................................................     17
    4.11     No Conflict or Violation..................................................................     17
    4.12     Financial Statements......................................................................     18
    4.13     Books and Records.........................................................................     18
    4.14     Litigation................................................................................     18
    4.15     Employees; Labor Matters..................................................................     19
    4.16     Compliance with Law.......................................................................     20
    4.17     No Brokers................................................................................     20
    4.18     No Other Agreements to Sell the Assets....................................................     20
    4.19     Intellectual Property.....................................................................     21
    4.20     Employee Benefit Plans....................................................................     23
    4.21     Transactions with Certain Persons.........................................................     25
    4.22     Tax Matters...............................................................................     25
    4.23     Insurance.................................................................................     26
</TABLE>
                                       i
<PAGE>

<TABLE>
<S>                                                                                                         <C>
    4.24     Accounts Receivable............................................................................26
    4.25     Inventory......................................................................................27
    4.26     Payments.......................................................................................27
    4.27     Customers and Suppliers........................................................................27
    4.28     Environmental Matters..........................................................................27
    4.29     Material Misstatements Or Omissions............................................................28
    4.30     Warranties and Indemnities.....................................................................28
    4.31     Fair Consideration; No Fraudulent Conveyance...................................................28
    4.32     FDA Regulation.................................................................................29
    4.33     Disclaimer.....................................................................................29
ARTICLE V...................................................................................................29
    5.1      Organization and Qualification.................................................................29
    5.2      Capitalization.................................................................................29
    5.3      Authorization of Agreement.....................................................................30
    5.4      Approvals......................................................................................30
    5.5      No Violation...................................................................................30
    5.6      Reports........................................................................................31
    5.7      Absence of Certain Changes or Events...........................................................31
    5.8      Absence of Litigation..........................................................................31
ARTICLE VI. COVENANTS OF SELLER AND BUYER...................................................................31
            ------------------------------
    6.1      Further Assurances.............................................................................32
    6.2      No Solicitation................................................................................32
    6.3      Notification of Certain Matters................................................................32
    6.4      Access; Investigation by Buyer.................................................................33
    6.5      Conduct of Business............................................................................33
    6.6      Employee Matters...............................................................................35
    6.7      State Securities Laws..........................................................................36
    6.8      Third Party Consents...........................................................................36
ARTICLE VII. CONDITIONS TO SELLER'S OBLIGATIONS.............................................................36
             ----------------------------------
    7.1      Representations, Warranties and Covenants......................................................36
    7.2      No Actions or Court Orders.....................................................................37
    7.3      Consents; Regulatory Compliance and Approval...................................................37
    7.4      Certificates...................................................................................37
    7.5      Transaction Documents..........................................................................37
    7.6      State Securities Laws..........................................................................37
    7.7      Opinion of Counsel.............................................................................37
    7.8      No Material Adverse Change.....................................................................38
    7.9      Stock Option Agreements........................................................................38
ARTICLE VIII.CONDITIONS TO BUYER'S OBLIGATIONS..............................................................38
    8.1      Representations, Warranties and Covenants......................................................38
    8.2      Consents; Regulatory Compliance and Approval...................................................38
    8.3      No Actions or Court Orders.....................................................................38
    8.4      Opinion of Counsel.............................................................................39
</TABLE>

                                      ii
<PAGE>

<TABLE>
<S>                                                                                                         <C>
    8.5      Employment Agreements.....................................................................     39
    8.6      No Material Adverse Change................................................................     39
    8.7      Certificates..............................................................................     39
    8.8      Conveyancing Documents; Transaction Documents.............................................     39
    8.9      Release of Liens..........................................................................     39
    8.10     Tax Clearance Certificate.................................................................     39
    8.11     Termination of Benefit Plans..............................................................     39
    8.12     Shareholder Approval......................................................................     40
    8.13     Escrow Agreement..........................................................................     40
    8.14     Bank Credit Agreement Modification........................................................     40
    8.15     Provider Select Contract..................................................................     40
ARTICLE IX. RISK OF LOSS; CONSENTS TO ASSIGNMENT.......................................................     40
            ------------------------------------
    9.1      Risk of Loss..............................................................................     40
    9.2      Consents to Assignment....................................................................     40
ARTICLE X. ACTIONS BY SELLER AND BUYER AFTER THE CLOSING...............................................     41
           ---------------------------------------------
    10.1     Collection of Accounts Receivable and Letters of Credit...................................     41
    10.2     Books and Records; Tax Matters............................................................     41
    10.3     Survival of Representations, Etc..........................................................     42
    10.4     Escrow and Indemnification................................................................     42
    10.5     Maintenance of Insurance..................................................................     44
    10.6     Covenant Not to Compete...................................................................     44
    10.7     Additional Shares of Buyer Common Stock...................................................     45
ARTICLE XI.MISCELLANEOUS...............................................................................     46
           -------------
    11.1     Termination...............................................................................     46
    11.2     Assignment; No Third Party Beneficiaries..................................................     47
    11.3     Notices...................................................................................     47
    11.4     Choice of Law; Venue......................................................................     48
    11.5     Entire Agreement; Amendment and Waiver....................................................     48
    11.6     Counterparts..............................................................................     49
    11.7     Severability..............................................................................     49
    11.8     Headings..................................................................................     49
    11.9     Press Releases and Public Announcements...................................................     49
    11.10    Cumulative Remedies.......................................................................     49
    11.11    Specific Performance; Attorneys' Fees.....................................................     50
    11.12    Construction..............................................................................     50
    11.13    Incorporation of Exhibits and Disclosure Schedule.........................................     50
    11.14    Confidentiality...........................................................................     50
</TABLE>
                                      iii
<PAGE>

                                   EXHIBITS

A        Form of Bill of Sale

B        Form of Assignment of Contracts and Leases

C        Form of Assumption of Contracts and Leases

D        Form of Assignment of Intellectual Property

E        Form of Assumption Agreement

F        Employment Agreements

G        Form of Escrow Agreement

H        Excluded Assets

I        Form of Registration Rights Agreement

                                      iv
<PAGE>

                           ASSET PURCHASE AGREEMENT

     THIS ASSET PURCHASE AGREEMENT (this "Agreement"), dated as of December 8,
                                          ---------
1999, is by and between PHYSIX, INC., a Texas corporation ("Seller"), and DATA
                                                            ------
CRITICAL CORPORATION, a Delaware corporation ("Buyer").  Seller and Buyer are
                                               -----
referred to herein individually as a "Party" and together as the "Parties."
                                      -----                       -------

     WHEREAS, Buyer desires to purchase from Seller, and Seller desires to sell
to Buyer, in exchange for shares of common stock, par value $.001 per share, of
Buyer (the "Buyer Common Stock"), Seller's right, title and interest in and to
            ------------------
substantially all of Seller's assets upon the terms and subject to the
conditions of this Agreement.

     NOW THEREFORE, in consideration of the representations, warranties,
covenants and other agreements contained herein and for other good and valuable
consideration, the receipt and adequacy of which is hereby acknowledged, the
parties hereto agree as follows:

                                  ARTICLE I.

                                  DEFINITIONS
                                  -----------

     1.1  Defined Terms. As used herein, the terms below shall have the
          -------------
following meanings. Any of such terms, unless the context otherwise requires,
may be used in the singular or plural, depending upon the reference.

          "Action" shall mean any action, claim, suit, litigation, proceeding,
           ------
labor dispute, arbitral action, governmental audit, inquiry, criminal
prosecution, investigation or unfair labor practice charge or complaint.

          "Affiliate" shall have the meaning set forth in the Securities
           ---------
Exchange Act of 1934, as amended, and the rules and regulations promulgated
thereunder.

          "Assets" shall mean all of Seller's right, title and interest in and
           ------
to the business, properties, assets and rights of any kind, whether tangible or
intangible, real or personal and constituting, or used or useful in connection
with, or related to, Seller's business that are owned by Seller or in which
Seller has any interest, including, without limitation, all of Seller's right,
title and interest in the following (but excluding the Excluded Assets):

               (a)  all accounts and notes receivable (whether current or non-
current), refunds, deposits, prepayments or prepaid expenses (including, without
limitation, any prepaid taxes, rentals or insurance premiums) of Seller;

               (b)  all Contract Rights pertaining to Contracts specified as
being assumed by Buyer on Schedule 4.9;
                          ------------

               (c)  all rights under Leases and Leasehold Estates;

               (d)  all Fixtures and Equipment and Leasehold Improvements;
<PAGE>

               (e)  all Inventory;

               (f)  all Books and Records;

               (g)  all Intellectual Property;

               (h)  all Permits;

               (i)  the name "Physix, Inc." and all variations thereof;

               (j)  all available supplies, sales literature, promotional
literature, customer, supplier and distributor lists and purchasing records
related to Seller's business;

               (k)  all insurance policies and all rights under or pursuant to
all warranties, representations and guarantees made by suppliers in connection
with the Assets or services furnished to Seller pertaining to Seller's business
or affecting the Assets, to the extent such warranties, representations and
guarantees are assignable;

               (l)  all deposits and prepaid expenses of Seller;

               (m)  all claims, causes of action, credits, choses in action,
rights of recovery and rights of set-off of any kind against any person or
entity, including, without limitation, any liens, security interests, pledges or
other rights to payment or to enforce payment in connection with products
delivered by Seller on or prior to the Closing Date;

               (n)  all goodwill associated with Seller's business and the
Assets, together with the right to represent to third parties that Buyer is the
successor to Seller's business; and

               (o)  all computer software programs, data and associated licenses
used in connection with Seller's business

          "Average Buyer Common Stock Price" shall mean the average of the
           --------------------------------
closing prices per share of shares of Buyer Common Stock on the Nasdaq National
Market from the date of this Agreement to the Closing Date.

          "Bank Credit Facility" shall mean that certain Amended and Restated
           --------------------
Loan and Security Agreement, dated as of August 21, 1998, by and between Seller
and Imperial Bank, as amended, modified or supplemented from time to time.

          "Books and Records" shall mean (a) all records and lists of Seller
           -----------------
pertaining to the Assets, (b) all records and lists pertaining to Seller's
business, customers, suppliers or personnel of Seller, (c) all product, business
and marketing plans of Seller and (d) all books, ledgers, files, reports, plans,
drawings and operating records of every kind maintained by Seller, but excluding
the originals of Seller's minute books, stock books and tax returns.

          "Closing Date" shall mean December 17, 1999, or, if all of the
           ------------
conditions to the obligations of the Parties to consummate the transactions
contemplated by this Agreement have

                                       2
<PAGE>

not been satisfied or waived by such date, on such mutually agreed upon later
date as soon as practicable after the satisfaction or waiver of all such
conditions.

          "Code" shall mean the Internal Revenue Code of 1986, as amended, and
           ----
the rules and regulations promulgated thereunder.

          "Contract" shall mean any agreement, contract, note, loan, evidence of
           --------
indebtedness, purchase, order, letter of credit, indenture, security or pledge
agreement, franchise agreement, undertaking, practice, covenant not to compete,
employment agreement, license, instrument, obligation or commitment to which
Seller is a party or is bound and which relates to Seller's business or the
Assets, whether oral or written, that is listed on Schedule 4.9.

          "Contract Rights" shall mean all of Seller's rights under the
           ---------------
Contracts.

          "Convertible Notes" shall mean Seller's Convertible Promissory Notes
           -----------------
dated March 9 and June 1, 1999.

          "Court Order" shall mean any judgment, decision, consent decree,
           -----------
injunction, ruling or order of any federal, state or local court or Governmental
Entity that is binding on any person or its property under applicable law.

          "Encumbrance" shall mean any claim, lien, pledge, option, charge,
           -----------
easement, security interest, deed of trust, mortgage, right-of-way,
encroachment, building or use restriction, conditional sales agreement,
encumbrance or other right of third parties, whether voluntarily incurred or
arising by operation of law, and includes, without limitation, any agreement to
give any of the foregoing in the future, and any contingent sale or other title
retention agreement or lease in the nature thereof.

          "Excluded Assets," notwithstanding any other provision of this
           ---------------
Agreement, shall mean the following assets of Seller which are not to be
acquired by Buyer hereunder:

          (a) those assets of Seller set forth on Exhibit H attached hereto;
                                                  ----------

          (b) all cash and cash equivalents held by Seller;

          (c) all Permits, but solely to the extent not transferable to Buyer;
and

          (d) all claims, causes of action, choses in action, rights of recovery
and rights of set-off of any kind against any person or entity arising out of or
relating to the Assets solely to the extent related to the Excluded Liabilities.

          "Fixtures and Equipment" shall mean all of the furniture, fixtures,
           ----------------------
furnishings, machinery, automobiles, trucks, spare parts, supplies, equipment,
tooling, molds, patterns, dies and other tangible personal property owned by
Seller and used in connection with Seller's business, wherever located and
including any such Fixtures and Equipment in the possession of any of Seller's
suppliers, including all warranty rights with respect thereto.

                                       3
<PAGE>

          "Intellectual Property" shall mean the following, including without
           ---------------------
limitation the items listed on Schedule 4.19: (a) all of Seller's patents and
patent applications and registered design and registered design applications,
registered trademarks, registered service marks, trademark and service mark
applications and unregistered trademarks and service marks, registered
copyrights, copyright applications and unregistered copyrights, technology
rights and licenses, computer software (including, without limitation, any
source or object codes therefor or documentation relating thereto), trade
secrets, schematics, franchises, know-how, computer software programs or
applications, inventions, designs, specifications, plans, drawings and all other
tangible or intangible proprietary rights, information and material; (b) all
things authored, discovered, developed, made, perfected, improved, designed,
engineered, acquired, produced, conceived or first reduced to practice by Seller
or any of its employees or agents that are embodied in, derived from or relate
to Seller's business, in any stage of development, including, without
limitation, modifications, enhancements, designs, concepts, techniques, methods,
ideas, flow charts, coding sheets, notes and all other information relating to
Seller's business; and (c) any and all design and code documentation,
methodologies, processes, trade secrets, copyrights, design information, product
information, technology, formulae, routines, engineering specifications,
technical manuals and data, drawings, inventions, know-how, techniques,
engineering work papers, and notes, development work-in-process, and other
proprietary information and materials of any kind relating to, used in, or
derived from the Assets.

          "Inventory" shall mean all of Seller's inventory held for resale and
           ---------
all of Seller's raw materials, work in process, finished products, wrapping,
supply and packaging items and similar items with respect to Seller's business,
in each case wherever the same may be located.

          "Leasehold Estates" shall mean all of Seller's rights as lessee or
           -----------------
sublessee under the Leases.

          "Leasehold Improvements" shall mean all leasehold improvements owned
           ----------------------
by Seller and situated in or on any real property subject to a Lease.

          "Leases" shall mean all existing leases and subleases to which Seller
           ------
is a party with respect to the lease of personal or real property, including
without limitation those listed on Schedule 4.8.

          "Liabilities" shall mean any direct or indirect liability,
           -----------
indebtedness, obligation, commitment, expense, claim, deficiency, guaranty or
endorsement of or by any person of any type, whether accrued, absolute,
contingent, matured, unmatured or other.

          "Material Adverse Effect" or "Material Adverse Change" shall mean with
           -----------------------      -----------------------
respect to any Party any adverse event, condition, change, circumstance or
effect that, individually or in the aggregate, is or is reasonably likely to be
materially adverse to the condition (financial or otherwise), properties,
business, results of operations, prospects, assets (including intangible
assets), Liabilities or operations or results of operations of such Party or
which would materially adversely affect the ability of such Party to consummate
the transactions contemplated hereby, or any such event or condition which
would, with the passage of time, constitute a Material Adverse Effect or
Material Adverse Change.

                                       4
<PAGE>

          "Ordinary course of business" or "ordinary course" or any similar
           ---------------------------      ---------------
phrase shall mean the ordinary course of Seller's business and consistent with
Seller's past custom and practice.

          "Permits" shall mean all licenses, permits, franchises, approvals,
           -------
authorizations, consents or orders of, or filings with, any governmental
authority, whether foreign, federal, state or local, or any other person,
necessary or desirable for the past, present or anticipated conduct of, or
relating to the operation of Seller's business.

          "Registration Rights Agreement" means the Registration Rights
           -----------------------------
Agreement between Buyer and Seller substantially in the form attached hereto as
Exhibit I.

          "Regulations" shall mean any laws, statutes, ordinances, regulations,
           -----------
rules, notice requirements, court decisions, agency guidelines, principles of
law and orders of any foreign, federal, state, local, municipal or foreign
government and any other governmental department or agency, including, without
limitation, Environmental Laws, energy, motor vehicle safety, public utility,
zoning, building and health codes, occupational safety and health and laws
respecting employment practices, employee documentation, terms and conditions of
employment and wages and hours.

          "Representative" shall mean any officer, director, principal,
           --------------
attorney, agent, employee or other representative.

          "Securities Act" shall mean the Securities Act of 1933, as amended,
           --------------
and the rules and regulations promulgated thereunder.

          "September 30 Balance Sheet" shall mean the unaudited balance sheet
           --------------------------
dated September 30, 1999 of Seller, prepared by Seller and delivered to Buyer
prior to the date hereof.

          "Tax" or "Taxes" shall mean all taxes, charges, fees, levies or other
           ---      -----
similar assessments or liabilities, including, without limitation, income, gross
receipts, ad valorem, premium, value-added, excise, real property, personal
property, sales, use, transfer, withholding, employment, payroll and franchise
taxes imposed by the United States of America or any state, local or foreign
Governmental Entity, or other political subdivision of the United States or any
such government, and any interest, fines, penalties, assessments or additions to
tax resulting from, attributable to or incurred in connection with any tax or
any contest or dispute thereof.

          "Tax Returns" shall mean all reports, returns, declarations,
           -----------
statements or other information required to be supplied to a taxing authority in
connection with Taxes.

          "Warrants" shall mean (a) agreements, rights to subscribe (including
           --------
any preemptive rights), options, warrants, calls, commitments or rights of any
character to purchase or otherwise acquire any common stock or other equity
securities of Seller, and (b) outstanding securities of Seller that are
convertible into or exchangeable for capital shares or other equity securities
of Seller.

     1.2  Other Defined Terms The following terms shall have the meanings
          -------------------
defined for such terms in the sections of this Agreement set forth below:

                                       5
<PAGE>

          Agreement.................................  Preamble
          Assumed Liabilities.......................  Section 2.2
          Assumption Agreement......................  Section 3.2(b)(ii)
          Buyer.....................................  Preamble
          Buyer Common Stock........................  Recitals
          Buyer SEC Documents.......................  Section 2.7(d)(ii)
          Buyer Stock Options.......................  Section 6.6(e)
          By-laws...................................  Section 4.1
          CERCLA....................................  Section 4.28(a)
          Charter...................................  Section 4.1
          Claim.....................................  Section 10.4(b)
          Claim Notice..............................  Section 10.4(b)
          Closing...................................  Section 3.1
          Damages...................................  Section 10.4(a)
          Disclosure Schedule.......................  Article IV
          Employee Benefit Plan.....................  Section 4.20(b)(i)
          Environmental Law.........................  Section 4.28(a)
          ERISA.....................................  Section 4.20(b)(i)
          ERISA Affiliate...........................  Section 4.20(b)(ii)
          Escrow Agent..............................  Section 2.4(b)
          Escrow Agreement..........................  Section 3.2(b)
          Escrow Shares.............................  Section 2.4(a)
          Escrow Fund...............................  Section 10.4(b)
          Escrow Termination Date...................  Section 10.4(a)
          Excluded Liabilities......................  Section 2.3
          Financial Statements......................  Section 4.12
          GAAP......................................  Section 4.12
          Governmental Entity.......................  Section 4.11
          Hazardous Materials.......................  Section 4.28(b)
          Indemnified Parties.......................  Section 10.4(a)
          Millenial Dates...........................  Section 4.19(h)
          Party.....................................  Preamble
          Proposed Acquisition Transaction..........  Section 6.2
          Purchase Price............................  Section 2.4(a)
          Rehired Employees.........................  Section 6.6(a)
          Subordinated Note.........................  Section 2.2(c)
          Third Party Intellectual Property Rights..  Section 4.19(a)
          Transaction Documents.....................  Section 4.3

     1.3  Knowledge. Whenever a representation or warranty of Seller set forth
          ---------
in this Agreement is qualified by "to the best of Seller's knowledge," or a
similar phrase, it is intended to refer to those matters which are actually
known by the persons listed on Schedule 1.3.
                               ------------

                                       6
<PAGE>

                                  ARTICLE II.
                          PURCHASE AND SALE OF ASSETS

     2.1  Transfer of Assets. Upon the terms and subject to the conditions
          ------------------
contained herein, at the Closing, Seller will sell, convey, transfer, assign and
deliver (or cause to be sold, assigned, granted, transferred and delivered) to
Buyer, and Buyer will acquire from Seller, the Assets, free and clear of all
Encumbrances.

     2.2  Assumption of Liabilities. Upon the terms and subject to the
          -------------------------
conditions contained herein, at the Closing, Buyer shall assume the following
liabilities of Seller (the "Assumed Liabilities"):
                            ------- -----------

          (a)  Seller's payment liabilities under the Bank Credit Facility with
Imperial Bank up to a maximum of $800,000;

          (b)  the liabilities set forth on Schedule 2.2 to the extent set forth
                                            ------------
thereon; and

          (c)  the liabilities and obligations of Seller arising under the
Contracts specified in Schedule 4.9 as being assumed by Buyer, other than the
liabilities attributable to any failure by Seller to comply with the terms
thereof.

     2.3  Excluded Liabilities. Except for those liabilities expressly assumed
          --------------------
by Buyer pursuant to Section 2.2, Buyer shall not assume and shall not be liable
for, and Seller shall retain and remain solely liable for and obligated to
discharge, all of the debts, contracts, agreements, commitments, obligations and
other liabilities of any nature whatsoever of Seller, whether known or unknown,
accrued or not accrued, fixed or contingent, including without limitation, the
following:

          (a)  Any liability for breaches by Seller on or prior to the Closing
Date of any Contract or any other instrument, contract or purchase order or any
liability for payments or amounts due under any Contract or any other
instrument, contract or purchase order on or prior to the Closing Date;

          (b)  Any liability or obligation for Taxes attributable to or imposed
upon Seller, or attributable to or imposed upon the Assets for any period (or
portion thereof) through the Closing Date, including, without limitation, any
Taxes attributable to or arising from the transactions contemplated by this
Agreement;

          (c)  Any liability or obligation for or in respect of any loan, other
indebtedness for money borrowed, or account payable of Seller, including any
such liabilities owed to Seller;

          (d)  Any liability or obligation arising as a result of any legal or
equitable action or judicial or administrative proceeding initiated at any time,
to the extent relating to any action or omission on or prior to the Closing Date
by or on behalf of Seller, including, without limitation, any liability for
infringement of intellectual property rights, breach of product warranty, injury
or death caused by products, violations of federal or state securities or other
laws or liability for lawsuits by employees or former employees of Seller;

                                       7
<PAGE>

          (e)  Any liability or obligation arising on or prior to the Closing
Date out of any "employee benefit plan," as such term is defined by the Employee
Retirement Income Security Act of 1974 ("ERISA") or other employee benefit
                                         -----
plans;

          (f)  Any liability or obligation for making payments of any kind
(including but not limited to as a result of the sale of Purchased Assets or as
a result of the termination of employment by Seller of employees, or other
claims arising out of the terms and conditions, under written contract or
otherwise, of employment with Seller, or for vacation or severance pay or
otherwise) to employees of Seller or in respect of payroll taxes for employees
of Seller;

          (g)  Any liability of Seller incurred in connection with the making or
performance of this Agreement and the transactions contemplated hereby;

          (h)  Any liability of Seller arising out of the violation of or
failure to comply with any Environmental Regulations (as hereinafter defined)
applicable to any aspect of Seller's business; and

          (i)  Any costs or expenses of Seller incurred in connection with
shutting down, deinstalling and removing equipment not purchased by Buyer, and
the costs associated with all contracts and agreements not assumed by Buyer.

     2.4  Purchase Price; Stock Consideration.
          -----------------------------------

               (a)  The purchase price (the "Purchase Price") for the Assets
purchased pursuant to this Agreement shall be payable at the Closing in full and
shall consist of the following: (i) that number of shares (the "Escrow Shares")
of Buyer Common Stock as determined pursuant to Section 2.4(b) of this Agreement
and (ii) forgiveness by Buyer of all amounts owing by Seller to Buyer under
outstanding promissory notes from Seller to Buyer dated November 26, 1999 and
December, 1999.

               (b)  The aggregate number of Escrow Shares deliverable to an
escrow agent to be selected by mutual agreement of the parties (the "Escrow
Agent") at the Closing in partial payment of the Purchase Price shall equal
200,000 shares, except as such amount may be increased pursuant to Section 10.7,
unless the Average Buyer Common Stock Price is greater than $22.50 per share, in
which case the aggregate number of shares deliverable under Section 2.4(a) above
shall be equal to (i) $4,500,000 divided by (ii) the Average Buyer Common Stock
Price, except as such amount may be increased pursuant to Section 10.7.

               (c)  For federal income tax purposes, the parties anticipate that
this transaction will be treated as a reorganization within the meaning of
Section 368(a)(1)(C) of the Code.

     2.5 Closing Costs; Transfer Taxes and Fees. Seller shall be responsible for
         --------------------------------------
any documentary and transfer taxes and any sales, use or other taxes imposed by
reason of the transfers of Assets provided hereunder and any deficiency,
interest or penalty asserted with respect thereto. Buyer shall pay the fees and
costs of recording or filing all applicable conveyancing instruments described
in Section 3.2(a) of this Agreement. Buyer shall pay all

                                       8
<PAGE>

costs of applying for new Permits and obtaining the transfer of existing Permits
which may be lawfully transferred.

     2.6  Matters Relating to Buyer Common Stock.
          ---------------------------------------

               (a)  Seller is aware that (i) the shares of Buyer Common Stock to
be issued to Seller pursuant to this Agreement will not be registered and will
not be issued pursuant to a registration statement under the Securities Act but
will instead be issued in reliance on the exemption from registration set forth
in Section 4(2) of the Securities Act and in Regulation D, Rule 506 under the
Securities Act and (ii) the issuance of such shares of Buyer Common Stock has
not been approved or reviewed by the Securities and Exchange Commission or by
any other Governmental Entity.

               (b)  Seller acknowledges and agrees that, because the shares of
Buyer Common Stock to be issued pursuant to this Agreement will not be
registered under the Securities Act, such shares can not be resold unless they
are registered under the Securities Act or unless an exemption from registration
is available. Seller further acknowledges and agrees that (i) Buyer is under no
obligation to file a registration statement with respect to such shares of Buyer
Common Stock to be issued pursuant to this Agreement, and (ii) the provisions of
Rule 144 under the Securities Act will permit resale of shares of Buyer Common
Stock to be issued to Seller pursuant to this Agreement only under limited
circumstances and that such shares must be held by the Affiliate for at least
one (1) year before they can be freely sold pursuant to Rule 144 under the
Securities Act unless such are registered pursuant to a registration statement
under the Securities Act.

               (c)  Seller represents and warrants that (i) the shares of Buyer
Common Stock to be issued to Seller pursuant to this Agreement are being
acquired by Seller for investment and for its own account, and not with a view
to, or for resale in connection with, any unregistered distribution thereof;
(ii) Seller has requested and received, reviewed and considered all the
information Seller considers necessary to enable it to make an informed decision
to invest in shares of Buyer Common Stock, including Buyer's Form S-1
Registration Statement No. 333-78059 effective November 9, 1999, and other
publicly-available filings with the SEC (the "Buyer SEC Documents"); (iii)
                                              -------------------
Seller's Affiliates, Representatives and advisors have been given the
opportunity (A) to ask questions of, and to receive answers from,
Representatives of Buyer concerning the terms and conditions of the contemplated
issuance of shares of Buyer Common Stock to Seller, and the business,
properties, prospects and financial condition of Buyer and (B) to obtain any
additional information (to the extent Buyer possesses such information or is
able to acquire it without unreasonable effort or expense and without breach of
confidentiality obligations) necessary to verify the accuracy of the information
set forth in the Buyer SEC Documents; (iv) Seller is knowledgeable,
sophisticated and experienced in making, and is qualified to make, decisions
with respect to investments in securities presenting investment decisions
similar to that involved in Seller's contemplated investment in shares of Buyer
Common Stock to be issued pursuant to this Agreement; (v) Seller understands and
has fully considered the risks of acquiring and owning shares of Buyer Common
Stock and further understands that (A) an investment in shares of Buyer Common
Stock is a speculative investment which involves a high degree of risk and is
suitable only for an investor who is able to bear the economic consequences of
losing the entire investment, and (B) there are substantial

                                       9
<PAGE>

restrictions on the transferability of the shares of Buyer Common Stock to be
issued pursuant to this Agreement and, accordingly, it may not be possible for
Seller to liquidate its investment in such shares (in whole or in part) in the
case of emergency; and (vi) Seller is able to hold shares of Buyer Common Stock
for a substantial period of time and to afford a complete loss of the its
investment in such shares.

               (d)  Seller understands that stop transfer instructions will be
given to Buyer's transfer agent with respect to the shares of Buyer Common Stock
to be issued to Seller pursuant to this Agreement, and that there will be placed
on the certificate or certificates representing such shares the following legend
(together with any other legend or legends required by applicable state
securities or "blue sky" laws or otherwise):

          THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE BEEN ACQUIRED FOR
          INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
          1933, AS AMENDED. THE SHARES REPRESENTED BY THIS CERTIFICATE MAY NOT
          BE OFFERED, SOLD OR OTHERWISE TRANSFERRED IN THE ABSENCE OF SUCH
          REGISTRATION WITHOUT AN EXEMPTION UNDER SUCH ACT OR AN OPINION OF
          LEGAL COUNSEL REASONABLY ACCEPTABLE TO THE COMPANY THAT SUCH
          REGISTRATION IS NOT REQUIRED.

Upon delivery to Buyer of a legal opinion by counsel to the holder of such
certificate, reasonably satisfactory in form and substance to Buyer, stating
that the shares of Buyer Common Stock represented by such certificate may be
offered, sold and delivered in the United States without restrictions under the
United States securities laws, such certificate shall be reissued without the
foregoing legend.

                                 ARTICLE III.

                                    CLOSING
                                    -------

     3.1  Closing. The closing of the transactions contemplated by this
          -------
Agreement (the "Closing") shall take place at the offices of Venture Law Group,
                -------
4750 Carillon Point, Kirkland, WA 98033, commencing at 10:00 a.m. local
time on the Closing Date.

     3.2  Conveyances at Closing.
          -----------------------

               (a)  Seller's Deliveries. To effect the sale and transfer of
                    -------------------
Assets referred to in Section 2.1 of this Agreement, upon the terms and subject
to the conditions contained herein, at the Closing Seller shall duly execute and
deliver to Buyer:

                    (i)  one or more bills of sale, in the form attached hereto
as Exhibit A, conveying in the aggregate all of Seller's owned personal property
   ---------
included in the Assets;

                                       10
<PAGE>

                    (ii) subject to Section 9.2 of this Agreement, an Assignment
of Contracts and Leases in the form attached hereto as Exhibit B with respect to
                                                       ---------
Contracts, including Contract Rights, and Leases;

                    (iii)  an Assignment of Intellectual Property in the form
attached hereto as Exhibit D, in recordable form to the extent necessary to
                   ---------
assign such rights;

                    (iv) the various certificates, instruments, opinions of
counsel and other documents referred to in Article VIII hereof;

                    (v)  reasonable evidence of valid title to such of the
Assets as Buyer may request in writing prior to the Closing, in form and
substance reasonably satisfactory to Buyer; and

                    (vi) such other instruments as shall be requested by Buyer
necessary to vest in Buyer title in and to the Assets in accordance with the
provisions of this Agreement.

               (b)  Buyer's Deliveries to Escrow Agent. Upon the terms and
                    ----------------------------------
subject to the conditions contained herein, at the Closing Buyer shall duly
execute and deliver to the Escrow Agent certificates for the shares of Buyer
Common Stock issuable as payment of a portion of the Purchase Price in
accordance with Section 2.4 of this Agreement, which shares shall be subject to
the provisions of the Escrow Agreement attached as Exhibit G to this Agreement
                                                   --------
(the "Escrow Agreement"):

               (c)  Buyer's Deliveries to Seller. Upon the terms and subject to
                    ----------------------------
the conditions contained herein, at the Closing Buyer shall duly execute and
deliver to Seller:

                    (i)   an instrument of assumption substantially in the form
attached hereto as Exhibit E, evidencing Buyer's assumption, pursuant to Section
                   ---------
2.2 of this Agreement, of the Assumed Liabilities (the "Assumption Agreement");
                                                        --------------------
                    (ii)  executed counterparts to the Assignment of Contracts
and Leases and the Assignment of Intellectual Property; and

                    (iii)  the various certificates, instruments and other
documents referred to in Article VII hereof.

               (d)  Form of Instruments. To the extent that a form of any
                    -------------------
document to be delivered hereunder is not attached as an exhibit to this
Agreement, such documents shall be in form and substance, and shall be executed
and delivered in a manner, reasonably satisfactory to Buyer.

               (e)  Consents. Subject to Section 9.2 of this Agreement, Seller
                    --------
shall deliver all Permits and any other third party consents required for the
valid transfer of the Assets as contemplated by this Agreement.

                                       11
<PAGE>

                                  ARTICLE IV.

                   REPRESENTATIONS AND WARRANTIES OF SELLER
                   ----------------------------------------

     Seller hereby represents and warrants to Buyer that, except as otherwise
set forth in the Disclosure Schedule (the "Disclosure Schedule") delivered by
                                           -------------------
Seller to Buyer as of the date hereof (which shall list any exceptions by
specific reference to the applicable section and subsection of this Article IV),
the representations and warranties set forth in this Article IV are, as of the
date hereof, and will be, as of the Closing Date, true and correct:

     4.1  Organization of Seller. Seller is a corporation duly organized,
          ----------------------
validly existing and in corporate good standing under the laws of the State of
Texas. Seller is duly qualified to conduct business and is in corporate good
standing under the laws of each jurisdiction in which the nature of its
businesses or the ownership or leasing of its properties requires such
qualification, except where the failure to be so qualified or in good standing
would not have a Material Adverse Effect on Seller. Seller has the corporate
power and authority to carry on the businesses in which it is engaged and to own
and use the properties owned and used by it. Seller has furnished to Buyer true
and complete copies of its Articles of Incorporation and By-laws, each as
amended and as in effect on the date hereof (hereinafter "Charter" and
                                                          -------
"By-laws," respectively). Seller is not in default under or in violation of any
 -------
provision of its Charter or By-laws, each as amended to date.

     4.2  Subsidiaries. Seller does not have any direct or indirect subsidiaries
          ------------
or any other equity interest in any other firm, corporation, partnership, joint
venture, association or other business organization.

     4.3  Authorization. Seller has all requisite corporate power and authority
          -------------
to execute and deliver this Agreement and the other documents, agreements,
certificates and other instruments to be executed, delivered and performed in
connection with the transactions contemplated by this Agreement, the Escrow
Agreement and the Registration Rights Agreement (collectively the "Transaction
                                                                   -----------
Documents") to which it is a party and to perform its obligations hereunder and
- ---------
thereunder. The execution and delivery of this Agreement and each of the other
Transaction Documents to which Seller is a party and the performance by Seller
of its obligations hereunder and thereunder, and the consummation by Seller of
the transactions contemplated hereby and thereby have been duly and validly
authorized by all necessary corporate action on the part of Seller. Each of this
Agreement and the other Transaction Documents has been duly and validly executed
and delivered by Seller and, assuming the due authorization, execution and
delivery by Buyer, constitutes a valid and binding obligation of Seller,
enforceable against Seller in accordance with its terms, except as such
enforcement may be limited by bankruptcy, insolvency, fraudulent conveyance,
reorganization, moratorium and other similar laws affecting the enforcement of
creditors' rights generally, and except that the availability of equitable
remedies, including specific performance, is subject to the discretion of the
court before which any proceeding therefor may be brought.

     4.4  Absence of Certain Changes or Events. Except as disclosed on
          ------------------------------------
Schedule 4.4, since September 30, 1999, Seller has conducted its business in the
- ------------
ordinary course, including, without limitation, so as to preserve intact
Seller's business, to keep available to Buyer the services of

                                       12
<PAGE>

Seller's employees and to preserve the goodwill of Seller's customers and others
having business relations with Seller, and there has not occurred any change,
event or condition (whether or not covered by insurance) that has resulted in,
or might reasonably be expected to result in any Material Adverse Effect (as
defined) on Seller: Since September 30, 1999, Seller:

          (a)  has not created, incurred or assumed (i) any borrowings under
capital leases, or (ii) any obligation which in any material way affect Seller's
business, the Assets or Buyer's ability to conduct Seller's business in
substantially the same manner and condition as conducted by Seller on the date
of this Agreement;

          (b)   has not changed in any manner the compensation of, or agreed to
provide additional benefits to, or enter into any employment agreement with, any
employee;

          (c)   has maintained insurance coverage in amounts adequate to cover
the reasonably anticipated risks of the business conducted with the Assets;

          (d)   has not acquired or agreed to acquire by merging or
consolidating with, or by purchasing any assets or equity securities of, or by
any other manner, any business or any corporation, partnership, association or
other business organization or division thereof, or otherwise acquire or agree
to acquire any assets which are material, individually or in the aggregate, to
Seller's business.

          (e)   has not sold, disposed of or encumbered any of the Assets or
licensed any Assets to any third party except for the sale of Inventory in the
normal course of business consistent with past practice;

          (f)   has not engaged in any special promotion which promotes the sale
of Inventory with highly discounted terms;

          (g)   has not entered into any agreements or commitments relating to
the business conducted with the Assets, except on commercially reasonable terms
in the ordinary course of business;

          (h)   has complied in all material respects with all laws and
regulations applicable to Seller's business;

          (i)   has not entered into any agreement with any third party for the
distribution of any of the Assets;

          (j)   has not changed or announced any change to the products or
services sold by Seller's business except with Buyer's written consent or at
Buyer's request;

          (k)   has not violated, amended or otherwise change in any way the
terms of any of the Contracts;

          (l)   has not commenced a lawsuit related to or involving the Assets
other than for the routine collection of bills;

                                       13
<PAGE>

          (m)  has not assigned, sold or otherwise conveyed to any third party,
any of its accounts receivable prior to the Closing Date; or

          (n)  made any agreement to do any of the foregoing.

     4.5  No Undisclosed Liabilities. Except as disclosed on Schedule 4.5,
          --------------------------                         ------------
Seller has no liability (whether known or unknown, whether absolute or
contingent, whether liquidated or unliquidated and whether due or to become
due), except for: (a) liabilities accrued or reserved against on the September
30 Balance Sheet; (b) liabilities which have arisen since September 30, 1999, in
the ordinary course of business and which are similar in nature and amount to
the liabilities which arose during the comparable period of time in the
immediately preceding fiscal period; (c) liabilities incurred in the ordinary
course of business which are consistent with past practice and are not required
by GAAP to be reflected on a balance sheet; and (d) liabilities which
individually or in the aggregate would not result in a Material Adverse Effect
on Seller.

     4.6  Assets. Seller has and will transfer good and marketable title,
          ------
license to or leasehold interest in the Assets and upon the consummation of the
transactions contemplated hereby, Buyer will acquire good and marketable title,
license to or leasehold interest in to all of the Assets, free and clear of any
Encumbrances. The Assets include without limitation all assets necessary for the
conduct of Seller's business as presently conducted and as presently proposed to
be conducted. Schedule 4.6 contains accurate lists and summary descriptions of
              ------------
all tangible Assets where the value of an individual item or an aggregate of
similar items exceeds $25,000. Except for Imperial Bank's security interest
pursuant to the Bank Credit Facility and as otherwise described on
Schedule 4.8(a), none of the Assets that constitute tangible personal property
- ---------------
are held under any lease, security agreement, conditional sales contract, lien,
or other title retention or security arrangement. All tangible assets and
properties which are part of the Assets are in good operating condition and
repair and are usable in the ordinary course of business and conform in all
material respects to all applicable Regulations (including Environmental Laws)
relating to their construction, use and operation. Except as provided in this
Agreement, no restrictions will exist on Buyer's right to sell, resell, license
or sublicense any of the Assets or engage in Seller's business, nor will any
such restrictions be imposed on Buyer as a consequence of the transactions
contemplated by this Agreement or by any agreement referenced in this Agreement.

     4.7  Owned Real Property. Seller does not own any real property.
          -------------------

     4.8  Leased Property.
          ---------------

               (a)  Schedule 4.8(a) lists all Leases.  Seller has delivered to
                    ---------------
Buyer correct and complete copies of such Leases (as amended to date). With
respect to each Lease:

                    (i)  such Leases are legal, valid, binding, enforceable and
in full force and effect with respect to Seller and, to Seller's knowledge, is
legal, valid, binding, enforceable and in full force and effect with respect to
each other party thereto, and will continue to be so following the Closing in
accordance with the terms thereof as in effect prior to the Closing, in each
case except as such enforcement may be limited by bankruptcy, insolvency,
fraudulent conveyance, reorganization, moratorium and other similar laws
affecting the

                                       14
<PAGE>

enforcement of creditors' rights generally, and except that the availability of
equitable remedies, including specific performance, is subject to the discretion
of the court before which any proceeding therefor may be brought;

                    (ii)  Seller and, to Seller's knowledge, no other party to
any Lease is in breach or default thereunder and no event has occurred which,
with notice or lapse of time, would constitute a breach or default or permit
termination, modification, or acceleration thereunder;

                    (iii) there are no disputes, oral agreements or forbearance
programs in effect as to such Lease;

                    (iv)  Seller has not assigned, transferred, conveyed,
mortgaged, deeded in trust or imposed or granted any Encumbrance on any interest
in the Leasehold Estate;

                    (v)   Seller enjoys peaceful and undisturbed possession of
all the property subject to such Lease, subject to the rights of the fee owners;
and

                    (vi)  No violation of any law, regulation or ordinance,
including without limitation, laws, regulations or ordinances relating to
zoning, environmental, city planning or similar matters) relating to Seller's
business or any Asset currently exists or has existed at any time except for
violations which have not had and would not reasonably be expected to have,
individually or in the aggregate, a Material Adverse Effect on Seller's business
or the Assets. There are no developments affecting any of the Assets pending or,
to the knowledge of Seller threatened, which might materially detract from the
value of such Assets, materially interfere with any present or intended use of
any such Assets or have a Material Adverse Effect on the marketability of the
Assets.

               (b)  The Leasehold Improvements and all Fixtures and Equipment
and other tangible assets owned, leased or used by Seller are (i) insured to the
extent and in a manner customary in Seller's industry, (ii) structurally sound
with no material defects known to Seller, (iii) in good operating condition and
repair, subject to ordinary wear and tear, (iv) not in need of maintenance,
repair or correction except for routine maintenance and repair in the ordinary
course, the cost of which would not be material, and (v) in conformity in all
material respects with all applicable Regulations and Court Orders.

     4.9  Material Contracts.
          ------------------

               (a)  Schedule 4.9(a) sets forth a complete and accurate list of
                    ---------------
the all Contracts that are material to Seller's business, including without
limitation the following:

                    (i)   Contracts involving more than $10,000 over the term of
the Contract, not entered into in the ordinary course of business or that cannot
be canceled without penalty or further payment of less than $10,000;

                    (ii)  Contracts for the licensing or distribution of
software, products or other personal property or for the furnishing or receipt
of services: (i) which call for performance by Seller over a period of more than
one year (excluding end users' contracts);

                                       15
<PAGE>

(ii) which involve more than the sum of $10,000; or (iii) in which Seller has
granted rights to license, sublicense or copy, "most favored nation" pricing
provisions or exclusive marketing or distribution rights relating to any
products or territory or has agreed to purchase a minimum quantity of goods or
services or has agreed to purchase goods or services exclusively from a certain
party;

                    (iii) Contracts relating to (A) the establishment of a
partnership or joint venture, (B) distribution, franchise, license, technical
assistance, support service, maintenance, sales, commission, consulting, agency
or advertising in connection with the Assets or Seller's business, including any
commitment by Seller to any third party with respect to any of the foregoing for
more than one year from the date of this Agreement, (C) options with respect to
any property, real or personal, whether Seller shall be the grantor or grantee
thereunder, (D) commission arrangements with third parties, and (E)
confidentiality or non-competition or any other agreement limiting the freedom
of Seller or any officer, director, shareholder or Affiliate of Seller, to
engage in any line of business or compete with any person other than Seller
(including a list of all parties to such agreements);

                    (iv)  Employment contracts and severance agreements,
including, without limitation, Contracts (A) to employ or terminate executive
officers or other personnel and other contracts with present or former officers,
directors or shareholders of Seller or (B) that will result in the payment by,
or the creation of any Liability to pay on behalf of Buyer or Seller any
severance, termination, "golden parachute," or other similar payments to any
present or former personnel following termination of employment or otherwise as
a result of the consummation of the transactions contemplated by this Agreement;

                    (v)   Promissory notes, loans, agreements, indentures,
evidences of indebtedness, letters of credit, guarantees, or other instruments
relating to an obligation to pay money, pursuant to which Seller has created,
incurred, assumed, or guaranteed (or may create, incur, assume, or guarantee)
Liabilities (including capitalized lease obligations) involving more than
$25,000 or under which it has granted or imposed (or may grant or impose) an
Encumbrance on any of its assets, tangible or intangible; and

                    (vi)  any other material contract or agreement, as such
terms are defined in Regulation S-K promulgated under the Securities Act, to
which Seller is a party and any other Contract under which the consequences of a
breach, default or termination could have a Material Adverse Effect on Seller.

               (b)  Seller has delivered to Buyer a correct and complete copy of
each Contract (as amended to date) listed in Schedule 4.9(a). With respect to
                                             ---------------
each Contract so listed: (i) the Contract is legal, valid, binding and
enforceable and in full force and effect with respect to Seller and, to Seller's
knowledge, the written arrangement is legal, valid, binding and is enforceable
and in full force and effect with respect to each other party thereto, in each
case except as such enforcement may be limited by bankruptcy, insolvency,
fraudulent conveyance, reorganization, moratorium and other similar laws
affecting the enforcement of creditors' rights generally, and except that the
availability of equitable remedies, including specific performance, is subject
to the discretion of the court before which any proceeding therefor may be
brought; (ii) the Contract will continue to be legal, valid, binding and
enforceable and in full force and

                                       16
<PAGE>

effect immediately following the Closing in accordance with the terms thereof as
in effect prior to the Closing and does not require the consent of any party to
the transactions contemplated hereby except as disclosed on Schedule 4.9(b); and
                                                            ---------------
(iii) Seller is not in breach or default, to Seller's knowledge, no other party
thereto is in breach or default, and, to Seller's knowledge, no event has
occurred which with notice or lapse of time would constitute a breach or default
or permit termination, modification, or acceleration, under the written
arrangement. Seller is not a party to any oral contract, agreement or other
arrangement which, if reduced to written form, would be required to be listed on
Schedule 4.9(a). There are no outstanding powers of attorney executed on behalf
- ---------------
of Seller.

               (c)  Each of the products and services produced, sold or provided
by Seller in connection with Seller's business is, and at all times has been, in
compliance in all material respects with all applicable federal, state, local
and foreign laws and regulations and is, and at all relevant times has been, fit
for the ordinary purposes for which it is intended to be used and conforms in
all material respects to any promises or affirmations of fact made in connection
with the sale of such product or service. There is no design defect with respect
to any of such products, and each of such products contains adequate warnings,
presented in a reasonably prominent manner, in accordance with applicable laws
and current industry practice with respect to its contents and use. Seller has
committed no act, and there has been no omission, which may result in, and to
Seller's knowledge there has been no occurrence which may give rise to, product
liability or Liability for breach of warranty (whether covered by insurance or
not) on the part of Seller, with respect to products designed, manufactured,
assembled, repaired, maintained, delivered or installed or services rendered
prior to or on the Closing Date.

     4.10 Permits. Schedule 4.10 sets forth a complete list of all Permits used
          -------  -------------
in the operation of Seller's business or otherwise issued to or held by Seller.
Seller has, and at all times has had, all Permits required under any Regulation
(including Environmental Laws) in the operation of its business or in the
ownership of the Assets, and owns or possesses such Permits free and clear of
all Encumbrances. Such listed Permits are the only Permits that are required for
Seller to conduct its business as presently conducted, except for those the
absence of which would not have a Material Adverse Effect on Seller. Each such
Permit is in full force and effect (and will continue in full force and effect
following the Closing) and Seller is not in default, nor has it received any
notice of any claim of default, with respect to any such Permit. Except as
otherwise governed by law, all such Permits are renewable by their terms or in
the ordinary course of business without the need to comply with any special
qualification procedures or to pay any amounts other than routine filing fees
and will not be adversely affected by the completion of the transactions
contemplated by this Agreement. No present or former shareholder, director,
officer or employee of Seller or any Affiliate thereof, or any other person,
firm, corporation or other entity, owns or has any proprietary, financial or
other interest (direct or indirect) in any Permit which Seller owns, possesses
or uses.

     4.11 No Conflict or Violation. Subject to compliance with the applicable
          ------------------------
requirements of the Securities Act and any applicable state securities laws,
neither the execution and delivery of this Agreement and the other Transaction
Documents by Seller, nor the consummation by Seller of the transactions
contemplated hereby or thereby, will: (a) conflict with or violate any provision
of the Charter or By-laws of Seller; (b) require on the part of Seller any
filing with, or any permit, authorization, consent or approval of, any court,
arbitral tribunal, administrative

                                       17
<PAGE>

agency or commission or other governmental or regulatory authority or agency (a
"Governmental Entity"); (c) conflict with, result in a breach of, constitute
 -------------------
(with or without due notice or lapse of time or both) a default under, result in
the acceleration of, create in any party the right to accelerate, terminate,
modify or cancel, or require any notice, consent or waiver under, any Contract,
Lease, license, sublicense, franchise, permit, indenture, agreement or mortgage
for borrowed money, instrument of indebtedness or other arrangement to which
Seller is a party or by which Seller is bound or to which any of the Assets is
subject; (d) result in the imposition of any Encumbrance upon any of the Assets;
or (e) violate any order, writ, injunction, decree, statute, rule or regulation
applicable to Seller or any of the Assets. No notice to, declaration, filing or
registration with, or Permit from, any domestic or foreign governmental or
regulatory body or authority, or any other person or entity (except as disclosed
in Schedule 4.9(b) and except for approval by Seller's Shareholders), is
   ---------------
required to be made or obtained by Seller in connection with the execution,
delivery or performance of this Agreement and the consummation of the
transactions contemplated hereby. No "bulk sales" legislation applies to the
transactions contemplated by this Agreement.

     4.12 Financial Statements. Seller has delivered to Buyer (a) the audited
          --------------------
balance sheets and statements of operations, changes in shareholders' equity and
cash flows for the years ended December 31, 1997 and December 31, 1998 and the
reviewed report for the six months ended June 30, 1999, and (b) the September 30
Balance Sheet and the unaudited statement of operations and statement of cash
flows as of and for the nine months ended September 30, 1999. Such financial
statements (collectively, the "Financial Statements") have been prepared in
                               --------------------
accordance with United States generally accepted accounting principles ("GAAP")
                                                                         ----
applied on a consistent basis throughout the periods covered thereby, fairly
present the financial condition, Liabilities, results of operations and cash
flows of Seller as of the respective dates thereof and for the periods referred
to therein and are consistent with the books and records of Seller, provided,
however, that the Financial Statements referred to in clause (b) above are
subject to normal and recurring year-end adjustments (which will not in the
aggregate be material) and do not include footnotes.

     4.13 Books and Records. Seller has made and kept in accordance with good
          -----------------
business and bookkeeping practices (and given Buyer access to) Books and Records
and accounts, which, in reasonable detail, accurately and fairly reflect in all
material respects the assets, liabilities, business, financial condition and
results of operations of Seller. The minute books and similar records of Seller
accurately and adequately reflect all material actions taken by the
shareholders, board of directors and committees of the board of directors of
Seller at any meetings thereof, and of all written consents executed in lieu of
a meeting, through the date of this Agreement.

     4.14 Litigation. Except as set forth on Schedule 4.14, there is no Action
          ----------                         -------------
pending, threatened or anticipated (a) against, related to or affecting (i)
Seller, its business or the Assets (including with respect to Environmental
Laws), (ii) any officers or directors of Seller as such, or (iii) any
shareholder of Seller in such shareholder's capacity as a shareholder of Seller;
(b) seeking to delay, limit or enjoin the transactions contemplated by this
Agreement; (c) that involve the risk of criminal liability; or (d) in which
Seller is a plaintiff, including any derivative suits brought by or on behalf of
Seller. Schedule 4.14 identifies any agreement or other document or instrument
        -------------
settling any claim, complaint, action, suit or other proceeding, or a threat of
any such claim, complaint, action, suit or other proceeding, against Seller.
Seller is not in

                                       18
<PAGE>

default with respect to or subject to any Court Order, and there are no
unsatisfied judgments against Seller, its business or the Assets. Other than as
set forth in Schedule 4.14, none of the Actions set forth on Schedule 4.14, if
             -------------                                   -------------
determined adversely to Seller, would reasonably be expected to have a Material
Adverse Effect on Seller.

     4.15 Employees; Labor Matters.
          ------------------------

               (a)  Seller has provided to Buyer a written list of all employees
of Seller (including full-time, part-time, and employees on any form of
disability leave or other leave of absence with statutory or contractual rights
to reemployment), along with the position, the current rate of compensation of
each such person on an annual basis and share option positions, if any. Except
as set forth in Schedule 4.15(a) or as provided by law, the employment of all
                ----------------
persons presently employed or retained by Seller is terminable at will. Each
such employee has entered into a confidentiality/non-competition/assignment of
inventions agreement with Seller, which has previously been delivered (or copies
thereof having been made available) to Buyer. Except for these
confidentiality/non-competition/assignment of inventions agreements and the
agreements described in Schedule 4.15(a), there are no written or oral contracts
                        ----------------
of employment between Seller and any of its employees. Neither the execution nor
the delivery of this Agreement, nor the carrying on of Seller's business by its
employees and consultants, will conflict with or result in a breach of the
terms, conditions or provisions of, or constitute a default under, any contract,
covenant or instrument under which any of such persons or entities are now
obligated. It is currently not necessary nor will it be necessary for Seller to
utilize in Seller's business any inventions of any of such persons or entities
(or people it currently intends to hire) made or owned prior to their employment
by or affiliation with Seller, nor is it or will it be necessary to utilize any
other assets or rights of any such persons or entities (or people it currently
intends to hire) made or owned prior to their employment with or engagement by
Seller, in violation of any registered patents, trade names, trademarks or
copyrights or any other limitations or restrictions to which any such persons or
entity is a party or to which any of such assets or rights may be subject. To
Seller's knowledge, none of Seller's employees, consultants, officers, directors
or shareholders that has had knowledge or access to information relating to the
Assets has taken, removed or made use of any proprietary documentation, manuals,
products, materials, or any other tangible item from his or her previous
employer relating to the Assets by such previous employer which has resulted in
Seller's access to or use of such proprietary items included in the Assets, and
Seller will not gain access to or make use of any such proprietary items in
Seller's business, except to the extent that any such activities would not have
a Material Adverse Effect on the Assets or Seller's business. No key employee or
group of employees has informed Seller of any plans to terminate employment with
Seller within the next six (6) months, except for those employees identified on
Schedule 4.15(a). Seller is in compliance in all material respects with all
- ----------------
currently applicable laws and regulations respecting wages, hours, occupational
safety, health and employment practices, and discrimination in employment terms
and conditions. There are no pending claims against Seller under any workers
compensation plan or policy. There are no proceedings pending or, to the
knowledge of Seller, threatened, between Seller and its employees, which
proceedings have or would reasonably be expected to have a Material Adverse
Effect on Seller. In addition, Seller has provided all employees with all
relocation benefits, stock options, bonuses and incentives, and all other
compensation and benefits that such employee has earned or otherwise become
entitled to receive up through the

                                       19
<PAGE>

date of this Agreement or that such employee was otherwise promised in his or
her employment agreements with Seller.

               (b)  Seller is not a party to or bound by any labor agreement or
collective bargaining agreement with respect to its employees with any labor
organization, union, group or association and there are no employee unions (nor
any other similar labor or employee organizations) under local statutes, custom
or practice. Seller has not experienced any attempt by organized labor or its
representatives to make Seller conform to demands of organized labor relating to
its employees or to enter into a binding agreement with organized labor that
would cover the employees of Seller. There is no labor strike or labor
disturbance pending or, to the best of Seller's knowledge, threatened against
Seller nor is any grievance or claim of unfair labor practices currently being
asserted, and Seller has not experienced a work stoppage or other labor
difficulty, and is not and has not engaged in any unfair labor practice. Without
limiting the foregoing, Seller is in compliance with the Immigration Reform and
Control Act of 1986 and maintains a current Form I-9, as required by such Act,
in the personnel file of each employee hired after November 9, 1986.
Schedule 4.15(b) sets forth the names and current annual salary rates (or
- ----------------
current hourly wages) of all present employees of Seller whose annual
compensation exceeds $20,000.

     4.16 Compliance with Law. Seller and the conduct and operations of its
          -------------------
business have not violated and are in compliance with all Regulations and Court
Orders which (a) affect or relate to this Agreement or the transactions
contemplated hereby or (b) is applicable to Seller or its business or the
Assets, except for any violation of or default which would not reasonably be
expected to have a Material Adverse Effect on Seller. Seller has not received
any notice to the effect that, or otherwise been advised that, it is not in
compliance with any such Regulations or Court Orders, and Seller is not aware of
any existing circumstances which are likely to result in a violation of any of
the foregoing which failure or violation would reasonably be expected to have a
Material Adverse Effect on Seller. There is no agreement, judgment, injunction,
order or decree binding upon Seller which has or would reasonably be expected to
have the effect of prohibiting or materially impairing any current or future
business practice of Seller as currently contemplated by Seller, any acquisition
of property of Seller or the conduct of Seller's business as currently conducted
or as proposed to be conducted.

     4.17 No Brokers. Neither Seller nor its officers, directors, employees,
          ----------
shareholders or Affiliates has employed or made any agreement with any broker,
finder or similar agent or any person or firm which will result in the
obligation of Buyer or any of its Affiliates to pay any finder's fee, brokerage
fees or commission or similar payment in connection with the transactions
contemplated by this Agreement, except as disclosed on Schedule 4.17.
                                                       -------------

     4.18 No Other Agreements to Sell the Assets. Neither Seller nor its
          --------------------------------------
officers, directors, shareholders or Affiliates have any commitment or legal
obligation, absolute or contingent, to any other person or firm other than Buyer
to sell, assign, transfer or effect a sale of any of the Assets (other than
inventory in the ordinary course of business), to sell or effect a sale of any
capital stock of Seller, to effect any merger, consolidation, liquidation,
dissolution or other reorganization of Seller, or to enter into any agreement or
cause the entering into of an agreement with respect to any of the foregoing.

                                       20
<PAGE>

     4.19 Intellectual Property.
          ---------------------

               (a)  Schedule 4.19(a) lists (i) all Intellectual Property owned
                    ----------------
by Seller or used in its business, and the jurisdictions in which each such
Intellectual Property right has been issued or registered or in which any
application for such issuance or registration has been filed; (ii) all written
licenses, sublicenses and other agreements to which Seller is a party and
pursuant to which any person is licensed under any Intellectual Property rights
of Seller, except such licenses, sublicenses or other agreements with end-users
that grant non-exclusive rights to use a product of Seller in accordance with
Seller's unmodified standard form of end-user license agreement; (iii) all
written licenses, sublicenses and other agreements as to which Seller is a party
and pursuant to which Seller is licensed under any third party Intellectual
Property, including software ("Third Party Intellectual Property Rights") which
                               ----------------------------------------
are necessary for the business of Seller or which are required to allow Seller
to sell or market any existing product or provide any existing service of
Seller, excluding packaged commercially available licensed software programs
sold to the public; and (iv) all written agreements or other arrangements under
which Seller has provided or agreed to provide source code of any product of
Seller to any third party. Seller has made available to Buyer correct and
complete copies of all such Intellectual Property and other documents set forth
on Schedule 4.19(a) (as amended to date). Seller is not a party to any oral
   ----------------
license, sublicense or agreement which, if reduced to written form, would be
required to be listed Schedule 4.19(a) pursuant to the terms of this
                      ----------------
Section 4.19(a). Seller owns, or has a license thereto from the owner to use,
all Intellectual Property necessary, to Seller's knowledge, to conduct its
business as currently conducted or presently proposed to be conducted.

               (b)  With respect to each item of Intellectual Property that
Seller owns: (i) subject to such rights as have been granted by Seller under
license agreements entered into by Seller (copies of which previously have been
delivered to Buyer), Seller possesses all right, title and interest in and to
such item (free and clear of any liens or encumbrances) and has sole and
exclusive rights (and is not contractually obligated to pay any compensation to
any third party in respect thereof) except as described in Section 4.19(b) and
                                                           ---------------
(ii) such item is not subject to any outstanding judgment, order, decree,
stipulation or injunction.

               (c)  With respect to each item of Third Party Intellectual
Property Rights: (i) the license, sublicense or other agreement covering such
item is legal, valid, binding, enforceable and in full force and effect with
respect to Seller, and to Seller's knowledge is legal, valid, binding,
enforceable and in full force and effect with respect to each other party
thereto, except as enforcement may be limited by bankruptcy, insolvency,
fraudulent conveyance, reorganization, moratorium and other similar laws
affecting the enforcement of creditors' rights generally, and except that the
availability of equitable remedies, including specific performance, is subject
to the discretion of the court before which any proceeding therefor may be
brought; (ii) Seller is not in material breach or default under, and to Seller's
knowledge, no other party is in material breach or default under, any such
license or other agreement and no event has occurred which with notice or lapse
of time would constitute a material breach or default or permit termination,
modification or acceleration thereunder; (iii) the underlying item of Third
Party Intellectual Property is not subject to any outstanding judgment, order,
decree, stipulation or injunction to which Seller is a party or has been
specifically named, nor to Seller's knowledge subject to any other outstanding
judgment, order, decree, stipulation, or injunction; and (iv) no

                                       21
<PAGE>

license or other fee is payable upon any transfer or assignment of such license,
sublicense or other agreement.

               (d)  Seller (i) has not been served in any suit, action or
proceeding which involves a claim of infringement or misappropriation of any
Intellectual Property right of any third party (ii) has not received any notice
alleging any such claim of infringement or misappropriation and (iii) is not
aware of any basis for any such claim. Seller has previously delivered to Buyer
correct and complete copies of all such suits, actions or proceedings or written
notices to the extent Seller is not prohibited from disclosing the same under
applicable court orders. The manufacturing, marketing, licensing or sale of the
products or service offerings of Seller do not currently infringe, and have not
within the past five years infringed, any Intellectual Property right of any
third party; and the Intellectual Property rights of Seller are not being
infringed by activities, products or services of any third party.

               (e)  The execution and delivery of this Agreement by Seller, and
the consummation of the transactions contemplated hereby, will neither cause
Seller to be in violation or default under any license, sublicense or agreement,
nor terminate nor modify nor entitle any other party to any such license,
sublicense or agreement to terminate or modify such license, sublicense or
agreement, nor limit in any way Seller's ability to conduct its business or use
or provide the use of the Intellectual Property or Third Party Intellectual
Property Rights.

               (f)  Seller has taken reasonable security measures to safeguard
and maintain the secrecy, confidentiality and value of, and its property rights
in, all Intellectual Property. All officers, employees and consultants of Seller
who have access to proprietary information or Intellectual Property have
executed and delivered to Seller an agreement regarding the protection of
proprietary information and the assignment to Seller of all Intellectual
Property arising from the services performed for Seller by such persons. No
current or prior officers, employees or consultants of Seller have made any
written claim to any ownership interest in any Intellectual Property as a result
of having been involved in the development of such property while employed by or
consulting to Seller, or otherwise. Except as set forth in Schedule 4.19(f), to
                                                           ----------------
Seller's knowledge all of the Intellectual Property has been developed by
employees of Seller within the scope of their employment.

               (g)  Seller has the right, title and interest in and to all
software development tools, used by it in the development of any of the computer
software included in the Intellectual Property, excluding packaged commercially
available licensed software programs, operating systems and development tools
sold or made available to the public.

               (h)  As of the date hereof, there are no defects in Seller's
commercially available software products, and there are no errors in any
documentation, specifications, manuals, user guides, promotional material,
technical documentation, drawings, flow charts, diagrams, source language
statements, and demo disks related to, associated with or used or produced in
the development of Seller's commercially available software products, which
defects or errors would reasonably be expected to have, individually or in the
aggregate, a Material Adverse Effect on the value of such software products or
make them unsuitable for their intended purpose. Seller's commercially available
products operate as represented in the specifications, manuals, user guides,
promotional materials and demo disks for such products,

                                       22
<PAGE>

except where the failure to so operate would not have a Material Adverse Effect
on the value of such products or make them unsuitable for their intended
purpose. For all products sold by Seller since its inception, the occurrence in
or use by the commercially available products of dates on or after January 1,
2000 (the "Millennial Dates") will not adversely affect the performance of the
           ----------------
software with respect to date dependent data, computations, output or other
functions (including, without limitation, calculating, computing and sequencing)
and the software will create, sort and generate output data related to or
including Millennial Dates without errors or omissions, provided, however, in
each case, each software or hardware product used in conjunction with the
computer software products are also able to create, generate, sort, output and
otherwise process Millennial Dates.


               (i)  No government funding or university or college facilities
were used in the development of Seller's commercially available products and the
software was not developed pursuant to any contract or other agreement with any
person or entity.

     4.20  Employee Benefit Plans.
           ----------------------

               (a)  Schedule 4.20(a) contains a complete and accurate list of
                    ----------------
all Employee Benefit Plans maintained, or contributed to, by Seller, or any
ERISA Affiliate. Complete and accurate copies of: (i) all Employee Benefit Plans
which have been reduced to writing; (ii) written summaries of all unwritten
Employee Benefit Plans; (iii) all related trust agreements, insurance contracts
and summary plan descriptions, and (iv) the most recent determination letter
issued by the Internal Revenue Service with respect to each Employee Benefit
Plan which is a pension plan (as defined in Section 3(2) of ERISA), have been
made available to Buyer. Each Employee Benefit Plan has been administered in
accordance with its terms and each of Seller and the ERISA Affiliates has met
its obligations with respect to such Employee Benefit Plan and has made all
required contributions thereto within the timeframes required by applicable law
and the terms of such Employee Benefit Plans. All required reports and
descriptions (including Form 5500 Annual Reports, summary annual reports and
summary plan descriptions) have been timely filed and distributed appropriately
with respect to each Employee Benefit Plan. The applicable requirements of COBRA
(or any applicable state law providing for similar continuation rights) have
been met with respect to each such Employee Benefit plan with is an employee
welfare benefit plan (as defined in Section 3(1) of ERISA). Seller and all
Employee Benefit Plans are in compliance in form and operation with the
currently applicable provisions of ERISA, the Code and the regulations
thereunder, except for any such failures that are not reasonably expected to
result in a Material Adverse Effect.

               (b)  For purposes of this Agreement:

                    (i)  "Employee Benefit Plan" means any "employee pension
                          ---------------------
benefit plan" (as defined in Section 3(2) of the Employee Retirement Income
Security Act of 1974, as amended ("ERISA")), any "employee welfare benefit plan"
(as defined in Section 3(1) of ERISA), and any other written or oral plan,
agreement or arrangement involving direct or indirect compensation, including,
without limitation, insurance coverage, severance benefits, disability benefits,
deferred compensation, bonuses, stock options, stock purchase, phantom stock,
stock appreciation or other forms of incentive compensation or post-retirement
compensation.

                                       23
<PAGE>

                    (ii)  "ERISA Affiliate" means any entity which is a member
                           ---------------
of: (A) a controlled group of corporations (as defined in Section 414(b) of the
Code); (B) a group of trades or businesses under common control (as defined in
Section 414(c) of the Code); or (C) an affiliated service group (as defined
under Section 414(m) of the Code or the regulations under Section 414(o) of the
Code), any of which includes Seller.

               (c)  There are no investigations by any Governmental Entity,
termination proceedings or other claims (except claims for benefits payable in
the normal operation of the Employee Benefit Plans and proceedings with respect
to qualified domestic relations orders), suits or proceedings against or
involving any Employee Benefit Plan or asserting any rights or claims to
benefits under any Employee Benefit Plan that could give rise to any material
liability to Seller.

               (d)  All the Employee Benefit Plans that are intended to be
qualified under Section 401(a) of the Code have received determination letters
from the Internal Revenue Service to the effect that such Employee Benefit Plans
are qualified as of the date hereof and the plans and the trusts related thereto
are exempt from federal income taxes under Sections 401(a) and 501(a),
respectively, of the Code. No such determination letter has been revoked and
revocation has not been threatened, and no fact exists which could adversely
affect the qualified status of any such plan.

               (e)  Neither Seller nor any ERISA Affiliate has ever maintained
or been obligated to contribute to an Employee Benefit Plan subject to Section
412 of the Code or Title IV of ERISA. Neither Seller nor any plan fiduciary of
any Employee Benefit Plan has engaged in any transaction in violation of
Sections 404 or 406 of ERISA and with respect to each Employee Benefit Plan
there has been no "prohibited transaction" as defined in Section 4975(c)(1) of
the Code. Seller has never been assessed any civil penalty under Section 502(l)
of ERISA.

               (f)  No Employee Benefit Plan is funded by, associated with, or
related to a "voluntary employees' beneficiary association" within the meaning
of Section 501(c)(9) of the Code.

               (g)  Schedule 4.20(g) discloses each: (i) agreement with any
                    ----------------
director, executive officer or other key employee of Seller (A) the benefits of
which are contingent, or the terms of which are altered, upon the occurrence of
a transaction involving Seller of the nature of any of the transactions
contemplated by this Agreement; (B) providing any term of employment or
compensation guarantee; or (C) providing severance benefits or other benefits
after the termination of employment of such director, executive officer or key
employee; (ii) agreement, plan or arrangement under which any person may receive
payments from Seller that may be subject to the tax imposed by Section 4999 of
the Code or included in the determination of such person's "parachute payment"
under Section 280G of the Code; and (iii) agreement or plan binding Seller,
including, without limitation, any stock option plan, stock appreciation right
plan, restricted stock plan, stock purchase plan, severance benefit plan, or any
Employee Benefit Plan, any of the benefits of which will be increased, or the
vesting of the benefits of which will be accelerated, by the occurrence of any
of the transactions contemplated by this Agreement or the

                                       24
<PAGE>

value of any of the benefits of which will be calculated on the basis of any of
the transactions contemplated by this Agreement.

     4.21  Transactions with Certain Persons. Except as reflected in Schedule
           ---------------------------------                         --------
4.21, no Affiliate of Seller is, or within the past five (5) years has been, a
- ----
party to any transaction with Seller relating to Seller's business, including,
without limitation, any contract, agreement or other arrangement (a) providing
for the furnishing of services by, (b) providing for the rental of real or
personal property from, or (c) otherwise requiring payments to (other than for
services as officers, directors or employees of Seller) any such person or
corporation, partnership, trust or other entity in which any such person has an
interest as a shareholder, officer, director, trustee or partner. No Affiliate
of Seller owns any property or right, tangible or intangible, which is used in
Seller's business, has any claim or cause of action against Seller; or owes any
money to Seller.

     4.22  Tax Matters.
           -----------

                    (a)  Seller has timely filed with the appropriate taxing
authorities all Tax Returns (including, without limitation, information returns
and other material information) required to be filed through the date hereof and
will timely file any such Tax Returns required to be filed on or prior to the
Closing Date. The Tax Returns and other information filed were complete and
accurate in all respects. Except as specified in Schedule 4.22(a), neither
                                                 ---------------
Seller, nor any group of which Seller now or was a member, has requested any
extension of time within which to file Tax Returns (including, without
limitation, information returns) in respect of any Taxes. Seller has delivered
to Buyer complete and accurate copies of Seller's federal, state and local Tax
Returns filed, examination reports and statements of deficiencies assessed
against or agreed to by Seller since December 31, 1995 (or since inception, if
later).

                    (b)  All Taxes in respect of periods beginning before the
Closing Date have been timely paid prior to the Closing, or will be timely paid
by Seller, or an adequate reserve has been established therefor set forth on the
September 30 Balance Sheet and Seller does not have any Liability for Taxes in
excess of the amounts so paid or reserves so established. All Taxes attributable
to the period January 1, 1999 through the Closing Date are attributable to the
conduct by Seller of its operations in the ordinary course of business. Seller
has no actual or, to its knowledge, potential liability for any Tax obligation
of any taxpayer other than Seller.

                    (c)  Except as set forth in Schedule 4.22(c), the federal
                                                ---------------
income Tax Returns of Seller have been filed with the Internal Revenue Service
for all periods to and including those set forth in the Disclosure Schedule, and
except to the extent shown therein, no material deficiencies for Taxes, have
been claimed, proposed or assessed by any taxing or other Governmental Entity
against Seller. Except as set forth in Schedule 4.22(c), there are no pending,
                                       ---------------
or, to the best of Seller's knowledge, threatened or contemplated, examinations
or audits of any Tax Returns of Seller, and there are no matters under
discussion with any Governmental Entity with respect to Taxes that in the
reasonable judgment of Seller, or its counsel, is likely to result in a material
additional Liability for Taxes. Seller has not waived any statute of limitations
with respect to Taxes or agreed to an extension of time with respect to a tax
assessment or deficiency. There are no liens for Taxes (other than for current
Taxes not yet due and payable) on the Assets.

                                       25
<PAGE>

                    (d)  None of the Assets (i) is property that is required to
be treated as being owned by any other person pursuant to the so-called safe
harbor lease provisions of former Section 168(f)(8) of the Code, (ii) directly
or indirectly secures any debt the interest on which is tax-exempt under Section
103(a) of the Code, or (iii) is "tax-exempt use property" within the meaning of
Section 168(h) of the Code.

                    (e)  Seller (i) is not a person other than a United States
person within the meaning of the Code, (ii) is not and has never been a member
of an "affiliated group" of corporations (within the meaning of Section 1504 of
the Code), and (iii) is not a party to any Tax allocation or sharing agreements.

                    (f)  All Taxes that Seller is or was required by law to
withhold or collect have been duly withheld or collected and, to the extent
required, have been paid to the proper Governmental Entity, except such as are
being contested in good faith by appropriate proceedings (to the extent any such
proceedings are required) and with respect to which Seller is maintaining
reserves adequate for their payment. The transaction contemplated herein is not
subject to the tax withholding provisions of Section 3406 of the Code or of
Subchapter A of Chapter 3 of the Code.

                    (g) No agreement or arrangement regarding compensation of
any employee providing services to Seller's business provides for any payments
which could result in a nondeductible expense to the Buyer pursuant to Section
280G of the Code or an excise tax to the recipient of such payment pursuant to
Section 4999 of the Code.

     4.23  Insurance. Schedule 4.23 lists each insurance policy (including fire,
           ---------  -------------
theft, casualty, general liability, workers compensation, business interruption,
environmental, product liability and automobile insurance policies and bond and
surety arrangements) to which Seller is a party, a named insured, or otherwise
the beneficiary of coverage at any time within the past year. Schedule 4.23
                                                              -------------
lists each person or entity required to be listed as an additional insured under
each such policy. Each such policy is in full force and effect and by its terms
and with the payment of the requisite premiums thereon will continue to be in
full force and effect following the Closing. Seller is not in breach or default
(including with respect to the payment of premiums or the giving of notices)
under such policy, and no event has occurred which, with notice or the lapse of
time, would constitute such a breach or default or permit termination,
modification or acceleration, under such policy; and Seller has not received any
notice from the insurer disclaiming coverage or reserving rights with respect to
a particular claim or such policy in general. Seller has not incurred any
material loss, damage, expense or liability covered by any such insurance policy
for which it has not properly asserted a claim under such policy. Seller is
covered by insurance in scope and amount customary and reasonable for the
businesses in which it is engaged.

     4.24  Accounts Receivable. The accounts receivable set forth on the
           -------------------
September 30 Balance Sheet, and all accounts receivable arising since September
30, 1999, represent bona fide claims of Seller against debtors for sales,
services performed or other charges arising on or before the date hereof, and
all the goods delivered and services performed which gave rise to said accounts
were delivered or performed in accordance with the applicable orders, Contracts
or customer requirements. Said accounts receivable are subject to no defenses,
counterclaims or

                                       26
<PAGE>

rights of setoff and are fully collectible in the ordinary course of business
without cost in collection efforts therefor, except to the extent of the
appropriate reserves for bad debts on accounts receivable as set forth on the
September 30 Balance Sheet and, in the case of accounts receivable arising since
September 30, 1999, to the extent of a reasonable reserve rate for bad debts on
accounts receivable which is not greater than the rate reflected by the reserve
for bad debts on the September 30 Balance Sheet.

     4.25  Inventory. The Inventory as set forth on the September 30 Balance
           ---------
Sheet or arising since September 30, 1999 was acquired and has been maintained
in accordance with the regular business practices of Seller, consists of new and
unused items of a quality and quantity usable or saleable in the ordinary course
of business, and is valued at reasonable amounts based on the normal valuation
policy of Seller at prices equal to the lower of cost or market value on a
first-in-first-out basis. None of such Inventory is obsolete, unusable, slow-
moving, damaged or unsaleable in the ordinary course of business, except for
such items of Inventory which have been written down to realizable market value,
or for which adequate reserves have been provided, in the September 30 Balance
Sheet.

     4.26  Payments. Neither Seller nor, to Seller's knowledge, any director,
           --------
officer, agent, or employee of Seller or any other person or entity associated
with or acting for or on behalf of Seller, has directly or indirectly (a) made
any contribution, gift, bribe, rebate, payoff, influence payment, kickback, or
other payment to any person or entity, private or public, regardless of form,
whether in money, property, or services: (i) to obtain favorable treatment in
securing business; (ii) to pay for favorable treatment for business secured;
(iii) to obtain special concessions or for special concessions already obtained,
for or in respect of Seller or any of its Affiliates; or (iv) in violation of
any Regulation, or (b) established or maintained any fund or asset that has not
been recorded in the Books and Records.

     4.27  Customers and Suppliers. Schedule 4.27 sets forth all customers of
           -----------------------  -------------
Seller which individually accounted for more than ten percent (10%) of Seller's
gross revenues during the twelve (12) month period preceding the date hereof. As
of the date hereof, except as set forth on Schedule 4.27, no customer or
                                           -------------
supplier of Seller has canceled or otherwise terminated, or indicated either
orally or in writing to Seller that it will cancel or otherwise terminate, its
relationship with Seller or decrease materially its services or supplies to
Seller or its purchase or usage of Seller's services or products, as the case
may be.

     4.28  Environmental Matters.
           ---------------------

                    (a)  Seller is, and at all times has been, in compliance
with all applicable Environmental Laws. There is no pending or, to Seller's
knowledge, threatened civil or criminal litigation, notice of violation, formal
administrative proceeding, or, to the knowledge of Seller, any investigation,
inquiry or information request by any Governmental Entity, relating to any
Environmental Law involving Seller. For purposes of this Agreement,
"Environmental Law" means any federal, state or local law, statute, rule or
 -----------------
regulation relating to the environment or occupational health and safety,
including, without limitation, any statute, regulation or order pertaining to:
(i) treatment, storage, disposal, generation and transportation of industrial,
toxic or hazardous substances or toxic or hazardous waste; (ii) air, water and
noise pollution; (iii) groundwater and soil contamination; (iv) the release or
threatened release into the

                                       27
<PAGE>

environment of industrial, toxic or hazardous substances, or solid or hazardous
waste, including, without limitation, emissions, discharges, injections, spills,
escapes or dumping of pollutants or contaminants; (v) the protection of wild
life, marine sanctuaries and wetlands, including, without limitation, all
endangered and threatened species; (vi) storage tanks, vessels and containers;
(vii) underground and other storage tanks or vessels, abandoned, disposed or
discarded barrels, containers and other closed receptacles; (viii) health and
safety of employees and other persons; and (ix) manufacture, processing, use,
distribution, treatment, storage, disposal, transportation or handling of
pollutants, contaminants, toxic or hazardous substances or oil or petroleum
products or toxic or hazardous waste. As used above, the terms "release" and
"environment" shall have the meaning set forth in the federal Comprehensive
Environmental Response, Compensation and Liability Act of 1980, as amended
("CERCLA").
  ------

               (b)  Seller has not released any Hazardous Materials into the
environment at any parcel of real property or any facility during the time when
such real property or facility was leased, operated or controlled by Seller.
Seller is not aware of any other releases of Hazardous Materials that could
reasonably be expected to have an impact on the real property or facilities
owned, leased, operated or controlled by Seller. For purposes of this Agreement,
"Hazardous Materials" means any pollutants or contaminants, hazardous substances
(as such term is defined under CERCLA), hazardous wastes (as such terms are
defined under the federal Resources Conservation and Recovery Act), toxic
materials, oil or petroleum and petroleum products, or any other material
subject to regulation under any Environmental Law.

               (c)  Seller is not aware of any environmental reports,
investigations and audits relating to premises currently or previously leased or
operated by Seller (whether conducted by or on behalf of Seller or a third
party, and whether done at the initiative of Seller or directed by a
Governmental Entity or other third party) being issued or conducted during the
past five (5) years.

     4.29  Material Misstatements Or Omissions. No representations or warranties
           -----------------------------------
of Seller in this Agreement, nor any document, exhibit, statement, certificate
or schedule heretofore or hereinafter furnished to Buyer pursuant hereto, or in
connection with the transactions contemplated hereby, including, without
limitation, the Disclosure Schedule, contains or will contain any untrue
statement of a material fact, or omits or will omit to state any material fact
necessary to make the statements or facts contained therein not misleading.
Seller has disclosed all events, conditions and facts materially affecting its
business, prospects and financial condition.

     4.30  Warranties and Indemnities. Schedule 4.30 sets forth a summary of all
           --------------------------
warranties and indemnities, express or implied, relating to products sold or
services rendered by Seller, and no warranty or indemnity has been given by
Seller which is not listed on Schedule 4.30 or which differs therefrom in any
respect.  Seller is in compliance with all warranties described in Schedule
4.30. Schedule 4.30 also indicates all warranty and indemnity claims currently
pending against Seller.

     4.31  Fair Consideration; No Fraudulent Conveyance. The sale of the
           --------------------------------------------
Purchased Assets pursuant to this Agreement is made in exchange for fair and
equivalent consideration. Seller will not be rendered insolvent by the sale,
transfer and assignment of the Purchased Assets pursuant

                                       28
<PAGE>

to the terms of this Agreement. Seller is not entering into this Agreement or
any of the other agreements referenced in this Agreement with the intent to
defraud, delay or hinder its creditors and the consummation of the transactions
contemplated by this Agreement, and the other agreements referenced in this
Agreement, will not have any such effect. The transactions contemplated in this
Agreement or any agreements referenced in this Agreement will not constitute a
fraudulent conveyance, or otherwise give rise to any right of any creditor of
Seller to any of the Purchased Assets after the Closing.

     4.32  FDA Regulation.  None of Seller's existing products or products in
           --------------
development are subject to regulation by the U.S. Food and Drug Administration.

     4.33  Disclaimer. Except as expressly set forth in this Agreement, or in
           ----------
any document, certificate, instrument, Disclosure Schedule or other agreement
furnished or to be furnished to Buyer pursuant to this Agreement, SELLER MAKES
NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO THE ASSETS OR
INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE.

                                  ARTICLE V.
                    REPRESENTATIONS AND WARRANTIES OF BUYER
                    ---------------------------------------

     Buyer hereby represents and warrants, which representations and warranties
are, as of the date hereof, and will be, as of the Closing Date, true and
correct, to Seller as follows:

     5.1  Organization and Qualification. Buyer is a corporation duly organized,
          ------------------------------
validly existing and in good standing under the laws of the State of Delaware
and Buyer has all the requisite corporate power and authority, and is in
possession of all franchises, grants, authorizations, licenses, permits,
easements, consents, certificates, approvals and orders ("Buyer Approvals")
necessary to own, lease and operate its properties and to carry on its business
as it is now being conducted, except where the failure to be so qualified,
existing and in good standing or to have such power, authority and Buyer
Approvals would not, individually or in the aggregate, have a Material Adverse
Effect. Buyer is duly qualified or licensed as a foreign corporation to do
business, and is in good standing, in each jurisdiction where the character of
the properties owned, leased or operated by it or the nature of its activities
makes such qualification or licensing necessary, except for such failures to be
so duly qualified or licensed and in good standing that would not, either
individually or in the aggregate, have a Material Adverse Effect.

     5.2  Capitalization. As of the date hereof, the authorized capital stock of
          --------------
Buyer consists of (i) 25,000,000 shares of Buyer Common Stock of which
10,464,788 shares of Buyer Common Stock were issued and outstanding, and
2,150,000 shares of Buyer Common Stock were reserved for future issuance
pursuant to outstanding employee stock options or other outstanding stock
options and (ii) 3,000,000 shares of undesignated preferred stock, par value
$.001 per share, of which none are issued or outstanding. Buyer has warrants to
purchase an aggregate of 383,971 shares of Buyer Common Stock outstanding as of
the date of this Agreement. All of the outstanding shares of Buyer Common Stock
are, and all shares to be

                                       29
<PAGE>

issued as part of the Purchase Price will be, when issued in accordance with the
terms hereof, duly authorized, validly issued, fully paid and nonassessable and
not subject to preemptive rights.

     5.3  Authorization of Agreement. Buyer has all requisite corporate power
          --------------------------
and authority to execute and deliver the Transaction Documents and each
instrument required hereby to be executed and delivered by it at the Closing, to
perform its obligations hereunder and thereunder and to consummate the
transactions contemplated hereby and thereby. The execution and delivery by
Buyer of the Transaction Documents and each instrument required hereby to be
executed and delivered by it at the Closing, the performance of obligations
hereunder and thereunder and the consummation of the transactions contemplated
hereby and thereby have been duly and validly authorized by the Board of
Directors of Buyer and no other corporate proceedings on the part of Buyer are
necessary to authorize the Transaction Documents or to consummate the
transactions contemplated hereby. The Transaction Documents have been duly
executed and delivered by Buyer and, assuming due authorization, execution and
delivery hereof by the Company, constitute legal, valid and binding obligations
of Buyer, enforceable against Buyer in accordance with their terms, in each case
except to the extent that the enforcement hereof may be limited by (A)
bankruptcy, insolvency, reorganization, moratorium or other similar laws now or
hereafter in effect relating to creditors' rights generally and (B) general
principles of equity (regardless of whether enforceability is considered in a
proceeding in equity or at law). No other corporate proceedings are required by
Buyer other than the approval of the Board of Directors of Buyer.

     5.4  Approvals. The execution and delivery of the Transaction Documents or
          ---------
any instrument required by the Transaction Documents to be executed and
delivered by Buyer at the Closing do not, and the performance by Buyer of its
respective obligations under the Transaction Documents or any instrument
required by the Transaction Documents to be executed and delivered by Buyer at
the Closing shall not require Buyer to obtain any consent, approval,
authorization, license, waiver, qualification, order or permit of, observe any
waiting period imposed by, or require Buyer to make any filing with or
notification to, any Governmental Entity, except for (A) compliance with
applicable requirements, if any, of the Securities Act, the Securities Exchange
Act of 1934, as amended (the "Exchange Act") or blue sky laws, (B) the filing of
appropriate documents as required by the NASDAQ or (C) where the failure to
obtain such consent, approvals, authorizations, licenses, waivers,
qualifications, orders or permits, or to make such filings or notifications,
would not have, in the aggregate, a Material Adverse Effect.

     5.5  No Violation. Assuming effectuation of all filings, notifications, and
          ------------
registrations with, termination or expiration of any applicable waiting periods
imposed by and receipt of all Permits or orders of Governmental Entities set
forth in Section 5.4(A) or (B) above, the execution and delivery by Buyer of the
Transaction Documents or any instrument required by the Transaction Documents to
be executed and delivered by Buyer at the Closing do not, and the performance of
the Transaction Documents by Buyer of its respective obligations under the
Transaction Documents or any instrument required by the Transaction Documents to
be executed and delivered by Buyer at the Closing will not, (i) conflict with or
violate the Certificate of Incorporation or By-laws of Buyer, (ii) conflict with
or violate any law, order or regulation in each case applicable to Buyer or by
which its properties are bound or affected, or (iii) result in any breach or
violation of or constitute a default (or an event that with notice or lapse of
time or

                                       30
<PAGE>

both would become a default) under any note, bond, mortgage, indenture,
contract, agreement, lease, license, permit, franchise or other instrument or
obligation to which Buyer is a party or by which Buyer or any of its properties
are bound or affected, except in the case of clause (ii) or (iii) above, for any
such conflicts, breaches, violations, defaults or other occurrences that would
not (a) individually, or in the aggregate, have a Material Adverse Effect or (b)
prevent or materially impair or delay the consummation of the Merger.

     5.6  Reports.
          -------

                    (a)  As of the date of this Agreement, Buyer has timely
filed all reports and schedules required to be filed with the SEC (collectively,
the "Buyer SEC Reports") pursuant to the Exchange Act and the regulations
promulgated thereunder. The Buyer SEC Reports were prepared in accordance, and
complied as of their respective dates in all material respects, with the
requirements of the Exchange Act and the regulations promulgated thereunder and
did not as of their respective dates (or if amended by a filing prior to the
date hereof, then as of the date of such amendment) contain any untrue statement
of a material fact or omit to state a material fact required to be stated
therein or necessary in order to make the statements therein, in the light of
the circumstances under which they were made, not misleading, except to the
extent superseded by a Buyer SEC Report filed subsequently and prior to the date
hereof.

                    (b) The consolidated financial statements (including, in
each case, any related notes thereto) contained in Buyer SEC Reports (i)
complied in all material respects with applicable accounting requirements and
the published regulations with respect thereto, (ii) were prepared in accordance
with GAAP (except in the case of interim balance sheets, as permitted by
Regulation S-X promulgated by the SEC) applied on a consistent basis throughout
the periods involved (except as may be expressly described in the notes thereto)
and (iii) fairly presents the consolidated financial position of the Buyer at
the respective dates thereof and the consolidated results of its operations and
cash flows for the periods indicated.

     5.7  Absence of Certain Changes or Events. Since December 31, 1998, Buyer
          ------------------------------------
has conducted its business only in the ordinary and usual course and in a manner
consistent with past practice and, since such date, there has not occurred any
event, development or change which, individually or in the aggregate, has
resulted in or is reasonably likely to result in a Material Adverse Effect.

     5.8  Absence of Litigation. Except as set forth in the Buyer SEC Reports,
          ---------------------
there is no litigation pending, or to Buyer's knowledge, threatened against the
Buyer, that have or would have a Material Adverse Effect on Buyer. Buyer is not
subject to any outstanding claim or order other than as set forth in the Buyer
SEC Reports, which, individually or in the aggregate, has, or in the future
might have, a Material Adverse Effect on the business or results of operations
of Buyer.

                                  ARTICLE VI.

                         COVENANTS OF SELLER AND BUYER
                         -----------------------------

     Seller and Buyer each covenant with the other as follows:

                                       31
<PAGE>

     6.1  Further Assurances. Upon the terms and subject to the conditions
          ------------------
contained herein, the Parties agree, both before and after the Closing, (i) to
use all reasonable efforts to take, or cause to be taken, all actions and to do,
or cause to be done, all things necessary, proper or advisable to consummate and
make effective the transactions contemplated by this Agreement, (ii) at the
reasonable request of another Party, to execute and deliver any documents,
instruments or conveyances of any kind which may be necessary, proper or
advisable to carry out any of the transactions contemplated hereunder, and (iii)
to cooperate with each other in connection with the foregoing. Without limiting
the foregoing, the Parties agree to use their respective commercially reasonable
best efforts (A) to obtain all necessary waivers, consents and approvals from
other parties to the Contracts and Leases to be assumed by Buyer; provided,
                                                                  --------
however that Buyer shall not be required to make any payments, commence
- -------
litigation or agree to modifications of the terms thereof in order to obtain any
such waivers, consents or approvals, (B) to obtain all necessary Permits as are
required to be obtained under any Regulations, (C) to give all notices to, and
make all registrations and filings with third parties and Governmental Entities
as may be required with respect to Seller or Buyer in connection with the
transactions contemplated by this Agreement, and (D) to fulfill all conditions
to this Agreement.

     6.2  No Solicitation. From the date hereof through the Closing or the
          ---------------
earlier termination of this Agreement, Seller shall not, and shall cause its
shareholders and Representatives (including, without limitation, investment
bankers, attorneys and accountants) not to, directly or indirectly, (i) enter
into, solicit, initiate or continue any discussions or negotiations with, or
encourage the submission of, or respond to any inquiries or proposals by, any
person or entity (other than Buyer and its Representatives), concerning any
sale of all or any portion of the Assets or Seller's business, or of any shares
of capital stock of Seller, or any merger, consolidation, liquidation,
dissolution or similar transaction involving Seller (each such transaction being
referred to herein as a "Proposed Acquisition Transaction"), or (ii) participate
                         --------------------------------
in any negotiations with, or furnish any non-public information concerning
Seller or its business, properties or assets to, any person or entity (other
than Buyer and its Representatives), except to the extent necessary to comply
with the Seller's fiduciary duties to its shareholders under the Texas Business
Corporation Act. Seller hereby represents that it is not now engaged in
discussions or negotiations with any party other than Buyer with respect to any
Proposed Acquisition Transaction. Seller shall notify Buyer promptly (orally and
in writing) if any offer, or any inquiry or contact with any person with respect
thereto, is made and shall provide Buyer with a copy of such offer (if in
writing) and shall disclose to Buyer all details of any inquiries, discussions
or negotiations of the nature described in this Section 6.2. Seller agrees not
to release any third party from, or waive any provision of, any confidentiality
or standstill agreement to which Seller is a party.

     6.3  Notification of Certain Matters.
          -------------------------------

               (a)  From the date hereof through the Closing, Seller shall give
prompt notice to Buyer of the occurrence, or failure to occur, of any event
which would (a) cause any representation or warranty of Seller contained in this
Agreement (including the Disclosure Schedule) that is qualified as to
materiality or Material Adverse Effect to be untrue or inaccurate or any
representation or warranty that is not so qualified to be untrue or inaccurate
in any material respect, or (b) constitute or result in a default or breach by
Seller or any of its Affiliates of any covenant, condition or agreement to be
complied with or satisfied by it under this

                                       32
<PAGE>

Agreement; provided, however, that such disclosure shall not be deemed to cure
           --------  -------
any breach of a representation, warranty, covenant or agreement or to satisfy
any condition. Seller shall promptly notify Buyer of any default, the threat or
commencement of any Action, or any development that occurs before the Closing
that could reasonably be likely to have a Material Adverse Effect on Seller.

                    (b)  From the date hereof through the Closing, Buyer shall
give prompt notice to Seller of the occurrence, or failure to occur, of any
event which would (a) cause any representation or warranty of Buyer contained in
this Agreement that is qualified as to materiality or Material Adverse Effect to
be untrue or inaccurate or any representation or warranty that is not so
qualified to be untrue or inaccurate in any material respect, or (b) constitute
or result in a default or breach by Buyer or any of its Affiliates of any
covenant, condition or agreement to be complied with or satisfied by it under
this Agreement; provided, however, that such disclosure shall not be deemed to
                --------  -------
cure any breach of a representation, warranty, covenant or agreement or to
satisfy any condition. Buyer shall promptly notify Seller of any default or the
threat or commencement of any Action.

     6.4  Access; Investigation by Buyer.  Seller shall, and shall cause its
          ------------------------------
officers, directors, employees and agents to, afford Buyer and its Affiliates
and Representatives, upon reasonable notice, full and complete access at all
reasonable times to the Assets for the purpose of inspecting the same, and to
the officers, employees, agents, attorneys, accountants, properties, Books and
Records, Contracts and Leases of Seller, and shall furnish Buyer all financial,
accounting, personnel, operating and other data and information (subject to
applicable confidentiality obligations of Seller) as Buyer or its Affiliates or
Representatives, may reasonably request, including, promptly upon request,
furnishing an unaudited balance sheet and the related statements of income,
retained earnings and cash flow to Buyer for each month from the date hereof
through the Closing Date which financial statements shall be true and correct
and in accordance with the Books and Records and shall accurately set forth the
assets, Liabilities and financial condition, results of operations and other
information purported to be set forth therein in accordance with GAAP
consistently applied.

     6.5  Conduct of Business.  Except as contemplated by this Agreement, from
          -------------------
the date hereof through the Closing, Seller shall operate its business in the
ordinary course of business in compliance with all applicable Regulations and,
to the extent consistent therewith, use all reasonable efforts to preserve
intact its current business organization, keep its physical assets in good
working condition, keep available the services of its current officers and
employees and preserve its relationships with customers, suppliers and others
having business dealings with it, and shall not take any action inconsistent
with this Agreement or with the consummation of the Closing. Without limiting
the generality of the foregoing, from the date hereof through the Closing,
Seller shall not, except as specifically contemplated by this Agreement or as
consented to by Buyer in writing:

                    (a)  change or amend its Charter or Bylaws in any manner
that would adversely affect Seller's ability to transfer the Assets to Buyer
hereunder;

                    (b)  enter into, extend, materially modify, terminate or
renew any Contract or Lease, except in the ordinary course of business, or take
any action that would

                                       33
<PAGE>

constitute a default under, or waive, release or assign any rights under, any
Contract or Lease, or willingly allow or permit any of Seller's insurance
policies to be suspended, impaired or canceled;

                    (c)  sell, assign, transfer, convey, lease, license,
mortgage, pledge or otherwise dispose of or grant or impose any Encumbrance on
any of the Assets, including, without limitation, the Intellectual Property, or
any interests therein, except in the ordinary course of business;

                    (d)  create, incur or assume any Liability not currently
outstanding (including obligations in respect of capital leases); assume,
guarantee, endorse or otherwise become liable or responsible (whether directly,
contingently or otherwise) for the obligations of any other person or entity; or
make any loans, advances or capital contributions to, or investments in, any
other person or entity, in each case, except in the ordinary course of business;

                    (e)  (i) take any action with respect to the grant of any
bonus, severance or termination pay (otherwise than pursuant to policies or
agreements of Seller in effect on the date hereof that are described on the
Disclosure Schedule) or with respect to any increase of benefits payable under
its severance or termination pay policies or agreements in effect on the date
hereof or increase in any manner the compensation or fringe benefits of any
employee or pay any benefit not required by any existing Employee Benefit Plan
or policy; (ii) adopt, enter into or amend any Employee Benefit Plan, agreement
(including, without limitation, any collective bargaining or employment
agreement), trust, fund or other arrangement for the benefit or welfare of any
employee, except for any such amendment as may be required to comply with
applicable Regulations; (iii) fail to maintain all Employee Plans in accordance
with applicable Regulations; or (iv) hire, terminate or discharge any employee
or engage or terminate any consultant, except for the hiring of persons for whom
offers of employment are outstanding on the date hereof as set forth on Schedule
                                                                        --------
6.5 or in the ordinary course of business;
- ---

                    (f)  fail to pay its accounts payable and any debts owed or
obligations due to it, or pay or discharge when due any Liabilities in the
ordinary course of business, or discharge or satisfy any Encumbrance or pay any
obligation or Liability other than in the ordinary course of business, or fail
to collect its accounts receivable in the ordinary course of business;

                    (g)  make or commit to make any capital expenditure in
excess of $10,000 per item;

                    (h)  merge or consolidate with, or purchase substantially
all of the assets of, or otherwise acquire any material assets or business of
any corporation, partnership, association or other business organization or
division thereof;

                    (i)  declare, set aside or pay any dividend or other
distribution (whether in cash, stock or property or any combination thereof) in
respect of its capital stock;

                                       34
<PAGE>

                    (j)  fail to maintain the Assets in substantially their
current state of repair, excepting normal wear and tear, or fail to replace
inoperable, worn-out or obsolete or destroyed Assets in the ordinary course of
business;

                    (k)  change in any material respect its accounting methods,
principles or practices, except insofar as may be required by a generally
applicable change in GAAP or as required by Buyer;

                    (l)  make or change any material election in respect of
Taxes, adopt or change any accounting method in respect of Taxes, file any
material Tax Return or any amendment to a material Tax Return (in which case,
the written consent of Buyer shall not be unreasonably withheld), enter into any
closing agreement, settle any claim or assessment in respect of Taxes (except
settlements effected solely through payment of immaterial sums of money), or
consent to any extension or waiver of the limitation period applicable to any
material claim or assessment in respect of Taxes;

                    (m)  fail to comply in any material respect with all Permits
and Regulations applicable to Seller or its business or to the Assets;

                    (n)  commence any litigation other than (i) for the routine
collection of bills, (ii) for software piracy, or (iii) in such cases where
Seller in good faith determines that failure to commence suit would result in
the material impairment of a valuable aspect of Seller's business, provided that
Seller consults with Buyer prior to the filing of such a suit;

                    (o)  take any action or fail to take any action permitted by
this Agreement with the knowledge that such action or failure to take action
would result in (i) any of the representations and warranties of Seller set
forth in this Agreement becoming untrue or (ii) any of the conditions set forth
in Article VIII not being satisfied;

                    (p)  enter into any agreement, or otherwise become
obligated, to do any action prohibited hereunder.


     6.6  Employee Matters.
          ----------------

                    (a)  Buyer shall extend offers of employment to each of
Seller's employees identified on Schedule 6.6 (such employees are hereinafter
                                 ------------
referred to as the "Rehired Employees"), which offers shall be on terms and
                    -----------------
conditions which Buyer shall determine in its sole discretion but shall be
substantially on the same terms of similarly situated employees of Buyer. Seller
agrees to terminate the employment of all Rehired Employees immediately prior to
the Closing and shall cooperate with and use reasonable efforts to assist Buyer
in its efforts to secure satisfactory employment arrangements with those
employees of Seller to whom Buyer makes offers of employment. Buyer shall credit
Rehired Employees with their service with Seller for all purposes under the
compensation and employee benefit plans of Buyer, except for the accrual of
benefits under a defined benefit plan.

                    (b)  Except as provided in Section 2.2, Seller shall be
solely responsible for all of the Employee Benefit Plans and all obligations and
liabilities thereunder, including, without limitation, any COBRA obligations (or
similar continuation coverage obligations under

                                       35
<PAGE>

any applicable state law), and Buyer shall not assume any of the Employee
Benefit Plans or such obligation or liability thereunder.

                    (c)  Any person who (i) is an employee of Seller on the
Closing Date and (ii) is a Rehired Employee shall be eligible to receive stay
and incentive bonuses of up to $500,000 within the one year following Closing
based on the achievement of agreed upon milestones.

                    (d)  Nothing contained in this Agreement shall confer upon
any Rehired Employee any right with respect to continuance of employment by
Buyer, nor shall anything herein interfere with the right of Buyer to terminate
the employment of any of the Rehired Employees at any time, with or without
cause, nor shall anything herein restrict Buyer in the exercise of its
independent business judgment in modifying any of the terms and conditions of
the employment of the Rehired Employees; provided however, that Buyer shall be
obligated to pay the Rehired Employee's applicable stay bonus if such person is
terminated without cause prior to the date such stay bonus would otherwise be
payable.

                    (e)  Stock Options. Buyer shall offer each Rehired Employee
                         -------------
a stock option (the "Buyer Stock Options") for Buyer Common Stock for the amount
of shares identified on Schedule 6.6.
                        ------------

                    (f)  Nasdaq Listing of Shares. Prior to the Escrow
                         ------------------------
Termination Date, Buyer shall cause the Escrow Shares to be listed on the Nasdaq
National Market.

     6.7  State Securities Laws. Buyer shall take such steps as may be necessary
          ---------------------
to comply with the securities and "blue sky" laws of all jurisdictions which are
applicable to the issuance of shares of Buyer Common Stock in connection with
the purchase and sale of the Assets pursuant to this Agreement. Seller shall use
its best efforts, to the extent commercially reasonable, to assist Buyer as may
be necessary to comply with such securities and "blue sky" laws.

     6.8  Third Party Consents. Seller and Buyer shall use commercially
          --------------------
reasonable efforts to obtain, within the applicable time periods required, all
required Consents, waivers, permits, consents and approvals and to effect all
registrations, filings and notices with or to third parties or Governmental
Entities which are necessary to consummate the transactions contemplated by this
Agreement so as to preserve all rights of, and benefits to, the Buyer in the
Assets.

                                 ARTICLE VII.

                      CONDITIONS TO SELLER'S OBLIGATIONS
                      ----------------------------------

     The obligations of Seller to consummate the transactions provided for
hereby are subject to the satisfaction, on or prior to the Closing Date, of each
of the following conditions, any of which may be waived by Seller:

     7.1  Representations, Warranties and Covenants. All representations and
warranties of Buyer contained in this Agreement that are qualified as to
materiality or Material Adverse Effect shall be true and correct as of the date
hereof and shall be true and correct as of the Closing Date as if made as of the
Closing Date (except for (i) representations and warranties which by their

                                       36
<PAGE>

terms are made as of a specific date, which shall be true and correct as of such
date and (ii) changes contemplated by this Agreement), and all representations
and warranties of Buyer that are not so qualified shall be true and correct in
all material respects as of the date hereof and as of the Closing Date as if
made as of the Closing Date (except for (i) representations and warranties which
by their terms are made as of a specific date, which shall be true and correct
as of such date and (ii) changes contemplated by this Agreement), and Buyer
shall have performed and satisfied in all material respects all of the
agreements and covenants required to be performed or satisfied by Buyer prior to
or on the Closing Date.

     7.2  No Actions or Court Orders. No temporary restraining order,
          --------------------------
preliminary or permanent injunction or other Court Order issued by any court of
competent jurisdiction or other legal or regulatory restraint or prohibition
preventing the consummation of, or questioning the validity or legality of, the
transactions contemplated by this Agreement or limiting or restricting Buyer's
conduct or operation of the business of Seller upon consummation of the
transactions contemplated hereby shall have been issued, nor shall any Action
brought by any Governmental Entity or any third party seeking any of the
foregoing be pending; nor shall there be any action taken, or any statute, rule,
regulation or order enacted, entered, enforced or deemed applicable to the
transactions contemplated by this Agreement which makes the consummation of such
transactions illegal.

     7.3  Consents; Regulatory Compliance and Approval. All consents, approvals
          --------------------------------------------
and waivers from, registrations and filings with and notices to Governmental
Entities and other third parties necessary to permit Seller to transfer the
Assets to Buyer as contemplated hereby shall have been obtained, unless the
failure to obtain any such consent, approval or waiver or make such registration
or filing or give such notice would not have a material adverse effect upon
Seller.

     7.4  Certificates. At the Closing, Buyer shall furnish to Seller a
          ------------
certificate of a duly authorized officer to the effect that each of the
conditions set forth in Sections 7.1, 7.2 (to the extent Buyer is a party or is
named therein) and 7.3 of this Agreement are satisfied in all respects and
certifying as to the resolutions adopted by the board of directors of Buyer
approving this Agreement, the Ancillary Agreements and the transactions
contemplated hereby or thereby.

     7.5  Transaction Documents. Buyer shall have executed the documents set
          ---------------------
forth in Section 3.2 of this Agreement to which it is a party and shall have
executed the Assumption Agreement and the Ancillary Agreements.

     7.6  State Securities Laws. Buyer shall have received all permits and other
          ---------------------
authorizations required under the applicable securities and "blue sky" laws of
all jurisdictions which are applicable to, and required prior to, the issuance
of shares of Buyer Common Stock pursuant to Section 2.4(b) of this Agreement.

     7.7 Opinion of Counsel. Buyer shall have delivered to Seller an opinion of
         ------------------
Venture Law Group, outside counsel to Buyer, dated as of the Closing Date in
form and substance customary for a transaction of this type and reasonably
satisfactory to Seller, including an opinion regarding valid issuance of the
Escrow Shares in the Transaction and the securities exemption of the issuance of
the Escrow Shares to Seller.

                                       37
<PAGE>

     7.8  No Material Adverse Change. Since September 30, 1999, there shall not
          --------------------------
have been any Material Adverse Change in the condition (financial or otherwise),
properties, business, results of operations, prospects, assets (including
intangible assets), Liabilities or operations or results of operations of Buyer.

     7.9  Stock Option Agreements. Buyer shall have delivered and executed Stock
          -----------------------
Option Agreements to the Rehired Employees pursuant to Section 6.6(e).

     7.10 Registration Rights Agreement.  Buyer and Seller shall have entered
          -----------------------------
into a Registration Rights Agreement substantially in the form of Exhibit I
hereto.


                                 ARTICLE VIII.

                       CONDITIONS TO BUYER'S OBLIGATIONS
                       ---------------------------------

     The obligations of Buyer to consummate the transactions provided for hereby
are subject to the satisfaction, on or prior to the Closing Date, of each of the
following conditions, any of which may be waived by Buyer:

     8.1  Representations, Warranties and Covenants. All representations and
          -----------------------------------------
warranties of Seller contained in this Agreement that are qualified as to
materiality or Material Adverse Effect shall be true and correct as of the date
hereof and shall be true and correct as of the Closing Date as if made as of the
Closing Date (except for (i) representations and warranties which by their terms
are made as of a specific date, which shall be true and correct as of such date
and (ii) changes contemplated by this Agreement), and all representations and
warranties of Seller that are not so qualified shall be true and correct in all
material respects as of the date hereof and as of the Closing Date as if made as
of the Closing Date (except for (i) representations and warranties which by
their terms are made as of a specific date, which shall be true and correct as
of such date and (ii) changes contemplated by this Agreement), and Seller shall
have performed and satisfied in all material respects all of the agreements and
covenants required to be performed or satisfied by Seller prior to or on the
Closing Date.

     8.2  Consents; Regulatory Compliance and Approval. All Permits, consents,
          --------------------------------------------
approvals and waivers from governmental authorities and other parties necessary
for the consummation of the transactions contemplated by this Agreement and for
the operation of Seller's business by Buyer following the Closing (including,
without limitation, all required third party consents to the assignment of the
Leases and Contracts to be assumed by Buyer) shall have been obtained by Seller.
Buyer shall be satisfied that all approvals required under any Regulations to
consummate the transactions contemplated by this Agreement shall have been
obtained and that the Parties shall have complied with all Regulations
applicable to the Acquisition.

     8.3  No Actions or Court Orders. No temporary restraining order,
          --------------------------
preliminary or permanent injunction or other Court Order issued by any court of
competent jurisdiction or other legal or regulatory restraint or prohibition
preventing the consummation of, or questioning the validity or legality of, the
transactions contemplated by this Agreement or limiting or restricting Buyer's
conduct or operation of the business of Seller upon consummation of the
transactions

                                       38
<PAGE>

contemplated hereby shall have been issued, nor shall any Action brought by any
Governmental Entity or any third party seeking any of the foregoing be pending;
nor shall there be any action taken, or any statute, rule, regulation or order
enacted, entered, enforced or deemed applicable to the transactions contemplated
by this Agreement which makes the consummation of such transactions illegal.

     8.4   Opinion of Counsel. Seller shall have delivered to Buyer an opinion
           ------------------
of Andrews & Kurth, L.L.P., outside counsel to Seller, dated as of the Closing
Date in form and substance customary for a transaction of this type and
reasonably satisfactory to Buyer.

     8.5   Employment Agreements. Each of Thomas Giannulli, David Norton and
           ---------------------
Sylvia Roma shall have executed employment agreements substantially as set forth
in Exhibit F, no notice of termination shall have been given by any of such
   ---------
persons, and such agreement shall be in full force and effect.

     8.6   No Material Adverse Change. Since September 30, 1999, there shall not
           --------------------------
have been any Material Adverse Change in the condition (financial or otherwise),
properties, business, results of operations, prospects, assets (including
intangible assets), Liabilities (other than Excluded Liabilities) or operations
or results of operations of Seller.

     8.7   Certificates. At the Closing, Seller shall furnish to Buyer a
           ------------
certificate of a duly authorized officer to the effect that each of the
conditions set forth in Sections 8.1, 8.2 and 8.3 (to the extent Seller is a
party or is named therein) of this Agreement are satisfied in all respects and
certifying as to the resolutions adopted by the board of directors of Buyer
approving this Agreement, the Ancillary Agreements and the transactions
contemplated hereby or thereby.

     8.8   Conveyancing Documents; Transaction Documents. Seller shall have
           ---------------------------------------------
executed and delivered each of documents described in Section 3.2 of this
Agreement so as to effect the transfer and assignment to Buyer of all right,
title and interest in and to the Assets and Seller shall have filed (where
necessary) and delivered to Buyer all documents necessary to release the Assets
from all Encumbrances, which documents shall be in a form reasonably
satisfactory to Buyer. Seller shall have executed the Ancillary Agreements to
which Seller is a party.

     8.9   Release of Liens. Imperial Bank shall have unconditionally released
           ----------------
and terminated (in form and substance satisfactory to Buyer in its sole
discretion) all Encumbrances on the Assets, rights or property of Seller in
favor of such bank under the Bank Credit Facility or otherwise and shall have
executed and delivered all documents, instruments and certificates, including,
without limitation, all termination statements under the Uniform Commercial
Code, necessary to evidence such release and termination.

     8.10  Tax Clearance Certificate. Seller shall provide Buyer with a
           -------------------------
clearance certificate or similar document(s) that may be required by any state
taxing authority.

     8.11  Termination of Benefit Plans.  Seller shall have provided Buyer with
           ----------------------------
evidence, reasonably satisfactory to Buyer as to the termination of all Employee
Benefit Plans and settlement of all payments owing by Seller relating to all
Employees.

                                       39
<PAGE>

     8.12  Shareholder Approval. This Agreement and the transactions it
           --------------------
contemplates shall have been approved and adopted by such vote of the holders of
the outstanding shares of Seller's capital stock entitled to vote thereon as is
required to approve such transactions, and shall have otherwise been approved as
required by law and the charter documents of Seller.

     8.13  Escrow Agreement. Buyer and Seller shall have entered into an Escrow
           ----------------
Agreement in substantially the form attached hereto as Exhibit G, and such
                                                       ---------
agreement shall remain in full force and effect.

     8.14  Bank Credit Agreement Modification. Buyer, Seller and Imperial Bank
           ----------------------------------
shall have entered into a modification agreement providing that Seller's total
indebtedness to Imperial Bank is not more than $800,000, and such agreement
shall remain in full force and effect.

     8.15  Provider Select Contract.  Seller shall have entered into a marketing
           ------------------------
agreement with Provider Select, Inc., and such agreement shall remain in full
force and effect.

                                  ARTICLE IX.

                     RISK OF LOSS; CONSENTS TO ASSIGNMENT
                     ------------------------------------

     9.1  Risk of Loss. From the date hereof through the Closing Date, all risk
          ------------
of loss or damage to the property included in the Assets shall be borne by
Seller, and thereafter shall be borne by Buyer. If any portion of the Assets is
destroyed or damaged by fire or any other cause on or prior to the Closing Date,
other than use, wear or loss in the ordinary course of business, Seller shall
give written notice to Buyer as soon as practicable, but in any event within
five (5) calendar days, after discovery of such damage or destruction, the
amount of insurance, if any, covering such Assets and the amount, if any, which
Seller is otherwise entitled to receive as a consequence. Prior to the Closing,
Buyer shall have the option, which shall be exercised by written notice to
Seller within ten (10) calendar days after receipt of Seller's notice or if
there is not ten (10) calendar days prior to the Closing Date, as soon as
practicable prior to the Closing Date, of (a) accepting such Assets in their
destroyed or damaged condition, in which event Buyer shall be entitled to the
proceeds of any insurance or other proceeds payable with respect to such loss,
and the full Purchase Price shall be paid for such Assets, (b) excluding such
Assets from this Agreement, in which event the Purchase Price shall be reduced
by the amount allocated to such Assets, as mutually agreed between the Parties
or (c) terminating this Agreement in accordance with Section 11.1 hereof. If
Buyer accepts such Assets, then, after the Closing, any insurance or other
proceeds shall belong, and shall be assigned to, Buyer without any reduction in
the Purchase Price; otherwise, such insurance proceeds shall belong to Seller.

     9.2  Consents to Assignment. Anything in this Agreement to the contrary
          ----------------------
notwithstanding, this Agreement shall not constitute an agreement to assign any
Contract, Lease, Permit or any claim or right or any benefit arising thereunder
or resulting therefrom if an attempted assignment thereof, without the consent
of a third party thereto, would result in a breach of, constitute (with or
without due notice or lapse of time or both) a default under, result in the
acceleration of, create in any party the right to accelerate, terminate, modify
or cancel, or in any way adversely affect the rights of Buyer thereunder. If
such consent is not obtained, or if an attempted assignment thereof would be
ineffective or would affect the rights thereunder so

                                       40
<PAGE>

that Buyer would not receive all such rights, Seller will cooperate with Buyer,
in all reasonable respects, to provide to Buyer the benefits under any such
Contract, Lease, Permit or any claim or right, including, without limitation,
enforcement for the benefit of Buyer of any and all rights of Seller against a
third party thereto arising out of the breach, default, acceleration,
termination or cancellation by such third party or otherwise. Nothing in this
Section 9.2 shall affect any of Buyer's rights to terminate this Agreement
pursuant to Section 11.1 hereof.

                                  ARTICLE X.

                 ACTIONS BY SELLER AND BUYER AFTER THE CLOSING
                 ---------------------------------------------

     10.1  Collection of Accounts Receivable and Letters of Credit. At the
           -------------------------------------------------------
Closing, Buyer will acquire hereunder, and thereafter Buyer or its designee
shall have the right and authority to collect for Buyer's or its designee's
account, all receivables, letters of credit and other items which constitute a
part of the Assets, and Seller shall within forty-eight (48) hours after receipt
of any payment in respect of any of the foregoing, properly endorse and deliver
to Buyer any letters of credit, documents, cash or checks received on account of
or otherwise relating to any such receivables, letters of credit or other items.
Seller shall promptly transfer or deliver to Buyer or its designee any cash or
other property that Seller may receive in respect of any deposit, prepaid
expense, claim, contract, license, lease, commitment, sales order, purchase
order, letter of credit or receivable of any character, or any other item,
constituting a part of the Assets.

     10.2  Books and Records; Tax Matters.
           ------------------------------

               (a)  Seller agrees that it will cooperate with and make available
to Buyer, during normal business hours, all Books and Records, information and
employees (without substantial disruption of employment) retained and remaining
in existence after the Closing which are necessary or useful in connection with
any tax inquiry, audit, investigation or dispute, any litigation or
investigation or any other matter requiring any such Books and Records,
information or employees for any reasonable business purpose. Buyer shall bear
all of the out-of-pocket costs and expenses (including, without limitation,
attorneys' fees, but excluding reimbursement for salaries and employee benefits)
reasonably incurred in connection with providing such Books and Records,
information or employees. All information received pursuant to this Section
10.2(a) shall be subject to the terms of Section 10.10 of this Agreement.

               (b)  Seller and Buyer shall each (i) provide the other Party with
such assistance as may reasonably be requested by any of them in connection with
the preparation of any return, audit, or other examination by any taxing
authority or judicial or administrative proceedings relating to Liability for
Taxes, (ii) retain and provide the other with any records or other information
that may be reasonably necessary to such return, audit or examination,
proceeding or determination, and (iii) provide the other with any final
determination of any such audit or examination, proceeding, or determination
that affects any amount required to be shown on any tax return of the other for
any period. Without limiting the generality of the foregoing, Buyer and Seller
shall each retain, until the applicable statutes of limitations (including any
extensions) have expired, copies of all tax returns, supporting work schedules,
and other records or information that may be relevant to such returns for all
tax periods or portions thereof ending on or before the Closing Date and shall
not destroy or otherwise dispose of any such records

                                       41
<PAGE>

without first providing the other Party with a reasonable opportunity to review
and copy the same.

               (c)  Following the Closing Date, Seller shall pay promptly when
due all of the debts and Liabilities of Seller, including any Liability for
Taxes, other Assumed Liabilities; provided, however, this covenant shall not
                                  --------  -------
apply to that portion (or all) of any debt that Seller is contesting in good
faith.

     10.3  Survival of Representations, Etc. All of the representations,
           --------------------------------
warranties, covenants and agreements of Seller and Buyer contained in this
Agreement and the other Transaction Documents or in any exhibit to this
Agreement or in the Disclosure Schedule or in any certificate, instrument or
other document delivered by Seller pursuant hereto shall survive the Closing for
a period of (and claims based upon or arising out of such representations,
warranties, covenants and agreements may be asserted at any time before the date
which shall be) one (1) year following the Closing; provided that
                                                    --------
representations, warranties, covenants and agreements relating to Taxes shall
survive until thirty (30) days after expiration of all applicable statutes of
limitations relating to such Taxes. Each Party hereto shall be entitled to rely
upon the representations and warranties of the other Party set forth in this
Agreement. The termination of the representations and warranties provided herein
shall not affect the rights of a Party in respect of any Claim made by such
Party in a writing received by the other Party prior to the expiration of the
applicable survival period provided herein.

     10.4  Escrow and Indemnification.
           --------------------------

                    (a)  All covenants to be performed prior to the Closing
Date, and all representations and warranties in this Agreement or in any
instrument delivered pursuant to this Agreement shall survive the Closing Date
and continue until December 8, 2000 (the "Escrow Termination Date"); provided
that if any claims for indemnification have been asserted with respect to any
such representations and warranties prior to the Escrow Termination Date, the
representations and warranties on which any such claims are based shall continue
in effect until final resolution of any claims, and provided further that
representations, warranties and covenants relating to Taxes shall survive until
30 days after expiration of all applicable statutes of limitations relating to
such Taxes. All covenants to be performed after the Closing date shall continue
indefinitely.

                    (b)  As soon as practicable after the Closing Date, the
Escrow Consideration shall be registered in the name of, and be deposited with,
the Escrow Agent, such deposit to constitute the escrow fund (the "Escrow Fund")
                                                                   -----------
and to be governed by the terms set forth herein and in the Escrow Agreement. In
the event that any Damages (as defined below) arise, the Escrow Fund shall be
available to compensate the Indemnified Persons (defined below) pursuant to the
indemnification obligations of the stockholders of the Seller pursuant to
Section 8.3 and in accordance with the Escrow Agreement. Buyer shall have no
recourse for financial Damages hereunder other than from the Escrow Fund, except
in the event of fraud or willful misconduct by Seller.

                    (c)  Seller shall indemnify, save and hold harmless Buyer,
its Affiliates and subsidiaries, and its and their respective Representatives
(the "Indemnified Parties" and
      -------------------

                                       42
<PAGE>

each, an "Indemnified Party"), from and against any and all Damages incurred in
          -----------------
connection with, arising out of, resulting from or incident to:


                              (i)   any misrepresentation or breach of any
warranty in connection with any of the surviving representations and warranties
given or made by Seller in this Agreement and in the other Transaction Documents
or in the Disclosure Schedule or any other related agreement or any exhibit to
this Agreement;

                              (ii)  any breach of any covenant or agreement by
Seller contained in this Agreement and in the other Transaction Documents or in
the Disclosure Schedule or any other related agreement or any exhibit to this
Agreement;

                              (iii) any and all Damages suffered or incurred by
Buyer by reason of or in connection with any claim or cause of action of any
third party or Governmental Entity to the extent arising out of any action,
inaction, event, condition, liability or obligation of Seller or violation of
law or governmental order, judgment or decree occurring or existing prior to the
Closing Date;

                              (iv)  any Liability (other than Assumed
Liabilities) imposed upon Buyer by reason of Buyer's status as transferee of
Seller's business or the Assets;

                              (v)   any and all amounts which become payable to
any employee of Seller pursuant to any severance or "change in control" plan or
agreement implemented or executed by Seller prior to the Closing Date; or

                              (vi)  any Excluded Liabilities, including, without
limitation, any Liabilities arising from Seller's operation of its business
prior to the Closing, or Excluded Assets.

Notwithstanding any other provisions of this Section 10.4, Seller shall not be
required to indemnify Buyer for any Damages until the aggregate amount of all
such Damages exceeds $100,000 (the "Threshold"), whereupon the Seller shall be
required to indemnify the Buyer for the full amount of such Damages without
deduction. For purposes of this Agreement, "Damages" shall mean, individually
                                            -------
and collectively, all costs, losses (including, without limitation, diminution
in value), Taxes, Liabilities, obligations, damages, lawsuits, deficiencies,
claims, demands, and expenses (whether or not arising out of third-party
claims), including, without limitation, interest, penalties, costs of
mitigation, losses in connection with any Environmental Law (including, without
limitation, any clean-up or remedial action), lost profits and other losses
resulting from any shutdown or curtailment of operations, damages to the
environment, attorneys' fees and all amounts paid in investigation, defense or
settlement of any of the foregoing. As used in this Section 10.4, the term
"Damages" is not limited to matters asserted by third parties against an
Indemnified Party, but includes Damages incurred or sustained by an Indemnified
Party in the absence of third party claims. Payments by an Indemnified Party of
amounts for which such party is indemnified hereunder shall not be a condition
precedent to recovery. Seller's obligation to indemnify Buyer pursuant to this
Section 10.4 shall not limit any other rights, including, without limitation,
rights of contribution which Seller may have under applicable law.

                                       43
<PAGE>

                    (d)  Escrow Period. Subject to the following requirements,
                         -------------
the Escrow Fund shall remain in existence until the Escrow Termination Date (the
"Escrow Period"). Upon the expiration of the Escrow Period, the Escrow Fund
 -------------
shall terminate with respect to all Escrow Shares; provided, however, that the
number of Escrow Shares, which, in the reasonable judgment of Buyer, subject to
the objection of Seller and the subsequent arbitration of the claim in the
manner provided in the Escrow Agreement, are necessary to satisfy any
unsatisfied claims specified in any Officer's Certificate delivered to the
Escrow Agent prior to the expiration of such Escrow Period with respect to facts
and circumstances existing on or prior to the Escrow Termination Date shall
remain in the Escrow Fund (and the Escrow Fund shall remain in existence) until
such claims have been resolved. As soon as all such claims have been resolved,
the Escrow Agent shall deliver to Seller all Escrow Shares and other property
remaining in the Escrow Fund and not required to satisfy such claims.

                    (e)  Distributions; Voting.
                         ---------------------

                         (i)    Any shares of Buyer Common Stock or other equity
securities issued or distributed by Buyer (including shares issued upon a stock
split) ("New Shares") in respect of the Escrow Shares that have not been
released from the Escrow Fund shall be added to the Escrow Fund and become a
part thereof. When and if cash dividends on Escrow Shares in the Escrow Fund
shall be declared and paid, they shall be retained in escrow pending final
distribution of the Escrow Fund and will not be immediately distributed to the
beneficial owners of the Escrow Shares. Such dividends will become part of the
Escrow Fund and will be available to satisfy Damages. Seller shall pay any taxes
on such dividends.


                         (ii)   Seller shall have voting rights with respect to
the Escrow Shares (and on any voting securities added to the Escrow Fund in
respect of such Escrow Shares) so long as such Escrow Shares or other voting
securities are held in the Escrow Fund. As the record holder of such shares, the
Escrow Agent shall vote such shares in accordance with the instructions of
Seller and shall promptly deliver copies of all proxy solicitation materials to
Seller. Buyer shall show the Buyer Common Stock contributed to the Escrow Fund
as issued and outstanding on its balance sheet.

                         (iii)  Method of Asserting Claims. All claims for
                                --------------------------
indemnification by Buyer or any other Indemnified Person pursuant to this
Section 10.4 shall be made in accordance with the provisions of the Escrow
Agreement.

     10.5  Maintenance of Insurance. Seller shall deliver to Buyer certificates
           ------------------------
of insurance or binders reasonably satisfactory to Buyer, issued by one or more
insurance carriers reasonably satisfactory to Buyer, evidencing fully paid and
non-cancelable general liability insurance coverage with respect to claims
arising out of events or occurrences on or prior to the Closing Date (whether or
not reported), in amounts not less than the amounts maintained by Seller on the
date of this Agreement. Such insurance coverage shall name Buyer as an
additional insured.

     10.6  Covenant Not to Compete.
           -----------------------

                                       44
<PAGE>

                    (a)  Seller agrees that for a period of two (2) years after
the Closing Date, Seller shall not, unless acting in accordance with Buyer's
prior written consent, shall, directly or indirectly:

                         (i)   own, manage, join, operate or control, or
participate in the ownership, management, operation or control of, or be
connected as a director, officer, employee, partner, consultant or otherwise
with, or permit their names to be used by or in connection with, any profit or
non-profit business or organization which produces, designs, conducts research
on, provides, sells, distributes or markets products, goods, equipment or
services which, directly or indirectly, competes with the business being
acquired by Buyer pursuant to this Agreement (a "Restricted Business").

                         (ii)  solicit, canvass, induce or encourage directly or
indirectly any employee of Buyer to leave the employment of Buyer;

                         (iii) solicit, canvass, approach or accept any offer
from any person or entity who was at any time during the two (2) years
immediately preceding the Closing Date a customer or supplier of Seller's
business with a view to establishing a relationship with or obtaining the
patronage of that person or entity in a Restricted Business;

                         (iv)  interfere or seek to interfere, directly or
indirectly, with any relationship between Buyer and any client, customer,
employee or supplier of Seller's business.

                    (b)  If any of the separate and independent covenants and
restraints referred to in clause (a) of this Section 10.6 are or become invalid
or unenforceable for any reason then that invalidity or unenforceability will
not affect the validity or enforceability of any other separate and independent
covenants and restraints.

                    (c)  If any prohibition or restriction contained in clause
(a) of this Section 10.6 is judged to go beyond what is reasonable in the
circumstances, but would be judged reasonable if that activity was deleted or
that period or area was reduced, then the prohibitions or restrictions apply
with that activity deleted or period or area reduced by the minimum amount
necessary.

                    (d)  Seller acknowledges that (i) the provisions of this
Section 10.6 are reasonable and necessary to protect the legitimate interests of
Buyer, and (ii) any violation of this Section 10.6 hereof will result in
irreparable injury to Buyer, the exact amount of which will be difficult to
ascertain, and that the remedies at law for any such violation would not be
reasonable or adequate compensation to Buyer for such a violation. Accordingly,
Seller agrees, without limiting the generality of Section 11.11 of this
Agreement, that if Seller violates the provisions of this Section 10.6, in
addition to any other remedy which may be available at law or in equity, Buyer
shall be entitled to specific performance and injunctive relief, without posting
bond or other security, and without the necessity of proving actual damages.

     10.7 Additional Shares of Buyer Common Stock.  If either Jeffrey Brown or
          ---------------------------------------
Michael Singer's employment with the Company is terminated on or before the six-
month anniversary of the Closing Date, with or without cause, voluntarily or
involuntarily (other than for death or disability or following a Change of
Control (as defined in Michael Singer's employment

                                       45
<PAGE>

agreement with Buyer) of Buyer), Buyer shall, upon the six-month anniversary of
the Closing Date, issue to Seller an additional number of shares of Buyer Common
Stock equal to the sum of: (a) 25,000 multiplied by a fraction, the numerator of
which is the difference between six and the number of full months between the
Closing Date and the date of termination of employment of Mr. Brown and the
denominator of which is six and (b) 25,000 multiplied by a fraction, the
numerator of which is the difference between six and the number of full months
between the Closing Date and the date of termination of employment of Mr. Singer
and the denominator of which is six. Such shares shall not be subject to the
terms of the Escrow Agreement, but shall be considered Registrable Securities
pursuant to the Registration Right Agreement.

                                  ARTICLE XI.

                                 MISCELLANEOUS
                                 -------------

     11.1 Termination.
          -----------

          (a)  Termination.  This Agreement shall automatically terminate if the
               -----------
Closing has not occurred on or prior to December 31, 1999. In addition, this
Agreement may be terminated at any time prior to the Closing:

               (i)   by mutual written consent of Buyer and Seller;

               (ii)  by Buyer or Seller by giving written notice if the Closing
shall not have occurred on or before December 31, 1999; provided however, that
                                                        -------- -------
the right be available any Party whose failure to fulfill any obligation under
this Agreement has been the cause of or resulted in the failure of the Closing
to occur on or before such date; or

               (iii) by either Buyer or Seller if a court of competent
jurisdiction or other Governmental Entity shall have issued a final order,
decree or ruling, or taken any other action, having the effect of permanently
restraining, enjoining or otherwise prohibiting the consummation of the
transactions contemplated hereby, and all appeals with respect to such order,
decree, ruling or action have been exhausted or the time for appeal of such
order, decree, ruling or action shall have expired; or

               (iv)  by Buyer upon written notice if there is a material breach
of any representation or warranty of Seller set forth in Article IV hereof or
any covenant or agreement to be performed or complied with by Seller pursuant to
the terms of this Agreement or the failure of a condition set forth in Article
VIII to be satisfied (and such condition is not waived in writing by Buyer) on
or prior to the Closing Date, or the occurrence of any event which results or
could result in the failure of a condition set forth in Article VIII to be
satisfied on or prior to the Closing Date; provided, however, that Buyer may
                                           --------  -------
only terminate this Agreement pursuant to this Section 11.1(a)(iv) if, within
ten (10) business days following written notice thereof, such failure shall not
have been cured; or

               (v)   by Seller upon written notice if there is a material breach
of any representation or warranty of Buyer set forth in Article V hereof or any
covenant or agreement to be performed or complied with by Buyer pursuant to the
terms of this Agreement

                                       46
<PAGE>

or the failure of a condition set forth in Article VII to be satisfied (and such
condition is not waived in writing by Seller) on or prior to the Closing Date,
or the occurrence of any event which results or could result in the failure of a
condition set forth in Article VII to be satisfied on or prior to the Closing
Date; provided, however, that Seller may only terminate this Agreement pursuant
      --------  -------
to this Section 11.1(a)(v) if, within ten (10) business days following written
notice thereof, such failure shall not have been cured; or

               (b)  If the Closing does not occur, all costs and expenses
incurred in connection with this Agreement and the transactions contemplated
hereby including, without limitation, filing fees and the fees and expenses of
advisors, accountants, legal counsel and financial printers, shall be paid by
the Party incurring such expense; provided, that if the Closing occurs, then
Buyer shall pay the reasonable fees and expenses of Seller's legal counsel not
to exceed $50,000 in the aggregate and reasonable fees and expenses of Seller's
accountants not to exceed $30,000 in the aggregate; provided, further, that if
                                                    --------  -------
the Closing fails to occur as the result of the failure of the shareholders of
Seller to approve this Agreement then (i) Seller shall reimburse Buyer for all
out-of-pocket costs and expenses incurred by Buyer in connection with this
Agreement and the transactions contemplated hereby (including, without
limitation, filing fees and the fees and expenses of its advisors, accountants,
legal counsel and financial printers), (ii) Seller shall promptly pay to Buyer
the sum of $200,000 and (iii) all principal amounts (plus accrued interest) of
any indebtedness of Seller to Buyer shall become immediately due and payable,
notwithstanding the terms of such indebtedness; and provided, further, that if
                                                    --------  -------
Seller enters into an agreement with any third party relating to any merger or
consolidation of Seller, the dissolution of Seller or the acquisition (through
license or otherwise) of a material part of the assets of or any equity
interests in Seller, then (i) Seller shall reimburse Buyer for all out-of-pocket
costs and expenses incurred by Buyer in connection with this Agreement and the
transactions contemplated hereby (including, without limitation, filing fees and
the fees and expenses of its advisors, accountants, legal counsel and financial
printers), (ii) Seller shall promptly pay to Buyer the sum of $1,250,000 and
(iii) all principal amounts (plus accrued interest) of any indebtedness of
Seller to Buyer shall become immediately due and payable, notwithstanding the
terms of such indebtedness.

     11.2 Assignment; No Third Party Beneficiaries. Neither this Agreement nor
          ----------------------------------------
any of the rights or obligations hereunder may be assigned by any Party without
the prior written consent of the other Party. Subject to the foregoing, this
Agreement shall be binding upon and inure to the benefit of the Parties hereto
and their respective successors and permitted assigns. This Agreement shall not
confer any right, benefit or remedies upon any person as a third party
beneficiary or otherwise other than the Parties and their respective successors
and permitted assigns; provided, however, that the provisions of Section 10.4 of
                       --------  -------
this Agreement with respect to indemnification are intended for the
benefit of the Indemnified Parties as contemplated therein.

     11.3 Notices. All notices, requests, demands and other communications
          -------
which are required or may be given under this Agreement shall be in writing and
shall be deemed to have been duly given when received if personally delivered;
when transmitted if transmitted by telecopy, electronic or digital transmission
method; the day after it is sent, if sent for next day delivery to a domestic
address by recognized overnight delivery service (e.g., Federal Express); and
                                                  ---
upon receipt, if sent by certified or registered mail, return receipt requested.
In each case notice shall be sent as follows:

                                       47
<PAGE>

          If to Seller, to:

               Physix, Inc.
               Two Greenway Plaza, Suite 610
               Houston, Texas 77046
               Attention:  Its President

          with a copy to:

               Andrews & Kurth, L.L.P.
               2170 Buckthorne, Suite 150
               The Woodlands, Texas 77380
               Attention:  Jeff Harder, Esq.

          If to Buyer, to:

               Data Critical Corporation
               19820 North Creek Parkway, Suite 100,
               Bothell, Washington 98011
               Attention:  Its President

          with a copy to:

               Venture Law Group
               4750 Carillon Point
               Kirkland, Washington 98033
               Attention: Craig Sherman, Esq.

or to such other place and with such other copies as either Party may designate
by written notice to the other Party.  Notwithstanding the foregoing, any Party
may give any notice, request, demand, claim, or other communication hereunder
using any other means (including personal delivery, expedited courier, messenger
service, telecopy, telex, ordinary mail, or electronic mail), but no such
notice, request, demand, claim, or other communication shall be deemed to have
been duly given unless and until it actually is received by the Party for whom
it is intended.

     11.4  Choice of Law; Venue. This Agreement shall be construed, interpreted
           --------------------
and the rights of the parties determined in accordance with the laws of the
State of Washington (without reference to choice of law provisions), except with
respect to matters of law concerning the internal corporate affairs of any
corporate entity which is a party to or the subject of this Agreement, and as to
those matters the law of the jurisdiction under which the respective entity
derives its powers shall govern. Each of the parties to this Agreement consents
to the exclusive jurisdiction and venue of the state and federal courts located
in King County, Washington.

     11.5  Entire Agreement; Amendment and Waiver. This Agreement, the
           --------------------------------------
Transaction Documents, together with all exhibits and schedules hereto and
thereto (including the Disclosure Schedule), constitute the entire agreement
between the Parties pertaining to the subject matter hereof and supersede all
prior agreements, understandings, negotiations and discussions, whether

                                       48
<PAGE>

oral or written, of the Parties. This Agreement may not be amended except by an
instrument in writing signed on behalf of each of the Parties hereto. At any
time prior the Closing Date, any Party may, to the extent legally allowed: (a)
extend the time for the performance of any of the obligations of the other
Party; (b) waive any inaccuracies in the representations and warranties made to
such Party contained herein or in any document delivered pursuant hereto; and
(c) waive compliance with any of the agreements or conditions for the benefit of
such Party contained herein. Any agreement on the part of a Party to any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed on behalf of such Party. No waiver shall be deemed or shall constitute a
waiver of any other provision hereof (whether or not similar), nor shall such
waiver be deemed to extend to any prior or subsequent default, misrepresentation
or breach of warranty or covenant hereunder or affect in any way any rights
arising by virtue of any prior or subsequent default, misrepresentation, breach
of such warranty or covenant.

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

     11.7  Severability. Any term or provision of this Agreement that is invalid
           ------------
or unenforceable in any situation in any jurisdiction shall not affect the
validity or enforceability of the remaining terms and provisions hereof or the
validity or enforceability of the offending term or provision in any other
situation or in any other jurisdiction; provided, that, this Agreement shall not
then substantially deprive any Party of the bargained-for performance of any
other Party. If the final judgment of a court of competent jurisdiction declares
that any term or provision hereof is invalid or unenforceable, the Parties agree
that the court making the determination of invalidity or unenforceability shall
have the power to reduce the scope, duration, or area of the term or provision,
to delete specific words or phrases, or to replace any invalid or unenforceable
term or provision with a term or provision that is valid and enforceable and
that comes closest to expressing the intention of the invalid or unenforceable
term or provision, and this Agreement shall be enforceable as so modified after
the expiration of the time within which the judgment may be appealed.

     11.8  Headings. The titles, captions or headings of the Articles and
           --------
sections herein are for convenience of reference only and are not intended to be
a part of or to affect or restrict the meaning or interpretation of this
Agreement.

     11.9  Press Releases and Public Announcement. Seller shall not issue any
           --------------------------------------
press release or make any public disclosure relating to the subject matter of
this Agreement without the prior written approval of Buyer, which written
approval shall not be unreasonably withheld; provided, however, that Seller may
                                             --------  -------
make any public disclosure it believes in good faith is required by law or
regulation (in which case Seller shall advise Buyer and provide Buyer with a
copy of the proposed disclosure prior to making the disclosure).

     11.10 Cumulative Remedies. All rights and remedies of either Party hereto
           -------------------
are cumulative with, and not exclusive of, any other right or remedy such Party
may otherwise have at law or in equity, and the exercise of one or more rights
or remedies shall not prejudice or impair the concurrent or subsequent exercise
of other rights or remedies.

                                       49
<PAGE>

     11.11  Specific Performance; Attorneys' Fees. The Parties acknowledge and
            -------------------------------------
agree that damages would be an inadequate remedy for any breach of the
provisions of this Agreement and agree that the obligations of the Parties
hereunder shall be specifically enforced in accordance with the terms of this
Agreement. If any Party brings an action to enforce its rights under this
Agreement, including, without limitation, for specific performance, the
prevailing Party shall be entitled to recover its costs and expenses, including,
without limitation, reasonable attorneys' fees, incurred in connection with such
action, including any appeal of such action.

     11.12  Construction. The Parties agree that they have been represented by
            ------------
counsel during the negotiation, preparation and execution of this Agreement and,
therefore, waive the application of any law, regulation, holding or rule of
construction providing that ambiguities in an agreement or other document will
be construed against the party drafting such agreement or document. Any
reference to any federal, state, local, or foreign statute or law shall be
deemed also to refer to all rules and regulations promulgated thereunder, unless
the context requires otherwise.

     11.13  Incorporation of Exhibits and Disclosure Schedule. The exhibits and
            -------------------------------------------------
Disclosure Schedule identified in this Agreement are incorporated herein by
reference and made a part hereof.

     11.14  Confidentiality. The Parties acknowledge that the transaction
            ---------------
described in this Agreement is of a confidential nature and shall not be
disclosed to any person other than any consultant, advisor, Representative or
Affiliates of either such Party, or as required by law, until such time as a
public announcement regarding the transaction is made as provided in Section
11.9 of this Agreement.

                            [Signature page follows]

                                       50
<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed on their respective behalf, by their respective officers
thereunto duly authorized, all as of the day and year first above written.



                              PHYSIX, INC., a Texas corporation


                              By: /s/ Tom Giannulli
                                  ----------------------------
                              Name:   Tom Giannulli
                                   ---------------------------
                              Title:  CEO / President
                                    --------------------------


                              DATA CRITICAL CORPORATION,
                              a Delaware corporation


                              By: /s/ Jeffrey S. Brown
                                  ----------------------------
                              Name:   Jeffrey S. Brown
                                    --------------------------
                              Title:  President / CEO
                                     -------------------------



                      [SIGNATURE PAGE TO ASSET PURCHASE AGREEMENT]

                                       51

<PAGE>


                                                                     EXHIBIT 4.1


                           DATA CRITICAL CORPORATION


                         REGISTRATION RIGHTS AGREEMENT


                               December 17, 1999
<PAGE>

                           DATA CRITICAL CORPORATION


                         REGISTRATION RIGHTS AGREEMENT
                         -----------------------------


          This Registration Rights Agreement (the "Agreement") is made as of the
                                                   ---------
17th day of December, 1999, by and among Data Critical Corporation, a Delaware
corporation (the "Company") and Physix, Inc., a Texas corporation ("Investor")
                  -------                                           --------

                                    RECITALS
                                    --------

          The Company and Investor have entered into an Asset Purchase Agreement
dated December 8, 1999 (the "Purchase Agreement") pursuant to which the Company
                             ------------------
has purchased substantially all of the assets and assumed substantially all of
the liabilities of Investor in exchange for issuing to Investor shares of the
Company's Common Stock to be held in escrow pursuant to the terms of the Escrow
Agreement between the Company and Investor of even date herewith (the "Escrow
                                                                       ------
Agreement").  A condition to closing in the Purchase Agreement is that the
- ---------
Company enter into this Agreement in order to provide the Investors with certain
piggyback registration rights.  Any capitalized terms used but not defined
herein shall have the meanings given to them in the Purchase Agreement.

                                   AGREEMENT
                                   ---------

          The parties hereby agree as follows:

          1.  Registration Rights.  The Company and Investor covenant and agree
              -------------------
as follows:

              1.1  Definitions.  For purposes of this Agreement:
                   -----------

                   (a) The terms "register," "registered," and "registration"
                                  --------    ----------        ------------
refer to a registration effected by preparing and filing a registration
statement or similar document in compliance with the Securities Act of 1933, as
amended (the "Securities Act"), and the declaration or ordering of effectiveness
              --------------
of such registration statement or document;

                   (b) The term "Registrable Securities" means (i) any shares
                                 ----------------------
of Common Stock issued to Investor pursuant to the Purchase Agreement that have
already been released from escrow pursuant to the terms of the Purchase
Agreement and the Escrow Agreement and (ii) any other shares of Common Stock of
the Company issued as (or issuable upon the conversion or exercise of any
warrant, right or other security which is issued as) a dividend or other
distribution with respect to, or in exchange for or in replacement of, the
shares listed in (i); provided, however, that the foregoing definition shall
                      --------  -------
exclude in all cases any Registrable Securities sold by a person in a
transaction in which his or her rights under this Agreement are not assigned.
Notwithstanding the foregoing, Common Stock shall only be treated as Registrable
Securities if and so long as it has not been (A) sold to or through a broker or
dealer or underwriter in a public distribution or a public securities
transaction, or (B) sold in a transaction exempt from the registration and
prospectus delivery requirements of the Securities Act under Section 4(1)
thereof
<PAGE>

so that all transfer restrictions, and restrictive legends with respect thereto,
if any, are removed upon the consummation of such sale;

               (c) The term "Holder" means any person owning or having the right
                             ------
to acquire Registrable Securities or any assignee thereof in accordance with
Section 1.10 of this Agreement; and

               (d) The term "SEC" means the Securities and Exchange Commission.
                             ---

          1.2  Company Registration.  If (but without any obligation to do so),
               --------------------
the Company proposes to register (including for this purpose a registration
effected by the Company for stockholders other than the Holders) any of its
stock under the Securities Act in connection with the public offering of such
securities solely for cash (other than a registration relating solely to the
sale of securities to participants in a Company stock plan or a transaction
covered by Rule 145 under the Securities Act, a registration in which the only
stock being registered is Common Stock issuable upon conversion of debt
securities which are also being registered, or any registration on any form
which does not include substantially the same information as would be required
to be included in a registration statement covering the sale of the Registrable
Securities), the Company shall, at such time, promptly give each Holder written
notice of such registration.  Upon the written request of each Holder given
within twenty (20) days after mailing of such notice by the Company in
accordance with Section 3.3, the Company shall, subject to the provisions of
this Agreement, cause to be registered under the Securities Act all of the
Registrable Securities that each such Holder has requested to be registered.

          1.3  Obligations of the Company.  Whenever required under this
               --------------------------
Agreement to effect the registration of any Registrable Securities, the Company
shall, as expeditiously as reasonably possible:

               (a) Prepare and file with the SEC a registration statement with
respect to such Registrable Securities and use its best efforts to cause such
registration statement to become effective, and, upon the request of the Holders
of a majority of the Registrable Securities registered thereunder, keep such
registration statement effective for up to ninety (90) days.  The Company shall
not be required to file, cause to become effective or maintain the effectiveness
of any registration statement that contemplates a distribution of securities on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act.

               (b) Prepare and file with the SEC such amendments and supplements
to such registration statement and the prospectus used in connection with such
registration statement as may be necessary to comply with the provisions of the
Securities Act with respect to the disposition of all securities covered by such
registration statement for up to ninety (90) days.

               (c) Furnish to the Holders such numbers of copies of a
prospectus, including a preliminary prospectus, in conformity with the
requirements of the Securities Act, and such other documents as they may
reasonably request in order to facilitate the disposition of Registrable
Securities owned by them.

                                      -2-
<PAGE>

               (d) Use its best efforts to register and qualify the securities
covered by such registration statement under such other securities or Blue Sky
laws of such jurisdictions as shall be reasonably requested by the Holders,
provided that the Company shall not be required in connection therewith or as a
- --------
condition thereto to qualify to do business or to file a general consent to
service of process in any such states or jurisdictions.

               (e) In the event of any underwritten public offering, enter into
and perform its obligations under an underwriting agreement, in usual and
customary form, with the managing underwriter of such offering. Each Holder
participating in such underwriting shall also enter into and perform its
obligations under such an agreement.

               (f) Notify each Holder of Registrable Securities covered by such
registration statement at any time when a prospectus relating thereto is
required to be delivered under the Securities Act of the happening of any event
as a result of which the prospectus included in such registration statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading in the light of the circumstances then
existing, such obligation to continue for ninety (90) days.

               (g) Provide a transfer agent and registrar for all Registrable
Securities registered pursuant hereunder and a CUSIP number for all such
Registrable Securities, in each case not later than the effective date of such
registration.

          1.4  Furnish Information.  It shall be a condition precedent to the
               -------------------
obligations of the Company to take any action pursuant to this Agreement with
respect to the Registrable Securities of any selling Holder that such Holder
shall furnish to the Company such information regarding itself, the Registrable
Securities held by it, and the intended method of disposition of such securities
as shall be required to effect the registration of such Holder's Registrable
Securities.

          1.5  Expenses of Registration.  All expenses other than underwriting
               ------------------------
discounts and commissions incurred in connection with registrations, filings or
qualifications of Registrable Securities pursuant to this Agreement for each
Holder (which right may be assigned as provided in Section 1.10), including
(without limitation) all registration, filing, and qualification fees, printers'
and accounting fees, fees and disbursements of counsel for the Company and the
reasonable fees and disbursements of one counsel for the selling Holder or
Holders selected by them with the approval of the Company, which approval shall
not be unreasonably withheld, shall be borne by the Company.

          1.6  Underwriting Requirements.  In connection with any offering
               -------------------------
involving an underwriting of shares of the Company's capital stock, the Company
shall not be required to include any of the Holders' securities in such
underwriting unless they accept the terms of the underwriting as agreed upon
between the Company and the underwriters selected by it (or by other persons
entitled to select the underwriters), and then only in such quantity as the
underwriters determine in their sole discretion will not jeopardize the success
of the offering by the Company.  If the total amount of securities, including
Registrable Securities, requested by

                                      -3-
<PAGE>

stockholders to be included in such offering exceeds the amount of securities
sold other than by the Company that the underwriters determine in their sole
discretion is compatible with the success of the offering, then the Company
shall be required to include in the offering only that number of such
securities, including Registrable Securities, which the underwriters determine
in their sole discretion will not jeopardize the success of the offering (the
securities so included to be apportioned pro rata among the selling stockholders
according to the total amount of securities entitled to be included therein
owned by each selling stockholder or in such other proportions as shall mutually
be agreed to by such selling stockholders) but in no event shall the amount of
securities of the selling Holders included in the offering be reduced below
twenty percent (20%) of the total amount of securities included in such
offering; provided that the registration rights of the selling Holders hereunder
          --------
are expressly subordinate to the registration rights of the parties to the
Company's Investors' Rights Agreement ("Prior Rights Holders") dated as of
                                        ---------------------
February 22, 1995, as amended to date, and no securities held by a selling
Holder hereunder shall be included in any registration if any securities held by
any Prior Rights Holders are excluded. For purposes of the preceding
parenthetical concerning apportionment, for any selling stockholder which is a
holder of Registrable Securities and which is a partnership or corporation, the
partners, retired partners and stockholders of such holder, or the estates and
family members of any such partners and retired partners and any trusts for the
benefit of any of the foregoing persons shall be deemed to be a single "selling
                                                                       --------
stockholder," and any pro-rata reduction with respect to such "selling
- -----------
stockholder" shall be based upon the aggregate amount of shares carrying
registration rights owned by all entities and individuals included in such
"selling stockholder," as defined in this sentence.

          1.7  Delay of Registration.  No Holder shall have any right to obtain
               ---------------------
or seek an injunction restraining or otherwise delaying any such registration as
the result of any controversy that might arise with respect to the
interpretation or implementation of this Agreement.

          1.8  Indemnification.  In the event any Registrable Securities are
               ---------------
included in a registration statement under this Agreement:

               (a) To the extent permitted by law, the Company will indemnify
and hold harmless each Holder, any underwriter (as defined in the Securities
Act) for such Holder and each person, if any, who controls such Holder or
underwriter within the meaning of the Securities Act or the Securities Exchange
Act of 1934, as amended (the "Exchange Act"), against any losses, claims,
                              ------------
damages, or liabilities (joint or several) to which they may become subject
under the Securities Act, the Exchange Act or other federal or state law,
insofar as such losses, claims, damages, or liabilities (or actions in respect
thereof) arise out of or are based upon any of the following statements,
omissions or violations (collectively a "Violation"):  (i) any untrue
                                         ---------
statement or alleged untrue statement of a material fact contained in such
registration statement, including any preliminary prospectus or final prospectus
contained therein or any amendments or supplements thereto, (ii) the omission or
alleged omission to state therein a material fact required to be stated therein,
or necessary to make the statements therein not misleading, or (iii) any
violation or alleged violation by the Company of the Securities Act, the
Exchange Act, any state securities law or any rule or regulation promulgated
under the Securities Act, the Exchange Act

                                      -4-
<PAGE>

or any state securities law; and the Company will pay to each such Holder,
underwriter or controlling person, as incurred, any legal or other expenses
reasonably incurred by them in connection with investigating or defending any
such loss, claim, damage, liability, or action; provided, however, that the
                                                --------  -------
indemnity agreement contained in this subsection 1.8(a) shall not apply to
amounts paid in settlement of any such loss, claim, damage, liability, or action
if such settlement is effected without the consent of the Company (which consent
shall not be unreasonably withheld), nor shall the Company be liable to any
Holder, underwriter or controlling person for any such loss, claim, damage,
liability, or action to the extent that it arises out of or is based upon a
Violation which occurs in reliance upon and in conformity with written
information furnished expressly for use in connection with such registration by
any such Holder, underwriter or controlling person.

               (b) To the extent permitted by law, each selling Holder will
indemnify and hold harmless the Company, each of its directors, each of its
officers who has signed the registration statement, each person, if any, who
controls the Company within the meaning of the Securities Act, any underwriter,
any other Holder selling securities in such registration statement and any
controlling person of any such underwriter or other Holder, against any losses,
claims, damages, or liabilities (joint or several) to which any of the foregoing
persons may become subject, under the Securities Act, the Exchange Act or other
federal or state law, insofar as such losses, claims, damages, or liabilities
(or actions in respect thereto) arise out of or are based upon any Violation, in
each case to the extent (and only to the extent) that such Violation occurs in
reliance upon and in conformity with written information furnished by such
Holder expressly for use in connection with such registration; and each such
Holder will pay, as incurred, any legal or other expenses reasonably incurred by
any person intended to be indemnified pursuant to this subsection 1.8(b), in
connection with investigating or defending any such loss, claim, damage,
liability, or action; provided, however, that the indemnity agreement contained
                      --------  -------
in this subsection 1.8(b) shall not apply to amounts paid in settlement of any
such loss, claim, damage, liability or action if such settlement is effected
without the consent of the Holder, which consent shall not be unreasonably
withheld; provided, that in no event shall any indemnity under this subsection
          --------
1.8(b) exceed the net proceeds from the offering received by such Holder, except
in the case of willful fraud by such Holder.

               (c) Promptly after receipt by an indemnified party under this
Section 1.8 of notice of the commencement of any action (including any
governmental action), such indemnified party will, if a claim in respect thereof
is to be made against any indemnifying party under this Section 1.8, deliver to
the indemnifying party a written notice of the commencement thereof and the
indemnifying party shall have the right to participate in, and, to the extent
the indemnifying party so desires, jointly with any other indemnifying party
similarly noticed, to assume the defense thereof with counsel mutually
satisfactory to the parties; provided, however, that an indemnified party
                             --------  -------
(together with all other indemnified parties which may be represented without
conflict by one counsel) shall have the right to retain one separate counsel,
with the reasonable fees and expenses to be paid by the indemnifying party, if
representation of such indemnified party by the counsel retained by the
indemnifying party would be inappropriate due to actual or potential differing
interests between such indemnified party and any other party represented by such
counsel in such proceeding.  The failure to deliver written notice to the

                                      -5-
<PAGE>

indemnifying party within a reasonable time of the commencement of any such
action, if prejudicial to its ability to defend such action, shall relieve such
indemnifying party of any liability to the indemnified party under this Section
1.8, but the omission so to deliver written notice to the indemnifying party
will not relieve it of any liability that it may have to any indemnified party
otherwise than under this Section 1.8.

               (d) If the indemnification provided for in this Section 1.8
is held by a court of competent jurisdiction to be unavailable to an indemnified
party with respect to any loss, liability, claim, damage or expense referred to
therein, then the indemnifying party, in lieu of indemnifying such indemnified
party hereunder, shall contribute to the amount paid or payable by such
indemnified party as a result of such loss, liability, claim, damage, or expense
in such proportion as is appropriate to reflect the relative fault of the
indemnifying party on the one hand and of the indemnified party on the other in
connection with the statements or omissions that resulted in such loss,
liability, claim, damage or expense as well as any other relevant equitable
considerations; provided, that in no event shall any contribution by a Holder
                --------
under this Subsection 1.8(d) exceed the net proceeds from the offering received
by such Holder, except in the case of willful fraud by such Holder. The relative
fault of the indemnifying party and of the indemnified party shall be determined
by reference to, among other things, whether the untrue or alleged untrue
statement of a material fact or the omission to state a material fact relates to
information supplied by the indemnifying party or by the indemnified party and
the parties' relative intent, knowledge, access to information, and opportunity
to correct or prevent such statement or omission.

               (e) Notwithstanding the foregoing, to the extent that the
provisions on indemnification and contribution contained in the underwriting
agreement entered into in connection with the underwritten public offering are
in conflict with the foregoing provisions, the provisions in the underwriting
agreement shall control.

               (f) The obligations of the Company and Holders under this
Section 1.8 shall survive the completion of any offering of Registrable
Securities in a registration statement under this Agreement, and otherwise.

          1.9  Reports Under Securities Exchange Act of 1934.  With a view to
               ---------------------------------------------
making available to the Holders the benefits of Rule 144 promulgated under the
Securities Act and any other rule or regulation of the SEC that may at any time
permit a Holder to sell securities of the Company to the public without
registration or pursuant to a registration on Form S-3, the Company agrees to:

               (a) make and keep public information available, as those terms
are understood and defined in SEC Rule 144, at all times so long as the Company
remains subject to the periodic reporting requirements under Sections 13 or
15(d) of the Exchange Act;

               (b) file with the SEC in a timely manner all reports and other
documents required of the Company under the Securities Act and the Exchange Act;
and

                                      -6-
<PAGE>

               (c) furnish to any Holder, so long as the Holder owns any
Registrable Securities, forthwith upon request (i) a written statement by the
Company that it has complied with the reporting requirements of SEC Rule 144 (at
any time after December 17, 2000), the Securities Act and the Exchange Act (at
any time after it has become subject to such reporting requirements), (ii) a
copy of the most recent annual or quarterly report of the Company and such other
reports and documents so filed by the Company and (iii) such other information
as may be reasonably requested in availing any Holder of any rule or regulation
of the SEC which permits the selling of any such securities without registration
or pursuant to such form.

          1.10 Assignment of Registration Rights.  The rights to cause the
               ---------------------------------
Company to register Registrable Securities pursuant to this Agreement may be
assigned (but only with all related obligations) by Investor to its shareholders
in connection with the distribution of assets and liquidation of Investor,
provided the Company is, within a reasonable time after such transfer, furnished
- --------
with written notice of the name and address of such transferee or assignee and
the securities with respect to which such registration rights are being
assigned; and provided, further, that such assignment shall be effective only if
              --------  -------
immediately following such transfer the further disposition of such securities
by the transferee or assignee is restricted under the Securities Act.  For the
purposes of determining the number of shares of Registrable Securities held by a
transferee or assignee, the holdings of transferees and assignees of a
partnership who are partners or retired partners of such partnership (including
spouses and ancestors, lineal descendants and siblings of such partners or
spouses who acquire Registrable Securities by gift, will or intestate
succession) shall be aggregated together and with the partnership; provided that
all assignees and transferees who would not qualify individually for assignment
of registration rights shall have a single attorney-in-fact for the purpose of
exercising any rights, receiving notices or taking any action under this
Agreement.

     2.   Termination.
          -----------

          2.1  Termination of Registration Rights.  No Holder shall be entitled
               ----------------------------------
to exercise any right provided for in this Agreement after the earlier of (i)
December 17, 2001, (ii) such time as Rule 144 or another similar exemption under
the Securities Act is available for the sale of all of such Holder's shares
during a three (3)-month period without registration, or (iii) upon termination
of the entire Agreement upon a change in control of the Company, as provided in
Section 2.2.

          2.2  Termination of Entire Agreement Upon Change of Control.  This
               ------------------------------------------------------
Agreement shall terminate, and have no further force and effect, when the
Company shall sell, convey, or otherwise dispose of all or substantially all of
its property or business or merge into or consolidate with any other corporation
(other than a wholly-owned subsidiary corporation) or effect any other
transaction or series of related transactions in which more than 50% of the
voting power of the Company is disposed of, provided that this Agreement shall
                                            --------
not be terminated following a merger effected solely for the purpose of changing
the domicile of the Company.

                                      -7-
<PAGE>

     3.   Miscellaneous.
          -------------

          3.1  Successors and Assigns.  Except as otherwise provided in this
               ----------------------
Agreement, the terms and conditions of this Agreement shall inure to the benefit
of and be binding upon the respective permitted successors and assigns of the
parties (including transferees of any of the Common Stock).  Nothing in this
Agreement, express or implied, is intended to confer upon any party other than
the parties hereto or their respective successors and assigns any rights,
remedies, obligations, or liabilities under or by reason of this Agreement,
except as expressly provided in this Agreement.

          3.2  Amendments and Waivers.  Any term of this Agreement may be
               ----------------------
amended or waived only with the written consent of the Company and the holders
of a majority of the Registrable Securities then outstanding.  Any amendment or
waiver effected in accordance with this paragraph shall be binding upon each
party to the Agreement, whether or not such party has signed such amendment or
waiver, each future holder of all such Registrable Securities, and the Company.

          3.3  Notices.  Unless otherwise provided, any notice required or
               -------
permitted by this Agreement shall be in writing and shall be deemed sufficient
upon delivery, when delivered personally or by overnight courier or sent by
telegram or fax, or forty-eight (48) hours after being deposited in the U.S.
mail, as certified or registered mail, with postage prepaid, and addressed to
the party to be notified at such party's address or fax number as set forth on
Exhibit A hereto or as subsequently modified by written notice.
- ---------

          3.4  Severability.  If one or more provisions of this Agreement are
               ------------
held to be unenforceable under applicable law, the parties agree to renegotiate
such provision in good faith.  In the event that the parties cannot reach a
mutually agreeable and enforceable replacement for such provision, then (a) such
provision shall be excluded from this Agreement, (b) the balance of the
Agreement shall be interpreted as if such provision were so excluded and (c) the
balance of the Agreement shall be enforceable in accordance with its terms.

          3.5  Governing Law.  This Agreement and all acts and transactions
               -------------
pursuant hereto shall be governed, construed and interpreted in accordance with
the laws of the State of Washington, without giving effect to principles of
conflicts of laws.

          3.6  Counterparts.  This Agreement may be executed in two or more
               ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

          3.7  Titles and Subtitles.  The titles and subtitles used in this
               --------------------
Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.


                            [Signature Page Follows]

                                      -8-
<PAGE>

     The parties have executed this Registration Rights Agreement as of the date
first above written.


COMPANY:                                 INVESTOR:

DATA CRITICAL CORPORATION                PHYSIX, INC.


By: /s/ Jeffrey S. Brown                 By: /s/ William T. Mullaney
   -------------------------                ------------------------------

Name: Jeffrey S. Brown                   Name: William T. Mullaney
     -----------------------                  ----------------------------
                (print)                                   (print)

Title: President/CEO                     Title: Chairman of the Board
      ----------------------                   ---------------------------

Address: 19800 Northcreek Parkway        Address:  31 N. Brokenfern Dr.
         Suite 100                                 The Woodlands, TX  77380
         Bothell, WA  98011

Fax:     (425) 482-7010                  Fax:      (281) 364-1082


                                      -9-

<PAGE>


                                                                    EXHIBIT 10.1

                           DATA CRITICAL CORPORATION

                              EMPLOYMENT AGREEMENT
                              --------------------

          This Employment Agreement (the "Agreement") is dated as of December 8,
                                          ---------
1999 by and between Thomas Giannulli ("Employee") and Data Critical Corporation,
                                       --------
a Delaware corporation (the "Company").
                             -------

          1.  Term of Agreement.  This Agreement shall commence on the Closing
              -----------------
Date (as defined in the Asset Purchase Agreement dated December 8, 1999 by and
between Physix, Inc. and Data Critical Corporation) (the "Effective Date") and
                                                          --------------
shall have a term of one (1) year (the "Original Term").  This Agreement may be
                                        -------------
terminated by either party, with or without cause, on 30 days' written notice to
the other party.  This Agreement may be extended for an additional one year
after the end of the Original Term if the parties mutually agree in writing to
such extension.

          2.   Duties.
               ------

               (a) Position. Employee shall be employed as Vice President of
                   --------
Advanced Research and be considered an officer of the Company, and as such will
have responsibility for development, for release by the Company, of the beta
test version of the Internet eCompendia system that is acceptable to the Company
and that incorporates and includes, but is not limited to, the web-based
functionality for patient lists, medications, allergies, immunizations,
diagnoses, vitals and notes with EM codes ("Milestone 1"). Data Critical also
                                            -----------
desires functionality to include prescription writing and charge capture. In
addition, Employee will play a key role in additional projects to be mutually
agreed upon by both parties, one project of which will be mutually agreed upon
within two weeks of the Effective Date and will be considered "Milestone 2".
                                                               -----------
Employee will report to the Company's Chief Scientist.

               (b) Obligations to the Company. Employee agrees to the best of
                   --------------------------
his or her ability and experience that he or she will at all times loyally and
conscientiously perform all of the duties and obligations required of and from
Employee pursuant to the express and implicit terms hereof, and to the
reasonable satisfaction of the Company. During the term of Employee's employment
relationship with the Company, Employee further agrees that he or she will
devote all of his or her business time and attention to the business of the
Company, the Company will be entitled to all of the benefits and profits arising
from or incident to all such work services and advice, Employee will not render
commercial or professional services of any nature to any person or organization,
whether or not for compensation, without the prior written consent of the
Company's Board of Directors, and Employee will not directly or indirectly
engage or participate in any business that is competitive in any manner with the
business of the Company. Nothing in this Agreement will prevent Employee from
accepting speaking or presentation engagements in exchange for honoraria or from
serving on boards of charitable organizations, or from owning no more than 1% of
the outstanding equity securities of a corporation whose stock is listed on a
national stock exchange or the Nasdaq National Market. Employee will comply with
and be bound by the Company's operating policies, procedures and practices from
time to time in effect during the term of Employee's employment. The Company
acknowledges and agrees that
<PAGE>

Employee may serve as a member of the Board of Directors of Sense Houston
Publishing and Interactive Reservations, Inc.

          3.   At-Will Employment.  The Company and Employee acknowledge that
               ------------------
Employee's employment is and shall continue to be at-will, as defined under
applicable law, and that Employee's employment with the Company may be
terminated by either party at any time for any or no reason.  If Employee's
employment terminates for any reason, Employee shall not be entitled to any
payments, benefits, damages, award or compensation other than as provided in
this Agreement.  The rights and duties created by this Section 3 may not be
modified in any way except by a written agreement executed by the Chief
Executive Officer of the Company.

          4.   Compensation.  For the duties and services to be performed by
               ------------
Employee hereunder, the Company shall pay Employee, and Employee agrees to
accept, the salary, stock options, bonuses and other benefits described below in
this Section 4.

               (a)  Salary. Employee shall receive a monthly salary of $13,500,
                    ------
which is equivalent to $162,000.00 on an annualized basis. Employee's monthly
salary will be payable in two equal payments per month pursuant to the Company's
normal payroll practices. The Employee's base salary shall be reviewed at the
end of the year 2000 by the Board, its Compensation Committee or the Chief
Executive Officer of the Company, and any increase will be effective as of the
date determined appropriate by the Board, its Compensation Committee or the
Chief Executive Officer. Employee's salary shall be reviewed on at least an
annual basis thereafter.

               (b) Stock Options and Other Incentive Programs. Employee shall be
                   ------------------------------------------
eligible to participate in any stock option or other incentive programs
available to officers or employees of the Company. In connection with the
commencement of Employee's employment, the Board of Directors shall grant to
Employee two options to purchase an aggregate of 145,000 shares of the Company's
Common Stock both with an exercise price equal to the fair market value as of
the close of market on the Effective Date. The terms of the options shall be as
follows:

                    (i)  an option to purchase 75,000 shares (the "Standard
                                                                   --------
Option") that shall vest over four years as follows: twenty-five percent (25%),
- ------
or 18,750 shares, shall vest on the first anniversary of the Effective Date and
the remaining seventy-five percent (75%), or 56,250 shares, shall vest in
quarterly installments over the following three years (four years to full
vesting).

                    (ii) an option to purchase 70,000 shares (the "Milestone
                                                                   ---------
Option") that shall vest as follows:
- ------

                         (1)  10,000 shares shall vest in full upon each of the
dates that the Company begins to recognize revenue for its first five (5)
Internet portal transactions that Employee initiates and completes involving the
distribution of Data Critical products relating to EMR technology (the "Portal
                                                                        ------
Transactions") up to a maximum of 50,000 shares; provided that each Portal
- ------------                                     --------
Transaction must have received the prior approval of the Chief Executive Officer
and

                                      -2-
<PAGE>

the Chief Financial Officer of the Company; and provided further that Employee
                                                ----------------
shall work in conjunction with a designated Company officer on each of the
Portal Transactions; and

                    (2)  10,000 shares shall vest in full upon each of the dates
that the Company begins to recognize revenue for its first two (2) healthcare
group buying contracts that Employee initiates and completes involving the
distribution of Data Critical products relating to EMR technology (the
"Healthcare Contracts") up to a maximum of 20,000 shares; provided that each of
 --------------------
the Healthcare Contracts must have received the prior approval of the Chief
Executive Officer and the Chief Financial Officer of the Company; and provided
                                                                      --------
further that Employee shall work in conjunction with a designated Company
- -------
officer on each of the Healthcare Contracts.

                    (3) All unvested Option shares subject to the Milestone
Option shall vest in full five (5) years after the Effective Date if Employee is
still employed by the Company.

     Vesting on all stock option grants will, of course, cease upon on
termination of Employee's employment with the Company.  Each option granted will
be an incentive stock option to the maximum extent allowed by the Internal
Revenue Code of 1986, as amended, and will be subject to the terms of the
Company's 1999 Stock Option Plan and the Stock Option Agreement between Employee
and the Company.  Subject to the discretion of the Company's Board of Directors,
you may be eligible to receive additional grants of stock options or purchase
rights from time to time in the future, on such terms and subject to such
conditions as the Board of Directors shall determine as of the date of any such
grant.

     Notwithstanding the above and subject to the provisions of Section 10
below, in the event of a Change of Control (as defined below), 100% of all
shares subject to the Standard Option that have not yet become exercisable shall
become exercisable on the effective date of such Change in Control.  For
purposes of this Agreement, "Change of Control" shall mean the occurrence of any
                             -----------------
of the following events: (i) an acquisition of the Company by another entity by
means of any transaction or series of related transactions (including, without
limitation, any reorganization, merger or consolidation but excluding any merger
effected exclusively for the purpose of changing the domicile of the Company),
or (ii) a sale of all or substantially all of the assets of the Company
(collectively, a "Merger"), so long as the Company's stockholders of record
                  ------
immediately prior to such Merger will, immediately after such Merger, hold less
than 50% of the voting power of the surviving or acquiring entity.



          (c)  Bonuses.
               -------

               (i)    On December 31, 2000, Employee shall receive a $50,000
pre-tax cash bonus from the Company, provided that Employee is still employed
                                     --------
at the Company on such date.

               (ii)   In 2001, Employee shall also be eligible to receive a
year-end cash bonus equal to 20% of Employee's annual salary. Such bonus shall
be based on achievement of performance objectives established by Employee and
agreed to by the Board or any

                                      -3-
<PAGE>

Compensation Committee thereof. At the end of each calendar year thereafter,
Employee shall be eligible for such incentive compensation or bonus as shall be
determined by the Board or any Compensation Committee thereof.

               (iii)  Upon the achievement of Milestone 1 (as defined above),
Employee shall be eligible to receive the following pre-tax cash bonus, to be
paid at the end of the calendar year in which Milestone 1 was achieved,
depending on the date of achievement:



             -------------------------------------------------------------
               Beta Test Product Release Date               Pre-Tax Cash
                (Achievement of Milestone 1)                Bonus Earned
             -------------------------------------------------------------
                 On or before March 31, 2000                  $175,000
             -------------------------------------------------------------
                 Between April 1, 2000 and April 30,          $150,000
                 2000
             -------------------------------------------------------------
                 Between May 1, 2000 and May 31, 2000         $125,000
             -------------------------------------------------------------
                 Between June 1, 2000 and June 15,            $120,000
                 2000:
             -------------------------------------------------------------
                 Between June 16, 2000 and June 30, 2000:     $110,000
             -------------------------------------------------------------
                 Between July 1, 2000 and July 15,            $100,000
                 2000:
             -------------------------------------------------------------
                 Between July 16, 2000 and July 31, 2000      $ 75,000
             -------------------------------------------------------------
                 Between August 1, 2000 and August 15,        $ 50,000
                 2000
             -------------------------------------------------------------
                 Between August 16, 2000 and August 31, 2000  $ 25,000
             -------------------------------------------------------------
                 After August 31, 2000                        No Bonus
             -------------------------------------------------------------

                       (iii)   Upon the achievement of Milestone 2 (as defined
above), Employee shall be eligible to receive the following pre-tax cash bonus,
to be paid at the end of the calendar year in which Milestone 2 was achieved,
depending on the date of achievement:





                 --------------------------------------------------------
                                                          Pre-Tax Cash
                     Achievement of Milestone 2           Bonus Earned
                 --------------------------------------------------------
                    On or before August 31, 2000           $175,000
                 --------------------------------------------------------
                    Between September 1, 2000 and
                    September 30, 2000                     $150,000
                 --------------------------------------------------------
                    Between October 1, 2000 and
                    October 31, 2000                       $125,000
                 --------------------------------------------------------
                    Between November 1, 2000 and           $120,000
                 --------------------------------------------------------

                                      -4-
<PAGE>

                ---------------------------------------------------------
                     November 15, 2000:
                ---------------------------------------------------------
                     Between November 16, 2000 and          $110,000
                     November 30, 2000:
                ---------------------------------------------------------
                     Between December 1, 2000 and           $100,000
                     December 31, 2000:
                ---------------------------------------------------------
                     Between January 1, 2001 and            $ 90,000
                     January 15, 2001
                ---------------------------------------------------------
                     Between January 16, 2001 and           $ 75,000
                     January 31, 2001
                ---------------------------------------------------------
                     Between February 1, 2001 and           $ 50,000
                     February 15, 2001
                ---------------------------------------------------------
                     Between February 16, 2001 and March    $ 25,000
                     2, 2001
                ---------------------------------------------------------
                     After March 2, 2001                    No Bonus
                ---------------------------------------------------------


          (d)   Additional Benefits. Employee will be eligible to participate in
                -------------------
the Company's employee benefit plans of general application, including without
limitation, those plans covering medical, disability and life insurance in
accordance with the rules established for individual participation in any such
plan and under applicable law. Employee will be eligible for vacation and sick
leave in accordance with the policies in effect during the term of this
Agreement and will receive such other benefits as the Company generally provides
to its other employees of comparable position and experience.

          (e)   Reimbursement of Other Expenses. Employee shall be authorized to
                -------------------------------
incur on behalf and for the benefit of, and shall be reimbursed by, the Company
for reasonable expenses, provided that such expenses are substantiated in
accordance with Company policies.

     5.   Termination of Employment and Severance Benefits.
          ------------------------------------------------

          (a) Termination of Employment.  This Agreement may be terminated
              -------------------------
during its Original Term (or any extension thereof) upon the occurrence of any
of the following events:

              (i)   The Company's determination in good faith that it is
terminating Employee for Cause (as defined in Section 6 below) ("Termination for
                                                                 --------------
Cause");
- ------

              (ii)  The Company's determination that it is terminating Employee
without Cause, which determination may be made by the Company at any time at the
Company's sole discretion, for any or no reason ("Termination Without Cause");
                                                  -------------------------

              (iii) The effective date of a written notice sent to the Company
from Employee stating that Employee is electing to terminate his or her
employment with the Company ("Voluntary Termination"); or
                              ---------------------

                                      -5-
<PAGE>

          (iv)   Following Employee's death or Disability (as defined in Section
7 below).

     (b)  Severance Benefits.  Employee shall be entitled to receive
          ------------------
severance benefits upon termination of employment only as set forth in this
Section 5(b):

          (i)    Voluntary Termination.  If Employee's employment terminates by
                 ---------------------
Voluntary Termination, then Employee shall not be entitled to receive payment of
any severance benefits.  Employee will receive payment(s) for all salary and
unpaid vacation accrued as of the date of Employee's termination of employment
and Employee's benefits will be continued under the Company's then existing
benefit plans and policies in accordance with such plans and policies in effect
on the date of termination and in accordance with applicable law.

          (ii)   Involuntary Termination.  If Employee's employment is
                 -----------------------
terminated under Section 5(a)(ii) (such termination, an "Involuntary
                                                         -----------
Termination"), Employee will be entitled to receive payment of severance
- -----------
benefits equal to Employee's regular monthly salary for the lesser of (i) six
(6) months or (ii) until Employee finds full-time employment, part-time
employment, or some combination thereof pursuant to which Employee works or is
paid for an equivalent of at least 30 hours per week (the "Severance Period").
                                                           ----------------
Such payments shall be made ratably over the Severance Period according to the
Company's standard payroll schedule. Irrespective of when payment of such bonus
is due, Employee will also be entitled to receive payment on the date of
termination of any bonus earned as of such date of termination under Section
4(c). Health insurance benefits with the same coverage provided to Employee
prior to the termination (e.g. medical, dental, optical, mental health) and in
all other respects significantly comparable to those in place immediately prior
to the termination will be provided at the Company's cost over the Severance
Period. Any unvested stock options or shares of restricted stock held by
Employee as of the date of Employee's termination of employment shall continue
to vest through the end of the Severance Period according to the vesting
schedule set forth in any agreement between Employee and the Company governing
the issuance to Employee of such securities.

          (iii)  Termination for Cause.  If Employee's employment is
                 ---------------------
terminated for Cause, then Employee shall not be entitled to receive payment of
any severance benefits.  Employee will receive payment(s) for all salary and
unpaid vacation accrued as of the date of Employee's termination of employment
and Employee's benefits will be continued under the Company's then existing
benefit plans and policies in accordance with such plans and policies in effect
on the date of termination and in accordance with applicable law.

          (iv)   Termination by Reason of Death or Disability.  In the event
                 --------------------------------------------
that Employee's employment with the Company terminates as a result of Employee's
death or Disability (as defined in Section 7 below), Employee or Employee's
estate or representative will receive all salary and unpaid vacation accrued as
of the date of Employee's death or Disability and any other benefits payable
under the Company's then existing benefit plans and policies in accordance with
such plans and policies in effect on the date of death or Disability and in
accordance with applicable law. In addition, Employee's estate or representative
will receive the

                                      -6-
<PAGE>

amount of Employee's target bonus for the fiscal year in which the death or
Disability occurs to the extent that the bonus has been earned as of the date of
Employee's death or Disability, as determined by the Board of Directors or its
Compensation Committee based on the specific corporate and individual
performance targets established for such fiscal year.

     6.   Definition of Cause.  For purposes of this Agreement, "Cause" for
          -------------------                                    -----
Employee's termination will exist at any time after the happening of one or more
of the following events:

          (a)  Employee's willful misconduct or gross negligence in performance
of his or her duties hereunder, including Employee's refusal to comply in any
material respect with the legal directives of the Company's Board of Directors
so long as such directives are not inconsistent with the Employee's position and
duties, and such refusal to comply is not remedied within 10 working days after
written notice from the Company, which written notice shall state that failure
to remedy such conduct may result in Termination for Cause;

          (b)  Dishonest or fraudulent conduct, a deliberate attempt to do an
injury to the Company, or conduct that materially discredits the Company or is
materially detrimental to the reputation of the Company, including conviction of
a felony; or

          (c)  Employee's incurable material breach of any element of the
Company's Confidential Information and Invention Assignment Agreement (as
defined below), including without limitation, Employee's theft or other
misappropriation of the Company's proprietary information.

     7.   Definition of Disability.  For purposes of this Agreement,
          ------------------------
"Disability" shall mean that Employee has been unable to perform his or her
 ----------
duties hereunder as the result of his or her incapacity due to physical or
mental illness, and such inability, which continues for at least 120 consecutive
calendar days or 150 calendar days during any consecutive twelve-month period,
if shorter, after its commencement, is determined to be total and permanent by a
physician selected by the Company and its insurers and acceptable to Employee or
to Employee's legal representative (with such agreement on acceptability not to
be unreasonably withheld).

     8.   Confidentiality Agreement.  Employee shall sign, or has signed, a
          -------------------------
Proprietary Information and Invention Assignment Agreement (the "Confidentiality
                                                                 ---------------
Agreement") substantially in the form attached hereto as Exhibit A.  Employee
- ---------                                                ---------
hereby represents and warrants to the Company that he or she has complied with
all obligations under the Confidentiality Agreement and agrees to continue to
abide by the terms of the Confidentiality Agreement and further agrees that the
provisions of the Confidentiality Agreement shall survive any termination of
this Agreement or of Employee's employment relationship with the Company.

     9.   Noncompetition Covenant.  Employee hereby agrees that he shall not,
          -----------------------
during the term of his employment pursuant to this Agreement and for a period of
one (1) year after his or her employment ceases, do any of the following without
the prior written consent of the Company's Board of Directors:

                                      -7-
<PAGE>

          (a)  Compete.  Carry on any business or activity (whether directly or
               -------
indirectly, as a partner, stockholder, principal, agent, director, affiliate,
employee or consultant) relating to handheld devices for the medical industry,
EMR products or any current or currently planned products of Data Critical
Corporation or Physix, Inc. that is competitive with the business conducted by
the Company (as conducted now or during the term of Employee's employment), nor
engage in any other activities that conflict with Employee's obligations to the
Company, nor enter into any relationship with any third party that proposes or
has proposed to acquire any of the assets or capital stock of Physix, Inc.
within the last 18 months, including but not limited to Dr.Koop.com, Inc.,
McKesson HBOC and Physicians Online, Inc.

          (b)  Solicit Business.  Solicit or influence or attempt to influence
               ----------------
any client, customer or other person either directly or indirectly, to direct
his or its purchase of the Company's products and/or services to any person,
firm, corporation, institution or other entity in competition with the business
of the Company.

          (c)  Solicit Personnel.  Solicit or influence or attempt to influence
               -----------------
any person employed by the Company to terminate or otherwise cease his
employment with the Company or become an employee of any competitor of the
Company.  This Section 9(c) is to be read in conjunction with Section 6 of the
Confidential Information and Invention Assignment Agreement executed by
Employee.

     10.  Limitation on Stock Option Acceleration Benefits.  In the event that
          ------------------------------------------------
any stock option acceleration benefits provided for in this Agreement to
Employee (i) constitute "parachute payments" within the meaning of Section 280G
of the Internal Revenue Code of 1986, as amended (the "Code") and (ii) but for
                                                       ----
this Section 10, would be subject to the excise tax imposed by Section 4999 of
the Code, then Employee's acceleration benefits under Section 4(b) shall be
payable either:

          (a)  in full, or

          (b)  as to such lesser amount which would result in no portion of such
benefits being subject to excise tax under Section 4999 of the Code,

whichever of the foregoing amounts, taking into account the applicable federal,
state and local income taxes and the excise tax imposed by Section 4999, results
in the receipt by Employee on an after-tax basis, of the greatest amount of
benefits under Section 4(b), notwithstanding that all or some portion of such
benefits may be taxable under Section 4999 of the Code.  Unless the Company or
Employee otherwise agree in writing, any determination required under this
Section 13 shall be made in writing by independent public accountants appointed
by Employee and reasonably acceptable to the Company (the "Accountants"), whose
                                                           -----------
determination shall be conclusive and binding upon Employee and the Company for
all purposes.  For purposes of making the calculations required by this Section
10, the Accountants may make reasonable assumptions and approximations
concerning applicable taxes and may rely on reasonable, good faith
interpretations concerning the application of Sections 280G and 4999 of the
Code.  The Company and Employee shall furnish to the Accountants such
information and documents as the Accountants may reasonably request in order to
make a determination under this Section 10.  The

                                      -8-
<PAGE>

Company shall bear all costs the Accountants may reasonably incur in connection
with any calculations contemplated by this Section 10.


     11.  Conflicts.  Employee represents that his or her performance of all the
          ---------
terms of this Agreement will not breach any other agreement to which Employee is
a party.  Employee has not, and will not during the term of this Agreement,
enter into any oral or written agreement in conflict with any of the provisions
of this Agreement.  Employee further represents that he or she is entering into
or has entered into an employment relationship with the Company of his or her
own free will and that he or she has not been solicited as an employee in any
way by the Company.

     12.  Miscellaneous Provisions.
          ------------------------

          (a)  No Duty to Mitigate.  Employee shall not be required to mitigate
               -------------------
the amount of any payment contemplated by this Agreement (whether by seeking new
employment or in any other manner), nor, except as otherwise provided in this
Agreement, shall any such payment be reduced by any earnings that Employee may
receive from any other source.

          (b)  Amendments and Waivers. Any term of this Agreement may be amended
               ----------------------
or waived only with the written consent of the parties.

          (c)  Sole Agreement.  This Agreement, including any Exhibits hereto,
               --------------
constitutes the sole agreement of the parties and supersedes all oral
negotiations and prior writings with respect to the subject matter hereof.

          (d)  Notices. Any notice required or permitted by this Agreement shall
               -------
be in writing and shall be deemed sufficient upon receipt, when delivered
personally or by a nationally-recognized delivery service (such as Federal
Express or UPS), or 48 hours after being deposited in the U.S. mail as certified
or registered mail with postage prepaid, if such notice is addressed to the
party to be notified at such party's address as set forth below or as
subsequently modified by written notice.

          (e)  Choice of Law.  The validity, interpretation, construction and
               -------------
performance of this Agreement shall be governed by the laws of the State of
Washington, without giving effect to the principles of conflict of laws.

          (f)  Severability.  If one or more provisions of this Agreement are
               ------------
held to be unenforceable under applicable law, the parties agree to renegotiate
such provision in good faith.  In the event that the parties cannot reach a
mutually agreeable and enforceable replacement for such provision, then (i) such
provision shall be excluded from this Agreement, (ii) the balance of the
Agreement shall be interpreted as if such provision were so excluded and (iii)
the balance of the Agreement shall be enforceable in accordance with its terms.

          (g)  Counterparts.  This Agreement may be executed in counterparts,
               ------------
each of which shall be deemed an original, but all of which together will
constitute one and the same instrument.

                                      -9-
<PAGE>

          (h)  Arbitration. Any dispute or claim arising out of or in connection
               -----------
with this Agreement will be finally settled by binding arbitration in Seattle,
Washington in accordance with the rules of the American Arbitration Association
by one arbitrator appointed in accordance with said rules. The arbitrator shall
apply Washington law, without reference to rules of conflicts of law or rules of
statutory arbitration, to the resolution of any dispute. Judgment on the award
rendered by the arbitrator may be entered in any court having jurisdiction
thereof. Notwithstanding the foregoing, the parties may apply to any court of
competent jurisdiction for preliminary or interim equitable relief, or to compel
arbitration in accordance with this paragraph, without breach of this
arbitration provision. This Section 12(h) shall not apply to the
Confidentiality Agreement.

          (i)  Advice of Counsel.  EACH PARTY TO THIS AGREEMENT ACKNOWLEDGES
               -----------------
THAT, IN EXECUTING THIS AGREEMENT, SUCH PARTY HAS HAD THE OPPORTUNITY TO SEEK
THE ADVICE OF INDEPENDENT LEGAL COUNSEL, AND HAS READ AND UNDERSTOOD ALL OF THE
TERMS AND PROVISIONS OF THIS AGREEMENT.  THIS AGREEMENT SHALL NOT BE CONSTRUED
AGAINST ANY PARTY BY REASON OF THE DRAFTING OR PREPARATION HEREOF.

                            [Signature Page Follows]

                                      -10-
<PAGE>

  The parties have executed this Agreement the date first written above.


                                    DATA CRITICAL CORPORATION


                                    By:  /s/ Jeffrey S. Brown
                                       --------------------------------

                                    Title:  President/CEO
                                          -----------------------------

                                    Address:  19820 North Creek Parkway
                                              Suite 100
                                              Bothell, WA 98011


                                    THOMAS GIANNULLI


                                    Signature:  /s/ Tom Giannulli
                                              -------------------------

                                    Address:  2701 Westgate
                                              Houston, TX 77098

                                      -11-

<PAGE>

PRESS RELEASE DATED DECEMBER 9, 1999


                                 EXHIBIT 20.1

FOR IMMEDIATE RELEASE

Data Critical Corporation to Acquire Physix, Inc.

BOTHELL, Wash., Dec. 9 /PRNewswire/ -- Data Critical Corporation (Nasdaq: DCCA)
                                                                          ----
announced it has entered into a definitive agreement to acquire the assets of
privately held Texas-based Physix, Inc., a leading provider of mobile, automated
workflow tools for physicians and caregivers. The acquisition is expected to
close during the month of December. Terms of the transaction were not disclosed.
(Photo: Logo)
        ----

"The acquisition of Physix is a significant step toward Data Critical's vision
of wireless and Internet-delivered information access from multiple sites, such
as hospitals, homes and caregiver offices.  This Data Critical solution saves
money and time for hospitals and caregivers, while, at the same time, improving
patient care," said Jeffrey S. Brown, president and chief executive officer of
Data Critical Corporation.

Physix's technology is complementary to that of Data Critical's communication
products, such as StatView(TM), AlarmView(TM) and Mobileview(TM). The
acquisition will enable Data Critical to extend the reach, as well as the
breadth of its products and data services to caregivers, while providing a near-
term return on investment.  The Registrant plans to combine its wireless
technology with Physix workflow applications to create an Internet-based
application that can further improve productivity and reduce caregiver expenses.
Data Critical expects to introduce an Internet product based on Physix's
technology by mid-2000.

Brown said the Data Critical solution specifically addresses a need cited by the
Institute of Medicine (IOM) of the National Academies. In a report issued this
week, the IOM stated that medical practitioners often do not have complete
medical information concerning medicines prescribed, or a patient's illnesses.
"We plan to create a wireless, Internet-powered tool that caregivers will use
every day to review, create and access all relevant patient information,
including real-time physiological data," said Brown.

As part of the acquisition, Thomas Giannulli, M.D., M.S. Engineering, the chief
executive officer and president of Physix, will join Data Critical Corporation
as vice president of advanced research. A doctor of Internal Medicine, Giannulli
founded Physix in 1994 to design, manufacture and support the Registrant's first
handheld electronic medical record system. In addition, Sylvia Roma, vice
president of client services and product planning for Physix will become vice
president, client services of Data Critical. Ms. Roma has more than 21 years of
client service, product management and product planning experience in the
healthcare information technology industry. She has held executive level
positions at Shared Medical Systems and Phamis, where she was vice president of
client services.

Data Critical will conduct a conference call for investors to discuss the Physix
acquisition later today, Thursday, December 9, 1999, at 4:30 p.m. EST.
Information regarding the conference call is available at www.datacritical.com.
                                                          --------------------

- --------------------------------------------------------------------------------
<PAGE>

Data Critical Corporation designs, manufactures, markets, installs and supports
communication and information systems, using wireless technology and proprietary
software to allow access to health information, including patient vital signs
and other diagnostic data.

Other than historical information set forth herein, this announcement contains
forward-looking statements that involve risks and uncertainties, including the
effect of the Physix acquisition on Data Critical's business. Additional risks
association with Data Critical's business can be found in its recent
Registration Statement and other periodic filings with the SEC.

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

<PAGE>

PRESS RELEASE DATED DECEMBER 20, 1999


                                 EXHIBIT 20.2

FOR IMMEDIATE RELEASE

Data Critical Corporation Completes Acquisition of Physix, Inc.

BOTHELL, Wash, Dec. 20 /PRNewswire/ -- Data Critical Corporation (Nasdaq: DCCA)
                                                                          ----
announced it has completed its acquisition of substantially all the assets of
privately held Texas-based Physix, Inc., a leading provider of mobile, automated
workflow tools for physicians and caregivers.

Under the terms of the agreement, Data Critical has issued Physix, 100,000
shares of Data Critical common stock, with an additional 100,000 contingency
shares to be placed in escrow and to be released based upon the achievement of
certain performance milestones. If these performance milestones are not met
within one year, the number of shares to be released to Physix will be reduced
on a sliding scale, up to the total 100,000 contingency shares. Data Critical
also paid approximately $1.5 million in cash to repay certain Physix
liabilities. The transaction will be accounted for as a purchase.

Thomas Giannulli, M.D., M.S. Engineering, the chief executive officer and
president of Physix, joins Data Critical as vice president of advanced research.
Sylvia Roma, vice president of client services and product planning for Physix,
is now vice president, client services of Data Critical. The two are among
sixteen Physix employees who join Data Critical. The compensation of all
incoming Physix employees is subject to their achievement of the performance
milestones.

The Physix acquisition is consistent with Data Critical's objective to be a
leading provider of communications technology for the healthcare industry, using
wireless and Internet technology to deliver information access from multiple
sites, such as hospitals, homes and caregiver offices. ``We believe our systems
are important tools to help improve the overall healthcare experience,
especially limiting or eliminating information-based errors,'' said Jeffrey S.
Brown, president and chief executive officer of Data Critical.

The Registrant will combine its wireless technology with Physix workflow
applications to create an Internet-based application that can further improve
productivity, reduce caregiver expenses and improve patient care. Data Critical
expects to introduce an Internet product based on Physix's technology by mid-
2000.

Data Critical Corporation designs, manufactures, markets, installs and supports
communication and information systems, using wireless internet technology and
proprietary software to allow access to health information, including patient
vital signs and other diagnostic data. Additional information concerning Data
Critical is available at www.datacritical.com.
                         --------------------

Except for the historical information presented, the matters discussed in this
press release are forward-looking statements that are subject to risks and
uncertainties that could cause actual results to differ materially from any
future results, performance or achievements expressed or implied by such
statements. Such risks and uncertainties include the effect of the Physix
acquisition on Data Critical's business; industry adoption of Data Critical's
systems; lack of

- --------------------------------------------------------------------------------
<PAGE>

profitability; dependence on strategic partners; increasing expenses relating to
marketing, development and operations; and other risks described in Data
Critical's periodic filings with the SEC, including its registration statement
on Form S-1 that was declared effective on November 8, 1999. Copies of Data
Critical's public disclosure filings with the SEC are available from its
investor relations department.

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


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