Document:

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                                                                 Exhibit 10.54

                          LIONBRIDGE TECHNOLOGIES, INC.

                              HT ACQUISITION CORP.

                           HARVARD TRANSLATIONS, INC.

                      AGREEMENT AND PLAN OF REORGANIZATION

                           Dated as of March 30, 2000

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                                TABLE OF CONTENTS

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ARTICLE I.  THE MERGER...............................................................................................1

1.1    The Merger....................................................................................................1
1.2    Effects of the Merger.........................................................................................1
1.3    Closing.......................................................................................................2
1.4    Approval by the Stockholder of HT.............................................................................2

ARTICLE II.  CONVERSION AND EXCHANGE OF SHARES; DISSENTING SHARES....................................................2

2.1    Conversion of Shares of HT Common Stock.......................................................................2
2.2    Escrow Shares.................................................................................................3
2.3    Dissenting Shares.............................................................................................4
2.4    Delivery of Evidence of Ownership.............................................................................4
2.5    No Further Ownership Rights in HT Common Stock................................................................5
2.6    No Fractional Shares..........................................................................................5
2.7    Assumption of Stock Options...................................................................................5
2.8    Notes.........................................................................................................6

ARTICLE III.  REPRESENTATIONS AND WARRANTIES OF HT AND THE STOCKHOLDER...............................................6

3.1    Organization, Standing and Power; Subsidiaries................................................................6
3.2    Capital Structure.............................................................................................7
3.3    Authority.....................................................................................................8
3.4    Compliance with Laws and Other Instruments; Non-Contravention.................................................8
3.5    Technology and Intellectual Property Rights...................................................................9
3.6    Financial Statements; Business Information...................................................................11
3.7    Taxes........................................................................................................12
3.8    Absence of Certain Changes and Events........................................................................13
3.9    Leases in Effect.............................................................................................15
3.10   Personal Property; Real Estate...............................................................................15
3.11   Certain Transactions.........................................................................................16
3.12   Litigation and Other Proceedings.............................................................................16
3.13   No Defaults..................................................................................................16
3.14   Major Contracts..............................................................................................16
3.15   Material Reductions..........................................................................................18
3.16   Insurance and Banking Facilities.............................................................................18
3.17   Employees....................................................................................................18
3.18   Employee Benefit Plans.......................................................................................19
3.19   Certain Agreements...........................................................................................19
3.20   Guarantees and Suretyships...................................................................................20
3.21   Brokers and Finders..........................................................................................20
3.22   Certain Payments.............................................................................................20
3.23   Environmental Matters........................................................................................20
3.24   Enforceability of Contracts, etc.............................................................................20
3.25   Accounting Matters...........................................................................................21
3.26   Year 2000....................................................................................................21
3.27   Disclosure...................................................................................................21
3.28   Reliance.....................................................................................................21

ARTICLE IV.  REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER......................................................21

ARTICLE V.  REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB.................................................22

5.1    Organization and Qualification...............................................................................22

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5.2    Capitalization...............................................................................................23
5.3    Authority Relative to this Agreement.........................................................................23
5.4    Non-Contravention............................................................................................23
5.5    (a)  SEC Documents; Financial Statements.....................................................................24
5.6    Validity of Parent Merger Shares.............................................................................24
5.7    Consents and Approvals of Governmental Authorities...........................................................24
5.8    Absence of Certain Changes or Events.........................................................................24
5.9    Disclosure...................................................................................................24
5.10   Reliance.....................................................................................................25

ARTICLE VI.  COVENANTS OF HT AND STOCKHOLDER........................................................................25

6.1    Conduct of Business in Ordinary Course.......................................................................25
6.2    Dividends, Issuance of, or Changes in Securities.............................................................27
6.3    Governing Documents..........................................................................................27
6.4    No Acquisitions..............................................................................................27
6.5    No Dispositions..............................................................................................27
6.6    Indebtedness.................................................................................................27
6.7    Compensation.................................................................................................27
6.8    Claims.......................................................................................................27
6.9    Access to Properties and Records.............................................................................27
6.10   Breach of Representations and Warranties.....................................................................28
6.11   Consents.....................................................................................................28
6.12   Tax Returns..................................................................................................28
6.13   Stockholder Approval.........................................................................................28
6.14   Exclusivity; Acquisition Proposals...........................................................................28
6.15   Notice of Events.............................................................................................29
6.17   Reasonable Best Efforts......................................................................................29
6.18   Insurance....................................................................................................29

ARTICLE VII.  COVENANTS OF PARENT...................................................................................29

7.1    Breach of Representations and Warranties.....................................................................29
7.2    Additional Information; Access...............................................................................29
7.3    Consents.....................................................................................................29
7.4    Reasonable Best Efforts:  Reorganization.....................................................................30
7.5    Officers and Directors.......................................................................................30
7.6    Nasdaq National Market Listing...............................................................................30
7.7    Notice of Events.............................................................................................30
7.8    Third Party Beneficiaries....................................................................................30

ARTICLE VIII.  ADDITIONAL AGREEMENTS................................................................................30

8.1    Investment Agreements........................................................................................30
8.2    Legal Conditions to the Merger...............................................................................31
8.3    Employee Benefits............................................................................................31
8.4    Expenses.....................................................................................................31
8.5    Additional Agreements........................................................................................31
8.6    Public Announcements.........................................................................................32
8.7    Confidentiality..............................................................................................32
8.8    Pooling......................................................................................................32
8.9    Hart-Scott-Rodino Filing.....................................................................................33
8.10   Tax Matters..................................................................................................33
8.11   Employment, Consulting and Noncompetition Agreements........................................................34

ARTICLE IX.  CONDITIONS PRECEDENT...................................................................................34

9.1    Conditions to Each Party's Obligation to Effect the Merger...................................................34
9.2    Conditions of Obligations of Parent and Merger Sub...........................................................35

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9.3    Conditions of Obligation of HT...............................................................................36

ARTICLE X.  INDEMNIFICATION.........................................................................................37

10.1   Indemnification Relating to Agreement........................................................................37
10.2   Third Party Claims...........................................................................................38
10.4   Limitations..................................................................................................39
10.5   Binding Effect...............................................................................................39
10.6   Time Limit...................................................................................................39
10.8   Sole Remedy..................................................................................................39

ARTICLE XI.  TERMINATION............................................................................................40

11.1  Mutual Agreement..............................................................................................40
11.2  Termination by Parent.........................................................................................40
11.3  Termination by HT.............................................................................................40
11.4  Outside Date..................................................................................................40
11.5  Effect of Termination.........................................................................................40

ARTICLE XII.  MISCELLANEOUS.........................................................................................41

12.1  Entire Agreement..............................................................................................41
12.2  Governing Law; Consent to Jurisdiction........................................................................41
12.3  Notices.......................................................................................................41
12.4  Severability..................................................................................................42
12.5  Survival of Representations and Warranties....................................................................42
12.6  Assignment....................................................................................................42
12.7  Counterparts..................................................................................................43
12.8  Amendment.....................................................................................................43
12.9  Extension, Waiver.............................................................................................43
12.10 Interpretation................................................................................................43
12.11 Knowledge.....................................................................................................43
12.12 Transfer, Sales, Documentary, Stamp and Other Similar Taxes...................................................43

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EXHIBITS

EXHIBIT 1.1   --   Merger Documents
EXHIBIT 2.2   --   Escrow Agreement, Letter of Transmittal
EXHIBIT 8.1   --   Investment Agreement
EXHIBIT 8.2   --   Registration Rights Agreement
EXHIBIT 8.8   --   HT Affiliate Agreement
EXHIBIT 8.12  --   Lease Agreement
EXHIBIT 9.2   --   Opinion of Foley, Hoag & Eliot, LLP
EXHIBIT 9.3   --   Opinion of Testa, Hurwitz & Thibeault, LLP

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                      AGREEMENT AND PLAN OF REORGANIZATION

         AGREEMENT AND PLAN OF REORGANIZATION, dated as of March 30, 2000 (this
"AGREEMENT"), by and among LIONBRIDGE TECHNOLOGIES, INC., a Delaware corporation
("PARENT"); HT ACQUISITION CORP., a Massachusetts corporation and a wholly owned
subsidiary of Parent ("MERGER SUB"); HARVARD TRANSLATIONS, INC., a Massachusetts
corporation ("HT"); and Robert C. Sprung, the sole stockholder of HT (the
"STOCKHOLDER").

         Intending to be legally bound, and in consideration of the mutual
representations, warranties, covenants and agreements contained herein, Parent,
Merger Sub, HT and the Stockholder agree as follows:

                                    ARTICLE I

                                   THE MERGER

          1.1 THE MERGER. Subject to the terms and conditions hereof, and in
accordance with the Massachusetts Business Corporation Act (the "MBCL"), Merger
Sub will be merged with and into HT (the "MERGER"). Articles of Merger and any
other required documents (collectively, the "MERGER DOCUMENTS"), substantially
in the form attached as EXHIBIT 1.1, will be duly prepared, executed and
acknowledged by HT and Merger Sub and thereafter delivered to the Secretary of
the Commonwealth of Massachusetts for filing in accordance with the MBCL
contemporaneously with the Closing (as defined in Section 1.3). The Merger will
become effective at such time as the Merger Documents have been filed with the
Secretary of the Commonwealth of Massachusetts (the "EFFECTIVE Time"). Following
the Merger, HT will continue as the surviving corporation of the Merger (the
"SURVIVING CORPORATION") under the laws of the Commonwealth of Massachusetts,
and the separate corporate existence of Merger Sub will cease.

         1.2 EFFECTS OF THE MERGER. At and after the Effective Time, (i) the
Merger will have all of the effects provided by the Articles of Merger and
applicable law, (ii) the Articles of Incorporation of HT will be amended in the
form attached as ARTICLE 3 OF EXHIBIT 1.1 until duly further amended, (iii) the
bylaws of Merger Sub will be the bylaws of the Surviving Corporation until duly
amended, (iv) the directors of Merger Sub will be the directors of the Surviving
Corporation, to hold office in accordance with the bylaws of the Surviving
Corporation, (v) the officers of Merger Sub will be the officers of the
Surviving Corporation, to hold office in accordance with the bylaws of the
Surviving Corporation and (vi) the issued and outstanding certificates for the
capital stock of Merger Sub will be the issued and outstanding certificates
initially representing all of the issued capital stock of the Surviving
Corporation. The Merger is intended to be a reorganization within the meaning of
Section 368(a) of the Internal Revenue Code of 1986, as amended (the "CODE"),
and this Agreement is intended to constitute a "plan of reorganization" within
the meaning of the regulations promulgated under Section 368 of the Code.

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         1.3 CLOSING. The closing of the transactions contemplated by this
Agreement (the "CLOSING") will take place seven (7) days following the Parent's
Annual Meeting of Stockholders (or any special meeting held in lieu of such
annual meeting) held in 2000, (the "CLOSING DATE") at the offices of Testa
Hurwitz & Thibeault, LLP, 125 High Street, Boston, Massachusetts, 02110, unless
another date or place is agreed to in writing by Parent and HT. If all of the
conditions set forth in Article IX hereof are determined to be satisfied (or
duly waived) at the Closing, concurrently with the Closing the parties hereto
will cause the Merger to be consummated by the filing of the Merger Documents
with the Secretary of the Commonwealth of Massachusetts. The Closing will be
deemed to have concluded at the Effective Time.

         1.4 APPROVAL BY THE STOCKHOLDERS OF HT. HT will take all action
necessary in accordance with applicable law, its Charter Documents (as defined
below) and any agreements to which it is a party necessary to solicit the
approval of this Agreement, the Merger and all of the transactions contemplated
hereby by means of a unanimous written consent of stockholder(s) in accordance
with the MBCL. HT represents and warrants that its Board of Directors has duly
(i) approved the Merger in accordance with the MBCL and (ii) resolved to
recommend to the stockholder(s) of HT that they approve this Agreement, the
Merger and all of the transactions contemplated hereby.

                                   ARTICLE II

              CONVERSION AND EXCHANGE OF SHARES; DISSENTING SHARES

         2.1 CONVERSION OF SHARES OF HT COMMON STOCK.

                  (a) Subject, without limitation, to the provisions of Section
2.3 hereof, at the Effective Time, all of the shares of common stock, $.01 par
value, of HT ("HT COMMON STOCK") issued and outstanding immediately prior to the
Effective Time (excluding any HT Common Stock held by Parent or Merger Sub or
any other subsidiary of Parent, or by HT or any subsidiary of HT, which shares
("EXCLUDED SHARES") will be automatically canceled in the Merger without payment
of any consideration therefor, and excluding Dissenting Shares (as defined in
Section 2.3 hereof)), will automatically, by virtue of the Merger and without
any action on the part of the holder thereof, be converted into shares of common
stock, $.01 par value per share, of Parent ("PARENT COMMON STOCK") in accordance
with Section 2.1(c), and cash (rounded down to the nearest whole cent) in lieu
of fractional shares, if any, pursuant to Section 2.6 below. Shares of HT Common
Stock that are actually issued and outstanding immediately prior to the
Effective Time (including shares issued upon the exercise of stock options prior
to the Effective Time), excluding the Excluded Shares, are sometimes referred to
herein as the "OUTSTANDING HT SHARES." All options to acquire HT Common Stock
that are outstanding immediately prior to the Effective Time and do not expire
pursuant to their terms on or before the Closing (each of which is specifically
identified in Section 3.2 of the HT Disclosure Schedule (as defined below) are
sometimes referred to herein as the "OUTSTANDING HT OPTIONS."

                  (b) The aggregate number of shares of Parent Common Stock to
be issued in exchange for the acquisition of all Outstanding HT Shares will be
equal to the Modified Base Amount. Such shares are herein referred to as the
"PARENT STOCK MERGER SHARES".

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         The following definitions will be used in making the foregoing
calculation:

         "BASE AMOUNT" will equal the sum of (i) $4,700,000 and (ii) the Option
Proceeds (as defined below) DIVIDED BY the Parent Average Closing Price.

         "OPTION PROCEEDS" will mean any cash received by HT with respect to any
exercise of stock options after the date hereof and prior to the Closing.

         "PARENT AVERAGE CLOSING PRICE" will be equal to the average closing
price of the Parent Common Stock as publicly reported by the Wall Street Journal
over the ten Trading Days prior to the date of this Agreement, but excluding
within such period, the two highest and two lowest closing prices.

         "MODIFIED BASE AMOUNT" will mean the Base Amount LESS (i) the number of
Note Payment Shares (as defined in Section 2.8 below) and (ii) such number of
shares of Parent Common Stock having a value (as determined using the Parent
Average Closing Price) equal to any expenses to be borne by the Stockholder
pursuant to Section 8.4. The Parent Stock Merger Shares and the Note Payment
Shares are referred to collectively herein as the "PARENT MERGER SHARES".

         "TRADING DAY" will mean days on which closing prices for purchases and
sales of Parent Common Stock are reported by the Nasdaq National Market.

                  (c) The ratio at which one Outstanding HT Share will be
converted into shares of Parent Common Stock at the Effective Time is herein
called the "CONVERSION RATIO" and will be calculated as set forth in this
Section 2.1(c). Subject to Section 2.3, at the Effective Time, each Outstanding
HT Share will be converted into the right to receive that number (which may be a
fraction) of shares of Parent Common Stock that equals the quotient obtained by
DIVIDING the number of Parent Stock Merger Shares by the number of Outstanding
HT Shares. The holder of Outstanding HT Shares will be entitled to receive that
aggregate number of shares of Parent Common Stock equal to the Conversion Ratio
multiplied by the number of Outstanding HT Shares held by such holder
immediately prior to the Effective Time, subject to Section 2.3 herein.

                  (d) At the Effective Time, each share of common stock, $.01
par value, of Merger Sub issued and outstanding immediately prior to the
Effective Time will, by virtue of the Merger and without any action on the part
of the holder hereof, be converted into one share of common stock, $.01 par
value, of the Surviving Corporation.

         2.2 ESCROW SHARES. Ten percent (10%) of the Parent Merger Shares,
rounded up to the nearest whole share (the "ESCROW SHARES") will be deposited
and held in escrow (the "Escrow") in accordance with the Escrow Agreement
attached as EXHIBIT 2.2 (the "ESCROW AGREEMENT") as the sole source of
indemnification payments that may become due to Parent pursuant to Article X
(except with respect to breaches of Section 3.2 and Article IV(a) and (b); and
as otherwise limited by Section 8.10) provided that the aggregate liability of
any single stockholder for indemnification obligations pursuant to Article X of
this Agreement shall be equal to a dollar amount equal to the Parent Average
Closing Price multiplied by the aggregate number of Escrow Shares deposited in
escrow by or on behalf of such stockholder; and provided, further, that each HT
stockholder shall be jointly and severally liable beyond such holder's allocable
portion of the Escrow Shares solely in respect of any breach by such

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stockholder of any representation or warranty contained in a Letter of
Transmittal (as defined in Section 2.4 below) delivered by such stockholder. The
Escrow Shares will be withheld on a pro rata basis among the holders of the
Outstanding HT Shares based on the number of Parent Merger Shares issuable at
the closing to such holders. The exact number of Escrow Shares held for the
account of each HT stockholder will be determined at the Closing by the
agreement in writing of Parent and HT. The delivery of the Escrow Shares will be
made on behalf of the holders of the Outstanding HT Shares in accordance with
the provisions hereof, with the same force and effect as if such shares had been
delivered by Parent directly to such holders and subsequently delivered by such
holders to the Escrow Agent. The adoption of this Agreement by the stockholders
of HT will also constitute their approval of the terms and provisions of the
Escrow Agreement, including, without limitation, the appointment of the
Stockholder as the Indemnification Representative (as defined in the Escrow
Agreement), which is an integral term of the Merger.

         2.3 DISSENTING SHARES. Any holder of shares of HT Common Stock that are
outstanding on the record date for the determination of which holders will be
entitled to vote for or against the Merger who did not vote such shares in favor
of the Merger or sign and deliver a written consent thereto with respect to such
shares (the shares of HT Common Stock then outstanding that are not thus voted
or as to which such consents are not signed and delivered are referred to as
"DISSENTING SHARES") will be entitled to exercise dissenters' rights pursuant to
Chapter 156B, Section 76 of the MBCL with respect to such Dissenting Shares
PROVIDED THAT such holder meets all of the requirements of the MBCL with respect
to such Dissenting Shares, and will not be entitled to receive Parent Merger
Shares, unless otherwise provided by the MBCL or agreed in writing by Parent. HT
will, after consultation with Parent, give such notices with respect to
dissenters' rights as may be required by the MBCL as soon as practicable.

         2.4 DELIVERY OF EVIDENCE OF OWNERSHIP. Prior to the Closing, Parent
shall send a notice and transmittal form in substantially the form of EXHIBIT
2.4 hereto (individually, a "Letter of Transmittal" and collectively, the
"LETTERS OF TRANSMITTAL") to each holder of a certificate or other documentation
representing Outstanding HT Shares, other than Dissenting Shares, each holder of
a certificate or other documentation representing Outstanding HT Shares, other
than Dissenting Shares, will surrender such certificates or other documentation
to Parent or its designee, and, if not previously delivered, (i) a duly executed
counterpart of the Escrow Agreement, (ii) a duly executed Letter of Transmittal,
(iii) a duly executed Investment Agreement and (iv) such other duly executed
documentation as may be reasonably required by Parent to effect a transfer of
such shares, and upon such surrender and after the Effective Time each such
holder will be entitled to receive promptly from Parent or its transfer agent
certificates registered in the name of such holder representing the applicable
number of Parent Merger Shares, and the cash (calculated pursuant to Section
2.6, which will be paid by check), to which such holder is entitled pursuant to
the provisions of this Agreement, with a portion of such shares to be deposited
in escrow pursuant to the Escrow Agreement, as provided in Section 2.2. The
adoption of this Agreement by stockholders of HT will also constitute their
approval of the terms and provisions of the Letter of Transmittal. In the event
any certificates or instruments representing Outstanding HT Shares or
Outstanding HT Options shall have been lost, stolen or destroyed, upon the
making and delivery of an affidavit of that fact by the person claiming same to
have been lost, stolen or destroyed and the posting by such person of a bonding
such reasonable amount as Parent may direct as indemnity against any claim that
would be made against Parent with respect to such certificate or instrument,
Parent will issue in exchange for such lost, stolen or destroyed certificate or
instrument the Parent Merger Shares and cash deliverable in respect thereof
pursuant to this Agreement.

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         2.5 NO FURTHER OWNERSHIP RIGHTS IN HT COMMON STOCK. The Merger and its
approval by the stockholders of HT and the execution of this Agreement will be
deemed, at the Effective Time, to constitute full satisfaction and termination
of all rights and agreements pertaining to HT Common Stock pursuant to the MBCL,
by contract or otherwise. After the Effective Time, there will be no transfers
on the stock transfer books of HT of HT Common Stock or exercises of any
options, warrants or other rights to acquire HT Common Stock. Prior to or upon
Closing, HT will cause all rights to purchase or acquire HT Common Stock, other
than the Outstanding HT Options assumed pursuant to Section 2.7 below, to be
exercised or canceled. Until surrendered to Parent, each certificate for HT
Common Stock will, after the Effective Time, represent only the right to receive
shares of Parent Common Stock and the right to receive cash into which the
shares of HT Common Stock formerly represented thereby will have been converted
pursuant to this Agreement. Any dividends or other distribution declared after
the Effective Time with respect to Parent Common Stock will be paid to the
holder of any certificate for shares of HT Common Stock when the holder thereof
is entitled to receive a certificate for such holder's Parent Merger Shares in
accordance with this Agreement.

         2.6 NO FRACTIONAL SHARES. No certificates or scrip for fractional
shares of Parent Common Stock will be issued, no Parent stock split or dividend
will be paid in respect of any fractional share interest, and no such fractional
share interest will entitle the owner thereof to vote or to any rights of or as
a stockholder of Parent. In lieu of such fractional shares, any holder of
Outstanding HT Shares who would otherwise be entitled to a fraction of a share
of Parent Common Stock (after aggregating all fractional shares of Parent Common
Stock to be received by such holder) will be paid the cash value of such
fraction, which will be equal to such fraction MULTIPLIED BY the Parent Average
Closing Price.

         2.7 ASSUMPTION OF STOCK OPTIONS. At the Effective Time, Parent shall
assume each Outstanding HT Option and each holder thereof (each an "OPTION
HOLDER") shall thereby be entitled to acquire, by virtue of the Merger and
without any action on the part of the Option Holder, on substantially the same
terms (including the dates and extent of exercisability) and subject to the same
conditions, including vesting, as such Outstanding HT Option, the number of
shares of Parent Common Stock determined by MULTIPLYING the number of shares of
HT Common Stock for which such Outstanding HT Option is then exercisable in
accordance with its terms immediately prior to the Effective Time by the
Conversion Ratio (rounded down to the nearest whole share), at an exercise or
conversion price per share of Parent Common Stock (rounded up to the nearest
whole cent) determined by DIVIDING the exercise price per share of HT Common
Stock of such Outstanding HT Option immediately prior to the Effective Time by
the Conversion Ratio.

         2.8 NOTES. The $202,844.00 obligation of HT, and any interest accrued
thereon (the "HT NOTE") shall be paid in full and cancelled by delivery of the
Note Payment Shares to the Stockholder. "NOTE PAYMENT SHARES" shall mean a
number of shares of Parent Common Stock determined by dividing $202,844.00 plus
any interest accrued on the HT Note as of the Closing by the Parent Average
Closing Price. In lieu of any fractional shares, the holder of the HT Note who
would otherwise be entitled to a fraction of a share of Parent Common Stock
(after aggregating all fractional shares of Parent Common Stock to be received
by such holder) will be paid the cash value of such fraction (rounded down to
the nearest whole cent), which will be equal to such fraction MULTIPLIED BY the
Parent Average Closing Price.

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                                   ARTICLE III

                      REPRESENTATIONS AND WARRANTIES OF HT
                               AND THE STOCKHOLDER

         Except as set forth in the disclosure schedule of HT dated as of the
date hereof and delivered herewith to Parent (the "HT DISCLOSURE SCHEDULE")
which identifies the section and subsection to which each disclosure therein
relates (PROVIDED, HOWEVER, that HT will be deemed to have adequately disclosed
with respect to any section or subsection any matters that are clearly described
elsewhere in such document if the applicability of such disclosure to such
non-referenced sections or subsections is reasonably apparent and HT has not
intentionally omitted any required cross-references), and whether or not the HT
Disclosure Schedule is referred to in a specific section or subsection, HT and
the Stockholder jointly and severally represent and warrant to Parent and Merger
Sub as follows:

         3.1 ORGANIZATION, STANDING AND POWER; SUBSIDIARIES.

                   (a) HT is a corporation duly organized, validly existing and
in good standing under the laws of the Commonwealth of Massachusetts, has all
requisite corporate power and authority to own, lease and operate its properties
and to carry on its businesses as now being conducted, and is duly qualified and
in good standing to do business in each jurisdiction in which a failure to so
qualify would have a material adverse effect on the Business Condition (as
hereinafter defined) of HT.

                  As used in this Agreement, "BUSINESS CONDITION" with respect
to any Person (as defined below) means the business, financial condition,
results of operations, assets or prospects (as defined below) (without giving
effect to the consequences of the transactions contemplated by this Agreement,
and other than changes in general economic conditions) of such Person or Persons
including its Subsidiaries taken as a whole. In this Agreement, a "SUBSIDIARY"
of any Person means a corporation, partnership, limited liability company, joint
venture or other entity of which such Person directly or indirectly owns or
controls a majority of the equity interests or voting securities or other
interests that are sufficient to elect a majority of the Board of Directors or
other managers of such corporation, partnership, limited liability company,
joint venture or other entity, and "PROSPECTS" means events, conditions, facts
or developments existing on the date of this Agreement that are known to HT and
that in the reasonable course of events are expected to have an effect on future
operations of the business as presently conducted by HT, but will exclude (i)
the results of any changes that are made at the specific written direction of
Parent, that are specifically contemplated herein, or that directly result from
this transaction and (ii) any changes arising out of conditions affecting the
economy or industry of HT in general which does not affect HT in a materially
disproportionate manner relative to other participants in the economy or such
industry, respectively. References to HT in this Agreement shall be deemed to
include all Subsidiaries of HT, if any, unless the context specifically requires
otherwise. In this Agreement, "PERSON" means any natural person, corporation,
partnership, limited liability company, joint venture or other entity.

                  HT has delivered to Parent complete and correct copies of the
articles or certificate of incorporation, bylaws and/or other primary charter
and organizational documents ("CHARTER DOCUMENTS") of HT, in each case, as
amended to the date hereof. The minute books and stock records of HT, complete
and correct copies of which have been delivered to Parent, contain correct and

                                     - 6 -
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complete records of all material proceedings and actions taken at all meetings
of, or effected by written consent of, the stockholders of HT and its Board of
Directors, and all original issuances and subsequent transfers, repurchases and
cancellations of HT's capital stock. Section 3.1 of the HT Disclosure Schedule
contains a complete and correct list of the officers and directors of HT.

                  (b) HT has never owned, nor does it currently own, directly or
indirectly, any capital stock or other equity securities of any corporation or
have direct or indirect equity or ownership interest in any partnership, limited
liability company, joint venture or other entity. HT has no subsidiaries.

         3.2 CAPITAL STRUCTURE.

                  (a) The authorized capital stock of HT consists of 70,000
shares of HT Common Stock, of which 70,000 shares are issued and outstanding as
of the date of this Agreement and no shares are issued and held as treasury
shares by HT. The HT Disclosure Schedule sets forth all holders of HT Common
Stock and the number of shares owned. The HT Disclosure Schedule also sets forth
any options, warrants, calls, conversion rights, commitments, agreements,
contracts, understandings, restrictions, arrangements or rights of any character
(each, an "HT OPTION") to which HT is a party or by which HT may be bound
obligating HT to issue, deliver or sell, or cause to be issued, delivered or
sold, additional shares of the capital stock of HT, or obligating HT to grant,
extend, or enter into any such option, warrant, call, conversion right,
conversion payment, commitment, agreement, contract, understanding, restriction,
arrangement or right.

                  (b) All outstanding shares of HT Common Stock are, and any
shares of HT Common Stock issued upon exercise of any Outstanding HT Options
will be, validly issued, fully paid, nonassessable and not subject to any
preemptive rights (other than those which have been duly waived), or to any
agreement to which HT is a party or by which HT may be bound. HT does not have
outstanding any bonds, debentures, notes or other indebtedness the holders of
which (i) have the right to vote (or convertible or exercisable into securities
having the right to vote) with holders of shares of HT Common Stock on any
matter ("HT VOTING DEBT") or (ii) are or will become entitled to receive any
payment as a result of the execution of this Agreement or the completion of the
transactions contemplated hereby.

                  (c) Other than the HT Note, no other promissory notes have
been issued by HT.

         3.3 AUTHORITY. The execution, delivery and performance of this
Agreement and all other agreements contemplated hereby by HT have been duly
authorized by all necessary action of the Board of Directors of HT, and if the
Closing shall occur, shall have been duly authorized by all necessary action of
the stockholder of HT. Certified copies of the resolutions adopted by the Board
of Directors of HT and its stockholder(s) approving this Agreement, all other
agreements contemplated hereby and the Merger have been or will be provided to
Parent prior to the Closing. HT has duly and validly executed and delivered this
Agreement and has, or prior to Closing, will have duly and validly executed and
delivered all other agreements contemplated hereby, and each of this Agreement
and such other agreements constitutes a valid, binding and enforceable
obligation of HT in accordance with its terms.

         3.4 COMPLIANCE WITH LAWS AND OTHER INSTRUMENTS; NON-CONTRAVENTION. HT
holds, and at all times has held, all licenses, permits and authorizations from
all Governmental Entities (as defined

                                     - 7 -
<PAGE>

below) necessary for the lawful conduct of its business pursuant to all
applicable statutes, laws, ordinances, rules and regulations of all such
Governmental Entities having jurisdiction over it or any part of its operations,
excepting, however, when such failure to hold would not have a material adverse
effect on HT's Business Condition. There are no material violations or claimed
violations known by HT of any such license, permit or authorization or any such
statute, law, ordinance, rule or regulation. Assuming the receipt of all
Consents (as defined below), neither the execution, delivery or performance of
this Agreement and all other agreements contemplated hereby by HT and the
Stockholder, nor the consummation of the Merger or any other transaction
described herein, does or will, after the giving of notice, or the lapse of
time, or otherwise, conflict with, result in a breach of, or constitute a
default under, the Charter Documents of HT or any federal, foreign, state or
local court or administrative order or process, statute, law, ordinance, rule or
regulation, or any contract, agreement or commitment to which HT is a party, or
under which HT is obligated, or by which HT or any of the rights, properties or
assets of HT are subject or bound; result in the creation of any security
interests, liens, charges, restrictions, arrangements or rights of any character
("Liens") upon, or otherwise adversely affect, any of the rights, properties or
assets of HT; terminate, amend or modify, or give any party the right to
terminate, amend, modify, abandon or refuse to perform or comply with, any
contract, agreement or commitment to which HT is a party, or under which HT is
obligated, or by which HT or any of the rights, properties or assets of HT are
subject or bound; or accelerate, postpone or modify, or give any party the right
to accelerate, postpone or modify, the time within which, or the terms and
conditions under which, any liabilities, duties or obligations are to be
satisfied or performed, or any rights or benefits are to be received, under any
contract, agreement or commitment to which HT is a party, or under which HT may
be obligated, or by which HT or any of the rights, properties or assets of HT
are subject or bound. Section 3.4 of the HT Disclosure Schedule sets forth each
agreement, contract or other instrument binding upon HT requiring a notice or
consent (by its terms or as a result of any conflict or other contravention
required to be disclosed in the HT Disclosure Schedule pursuant to the preceding
provisions of this Section 3.4) as a result of the execution, delivery or
performance of this Agreement and all other agreements contemplated hereby by HT
and the Stockholder or the consummation of the Merger or any other transaction
described herein (each such notice or consent, a "CONSENT"). No consent,
approval, order, or authorization of or registration, declaration, or filing
with or exemption (also a "CONSENT") by, any court, administrative agency or
commission or other governmental authority or instrumentality, whether domestic
or foreign (each a "GOVERNMENTAL ENTITY") is required by or with respect to HT
in connection with the execution, delivery or performance of this Agreement and
all other agreements contemplated hereby by HT and the Stockholder or the
consummation of the Merger or any other transaction described herein, except for
the filing by HT and Merger Sub of the appropriate Merger Documents with the
Secretary of State of Massachusetts.

         3.5 TECHNOLOGY AND INTELLECTUAL PROPERTY RIGHTS.

                  (a) For the purposes of this Agreement, "HT INTELLECTUAL
PROPERTY" consists of the following intellectual property:

                  (i) all patents, trademarks, trade names, service marks, trade
         dress, copyrights and any renewal rights therefor, mask works,
         schematics, software, firmware, technology, manufacturing processes,
         supplier lists, customer lists, trade secrets, know-how, moral rights
         and applications and registrations for any of the foregoing;

                                     - 8 -
<PAGE>

                  (ii) all documents, records and files relating to design, end
         user documentation, manufacturing, quality control, sales, marketing or
         customer support for all intellectual property described herein;

                  (iii) all other tangible or intangible proprietary information
         and materials; and

                  (iv) all license and other rights in any third party product
         or any third party intellectual property described in (i) through (iii)
         above;

that are owned or held by or on behalf of HT or that are being, and/or have
been, used, or are currently under development for use, in the business of HT as
it has been, is currently or is currently planned to be conducted; PROVIDED,
HOWEVER, that HT Intellectual Property will not include any commercially
available third party software or related intellectual property.

                  (b) Section 3.5 of the HT Disclosure Schedule lists: (i) all
patents, copyright registrations, issued mask works, registered trademarks,
registered service marks, registered trade dress, any renewal rights for any of
the foregoing, and any applications and registrations for any of the foregoing,
that are included in HT Intellectual Property and owned by or on behalf of HT;
(ii) all hardware products and tools, software products and tools and services
that are currently published, offered, or under development by HT; and (iii) all
licenses, sublicenses and other agreements to which HT is a party and pursuant
to which HT or any other person is authorized to use any HT Intellectual
Property or exercise any other right with regard thereto. The disclosures
described in (iii) hereof include the identities of the parties to the relevant
agreements, a description of the nature and subject matter thereof, the term
thereof and the applicable royalty or summary of any formula or procedure for
determining such royalty.

                  (c) HT Intellectual Property consists solely of items and
rights that are either: (i) owned solely by HT; (ii) in the public domain; or
(iii) rightfully used and authorized for use by HT and its successors pursuant
to a valid license. All HT Intellectual Property that consists of license or
other rights to third party property is separately set forth in Section 3.5 of
the HT Disclosure Schedule. HT has all rights in HT Intellectual Property
necessary to carry out HT's current, former and planned future activities,
including without limitation rights to make, use, exclude others from using,
reproduce, modify, adapt, create derivative works based on, translate,
distribute (directly and indirectly), transmit, display and perform publicly,
license, rent, lease, assign and sell HT Intellectual Property in all geographic
locations and fields of use, and to sublicense any or all such rights to third
parties, including the right to grant further sublicenses.

                  (d) HT is not, nor as a result of the execution or delivery of
this Agreement and all other agreements contemplated hereby, or performance of
HT's obligations hereunder or the consummation of the Merger, will HT be, in
violation of any license, sublicense or other agreement relating to any HT
Intellectual Property to which HT is a party or otherwise bound, other than any
violation that will not have a material adverse effect on the Business Condition
of HT. HT is not obligated to provide any consideration (whether financial or
otherwise) to any third party, nor is any third party otherwise entitled to any
consideration, with respect to any exercise of rights by HT or Parent, as
successor to HT, in HT Intellectual Property.

                                     - 9 -
<PAGE>

                  (e) The use, reproduction, modification, distribution,
licensing, sublicensing, sale, or any other exercise of rights in any product,
work, technology, service or process as used, provided, or offered at any time,
or as proposed for use, reproduction, modification, distribution, licensing,
sublicensing, sale, or any other exercise of rights, by HT does not infringe any
copyright, patent, trade secret, trademark, service mark, trade name, firm name,
logo, trade dress, mask work, moral right, other intellectual property right,
right of privacy, or right in personal data of any Person to which HT does not
have a license or other permission sufficient in scope to cover its use thereof.
No claims (i) challenging the validity, effectiveness, or ownership by HT of any
HT Intellectual Property, or (ii) to the effect that the use, reproduction,
modification, manufacturing, distribution, licensing, sublicensing, sale, or any
other exercise of rights in any product, work, technology, service, or process
as used, provided or offered at any time, or as proposed for use, reproduction,
modification, distribution, licensing, sublicensing, sale, or any other exercise
of rights, by HT infringes or will infringe on any intellectual property or
other proprietary or personal right of any Person have been asserted to HT or,
to the knowledge of HT (as defined below), are threatened by any Person nor, to
the knowledge of HT, are there any valid grounds for any BONA FIDE claim of any
such kind. There are no legal or governmental proceedings, including
interference, re-examination, reissue, opposition, nullity, or cancellation
proceedings pending that relate to any HT Intellectual Property, other than
review of pending new applications for patent or other HT Intellectual Property,
and HT is not aware of any information indicating that such proceedings are
threatened or contemplated by any Governmental Entity or any other Person. All
granted or issued patents and mask works and all registered trademarks and
copyright registrations owned by HT are valid, enforceable and subsisting. To
the knowledge of HT, there is no unauthorized use, infringement, or
misappropriation of any HT Intellectual Property by any third party, employee or
former employee.

                  (f) Section 3.5 of the HT Disclosure Schedule separately lists
all parties (other than employees) who have created any portion of, or otherwise
have any rights in or to, HT Intellectual Property. HT has secured from all
parties who have created any portion of, or otherwise have any rights in or to,
HT Intellectual Property valid and enforceable written assignments of any such
work or other rights to HT and has provided true and complete copies of such
assignments to Parent.

                  (g) HT has obtained written agreements from all employees and
from third parties with whom HT, to its knowledge, has shared confidential
proprietary information (i) of HT or (ii) received from others that HT is
obligated to treat as confidential and to obtain the written agreement of
employees and others to keep confidential, that agreements require such
employees and third parties to keep such information confidential in accordance
with the terms thereof. HT has made available copies of such written agreements,
as executed, to Parent.

         3.6 FINANCIAL STATEMENTS; BUSINESS INFORMATION.

                  (a) HT has delivered to Parent an unaudited balance sheet (the
"UNAUDITED BALANCE SHEET") as of January 31, 2000 (the "UNAUDITED BALANCE SHEET
DATE") and an audited balance sheet (the "AUDITED BALANCE Sheet") as of December
31, 1999 (the "AUDITED BALANCE SHEET DATE"), unaudited statements of income and
cash flows for the one-month period ended January 31, 2000 and audited
statements of income and cash flows for its last fiscal year (all of such
balance sheets and statements of income and cash flows are collectively referred
to as the "FINANCIAL STATEMENTS"). The Financial Statements: (i) are in
accordance with the books and records of HT; (ii) present fairly, in all
material respects, the financial position of HT as of the date indicated and the
results of its operations and cash

                                     - 10 -
<PAGE>

flows for such periods; and (iii) have been prepared in accordance with
generally accepted accounting principles consistently applied (subject, in the
case of unaudited statements, to the absence of footnote disclosure and in the
case of unaudited interim statements to year-end adjustments, which will not be
material either individually or in the aggregate and except as described in the
Section 3.6 of the HT Disclosure Schedule). As of the Unaudited Balance Sheet
Date, there were no material liabilities, claims or obligations of any nature,
whether accrued, absolute, contingent, anticipated or otherwise, whether due or
to become due, that are not shown or provided for either in the Unaudited
Balance Sheet or Section 3.6 of the HT Disclosure Schedule, and since the
Unaudited Balance Sheet Date, HT has incurred no liabilities, claims or
obligations of any nature, whether accrued, absolute, contingent, anticipated or
otherwise other than in the ordinary course of business or as disclosed in
Section 3.6 of the HT Disclosure Schedule and except for liabilities incurred by
HT in connection with the preparation and execution of this Agreement and the
consummation of the transactions contemplated herein.

                  (b) All of the accounts, notes and other receivables which are
reflected in the Unaudited Balance Sheet were acquired in the ordinary course of
business; and, except to the extent reserved against in the Unaudited Balance
Sheet, all of the accounts, notes and other receivables which are reflected
therein have been collected in full, or are good and collectible, in the
ordinary course of business; and all of the accounts, notes and other
receivables which have been acquired by HT since the Unaudited Balance Sheet
Date were acquired in the ordinary course of business and have been collected in
full, or are good and collectible, subject to an appropriate reserve determined
in a manner consistent with past practices of HT, in the ordinary course of
business. No accounts, notes or other receivables are contingent upon the
performance by HT of any obligation or contract. No Person has any Lien on any
of such receivables and no agreement for deduction or discount has been made
with respect thereto. The HT Note and any accrued interest includes all amounts
owed by HT to the Stockholder.

                  (c) The business information previously prepared by HT and
delivered to Parent was prepared in good faith, based on assumptions HT deems
reasonable, was prepared for planning purposes, although no assurances are given
that HT will engage in the activities described therein or achieve the results
projected therein.

         3.7 TAXES.

                   (a) The term "TAXES" as used herein means all federal, state,
local and foreign income tax, alternative or add-on minimum tax, estimated,
gross income, gross receipts, sales, use, ad valorem, value added, transfer,
franchise, capital profits, lease, service, license, withholding, payroll,
employment, excise, severance, stamp, occupation, premium, property,
environmental or windfall profit taxes, customs, duties and other taxes,
governmental fees and other like assessments and charges of any kind whatsoever,
together with all interest, penalties, additions to tax and additional amounts
with respect thereto, and the term "TAX" means any one of the foregoing Taxes.
The term "TAX RETURNS" as used herein means all returns, declarations, reports,
claims for refund, information statements and other documents relating to Taxes,
including all schedules and attachments thereto, and including all amendments
thereof, and the term "TAX RETURN" means any one of the foregoing Tax Returns.

                                     - 11 -
<PAGE>

                  (b) HT has timely filed all Tax Returns required to be filed
and has paid all Taxes owed (whether or not shown as due on such Tax Returns),
including, without limitation, all Taxes which HT is obligated to withhold for
amounts owing to employees, creditors and third parties. All Tax Returns filed
by HT were complete and correct in all material respects. None of the Tax
Returns filed by HT or Taxes payable by HT have been the subject of an audit,
action, suit, proceeding, claim, examination, deficiency or assessment by any
Governmental Entity, and no such audit, action, suit, proceeding, claim,
examination, deficiency or assessment is currently pending or, to the knowledge
of HT, threatened. HT is not currently the beneficiary of any extension of time
within which to file any Tax Return, and HT has not waived any statute of
limitation with respect to any Tax or agreed to any extension of time with
respect to a Tax assessment or deficiency. All material elections with respect
to Taxes affecting HT, as of the date hereof, are set forth in the Financial
Statements or in Section 3.7 of the HT Disclosure Schedule. None of the Tax
Returns filed by HT contain a disclosure statement under former Section 6661 of
the Code or Section 6662 of the Code (or any similar provision of state, local
or foreign Tax law). HT is not a party to any Tax sharing agreement or similar
arrangement. HT has never been a member of a group filing a consolidated federal
income Tax Return (other than a group the common parent of which was HT), and HT
does not have any liability for the Taxes of any Person (other than HT) under
Treasury Regulation Section 1.1502-6 (or any corresponding provision of state,
local or foreign Tax law), as a transferee or successor, by contract, or
otherwise.

                  (c) HT is not a party to any agreement, contract, arrangement
or plan that has resulted or would result, separately or in the aggregate, in
the payment of (i) any "excess parachute payments" within the meaning of Section
280G of the Code (without regard to the exceptions set forth in Sections
280G(b)(4) and 280G(b)(5) of the Code) or (ii) any amount for which a deduction
would be disallowed or deferred under Section 162 or Section 404 of the Code. HT
has not agreed to make any adjustment under Section 481(a) of the Code (or any
corresponding provision of state, local or foreign law) by reason of a change in
accounting method or otherwise, and HT will not be required to make any such
adjustment as a result of the transactions set forth in this Agreement. HT does
not have and has not had a permanent establishment in any foreign country, as
defined in any applicable Tax treaty or convention between the United States and
such foreign country. No portion of the Parent Merger Shares is subject to the
Tax withholding provisions of Section 3406 of the Code, or of Subchapter A of
Chapter 3 of the Code or of any other provision of law. No claim has ever been
made by any Governmental Entity in a jurisdiction where HT does not file Tax
Returns that it is or may be subject to Tax in that jurisdiction. None of the
shares of outstanding capital stock of HT are subject to a "substantial risk of
forfeiture" within the meaning of Section 83 of the Code.

                  (d) There are no liens for Taxes (other than for ad valorem
Taxes not yet due and payable) upon the assets of HT. The unpaid Taxes of HT did
not, as of the Balance Sheet Date, exceed the reserve for actual Taxes (as
opposed to any reserve for deferred Taxes established to reflect timing
differences between book and Tax income) as shown on the Unaudited Balance
Sheet, and will not exceed such reserve as adjusted for the passage of time
through the Closing Date in accordance with the past custom and practice of HT
in filing their Tax Returns (taking into account any Taxes incurred as a result
of the transactions contemplated by this Agreement).

                  (e) HT has never filed a consent pursuant to Section 341(f) of
the Code, relating to collapsible corporations. HT and its stockholders made (i)
a valid election for HT to be treated as an "S corporation", as that term is
defined in Section 1361(a) of the Code, for federal income tax purposes and (ii)
a similar valid election under the laws of Massachusetts or any other applicable
Governmental Entity, and all of such elections will be in effect at the
Effective Time. Section 3.7 of the HT

                                     - 12 -
<PAGE>

Disclosure Schedule lists each such election and a true copy of each such
election is attached thereto; there are no grounds for the revocation of any
such election and no such election will be revoked retroactively or otherwise
except at the Effective Time by reason of the Merger. HT has been an S
corporation at all times since its inception through the date hereof. Neither HT
nor any of its stockholders has taken any action that would cause, or would
result in, the termination of the S corporation status of HT, other than
pursuant to this Agreement.

                  (f) To the knowledge of HT, there has not been any audit,
action, suit, proceeding, claim, examination, deficiency or assessment by any
Governmental Entity of any Tax Return filed by a stockholder of HT with respect
to, or which may relate to, items of income, gain, deduction, loss or credit of
HT; and no such audit, action, suit, proceeding, claim, examination, deficiency
or assessment is in progress and such stockholders have not been notified by any
Governmental Entity that any such audit is contemplated or pending.

         3.8 ABSENCE OF CERTAIN CHANGES AND EVENTS. From the Audited Balance
Sheet Date to the date hereof, there has not been:

                  (a) Any transaction involving more than $10,000 entered into
by HT other than in the ordinary course of business; any change (or any
development or combination of developments of which HT has knowledge which is
reasonably likely to result in such a change) in HT's Business Condition, other
than changes in the ordinary course of business which in the aggregate have not
been and are not expected to be materially adverse to HT's Business Condition;
or, without limiting the foregoing, any loss of or damage to any of the
properties of HT due to fire or other casualty or other loss, whether or not
insured, amounting to more than $10,000 in the aggregate;

                  (b) Any declaration, setting aside or payment of any dividend
or other distribution with respect to any shares of capital stock of HT, or any
repurchase, redemption, retirement or other acquisition by HT of any outstanding
shares of capital stock, any Outstanding HT Option, or other securities of, or
other equity or ownership interests in, HT;

                  (c) Any discharge or satisfaction of any Lien or payment or
satisfaction of any obligation or liability (whether absolute, accrued,
contingent or otherwise and whether due or to become due) other than current
liabilities shown on the Unaudited Balance Sheet and current liabilities
incurred since the Unaudited Balance Sheet Date in the ordinary course of
business and consistent with past practice ("ORDINARY COURSE OF BUSINESS");

                  (d) Any change in the Charter Documents of HT or any amendment
of any term of any outstanding security of HT;

                  (e) Any incurrence, assumption or guarantee by HT of any
indebtedness for borrowed money, other than in the ordinary course of business,
in an aggregate amount exceeding $10,000;

                  (f) Any creation or assumption by HT of any Lien on any asset;

                  (g) Any making of any loan, advance or capital contributions
to, or investment in, any Person;

                                     - 13 -
<PAGE>

                  (h) Any sale, lease, pledge, transfer or other disposition of
any material capital asset;

                  (i) Except as set forth on Section 3.8 of the HT Disclosure
Schedule, any material transaction or commitment made, or any material contract
or agreement entered into, by HT relating to its assets or business (including
the acquisition or disposition of any assets) or any relinquishment by HT of any
contract or other right;

                  (j) Any (A) grant of any severance or termination pay to any
director, officer or employee of HT, (B) entering into of any employment,
severance, management, consulting, deferred compensation or other similar
agreement (or any amendment to any such existing agreement) with any director,
officer or employee of HT, (C) change in benefits payable under existing
severance or termination pay policies or employment, severance, management,
consulting or other similar agreements, (D) change in compensation, bonus or
other benefits payable to directors, officers or employees of HT or (E) change
in the payment or accrual policy with respect to any of the foregoing;

                  (k) Any labor dispute or any activity or proceeding by a labor
union or representative thereof to organize any employees of HT, or any
lockouts, strikes, slowdowns, work stoppages or threats thereof by or with
respect to any employees of HT;

                  (l) Any notes or accounts receivable or portions thereof
written off by HT as uncollectible in an aggregate amount exceeding $10,000;

                  (m) Any issuance or sale of any stock, bonds, phantom stock
interest or other securities of which HT is the issuer, or the grant, issuance
or change of any stock options, warrants, or other rights to purchase securities
of HT or phantom stock interest in HT;

                  (o) Any cancellation of any debts or claims or waiver of any
rights of substantial value in an aggregate amount exceeding $10,000;

                  (p) Any sale, assignment or transfer of any HT Intellectual
Property or other similar assets, including licenses therefor;

                  (q) Any capital expenditures, or commitment to make any
capital expenditures, for additions to property, plant or equipment in an
aggregate amount exceeding $10,000;

                  (r) Payment of any amounts to, or liability incurred to or in
respect of, or sale of any properties or assets (real, personal or mixed,
tangible or intangible) to, or any transaction or any agreement or arrangement
with, any corporation or business in which HT or any of its corporate officers
or directors, or any "affiliate" or "associate" (as such terms are defined in
the rules and regulations promulgated under the Securities Act of 1933, as
amended (the "SECURITIES ACT") of any such Person, has any direct or indirect
ownership interests;

                  (s) Any personal expenditures made by HT on behalf of the
Stockholder;

                  (t) Incurrence of any additional debt, financing or other term
instrument balances, above current long-term debt obligations; or

                                     - 14 -
<PAGE>

                  (u) Any agreement undertaking or commitment to do any of the
foregoing.

         3.9 LEASES IN EFFECT. All real property leases and subleases as to
which HT is a party and any amendments or modifications thereof are listed in
Section 3.9 of the HT Disclosure Schedule (each a "LEASE" and collectively, the
"LEASES") are valid, in full force and effect and enforceable, and there are no
existing defaults on the part of HT, and HT has not received or given notice of
default or claimed default with respect to any Lease, nor is there any event
that with notice or lapse of time, or both, would constitute a default on the
part of HT thereunder.

         3.10 PERSONAL PROPERTY; REAL ESTATE.

                  (a) HT has good and marketable title, free and clear of all
title defects and Liens (including, without limitation, leases, chattel
mortgages, conditional sale contracts, purchase money security interests,
collateral security arrangements and other title or interest-retaining
agreements) to all inventory, receivables, furniture, machinery, equipment and
other personal property, tangible or otherwise, reflected on the Unaudited
Balance Sheet or used in HT's business, except for acquisitions and dispositions
since the Unaudited Balance Sheet Date in the ordinary course of business. The
HT Disclosure Schedule lists (i) all computer equipment and (ii) all other
personal property, in each case having a depreciated book value of $10,000 or
more, which are used by HT in the conduct of its business, and all such
equipment and property, in the aggregate, is in good operating condition and
repair, reasonable wear and tear excepted. There is no asset used or required by
HT in the conduct of its business as presently operated which is not either
owned by it or licensed or leased to it.

                  (b) Section 3.10 of the HT Disclosure Schedule contains a
schedule setting forth and describing all real property which is leased by HT,
or in which HT has any other right, title or interest. HT does not own any real
property. True and complete copies of each lease have been provided to Parent,
and such leases constitute the entire understanding relating to HT's use and
occupancy of the leased premises. The leases are presently in full force and
effect without further amendment or modification. HT is not in default in the
performance of obligations under any lease, and HT does not know of any state of
facts which with the giving of notice or the passage of time, or both, would
constitute a default by HT or any other party thereunder.

                  (c) To the knowledge of HT, the improvements located on the
real property described in Section 3.10 of the HT Disclosure Schedule are not
the subject of any official complaint or notice of violation of any applicable
zoning ordinance or building code and there is no use or occupancy restriction
or condemnation proceeding pending or threatened against HT.

         3.11 CERTAIN TRANSACTIONS. Except for (a) relationships with HT as an
officer, director, or employee thereof (and compensation by HT in consideration
of such services) and (b) relationships with HT as stockholders or option
holders therein, none of the directors, officers, or the stockholders of HT, or
any member of any of their families, is presently a party to, or was a party to
during the year preceding the date of this Agreement, any transaction, or series
of similar transactions, with HT, in which the amount involved exceeds $60,000,
including, without limitation, any contract, agreement, or other arrangement (i)
providing for the furnishing of services to or by, (ii) providing for rental of
real or personal property to or from, or (iii) otherwise requiring payments to
or from, any such Person or any other Person in which any such Person has or had
a 5%-or-more interest (as a stockholder, partner, beneficiary, or otherwise) or
is or was a director, officer, employee, or trustee. None of HT's officers

                                     - 15 -
<PAGE>

or directors has any interest in any property, real or personal, tangible or
intangible, including inventions, copyrights, trademarks, or trade names, used
in or pertaining to the business of HT, or any supplier, distributor, or
customer of HT, except for the normal rights of a stockholder, and except for
rights under existing employee benefit plans.

         3.12 LITIGATION AND OTHER PROCEEDINGS. There is no action, suit, claim,
investigation or proceeding (or any basis therefor known to HT) pending against
or, to the knowledge of HT, threatened against HT or its properties and assets
before any court or arbitrator or any Governmental Entity. HT is not subject to
any order, writ, judgment, decree, or injunction that has a material adverse
effect on HT's Business Condition.

         3.13 NO DEFAULTS. HT is not, nor has HT received notice that it would
be with the passage of time, in default or violation of any term, condition, or
provision of (i) the Charter Documents; (ii) any judgment, decree, or order
applicable to HT; or (iii) any loan or credit agreement, note, bond, mortgage,
indenture, contract, agreement, lease, license, or other instrument to which HT
is now a party or by which it or any of its properties or assets may be bound,
except for defaults and violations which, individually or in the aggregate,
would not have a material adverse effect on the Business Condition of HT.

         3.14 MAJOR CONTRACTS. Except for matters disclosed on Section 3.14 of
the HT Disclosure Schedule, HT is not a party to or subject to:

                  (a) Any union contract, or any employment contract or
arrangement (other than "at-will" employment arrangements) providing for future
compensation, written or oral, with any officer, consultant, director, or
employee;

                  (b) Any plan or contract or arrangement, written or oral,
providing for bonuses, pensions, deferred compensation, retirement payments,
profit-sharing or the like;

                  (c) Any joint venture contract or arrangement or any other
agreement which has involved or is expected to involve a sharing of profits;

                  (d) Any OEM agreement, reseller or distribution agreement,
volume purchase agreement, corporate end user sales or service agreement,
reproduction or replication agreement or manufacturing agreement in which the
amount involved exceeds annually, or is expected to exceed in the aggregate over
the life of the contract, $10,000 or pursuant to which HT has granted or
received manufacturing rights, most favored nation pricing provisions, or
exclusive marketing, production, publishing or distribution rights related to
any product, group of products or territory;

                  (e) Any lease for real property, and any lease for personal
property in which the amount of payments which HT is required to make on an
annual basis exceeds $10,000;

                  (f) Any agreement, license, franchise, permit, indenture, or
authorization which has not been terminated or performed in its entirety and not
renewed which may be, by its terms, terminated, impaired, or adversely affected
by reason of the execution of this Agreement and all other agreements
contemplated hereby, the consummation of the Merger, or the consummation of the
transactions contemplated hereby or thereby;

                                     - 16 -
<PAGE>

                  (g) Except for trade indebtedness incurred in the ordinary
course of business (including HT's existing line of credit with BankBoston), any
instrument evidencing or related in any way to indebtedness incurred in the
acquisition of companies or other entities or indebtedness for borrowed money by
way of direct loan, sale of debt securities, purchase money obligation,
conditional sale, guarantee, or otherwise which individually is in the amount of
$10,000 or more;

                  (h) Any license agreement, either as licensor or licensee
(excluding nonexclusive hardware and software licenses granted to distributors
or end-users and commercially available in-licensed software applications);

                  (i) Any contract or agreement containing covenants purporting
to limit HT's freedom to compete in any line of business in any geographic area;
or

                  (j) Any contract or agreement, not elsewhere specifically
disclosed pursuant to this Agreement, involving the payment or receipt by HT of
more than $10,000 in the aggregate.

         All contracts, arrangements, plans, agreements, leases, licenses,
franchises, permits, indentures, authorizations, instruments and other
commitments which are listed in the HT Disclosure Schedule pursuant to this
Section 3.14 are valid and in full force and effect and HT has not, nor, to the
knowledge of HT, has any other party thereto, breached any material provisions
of, or entered into default in any material respect under the terms thereof.
Since the Audited Balance Sheet Date, HT has not amended, modified or terminated
the terms of the contracts or agreements referred to in this Section 3.14 unless
such amendment, modification or termination was in the ordinary course of
business and HT has provided Parent with written notification of such.

         3.15 MATERIAL REDUCTIONS. Except as set forth on Section 3.15 of the HT
Disclosure Schedule, to HT's knowledge, none of the parties to any of the
contracts identified in the HT Disclosure Schedule pursuant to Section 3.14 have
terminated, or, to the knowledge of HT, in any way expressed to HT an intent to
reduce or terminate the amount of its business with HT in the future.

         3.16 INSURANCE AND BANKING FACILITIES. Section 3.16 of the HT
Disclosure Schedule contains a complete and correct list of (i) all contracts of
insurance or indemnity of HT in force at the date of this Agreement (including
name of insurer or indemnitor, agent, annual premium, coverage, deductible
amounts and expiration date) and (ii) the names and locations of all banks in
which HT has accounts or safe deposit boxes, the designation of each such
account and safe deposit box, and the names of all persons authorized to draw on
or have access to each such account and safe deposit box. All premiums and other
payments due from HT with respect to any such contracts of insurance or
indemnity have been paid, and HT does not know of any fact, act, or failure to
act which has or might cause any such contract to be canceled or terminated. All
known claims for insurance or indemnity have been presented.

         3.17 EMPLOYEES. The HT Disclosure Schedule sets forth a list of (a) the
names, titles, salaries and all other compensation of all salaried HT employees
(such term meaning permanent and temporary, full-time and part-time employees)
and (b) the wage rates for non-salaried HT employees (by classification). Any
persons engaged by HT as independent contractors, rather than employees, have
been properly classified as such and have been so engaged in accordance with all
applicable

                                     - 17 -
<PAGE>

federal, foreign, state or local laws. No employee has stated to HT that such
employee intends to resign or retire as a result of the transactions
contemplated by this Agreement or otherwise within six months after the Closing
Date. Hours worked by and payments made to employees of HT have not been in
violation of the Fair Labor Standards Act or any other applicable federal,
foreign, state or local laws dealing with such matters. HT is not and never has
been engaged in any dispute or litigation with an employee or former employee
regarding matters pertaining to intellectual property or assignment of
inventions. HT has never been and, to the knowledge of HT, is not now subject to
a union organizing effort. HT does not have any written contract of employment
or other employment, severance or similar agreement with any of its employees or
any established policy or practice relating thereto, and all of its employees
are employees-at-will. HT is not a party to any pending, or to HT's knowledge,
threatened, labor dispute. HT has complied in all material respects with all
applicable federal, state and local laws, ordinances, rules and regulations and
requirements relating to the employment of labor, including but not limited to
the provisions thereof relating to wages, hours, collective bargaining and
ensuring equality of opportunity for employment and advancement of minorities
and women. There are no claims pending, or, to the knowledge of HT, threatened
to be brought, in any court or administrative agency by any former or current HT
employees for compensation, pending severance benefits, vacation time, vacation
pay or pension benefits, or any other claim threatened or pending in any court
or administrative agency from any current or former employee or any other Person
arising out of HT's status as employer, whether in the form of claims for
employment discrimination, harassment, unfair labor practices, grievances,
wrongful discharge, or otherwise.

         3.18 EMPLOYEE BENEFIT PLANS. Each Plan (as defined below) covering
active, former, or retired employees of HT is listed in Section 3.18 of the HT
Disclosure Schedule. "PLAN" means any employee benefit plan as defined in ERISA
(as defined below) and will also include any employment, severance or similar
contract, arrangement or policy and each plan or arrangement providing for
insurance coverage (including any self-insured arrangements), workers'
compensation, disability benefits, supplemental unemployment benefits, vacation
benefits, pension or retirement benefits or for deferred compensation,
profit-sharing, bonuses, phantom stock, stock options, stock appreciation rights
or other forms of incentive compensation or post-retirement insurance,
compensation or benefits. HT has made available to Parent a copy of each Plan,
and where applicable, any related trust agreement, annuity, or insurance
contract. All annual reports (Form 5500) required to be filed with the Internal
Revenue Service have been properly filed on a timely basis, and HT has provided
copies of the three most recently filed Forms 5500 for each applicable Plan. Any
Plan intended to be qualified under Section 401(a) of the Code has been
determined by the Internal Revenue Service to be so qualified and has remained
tax-qualified to this date and its related trust is tax-exempt and has been so
since its creation. No Plan is covered by Title IV of the Employee Retirement
Income Security Act of 1974, as amended ("ERISA"), or Section 412 of the Code.
No "prohibited transaction," as defined in ERISA Section 406 or Code Section
4975 has occurred with respect to any Plan, unless such a transaction was exempt
from such rules. Each Plan has been maintained and administered in material
compliance with its terms and with the requirements prescribed by any and all
statutes, orders, rules and regulations, including but not limited to ERISA and
the Code, which are applicable to such Plans. There are no pending or
anticipated claims against or otherwise involving any of the Plans and no suit,
action, or other litigation (excluding claims for benefits incurred in the
ordinary course of Plan activities) has been brought against or with respect to
any Plan. All contributions, reserves, or premium payments to the Plan, accrued
to the date hereof have been made or provided for. Neither HT nor any entity
which is considered one employer with HT under Section 414 of the Code or
Section 4001 of ERISA has ever maintained or contributed to or incurred or
expects to incur liability with respect to any Plan subject to

                                     - 18 -
<PAGE>

Title IV of ERISA or any "multi-employer plan" within the meaning of Section
4001(a)(3) of ERISA. There are no restrictions on the rights of HT to amend or
terminate any Plan without incurring any liability thereunder. HT has not
engaged in or is a successor or parent corporation to an entity that has engaged
in a transaction described in ERISA Section 4069. There have been no amendments
to, written interpretation of, or announcement (whether or not written) by HT
relating to, or change in employee participation or coverage under, any Plan.
Neither HT nor any of its ERISA affiliates have any current or projected
liability in respect of post-employment or post-retirement welfare benefits for
retired or former employees of HT other than health care continuation benefits
required to be provided under applicable law. No tax under Section 4980B or
4980D of the Code has been incurred in respect of any Plan that is a group
health plan, as defined in Section 5000(b)(1) of the Code.

         3.19 CERTAIN AGREEMENTS. Except as contemplated by this Agreement,
neither the execution and delivery of this Agreement and all other agreements
contemplated hereby, nor the consummation of the transactions contemplated
hereby will: (i) result in any payment by HT (including, without limitation,
severance, unemployment compensation, parachute payment, bonus or otherwise)
becoming due to any director, employee, or independent contractor of HT under
any Plan, agreement, or otherwise, (ii) increase any benefits otherwise payable
under any Plan or agreement or (iii) result in the acceleration of the time of
payment or vesting of any such benefits.

         3.20 GUARANTEES AND SURETYSHIPS. HT has no powers of attorney
outstanding (other than those issued in the ordinary course of business with
respect to Tax matters), and HT has no material obligations or liabilities
(absolute or contingent) as guarantor, surety, cosigner, endorser, co-maker,
indemnitor, or otherwise respecting the obligations or liabilities of any
Person.

         3.21 BROKERS AND FINDERS. Neither HT nor the Stockholder has retained
any broker, finder, or investment banker in connection with this Agreement or
any of the transactions contemplated by this Agreement, nor does or will HT owe
any fee or other amount to any broker, finder, or investment banker in
connection with this Agreement or the transactions contemplated by this
Agreement.

         3.22 CERTAIN PAYMENTS. Neither HT, nor to the knowledge of HT, any
Person acting on behalf of HT has, directly or indirectly, on behalf of or with
respect to HT: (i) made an unreported political contribution, (ii) made or
received any payment which was not legal to make or receive, (iii) engaged in
any material transaction or made or received any material payment which was not
properly recorded on the books of HT, (iv) created or used any "off-book" bank
or cash account or "slush fund," or (v) engaged in any conduct constituting a
violation of the Foreign Corrupt Practices Act of 1977.

         3.23 ENVIRONMENTAL MATTERS. HT has complied with all federal, state and
local laws (including, without limitation, case law, rules, regulations, orders,
judgments, decrees, permits, licenses and governmental approvals) which are
intended to protect the environment and/or human health or safety (collectively,
"ENVIRONMENTAL LAWS"); HT has not handled, generated, used, stored, transported
or disposed of any material, substance or waste which is regulated by
Environmental Laws ("HAZARDOUS MATERIALS"), except for reasonable amounts of
ordinary office and/or office-cleaning supplies which have been used in
compliance with Environmental Laws; (iii) there is not now, nor has there ever
been, any underground storage tank or asbestos on any real property owned,
operated or leased by HT; (iv) HT has not conducted, nor is it aware of, any
environmental investigations, studies, audits, tests, reviews or analyses, the
purpose of which was to discover, identify, or otherwise characterize the
condition of the soil, groundwater, air or the presence of Hazardous Materials
at any

                                     - 19 -
<PAGE>

real property owned, operated or leased by HT; and (v) there are no
"Environmental Liabilities". For purposes of this Agreement, "ENVIRONMENTAL
LIABILITIES" are any claims, demands, or liabilities under Environmental Laws
which (i) arise out of or in any way relate to HT's operations or activities, or
any real property at any time owned, operated or leased by HT, or any
stockholder's use or ownership thereof, whether vested or unvested, contingent
or fixed, actual or potential, and (ii) arise from or relate to actions
occurring (including any failure to act) or conditions existing on or before the
Closing Date.

         3.24 ENFORCEABILITY OF CONTRACTS, ETC.

                  (a) No Person that is a party to any contract, agreement,
commitment or plan to which HT is a party has a valid defense, on account of
non-performance or malfeasance by HT, which would make any such contracts,
agreement, commitment or plan not valid and binding upon or enforceable against
such parties in accordance with their terms, except to the extent such
enforceability may be subject to or limited by bankruptcy, insolvency,
reorganization, arrangement or similar laws affecting the rights of creditors
generally and usual equity principles.

                  (b) Neither HT, nor, to the knowledge of HT, any other Person,
is in material breach or violation of, or default under, any material contract,
agreement, arrangement, commitment or plan to which HT is a party, and no event
or action has occurred, is pending, or, to the knowledge of HT, is threatened,
which, after the giving of notice, or the lapse of time, or otherwise, would
constitute a material breach or a default by HT or, to the knowledge of HT, any
other Person, under any material contract, agreement, arrangement, commitment or
plan to which HT is a party.

         3.25 ACCOUNTING MATTERS. To the knowledge of HT and the Stockholder, HT
has not taken nor agreed to, and does not plan to, take any action that would
prevent Parent from accounting for the Merger as a "pooling of interest" in
accordance with generally accepted accounting principles, Accounting Principles
Board Opinion No. 16 and all published rules, regulations and policies of the
Securities and Exchange Commission (the "Commission").

         3.26 YEAR 2000. All computer and other systems, software (whether
embedded or otherwise), hardware and other products owned or licensed by HT and
used in connection with the services provided by HT and, to the knowledge of HT,
all computer and other systems, software (whether embedded or otherwise),
hardware and other products produced by any third party that are licensed by HT,
in each case, have been written, manufactured and tested to be Year 2000 Ready.
For purposes of this Agreement, "Year 2000 Ready" shall mean, with respect to
any systems, software (whether embedded or otherwise), product, equipment or
facility, that such system, product, equipment or facility is capable of
correctly processing, providing, receiving and manufacturing the date data
within and between the twentieth and twenty-first centuries, and its operations
and functionality has not been adversely affected and will not be adversely
affected in any material respect as a result of the advent of the Year 2000.

         3.27 DISCLOSURE. Neither the representations or warranties made by HT
or the Stockholder in this Agreement, nor the HT Disclosure Schedule or any
other certificate executed and delivered by HT or the Stockholder pursuant to
this Agreement, when taken together, contains any untrue statement of a material
fact, or omits to state a material fact necessary to make the statements or
facts contained herein or therein not misleading in light of the circumstances
under which they were furnished.

                                     - 20 -

<PAGE>

         3.28 RELIANCE. The foregoing representations and warranties are made by
HT and the Stockholder with the knowledge and expectation that Parent and Merger
Sub are placing reliance thereon.

                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES
                               OF THE STOCKHOLDER

         The Stockholder represents and warrants to Parent and Merger Sub as
follows:

                  (a) Subject to applicable community property laws, the
Stockholder is the lawful owner of the shares of HT Common Stock to be exchanged
for the Parent Merger Shares pursuant to this Agreement and has, and on the
Closing Date will have, good and clear title to such shares of HT Common Stock,
free of all Liens.

                  (b) The Stockholder has, and on the Closing Date will have,
full legal right, power and authority to enter into this Agreement and to sell
and deliver the shares of HT Common Stock owned by him in the manner provided
herein. The Stockholder has duly and validly executed this Agreement and has, or
prior to the Closing, will have duly and validly executed and delivered all
other agreements contemplated hereby, and each of this Agreement and such other
agreements constitutes a valid, binding and enforceable obligation of such
Stockholder in accordance with its terms.

                  (c) The execution, delivery and performance of this Agreement
and the other agreements contemplated hereby by the Stockholder, and the
consummation of the transactions contemplated hereby or thereby, will not
require, on the part of the Stockholder, any consent, approval, authorization or
other order of, or any filing with, any Governmental Entity, or under any
contract, agreement or commitment to which the Stockholder is a party or by
which the Stockholder or property of the Stockholder is bound, and will not
constitute a violation on the part of the Stockholder of any law, administrative
regulation or ruling or court decree, or any contract, agreement or commitment,
applicable to the Stockholder or property of the Stockholder.

                                    ARTICLE V

             REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB

         Except as set forth in the disclosure schedule of Parent dated as of
the date hereof and delivered herewith to HT (the "PARENT DISCLOSURE SCHEDULE")
which identifies the section and subsection to which each disclosure therein
relates (PROVIDED, HOWEVER, that Parent will be deemed to have adequately
disclosed with respect to any section or subsection any matters that are clearly
described elsewhere in such document if the applicability of such disclosure to
such non-referenced sections or subsections is reasonably apparent and Parent
has not intentionally omitted any required cross-references), and

                                     - 21 -
<PAGE>

whether or not the Parent Disclosure Schedule is referred to in a specific
section or subsection, Parent and Merger Sub jointly and severally represent and
warrant to HT as follows:

         5.1 ORGANIZATION AND QUALIFICATION. Parent is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Delaware, has all requisite corporate power and authority to own, lease and
operate its properties and to carry on its businesses as now being conducted,
and is duly qualified and in good standing to do business in each jurisdiction
in which a failure to so qualify would have a material adverse effect on the
Business Condition of Parent. Merger Sub is a corporation duly organized,
validly existing and in good standing under the laws of the jurisdiction of its
incorporation, is recently organized and has conducted no business activities,
other than as contemplated by this Agreement.

         5.2 CAPITALIZATION. The authorized capital stock of Parent consists of
5,000,000 shares of preferred stock, $.01 par value per share, of which no
shares are issued or outstanding or held in Parent's treasury, and 100,000,000
shares of Parent Common Stock, of which, as of January 31, 2000: (a) 16,586,684
shares were validly issued and outstanding, fully paid and nonassessable and (b)
[4,922,344] shares were reserved for issuance pursuant to Parent's stock option
and stock purchase plans for its employees and directors. Except for options and
rights relating to shares described in clause (b) of the preceding sentence, and
except as set forth in Section 5.2 of the Parent Disclosure Schedule or the
Reports (as defined in Section 5.5), there are no options, warrants or other
rights, agreements or commitments (contingent or otherwise) obligating Parent to
issue shares of its capital stock or any other securities convertible into or
evidencing the right to subscribe to shares of its capital stock.

         5.3 AUTHORITY RELATIVE TO THIS AGREEMENT. The execution, delivery and
performance of this Agreement and all other agreements contemplated hereby by
Parent and Merger Sub have been duly authorized by all necessary action of the
Boards of Directors and stockholders of Parent and Merger Sub. Certified copies
of the resolutions adopted by the Boards of Directors of Parent and Merger Sub
and Parent as sole stockholder of Merger Sub approving this Agreement, all other
agreements contemplated hereby and the Merger have been or will be provided to
HT. Each of Parent and Merger Sub has duly and validly executed and delivered
this Agreement and has, or prior to Closing, will have duly and validly executed
and delivered all other agreements contemplated hereby to be executed by it, and
each of this Agreement and such other agreements constitutes a valid, binding
and enforceable obligation of each of Parent and Merger Sub in accordance with
its terms.

         5.4 NON-CONTRAVENTION. Assuming the accuracy of the representations and
warranties of HT and the Stockholder contained in the Agreement and the other
agreements contemplated hereby, neither the execution, delivery or performance
of this Agreement and all other agreements contemplated hereby by Parent and
Merger Sub, nor the consummation of the Merger or any other transaction
described herein, does or will, after the giving of notice, or the lapse of
time, or otherwise, conflict with, result in a breach of, or constitute a
default under, the Charter Documents of Parent or Merger Sub or any federal,
foreign, state or local court or administrative order or process, statute, law,
ordinance, rule or regulation, or any contract, agreement or

                                     - 22 -
<PAGE>

commitment to which Parent is a party, or under which Parent is obligated, or by
which Parent or any of the rights, properties or assets of Parent are subject or
bound; result in the creation of any Lien upon, or otherwise adversely affect,
any of the rights, properties or assets of Parent; terminate, amend or modify,
or give any party the right to terminate, amend, modify, abandon or refuse to
perform or comply with, any contract, agreement or commitment to which Parent is
a party, or under which Parent is obligated, or by which Parent or any of the
rights, properties or assets of Parent are subject or bound; or accelerate,
postpone or modify, or give any party the right to accelerate, postpone or
modify, the time within which, or the terms and conditions under which, any
liabilities, duties or obligations are to be satisfied or performed, or any
rights or benefits are to be received, under any contract, agreement or
commitment to which Parent is a party, or under which Parent may be obligated,
or by which Parent or any of the rights, properties or assets of Parent are
subject or bound, other than any of the foregoing which would not have,
individually or in the aggregate, a material adverse effect on Business
Condition of Parent.

         5.5 (a) SEC DOCUMENTS; FINANCIAL STATEMENTS. Parent has made available
to HT and the Stockholder a true and complete copy of each report, schedule,
registration statement and definitive proxy statement filed by Parent with the
Securities Exchange Commission (the "Commission") since its initial public
offering (as such documents have since the time of their filing been amended,
the "Parent SEC Documents"), which are all the documents (other than preliminary
material) that Parent was required to file with the Commission since such date.
As of their respective dates, the Parent SEC Documents complied in all material
respects with the requirements of the Securities Act of 1933, as amended (the
"Securities Act"), or the Exchange Act of 1934, as amended (the "Exchange Act"),
as the case may be, and the rules and regulations of the Commission thereunder
applicable to such Parent SEC Documents.

         (b) Reports under Exchange Act. In order to permit the eventual sale of
the Parent Merger Shares by the Stockholder, Parent agrees to use commercially
reasonable efforts to:

                  1. make and keep public information available, as those terms
are understood and defined in Rule 144 promulgated under the Securities Act; and

                  2. file with the Commission in a timely manner all reports and
other documents required of the Company under the Securities Act and the
Exchange Act.

         5.6 VALIDITY OF PARENT MERGER SHARES. The Parent Merger Shares to be
issued in the Merger will, when issued, be, validly issued, fully paid and
nonassessable.

         5.7 CONSENTS AND APPROVALS OF GOVERNMENTAL AUTHORITIES. Assuming the
accuracy of the representations and warranties of HT and the Stockholder
contained in the Agreement and the other agreements contemplated hereby, except
for (a) the requirements of state securities (or "Blue Sky") laws, (b) the
filing and recording of the Merger Documents as provided by the MBCL, (c) the
filing of appropriate documents with the Nasdaq Stock Market and (d) the filing
of a Form D and a Form 8-K with the Commission, if applicable, no consent,
approval or authorization of, or declaration, filing or registration with, any
Governmental Entity is required to be made or obtained by Parent or Merger Sub
in connection with the execution, delivery and performance of this Agreement or
the consummation of the transactions contemplated hereby.

         5.8 ABSENCE OF CERTAIN CHANGES OR EVENTS. Except for liabilities
incurred in connection with this Agreement or transactions contemplated hereby,
and except as set forth on Schedule 5.8, since December 31, 1999, there has not
been any material adverse change in the Business Condition of Parent.

                                     - 23 -
<PAGE>

         5.9 DISCLOSURE. Neither the representations or warranties made by
Parent in this Agreement, nor the Parent Disclosure Schedule or any other
certificate executed and delivered by Parent pursuant to this Agreement, when
taken together and with knowledge of the contents of the Reports, contains any
untrue statement of a material fact, or omits to state a material fact necessary
to make the statements or facts contained herein or therein not misleading in
light of the circumstances under which they were furnished.

         5.10 RELIANCE. The foregoing representations and warranties are made by
Parent with the knowledge and expectation that HT and the Stockholder are
placing reliance thereon.

                                   ARTICLE VI

                         COVENANTS OF HT AND STOCKHOLDER

                  During the period from the date of this Agreement (except as
otherwise indicated) and continuing until the earlier of the termination of this
Agreement or the Effective Time, each of HT and the Stockholder agree (except as
expressly contemplated by this Agreement or otherwise permitted with Parent's
prior written consent):

         6.1 CONDUCT OF BUSINESS IN ORDINARY COURSE. HT will carry on its
business in the ordinary course in substantially the same manner as heretofore
conducted and, to the extent consistent with such business, use all reasonable
best efforts consistent with past practice and policies to preserve intact its
present business organization, keep available the services of its present
officers, consultants and employees and preserve its relationships with
customers, suppliers and distributors and others having business dealings with
it. HT will confer on a regular and frequent basis with representatives of
Parent to report operational matters of a material nature and to report the
general status of the ongoing operations of the business of HT. The foregoing
notwithstanding, HT will not:

                  (a) other than in the ordinary course of business consistent
with prior practice, enter into any material commitment or transaction,
including but not limited to any purchase of assets (other than raw materials,
supplies or cash equivalents) for a purchase price in excess of $15,000;
provided, however, that (i) this limitation shall not apply to up to $45,000 in
the aggregate relating to the scheduled buildout of HT's 1st floor office space
at 815 Somerville Ave., Cambridge, MA; and (ii) this limitation shall not apply
to up to $50,000 in the aggregate relating to scheduled computer equipment
replacements and upgrades, which amount shall not exceed an aggregate of $43,000
as of April 30, 2000, or an aggregate of $50,000 as of June 30, 2000.;

                  (b) grant any bonus, severance or termination pay to any
officer, director, independent contractor or employee of HT except as provided
for in the employment agreements described in Section 3.4 of the HT Disclosure
Schedule;

                  (c) enter into or amend any agreements pursuant to which any
other party is granted support, service, marketing or publishing rights, other
than in the ordinary course of business consistent with prior practice, or is
granted distribution rights of any type or scope with respect to any products of
HT;

                                     - 24 -
<PAGE>

                  (d) other than in the ordinary course of business consistent
with prior practice, enter into or terminate any contracts, arrangements, plans,
agreements, leases, licenses, franchises, permits, indentures, authorizations,
instruments, or commitments, or amend or otherwise change in any material
respect the terms thereof in a manner adverse to HT;

                  (e) commence a lawsuit other than: (i) for the routine
collection of bills, (ii) in such cases where HT in good faith determines that
failure to commence suit would result in a material impairment of a valuable
aspect of HT's business PROVIDED THAT HT consults with Parent prior to filing
such suit, or (iii) for a breach of this Agreement or any agreement related
hereto;

                  (f) modify in any material respect existing discounts or other
terms and conditions with dealers, distributors and other resellers of HT's
products or services in a manner adverse to HT;

                  (g) accelerate the vesting or otherwise modify any HT Option,
restricted stock or other outstanding rights or other securities;

                  (h) take any action which would make any representation or
warranty in this Agreement untrue or incorrect, as if made as of such time;

                  (i)  make any expenditures on behalf of the Stockholder;

                  (j) permit, allow or cause HT's balance sheet to negatively
change by more than $100,000 in the aggregate from the amounts on the audited
December 31, 1999 balance sheet as a result of the netting of (i) cash; (ii)
accounts receivables of less than 60 days; (iii) work-in-process less than 30
days; (iv) accounts payable and accrued expenses, notes, and (v) other
liabilities; provided, that this $100,000 negative change will not include the
effect of the permitted buildout and equipment replacement and upgrade expenses
identified in Section 6.1(a), or expenses related to the transactions
contemplated by this agreement of up to an aggregate of $40,000 as described in
Section 8.4. In the event that the above calculation results in a negative
change of more than $100,000, but less than $250,000 at any time prior to the
Closing Date, Stockholder may elect to pay to Parent such amount of variance in
cash or other immediately available funds or reduce the Base Amount by such
amount of variance, in which case Parent shall not have the right to terminate
this Agreement except as otherwise contemplated in Article XI below.

                  (k) fail to retain as an employee, Robert C. Sprung, Douglas
P. Langenberg or Jane Roach (the "Key Employees");

                  (l) lose any of the following key customer accounts: Ethicon,
Inc.; Aetna; Time Magazine; Codman & Shurtleff/Johnson & Johnson; EndoSurgery;
Thomson & Thomson; Zimmer (Bristol Myers/Squibb), unless in each case if such
account is lost, it is replaced with new customers or new divisions of existing
customers of substantially similar revenue potential matching the expected
amounts and periods of purchases by the lost account. For purposes of this
Section 6(l), loss of an account shall occur if HT receives written or oral
notice of such account's intent to discontinue or materially decrease level of
services being purchased, excluding any effects of seasonality; or

                  (m) agree in writing or otherwise to take any of the foregoing
actions.

                                     - 25 -
<PAGE>

         6.2 DIVIDENDS, ISSUANCE OF, OR CHANGES IN SECURITIES. HT will not: (i)
declare or pay any dividends on or make other distributions to its stockholders
(whether in cash, shares or property), (ii) issue, deliver, sell, or authorize,
propose, or agree to, or commit to the issuance, delivery, or sale of any shares
of its capital stock of any class, any Company Voting Debt or any securities
convertible into its capital stock, any options, warrants, calls, conversion
rights, commitments, agreements, contracts, understandings, restrictions,
arrangements or rights of any character obligating HT to issue any such shares,
Company Voting Debt or other convertible securities except as any of the
foregoing is required by Outstanding HT Options; (iii) split, combine or
reclassify any of its capital stock or issue or authorize the issuance of any
other securities in respect of, in lieu of or in substitution for shares of
capital stock of HT, (iv) repurchase or otherwise acquire, directly or
indirectly, any shares of its capital stock or options or warrants related
thereto, or (v) propose any of the foregoing.

         6.3 GOVERNING DOCUMENTS. HT will not amend its Charter Documents.

         6.4 NO ACQUISITIONS. HT will not authorize, recommend, propose or
announce an intention to authorize, recommend or propose, or enter into a letter
of intent (whether or not binding), an agreement in principle or an agreement
with respect to any merger, consolidation or business combination (other than
the Merger), or any acquisition of assets or securities.

         6.5 NO DISPOSITIONS. HT will not sell, lease, license, transfer,
mortgage, encumber or otherwise dispose of any of its material assets or cancel,
release, or assign any material indebtedness or claim, except in the ordinary
course of business.

         6.6 INDEBTEDNESS. HT will not incur any indebtedness for borrowed money
by way of direct loan, sale of debt securities, purchase money obligation,
conditional sale, guarantee or otherwise, other than up to $50,000 of loans,
subject to the limitations in 6.1(j) above.

         6.7 COMPENSATION. HT will not adopt or amend, or modify in any material
respect, any Plan or pay any pension or retirement allowance not required by any
existing Plan. HT will not enter into or modify any employment or severance
contracts, increase the salaries, wage rates or fringe benefits of its officers,
directors or employees or pay bonuses or other remuneration except for current
salaries, severance and other remuneration for which HT is obligated under
arrangements existing prior to the Unaudited Balance Sheet Date to which HT is a
party and which have been disclosed in the HT Disclosure Schedule.

         6.8 CLAIMS. HT will not settle any claim, action or proceeding, except
in the ordinary course of business consistent with prior practice.

         6.9 ACCESS TO PROPERTIES AND RECORDS. Subject to contractual and other
obligations, HT will give Parent and its representatives full access, at a place
reasonably acceptable to HT, during reasonable business hours and following
reasonable notice but in such a manner as not unduly to disrupt the business of
HT, to its senior management, senior technical personnel, premises, properties,
contracts, commitments, books, records and affairs, and will provide Parent with
such financial, technical and operating data and other information pertaining to
its business as Parent may request. With HT's prior consent, which will not be
unreasonably withheld, Parent will be entitled in

                                     - 26 -
<PAGE>

conjunction with HT personnel to make appropriate inquiries of third parties in
the course of its investigation.

         6.10 BREACH OF REPRESENTATIONS AND WARRANTIES. HT will not take any
action that would cause or constitute a breach of any of the representations and
warranties set forth in Article III or that would cause any of such
representations and warranties to be inaccurate in any material respect or that
would constitute a breach of any of its other obligations under this Agreement.
In the event of, and promptly after becoming aware of, the occurrence of or the
pending or threatened occurrence of any event that would cause or constitute
such a breach or inaccuracy, HT will give detailed notice thereof to Parent and
will use its reasonable best efforts to prevent or remedy promptly such breach
or inaccuracy.

         6.11 CONSENTS. HT will promptly apply for or otherwise seek and use
reasonable best efforts to obtain, all Consents, and make all filings with
Governmental Entities, required with respect to the consummation of the Merger.

         6.12 TAX RETURNS. HT will promptly provide or make available to Parent
copies of all tax returns, reports and information statements that have been
filed or are filed prior to the Closing Date.

         6.13 STOCKHOLDER APPROVAL. The Stockholder agrees to vote all of his
shares of HT Common Stock for the approval of this Agreement and the appropriate
Merger Documents as required by the MBCL.

         6.14 EXCLUSIVITY; ACQUISITION PROPOSALS. Unless and until this
Agreement will have been terminated by either party pursuant to Article XI
hereof and thereafter subject to Section 11.5, neither HT nor the Stockholder
will (and each will use its reasonable best efforts to ensure that none of its
officers, directors, agents, representatives or affiliates) take or cause or
permit any Person to take, directly or indirectly, any of the following actions
with any party other than Parent and its designees: (i) solicit, encourage,
initiate or participate in any negotiations, inquiries, or discussions with
respect to any offer or proposal to acquire all or any significant part of HT's
business, assets or capital stock, whether by merger, consolidation, other
business combination, purchase of assets, tender or exchange offer or otherwise
(each of the foregoing, an "ACQUISITION TRANSACTION"), (ii) disclose, in
connection with an Acquisition Transaction, any information not customarily
disclosed to any Person other than Parent or its representatives concerning HT's
business or properties or afford to any Person other than Parent or its
representatives access to its properties, books, or records, except in the
ordinary course of business and as required by law or pursuant to a governmental
request for information, (iii) enter into or execute any agreement relating to
an Acquisition Transaction, or (iv) make or authorize any public statement,
recommendation or solicitation in support of any Acquisition Transaction or any
offer or proposal relating to an Acquisition Transaction other than with respect
to the Merger. In the event that HT is contacted by any third party expressing
an interest in discussing an Acquisition Transaction, HT will promptly notify
Parent of such contact and the identity of the party so contacting HT.

         6.15 NOTICE OF EVENTS. Throughout the period between the date of this
Agreement and the Closing, HT will promptly advise and consult with Parent
regarding any and all material events and developments concerning its financial
position, results of operations, assets, liabilities or business or any of the
items or matters concerning HT covered by the representations, warranties and
covenants of HT and the Stockholder contained in this Agreement.

                                     - 27 -
<PAGE>

         6.16 REASONABLE BEST EFFORTS. HT and the Stockholder will use their
reasonable best efforts to effectuate the transactions contemplated hereby and
to fulfill and cause to be fulfilled the conditions to Closing under this
Agreement.

         6.17 INSURANCE. HT will use its reasonable best efforts to maintain in
force at the Effective Time policies of insurance of the same character and
coverage as those described in the HT Disclosure Schedule, and HT will promptly
notify Parent in writing of any changes in such insurance coverage occurring
prior to the Effective Time.

                                   ARTICLE VII

                               COVENANTS OF PARENT

         During the period from the date of this Agreement and continuing until
the earlier of the termination of this Agreement or the Effective Time (or later
where so indicated), Parent and Merger Sub agree (except as expressly
contemplated by this Agreement or with HT's prior written consent):

         7.1 BREACH OF REPRESENTATIONS AND WARRANTIES. Neither Parent nor Merger
Sub will take any action which would cause or constitute a breach of any of the
representations and warranties set forth in Article V or which would cause any
of such representations and warranties to be inaccurate in any material respect.
In the event of, and promptly after becoming aware of, the occurrence of or the
pending or threatened occurrence of any event which would cause or constitute
such a breach or inaccuracy, Parent will give detailed notice thereof to HT and
will use its reasonable best efforts to prevent or remedy promptly such breach
or inaccuracy.

         7.2 ADDITIONAL INFORMATION; ACCESS. Parent will provide HT and its
stockholders with the information relating to Parent referred to in Section 5.5
and the information relating to Parent to be included in the Information
Statement. In addition, Parent will afford to HT and to its counsel and to the
persons expected to become stockholders of Parent pursuant to the Merger access
throughout the period prior to the Effective Time to its senior management and
all other information concerning Parent as HT or such stockholder may reasonably
request. Such stockholders will also be afforded the opportunity to ask
questions and to receive accurate and complete answers from Parent concerning
the terms and conditions of the Merger and the issuance of the Parent Merger
Shares pursuant thereto.

         7.3 CONSENTS. Parent will promptly apply for or otherwise seek, and use
its reasonable best efforts to obtain, all consents and approvals, and make
filings, required with respect to the consummation of the Merger.

         7.4 REASONABLE BEST EFFORTS; REORGANIZATION. Each of Parent and Merger
Sub will use its reasonable best efforts to effectuate the transactions
contemplated hereby and to fulfill and cause to be fulfilled the conditions to
Closing under this Agreement. It is the intent of the Stockholders, HT, Parent
and the Surviving Corporation that this Merger qualify as a tax-free
reorganization under Section 368(a) of the Code. Neither Parent nor HT nor the
Stockholder shall take any action which

                                     - 28 -
<PAGE>

reasonably would be expected to cause the Merger to fail to qualify as a
tax-free reorganization under Section 368(a) of the Code.

         7.5 OFFICERS AND DIRECTORS. Parent agrees that all rights to
indemnification existing on the date hereof in favor of the present or former
officers and directors of HT with respect to actions taken in their capacities
as directors or officers of HT prior to the Effective Time as provided in the
Charter Documents of HT and any applicable indemnification agreements (copies of
which have been provided to Parent) will survive the Merger and continue in full
force and effect following the Effective Time and the obligations related
thereto will be assumed by Parent. Notwithstanding the foregoing the provisions
of such Charter Documents or agreements will have no effect on the obligations
of any stockholders of HT pursuant to Article X of this Agreement or the Escrow
Agreement.

         7.6 NASDAQ NATIONAL MARKET LISTING. Parent will use its reasonable best
efforts to cause the Parent Merger Shares to be authorized for trading on the
Nasdaq National Market as soon as practicable.

         7.7 NOTICE OF EVENTS. Throughout the period between the date of this
Agreement and the Closing, Parent will promptly advise and consult with HT
regarding any and all material adverse change to the representations, warranties
and covenants of Parent and Merger Sub contained in this Agreement.

         7.8 THIRD PARTY BENEFICIARIES. Sections 7.5 and 7.6 will survive the
consummation of the Merger, are intended to benefit the stockholders of HT that
receive Parent Merger Shares (the "New Parent Stockholders"), will be binding on
Parent and its successors and assigns, and will be enforceable by the officers
and directors of HT and the New Parent Stockholder.

                                  ARTICLE VIII

                              ADDITIONAL AGREEMENTS

         In addition to the foregoing, Parent, Merger Sub, HT and the
Stockholder each agree to take the following actions after the execution of this
Agreement.

         8.1      INVESTMENT AGREEMENTS.

                  (a) All resales of Parent Common Shares by the New Parent
Stockholders will be subject to the restrictions described in the investment
agreement (the "INVESTMENT AGREEMENT") in the form attached as EXHIBIT 8.1.

                  (b) All resales of Parent Common Shares by the Stockholder
will be subject to the third restated registration rights agreement of Parent
(the "REGISTRATION RIGHTS AGREEMENT") in the form attached as EXHIBIT 8.2.

                                     - 29 -
<PAGE>

                  (c) Parent will be entitled to place the legends as referred
to in the Investment Agreement and Registration Rights Agreement on each
certificate evidencing any Parent Common Shares to be received by the
stockholders pursuant to the terms of this Agreement and to issue appropriate
stop transfer instructions to the transfer agent for Parent Common Shares
consistent with the terms of the Investment Agreement and Registration Rights
Agreement.

         8.2 LEGAL CONDITIONS TO THE MERGER. Each of Parent, Merger Sub, HT and
the Stockholder will use all reasonable best efforts to take actions necessary
to comply promptly with all legal requirements which may be imposed on it with
respect to the Merger. Each of Parent, Merger Sub, HT and the Stockholder will
use all reasonable best efforts to take all actions to obtain (and to cooperate
with the other parties in obtaining) any consent required to be obtained or made
by HT, Merger Sub, or Parent in connection with the Merger, or the taking of any
action contemplated thereby or by this Agreement.

         8.3 EMPLOYEE BENEFITS. Nothing contained herein will be considered as
requiring HT or Parent to continue any specific plan or benefit, or to confer
upon any employee, beneficiary, dependent, legal representative or collective
bargaining agent of such employee any right or remedy of any nature or kind
whatsoever under or by reason of this Agreement, including without limitation
any right to employment or to continued employment for any specified period, at
any specified location or under any specified job category, except as
specifically provided for in an offer letter or other agreement of employment.
It is specifically understood that continued employment with HT or employment
with Parent is not offered or implied for any other employees of HT and any
continuation of employment with HT after the Closing will be at will except as
specifically provided otherwise in an offer letter or other agreement of
employment.

         8.4 EXPENSES. Whether or not the Merger is consummated, all costs and
expenses incurred in connection with this Agreement and the transactions
contemplated hereby and thereby, including investment banking, legal and
accounting expenses, will be paid by the party incurring such expense; PROVIDED,
HOWEVER, that any expenses incurred by HT in excess of $40,000 shall be borne by
the stockholders of HT (without regard to Section 10.4); through the
determination of the Modified Share Amount as set forth in Section 2.1(d);
PROVIDED, FURTHER, that HT will itemize any such investment banking, legal and
accounting expenses of HT prior to Closing and provide Parent with a copy of
such estimate at the Closing; and PROVIDED, FURTHER, that the provisions of this
Section 8.4 shall not be construed to relieve a party from liability resulting
from such party's breach of this Agreement.

         8.5 ADDITIONAL AGREEMENTS. In case at any time after the Effective Time
any further action is reasonably necessary or desirable to carry out the
purposes of this Agreement or to vest the Surviving Corporation with full title
to all properties, assets, rights, approvals, immunities and franchises of HT,
the proper officers and directors of each corporation which is a party to this
Agreement will take all such necessary action. Without limiting the foregoing,
on or prior to the Closing Date, HT will deliver to Parent a properly executed
statement satisfying the requirements of Treasury Regulation Sections 1.897-2(h)
and 1.1445-2(c)(3) in a form reasonably acceptable to Parent.

         8.6 PUBLIC ANNOUNCEMENTS. Neither Parent, HT nor the Stockholder will
disseminate any press release or other announcement concerning this Agreement or
the transactions contemplated herein to any third party (except to the
directors, officers and employees of the parties to this Agreement whose direct
involvement is necessary for the consummation of the transactions

                                     - 30 -
<PAGE>

contemplated under this Agreement, to the attorneys, advisors and accountants of
the parties hereto, or except as Parent determines in good faith to be required
by applicable law after consultation with HT) without the prior written
agreement of Parent and HT.

         8.7 CONFIDENTIALITY. HT and Parent have entered into a Confidentiality
and Nondisclosure Agreement dated November 12, 1999, concerning each party's
obligations to protect the confidential information of the other party. HT and
Parent each hereby affirm each of their obligations under such agreement. If
this Agreement is terminated in accordance with Article XI hereof, Parent will,
and will cause its accountants, counsel and other representatives to deliver to
HT all documents and other material, and all copies thereof, obtained by Parent
or on its behalf from HT in connection with this Agreement, whether so obtained
before or after the execution hereof, and will not disclose any such information
or documents to any third parties or make any use of such. If this Agreement is
terminated in accordance with Article XI hereof, HT will, and will cause its
accountants, counsel and other representatives to, deliver to Parent all
documents and other material, and all copies thereof, obtained by HT or on its
behalf or by a stockholder of HT from Parent in connection with this Agreement,
whether so obtained before or after the execution hereof, and will not disclose
any such information or documents to any third parties or make any use of such.

         8.8 POOLING.

                  (a) Parent, the Merger Sub, HT and the Stockholder will use
all reasonable best efforts, will cooperate fully and will take all actions as
are reasonably necessary to allow the Merger and other transactions contemplated
by this Agreement to be accounted for as a "pooling of interests" in accordance
with United States generally accepted accounting principles which will be
acceptable to the Commission.

                  (b) HT has delivered to Parent prior to the date of this
Agreement a letter from its counsel that identifies all persons who such counsel
believes may be "affiliates" of HT, as such term is used in Rule 145 under the
Securities Act and applicable accounting pronouncements of the Commission (each
such Person, an "HT AFFILIATE"). Each such HT Affiliate has executed and
delivered to Parent a written agreement (an "AFFILIATE AGREEMENT") in the form
of EXHIBIT 8.8 hereto to the effect that such HT Affiliate (i) has not made and
will not make any disposition of any shares of HT Common Stock or other
securities of HT in the 30-day period prior to the Effective Time, and (ii) will
not make any disposition of any of the Parent Merger Shares to be received by
such Person after the Effective Time until Parent shall have publicly released a
report including the combined financial results of Parent and HT for a period of
at least 30 days of combined operations of Parent and HT.

         8.9 HART-SCOTT-RODINO FILING. If and to the extent applicable, Parent,
HT and each stockholder of HT agree to file, and to cause any other Person
obligated to do so as a result of such person's stock holdings in Parent or HT,
a Notification and Report Form in accordance with the notification requirements
of the Hart-Scott-Rodino Antitrust Improvements Act of 1976 and the rules and
regulations thereunder (collectively, the "H-S-R ACT") with the Antitrust
Division of the United States Department of Justice and the Federal Trade
Commission and to use its and their reasonable best efforts to achieve the
prompt termination or expiration of the waiting period or any extension thereof
provided for under the HSR Act as a prerequisite to the consummation of the
transactions provided for herein.

                                     - 31 -
<PAGE>

         8.10 TAX MATTERS. (a) In the event that it is determined by a finding
or order in connection with any governmental or judicial audit or proceeding,
including any settlement of such a proceeding to which any of the parties hereto
are parties that HT's S Corporation election pursuant to Section 1362 of the
Code was not validly in effect for any period after such election was
purportedly made, then the stockholders of HT shall promptly remit to Parent in
cash any federal, state and/or local Tax liability (including any penalties,
additions to Tax or interest assessed with respect thereto) of HT in connection
with Taxes that are imposed on the Surviving Corporation or Parent as a result
of such invalid election. Such payment shall be made within 15 days after the
date such tax liability has been so determined. The obligations to remit such
cash to Parent as described in this Section 8.10 shall be treated as separate
from the stockholders' other indemnification obligations hereunder and in
addition to amounts that may be owed to Parent under the Escrow Agreement.
Notwithstanding anything to the contrary contained in this Agreement or in the
Escrow Agreement, the provisions of this Section 8.10 shall survive the
termination of the Escrow Agreement and shall remain in effect as personal
obligations of the stockholders of HT until the applicable statutes of
limitations shall have expired.

         (b) The Stockholder shall prepare or cause to be prepared and file or
cause to be filed all Tax Returns for HT for all periods ending on or prior to
the Closing Date that are filed after the Closing Date, subject to review and
consent by Parent for each such Tax Return prior to filing, with such consent
not to be unreasonably withheld. To the extent permitted by applicable law, the
stockholders of HT shall include any income, gain, loss, deduction or other tax
items for such periods on their Tax Returns in a manner consistent with the
Schedule K-1's prepared by Stockholders for such periods.

         (c) Parent, HT and Stockholder shall cooperate fully, as and to the
extent reasonably requested by the other party, in connection with the filing of
any Tax Returns of HT and any audit, litigation or other proceeding with respect
to Taxes. Such cooperation shall include the retention and (upon the other
party's request) the provision of records and information that are reasonably
relevant to any such audit, litigation, or other proceeding, and making
employees available on a mutually convenient basis to provide additional
information and explanation of any material provided hereunder. HT and the
Stockholder agree (a) to retain all books and records with respect to Tax
matters pertinent to HT relating to any taxable period beginning before the
Closing Date, until the expiration of the statute of limitations (and, to the
extent notified by Parent or Stockholder, any extensions thereof) of the
respective taxable periods, and to abide by all record retention agreements
entered into with any taxing authority, and (b) to give the other party
reasonable written notice prior to transferring, destroying or discarding any
such books and records and, if the other party so requests, HT or the
Stockholder, as the case may be, shall allow the other party to take possession
of such books and records; provided, however, that such party may refuse to
allow the other party to take such possession if such books and records contain
material information confidential to such party and such party provides written
explanation to the other party of the basis for such confidentiality.
Notwithstanding the foregoing, Parent shall not cause or permit HT, and HT shall
not, amend any of its Income Tax Returns for any period beginning before the
Closing Date except upon the written request of the Stockholder or Parent, to
which written request Parent, HT and Stockholder, as the case may be, shall have
the right of consent, such consent by either party not to be unreasonably
withheld.

         8.11 EMPLOYMENT, CONSULTING AND NONCOMPETITION AGREEMENTS. Simultaneous
with the execution of this Agreement, HT will cause each of Douglas Langenberg,
Robert Sprung and Jane Roach to execute employment or consulting and/or
non-competition agreements to become effective of

                                     - 32 -
<PAGE>

as of the Effective Time in the form provided by Parent to HT. In addition, at
the Effective Time, HT shall cause each of the employment agreements with the
individuals set forth on Schedule 8.11 to be terminated in all respects without
liability to HT or any successor.

         8.12 LEASE AGREEMENT. Simultaneously with the execution of this
Agreement, the Stockholder will enter into a Lease Agreement with Parent
effective upon closing for the space currently occupied by HT at 815 Somerville
Ave., Cambridge, MA 02140, in the form attached as exhibit 8.12.

                                   ARTICLE IX

                              CONDITIONS PRECEDENT

         9.1 CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE MERGER. The
respective obligations of each party to effect the Merger will be subject to the
satisfaction prior to the Closing Date of the following conditions:

                  (a) GOVERNMENTAL APPROVALS. Other than the filing of the
Merger Documents with the Secretary of State of Massachusetts, all statutory
requirements and all Consents of Governmental Entities legally required for the
consummation of the Merger and the transactions contemplated by this Agreement
will have been filed, occurred, or been obtained, other than such Consents for
which the failure to obtain would not have a material adverse effect on the
consummation of the Merger or the other transactions contemplated hereby or on
the Business Condition of Parent or HT. If and to the extent applicable, the
filing and waiting period requirements under the H-S-R Act will have been
complied with and will have expired or terminated.

                  (b) NO RESTRAINTS. No statute, rule or regulation, and no
final and nonappealable order, decree or injunction will have been enacted,
entered, promulgated or enforced by any court or Governmental Entity of
competent jurisdiction which enjoins or prohibits the consummation of the
Merger.

                  (c) PARENT POOLING LETTER. Parent will have received a letter
dated immediately prior to the Closing Date from PricewaterhouseCoopers LLP,
Parent's independent accountants, to the effect that such firm concurs with
Parent's management that no conditions exist that would preclude Parent from
accounting for the Merger as a "pooling of interests" in accordance with United
States generally accepted accounting principles and applicable rules and
regulation of the Commission and Parent shall have delivered a copy of such
letter to HT.

                  (d) HT POOLING LETTER. Grant Thornton LLP shall have delivered
to HT a letter dated immediately prior to the Closing date to the effect that HT
is "poolable" for accounting purposes under Accounting Principles Board Opinion
No. 16, United States generally accepted accounting principles and applicable
rules and regulations of the Commission and HT shall have delivered a copy of
such letter to Parent.

                                     - 33 -
<PAGE>

         9.2 CONDITIONS OF OBLIGATIONS OF PARENT AND MERGER SUB. The obligations
of Parent and Merger Sub to effect the Merger are subject to the satisfaction of
the following conditions unless waived by Parent and Merger Sub:

                  (a) REPRESENTATIONS AND WARRANTIES OF HT AND THE STOCKHOLDER.
The representations and warranties of HT and the Stockholder set forth in this
Agreement will be true and correct in all material respects as of the date of
this Agreement and as of the Closing Date as though made on and as of the
Closing Date, except (i) for such breaches and inaccuracies that individually,
or in the aggregate, have not had, and cannot reasonably be expected to have, a
material adverse effect on HT's Business Condition, (ii) as otherwise
contemplated by this Agreement, (iii) as a result of actions taken or not taken
at the direction of or after consultation with and written concurrence of Parent
and (iv) for representations and warranties specifically limited to an earlier
date(s). Parent will have received a certificate signed by or on behalf of the
Stockholder and by the chief executive officer and the chief financial officer
of HT to such effect on the Closing Date.

                  (b) PERFORMANCE OF OBLIGATIONS OF HT AND THE STOCKHOLDER. HT
and the Stockholder will have performed all agreements and covenants required to
be performed by them under this Agreement prior to the Closing Date except (i)
for such failures to perform that individually, or in the aggregate, have not
had, and cannot reasonably be expected to have, a material adverse effect on
HT's Business Condition, (ii) as otherwise contemplated or permitted by this
Agreement and (iii) as a result of actions taken or not taken at the direction
of or after consultation with and written concurrence of Parent, and Parent will
have received a certificate signed by the Stockholder and by the chief executive
officer of HT to such effect on the Closing Date.

                  (c) INVESTMENT AND ESCROW AGREEMENTS. Parent will have
received from the New Parent Stockholders duly executed Investment Agreements
and the Escrow Agreement.

                  (d) EMPLOYMENT AND NONCOMPETITION AGREEMENTS. The following
individuals will have executed employment, consulting and/or non-competition
agreements in the form previously provided by Parent to HT: Robert C Sprung,
Douglas Langenberg and Jane Roach.

                  (e) LEGAL ACTION. There will not be threatened in writing or
pending any action, proceeding or other application before any court or
Governmental Entity brought by any Person or Governmental Entity: (i)
challenging or seeking to restrain or prohibit the consummation of the
transactions contemplated by this Agreement, or seeking to obtain any material
damages from Parent, Merger Sub or HT as a result of such transactions; or (ii)
seeking to prohibit or impose any limitations on Parent's ownership or operation
of all or any portion of HT's business or assets, or to compel Parent to dispose
of or hold separate all or any portion of its or HT's business or assets as a
result of the transactions contemplated by the Agreement which if successful
would have a material adverse effect on Parent's ability to receive the
anticipated benefits of the Merger and the employment of the individuals
referenced in Section 9.2(d) except for actions that would not have a material
adverse effect on the Business Condition of HT.

                  (f) OPINION OF COUNSEL. Parent will have received an opinion
dated as of the Closing Date of Foley, Hoag & Elliot, LLP, counsel to HT,
substantially in the form attached as EXHIBIT 9.2.

                                     - 34 -
<PAGE>

                  (g) CONSENTS. Parent will have received duly executed copies
of all Consents specified in the HT Disclosure Schedule, and there will not be
any material Consents which have not been received and are required to be
disclosed in HT Disclosure Schedule which have not been so disclosed, in each
case except for such thereof as Parent and HT will have agreed in writing will
not be obtained.

                  (h) TERMINATION OF RIGHTS AND CERTAIN SECURITIES. Any
registration rights, rights of refusal, voting rights, rights to any liquidation
preference or redemption rights relating to any security of HT will have been
terminated or waived or satisfied as of the Closing.

                  (i) STOCKHOLDER APPROVALS. This Agreement and the Merger will
have been approved by the stockholders of HT.

                  (j) TERMINATION OF 401(K) PLAN. The HT Board of Directors will
have passed and not rescinded resolutions satisfactory to Parent's counsel
effectively terminating HT's 401(k) Plan immediately prior to the Closing.

                   (k) SECURITIES LAW COMPLIANCE. All issuances of capital stock
of HT will have been conducted in compliance with Regulation D under the
Securities Act and applicable state securities laws;

                  (l) NOTE. The HT Note will have been cancelled and be of no
further force and effect.

(M) RELEASE OF GUARANTEE. The Stockholder shall cause HT to be released as
guarantor of the Mortgage on the property presently occupied by HT.

         9.3 CONDITIONS OF OBLIGATION OF HT. The obligation of HT and the
Stockholder to effect the Merger is subject to the satisfaction of the following
conditions unless waived by HT and the Stockholder:

                  (a) REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB.
The representations and warranties of Parent and Merger Sub set forth in this
Agreement will be true and correct in all material respects as of the date of
this Agreement and as of the Closing Date as though made on and as of the
Closing Date, except for such breaches or inaccuracies, that, individually, or
in the aggregate, have not had, and cannot reasonably be expected to have, a
material adverse effect on the Business Condition of the Parent, or as otherwise
contemplated by this Agreement, and HT will have received a certificate signed
on behalf of Parent by a duly authorized officer of Parent to such effect.

                  (b) PERFORMANCE OF OBLIGATIONS OF PARENT AND MERGER SUB.
Parent and Merger Sub will have performed all agreements and covenants required
to be performed by them under this Agreement prior to the Closing Date, except
where such failures to perform have not had, and cannot reasonably be expected
to have, a material adverse effect on the Business Condition of the Parent, and
HT will have received a certificate signed on behalf of Parent by officers of
Parent to such effect.

                                     - 35 -
<PAGE>

                  (c) OPINION OF PARENT'S COUNSEL. HT and the Stockholder have
received an opinion dated the Closing Date of Testa, Hurwitz & Thibeault, LLP,
substantially in the form attached as EXHIBIT 9.3.

                  (d) STOCKHOLDER APPROVAL. This Agreement and the Merger will
have been approved and adopted by the requisite vote of the stockholders of HT,
as required by the MBCL and HT's Charter Documents; PROVIDED, HOWEVER, that the
inclusion of this condition will not be construed in any way as excusing the
Stockholder from fulfilling his covenant in Section 6.13.

                  (e) ESCROW AGREEMENT. Parent shall have duly executed and
delivered the Escrow Agreement.

                  (f) TAX-FREE REORGANIZATION. HT shall have received a written
opinion from Foley, Hoag & Elliot, LLP to the effect that the Merger should
constitute a reorganization within the meaning of Section 368 of the Code. In
preparing such tax opinion, counsel may rely on reasonable assumptions and
reasonable representations relating thereto.

                  (g) LEGAL ACTION. There will not be threatened in writing or
pending any action, proceeding or other application before any court or
Governmental Entity brought by any Person or Governmental Entity: (i)
challenging or seeking to restrain or prohibit the consummation of the
transactions contemplated by this Agreement, or seeking to obtain any material
damages from HT or the Stockholder as a result of the transactions contemplated
by this Agreement or (ii) restricting in any way the receipt, ownership, or
ability to dispose of the consideration to be received by any stockholder of HT
in the transactions contemplated by this Agreement; PROVIDED, HOWEVER, that HT
and the Stockholder will automatically be deemed to waive this condition if
Parent agrees to indemnify, defend and hold any such named party harmless
against any such action.

                                    ARTICLE X

                                 INDEMNIFICATION

         10.1 INDEMNIFICATION RELATING TO AGREEMENT. Subject to this Article X,
the Stockholder, and, as an integral term of the Merger, all other stockholders
of HT who accept the Parent Merger Share and execute the Escrow Agreement (which
is a condition to receiving such consideration) jointly and severally, hereby
agree to defend, indemnify and hold Parent harmless from and against, and to
reimburse Parent with respect to, any and all losses, damages, liabilities,
claims, judgments, settlements, fines, costs and expenses (including reasonable
attorneys' fees), determined as provided in Section 10.3 ("INDEMNIFIABLE
AMOUNTS"), of every nature whatsoever incurred by Parent (which will be deemed
to include any of the foregoing incurred by the Surviving Corporation) by reason
of or arising out of or in connection with (i) any breach, or any claim
(including claims by parties other than Parent) that constitutes a breach, by HT
or the Stockholder of any representation or warranty of HT or the Stockholder
contained in this Agreement or in any certificate or other document delivered to
Parent pursuant to this Agreement, other than any breach or related claim taken
or not taken at the written direction of or after consultation with and written
concurrence of Parent and (ii) the failure, partial or total, of HT or the
Stockholder to perform any agreement or covenant required by this Agreement to
be

                                     - 36 -
<PAGE>

performed by it or them other than any breach or related claim taken or not
taken at the written direction of or after consultation with and written
concurrence of Parent. The foregoing obligations to indemnify Parent will be
determined without regard to any right to indemnification to which any Person
may have in his or her capacity as an officer, director, employee, agent or any
other capacity of HT, and no stockholder of HT will be entitled to any
indemnification from HT or the Surviving Corporation for amounts paid hereunder.
There will be no right of contribution or subrogation from Parent or the
Surviving Corporation for indemnification payments made by or for the account of
the stockholders of HT.

         10.2 THIRD PARTY CLAIMS. With respect to any claims or demands by third
parties as to which Parent may seek indemnification hereunder, whenever Parent
will have received a written notice that such a claim or demand has been
asserted or threatened, Parent will promptly notify the Stockholder (as
Indemnification Representative) of such claim or demand and of the facts within
Parent's knowledge that relate thereto within a reasonable time after receiving
such written notice. The Stockholder will then have the right to defend,
contest, negotiate or settle any such claim or demand through counsel of his own
selection, satisfactory to Parent, and solely at the Stockholder's own cost and
expense, which costs and expenses will be payable out of the property being held
pursuant to the Escrow Agreement. Notwithstanding the preceding sentence, the
Stockholder will not settle, compromise, or offer to settle or compromise any
such claim or demand without the prior written consent of Parent, which consent
will not be unreasonably withheld. Without limiting HT's rights to object for
other reasons, Parent may object to a settlement or compromise which includes
any provision which in its reasonable judgment may have an adverse impact on or
establish an adverse precedent for the Business Condition of Parent or any of
its Subsidiaries. If the Stockholder gives notice to Parent within twenty (20)
calendar days after Parent has notified the Stockholder that any such claim or
demand has been made in writing, that the Stockholder elects to have Parent
defend, contest, negotiate, or settle any such claim or demand, then Parent will
have the right to contest and/or settle any such claim or demand and seek
indemnification pursuant to this Article X as to any Indemnifiable Amounts;
PROVIDED, HOWEVER, that Parent will not settle, compromise, or offer to settle
or compromise any such claim or demand without the prior written consent (which
may include a general or limited consent) of the Stockholder, which consent will
not be unreasonably withheld. If the Stockholder fails to give written notice to
Parent of his intention to contest or settle any such claim or demand within
twenty (20) calendar days after Parent has notified the Stockholder that any
such claim or demand has been made in writing, or if any such notice is given
but any such claim or demand is not contested by the Stockholder within a
reasonable time thereafter, Parent will have the right to contest and/or settle
any such claim or demand in its sole discretion and seek indemnification
pursuant to this Article X as to any Indemnifiable Amounts. The adoption of this
Agreement or the execution of the Escrow Agreement by the stockholders of HT
will also constitute their approval of the Stockholder as Indemnification
Representative.

         10.3 LIMITATIONS. Notwithstanding any other provision in this Article
X, Parent will be entitled to indemnification only to the extent that the
aggregate Indemnifiable Amounts (which shall be determined for all purposes of
this Article X disregarding any qualification in any representation or warranty
as to "materially" or "material") exceed Fifty Thousand Dollars ($50,000) (the
"THRESHOLD AMOUNT") PROVIDED THAT at such time as the amount to which Parent is
entitled to be indemnified exceeds the Threshold Amount, Parent shall be
entitled to be indemnified only in excess of the Threshold Amount. The aggregate
amount to which Parent will be entitled to be indemnified will not exceed a
dollar amount equal to the aggregate number of Escrow Shares valued at the
Parent Average

                                     - 37 -
<PAGE>

Closing Price, and the liability of any single stockholder of HT for
indemnification obligations after the termination of the Escrow Agreement shall
be further limited to such stockholder's PRO RATA share of any Indemnifiable
Amounts based on the number of Parent Merger Shares received by such stockholder
relative to the aggregate number of Parent Merger Shares; PROVIDED, HOWEVER,
that there will be no limitation on the obligations of any person for
Indemnifiable Amounts arising out of criminal activity or fraud or willful
misstatements or omissions by HT or such person and that the Threshold Amount
shall not apply to breaches of representation of any Letter of Transmittal or
Article IV (a) and (b). Parent may seek indemnification hereunder after the
termination of the Escrow during the period as described in Section 10.5.

         10.4 BINDING EFFECT. The indemnification obligations contained in this
Article X are an integral part of this Agreement and the Merger in the absence
of which the parties hereto would not have entered into this Agreement.

         10.5 TIME LIMIT. The representations, warranties, covenants and
agreements of HT and the Stockholder set forth in this Agreement and the
certificates and agreements executed or delivered pursuant to the Agreement will
survive the Closing for one year; PROVIDED, HOWEVER, that claims relating to
representations and warranties in Sections 3.6(a) and (b) may be made only on or
before the date that Parent publishes audited financial results for the year
ended December 31, 2000 covering combined operations of Parent and HT.

         10.6 SOLE REMEDY. Except with respect to breaches of Section 3.2(a) and
(b) and Article IV (a) and (b), and as otherwise limited pursuant to Section
8.10 (the "Special Items"), the provisions of this Article X and the provisions
of the Escrow Agreement will be the sole and exclusive remedy of (and
corresponding liability of any stockholder of HT, in such stockholder's capacity
as such, to) Parent, Merger Sub and the Surviving Corporation for any damage,
claim, cause of action or right of any nature arising out of or relating to this
Agreement, the certificates or other documents executed or delivered herewith,
or the transactions contemplated hereby; PROVIDED, HOWEVER, that nothing in this
Agreement or the Escrow Agreement will be deemed to limit any right or remedy
for criminal activity or fraud, or willful misstatements or willfull omissionsin
any statement or certificate delivered by HT or Stockholder pursuant to this
Agreement, Investment Agreement, Affiliate Agreement, employment agreement or
non-competition agreement described in Section 8.11 or the Registration Rights
Agreement, provided further that the sole source of payment for the
indemnification, except for the Special Items, shall be the Escrow Shares.

                                   ARTICLE XI

                                   TERMINATION

         11.1 MUTUAL AGREEMENT. This Agreement may be terminated at any time
prior to the Effective Time by the written consent of Parent and HT.

         11.2 TERMINATION BY PARENT. This Agreement may be terminated by Parent
(PROVIDED THAT it is not then in material breach of any representation,
warranty, covenant or agreement contained in this Agreement) alone, by means of
written notice to HT, if there has been a material breach by HT or the

                                     - 38 -
<PAGE>

Stockholder of any representation, warranty, covenant or agreement set forth in
this Agreement or other ancillary agreements, which breach would result in a
failure to satisfy the closing conditions contained in Section 9.2 and has not
been cured within five (5) business days following receipt by HT of notice of
such breach.

         11.3 TERMINATION BY HT. This Agreement may be terminated by HT
(PROVIDED THAT it is not then in material breach of any representation,
warranty, covenant or agreement contained in this Agreement) alone, by means of
written notice to Parent, if there has been a material breach by Parent of any
representation, warranty, covenant or agreement set forth in the Agreement or
other ancillary agreements, which breach would result in a failure to satisfy
the closing conditions contained in Section 9.3 and has not been cured within
five (5) business days following receipt by Parent of notice of such breach,

         11.4 OUTSIDE DATE. This Agreement may be terminated by Parent alone or
by HT alone by means of written notice if the Effective Time does not occur on
or prior to July 1, 2000; PROVIDED, HOWEVER, that the right to terminate this
Agreement pursuant to the preceding clause will not be available to any party
whose failure to fulfill any obligation under this Agreement has been a
significant cause of, or resulted in, the failure of the Effective Time to occur
on or before such date.

         11.5 EFFECT OF TERMINATION. In the event of termination of this
Agreement by either HT or Parent as provided in this Article, this Agreement
will forthwith become void and have no effect, and there will be no liability or
obligation on the part of Parent, HT, Merger Sub, the Stockholder or their
respective officers or directors, except that (i) the provisions of Sections
8.4, 8.6, 8.7 and 12.2 will survive any such termination and abandonment, and
(ii) no party will be released or relieved from any liability arising from the
willful breach by such party prior to termination of any of its representations,
warranties, covenants or agreements as set forth in this Agreement.

                                   ARTICLE XII

                                  MISCELLANEOUS

         12.1 ENTIRE AGREEMENT. This Agreement, including the exhibits,
schedules and other agreements delivered pursuant to this Agreement contain all
of the terms and conditions agreed upon by the parties relating to the subject
matter of this Agreement and supersede all prior agreements, negotiations,
correspondence, undertakings and communications of the parties, whether oral or
written, respecting that subject matter.

         12.2 GOVERNING LAW; CONSENT TO JURISDICTION. The Merger will be
governed by the MBCL to the extent applicable, and all other aspects of this
Agreement will be governed by the internal laws of the Commonwealth of
Massachusetts. Legal proceedings relating to this Agreement, the agreements
executed in connection with this Agreement or the transactions contemplated
hereby or thereby that are commenced against Parent, Merger Sub or the Surviving
Corporation may be commenced only in the state or federal courts in Boston,
Massachusetts. Any such legal proceedings that are commenced against HT or
against any stockholder of HT may be commenced only in the state or federal
courts in Boston, Massachusetts. Each of the parties hereby consents to the
exclusive jurisdiction of such courts

                                     - 39 -
<PAGE>

(and of the appropriate appellate courts) in any such action or proceeding and
waives any objection to venue laid therein. The foregoing provisions will not be
construed to preclude any party from bringing a counter-claim in any action or
proceeding properly commenced in accordance with the foregoing provisions.
Process in any such action or proceeding may be served on any party anywhere in
the world. Notwithstanding the foregoing, any dispute relating to a claim under
the Escrow Agreement will be resolved in accordance with the arbitration
provisions of the Escrow Agreement.

         12.3 NOTICES. All notices, requests, demands or other communications
which are required or may be given pursuant to the terms of this Agreement will
be in writing and will be deemed to have been duly given: (i) on the date of
delivery if personally delivered by hand, (ii) upon the third day after such
notice is deposited in the United States mail, if mailed by registered or
certified mail, postage prepaid, return receipt requested, (iii) upon the date
scheduled for delivery after such notice is sent by a nationally recognized
overnight express courier or (iv) by fax upon written confirmation (including
the automatic confirmation that is received from the recipient's fax machine) of
receipt by the recipient of such notice:

         IF TO PARENT OR MERGER SUB          Lionbridge Technologies, Inc.
                                             950 Winter Street
                                             Waltham, Massachusetts  02451
                                             Attention:  Rory J. Cowan
                                             Telephone No.:  (781) 434-6000
                                             Fax No.:  (781) 434-6034

                                             WITH COPIES TO:
                                             Testa, Hurwitz & Thibeault, LLP
                                             125 High Street
                                             Boston, Massachusetts 02110
                                             Attention:  George W. Lloyd, Esq.
                                             Kathy A. Fields, Esq.
                                             Telephone No.: (617) 248-7000
                                             Fax No.: (617) 248-7100

         IF TO HT:                           Harvard Translations, Inc.
                                             815 Somerville Ave
                                             Cambridge, MA 02140
                                             Attention:  Chief Executive Officer
                                             Telephone No.: (781) 434-6000
                                             Fax No.:  (781) 434-6034

                                             WITH A COPY TO:
                                             Foley, Hoag & Eliot, LLP
                                             One Post Office Square
                                             Boston, Massachusetts  02109
                                             Attention:  Robert Birnbaum, Esq.
                                             Telephone No.: (617) 832-1106

                                     - 40 -
<PAGE>

                                             Fax No.: (617) 832-7000

         Such addresses may be changed, from time to time, by means of a notice
given in the manner provided in this Section 12.3.

         12.4 SEVERABILITY. If any provision of this Agreement is held to be
unenforceable for any reason, it will be modified rather than voided, if
possible, in order to achieve the intent of the parties to this Agreement to the
extent possible. In any event, all other provisions of this Agreement will be
deemed valid and enforceable to the full extent.

         12.5 SURVIVAL OF REPRESENTATIONS AND WARRANTIES. All representations
and warranties contained in this Agreement, including the exhibits and schedules
delivered pursuant to this Agreement, will survive the Effective Time, but any
claims for breach thereof may only be made within any applicable time limits
specified herein or in the Escrow Agreement.

         12.6 ASSIGNMENT. No party to this Agreement may assign, by operation of
law or otherwise, all or any portion of its rights, obligations, or liabilities
under this Agreement without the prior written consent of HT, Merger Sub, Parent
and Stockholder, which consent may be withheld in the absolute discretion of the
party asked to grant such consent. Any attempted assignment by Merger Sub or
Parent, on the one hand, or by HT, on the other hand, in violation of this
Section 12.6 will be voidable and will entitle HT or Parent, respectively, to
terminate this Agreement at its option.

         12.7 COUNTERPARTS. This Agreement may be executed in two or more
partially or fully executed counterparts each of which will be deemed an
original and will bind the signatory, but all of which together will constitute
but one and the same instrument. The execution and delivery of a Signature Page
to Agreement and Plan of Reorganization in the form annexed to this Agreement,
including a facsimile copy of the actual signature, by any party hereto who will
have been furnished the final form of this Agreement will constitute the
execution and delivery of this Agreement by such party.

         12.8 AMENDMENT. This Agreement may not be amended except by an
instrument in writing executed by HT, Merger Sub, Parent and Stockholder.

         12.9 EXTENSION, WAIVER. At any time prior to the Effective Time, any
party hereto may, to the extent legally allowed: (i) extend the time for the
performance of any of the obligations or other acts of any other party hereto to
the party extending such time, (ii) waive any inaccuracies in the
representations and warranties made to such party contained herein or in any
document delivered pursuant hereto, and (iii) waive compliance with any of the
agreements, covenants or conditions for the benefit of such party contained
herein. Any agreement on the part of a party hereto to any such extension or
waiver will be valid only if set forth in an instrument in writing signed on
behalf of such party.

         12.10 INTERPRETATION. When a reference is made in this Agreement to
Sections, Exhibits or Schedules, such reference will be to a Section, Exhibit or
Schedule to this Agreement unless otherwise indicated. The words "include,"
"includes," and "including" when used therein will be deemed in each case to be
followed by the words "without limitation." The table of contents, index to
defined terms,

                                     - 41 -
<PAGE>

and headings contained in this Agreement are for reference purposes only and
will not affect in any way the meaning or interpretation of this Agreement.

         12.11 KNOWLEDGE. For purposes of this Agreement, the term "KNOWLEDGE"
(including any derivation thereof such as "know" or "knowing" and regardless of
whether such word starts with an initial capital) in reference to HT will mean
the knowledge of the directors and executive officers of HT and the Stockholder.

         12.12 TRANSFER, SALES, DOCUMENTARY, STAMP AND OTHER SIMILAR TAXES. Any
and all transfer, sales, documentary, stamp and other similar Taxes imposed in
connection with the transactions contemplated by this Agreement will be paid by
the stockholders of HT with respect to which such Tax relates. At Parent's
discretion, the amount paid to any Person pursuant to this Agreement will be
reduced by the amount of Taxes payable by such Person pursuant to this Section
12.12. Any amounts so withheld will be promptly remitted to the appropriate
taxing authority.

         (THE REMAINDER OF THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY.)

                                     - 42 -
<PAGE>

                                SIGNATURE PAGE TO
                      AGREEMENT AND PLAN OF REORGANIZATION

         IN WITNESS WHEREOF, Parent, Merger Sub, HT and the Stockholder have
executed this Agreement as of the date first written above.

LIONBRIDGE TECHNOLOGIES, INC.                      HARVARD TRANSLATIONS, INC.

By: ______________________                         By: _________________________
    Name:                                              Name:
    Title:                                             Title:

HT ACQUISITION CORP.

By: ______________________
    Name:

    Title:

STOCKHOLDER:

--------------------------
Robert C. Sprung

                                     - 43 -<PAGE>

                                 LEASE AGREEMENT

This LEASE AGREEMENT, made as of this 14th day of April, 1999, between Ryan
Companies US, Inc., a Minnesota corporation ("Landlord"), and D56, Inc., a
Minnesota corporation ("Tenant");

                                WITNESSETH, THAT

1.1      PREMISES: Landlord, subject to the terms and conditions hereof,
hereby leases to Tenant, its successors and assigns, certain premises
("Premises") consisting of the building to be built at Wilfred Lane North and
Commerce Boulevard, Rogers, Minnesota ("Building"), the land underlying and
contiguous thereto together with any appurtenant easements and all
improvements thereon. The legal description of the land is attached hereto as
Exhibit A. A schematic depiction of the Project is attached hereto as Exhibit
B. The Premises are subject to certain easements, restrictions, reservations
and encumbrances as set forth on Exhibit A (the "PERMITTED EXCEPTIONS").

Landlord represents that it is the fee simple owner of the Premises subject
only to the Permitted Exceptions, and that it will not subject the Premises
to new or additional Permitted Exceptions without the written consent of
Tenant.

1.2      OPTION TO EXPAND INTO ADDITIONAL SPACE: Tenant may from time to time
elect to expand the Building (such expansion referred to as the "Expansion
Space"). Tenant's election shall be exercised by written notice to Landlord
specifying the approximate size, location and general design requirements of
the proposed expansion, delivered no less than one (1) year prior to the date
on which Tenant desires to occupy the Expansion Space (the "Election
Notice"). The area designated Expansion on Exhibit B depicts the maximum
anticipated expansion of the Building.

            (a) Within thirty (30) days of receipt of the Election Notice,
Landlord and Tenant will meet two (2) times to discuss and attempt to agree
upon schematic plans and specifications for the Expansion Space (the
"SCHEMATICS"). Following the written approval of the Schematics by Landlord
and Tenant, Landlord will proceed with the preparation of the "EXPANSION
SPACE OUTLINE PLANS AND SPECIFICATIONS" which will be developed from the
Schematics. The Expansion Space Outline Plans and Specifications will be
submitted to Tenant for its approval within thirty (30) days of said approval
of the Schematics and will contain similar detail as are contained in the
Outline Plans and Specifications attached hereto as Exhibit D.

            Within twenty (20) days following receipt of the Expansion Space
Outline Plans and Specifications, Tenant will either approve the same or
request such changes as it deems appropriate, which changes will then be
incorporated into the Expansion Space Outline Plans and Specifications by
Landlord. Landlord and Tenant will use reasonable efforts to agree upon the
Expansion Space Outline Plans and Specifications within sixty (60) days of
their approval of the Schematics. During the development of the Expansion
Space Outline Plans and Specifications, Landlord will make application for
all required governmental approvals for the Expansion Space, (the "EXPANSION
SPACE PERMITS") and will diligently pursue the issuance of the Expansion
Space Permits. Landlord shall prepare the Schematics, the Expansion Space
Outline Plans and Specifications and the

                                       1

<PAGE>

Expansion Space Final Plans and Specifications (as defined below) at
Landlord's initial cost, but to be included in the Expansion Space Total
Project Cost.

            (b) Upon the approval of the Expansion Space Outline Plans and
Specifications, Landlord will inform Tenant of the proposed increase in Base
Rent attributable to the Expansion Space (the "EXPANSION SPACE BASE Rent")
and the Landlord's "EXPANSION SPACE TOTAL PROJECT COST", which shall include
all costs in the categories identified on Exhibit "C", but not including any
land costs. To determine the Expansion Space Total Project Cost, Landlord or
Landlord's designated general contractor shall solicit bids from no less than
two (2) financially responsible subcontractors in each of the major
subcontract categories, including, by way of example, earthwork concrete,
steel, steel erection, roofing, mechanical and electrical. The Expansion
Space Base Rent, beginning on the date of Substantial Completion of the
Expansion Space and continuing for five (5) years thereafter, shall be equal
to the Expansion Space Total Project Cost, (minus any savings) plus an amount
equal to six percent (6%) of the "EXPANSION SPACE ACTUAL CONSTRUCTION COSTS"
which shall be calculated in the same manner as Actual Construction Costs are
calculated pursuant to Exhibit C but only with respect to the Expansion
Space, and which shall be reduced by the amount of any savings, multiplied by
a commercially reasonable mortgage constant plus fifty (50) basis points. For
purposes of the Expansion Space, the term "Substantial Completion" will have
the same meaning as set forth in Exhibit C. Landlord and Tenant shall
cooperatively make a reasonable effort to secure commercially reasonable
financing containing terms no less favorable to Landlord as borrower than (i)
a twenty (20) year amortization schedule, (ii) an eighty percent (80%) loan
to value ratio and (iii) a mortgage constant no greater than eleven and
one-half percent (11.5%). Tenant shall not be obligated for the payment of
Expansion Space Base Rent, or other charges with respect to the Expansion
Space until the Expansion Space has been Substantially Completed.
At the same time Landlord informs Tenant of the Expansion Space Base Rent and
the Expansion Space Total Project Cost, Landlord shall also advise Tenant
whether, in Landlord's reasonable judgment, the Expansion Space can be
Substantially Completed on or before the date which is five (5) full calendar
years prior to the expiration of the Term, as it may have been previously
extended and, if not, Landlord will advise Tenant when the Landlord estimates
that the Expansion Space will be Substantially Completed.

            (c) If Tenant is dissatisfied with the Expansion Space Total
Project Costs and/or the Expansion Space Base Rent, it may retract its
Election Notice.

            (d) If Tenant elects to proceed to have Landlord construct the
Expansion Space, as specified above, then Landlord and Tenant shall enter
into an amendment to this Lease (the "EXPANSION AMENDMENT") in form and
content reasonably acceptable to Landlord and Tenant, which will be prepared
by Landlord and which will provide as follows:

                  (i)     a summary of the Expansion Space Base Rent; and

                  (ii)    if, pursuant to the Landlord's completion estimate, as
specified in Section 1.2(b) above, the Expansion Space cannot be Substantially
Completed on or before a date which is five (5) full calendar years prior to the
expiration of the Term, as it may have been previously extended, an extension of
the then current Term so that the Term shall expire on the last day of the

                                       2

<PAGE>

month which is five (5) years from the date of Substantial Completion of the
Expansion Space (the "EXPANSION EXTENSION").

            The Expansion Extension shall be in lieu of any portion of the
Term which would have existed upon the date of Substantial Completion of the
Expansion Space; provided, however, the exercise of the Expansion Extension
shall not eliminate any unexercised Extended Terms. The extension of the Term
or any Extended Term due to an Expansion Extension will not adjust the rent
schedule for any space not subject to the Expansion Extension then being
exercised, and the Base Rent for any such space will adjust at the same time
it would have absent such expansion (as though options to extend had been
exercised). In the event that there would not be at least two (2) three (3)
year Extended Terms remaining following the Expansion Extension, the
Expansion Amendment shall also include the addition of a sufficient number of
Extended Terms to provide for at least two (2) three (3) year Extended Terms
following the Expansion Extension.

            (e) Upon the execution by Landlord and Tenant of the Expansion
Amendment, Landlord shall immediately commence the preparation of the
"EXPANSION SPACE FINAL PLANS AND SPECIFICATIONS" to be consistent with the
approved Expansion Space Outline Plans and Specifications, to satisfy any
physical requirements of the site. Landlord shall submit the Expansion Space
Final Plans and Specifications to Tenant for review and approval. Landlord
shall construct the Expansion Space in a good and workmanlike manner,
consistently with the best practices of the industry in accordance with the
Expansion Space Final Plans and Specifications and Landlord agrees to
complete the construction thereof in accordance with all applicable legal
requirements.

            (f) Upon execution of the Expansion Amendment and approval of the
Expansion Space Final Plans and Specifications, Landlord shall, subject to
Excused Delay, (as such term is defined in Section 3.7 of Exhibit C attached
hereto) diligently proceed with the construction of the Expansion Space and
complete the same and deliver possession thereof to Tenant within a
reasonable time thereafter. Landlord will give Tenant written notice of any
such Excused Delay specifying the nature and the period of such Excused Delay
within fifteen (15) days after the occurrence thereof. The time of completion
of said construction shall be extended for the additional time caused by such
Excused Delay.

            (g) During the period of construction of the Expansion Space,
Tenant or its designated agent or agents shall have the right of inspection
and Landlord shall cooperate with Tenant or its designated agent or agents
with respect to any such inspection and facilitate the same as long as such
inspection does not interfere with the work of Landlord in completing the
Expansion Space.

            (h) At least five (5) days prior to Substantial Completion of the
Expansion Space, Landlord and Tenant will agree upon a list of all Punchlist
Items (as such term is defined in Section 3.9 of Exhibit C attached hereto)
not completed in accordance with the Expansion Space Final Plans and
Specifications, and Landlord shall forthwith complete said Punchlist Items.
The acceptance of possession of the Expansion Space by Tenant shall be deemed
conclusively to establish that the Expansion Space has been Substantially
Completed, subject to any Punchlist Items; provided, however, that Tenant may
supplement the Punchlist Items by identifying Punchlist Items which Tenant
establishes were deficiencies in the Expansion Space as of the date of
Substantial Completion, so long as such supplemental Punchlist Items are
identified for Landlord within one hundred twenty (120) days following
Substantial Completion.

                                       3

<PAGE>

            (i) Landlord guarantees the Expansion Space and such other items
as are covered by the Expansion Space Final Plans and Specifications against
defective workmanship and/or defective materials for a period of two (2)
years from the date of Substantial Completion of the Expansion Space.
Landlord does further agree, at its sole cost and expense to repair or
replace any defective item occasioned by defective workmanship and/or
defective materials during said two (2) year period.

            From and after the expiration of the two (2) year guaranty of
Landlord against defective workmanship and materials, Landlord agrees to
cooperate with Tenant in the enforcement by Tenant, at Tenant's sole cost and
expense, of any excess warranties or guaranties of workmanship or materials
given by subcontractors or materialmen that guarantee or warrant against
defective workmanship or materials for a period of time in excess of the two
(2) year period described above and to cooperate with Tenant in the
enforcement by Tenant, at Tenant's sole cost and expense, of any service
contracts that provide service, repair or maintenance to any of the Expansion
Space for a period of time in excess of such two (2) year period. Upon
expiration of the two (2) year guaranty of Landlord, Landlord will assign to
Tenant any then unexpired warranties which Landlord received from any
subcontractors performing work with respect to the Expansion Space.

            (j) Notwithstanding the foregoing, in the event the sum of the
mortgage constant plus fifty (50) basis points is greater than twelve percent
(12%), and Landlord does not elect, at its option, to offer Tenant an
Expansion Space Base Rent constant no greater than twelve percent (12%), then
Tenant shall have the option to purchase the Premises. If Tenant exercises
such option to purchase the Premises, Landlord shall sell the Premises to
Tenant and Tenant shall purchase the Premises from Landlord pursuant to the
terms and conditions contained in Section 1.3 hereof except that the closing
date shall be postponed pending the determination of Fair Market Value to the
extent necessary, and except that the purchase price shall be the greater of
(i) the sum of (a) the Total Project Cost plus (b) the Expansion Space Total
Project Cost for any previous expansions plus (c) the sum of $150,000.00 or
(ii) the Fair Market Value of the Premises as of the date of Tenant's
exercise of this option reduced by the sum of (a) the Rent Credit Amount (as
defined in Section 13.3 of this Lease) not yet realized by Tenant in the form
of a cash payment or as an offset against Base Rent or Additional Rent plus
(b) the amount of any accrued Offsets (as defined in Section 3.2 herein,
other than those included in (a) above). Tenant's option to purchase under
the terms of this Section 1.2(j) shall expire ninety (90) days following
written notice from Landlord as to the Expansion Space Base Rent and the
Expansion Space Total Project Cost.

            The "Fair Market Value" is defined as the cash price which would
be obtained for the Premises, subject to this Lease, in an arm's length
transaction between a willing buyer and a willing seller under no compulsion
to do so. If the parties have not agreed in writing upon the Fair Market
Value within thirty (30) days of Tenant's exercise of its option to purchase,
(the "APPRAISAL PERIOD"), Fair Market Value shall be determined by the
appraisal process described below.

            Within fifteen (15) days after the expiration of the Appraisal
Period, the parties shall either (1) jointly appoint an appraiser for this
purpose or (2) failing this joint action, separately designate a
disinterested appraiser. No person shall be appointed or designated an
appraiser unless he or she has at least five (5) years experience in
appraising major commercial property in the Minneapolis - St. Paul
Metropolitan area and is a member of a recognized society of real estate

                                       4

<PAGE>

appraisers. If, within thirty (30) days after their appointment, the two
appraisers reach agreement on the Fair Market Value, that value shall be
binding and conclusive upon the parties. If the two appraisers thus appointed
cannot reach agreement on the question presented within thirty (30) days
after their appointment, then the appraisers thus appointed shall, within
fifteen (15) days thereafter appoint a third disinterested appraiser having
like qualifications. Within ten (10) days after the appointment of the third
appraiser, the two appraisers appointed by the parties shall each submit to
the third appraiser and to the parties their independent appraisal of the
Fair Market Value of the Premises for the purchase in question. Within thirty
(30) days after receipt of the two independent appraisals, the third
appraiser shall select one of the two appraisals submitted by the two
appraisers appointed by the parties as the appraisal closest to the Fair
Market Value of the Premises. The appraisal of the Fair Market Value so
selected by the third appraiser shall be binding and conclusive upon the
parties. Each party shall pay the fees and expenses of the appraiser
appointed by it and shall share equally the fees and expenses of the third
appraiser. If the two appraisers appointed by the parties cannot agree on the
appointment of the third appraiser within the fifteen (15) day period
referenced above, they or either of them shall give notice of such failure to
agree to the parties and if the parties fail to agree upon the selection of
such third appraiser within ten (10) days after the appraisers appointed by
the parties give such notice, then either of the parties, upon notice to the
other party may request such appointment by the American Arbitration
Association, or on its failure, refusal or inability to act, may apply for
such appointment to the presiding judge of the District Court of Hennepin
County, Minnesota.

         Notwithstanding anything contained herein to the contrary, in the
event Tenant is dissatisfied with the determined Fair Market Value, Tenant
shall have the right, upon written notice to Landlord, to rescind its notice
of its option to purchase the Premises which notice must be given, if at all,
within thirty (30) days of the date Tenant is notified in writing of the Fair
Market Value. In the event Tenant elects to rescind its notice, Tenant shall
promptly reimburse Landlord for the fees and expenses incurred by Landlord
for Landlord's appraiser and Landlord's share of the third appraiser.

1.3      INITIAL OPTION TO PURCHASE: Tenant shall have the further option
to purchase the Premises (i) on the date of Substantial Completion (the
"FIRST OPTION") and (ii) on the last day of the twenty fourth (24th) full
month of the Initial Term (the "SECOND OPTION") (the "Purchase Date"),
provided that as of the Purchase Date no event of default shall have occurred
and be continuing beyond any applicable notice and cure period provided for
under Section 17 herein. Tenant shall exercise its option to purchase by
giving written notice thereof to Landlord not later than forty five (45) days
prior to the Purchase Date, time being of the essence. If Tenant exercises
the First Option, the price to be paid by Tenant shall be the "Final Total
Project Cost" as defined in Exhibit "C", reduced by the sum of (a) the Rent
Credit Amount (as defined in Section 13.3 of this Lease) not yet realized by
Tenant in the form of a cash payment or as an offset against Base Rent or
Additional Rent, plus (b) the amount of any accrued Offsets (other than those
included in (a) above). If Tenant exercises the Second Option, the price to
be paid by Tenant shall be the Final Total Project Cost plus $300,000.00,
reduced by the sum of (a) the Available Gross Rent Credit (as defined in
Section 13.1) of this Lease not yet realized by Tenant in the form of a cash
payment or as an offset against Base Rent or Additional Rent, plus (b) the
amount of any accrued Offsets (other than those included in (a) above). On
the Purchase Date, Tenant shall pay the applicable purchase price to Landlord
and Landlord shall execute and deliver to Tenant a Limited Warranty Deed,
with State Deed Tax paid thereon, conveying fee title to the Premises to
Tenant, it being understood that

                                       5

<PAGE>

the title to the Premises will be free and clear of any Mortgage and shall be
subject only to the following encumbrances:

                  (i)   the Permitted Exceptions;

                  (ii)  any encumbrances resulting from Tenant's failure to keep
                  or perform its obligations under this Lease;

                  (iii) any encumbrances created by Tenant or anyone claiming
                  under Tenant;

                  (iv)  any encumbrances or takings resulting from a proceeding
                  in eminent domain or threat thereof;

                  (v)   any non-monetary encumbrances consented to in writing by
                  Tenant; and

                  (vi)  unpaid taxes and special assessments which are the
                  obligation of Tenant to pay pursuant to this Lease.

            Within ten (10) days after Tenant exercises its option to
purchase, Landlord shall furnish to Tenant a commitment for an ALTA Owner's
Title Insurance Policy covering title to the Premises, with extended coverage
in the amount of the purchase price, reasonably acceptable to Tenant, showing
title to the Premises in Landlord and subject only to the exceptions
described above. Landlord shall simultaneously furnish an as-built survey of
the Premises and Landlord shall pay all costs of the preparation and issuance
of such survey and commitment and any policy issued in connection therewith.
Tenant shall be allowed twenty (20) days after receipt thereof for
examination of title and notifying Landlord in writing of any objections
thereto. If any objection to title is not made and Landlord notified as
herein provided, such objection shall be deemed waived. If objections to
title are made and Landlord is notified thereof as herein provided, Landlord
shall have until the Purchase Date to cure such objections and Landlord shall
use its best efforts to cure any such objections. If such objections are not
cured prior to the Purchase Date, Tenant may at its option (i) elect not to
purchase the Premises, in which event this Lease shall remain in full force
and effect, or (ii) close the purchase in the same manner as if there had
been no title objections, in which event the purchase shall be closed on the
Purchase Date and Landlord shall convey title to the Premises subject to the
matters as to which objections were made but Tenant shall not be deemed to
have waived any rights to damages hereunder, or (iii) attempt to cause such
encumbrances to be removed. However, if Tenant elects alternative (iii)
above, closing shall be postponed until the encumbrances in question are
removed and, if Tenant is unable within a further period of sixty (60) days
to cause such encumbrances to be removed, Tenant may then elect either
alternative (i) or (ii) above. No such postponement shall alter the purchase
price. All costs and expenses incurred by Tenant in causing or attempting to
cause such encumbrances to be removed, including reasonable attorneys' fees,
shall be payable by Landlord. Objections which can be remedied by the payment
of money shall be paid from Landlord's proceeds at the closing. In the event
Landlord defaults in its obligations hereunder, Tenant shall have the right
to seek specific performance.

                                       6

<PAGE>

            If, subsequent to the exercise of Tenant's election to purchase,
but prior to the closing of the subject purchase, any proceedings in
condemnation or eminent domain are commenced, Tenant may elect to rescind its
purchase election by giving written notice to Landlord of such intent within
thirty (30) days following the commencement of such proceedings.

            At closing, Landlord shall deliver to Tenant the following:

                  (a)      Originals or copies of all governmental permits
                           obtained in connection with the construction of
                           Landlord's Work;

                  (b)      A certificate executed by Landlord that the
                           Landlord's Work has been constructed to date in
                           substantial compliance with the applicable Final
                           Plans and Specifications as amended by agreement by
                           the parties;

                  (c)      A limited warranty bill of sale and assignment of all
                           personal property owned by Landlord which is located
                           on the Premises at the time of closing; and

                  (d)      Such additional documents or instruments in form
                           reasonably acceptable to Tenant which are necessary
                           to convey to Tenant all of Landlord's right, title
                           and interest in and to the Premises and any personal
                           property located thereon or appurtenant thereto.

         The Purchase Price shall not be reduced by reason of damages or
destruction by fire or other causes. Landlord shall, however, deliver to
Tenant at closing, all of Landlord's right, title and interest in any
property insurance proceeds arising out of such damage or destruction to the
Premises.

1.4      RIGHT OF FIRST OFFER: If during the term hereof, Landlord elects to
offer the Premises for sale, it shall notify Tenant thereof. Tenant shall
have seven (7) business days thereafter in which to notify Landlord of its
interest to purchase the Premises, time being of the essence. If Tenant so
notifies Landlord of its interest to purchase the Premises, then the purchase
price shall be determined in accordance with the appraisal process described
in Section 1.2 hereof.

         Landlord shall, within fifteen (15) days of the date Landlord is
notified in writing of the Fair Market Value, notify Tenant in writing of the
price for which it is willing to sell the Premises (the "OFFER PRICE"). Tenant
shall have thirty (30) days thereafter in which to notify Landlord of its
agreement to purchase the Premises for the Offer Price, time being of the
essence. If Tenant so notifies Landlord of its agreement to purchase the
Premises, then Landlord shall sell the Premises to Tenant and Tenant shall
purchase the Premises from Landlord pursuant to the terms and conditions
contained in Section 1.3 hereof, except that (a) the purchase price shall be the
Offer Price reduced by the sum of (i) the Rent Credit Amount (as defined in
Section 13.3 of this Lease) not yet realized by Tenant in the form of a cash
payment or as an offset against Base Rent or Additional Rent, plus (ii) the
amount of any accrued offsets (other than those included in (i) above, and (b)
the Purchase Date shall be the date which is ninety (90) days subsequent to the
date of Tenant's notice to Landlord (or, if such date is not a Business Day, the
next Business Day thereafter). The Premises shall be conveyed to Tenant pursuant
to this Section 1.4 free from any mortgage and free from all

                                       7

<PAGE>

title matters other than Permitted Exceptions. If Tenant does not so notify
Landlord of its agreement to purchase the Premises for the Offer Price within
such thirty (30) day period, then Landlord may at any time within one (1)
year after the date of Tenant's notice to Landlord agree to sell the Premises
to a third party (and thereafter close such sale), subject to this Lease, for
a sale price which is not less than one hundred percent (100%) of the Offer
Price. In the event of such a sale of the Premises to a third party, all of
the Tenant's right to purchase the Premises under this Section 1.4 shall
terminate and Tenant shall have no further purchase rights under this Section
1.4. If Landlord does not sell the Premises to a third party for one hundred
percent (100%) of the Offer Price within such twelve (12) month period,
Tenant's First Offer Rights, as herein set forth, will be reinstated.

         Notwithstanding the provisions of this Section, in the event that
Landlord offers to sell the Premises or any part thereof to a Permitted
Affiliate (as defined herein), then such offer to sell shall not be subject
to Tenant's right of first offer as set forth in this Section. Any transfer
of title to the Premises or any part thereof pursuant to the foregoing
provisions of this Section shall not cause Tenant's right of first offer
under this Section to terminate, and the right of first offer set forth in
this Section shall remain in full force and effect with respect to the
Premises following any such transfer. As used above, the term "PERMITTED
AFFILIATE" means (i) any entity controlling, controlled by or under common
control with Landlord; (ii) any (a) officer or director of or (b) member,
partner, shareholder or other equity holder, in either such event with an
entity interest of ten percent (10%) or more in any of the foregoing entities
or (iii) any combination of (i) and (ii).

1.5      OPTION TO TERMINATE PRIOR TO EXPANSION: Provided that the Building
has not been expanded by a total amount exceeding 50,000 square feet,
pursuant to Section 1.2, Tenant shall have the option to terminate this Lease
effective as of either the last day of the seventy fifth (75th) full calendar
month of the Term or the last day of the ninety ninth (99th) full calendar
month of the Term, at Tenant's option. Tenant shall exercise its option by
giving written notice thereof to Landlord not later than ten calendar months
prior to the elected termination date. No later than five (5) calendar months
prior to the elected termination date, Tenant shall pay to Landlord a sum
equal to (i) nine (9) months Base Rent if the elected termination date is the
last day of the seventy fifth (75th) full calendar month of the Term or (ii)
seven (7) months Base Rent if the elected termination date is the last day of
the ninety ninth (99th) full calendar month of the Term. Time is of the
essence. If Tenant fails to timely exercise its right hereunder, or fails to
deliver in a timely manner the sum due, Tenant's notice shall have no force
or effect.

1.6      OPTION TO TERMINATE FOLLOWING EXPANSION:

         A. In the event the Building is expanded by a total amount exceeding
50,000 square feet pursuant to Section 1.2, and Substantial Completion of such
expansion(s) occurs between the last day of the fifteenth (15th) full calendar
month of the Term and the last day of twenty seventh (27th) full calendar month
of the Term, Tenant shall have the option to terminate this Lease as of the last
day of the eighty seventh (87th) full calendar month of the Term. Tenant shall
exercise its option by giving written notice thereof to Landlord not later than
ten (10) full calendar months prior to the elected termination date. No later
than five (5) full calendar months prior to the elected termination date, Tenant
shall pay to Landlord a sum equal to nine (9) months Base Rent.

         B. In the event the Building is expanded by a total amount exceeding
50,000 square feet pursuant to Section 1.2, and Substantial Completion of such
expansion(s) occurs between the

                                       8

<PAGE>

last day of the thirty ninth (39th) full calendar month of the Term and the
last day of fifty first (51st) full calendar month of the Term, Tenant shall
have the option to terminate this Lease as of the last day of the one hundred
eleventh (111th) full calendar month of the Term. Tenant shall exercise its
option by giving written notice thereof to Landlord not later than ten (10)
full calendar months prior to the elected termination date. No later than
five (5) full calendar months prior to the elected termination date, Tenant
shall pay to Landlord a sum equal to seven (7) months Base Rent.

         Simultaneously with Tenant's written notice to Landlord of any
termination right under Section 1.5 or Section 1.6, Tenant shall submit a
Lease termination agreement (the "TERMINATION AGREEMENT") which shall
memorialize the fact that the Lease shall be terminated from and after the
effective date of termination selected by Tenant, and that neither Landlord
or Tenant shall have any further obligations under the Lease except for any
that accrue prior to such effective termination date, and containing any
further provisions reasonably requested by Landlord or Tenant. Landlord shall
promptly execute the Termination Agreement and return the same to Tenant.
Tenant shall have no obligation to pay any termination "fee" referenced
herein until Tenant has received the executed Termination Agreement.

         If Tenant fails to timely exercise its right hereunder, or fails to
deliver in a timely manner the sum due, Tenant's notice shall have no force or
effect.

2.1      TERM: The initial term of this Lease (the "INITIAL TERM") shall
commence on the date of "Substantial Completion" (as defined in Section 3.8
of Exhibit C) of the Landlord's Work (including, for this purpose, the Fire
Protection associated with coverage in and under the Mezzanines, the
mechanical ventilation related to the Mezzanines and the electrical lighting
systems and any basic electrical requirements (convenience power) in and
under the Mezzanine) (collectively, the "MEZZANINE MECHANICALS"), and shall
end on the last day of the one hundred twenty third (123rd) full calendar
month after the date of Substantial Completion. The date of Substantial
Completion of the Landlord's Work and the Mezzanine Mechanicals is sometimes
referred to as the Commencement Date. The Commencement Date may not occur
prior to November 1, 1999.

2.2.     OPTION TO EXTEND: Tenant shall have the option to extend the Term of
this Lease with respect to the entire Premises for five (5) additional terms
of three (3) years each, (collectively, the "Extended Terms", and
individually, an "Extended Term"). Each Extended Term shall be upon the same
terms as provided in this Lease for the Term, except for the Base Rent which
shall be as set forth in Exhibit C for each Extended Term. Tenant shall
exercise its option by giving written notice of such exercise to Landlord,
not less than nine (9) months prior to the end of the Term, or the then
current Extended Term, as the case may be. Should Tenant fail to exercise any
option to extend the term of this Lease within the time provided in this
Section, all of Tenant's rights to further extend the term hereof shall
expire.

3.1      MONTHLY BASE RENT: Tenant agrees to pay to Landlord during the Term
a monthly Base Rent ("Base Rent") as specified on Exhibit C hereto payable on
the first day of each month in advance, without deduction or setoff of any
kind, except as specifically authorized herein, to Landlord and delivered to
Landlord's managing agent , Ryan Properties, Inc., 700 International Centre,
900 Second Avenue South, Minneapolis, Minnesota 55402, or at such other place
as may from time to time be designated by Landlord. Notwithstanding the
foregoing, Tenant shall not be

                                       9

<PAGE>

liable to Landlord for the payment of any Base Rent, Additional Rent or other
sums due hereunder until the Landlord's Work and the Mezzanine Mechanicals
are Substantially Complete.

3.2      OFFSETS: Notwithstanding anything herein to the contrary, Tenant may
offset the following sums against Tenant's obligation to pay Base Rent (but not
Additional Rent):

         (i)      If Tenant demands a "Rent Credit Amount" (as defined in
                  Section 13.3 hereof), said Rent Credit Amount may be offset
                  against Base Rent payable commencing on the Commencement Date;

         (ii)     If Tenant exercises its right of self help under Section 7 of
                  this Lease, any amount spent by Tenant pursuant to that
                  Section 7 may be offset against Base Rent payable commencing
                  on the Commencement Date; and

         (iii)    Any Landlord Payments not received by Tenant as required by
                  Section 4.2 hereof may be offset against Base Rent payable
                  commencing on the Commencement Date.

4.1.     USE:  Tenant may use the Premises for any lawful business use.

4.2      LANDLORD PAYMENTS:  Subject to the conditions that:

         (i)      Within sixty (60) days after the initial occupancy of the
                  Building by Tenant, there are (and will be for the succeeding
                  12 month period) at least sixty (60) full time employees
                  employed at the Premises, and Tenant furnishes Landlord with
                  reasonably satisfactory evidence thereof; and

         (ii)     Within twelve (12) months after the commencement of the
                  Initial Term hereof, Tenant has created (and will maintain for
                  a period of at least 12 months) at least two (2) new permanent
                  full-time employment positions in the State of Minnesota (as
                  opposed to transfers of positions already existing in the
                  State) in addition to those existing on the date hereof, at a
                  wage at least equal to $9.00 per hour, and Tenant furnishes
                  Landlord with reasonably satisfactory evidence thereof; and

         (iii)    Tenant is not in default hereunder,

         then Landlord shall pay the following amounts (the "Landlord Payments")
         to Tenant at the following times:

         (a)                At such time as the conditions contained in (i) and
                           (ii) hereof have been satisfied, an amount equal to
                           the then present value (determined using a discount
                           rate of 10.07% per annum) of the following stream of
                           payments:

<TABLE>
<CAPTION>
                            AMOUNT                            DATE
                            ------                            ----

                           <S>                       <C>
                           $32,225                   August 1, 2001
                           $32,225                   February 1, 2002
                           $32,225                   August 1, 2002

</TABLE>
                                      10

<PAGE>

<TABLE>
                           <S>                       <C>
                           $32,225                   February 1, 2003
                           $32,225                   August 1, 2003
                           $32,225                   February 1, 2004
                           $32,225                   August 1, 2004
                           $32,225                   February 1, 2005
                           $32,225                   August 1, 2005
                           $32,225                   February 1, 2006
</TABLE>

                  (b)(i)    At such time as Tenant no longer has the right
                            to terminate this Lease as of the last day of the
                            75th calendar month, pursuant to either Section 1.5
                            or Section 1.6 hereof, an amount equal to the then
                            present value (determined using a discount rate of
                            10.07% per annum) of the following stream of
                            payments:

<TABLE>
<CAPTION>
                            AMOUNT                            DATE
                            ------                            ----

                           <S>                       <C>
                           $32,225                   August 1, 2006
                           $32,225                   February 1, 2007
</TABLE>

                  (b)(ii)   At such time as Tenant no longer has the right
                            to terminate this Lease as of the last day of the
                            87h calendar month, pursuant to either Section 1.5
                            or Section 1.6 hereof, an amount equal to the then
                            present value (determined using a discount rate of
                            10.07% per annum) of the following stream of
                            payments:

<TABLE>
                           <S>                       <C>
                           $32,225                   August 1, 2007
                           $32,225                   February 1, 2008
</TABLE>

                  (b)(iii)  At such time as Tenant no longer has the right
                            to terminate this Lease as of the last day of the
                            99th calendar month, pursuant to either Section 1.5
                            or Section 1.6 hereof, an amount equal to the then
                            present value (determined using a discount rate of
                            10.07% per annum) of the following stream of
                            payments:

<TABLE>
                           <S>                       <C>
                           $32,225                   August 1, 2008
                           $32,225                   February 1, 2009
</TABLE>

                  (b)(iv)   At such time as Tenant no longer has the right
                            to terminate this Lease as of the last day of the
                            111th calendar month, pursuant to either Section 1.5
                            or Section 1.6 hereof, an amount equal to the then
                            present value (determined using a discount rate of
                            10.07% per annum) of the following stream of
                            payments:

<TABLE>
                           <S>                       <C>
                           $32,225                   August 1, 2009
                           $32,225                   February 1, 2010
</TABLE>

                                      11

<PAGE>

                  (c)      If Tenant exercises an option to terminate this Lease
                           pursuant to Section 1.5 or Section 1.6 hereof, then
                           at the expiration of the term, the total of the
                           payments set forth in (b) above for the dates prior
                           to the expiration date, plus interest thereon at the
                           rate of 10.07% per annum.

                  (d)      At such time as Tenant purchases the Premises from
                           Landlord pursuant to Section 1.3 or Section 1.4
                           hereof, an amount equal to the then present value
                           (determined using a discount rate of 10.07% per
                           annum) of any payments not yet due, but to be made
                           pursuant to (a) and (b) hereof.

5.       OPERATING COSTS: Tenant shall, for the entire Term, pay to Landlord
as an item of additional rent, without any setoff or deduction therefrom,
except as expressly provided in this Lease, all costs ("Operating Costs")
which Landlord may incur in maintaining and operating the Premises during
each calendar year of the Term. "OPERATING COSTS" are defined to include all
reasonable expenses and costs (but not specific costs which are separately
billed to and paid by Tenant) which the Landlord shall pay or become
obligated to pay because of or in connection with the operation and
maintenance of the Premises, including but not limited to all real estate
taxes and annual installments of special assessments due and payable in such
calendar year with respect to the Premises; costs of any contest of such
taxes, including reasonable attorney's fees; management fees, insurance
premiums, utility costs, security costs, costs of wages, maintenance costs
(relating to the Premises including sidewalks, landscaping and parking or
service areas, common areas, service contracts, equipment and supplies) which
for federal tax purposes may be expensed rather than capitalized, all in
accordance with Generally Accepted Accounting Principles ("GAAP"),
consistently applied but exclusive of legal fees, leasing commissions,
depreciation, costs of leasehold improvements and all costs of a capital
nature except as provided in the next sentence and payments of principal and
interest on any mortgages, deeds of trusts, or other security devices
covering the Premises. Operating Costs shall also include the yearly
amortization of capital costs (amortized over the useful life of the
improvement as reasonably determined by Landlord in accordance with GAAP)
incurred by the Landlord for improvements to the Premises required to comply
with any change (after the Commencement Date) in the laws, rules or
regulations of any governmental authority having jurisdiction, or, for
purposes of reducing Operating Costs, which costs shall be amortized over the
useful life of such improvements as reasonably estimated by the Landlord in
accordance with GAAP, but in no event shall the annual amortization be in
excess of the savings.

         Notwithstanding anything contained in this Lease to the contrary,
the following shall apply with respect to real estate taxes and assessments:

         A. Provided Tenant pays when due the taxes and assessments specified
above, Landlord agrees that it shall pay all taxes and installments of
special assessments on or prior to the date the same are due to the taxing
authority and shall provide Tenant with evidence of payment thereof upon
request of Tenant. Tenant shall have no obligation to pay or reimburse
Landlord for any penalties imposed for the late payment of any real estate
tax or assessment, provided Tenant pays the same to Landlord when due under
the terms hereof. Upon any request by Landlord for payment of any taxes or
installments of assessments, Landlord shall provide Tenant with a copy of the
then current real estate tax bill for the Premises.

                                      12
<PAGE>

         B. Landlord shall, at its sole cost and expense (and without
reimbursement as an Operating Cost), pay as and when due all special
improvement or betterment assessments which were pending in existence or
levied or which were due and payable on or prior to the Commencement Date,
and for any assessments for on or off-site improvements which arise, in whole
or in part, due to the development of the Premises. Notwithstanding the
foregoing, Tenant shall be responsible to pay to Landlord, as part of
Operating Costs, installments of assessments due solely to the paving, with
curb and gutter, of Wilfred Lane North and the installation of sanitary
sewers, water lines and storm sewers therein from the center of extended
Commerce Boulevard to the north line of the Premises. The extension of
Commerce Boulevard shall be the sole responsibility of Landlord, and the cost
thereof shall neither be assessed to the Premises nor included in the Actual
Construction Costs.

         C. Whether or not Landlord shall take the benefit of the provisions
of any statute or ordinance permitting any assessment for public betterments
or improvements to be paid over a period of time, Landlord shall,
nevertheless, be deemed to have taken such benefits so that the term "taxes
and assessments" shall include only the current annual installment of any
such assessments.

         D. Tenant shall have the right, at its own cost and expense and in
its own name or in the name of Landlord, to seek to have reviewed, reduced,
equalized, or abated any taxes or assessments payable by Tenant hereunder.
Landlord shall join with Tenant and execute any and all documents,
applications, petitions, instruments, or complaints necessary for any such
protest, contest, review or other proceedings, desired or conducted by
Tenant. During the period of any such proceedings, Tenant shall continue to
pay such taxes and assessments or shall provide to Landlord such security as
Landlord deems reasonably necessary to insure that such payment will be made
all to the end that the interest of Landlord in the Premises shall in no way
be injured or diminished by any such proceedings.

The following shall be excluded from Operating Costs:

         A.       Landlord's costs and obligations under Sections 7.A and 7.D;

         B.       Costs directly or indirectly resulting from or relating to
                  (including repairs, restoration, security measures, emergency
                  or temporary services, inspection and, during the period of
                  such repair or restoration, any increase in operating expenses
                  resulting from) fire, windstorm or other casualty or damage or
                  destruction from any other cause, whether or not insured or
                  insurable;

         C.       Costs of correcting defects in, or inadequacy of, the design
                  or construction of the Building or the materials used in the
                  construction of the Building or in the Building equipment or
                  appurtenances thereto, except that, for the purposes of this
                  paragraph, conditions resulting from ordinary wear and tear
                  and use shall not be deemed defects;

         D.       Financing and refinancing costs, interest or debt or
                  amortization payments on any mortgage or mortgages and rental
                  under any ground or underlying leases or lease, together with
                  all costs incidental thereto;

                                      13
<PAGE>

         E.       Costs of Landlord's general corporate overhead and general
                  administrative expenses (including costs and expenses paid to
                  third parties to collect rents, prepare tax returns and
                  accounting reports and obtain financing);

         F.       Costs resulting from the negligence or misconduct of Landlord
                  or its employees, agents or contractors;

         G.       Travel, entertainment and related expenses incurred by
                  Landlord or its personnel.

         H.       Special assessments levied or pending as of the date of this
                  Lease except for those specifically permitted as Operating
                  Costs as set forth above;

         I.       Reserves for anticipated future expenses;

         J.       Any management and/or administrative fee which, in the
                  aggregate (regardless of how characterized) exceeds 15% of
                  Operating Costs, exclusive of insurance costs and real estate
                  taxes and assessments.

         As soon as reasonably practicable prior to the Commencement Date and
the commencement of each calendar year during the Term, Landlord shall, with
input and direction from Tenant, determine an estimate of, and budget for,
Operating Costs for the ensuing calendar year. All levels of service,
operation and maintenance, to the extent controllable, shall be determined
from time to time by Tenant in its reasonable discretion, but at all times
consistent with similar Premises in the Minneapolis/St. Paul metropolitan
area. The budget, as initially established for any year, shall be adjusted to
reflect Tenant's determinations as to such levels. No expenditure in excess
of any line item in the budget (or which will, with reasonably anticipated
expenses, cause such excess) shall be made without Tenant's consent and an
adjustment to the budget, except in case of emergency where Landlord may take
reasonable necessary action without such prior authorization. Tenant shall
pay, as additional rent hereunder together with each installment of Base
Rent, one-twelfth (1/12th) of estimated Operating Costs less real estate
taxes and installments of special assessments. Real estate taxes and
installments of special assessments shall be due on or before the later of
(a) twenty (20) days after receipt of Landlord's invoice or (b) twenty (20)
days prior to the last date such taxes and installments of special
assessments are due without penalty. As soon as reasonably practicable after
the end of each calendar year during the Term (but in no event more than
ninety (90) days thereafter), Landlord shall furnish to Tenant a statement of
the actual Operating Costs for the previous calendar year, and within twenty
(20) days thereafter Tenant shall pay to Landlord, or Landlord shall credit
to the next rent payments due Landlord from Tenant, as the case may be, any
difference between the actual Operating Costs and the estimated Operating
Costs paid by Tenant. Operating Costs for the years in which this Lease
commences and terminates shall be prorated by multiplying the actual
Operating Costs by a fraction the numerator of which is the number of days of
that year of the Term and the denominator of which is 365.

For a period of one (1) year following Tenant's receipt of Landlord's
statement of actual Operating Costs (provided that if Tenant commences an
audit, as specified below, within such one (1) year period, such period shall
be extended by the amount of time reasonably necessary for Tenant to complete
such audit), Landlord shall keep available for Tenant's inspection and/or
audit complete books and records relating to Operating Costs. During this
period Tenant may

                                      14

<PAGE>

copy, inspect and/or audit Landlord's Operating Costs books and records upon
reasonable notice to Landlord. The audit must be performed during regular
business hours in the offices where Landlord maintains its accounting
records. An assignee may have the right to audit as provided herein, however,
such right shall only apply to the assignee's term pursuant to the Lease. In
the event a discrepancy of five percent (5%) or more is found in favor of
Tenant, Landlord shall pay the cost of such audit. If the audit discloses an
overcharge by Landlord, Landlord shall reimburse Tenant for such overcharge
within twenty (20) days, unless Landlord reasonably and in good faith
disputes the result of the audit.]

6. ADDITIONAL TAXES: Tenant shall pay as additional rent to Landlord,
together with each installment of Base Rent, the amount of any gross receipts
tax, sales tax or similar tax (but excluding therefrom any income, estate,
inheritance, corporate or franchise tax), payable by Landlord.

7. OBLIGATIONS OF LANDLORD: Landlord agrees that Tenant shall quietly enjoy
the Premises in accord with the provisions hereof, subject only to Section
17. Landlord shall:

         A.       Keep the structure of the Building, and all structural
                  components thereof, including without limitation, footings,
                  foundations, columns, exterior walls, interior weight bearing
                  walls, floor and ceiling slabs, and roof (and all elements of
                  the roof, whether structural or non-structural), in good
                  condition and repair, ordinary wear and tear excepted, and
                  make all necessary or appropriate replacements thereto, all at
                  Landlord's sole cost and without inclusion in Operating Costs;
                  and

         B.       Keep all Building systems, including HVAC, life safety, fire
                  suppression sprinkler systems and utility lines and conduits
                  in good condition and repair, ordinary wear and tear excepted,
                  and make all necessary or appropriate replacements thereto.
                  The cost thereof shall be deemed an Operating Cost.

         C.       Provide mains and conduits to supply water, gas, electricity
                  and sanitary sewer service to the Premises; and

         D.       Consistent with the budget approved by Tenant, operate,
                  maintain and manage the Premises, including grounds and
                  parking areas in a manner reasonably satisfactory to Tenant.
                  All such maintenance which is provided by Landlord shall be
                  provided as reasonably necessary for the comfortable use and
                  occupancy of the Premises, upon the condition that the
                  Landlord shall not be liable for damages for failure to do so
                  due to causes beyond its reasonable control; and

         E.       Maintain in full force and effect during the term hereof, a
                  policy of all-risk insurance, including Difference in
                  Conditions, insuring the improvements for their full
                  replacement value.

                                      15

<PAGE>

         It is understood that Landlord does not warrant that any of the
services and utilities referred to above will be free from interruption from
causes beyond the reasonable control of Landlord. Such interruption of
service or utilities shall never be deemed an eviction or disturbance of
Tenant's use and possession of the Premises or any part thereof or render
Landlord liable to Tenant for damages by abatement of rent or otherwise or
relieve Tenant from performance of Tenant's obligations under this Lease,
provided Landlord uses all reasonable efforts to restore such services and
utilities as soon as possible.

         Tenant may, at its option, upon no less than ninety days written notice
to Landlord, elect to perform obligations of Landlord contained in Section 7B,
7C, 7D and 7E. Upon such election, Tenant shall provide Landlord with
verification of its performance in a form reasonably satisfactory to Landlord.

         In the event Landlord shall be in default of any of the terms and
conditions of this Lease then, after Tenant has sent a written notice to
Landlord of such default and Landlord and the holder of any mortgage against
the Premises (but only if Tenant has been previously notified of the
existence of such mortgage) has failed to cure such default within thirty
(30) days after Landlord's receipt of such written notice, Tenant shall have
the right to cure such default; provided, however, that if the failure set
forth in Tenant's written notice is such that it requires more than thirty
(30) days to correct, Tenant shall not be entitled to exercise the foregoing
self-help right if Landlord (i) promptly and diligently commences curing the
failure within thirty (30) days after the written notice is received by
Landlord and (ii) diligently prosecutes to cure to completion such default.
Notwithstanding the foregoing sentence, emergency repairs which are
Landlord's responsibility pursuant to a specific provision of this Lease and
which shall be necessary to prevent imminent injury or damage to persons or
Tenant's property may be made by Tenant after Tenant has notified Landlord of
the need for such emergency repair, if such notice is reasonably practical
under the circumstances, in Tenant's reasonable opinion, and Landlord has
failed to commence such repair within such period of time as is reasonable
under the circumstances. If notice is not reasonably practical under the
circumstances, Tenant may make such repairs without notice. Notwithstanding
the foregoing provisions, despite such notices and the expiration of such
cure periods, except as expressly provided in this Lease, no rent or other
payments due from Tenant hereunder may be offset by Tenant, and Tenant shall
have no right to perform any obligation of Landlord. In the event Tenant has
exercised a self-help right pursuant to the foregoing provisions of this
Section 7, Landlord shall reimburse Tenant for its reasonable out-of-pocket
expenditures within thirty (30) days of presentation of invoice in detail
reasonably satisfactory to Landlord together with interest from the date that
is twenty (20) days following presentation of invoice until the date such
charges have been paid at an annual equal to the rate specified in Section 22
herein.

8.       COVENANTS OF TENANT: Tenant agrees that it shall:

         A.       Give Landlord access to the Premises at all reasonable times,
                  without charge or diminution of rent or interference with
                  Tenant's business, to enable Landlord to examine the same and
                  to make such repairs as Landlord may deem advisable, and
                  during the nine (9) months prior to the expiration of the
                  Term, to exhibit the Premises to prospective tenants and to
                  place upon the Project or Premises any usual or ordinary "For
                  Lease" signs.

                                      16

<PAGE>

         B.       Upon the termination of this Lease in any manner whatsoever,
                  remove Tenant's personal property and such of its equipment
                  and trade fixtures as it desires and those of any other person
                  claiming under Tenant, and quit and deliver up the Premises to
                  Landlord peaceably and quietly in as good order and condition
                  as the same are now in or hereafter may be put in by Landlord
                  or Tenant, reasonable use and wear thereof and repairs which
                  are Landlord's obligation and damage by fire or other casualty
                  excepted. Goods and effects not removed by Tenant at the
                  termination of this Lease, however terminated, shall be
                  considered abandoned and Landlord may dispose of the same as
                  it deems expedient. Tenant shall not be required to repair
                  damage to the Premises caused by removal of such items
                  provided that it uses reasonable means to remove the same.

         C.       Except as permitted herein, not assign this Lease or sublet
                  all or any part of the Premises voluntarily, involuntarily or
                  by operation of law, without first obtaining Landlord's
                  written consent thereto. Landlord shall, within ten (10) days
                  of its receipt of Tenant's request, approve or reject the
                  assignment or sublease and, if rejected, Landlord shall
                  specify its reason(s) for withholding approval. Landlord's
                  failure to respond within ten (10) days shall be deemed
                  approval. Landlord's consent will not be withheld provided
                  that (i) the proposed use of the assignee or sublessee is not
                  inconsistent with the use specified in Section 4.1 herein;
                  (ii) such assignee (but not any sublessee) shall assume in
                  writing the performance of the covenants and obligations of
                  Tenant hereunder which arise after the effective date of the
                  assignment; and (iii) a fully executed copy of any such
                  assignment or sublease shall be delivered to Landlord within
                  ten (10) days after the execution thereof , but the making of
                  such assignment or sublease shall not be deemed to release
                  Tenant from the payment and performance of any of its
                  obligations under this Lease.

                  Notwithstanding anything in this Lease to the contrary, Tenant
                  may, without consent of Landlord, at any time assign or
                  otherwise transfer this Lease or any portion thereof to any
                  parent, subsidiary or affiliate corporation or entity; or any
                  corporation resulting from the consolidation or merger of
                  Tenant into or with any other entity, or to any person, firm,
                  entity or corporation acquiring a majority of Tenant's issued
                  and outstanding capital stock or a substantial part of
                  Tenant's physical assets, or at any time form a privately-held
                  corporation or subsequently make a public offering of its
                  stock. As used herein, the expression "affiliate corporation
                  or entity" means a person or business entity, corporation or
                  otherwise, that directly or indirectly through one or more
                  intermediaries, controls or is controlled by, or is under
                  common control with Tenant. The word "control" means the right
                  and power, direct or indirect, to direct or cause the
                  direction of the management and policies of an ownership or
                  voting securities, by contract or otherwise. Further,
                  notwithstanding anything in this Lease to the contrary, the
                  following shall not be deemed an assignment or violation of

                                      17

<PAGE>

                  this Lease or give rise to any right of Landlord to terminate
                  this Lease: (a) any public offering of stock of Tenant or
                  Tenant's parent company, if any; or (b) the conversion of
                  Tenant or Tenant's parent company, if any, from a publicly
                  held corporation to a privately held corporation. In addition,
                  any change in ownership of stock of Tenant shall not be
                  considered an assignment of this Lease.

         D.       Tenant may, at its sole expense, erect exterior signage and a
                  decorative Building facade not in excess of that permitted by
                  applicable code and regulation for the Premises.

         E.       Not do any act which may make void or voidable any insurance
                  on the Premises, or which may render an increased or extra
                  premium payable for any insurance deemed necessary or
                  advisable by Landlord, provided, however, that upon notice
                  from Landlord, Tenant may elect to pay such additional cost.

         F.       Tenant shall not make structural changes or alterations to the
                  Premises without the prior written approval of Landlord, which
                  approval shall not be unreasonably withheld or delayed.
                  Landlord agrees to cooperate with Tenant in obtaining licenses
                  and permits to make such alterations from the applicable
                  governmental authorities.

                  Tenant may, at its own cost and expense, without the prior
                  approval of Landlord make non-structural changes to the
                  Premises, including but not limited to, mechanical system,
                  electrical system, HVAC, installation of fixtures and
                  equipment, painting, papering or changing floor coverings in
                  and to the interior of the Premises, provided that the
                  structural integrity of the Building shall not be adversely
                  affected or diminished.

                  All fixtures, equipment and property of any nature which may
                  be installed or placed in or upon the Premises by Tenant shall
                  remain the property of Tenant. Landlord waives any right or
                  lien it may have in said fixtures, equipment and property.
                  Tenant may assign, lien, encumber, mortgage or create a
                  security interest in or upon its equipment, fixtures or other
                  property in the Premises without the consent of Landlord. Upon
                  the request of Tenant, Landlord agrees to provide Tenant,
                  within ten (10) days of each such request, a written waiver in
                  form reasonably satisfactory to Landlord and Tenant evidencing
                  Landlord's waiver of any rights it has or may have in Tenant's
                  fixtures, equipment and other property.

                  All alterations, additions or improvements (including
                  carpeting or other floor covering which has been glued or
                  otherwise affixed to the floor) which may be made by either of
                  the parties hereto upon the Premises, shall be the property of
                  Landlord, and shall remain upon and be surrendered with the
                  Premises, as a part thereof, at the termination of this Lease.
                  Notwithstanding the foregoing, office furniture, trade
                  fixtures and

                                      18

<PAGE>

                  equipment (even if bolted or fastened to the Building for
                  stabilization purposes) shall be the property of Tenant and
                  may be removed by Tenant and the termination of this Lease.

         G.       Except for the initial construction which is the obligation of
                  Landlord under Exhibits "C" and "D", and except for any other
                  work performed by Landlord on the Premises including, without
                  limitation, any expansion of the Building, keep the Premises
                  free from any mechanics', materialmen's, contractors' or other
                  liens arising from, or any claims for damages growing out of,
                  any work performed, materials furnished or obligations
                  incurred by or on behalf of Tenant.

                  Tenant shall have the right to contest any such lien, in which
                  event such lien shall not be considered a default under this
                  Lease until the existence of the lien has been finally
                  adjudicated and all appeal periods have expired. Tenant shall
                  indemnify and hold harmless Landlord from and against any such
                  lien, or claim or action thereon, reimburse Landlord promptly
                  upon demand therefor by Landlord for costs of suit and
                  reasonable attorneys' fees incurred by Landlord in connection
                  with any such lien, claim or action, and, upon written request
                  of Landlord if Landlord reasonably deems itself insecure with
                  the prospect for payment by Tenant, provide Landlord with a
                  bond, letter of credit, cash deposit or other reasonable
                  security in an amount necessary to obtain a release of the
                  Premises from such lien if the lien claimant ultimately
                  prevails.

         H.       Tenant shall, at its own expense, comply with the
                  requirements, as to Tenant's particular use, of insurance
                  underwriters and insurance rating bureaus and governmental
                  authorities having jurisdiction.

         I.       Maintain in full force and effect during the term hereof, a
                  policy of public liability insurance under which Landlord is
                  named as additional insured. The minimum limits of liability
                  of such insurance shall be $5,000,000.00 combined single limit
                  as to bodily injury and property damage. Tenant agrees to
                  deliver a certificate of insurance evidencing such coverage to
                  Landlord. Such policy shall contain a provision requiring
                  thirty (30) days written notice to Landlord before
                  cancellation of the policy can be effected.

9.       AMERICANS WITH DISABILITIES ACT: The parties agree that the liabilities
and obligations of Landlord and Tenant under that certain federal statute
commonly known as the Americans With Disabilities Act as well as the regulations
and accessibility guidelines promulgated thereunder as each of the foregoing is
supplemented or amended from time to time (collectively, the "ADA") shall be
apportioned as follows:

         A.       If the Premises as initially constructed as Landlord's
                  responsibility does not conform to the requirements of the
                  ADA in effect at the time of Substantial Completion
                  thereof, then in any such case such nonconformity shall be
                  promptly made to comply by Landlord at its sole expense.

                                      19

<PAGE>

         B.       From and after the Commencement Date of the Lease, Tenant
                  covenants and agrees to conduct its operations within the
                  Premises in compliance with the ADA.

10.      INTENTIONALLY OMITTED.

11.      CASUALTY LOSS: If the Building is damaged in part or whole from any
cause and the Building can be substantially repaired and restored within the
Repair Period (as defined below) from the date of the damage using standard
working methods and procedures, Landlord shall at its expense promptly and
diligently repair and restore the Building, including all leasehold
improvements, to substantially the same condition as existed before the
damage. This repair and restoration shall be made promptly and diligently,
subject only to delays by causes beyond Landlord's reasonable control. As
soon as reasonably possible and in any event within thirty (30) days after
the damage, Landlord shall notify Tenant in writing of the number of days
reasonably estimated by Landlord to complete repairs from the date of the
damage. As used herein, the "REPAIR PERIOD" means a period of three hundred
and sixty-five (365) days.

If the Building cannot be repaired and restored within the Repair Period,
then either party may, within ten (10) days after the date Tenant receives
Landlord's notice of the estimated repair completion period as provided
above, cancel the Lease by giving notice to the other party. If Landlord does
not commence repairs within 30 days after the damage or continue to prosecute
such repair continuously with reasonable diligence, or if the Building is not
repaired and restored within the Repair Period, then Tenant may cancel the
Lease at any time thereafter and prior to completion of the repair. Tenant
shall not be able to cancel this Lease if its willful misconduct caused the
damage unless Landlord is not promptly and diligently repairing and restoring
the Premises.

The Base Rent and Additional Rent shall abate to the extent fair and
equitable and the abatement shall include any period that Tenant is unable to
occupy or use the Building, or its occupancy or use is materially adversely
affected by reason of any casualty or cause. The abatement shall consider the
nature and extent of interference to Tenant's ability to conduct business in
the Premises and the need for access and essential services. The abatement
shall continue from the date the damage occurred to the date Landlord
completes the repairs and restoration, or until Tenant again uses the
Premises or the part rendered unusable, whichever is first.

Notwithstanding anything else in Section 11, Landlord is not obligated to
repair or restore damage to Tenant's trade fixtures, furniture, equipment, or
other personal property.

If the Lease is in the last twenty four (24) months of its Term when
"material" damage to the Building occurs, either party may elect to terminate
this Lease provided that Landlord's election to terminate shall be vitiated
if Tenant gives notice within ten (10) days after receipt of notice of such
cancellation from Landlord of its election to extend the Term of the Lease
for the next available Extended Term, if any. Material is defined as costing
more than 25% of the replacement cost of the Building. To cancel, Landlord
must give notice to Tenant within ten (10) days after the Landlord knows of
the damage and Tenant must give notice within ten (10) days of receipt of
notice from Landlord as to whether or not the damage is material, which
notice Landlord shall give to Tenant within thirty (30) days after the
damage. The notice must specify the cancellation date, which shall be at
least thirty (30) but not more than sixty (60) days after the date notice is
given.

                                      20

<PAGE>

12.      CONDEMNATION: If the entire Premises is taken by eminent domain or
transferred under threat of such taking, this Lease shall automatically
terminate as of the date of taking. If a portion of the Premises, or portion
of the Building, or good and sufficient access thereto or a material portion
of the parking, is taken by eminent domain and it is unfeasible, in Tenant's
reasonable judgment, for Tenant to continue to operate its business in the
portion of the Premises remaining, Tenant shall have the right to terminate
this Lease as of the date of taking by giving written notice thereof to
Landlord within ninety (90) days after the date of taking. If a material
portion of the Building is taken by eminent domain (i.e. more than
twenty-five percent (25%), Landlord shall have the right to terminate this
Lease as of the date of taking by giving written notice thereof to Tenant
within ninety (90) days after the date of taking. If neither Landlord nor
Tenant elects to terminate this Lease, Landlord shall, at its expense,
restore the Premises, including any improvements or other changes made
therein by Tenant, to as near the condition which existed immediately prior
to the date of taking as reasonably possible, and to the extent that the
Premises or the Building , including the access thereto or the use thereof by
Tenant is adversely affected, the rent shall equitably abate. All damages
awarded for a taking under the power of eminent domain shall belong to and be
the exclusive property of Landlord, whether such damages be awarded as
compensation for diminution in value of the leasehold estate hereby created
or to the fee of the Premises; provided, however, that Landlord shall not be
entitled to any separate award made to Tenant for the value and cost of its
personal property and fixtures or for relocation benefits.

13.1     DELAY IN COMPLETION: If "Phase I" (as defined on Exhibit "C") of the
Landlord's Work is not "Substantially Complete" (as defined on Exhibit "C")
by August 23, 1999, the Landlord will be in default hereunder (a "PHASE I
COMPLETION DEFAULT").

If "Phase II" (as defined on Exhibit C) of the Landlord's Work is not
Substantially Complete by October 15, 1999, the Landlord will be in default
hereunder (a "PHASE II COMPLETION DEFAULT").

If the entirety of the Landlord's Work (including the Mezzanine Mechanicals)
is not Substantially Complete by March 1, 2000, the Landlord will be in
default hereunder (a "SUBSTANTIAL COMPLETION DEFAULT").

If Phase I of the Landlord's Work is Substantially Complete by July 5, 1999
and if Phase II of the Landlord's Work is Substantially Complete by August 1,
1999 and if the entirety of the Landlord's Work (including the Mezzanine
Mechanicals) is Substantially Complete by December 1, 1999, then Landlord
will have earned a "SUCCESS FEE" in the amount of $100,000.00 which will be
included in the calculation of Final Project Cost as set forth in Section 2.1
of Exhibit C to this Lease.

All dates in this Section 13.1 will be adjusted one (1) day for each day of
"Excused Delay" (as set forth on Exhibit "C").

13.2     REMEDY FOR DELAYED COMPLETION. In the event of a Phase I Completion
Default, Tenant may terminate this Lease by giving notice of such termination
to Landlord at any time following August 23, 1999 and prior to 5:00 p.m. on
August 30, 1999. In the event of a Phase II Completion Default, Tenant may
terminate this Lease by giving notice of such termination to Landlord at any
time following October 15, 1999 and prior to 5:00 p.m. on October 22, 1999.
In

                                      21

<PAGE>

the event of a Substantial Completion Default, Tenant may terminate this
Lease by giving notice of such termination to Landlord at any time following
March 1, 2000 and prior to 5:00 p.m. on March 8, 2000. In the event that
Tenant gives any such termination notice, this Lease shall, upon receipt of
that notice, be deemed terminated and of no further force and effect and
neither party shall, following such termination, have further liability to
the other by reason hereof or by reason of that certain Interim Agreement
between the parties dated January 28, 1999, as amended other than as set
forth in the immediately following sentence. Within five (5) days of Tenant's
notice to terminate this Lease, Landlord will pay Tenant $400,000.00 (the
"TERMINATION PAYMENT") to assist Tenant in paying the cost of removing
Tenant's fixtures and equipment from the Premises and other costs associated
with the failure to complete Landlord's Work. The parties agree that the
actual damages which will be incurred by Tenant on account of a Phase I
Completion Default, a Phase II Completion Default or a Substantial Completion
Default will be significant and very difficult to calculate and have,
therefor, agreed upon the Termination Payment as a liquidated sum to
compensate Tenant for such damage. Such termination, if exercised by Tenant,
and the Landlord's payment of the Termination Fee shall be Tenant's sole
remedy for Landlord's failure to Substantially Complete the Landlord's Work
(or any Phase thereof) as herein required.

If Phase I of the Landlord's Work is not Substantially Complete by July 5, 1999,
or if Phase II of the Landlord's Work is not Substantially Complete by August 1,
1999 or if the entirety of the Landlord's Work (including the Mezzanine
Mechanicals) is not been Substantially Complete by December 1, 1999, and
provided that Tenant has not terminated this Lease as herein provided, Tenant
may exercise the remedy provided for in Section 13.3 hereof. If Tenant does
exercise the remedy provided for in Section 13.3, such exercise shall be
Tenant's sole remedy for Landlord's failure to Substantially Complete the
Landlord's Work, or any Phase thereof, as herein required.

13.3     SATISFACTION GUARANTY: Landlord has delivered a "SATISFACTION
GUARANTY" to Tenant in the amount of Three Hundred Thousand and 00/100
($300,000.00) Dollars. In the event Phase I is not Substantially Complete by
July 5, 1999, or Phase II is not Substantially Complete by August 1, 1999 or
Landlord's Work is not Substantially Complete by December 1, 1999, the amount
of the Satisfaction Guaranty will be deemed to be $400,000.00. Landlord and
Tenant agree that Tenant may make demand for payment under the Satisfaction
Guaranty if, for any reason, Tenant is dissatisfied with Landlord's
performance hereunder (including, without limitation, the circumstances
addressed in the immediately preceding paragraph). If Tenant makes such
demand for payment, the amount demanded by Tenant (the "RENT CREDIT AMOUNT")
will be treated in the manner set forth in Section 2.5 of Exhibit C to this
Lease. If Tenant is dissatisfied with Landlord's performance hereunder, the
parties acknowledge Tenant's damages on account of that dissatisfaction will
be difficult to measure. If, under those circumstances, the Tenant makes a
demand for a Rent Credit Amount, the parties agree that the Rent Credit
Amount demanded by Tenant (up to the maximum amount of $300,000.00) will be
deemed a reasonable liquidated sum intended to compensate Tenant for such
damages.

All dates in this Section 13.3 will be adjusted one (1) day for each day of
Excused Delay (as set forth in Exhibit C).

14.      LIABILITY AND INDEMNITY: Save for its negligence and willful acts
and that of its agents, Landlord shall not be responsible or liable to Tenant
for any loss or damage (i) that may be occasioned by or through the acts or
omissions of persons occupying any part of the Building or

                                      22

<PAGE>

any persons transacting any business in or about the Building or persons
present in or about the Building for any other purpose or (ii) for any loss
or damage resulting to Tenant or its property from burst, stopping or leaking
water, sewer, sprinkler or steam pipes or plumbing fixtures or from any
failure of or defect in any electric line, circuit or facility. Subject to
Section 15, Tenant shall defend, indemnify and save Landlord harmless from
and against all liabilities, damages, claims, costs, charges, judgments and
expenses, including, but not limited to, reasonable attorneys' fees, which
may be imposed upon or incurred or paid by or asserted against Landlord, the
Premises or any interest therein or in the Building by reason of or in
connection with any negligent or tortious act on the part of Tenant or any of
its agents, contractors, servants, employees, licensees or invitees, any
accident, injury, death or damage to any person or property occurring in the
Premises or any part thereof, or any default of Tenant of its obligations
under this Lease provided, however, that nothing contained in this paragraph
shall be deemed to require Tenant to indemnify Landlord with respect to any
negligence or tortious act or omission committed by Landlord or its agents or
any other tenant, occupant, licensee or invitee, or to any extent prohibited
by law.

Subject to Section 15, Landlord shall defend, indemnify and save Tenant
harmless from and against all liabilities, damages, claims, costs, charges,
judgments and expenses, including, but not limited to, reasonable attorneys'
fees, which may be imposed upon or incurred or paid by or asserted against
Tenant, the Premises or any interest therein or in the Building by reason of
or in connection with any negligent or tortious act on the part of Landlord
or any of its agents, contractors, servants, employees, licensees or
invitees, any accident, injury, death or damage to any person or property
occurring in the Premises or any part thereof, or any default by Landlord of
its obligations under this Lease, provided, however, that nothing contained
in this paragraph shall be deemed to require Landlord to indemnify Tenant
with respect to any negligence or tortious act or omission committed by
Tenant or its agents or any other tenant, occupant, licensee or invitee, or
to any extent prohibited by law.

15.      MUTUAL RELEASE/WAIVER OF SUBROGATION: Each of Landlord and Tenant
hereby releases the other from any and all liability or responsibility to the
other or anyone claiming through or under them by way of subrogation or
otherwise for any loss or damage to property caused by any of the all risk
casualties insurable under an all risk property insurance policy, even if
such casualty shall have been caused by the fault or negligence of the other
party, or anyone for whom such party may be responsible.

16.1     HAZARDOUS SUBSTANCES: Tenant shall at all times and in all respects
comply with all federal, state and local laws, ordinances and regulations
("HAZARDOUS MATERIALS LAWS") relating to the industrial hygiene,
environmental protection or the use, analysis, generation, manufacture,
storage, presence, disposal or transportation of any oil, petroleum products,
flammable explosives, asbestos, urea formaldehyde, polychlorinated biphenyls,
radioactive materials or waste, or other hazardous toxic, contaminated or
polluting materials, substances or wastes, including without limitation any
"hazardous substances", "hazardous wastes", "hazardous materials" or "toxic
substances" under any such laws, ordinances or regulations (collectively,
"HAZARDOUS MATERIALS").

         Tenant shall at its own expense procure, maintain in effect and
comply with all conditions of any and all permits, licenses and other
governmental and regulatory approvals required for Tenant's use of the
Premises, including without limitation, discharge of (appropriately treated)

                                      23
<PAGE>

materials or waste into or through any sanitary sewer system serving the
Premises. Tenant shall in all respects, handle, treat, deal with and manage
any and all Hazardous Materials in, on, under or about the Premises in
complete conformity with all applicable Hazardous Materials Laws and prudent
industry practices regarding the management of such Hazardous Materials.
Tenant may utilize such Hazardous Materials as are used by Tenant in the
ordinary course of its business so long as Tenant complies with the
requirement hereof. Upon written notice from Landlord requesting the identity
of such substances or materials, Tenant will provide Landlord with a list of
same. If any lender or governmental agency shall ever require testing to
ascertain whether or not there has been any release of Hazardous Materials,
then the reasonable costs thereof shall be reimbursed by Tenant to Landlord
upon demand as additional charges if such requirement applies to the Premises
and if the results of such testing confirm that Hazardous Materials are
present on the Premises in violation of the provisions hereof and that Tenant
has caused such release of Hazardous Materials at the Premises. In addition,
Tenant shall certify on a reasonable basis from time to time at Landlord's
request concerning Tenant's best knowledge and belief, without the necessity
of inquiry, regarding the presence of Hazardous Materials brought by Tenant
on to the Premises. Tenant shall indemnify Landlord in the manner elsewhere
provided in this Lease from any violation by Tenant.

16.2     To Landlord's knowledge as of the date hereof and as of the
Commencement Date, Landlord is not aware of any Hazardous Materials which
exist or are located on or in the Premises. Further, Landlord represents to
Tenant that: (i) to the best of its knowledge, Landlord has not caused the
generation, storage or release of Hazardous Materials upon the Premises; (ii)
any Hazardous Materials located on the Premises during construction of the
Improvements will, by the Commencement Date, be removed therefrom in
compliance with Hazardous Materials Laws; and (iii) the Improvements will
contain no asbestos or asbestos-containing materials. Landlord will indemnify
Tenant from any violation by Landlord of its obligations under this Section
16.2.

17.      DEFAULT: Tenant hereby agrees that in case Tenant shall default in
making its payments hereunder or any of them or in performing any of the
other agreements, terms and conditions of this Lease and such default
continues for five days after written notice thereof as to the payment of
Base Rent or Additional Rent (a "Monetary Default") or thirty (30) days (or
such longer period as Tenant, acting diligently, may reasonably require)
after written notice thereof as to all other defaults, then, in any such
event, Landlord, in addition to all other rights and remedies available to
Landlord by law or by other provisions hereof, may after five days written
notice, with due process, re-enter immediately into the Premises and remove
all persons and property therefrom, and, at Landlord's option, annul and
cancel this Lease as to all future rights of Tenant and Tenant hereby
expressly waives the service of any notice in writing of intention to
re-enter as aforesaid (other than the notices specified above). Tenant
further agrees that in case of any such termination Tenant will indemnify the
Landlord against all loss of rents and other actual pecuniary loss which
Landlord incurs by reason of such termination, including, but not being
limited to, reasonable costs of restoring and repairing the Premises as
required by this Lease, costs of renting the Premises to another tenant, loss
or diminution of rents and other damage which Landlord may incur by reason of
such termination, and all reasonable attorney's fees and expenses incurred in
enforcing any of the terms of the Lease. Neither acceptance of rent by
Landlord, with or without knowledge of breach, nor failure of Landlord to
take action on account of any breach hereof or to enforce its rights
hereunder shall be deemed a waiver of any breach, and absent written notice
or consent, said breach shall be a continuing one.

                                      24
<PAGE>

18.      NOTICES: All bills, statements, notices or communications which
Landlord may desire or be required to give to Tenant shall be deemed
sufficiently given or rendered if in writing and sent by registered or
certified mail, or sent by a nationally recognized overnight courier service
addressed to Tenant at One Village Place, 6436 City West Parkway, Eden
Prairie, Minnesota 55344, or, as to Monetary Default, by facsimile, with a
copy to Jack A. Rosberg, Esq., Parsinen, Kaplan, Levy, Rosberg & Gotlieb,
P.A., Suite 1100, 100 South Fifth Street, Minneapolis, Minnesota 55402. The
giving of such notice or communication shall be deemed to be the third (3rd)
day following the time when the same is deposited in the mail or the day
following deposit with such overnight courier as herein provided or, as to
notice by facsimile, upon receipt. Any notice by Tenant to Landlord must be
served by registered or certified mail, or sent by a nationally recognized
overnight courier service addressed to Landlord at the address where the last
previous rental hereunder was payable, or in case of subsequent change upon
notice given, to the latest address furnished, and the giving of such notice
shall be deemed to occur in the same manner as notices from Landlord to
Tenant as specified above. Either Landlord or Tenant may, upon ten (10) days
prior written notice to the other as herein provided, change its address for
notices under this Lease.

19.      HOLDING OVER: Should Tenant continue to occupy the Premises after
expiration or termination for any reason of the Term or any renewal or
renewals thereof such tenancy shall be from month to month and in no event
from year to year or for any longer term, and shall be on all the terms and
conditions hereof applicable to a month to month tenancy except that Base
Rent shall equal one hundred percent (100%) if in the Initial Term (and one
hundred twenty-five percent (125%) if in an Extended Term) of the Base Rent
payable at the time of such expiration or termination. In addition, Tenant
shall continue to pay Operating Costs. Nothing in this Section 19, however,
shall prevent Landlord from removing Tenant forthwith and seeking all
remedies available to Landlord in law or equity.

20.      SUBORDINATION: Subject to the non-disturbance provided for below,
the rights of Tenant shall be and are subject and subordinate at all times to
the lien of any first mortgage now or hereafter in force against the
Premises, and Tenant shall, within twenty days (20) after request, execute
such further instruments subordinating this Lease to the lien of any such
mortgage as shall be requested by Landlord, which shall include agreement by
Tenant to attorn to the holder of such mortgage, covenant of nondisturbance
of Tenant's occupancy by such holder in the event that such holder, its
successors or assigns, succeeds to the interest of Landlord and such holder
consent to the application of insurance proceeds to restoration of casualty
loss damage, subject to such reasonable conditions as such holder may impose.
All such instruments shall be in form and substance satisfactory to Landlord
and Tenant, both acting reasonably.

21.      ESTOPPEL CERTIFICATE: Tenant and Landlord shall each at any time and
from time to time, upon not less than ten (10) days prior written notice from
the other, execute, acknowledge and deliver to the other and any other
parties designated by the other, a statement in writing certifying (a) that
this Lease is in full force and effect and is unmodified (or, if modified,
stating the nature of such modification), (b) the date to which the rental
and other charges payable hereunder have been paid in advance, if any, and
(c) that there are, to such party's actual knowledge, no uncured defaults on
the part of the other hereunder (or specifying such defaults if any are
claimed).

                                      25
<PAGE>

Any such statement may be furnished to and relied upon by any prospective
purchaser or encumbrancer, assignee or sublessee of all or any portion of the
Project.

22.      SERVICE CHARGE: Tenant agrees to pay interest at the per annum rate
equal to two percent (2%) plus the prime rate announced as such from time to
time in the Wall Street Journal under the section "Money Rates" of any
payment of monthly Base Rent or additional charge payable by Tenant hereunder
which is not paid within five (5) days from the date due.

23.      BINDING EFFECT: The word "Tenant", wherever used in this Lease,
shall be construed to mean tenants in all cases where there is more than one
tenant, and the necessary grammatical changes required to make the provisions
hereof apply to corporations, partnerships or individuals, men or women,
shall in all cases be assumed as though in each case fully expressed. Each
provision hereof shall extend to and shall, as the case may require, bind and
inure to the benefit of Landlord and Tenant and their respective heirs, legal
representatives, successors and assigns.

24.      TRANSFER OF LANDLORD'S INTEREST: In the event of any transfer or
transfers of Landlord's interest in the Premises, other than a transfer for
security purposes only, the transferor shall be automatically relieved of any
and all obligations and liabilities on the part of Landlord accruing from and
after the date of such transfer, provided that the transferee assumes this
Lease and agrees to pay and perform the obligations of Landlord which accrue
thereafter; provided, however, that Landlord may not transfer its interest in
the Premises prior to the Commencement Date hereof and further provided, that
following such transfer Landlord will not be relieved of any obligation it
has to Tenant by reason of any events occurring prior to the date of such
transfer.

25.      LIMITATION OF LIABILITY: In the event that Landlord is ever adjudged
by any court to be liable to Tenant in damages, Tenant specifically agrees to
look solely to Landlord for the recovery of any judgment from Landlord, it
being agreed that if Landlord is a partnership, its partners whether general
or limited, or if Landlord is a corporation, its directors, officers, or
shareholders, shall never be personally liable for any judgment. The
provision contained in the foregoing sentence is not intended to, and shall
not, limit any right that Tenant might otherwise have to obtain injunctive
relief against Landlord or Landlord's successor in interest, or to maintain
any other action not involving the personal liability of Landlord (or if
Landlord is a partnership, its partners whether general or limited, or if
Landlord is a corporation, requiring its directors, officers or shareholders
to respond in monetary damages from assets other than Landlord's in the
Building) or to maintain any suit or action in connection with enforcement or
collection of amounts which may become owing or payable under or on account
of insurance maintained by Landlord.

26.      ADDITIONAL RENT AMOUNTS: Any amounts in addition to Base Rent
payable to Landlord by Tenant hereunder, including without limitation amounts
payable pursuant to Sections 5, 14, 16.1 and EXHIBIT C, and hereof
("Additional Rent") shall be an obligation of Tenant hereunder and all such
Additional Rent shall be due and payable on the date expressly set forth
herein or, if no date has been specified, within twenty (20) days after
receipt of written demand thereof, accompanied by reasonable substantiation
in case of amounts which are not fixed under this Lease.

27.      INCORPORATION OF EXHIBITS: The following exhibits to this Lease are
hereby incorporated by reference for all purposes as fully set forth at length
herein:

                                      26
<PAGE>

<TABLE>

         <S>               <C>
         Exhibit A-1       Legal Description and Permitted Exceptions
         Exhibit B         Site Plan
         Exhibit C         Additional Terms and Conditions
         Exhibit D         Outline Plans and Specifications
         Exhibit E         Construction Schedule
         Exhibit F         Phase I Completion
         Exhibit G         Project Cost Estimate
         Exhibit H         Memorandum of Lease Agreement
</TABLE>

28.      BROKERS: Landlord acknowledges and agrees that it is obligated to
pay a brokerage fee of $440,000.00 to Mark Sims and United Properties,
payable one-half upon Lease execution, one-fourth upon occupancy, and
one-fourth upon the earlier of (1) the release of Tenant from its obligations
for its existing facilities in Bloomington and Eden Prairie or (ii) December
31, 2000.

         Except as specifically provided for in this Section 28, Landlord and
Tenant each represent and warrant to the other that no brokerage fee,
commission or finders fee of any kind is due any party by reason of this
transaction.

29.      GENERAL: The submission of this Lease for examination does not
constitute the reservation of or an option for the Premises, and this Lease
becomes effective only upon execution and delivery hereof by Landlord and
Tenant. This Lease does not create the relationship of principal and agent or
of partnership, joint venture or any association between Landlord and Tenant,
the sole relationship between Landlord and Tenant being that of lessor and
lessee. No waiver of any default of Tenant hereunder shall be implied from
any omission by Landlord to take any action on account of such default if
such default persists or is repeated, and no express waiver shall affect any
default other than the default specified in the express waiver and that only
for the time and to the extent therein stated. The topical headings of the
several paragraphs and clauses are for convenience only and do not define,
limit or construe the contents of such paragraphs or clauses. All preliminary
negotiations are merged into and incorporated in this Lease. This Lease can
only be modified or amended by an agreement in writing signed by the parties
hereto, their successors or assigns. All provisions hereof shall be binding
upon the heirs, successors and assigns of each party hereto.

         Tenant may exercise and continue to exercise all of its rights under
this Lease upon the occurrence and during the continuance of any default
under this Lease up to the point of termination of this Lease.

         Time is of the essence under this Lease.

30.      SEVERABILITY: The invalidity of any provision, clause or phrase
herein contained shall not serve to render the balance of this Lease
ineffective or void and the same shall be construed as if such had not been
herein set forth.

31.      LEASE ASSUMPTION: INTENTIONALLY DELETED

32.      AUTHORITY:

                                      27
<PAGE>

         A.       Landlord represents and warrants to Tenant that:

                  (i)      Landlord has good title to the Premises free and
                           clear of any encumbrances that materially affects
                           Tenant's rights or obligations undethis Lease.

                  (ii)     Landlord has full power, right and authority to
                           execute and perform this Lease and all corporate
                           action necessary so to do has been duly taken.

                  (iii)    Provided Tenant is not in default hereunder, Tenant
                           shall and may peaceably and quietly occupy the
                           Premises during the Term of this Lease and any
                           renewal or extension thereof.

         B.       Tenant represents and warrants to Landlord that:

                  (i)      Tenant has full power, right and authority to execute
                           and perform this Lease and all corporate action
                           necessary so to do has been duly taken.

33.      ANTENNA INSTALLATION: Subject to the provisions of this Section 33,
Landlord grants Tenant the right to install, operate and maintain, at
Tenant's expense and risk, and without rent or other charge therefor, a
lawfully permitted antenna, satellite dish and associated equipment (the
"Antenna Equipment") at a location on the Building to be determined by Tenant
and reasonably acceptable to Landlord (the "Antenna Premises"):

                  a)       Tenant shall submit to Landlord for its approval,
                  plans and specifications for the proposed Antenna Equipment
                  installation, such approval not to be unreasonably withheld,
                  conditioned or delayed;

                  b)       Tenant shall make all required conduit or cable
                  connections between Tenant's equipment in the Premises and the
                  Antenna Equipment, subject to approval of such connections by
                  Landlord, which approval shall not be unreasonably withheld,
                  conditioned, or delayed:

                  c)       Tenant shall obtain necessary municipal, state and
                  federal permits and authorizations required to install,
                  maintain and operate the Antenna Equipment and pay any charges
                  levied by government agencies which are the sole result of
                  Tenant having the Antenna Equipment. Landlord agrees to fully
                  cooperate with Tenant in obtaining all such permits and
                  authorizations, at no cost or expense to Landlord;

                  d)       Tenant agrees to maintain the Antenna Equipment and
                  Antenna Premises in a good state of repair and to save
                  Landlord harmless from any claims, liability or expenses
                  resulting from the erection, maintenance, existence or removal
                  of the Antenna Equipment, provided that such loss, costs or
                  damages are not due, in whole or in part, to the negligence or
                  willful misconduct of Landlord, its agents, employees or
                  contractors;

                  e)       At the conclusion of the Term, Tenant shall remove
                  the Antenna Equipment and surrender and restore the Antenna
                  Premises to Landlord in substantially as good condition as
                  when entered, except for loss or damages resulting from
                  casualty,

                                      28
<PAGE>

                  condemnation, act of God or ordinary wear and tear.

34.      MEMORANDUM OF LEASE: If requested by either party. Landlord and Tenant
shall enter into and record a Memorandum of Lease Agreement, in the form of
Exhibit H.

IN WITNESS WHEREOF, the respective parties hereto have caused this Lease to be
executed the day and year first above written.

LANDLORD:

RYAN COMPANIES US, INC.

BY:      /s/ Timothy McShane
   ---------------------------------

Its:     Vice President
    --------------------------------

TENANT:

D56, INC.

BY:      /s/ Robert Rose
   ---------------------------------

Its:     Vice President
    --------------------------------

                                      29

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