Document:

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                                                                    Exhibit 10.6

                               NETWORK PLUS CORP.

                          Common Stock Purchase Warrant

                                                              New York, New York
No. FW-3                                                      September 27, 2000

          NETWORK PLUS CORP. (the "COMPANY"), a Delaware corporation, for value
received, hereby certifies that SNOGA, INC., or registered assigns, is entitled
to purchase from the Company 1,284,685 duly authorized, validly issued, fully
paid and nonassessable shares of Common Stock, par value $0.01 per share (the
"COMMON STOCK") of the Company at the purchase price per share of $7.01, at any
time or from time to time prior to 5:00 P.M., New York City time, on September
27, 2003 (or such earlier date as may be determined pursuant to section 3), all
subject to the terms, conditions and adjustments set forth below in this
Warrant.

          This Warrant evidences rights to purchase an aggregate of 1,284,685
shares of Common Stock subject to adjustment as provided herein. Certain
capitalized terms used in this Warrant are defined in section 13; references to
an "Exhibit" are, unless otherwise specified, to one of the Exhibits attached to
this Warrant and references to a "section" are, unless otherwise specified, to
one of the sections of this Warrant.

          1.   EXERCISE OF WARRANT.

          1.1. MANNER OF EXERCISE. This Warrant may be exercised by the holder
hereof, in whole or in part, during normal business hours on any Business Day,
by surrender of this Warrant to the Company at its principal office, accompanied
by a subscription in substantially the form attached to this Warrant (or a
reasonable facsimile thereof) duly executed by such holder and accompanied by
payment, in cash, by certified or official bank check payable to the order of
the Company, or in the manner provided in section 1.4 or section 1.5 (or by any
combination of such methods), in the amount obtained by multiplying (a) the
whole number of shares of Common Stock (without giving effect to any adjustment
thereof) designated in such subscription by (b) $7.01 (as adjusted pursuant to
the terms hereof), and such holder shall thereupon be entitled to receive the
number of duly authorized, validly issued, fully paid and nonassessable shares
of Common Stock (or Other Securities) determined as provided in sections 2
through 4.

          1.2. WHEN EXERCISE EFFECTIVE. Each exercise of this Warrant shall be
deemed to have been effected immediately prior to the close of business on the
Business Day on which this Warrant shall have been surrendered to the Company as
provided in section 1.1, and at such time the Person or Persons in whose name or
names any certificate or certificates for shares of Common

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Stock (or Other Securities) shall be issuable upon such exercise as provided in
section 1.3 shall be deemed to have become the holder or holders of record
thereof.

          1.3. DELIVERY OF STOCK CERTIFICATES, ETC. As soon as practicable after
each exercise of this Warrant, in whole or in part, and in any event within ten
Business Days thereafter, the Company at its expense (including the payment by
it of any applicable issue taxes) will cause to be issued in the name of and
delivered to the holder hereof or, subject to section 9, as such holder (upon
payment by such holder of any applicable transfer taxes) may direct,

          (a)  a certificate or certificates for the number of duly authorized,
     validly issued, fully paid and nonassessable shares of Common Stock (or
     Other Securities) to which such holder shall be entitled upon such exercise
     plus, in lieu of any fractional share to which such holder would otherwise
     be entitled, cash in an amount equal to the same fraction of the Market
     Price per share on the Business Day next preceding the date of such
     exercise, and

          (b)  in case such exercise is in part only, a new Warrant or Warrants
     of like tenor, calling in the aggregate on the face or faces thereof for
     the number of shares of Common Stock equal (without giving effect to any
     adjustment thereof) to the number of such shares called for on the face of
     this Warrant minus the number of such shares designated by the holder upon
     such exercise as provided in section 1.1.

          The holder hereof shall comply will all applicable provisions of the
Hart-Scott-Rodino Antitrust Improvements Law of 1976, as amended, and any
successor statute, in connection with the exercise of this Warrant, and shall
provide to the Company upon its reasonable request a certificate of such
compliance.

          1.4. PAYMENT BY APPLICATION OF SHARES OTHERWISE ISSUABLE. Upon any
exercise of this Warrant, the holder hereof may, at its option, instruct the
Company, by written notice accompanying the surrender of this Warrant at the
time of such exercise, to apply to the payment required by section 1.1 such
number of the shares of Common Stock otherwise issuable to such holder upon such
exercise as shall be specified in such notice, in which case an amount equal to
the excess of the aggregate Current Market Price of such specified number of
shares on the date of exercise over the portion of the payment required by
section 1.1 attributable to such shares shall be deemed to have been paid to the
Company and the number of shares issuable upon such exercise shall be reduced by
such specified number.

          1.5. EXERCISE OF WARRANTS. Notwithstanding anything to the contrary
set forth herein, no Warrant shall be exercisable other than in accordance with
this section 1.5. The Warrants shall be exercisable as follows: (i) 72.73% of
holder's Warrants shall be exercisable at any time on or after the Closing Date
(as defined in the Credit Agreement), (ii) 13.64% shall be exercisable on a pro
rata basis with each amount drawn by the Company on the first $100 million of
loans under the Credit Agreement divided by $100 million, and (iii) 13.63% shall
be exercisable at any time on or after the date the amount drawn by the Company
under the Credit Agreement exceeds $100 million

          2.   ADJUSTMENT OF COMMON STOCK ISSUABLE UPON EXERCISE.

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          2.1. GENERAL; WARRANT PRICE. The number of shares of Common Stock
which the holder of this Warrant shall be entitled to receive upon each exercise
hereof shall be determined by multiplying the number of shares of Common Stock
which would otherwise (but for the provisions of this section 2) be issuable
upon such exercise, as designated by the holder hereof pursuant to section 1.1,
by the fraction of which (a) the numerator is $7.01 and (b) the denominator is
the Warrant Price in effect on the date of such exercise. The "Warrant Price"
shall initially be $7.01 per share, shall be adjusted and readjusted from time
to time as provided in this section 2 and, as so adjusted or readjusted, shall
remain in effect until a further adjustment or readjustment thereof is required
by this section 2.

          2.2. ADJUSTMENT OF WARRANT PRICE.

          2.2.1 ISSUANCE OF ADDITIONAL SHARES OF COMMON STOCK. In case the
Company at any time or from time to time after the date hereof shall issue or
sell Additional Shares of Common Stock (including Additional Shares of Common
Stock deemed to be issued pursuant to section 2.3 or 2.4) without consideration
or for a consideration per share less than the Current Market Price in effect
immediately prior to such issue or sale, then, subject to section 2.8, the
Warrant Price shall be reduced, concurrently with such issue or sale, to a price
(calculated to the nearest .001 of a cent) determined by multiplying such
Warrant Price by a fraction

          (a)  the numerator of which shall be (i) the number of shares of
     Common Stock outstanding immediately prior to such issue or sale plus (ii)
     the number of shares of Common Stock which the aggregate consideration
     received by the Company for the total number of such Additional Shares of
     Common Stock so issued or sold would purchase at such Current Market Price,
     and

          (b)  the denominator of which shall be the number of shares of Common
     Stock outstanding immediately after such issue or sale,

PROVIDED that, for the purposes of this section 2.2.1, (x) immediately after any
Additional Shares of Common Stock are deemed to have been issued pursuant to
section 2.3 or 2.4, such Additional Shares shall be deemed to be outstanding,
and (y) treasury shares shall not be deemed to be outstanding.

          2.2.2 EXTRAORDINARY DIVIDENDS AND DISTRIBUTIONS. In case the Company
at any time or from time to time after the date hereof shall declare, order, pay
or make a dividend or other distribution (including, without limitation, any
distribution of other or additional stock or other securities or property or
Options by way of dividend or spin-off, reclassification, recapitalization or
similar corporate rearrangement) on the Common Stock, other than a dividend
payable in Additional

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Shares of Common Stock, then, and in each such case, subject to section 2.8, the
Warrant Price in effect immediately prior to the close of business on the record
date fixed for the determination of holders of any class of securities entitled
to receive such dividend or distribution shall be reduced, effective as of the
close of business on such record date, to a price (calculated to the nearest
 .001 of a cent) determined by multiplying such Warrant Price by a fraction

          (x)  the numerator of which shall be the Current Market Price in
     effect on such record date or, if the Common Stock trades on an ex-dividend
     basis, on the date prior to the commencement of ex-dividend trading, less
     the amount of such dividend or distribution (as determined in good faith by
     the Board of Directors of the Company) applicable to one share of Common
     Stock, and

          (y)  the denominator of which shall be such Current Market Price.

          2.3. TREATMENT OF OPTIONS AND CONVERTIBLE SECURITIES. In case the
Company at any time or from time to time after the date hereof shall issue,
sell, grant or assume, or shall fix a record date for the determination of
holders of any class of securities entitled to receive, any Options or
Convertible Securities, then, and in each such case, the maximum number of
Additional Shares of Common Stock (as set forth in the instrument relating
thereto, without regard to any provisions contained therein for a subsequent
adjustment of such number) issuable upon the exercise of such Options or, in the
case of Convertible Securities and Options therefor, the conversion or exchange
of such Convertible Securities, shall be deemed to be Additional Shares of
Common Stock issued as of the time of such issue, sale, grant or assumption or,
in case such a record date shall have been fixed, as of the close of business on
such record date (or, if the Common Stock trades on an ex-dividend basis, on the
date prior to the commencement of ex-dividend trading), PROVIDED that such
Additional Shares of Common Stock shall not be deemed to have been issued unless
the consideration per share (determined pursuant to section 2.5) of such shares
would be less than the Current Market Price in effect on the date of and
immediately prior to such issue, sale, grant or assumption or immediately prior
to the close of business on such record date (or, if the Common Stock trades on
an ex-dividend basis, on the date prior to the commencement of ex-dividend
trading), and PROVIDED, FURTHER, that in any such case in which Additional
Shares of Common Stock are deemed to be issued

          (a)  no further adjustment of the Warrant Price shall be made upon the
     subsequent issue or sale of Convertible Securities or shares of Common
     Stock upon the exercise of such Options or the conversion or exchange of
     such Convertible Securities, except in the case of any such Options or
     Convertible Securities which contain provisions requiring an adjustment,
     subsequent to the date of the issue or sale thereof, of the number of
     Additional Shares of Common Stock issuable upon the exercise of such
     Options or the conversion or exchange of such Convertible Securities by
     reason of (x) a change of control of the

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     Company, (y) the acquisition by any Person or group of Persons of any
     specified number or percentage of the Voting Securities of the Company or
     (z) any similar event or occurrence, each such case to be deemed hereunder
     to involve a separate issuance of Additional Shares of Common Stock,
     Options or Convertible Securities, as the case may be;

          (b)  if such Options or Convertible Securities by their terms provide,
     with the passage of time or otherwise, for any increase in the
     consideration payable to the Company, or decrease in the number of
     Additional Shares of Common Stock issuable, upon the exercise, conversion
     or exchange thereof (by change of rate or otherwise), the Warrant Price
     computed upon the original issue, sale, grant or assumption thereof (or
     upon the occurrence of the record date, or date prior to the commencement
     of ex-dividend trading, as the case may be, with respect thereto), and any
     subsequent adjustments based thereon, shall, upon any such increase or
     decrease becoming effective, be recomputed to reflect such increase or
     decrease insofar as it affects such Options, or the rights of conversion or
     exchange under such Convertible Securities, which are outstanding at such
     time;

          (c)  upon the expiration (or purchase by the Company and cancellation
     or retirement) of any such Options which shall not have been exercised or
     the expiration of any rights of conversion or exchange under any such
     Convertible Securities which (or purchase by the Company and cancellation
     or retirement of any such Convertible Securities the rights of conversion
     or exchange under which) shall not have been exercised, the Warrant Price
     computed upon the original issue, sale, grant or assumption thereof (or
     upon the occurrence of the record date, or date prior to the commencement
     of ex-dividend trading, as the case may be, with respect thereto), and any
     subsequent adjustments based thereon, shall, upon such expiration (or such
     cancellation or retirement, as the case may be), be recomputed as if:

               (i)  in the case of Options for Common Stock or Convertible
          Securities, the only Additional Shares of Common Stock issued or sold
          were the Additional Shares of Common Stock, if any, actually issued or
          sold upon the exercise of such Options or the conversion or exchange
          of such Convertible Securities and the consideration received therefor
          was the consideration actually received by the Company for the issue,
          sale, grant or assumption of all such Options, whether or not
          exercised, plus the consideration actually received by the Company
          upon such exercise, or for the issue or sale of all such Convertible
          Securities which were actually converted or exchanged, plus the
          additional consideration, if any, actually received by the Company
          upon such conversion or exchange, and

               (ii) in the case of Options for Convertible Securities, only the
          Convertible Securities, if any, actually issued or sold upon the
          exercise of such Options were

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          issued at the time of the issue, sale, grant or assumption of such
          Options, and the consideration received by the Company for the
          Additional Shares of Common Stock deemed to have then been issued was
          the consideration actually received by the Company for the issue,
          sale, grant or assumption of all such Options, whether or not
          exercised, plus the consideration deemed to have been received by the
          Company (pursuant to section 2.5) upon the issue or sale of such
          Convertible Securities with respect to which such Options were
          actually exercised;

          (d)  no readjustment pursuant to subdivision (b) or (c) above shall
     have the effect of increasing the Warrant Price by an amount in excess of
     the amount of the adjustment thereof originally made in respect of the
     issue, sale, grant or assumption of such Options or Convertible Securities;
     and

          (e)  in the case of any such Options which expire by their terms not
     more than 30 days after the date of issue, sale, grant or assumption
     thereof, no adjustment of the Warrant Price shall be made until the
     expiration or exercise of all such Options, whereupon such adjustment shall
     be made in the manner provided in subdivision (c) above.

          2.4. TREATMENT OF STOCK DIVIDENDS, STOCK SPLITS, ETC. In case the
Company at any time or from time to time after the date hereof shall declare or
pay any dividend on the Common Stock payable in Common Stock, or shall effect a
subdivision of the outstanding shares of Common Stock into a greater number of
shares of Common Stock (by reclassification or otherwise than by payment of a
dividend in Common Stock), then, and in each such case, Additional Shares of
Common Stock shall be deemed to have been issued (a) in the case of any such
dividend, immediately after the close of business on the record date for the
determination of holders of any class of securities entitled to receive such
dividend, or (b) in the case of any such subdivision, at the close of business
on the day immediately prior to the day upon which such corporate action becomes
effective.

          2.5. COMPUTATION OF CONSIDERATION. For the purposes of this section 2,

          (a)  the consideration for the issue or sale of any Additional Shares
     of Common Stock shall, irrespective of the accounting treatment of such
     consideration,

               (i)  insofar as it consists of cash, be computed at the net
          amount of cash received by the Company,

               (ii) insofar as it consists of property (including securities)
          other than cash, be computed at the fair value thereof at the time of
          such issue or sale, as determined in good faith by the Board of
          Directors of the Company, and

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               (iii) in case Additional Shares of Common Stock are issued or
          sold together with other stock or securities or other assets of the
          Company for a consideration which covers both, be the portion of such
          consideration so received, computed as provided in clauses (i) and
          (ii) above, allocable to such Additional Shares of Common Stock, all
          as determined in good faith by the Board of Directors of the Company;

          (b)  Additional Shares of Common Stock deemed to have been issued
     pursuant to section 2.3, relating to Options and Convertible Securities,
     shall be deemed to have been issued for a consideration per share
     determined by dividing

               (i)  the total amount, if any, received and receivable by the
          Company as consideration for the issue, sale, grant or assumption of
          the Options or Convertible Securities in question, plus the minimum
          aggregate amount of additional consideration (as set forth in the
          instruments relating thereto, without regard to any provision
          contained therein for a subsequent adjustment of such consideration to
          protect against dilution) payable to the Company upon the exercise in
          full of such Options or the conversion or exchange of such Convertible
          Securities or, in the case of Options for Convertible Securities, the
          exercise of such Options for Convertible Securities and the conversion
          or exchange of such Convertible Securities, in each case computing
          such consideration as provided in the foregoing subdivision (a),

by

               (ii) the maximum number of shares of Common Stock (as set forth
          in the instruments relating thereto, without regard to any provision
          contained therein for a subsequent adjustment of such number to
          protect against dilution) issuable upon the exercise of such Options
          or the conversion or exchange of such Convertible Securities; and

          (c)  Additional Shares of Common Stock deemed to have been issued
     pursuant to section 2.4, relating to stock dividends, stock splits, etc.,
     shall be deemed to have been issued for no consideration.

          2.6. ADJUSTMENTS FOR COMBINATIONS, ETC. In case the outstanding shares
of Common Stock shall be combined or consolidated, by reclassification, reverse
stock-split or otherwise, into a lesser number of shares of Common Stock, the
Warrant Price in effect immediately prior to such combination or consolidation
shall, concurrently with the effectiveness of such combination or consolidation,
be proportionately increased.

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          2.7. MINIMUM ADJUSTMENT OF WARRANT PRICE. If the amount of any
adjustment of the Warrant Price required pursuant to this section 2 would be
less than one tenth (1/10) of one percent (1%) of the Warrant Price in effect at
the time such adjustment is otherwise so required to be made, such amount shall
be carried forward and adjustment with respect thereto made at the time of and
together with any subsequent adjustment which, together with such amount and any
other amount or amounts so carried forward, shall aggregate at least one tenth
(1/10) of one percent (1%) of such Warrant Price.

          3.   ADJUSTMENTS FOR CONSOLIDATION, MERGER, SALE OF ASSETS,
REORGANIZATION, ETC. In case the Company after the date hereof (a) shall
consolidate with or merge into any other Person and shall not be the continuing
or surviving corporation of such consolidation or merger, or (b) shall permit
any other Person to consolidate with or merge into the Company and the Company
shall be the continuing or surviving Person but, in connection with such
consolidation or merger, the Common Stock or Other Securities shall be changed
into or exchanged for stock or other securities of any other Person or cash or
any other property, or (c) shall transfer all or substantially all of its
properties or assets to any other Person, or (d) shall effect a capital
reorganization or reclassification of the Common Stock or Other Securities
(other than a capital reorganization or reclassification resulting in the issue
of Additional Shares of Common Stock for which adjustment in the Warrant Price
is provided in section 2.2.1 or 2.2.2), THEN, this Warrant shall automatically
terminate in its entirety immediately upon the consummation of such transaction;
provided that, upon the basis and the terms and in the manner provided in this
Warrant, the holder of this Warrant shall be permitted to exercise this Warrant
immediately preceding the consummation of such transaction and immediately after
such exercise shall be entitled to receive (at the aggregate Warrant Price in
effect at the time of such consummation for all Common Stock or Other Securities
issuable upon such exercise immediately prior to such consummation), in lieu of
the Common Stock or Other Securities issuable upon such exercise prior to such
consummation, the stock and other securities, cash and property to which such
holder would have been entitled upon such consummation if such holder had
exercised the rights represented by this Warrant immediately prior thereto.

          4.   OTHER DILUTIVE EVENTS. In case any event shall occur as to which
the provisions of section 2 or section 3 are not strictly applicable but the
failure to make any adjustment would not fairly protect the purchase rights
represented by this Warrant in accordance with the essential intent and
principles of such sections, then, in each such case, the Company shall appoint
a firm of independent certified public accountants of recognized national
standing (which may be the regular auditors of the Company), which shall give
their opinion upon the adjustment, if any, on a basis consistent with the
essential intent and principles established in sections 2 and 3, necessary to
preserve, without dilution, the purchase rights represented by this Warrant.
Upon receipt of such opinion, the Company will promptly mail a copy thereof to
the holder of this Warrant and shall make the adjustments described therein.

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          5.   NO DILUTION OR IMPAIRMENT. The Company will not, by amendment of
its certificate of incorporation or through any consolidation, merger,
reorganization, transfer of assets, dissolution, issue or sale of securities or
any other voluntary action, avoid or seek to avoid the observance or performance
of any of the terms of this Warrant, but will at all times in good faith assist
in the carrying out of all such terms and in the taking of all such action as
may be necessary or appropriate in order to protect the rights of the holder of
this Warrant against dilution or other impairment. Without limiting the
generality of the foregoing, the Company (a) will not permit the par value of
any shares of stock receivable upon the exercise of this Warrant to exceed the
amount payable therefor upon such exercise, (b) will take all such action as may
be necessary or appropriate in order that the Company may validly and legally
issue fully paid and nonassessable shares of stock on the exercise of the
Warrants from time to time outstanding and (c) will not take any action which
results in any adjustment of the Warrant Price if the total number of shares of
Common Stock (or Other Securities) issuable after the action upon the exercise
of all of the Warrants would exceed the total number of shares of Common Stock
(or Other Securities) then authorized by the Company's certificate of
incorporation and available for the purpose of issue upon such exercise.

          6.   REPORT AS TO ADJUSTMENTS. In each case of any adjustment or
readjustment in the shares of Common Stock (or Other Securities) issuable upon
the exercise of this Warrant, the Company at its expense will promptly compute
such adjustment or readjustment in accordance with the terms of this Warrant and
provide to holder an officers certificate verifying such computation (other than
any computation of the fair value of property as determined in good faith by the
Board of Directors of the Company) and prepare a report setting forth such
adjustment or readjustment and showing in reasonable detail the method of
calculation thereof and the facts upon which such adjustment or readjustment is
based, including a statement of (a) the consideration received or to be received
by the Company for any Additional Shares of Common Stock issued or sold or
deemed to have been issued, (b) the number of shares of Common Stock outstanding
or deemed to be outstanding, and (c) the Warrant Price in effect immediately
prior to such issue or sale and as adjusted and readjusted (if required by
section 2) on account thereof. The Company will forthwith mail a copy of each
such report to each holder of a Warrant and will, upon the written request at
any time of any holder of a Warrant, furnish to such holder a like report
setting forth the Warrant Price at the time in effect and showing in reasonable
detail how it was calculated.

          7.   NOTICES OF CORPORATE ACTION. In the event of
          (a)  any taking by the Company of a record of the holders of Common
     Stock for the purpose of determining the holders thereof who are entitled
     to receive any dividend (other than a regular periodic dividend payable in
     cash out of earned surplus in an amount not exceeding the amount of the
     immediately preceding cash dividend for such period) or other distribution,
     or any right to subscribe for, purchase or otherwise acquire any shares of
     stock of any class or any other securities or property, or to receive any
     other right, or

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          (b)  any capital reorganization of the Company, any reclassification
     or recapitalization of the capital stock of the Company or any
     consolidation or merger involving the Company and any other Person or any
     transfer of all or substantially all the assets of the Company to any other
     Person, or

          (c)  any voluntary or involuntary dissolution, liquidation or
     winding-up of the Company,

the Company will mail to each holder of a Warrant a notice specifying (i) the
date or expected date on which any such record is to be taken for the purpose of
such dividend, distribution or right, and the amount and character of such
dividend, distribution or right, and (ii) the date or expected date on which any
such reorganization, reclassification, recapitalization, consolidation, merger,
transfer, dissolution, liquidation or winding-up is to take place and the time,
if any such time is to be fixed, as of which the holders of record of Common
Stock (or Other Securities) shall be entitled to exchange their shares of Common
Stock (or Other Securities) for the securities or other property deliverable
upon such reorganization, reclassification, recapitalization, consolidation,
merger, transfer, dissolution, liquidation or winding-up. Such notice shall be
mailed at least twenty days prior to the date therein specified.

          8.   REGISTRATION OF COMMON STOCK. If any shares of Common Stock
required to be reserved for purposes of exercise of this Warrant require
registration with or approval of any governmental authority under any federal or
state law (other than the Securities Act) before such shares may be issued upon
exercise, the Company will, at its expense and as expeditiously as possible, use
its reasonable best efforts to cause such shares to be duly registered or
approved, as the case may be. At any such time as Common Stock is listed on any
national securities exchange, the Company will, at its expense, use its
reasonable best efforts to obtain promptly and maintain the approval for listing
on each such exchange, upon official notice of issuance, the shares of Common
Stock issuable upon exercise of the then outstanding Warrants and maintain the
listing of such shares after their issuance; and the Company will use its
reasonable best efforts to list on such national securities exchange, register
under the Exchange Act and maintain such listing of, any Other Securities that
at any time are issuable upon exercise of the Warrants, if and at the time that
any securities of the same class shall be listed on such national securities
exchange by the Company.

          9.   RESTRICTIONS ON TRANSFER.

          9.1. RESTRICTIVE LEGENDS. Except as otherwise permitted by this
section 9, each Warrant (including each Warrant issued upon the transfer of any
Warrant) shall be stamped or otherwise imprinted with a legend in substantially
the following form:

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          "This Warrant and any shares acquired upon the exercise of this
     Warrant have not been registered under the Securities Act of 1933, as
     amended, and may not be transferred, sold or otherwise disposed of except
     while a registration under such Act is in effect or pursuant to an
     exemption therefrom under such Act. This Warrant and such shares may be
     transferred only in compliance with the conditions specified in this
     Warrant."

Except as otherwise permitted by this section 9, each certificate for Common
Stock (or Other Securities) issued upon the exercise of any Warrant, and each
certificate issued upon the transfer of any such Common Stock (or Other
Securities), shall be stamped or otherwise imprinted with a legend in
substantially the following form:

          "The shares represented by this certificate have not been registered
     under the Securities Act of 1933 and may not be transferred in the absence
     of such registration or an exemption therefrom under such Act. Such shares
     may be transferred only in compliance with the conditions specified in
     certain Common Stock Purchase Warrants issued by Network Plus Corp. A
     complete and correct copy of the form of such Warrant is available from
     Network Plus Corp. and will be furnished to the holder of such shares upon
     written request and without charge."

          9.2. NOTICE OF PROPOSED TRANSFER; OPINIONS OF COUNSEL. Prior to any
transfer of any Restricted Securities which are not registered under an
effective registration statement under the Securities Act, the holder thereof
will give written notice to the Company of such holder's intention to effect
such transfer and to comply in all other respects with this section 9.2. Each
such notice (a) shall describe the manner and circumstances of the proposed
transfer in sufficient detail to enable counsel to render the opinions referred
to below, and (b) shall designate counsel for the holder giving such notice (who
may be house counsel for such holder). The holder giving such notice will submit
a copy thereof to the counsel designated in such notice and the Company will
promptly submit a copy thereof to its counsel. The following provisions shall
then apply:

               (i)  If (A) in the opinion of such counsel for the holder the
          proposed transfer may be effected without registration of such
          Restricted Securities under the Securities Act, and (B) counsel for
          the Company shall not have rendered a reasoned written objection
          thereto within 15 days after the receipt by the Company of such
          written notice that such registration is required, such holder shall
          thereupon be entitled to transfer such securities in accordance with
          the terms of the notice delivered by such holder to the Company. Each
          warrant or certificate, if any, representing such securities issued
          upon or in connection with such transfer shall bear the appropriate
          restrictive legend required by section 9.1, unless in the opinion of
          each such counsel such legend is no longer required to insure
          compliance with the

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          Securities Act.

               (ii) If in the opinion of either of or both such counsel the
          proposed transfer may not legally be effected without registration of
          such Restricted Securities under the Securities Act (such opinion or
          opinions to state the basis of the legal conclusions reached therein),
          the Company will promptly so notify the holder thereof and thereafter
          such holder shall not be entitled to transfer such Restricted
          Securities until either (x) receipt by the Company of a further notice
          from such holder pursuant to the foregoing provisions of this section
          9.2 and fulfillment of the provisions of clause (i) above or (y) such
          shares have been effectively registered under the Securities Act.

Notwithstanding the foregoing provisions of this section 9.2(ii), Snoga, Inc.
shall be permitted to transfer any Restricted Securities to a limited number of
institutional investors, PROVIDED that (A) each such investor represents in
writing that it is acquiring such Restricted Securities for investment and not
with a view to the distribution thereof (subject, however, to any requirement of
law that the disposition thereof shall at all times be within the control of
such transferee), (B) each such investor agrees in writing to be bound by all
the restrictions on transfer of such Restricted Securities contained in this
section 9.2 and (C) Snoga, Inc. delivers to the Company an opinion of Skadden,
Arps, Slate, Meagher & Flom, or other counsel satisfactory to the Company,
stating that such transfer may be effected without registration under the
Securities Act. The Company will pay the reasonable fees and disbursements of
Skadden, Arps, Slate, Meagher & Flom or Hale & Dorr for any holder of Restricted
Securities and of counsel for the Company in connection with all opinions
rendered by them pursuant to this section 9.2 and pursuant to section 9.3;
provided that such opinions relate to the transfer of at least 1,284,685 shares
of Common Stock in the aggregate (subject to proportionate adjustment as
provided for hereunder) and that such shares will cease to constitute Restricted
Securities following such transfer for the purposes of this section 9.2 and
section 9.3.

          9.3. TERMINATION OF RESTRICTIONS. The restrictions imposed by this
section 9 upon the transferability of Restricted Securities shall cease and
terminate as to any particular Restricted Securities (a) when such securities
shall have been effectively registered under the Securities Act, or (b) when, in
the opinions of both counsel for the holder thereof and counsel for the Company,
such restrictions are no longer required in order to insure compliance with the
Securities Act. Whenever such restrictions shall cease and terminate as to any
Restricted Securities, the holder thereof shall be entitled to receive from the
Company, without expense (other than applicable transfer taxes, if any), new
securities of like tenor not bearing the applicable legends required by section
9.1.

          10.  RESERVATION OF STOCK, ETC. The Company will at all times reserve
and keep available, solely for issuance and delivery upon exercise of the
Warrants, the number of shares of Common Stock (or Other Securities) from time
to time issuable upon exercise of all Warrants at the

                                       12
<PAGE>   13

time outstanding. All shares of Common Stock (or Other Securities) issuable upon
exercise of any Warrants shall be duly authorized and, when issued upon such
exercise, shall be validly issued and, in the case of shares, fully paid and
nonassessable with no liability on the part of the holders thereof.

          11.  REGISTRATION AND TRANSFER OF WARRANTS, ETC.

          11.1. WARRANT REGISTER; OWNERSHIP OF WARRANTS. The Company will keep
at the principal office of the Company or its transfer agent a register in which
the Company will provide for the registration of Warrants and the registration
of transfers of Warrants. The Company may treat the Person in whose name any
Warrant is registered on such register as the owner thereof for all other
purposes, and the Company shall not be affected by any notice to the contrary,
except that, if and when any Warrant is properly assigned in blank, the Company
may (but shall not be obligated to) treat the bearer thereof as the owner of
such Warrant for all purposes. Subject to section 9, a Warrant, if properly
assigned, may be exercised by a new holder without a new Warrant first having
been issued.

          11.2. TRANSFER AND EXCHANGE OF WARRANTS. Upon surrender of any Warrant
for registration of transfer or for exchange to the Company at its principal
office, the Company at its expense will (subject to compliance with section 9,
if applicable) execute and deliver in exchange therefor a new Warrant or
Warrants of like tenor, in the name of such holder or as such holder (upon
payment by such holder of any applicable transfer taxes) may direct, calling in
the aggregate on the face or faces thereof for the number of shares of Common
Stock called for on the face or faces of the Warrant or Warrants so surrendered.

          11.3. REPLACEMENT OF WARRANTS. Upon receipt of evidence reasonably
satisfactory to the Company of the loss, theft, destruction or mutilation of any
Warrant and, in the case of any such loss, theft or destruction of any Warrant,
upon delivery of an indemnity bond in such reasonable amount as the Company may
determine (or, in the case of any Warrant held by any Institutional Holder or
its nominee, of an indemnity agreement from such Institutional Holder reasonably
satisfactory to the Company), or, in the case of any such mutilation, upon the
surrender of such Warrant for cancellation to the Company at its principal
office, the Company at its expense will execute and deliver, in lieu thereof, a
new Warrant of like tenor.

          12.  REGISTRATION UNDER SECURITIES ACT, ETC.

          12.1. REGISTRATION ON REQUEST.

          (a)  REQUEST. On no more than three occasions upon the written request
     of one or more Initiating Holders, requesting that the Company effect the
     registration under the Securities Act of all or part of such Initiating
     Holders' Registerable Securities and specifying

                                       13
<PAGE>   14

     the intended method of disposition thereof, the Company will, subject to
     the terms of this Warrant, promptly give written notice of such requested
     registration to all registered holders of Registerable Securities, and
     thereupon the Company will effect the registration under the Securities Act
     of

               (i)  the Registerable Securities which the Company has been so
          requested to register by such Initiating Holders for disposition in
          accordance with the intended method of disposition stated in such
          request, and

               (ii) all other Registerable Securities the holders of which shall
          have made a written request to the Company for registration thereof
          within 30 days after the giving of such written notice by the Company
          (which request shall specify the intended method of disposition of
          such Registerable Securities),

all to the extent requisite to permit the disposition (in accordance with the
intended methods thereof as aforesaid) of the Registerable Securities so to be
registered.

          (b)  REGISTRATION STATEMENT FORM. Registrations under this section
     12.1 shall be on such appropriate registration form of the Commission (i)
     as shall be selected by the Company and (ii) as shall permit the
     disposition of such Registerable Securities in accordance with the intended
     method or methods of disposition specified in their request for such
     registration. The Company agrees to include in any such registration
     statement all information which holders of Registerable Securities being
     registered shall reasonably request. If, in connection with any
     registration under this section 12.1 which is proposed by the Company to be
     on Form S-3 or any similar short form registration statement which is a
     successor to Form S-3, the managing underwriters, if any, shall advise the
     Company in writing that in their opinion the use of another permitted form
     is of material importance to the success of the offering, then such
     registration shall be on such other permitted form.

          (c)  EXPENSES. The Company will pay all Registration Expenses in
     connection with any registration requested pursuant to this section 12.1 by
     any Initiating Holders of Registerable Securities prior to the time at
     which three such registrations shall have been effected in which all of the
     Registerable Securities requested to be included in such registration by
     any holders of Registerable Securities shall have been registered pursuant
     to this section 12.1. The Registration Expenses (and underwriting discounts
     and commissions and transfer taxes, if any) in connection with each other
     registration requested under this section 12.1 shall be allocated pro rata
     among all Persons on whose behalf securities of the Company are included in
     such registration, on the basis of the respective amounts of the securities
     then being registered on their behalf.

                                       14
<PAGE>   15

          (d)  EFFECTIVE REGISTRATION STATEMENT. A registration requested
     pursuant to this section 12.1 shall not be deemed to have been effected (i)
     unless a registration statement with respect thereto has become effective,
     PROVIDED that a registration which does not become effective after the
     Company has filed a registration statement with respect thereto solely by
     reason of the refusal to proceed of the Initiating Holders (other than a
     refusal to proceed based upon the advice of counsel relating to a matter
     with respect to the Company OR material adverse information concerning the
     business or financial condition of the Company which is made known to the
     Initiating Holders after the date on which such registration was requested)
     shall be deemed to have been effected by the Company at the request of such
     Initiating Holders unless the Initiating Holders shall have elected to pay
     all Registration Expenses in connection with such registration, (ii) if,
     after it has become effective, such registration becomes subject to any
     stop order, injunction or other order or requirement of the Commission or
     other governmental agency or court for any reason, (provided that, in lieu
     of such registration not being deemed to have been effected, the Company
     may extend the registration period may be extended by the period of such
     stop order, injunction or other order, up to a maximum of ninety days) or
     (iii) the conditions to closing specified in the purchase agreement or
     underwriting agreement entered into in connection with such registration
     are not satisfied, other than by reason of some act or omission by such
     Initiating Holders.

          (e)  SELECTION OF UNDERWRITERS. If a requested registration pursuant
     to this section 12.1 involves an underwritten offering, the underwriter or
     underwriters thereof shall be selected by the holders of at least a
     majority (by number of shares) of the Registerable Securities as to which
     registration has been requested and shall be acceptable to the Company,
     which shall not unreasonably withhold its acceptance of any such
     underwriters.

          (f)  PRIORITY IN REQUESTED REGISTRATIONS. If a requested registration
     pursuant to this section 12.1 involves an underwritten offering, and the
     managing underwriter shall advise the Company in writing (with a copy to
     each holder of Registerable Securities requesting registration) that, in
     its opinion, the number of securities requested to be included in such
     registration exceeds the number which can be sold in such offering within a
     price range acceptable to the holders of a majority of the Registerable
     Securities requested to be included in such registration, the Company will
     include in such registration, to the extent of the number which the Company
     is so advised can be sold in such offering, Registerable Securities
     requested to be included in such registration by the holder or holders of
     Registerable Securities, PRO RATA among the holders thereof requesting such
     registration on the basis of the number of such securities requested to be
     included by such holders. In connection with any such registration, no
     securities other than Registerable Securities shall be covered by such
     registration.

                                       15
<PAGE>   16

          (g)  If at the time of any request to register Registerable Securities
     by any holder, pursuant to this Section 12.1, the Company is engaged or has
     plans to engage in a registered public offering or is engaged in any other
     activity which, in the good faith determination of the Company's Board of
     Directors, would be adversely affected by the requested registration, then
     the Company may at its option direct, upon no less than five days prior
     written notice, that such request be delayed for a period not in excess of
     90 days from the date of the expiration of such notice, such right to delay
     a request to be exercised by the Company not more than once in any 12-month
     period.

          12.2. INCIDENTAL REGISTRATION.

          (a)  RIGHT TO INCLUDE REGISTERABLE SECURITIES. If the Company at any
     time proposes to register any of its securities under the Securities Act
     (other than by a registration on Form S-4 or S-8 or any successor or
     similar forms and other than pursuant to section 12.1), whether or not for
     sale for its own account, it will each such time give prompt written notice
     to all holders of Registerable Securities of its intention to do so and of
     such holders' rights under this section 12.2. Upon the written request of
     any such holder made within fifteen days after the receipt of any such
     notice (which request shall specify the Registerable Securities intended to
     be disposed of by such holder and the intended method of disposition
     thereof), the Company will, subject to the terms of this Warrant, effect
     the registration under the Securities Act of all Registerable Securities
     which the Company has been so requested to register by the holders thereof,
     to the extent requisite to permit the disposition (in accordance with the
     intended methods thereof as aforesaid) of the Registerable Securities so to
     be registered, by inclusion of such Registerable Securities in the
     registration statement which covers the securities which the Company
     proposes to register, PROVIDED that if, at any time after giving written
     notice of its intention to register any securities and prior to the
     effective date of the registration statement filed in connection with such
     registration, the Company shall determine for any reason either not to
     register or to delay registration of such securities, the Company may, at
     its election, give written notice of such determination to each holder of
     Registerable Securities and, thereupon, (I) in the case of a determination
     not to register, shall be relieved of its obligation to register any
     Registerable Securities in connection with such registration (but not from
     its obligation to pay the Registration Expenses in connection therewith),
     without prejudice, however, to the rights of any holder or holders of
     Registerable Securities entitled to do so to request that such registration
     be effected as a registration under section 12.1, and (II) in the case of a
     determination to delay registering, shall be permitted to delay registering
     any Registerable Securities, for the same period as the delay in
     registering such other securities. No registration effected under this
     section 12.2 shall relieve the Company of its obligation to effect any
     registration upon request under section 12.1 nor shall any such
     registration hereunder be deemed to have been effected pursuant to section
     12.1. The Company will pay all Registration Expenses in

                                       16
<PAGE>   17

     connection with each registration of Registerable Securities requested
     pursuant to this section 12.2.

          (b)  PRIORITY IN INCIDENTAL REGISTRATIONS. If (i) a registration
     pursuant to this section 12.2 involves an underwritten offering of the
     securities so being registered, whether or not for sale for the account of
     the Company, to be distributed (on a firm commitment basis) by or through
     one or more underwriters of recognized standing under underwriting terms
     appropriate for such a transaction, (ii) the Registerable Securities so
     requested to be registered for sale for the account of holders of
     Registerable Securities are not also to be included in such underwritten
     offering (either because the Company has not been requested so to include
     such Registerable Securities pursuant to section 12.4(b) or, if requested
     to do so, is not obligated to do so under section 12.4(b)), and (iii) the
     managing underwriter of such underwritten offering shall inform the Company
     and holders of the Registerable Securities requesting such registration by
     letter of its belief that the distribution of all or a specified number of
     such Registerable Securities concurrently with the securities being
     distributed by such underwriters would interfere with the successful
     marketing of the securities being distributed by such underwriters (such
     writing to state the basis of such belief and the approximate number of
     such Registerable Securities which may be distributed without such effect),
     then the Company may, upon written notice to all holders of such
     Registerable Securities, reduce PRO RATA (if and to the extent stated by
     such managing underwriter to be necessary to eliminate such effect) the
     number of such Registerable Securities the registration of which shall have
     been requested by each holder of Registerable Securities so that the
     resultant aggregate number of such Registerable Securities so included in
     such registration shall be equal to the number of shares stated in such
     managing underwriter's letter.

          12.3. REGISTRATION PROCEDURES. If and whenever the Company is required
to effect the registration of any Registerable Securities under the Securities
Act as provided in sections 12.1 and 12.2 the Company shall promptly:

               (i)  prepare and (within sixty days after the end of the period
          within which requests for registration may be given to the Company or
          in any event as soon thereafter as possible) (in the case of a
          registration pursuant to section 12.1, such filing to be made within
          sixty days after the initial request of one or more Initiating Holders
          of Registerable Securities or in any event as soon thereafter as
          possible) file with the Commission the requisite registration
          statement to effect such registration (including such audited
          financial statements as may be required by the Securities Act or the
          rules and regulations promulgated thereunder) and thereafter use its
          reasonable best efforts to cause such registration statement to become
          and remain effective, PROVIDED, however, that the Company may
          discontinue any registration of its

                                       17
<PAGE>   18

          securities which are not Registerable Securities (and, under the
          circumstances specified in section 12.2(a), its securities which are
          Registerable Securities) at any time prior to the effective date of
          the registration statement relating thereto;

               (ii) prepare and file with the Commission such amendments and
          supplements to such registration statement and the prospectus used in
          connection therewith as may be necessary to keep such registration
          statement effective and to comply with the provisions of the
          Securities Act with respect to the disposition of all securities
          covered by such registration statement until such time as all of such
          securities have been disposed of in accordance with the intended
          methods of disposition by the seller or sellers thereof set forth in
          such registration statement or (i) in the case of a registration
          pursuant to section 12.1, the expiration of 180 days after such
          registration statement becomes effective, or (ii) in the case of a
          registration pursuant to section 12.2, the expiration of 90 days after
          such registration statement becomes effective;

               (iii) furnish to each seller of Registerable Securities covered
          by such registration statement and each underwriter, if any, of the
          securities being sold by such seller such number of conformed copies
          of such registration statement and of each such amendment and
          supplement thereto (in each case including all exhibits), such number
          of copies of the prospectus contained in such registration statement
          (including each preliminary prospectus and any summary prospectus) and
          any other prospectus filed under Rule 424 under the Securities Act, in
          conformity with the requirements of the Securities Act, and such other
          documents, as such seller and underwriter, if any, may reasonably
          request;

               (iv) use its reasonable best efforts to register or qualify all
          Registerable Securities and other securities covered by such
          registration statement under such other securities laws or blue sky
          laws of such jurisdictions as any seller thereof and any underwriter
          of the securities being sold by such seller shall reasonably request,
          to keep such registrations or qualifications in effect for so long as
          such registration statement remains in effect, and take any other
          action which may be reasonably necessary or advisable to enable such
          seller and underwriter to consummate the disposition in such
          jurisdictions of the securities owned by such seller, except that the
          Company shall not for any such purpose be required to qualify
          generally to do business as a foreign corporation in any jurisdiction
          wherein it would not but for the requirements of this subdivision (iv)
          be obligated to be so qualified, to subject itself to taxation in any
          such jurisdiction or to consent to general service of process in any
          such jurisdiction;

               (v)  use its reasonable best efforts to cause all Registerable
          Securities covered

                                       18
<PAGE>   19

          by such registration statement to be registered with or approved by
          such other governmental agencies or authorities as may be necessary to
          enable the seller or sellers thereof to consummate the disposition of
          such Registerable Securities;

               (vi) use its reasonable best efforts to furnish to each seller of
          Registerable Securities a signed counterpart, addressed to such seller
          and the underwriters, if any of

          (x)  an opinion of counsel for the Company, dated the effective date
     of such registration statement (or, if such registration includes an
     underwritten public offering, an opinion dated the date of the closing
     under the underwriting agreement), reasonably satisfactory in form and
     substance to such seller, and

          (y)  a "comfort" letter (or, in the case of such Person which does not
     satisfy the conditions for receipt of a "comfort" letter specified in
     Statement on Auditing Standards No. 72, an "agreed upon procedures"
     letter), dated the effective date of such registration statement (and, if
     such registration includes an underwritten public offering, a letter dated
     the date of the closing under the underwriting agreement), signed by the
     independent public accountants who have certified the Company's financial
     statements included in such registration statement,

covering substantially the same matters with respect to such registration
statement (and the prospectus included therein) and, in the case of the
accountants' letter, with respect to events subsequent to the date of such
financial statements, as are customarily covered in opinions of issuer's counsel
and in accountants' letters delivered to the underwriters in underwritten public
offerings of securities (with, in the case of an "agreed upon procedures"
letter, such modifications or deletions as may be required under Statement on
Auditing Standards No. 35) and, in the case of the accountants' letter, such
other financial matters, and, in the case of the legal opinion, such other legal
matters, as such seller (or the underwriters, if any) may reasonably request;

               (vii) notify the holders of Registerable Securities and the
          managing underwriter or underwriters, if any, promptly and confirm
          such advice in writing promptly thereafter:

          (v)  when the registration statement, the prospectus or any prospectus
supplement related thereto or post-effective amendment to the registration
statement has been filed, and, with respect to the registration statement or any
post-effective amendment thereto, when the same has become effective;

          (w)  of any request by the Commission for amendments or supplements to
the registration statement or the prospectus or for additional information;

                                       19
<PAGE>   20

          (x)  of the issuance by the Commission of any stop order suspending
the effectiveness of the registration statement or the initiation of any
proceedings by any Person for that purpose;

          (y)  if at any time the representations and warranties of the Company
made as contemplated by section 12.4 below cease to be true and correct;

          (z)  of the receipt by the Company of any notification with respect to
the suspension of the qualification of any Registerable Securities for sale
under the securities or blue sky laws of any jurisdiction or the initiation or
threat of any proceeding for such purpose;

               (viii) notify each seller of Registerable Securities covered by
          such registration statement, at any time when a prospectus relating
          thereto is required to be delivered under the Securities Act, upon the
          Company's discovery that, or upon the happening of any event as a
          result of which, the prospectus included in such registration
          statement, as then in effect, includes an untrue statement of a
          material fact or omits to state any material fact required to be
          stated therein or necessary to make the statements therein not
          misleading in the light of the circumstances then existing, and at the
          request of any such seller promptly prepare and furnish to such seller
          and each underwriter, if any, a reasonable number of copies of a
          supplement to or an amendment of such prospectus as may be necessary
          so that, as thereafter delivered to the purchasers of such securities,
          such prospectus shall not include an untrue statement of a material
          fact or omit to state a material fact required to be stated therein or
          necessary to make the statements therein not misleading in the light
          of the circumstances then existing;

               (ix) otherwise use its best efforts to comply with all applicable
          rules and regulations of the Commission, and make available to its
          security holders, as soon as reasonably practicable, an earnings
          statement covering the period of at least twelve months, but not more
          than eighteen months, beginning with the first full calendar month
          after the effective date of such registration statement, which
          earnings statement shall satisfy the provisions of Section 11(a) of
          the Securities Act and Rule 158 thereunder, and will furnish to each
          such seller prior to the filing thereof a copy of any amendment or
          supplement to such registration statement or prospectus and shall not
          file any thereof to which any such seller shall have reasonably
          objected on the grounds that such amendment or supplement does not
          comply in all material respects with the requirements of the
          Securities Act or of the rules or regulations thereunder;

               (x)  make available for inspection by a representative or
          representatives of the holders of Registerable Securities any
          underwriter participating in any disposition

                                       20
<PAGE>   21

          pursuant to the registration statement and any attorney or accountant
          retained by such selling holders or underwriter (each, an
          "INSPECTOR"), all financial and other records, pertinent corporate
          documents and properties of the Company (the "RECORDS"), and cause the
          Company's officers, directors and employees to supply all information
          reasonably requested by any such Inspector in connection with such
          registration in order to permit a reasonable investigation within the
          meaning of Section 11 of the Securities Act, PROVIDED that the Company
          shall not be required to comply with this subdivision (xi) if there is
          a reasonable likelihood, in the judgment of the Company, that such
          delivery could result in the loss of any attorney-client privilege
          related thereto; and PROVIDED FURTHER that Records which the Company
          determines, in good faith, to be confidential and which it notifies
          the Inspectors are confidential shall not be disclosed by the
          Inspectors (other than to any holder of Registerable Securities)
          unless (x) such Records have become generally available to the public
          or (y) the disclosure of such Records may be necessary or appropriate
          (A) in compliance with any law, rule, regulation or order applicable
          to any such Inspectors or holder of Registerable Securities, (B) in
          response to any subpoena or other legal process or (C) in connection
          with any litigation to which such Inspectors or any holder of
          Registerable Securities is a party;

               (xi) provide and cause to be maintained a transfer agent and
          registrar for all Registerable Securities covered by such registration
          statement from and after a date not later than the effective date of
          such registration statement;

               (xii) take such other actions as sellers of such Registerable
          Securities holding 51% of the shares so to be sold shall reasonably
          request in order to expedite or facilitate the disposition of such
          Registerable Securities;

               (xiii) use its best efforts to list all Registerable Securities
          covered by such registration statement on any securities exchange on
          which any of the securities of the same class as the Registerable
          Securities are then listed; and

               (xiv) use its best efforts to provide a CUSIP number for the
          Registerable Securities, not later than the effective date of the
          registration statement.

The Company may require each seller of Registerable Securities as to which any
registration is being effected to furnish the Company such information regarding
such seller and the distribution of such securities as the Company may from time
to time reasonably request in writing.

          Each holder of Registerable Securities shall be deemed to have agreed
by acquisition of such Registerable Securities that, upon receipt of any notice
from the Company of the occurrence

                                       21
<PAGE>   22

of any event of the kind described in subdivision (vii) or (viii) of this
section 12.3, such holder will forthwith discontinue such holder's disposition
of Registerable Securities pursuant to the registration statement relating to
such Registerable Securities until such holder's receipt of the copies of the
supplemented or amended prospectus contemplated by subdivision (vii) of this
section 12.3 and, if so directed by the Company, will deliver to the Company (at
the Company's expense) all copies, other than permanent file copies, then in
such holder's possession of the prospectus relating to such Registerable
Securities current at the time of receipt of such notice.

          In the event that, in the reasonable judgment of the Company, it is
necessary or advisable to suspend use of a prospectus included in a Registration
Statement due to pending material developments or other material events that
have not yet been publicly disclosed and as to which the Company believes public
disclosure would be detrimental to the Company, the Company shall notify all
sellers of Registerable Securities to such effect, and upon receipt of such
notice, each such seller of Registerable Securities shall promptly discontinue
any sales of Registerable Securities pursuant to Registration Statement until
such seller of Registerable Securities has received copies of a supplemented or
amended prospectus or until such seller of Registerable Securities is advised in
writing by the Company that the current prospectus may be used and has received
copies of any additional or supplemental filings that are incorporated or deemed
incorporated by reference in such prospectus. Notwithstanding anything to the
contrary herein, the Company shall not exercise its rights under this paragraph
to suspend sales of Registerable Securities for a period in excess of ninety
days in any 365 day-period.

          If any such registration or comparable statement refers to any holder
of Registerable Securities by name or otherwise as the holder of any securities
of the Company then such holder shall have the right to require (i) the
insertion therein of language, in form and substance satisfactory to such
holder, to the effect that the holding by such holder of such securities is not
to be construed as a recommendation by such holder of the investment quality of
the Company's securities covered thereby and that such holding does not imply
that such holder will assist in meeting any future financial requirements of the
Company, or (ii) in the event that such reference to such holder by name or
otherwise is not required by the Securities Act or any similar federal statute
then in force, the deletion of the reference to such holder.

          12.4. UNDERWRITTEN OFFERINGS.

          (a)  REQUESTED UNDERWRITTEN OFFERINGS. If requested by the
     underwriters for any underwritten offering by holders of Registerable
     Securities pursuant to a registration requested under section 12.1, the
     Company will enter into an underwriting agreement with such underwriters
     for such offering, such agreement to be satisfactory in substance and form
     to the Company, each such holder and the underwriters, and to contain such
     representations and warranties by the Company and such other terms as are
     generally prevailing in agreements

                                       22
<PAGE>   23

     of this type, including, without limitation, indemnities to the effect and
     to the extent provided in section 12.7. The holders of the Registerable
     Securities will cooperate with the Company in the negotiation of the
     underwriting agreement and will give consideration to the reasonable
     suggestions of the Company regarding the form thereof, PROVIDED that
     nothing herein contained shall diminish the foregoing obligations of the
     Company. The holders of Registerable Securities to be distributed by such
     underwriters shall be parties to such underwriting agreement and may, at
     their option, require that any or all of the representations and warranties
     by, and the other agreements on the part of, the Company to and for the
     benefit of such underwriters shall also be made to and for the benefit of
     such holders of Registerable Securities and that any or all of the
     conditions precedent to the obligations of such underwriters under such
     underwriting agreement be conditions precedent to the obligations of such
     holders of Registerable Securities. Any such holder of Registerable
     Securities shall not be required to make any representations or warranties
     to or agreements with the Company or the underwriters other than
     representations and warranties contained in a writing furnished by such
     holder expressly for use in such registration statement, customary
     representations and warranties contained in the relevant underwriting
     agreement, or agreements regarding such holder, such holder's Registerable
     Securities and such holder's intended method of distribution and any other
     representation required by law.

          (b)  INCIDENTAL UNDERWRITTEN OFFERINGS. If the Company at any time
     proposes to register any of its securities under the Securities Act as
     contemplated by section 12.2 and such securities are to be distributed by
     or through one or more underwriters, the Company will, if requested by any
     holder of Registerable Securities as provided in section 12.2 and subject
     to the provisions of section 12.2(b), use its best efforts to arrange for
     such underwriters to include all the Registerable Securities to be offered
     and sold by such holder among the securities to be distributed by such
     underwriters, PROVIDED that if the managing underwriter of such
     underwritten offering shall inform the holders of the Registerable
     Securities requesting such registration and the holders of any other
     securities which shall have exercised, in respect of such underwritten
     offering, registration rights comparable to the rights under section 12.2
     by letter of its belief that inclusion in such underwritten distribution of
     all or a specified number of such Registerable Securities or of such other
     shares of securities so requested to be included would interfere with the
     successful marketing of the securities (other than such Registerable
     Securities and other shares of securities so requested to be included) by
     the underwriters (such writing to state the basis of such belief and the
     approximate number of such Registerable Securities and shares of other
     securities so requested to be included which may be included in such
     underwritten offering without such effect), then the Company may, upon
     written notice to all holders of such Registerable Securities and of such
     other shares of securities so requested to be included, exclude pro rata
     from such underwritten offering (if and to the extent stated by such
     managing underwriter to be necessary to eliminate such effect) the number
     of such Registerable Securities and shares of such other securities so

                                       23
<PAGE>   24

     requested to be included the registration of which shall have been
     requested by each holder of Registerable Securities and by the holders of
     such other so that the resultant aggregate number of such Registerable
     Securities and of such other shares of securities so requested to be
     included which are included in such underwritten offering shall be equal to
     the approximate number of shares stated in such managing underwriter's
     letter. The holders of Registerable Securities to be distributed by such
     underwriters shall be parties to the underwriting agreement between the
     Company and such underwriters and may, at their option, require that any or
     all of the representations and warranties by, and the other agreements on
     the part of, the Company to and for the benefit of such underwriters shall
     also be made to and for the benefit of such holders of Registerable
     Securities and that any or all of the conditions precedent to the
     obligations of such underwriters under such underwriting agreement be
     conditions precedent to the obligations of such holders of Registerable
     Securities. Any such holder of Registerable Securities shall not be
     required to make any representations or warranties to or agreements with
     the Company or the underwriters other than representations, warranties or
     agreements regarding such holder, such holder's Registerable Securities and
     such holder's intended method of distribution and any other representation
     required by law. Notwithstanding anything to the contrary contained herein,
     in the event that any terms of this Section 12 are inconsistent with or
     conflict with the terms of the proviso to Section 5.01(b) of the Warrant
     Agreement dated as of September 3, 1998 between the Company and American
     Stock Transfer & Trust Company (the "UNIT AGREEMENT"), the terms of the
     Unit Agreement shall govern and the terms hereof shall be deemed to be
     amended insofar as is necessary to resolve such inconsistency or conflict.

          (c)  CONFIDENTIALITY. Any holder receiving any written notice from the
Company regarding the Company's plans to file a Registration Statement shall
treat such notice confidentially and shall not disclose such information to any
person other than as necessary to exercise its rights under this Warrant.

          (d)  PARTICIPATION IN UNDERWRITTEN OFFERINGS. No Person may
participate in any underwritten offering hereunder unless such Person (i) agrees
to sell such Person's securities on the basis provided in any underwriting
arrangements approved, subject to the terms and conditions hereof, by the
holders of a majority of Registerable Securities to be included in such
underwritten offering and (ii) completes and executes all questionnaires,
indemnities, underwriting agreements and other documents (other than powers of
attorney) required under the terms of such underwriting arrangements.
Notwithstanding the foregoing, no underwriting agreement (or other agreement in
connection with such offering) shall require any holder of Registerable
Securities to make any representations or warranties to or agreements with the
Company or the underwriters other than representations and warranties contained
in a writing furnished by such holder expressly for use in the related
registration statement, customary representations or warranties contained in the
relevant underwriting agreement, or agreements regarding such holder, such
holder's Registerable Securities

                                       24
<PAGE>   25

and such holder's intended method of distribution and any other representation
required by law.

          12.5. PREPARATION; REASONABLE INVESTIGATION. In connection with the
preparation and filing of each registration statement under the Securities Act
pursuant to this Warrant, the Company will give the holders of Registerable
Securities registered under such registration statement, their underwriters, if
any, and their respective counsel and accountants, the opportunity to
participate in the preparation of such registration statement, each prospectus
included therein or filed with the Commission, and each amendment thereof or
supplement thereto, and will give each of them such access to its books and
records and such opportunities to discuss the business of the Company with its
officers and the independent public accountants who have certified its financial
statements as shall be necessary, in the opinion of such holders' and such
underwriters' respective counsel, to conduct a reasonable investigation within
the meaning of the Securities Act, provided that the Company shall not be
required to comply with this section 12.5 if there is a reasonable likelihood,
in the judgment of the Company, that such delivery could result in the loss of
any attorney-client privilege related thereto; and provided further that Records
which the Company determines, in good faith, to be confidential and which it
notifies the holders of Registerable Securities are confidential shall not be
disclosed by the holders of Registerable Securities unless (x) such Records have
become generally available to the public or (y) the disclosure of such Records
may be necessary or appropriate (A) in compliance with any law, rule, regulation
or order applicable to any such holder of Registerable Securities, (B) in
response to any subpoena or other legal process or (C) in connection with any
litigation to which any such holder of Registerable Securities is a party.

          12.6. INDEMNIFICATION.

          (a)  INDEMNIFICATION BY THE COMPANY. In the event of any registration
     of any securities of the Company under the Securities Act, the Company
     will, and hereby does, indemnify and hold harmless in the case of any
     registration statement filed pursuant to section 12.1 or 12.2, the holder
     of any Registerable Securities covered by such registration statement, its
     directors and officers, each other Person who participates as an
     underwriter in the offering or sale of such securities and each other
     Person, if any, who controls such holder or any such underwriter within the
     meaning of the Securities Act, against any losses, claims, damages or
     liabilities, joint or several, to which such holder or any such director or
     officer or underwriter or controlling person may become subject under the
     Securities Act or otherwise, insofar as such losses, claims, damages or
     liabilities (or actions or proceedings, whether commenced or threatened, in
     respect thereof) arise out of or are based upon any untrue statement or
     alleged untrue statement of any material fact contained in any registration
     statement under which such securities were registered under the Securities
     Act, any preliminary prospectus, final prospectus or summary prospectus
     contained therein, or any amendment or supplement thereto, or any omission
     or alleged omission to state therein a material fact required to be stated
     therein or necessary to make the statements therein not misleading, and the
     Company

                                       25
<PAGE>   26

     will reimburse such holder and each such director, officer, underwriter and
     controlling person for any legal or any other expenses reasonably incurred
     by them in connection with investigating or defending any such loss, claim,
     liability, action or proceeding, PROVIDED that the Company shall not be
     liable in any such case to the extent that any such loss, claim, damage,
     liability (or action or proceeding in respect thereof) or expense arises
     out of or is based upon an untrue statement or alleged untrue statement or
     omission or alleged omission made in such registration statement, any such
     preliminary prospectus, final prospectus, summary prospectus, amendment or
     supplement in reliance upon and in conformity with written information
     furnished to the Company through an instrument duly executed by such holder
     specifically stating that it is for use in the preparation thereof and,
     PROVIDED, FURTHER that the Company shall not be liable to any Person who
     participates as an underwriter, in the offering or sale of Registerable
     Securities or to any other Person, if any, who controls such underwriter
     within the meaning of the Securities Act, in any such case to the extent
     that any such loss, claim, damage, liability (or action or proceeding in
     respect thereof) or expense arises out of such Person's failure to send or
     give a copy of the final prospectus, as the same may be then supplemented
     or amended, within the time required by the Securities Act to the Person
     asserting an untrue statement or alleged untrue statement or omission or
     alleged omission at or prior to the written confirmation of the sale of
     Registerable Securities to such Person if such statement or omission was
     corrected in such final prospectus. Such indemnity shall remain in full
     force and effect regardless of any investigation made by or on behalf of
     such holder or any such director, officer, underwriter or controlling
     person and shall survive the transfer of such securities by such holder.

          (b)  INDEMNIFICATION BY THE SELLERS. The Company may require, as a
     condition to including any Registerable Securities in any registration
     statement filed pursuant to section 12.3, that the Company shall have
     received an undertaking satisfactory to it from the prospective seller of
     such Registerable Securities, to indemnify and hold harmless (in the same
     manner and to the same extent as set forth in subdivision (a) of this
     section 12.6) the Company, each director of the Company, each officer of
     the Company and each other person, if any, who controls the Company within
     the meaning of the Securities Act, with respect to any statement or alleged
     statement in or omission or alleged omission from such registration
     statement, any preliminary prospectus, final prospectus or summary
     prospectus contained therein, or any amendment or supplement thereto, if
     such statement or alleged statement or omission or alleged omission was
     made in reliance upon and in conformity with written information furnished
     to the Company through an instrument duly executed by such seller
     specifically stating that it is for use in the preparation of such
     registration statement, preliminary prospectus, final prospectus, summary
     prospectus, amendment or supplement. Any such indemnity shall remain in
     full force and effect, regardless of any investigation made by or on behalf
     of the Company or any such director, officer or controlling person and
     shall survive the transfer of such securities by such seller.

                                       26
<PAGE>   27

          (c)  NOTICES OF CLAIMS, ETC. Promptly after receipt by an indemnified
     party of notice of the commencement of any action or proceeding involving a
     claim referred to in the preceding subdivisions of this section 12.6 and
     subdivision (f) below, such indemnified party will, if a claim in respect
     thereof is to be made against an indemnifying party, give written notice to
     the latter of the commencement of such action, PROVIDED that the failure of
     any indemnified party to give notice as provided herein shall not relieve
     the indemnifying party of its obligations under the preceding subdivisions
     of this section 12.6, except to the extent that the indemnifying party is
     actually prejudiced by such failure to give notice. In case any such action
     is brought against an indemnified party, unless in such indemnified party's
     reasonable judgment a conflict of interest between such indemnified and
     indemnifying parties may exist in respect of such claim, the indemnifying
     party shall be entitled to participate in and to assume the defense
     thereof, jointly with any other indemnifying party similarly notified, to
     the extent that the indemnifying party may wish, with counsel reasonably
     satisfactory to such indemnified party, and after notice from the
     indemnifying party to such indemnified party of its election so to assume
     the defense thereof, the indemnifying party shall not be liable to such
     indemnified party for any legal or other expenses subsequently incurred by
     the latter in connection with the defense thereof other than reasonable
     costs of investigation. No indemnifying party shall, without the consent of
     the indemnified party, consent to entry of any judgment or enter into any
     settlement of any such action which does not include as an unconditional
     term thereof the giving by the claimant or plaintiff to such indemnified
     party of a release from all liability, or a covenant not to sue, in respect
     to such claim or litigation. No indemnified party shall consent to entry of
     any judgment or enter into any settlement of any action for which indemnity
     is required to be provided by an indemnifying party hereunder without the
     consent of such indemnifying party; in no event shall the indemnifying
     party be required to pay the expenses of more than one law firm per
     jurisdiction as counsel for the indemnified party. The provisions of this
     subsection (c) shall also apply to a contribution pursuant to subsection
     (f) below.

          (d)  OTHER INDEMNIFICATION. Indemnification similar to that specified
     in the preceding subdivisions of this section 12.6 (with appropriate
     modifications) shall be given by the Company and each seller of
     Registerable Securities with respect to any required registration or other
     qualification of securities under any Federal or state law or regulation of
     any governmental authority, other than the Securities Act.

          (e)  INDEMNIFICATION PAYMENTS. The indemnification required by this
     section 12.6 shall be made by periodic payments of the amount thereof
     during the course of the investigation or defense, as and when bills are
     received or expense, loss, damage or liability is incurred.

                                       27
<PAGE>   28

          (f)  CONTRIBUTION. If the indemnification provided for in the
     preceding subdivisions of this section 12.6 is unavailable to an
     indemnified party in respect of any expense, loss, claim, damage or
     liability referred to therein, then each indemnifying party, in lieu of
     indemnifying such indemnified party, shall contribute to the amount paid or
     payable by such indemnified party as a result of such expense, loss, claim,
     damage or liability (i) in such proportion as is appropriate to reflect the
     relative benefits received by the Company on the one hand and the holder or
     underwriter, as the case may be, on the other from the distribution of the
     Registerable Securities or (ii) if the allocation provided by clause (i)
     above is not permitted by applicable law, in such proportion as is
     appropriate to reflect not only the relative benefits referred to in clause
     (i) above but also the relative fault of the Company on the one hand and of
     the holder or underwriter, as the case may be, on the other in connection
     with the statements or omissions which resulted in such expense, loss,
     damage or liability, as well as any other relevant equitable
     considerations. The relative fault of the Company on the one hand and of
     the holder or underwriter, as the case may be, on the other shall be
     determined by reference to, among other things, whether the untrue or
     alleged untrue statement of a material fact or omission to state a material
     fact relates to information supplied by the Company, by the holder or by
     the underwriter and the parties' relative intent, knowledge, access to
     information and opportunity to correct or prevent such statement or
     omission, PROVIDED that the foregoing contribution agreement shall not
     inure to the benefit of any indemnified party if indemnification would be
     unavailable to such indemnified party by reason of the provisions contained
     in the first sentence of subdivision (a) of this section 12.6, and in no
     event shall the obligation of any indemnifying party to contribute under
     this subdivision (f) exceed the amount that such indemnifying party would
     have been obligated to pay by way of indemnification if the indemnification
     provided for under subdivisions (a) or (b) of this section 12.6 had been
     available under the circumstances.

          The Company and the holders of Registerable Securities agree that it
     would not be just and equitable if contribution pursuant to this
     subdivision (f) were determined by PRO RATA allocation (even if the holders
     and any underwriters were treated as one entity for such purpose) or by any
     other method of allocation that does not take account of the equitable
     considerations referred to in the immediately preceding paragraph. The
     amount paid or payable by an indemnified party as a result of the losses,
     claims, damages and liabilities referred to in the immediately preceding
     paragraph shall be deemed to include, subject to the limitations set forth
     in the preceding sentence and subdivision (c) of this section 12.6, any
     legal or other expenses reasonably incurred by such indemnified party in
     connection with investigating or defending any such action or claim.

          Notwithstanding the provisions of this subdivision (f), no holder of
     Registerable Securities or underwriter shall be required to contribute any
     amount in excess of the amount by which (i) in the case of any such holder,
     the net proceeds received by such holder from the

                                       28
<PAGE>   29

     sale of Registerable Securities or (ii) in the case of an underwriter, the
     total price at which the Registerable Securities purchased by it and
     distributed to the public were offered to the public exceeds, in any such
     case, the amount of any damages that such holder or underwriter has
     otherwise been required to pay by reason of such untrue or alleged untrue
     statement or omission. No Person guilty of fraudulent misrepresentation
     (within the meaning of Section 11(f) of the Securities Act) shall be
     entitled to contribution from any person who was not guilty of such
     fraudulent misrepresentation.

          13.0 DEFINITIONS. As used herein, unless the context otherwise
requires, the following terms have the following respective meanings:

          ACQUIRING PERSON: With reference to the transactions referred to in
clauses (a) through (d) of section 3.1, the continuing or surviving corporation
of a consolidation or merger with the Company (if other than the Company), the
transferee of substantially all of the properties of the Company, the
corporation consolidating with or merging into the Company in a consolidation or
merger in connection with which the Common Stock is changed into or exchanged
for stock or other securities of any other Person or cash or any other property,
or, in the case of a capital reorganization or reclassification, the Company.

          ACQUISITION PRICE: As applied to the Common Stock, (a) the Market
Price on the date immediately preceding the date on which any transaction to
which section 3 applies is consummated, or (b) if a purchase, tender or exchange
offer is made by the Acquiring Person (or by any of its affiliates) to the
holders of the Common Stock and such offer is accepted by the holders of more
than 50% of the outstanding shares of Common Stock, the greater of (i) the price
determined in accordance with the provisions of the foregoing clause (a) of this
sentence and (ii) the Market Price on the date immediately preceding the
acceptance of such offer by the holders of more than 50% of the outstanding
shares of Common Stock.

          ADDITIONAL SHARES OF COMMON STOCK: All shares (including treasury
shares) of Common Stock issued or sold (or, pursuant to section 2.3 or 2.4,
deemed to be issued) by the Company after the date hereof, whether or not
subsequently reacquired or retired by the Company, other than

          (a   shares issued upon the exercise of the Warrants,

          (b   shares issued (including upon the exercise of options) to
     directors, advisors, employees or consultants of the Company pursuant to a
     stock option plan, employee stock purchase plan, restricted stock plan or
     other agreement approved by the board of directors of the Company,

                                       29
<PAGE>   30

          (c)  such additional number of shares as may become issuable upon the
     exercise of any of the securities referred to in the foregoing clauses (a)
     and (b) by reason of adjustments required pursuant to anti-dilution
     provisions applicable to such securities as in effect on the date hereof,
     but only if and to the extent that such adjustments are required as the
     result of the original issuance of the Warrants,

          (d)  such additional number of shares as may become issuable upon the
     exercise of any of the securities referred to in the foregoing clauses (a)
     and (b) by reason of adjustments required pursuant to anti-dilution
     provisions applicable to such securities as in effect on the date hereof,
     in order to reflect any subdivision or combination of Common Stock, by
     reclassification or otherwise, or any dividend on Common Stock payable in
     Common Stock,

          (e)  shares issued upon exercise of any warrants outstanding on the
     date hereof, and

          (f)  shares issued pursuant to the terms of the Company's 71/2% Series
     A Cumulative Convertible Preferred Stock, including as dividends thereon or
     pursuant to the conversion thereof.

          BUSINESS DAY: Any day other than a Saturday or a Sunday or a day on
which commercial banking institutions in the City of New York are authorized by
law to be closed. Any reference to "days" (unless Business Days are specified)
shall mean calendar days.

          COMMISSION: The Securities and Exchange Commission or any other
federal agency at the time administering the Securities Act.

          COMMON STOCK: As defined in the introduction to this Warrant, such
term to include any stock into which such Common Stock shall have been changed
or any stock resulting from any reclassification of such Common Stock, and all
other stock of any class or classes (however designated) of the Company the
holders of which have the right, without limitation as to amount, either to all
or to a share of the balance of current dividends and liquidating dividends
after the payment of dividends and distributions on any shares entitled to
preference.

          COMPANY: As defined in the introduction to this Warrant, such term to
include any corporation which shall succeed to or assume the obligations of the
Company hereunder in compliance with section 3.

          CONVERTIBLE SECURITIES: Any evidences of indebtedness, shares of stock
(other than Common Stock) or other securities directly or indirectly convertible
into or exchangeable for

                                       30
<PAGE>   31

Additional Shares of Common Stock.

          CREDIT AGREEMENT: That certain Credit Agreement, by and among Network
Plus, Inc., Network Plus Corp., the lenders party thereto from time to time,
Goldman Sachs Credit Partners L.P., as a joint lead arranger, book runner and as
syndication agent, FleetBoston Robertson Stephens Inc., as a joint lead
arranger, DLJ Bridge Finance, Inc., as documentation agent and Fleet National
Bank, as administrative agent and as collateral agent, dated as of September 27,
2000.

          CURRENT MARKET PRICE: On any date specified herein, the average daily
Market Price during the period of the most recent 20 days, ending on such date,
on which the national securities exchanges were open for trading, except that if
no Common Stock is then listed or admitted to trading on any national securities
exchange or quoted in the over-the-counter market, the Current Market Price
shall be the Market Price on such date.

          EXCHANGE ACT: The Securities Exchange Act of 1934, or any similar
federal statute, and the rules and regulations of the Commission thereunder, all
as the same shall be in effect at the time.

          INITIATING HOLDERS: Any holder or holders of Registerable Securities
holding at least 50% of the Registerable Securities (by number of shares at the
time issued and outstanding), and initiating a request pursuant to section 12.1
for the registration of all or part of such holder's or holders' Registerable
Securities.

          INSTITUTIONAL HOLDER: Any original purchaser of any Warrant, any
insurance company, pension fund, mutual fund, investment company, bank, savings
bank, savings and loan association, broker-dealer, investment adviser,
investment banking company, trust company or any finance or credit company, any
portfolio or any investment fund managed by any of the foregoing, any other
institutional investor and any nominee of any of the foregoing.

          MARKET PRICE: On any date specified herein, the amount per share of
the Common Stock, equal to (a) the last sale price of such Common Stock, regular
way, on such date or, if no such sale takes place on such date, the average of
the closing bid and asked prices thereof on such date, in each case as
officially reported on the principal national securities exchange on which such
Common Stock is then listed or admitted to trading, or (b) if such Common Stock
is not then listed or admitted to trading on any national securities exchange
but is designated as a national market system security by the NASD, the last
trading price of the Common Stock on such date, or (c) if there shall have been
no trading on such date or if the Common Stock is not so designated, the average
of the closing bid and asked prices of the Common Stock on such date as shown by
the NASD automated quotation system, or (d) if such Common Stock is not then
listed or admitted to trading on any national

                                       31
<PAGE>   32

exchange or quoted in the over-the-counter market, the higher of (x) the book
value thereof as determined by any firm of independent public accountants of
recognized standing selected by the Board of Directors of the Company as of the
last day of any month ending within 60 days preceding the date as of which the
determination is to be made or (y) the fair value thereof determined in good
faith by the Board of Directors of the Company as of a date which is within 18
days of the date as of which the determination is to be made.

          MARKET VALUE: Per share of common stock (or equivalent equity
interests) of the Acquiring Person or its Parent on any date specified herein,
(a) the average of the last sale prices, regular way, on the 20 consecutive
business days immediately preceding such date or, if there shall have been no
sale on any such day, the average of the closing bid and asked prices on such
date, in each case as officially reported on the principal national securities
exchange on which such common stock is at the time listed or admitted to
trading, or (b) if such common stock is not then listed or admitted to trading
on any national securities exchange, but is designated as a national market
system security by the NASD, the last trading price of the common stock on such
date, or if there shall have been no trading on such date or if the common stock
is not so designated, the average of the reported closing bid and asked prices
on such 20 days as shown by the NASD automated quotation system.

          NASD: The National Association of Securities Dealers, Inc.

          OPTIONS: Rights, options or warrants to subscribe for, purchase or
otherwise acquire either Additional Shares of Common Stock or Convertible
Securities.

          OTHER SECURITIES: Any stock (other than Common Stock) and other
securities of the Company or any other Person (corporate or otherwise) which the
holders of the Warrants at any time shall be entitled to receive, or shall have
received, upon the exercise of the Warrants, in lieu of or in addition to Common
Stock, or which at any time shall be issuable or shall have been issued in
exchange for or in replacement of Common Stock or Other Securities pursuant to
section 3 or otherwise.

          PARENT: As to any Acquiring Person any corporation which (a) controls
the Acquiring Person directly or indirectly through one or more intermediaries,
(b) is required to include the Acquiring Person in the consolidated financial
statements contained in such Parent's Annual Report on Form 10-K and (c) is not
itself included in the consolidated financial statements of any other person
(other than its consolidated subsidiaries).

          PERSON: A corporation, an association, a partnership, an organization,
a business, an individual, a government or political subdivision thereof or a
governmental agency.

          PURCHASER: As defined in the introduction to this Warrant.

                                       32
<PAGE>   33

          REGISTERABLE SECURITIES: (a) Any shares of Common Stock or Other
Securities issued or issuable upon exercise of this Warrant and (b) any
securities issued or issuable with respect to any securities referred to in the
foregoing subdivision by way of stock dividend or stock split or in connection
with a combination of shares, recapitalization, merger, consolidation or other
reorganization or otherwise. As to any particular Registerable Securities, once
issued such securities shall cease to be Registerable Securities when (a) a
registration statement with respect to the sale of such securities shall have
become effective under the Securities Act and such securities shall have been
disposed of in accordance with such registration statement, (b) they shall have
been distributed to the public pursuant to Rule 144 (or any successor provision)
under the Securities Act, (c) they shall have been otherwise transferred, new
certificates for them not bearing a legend restricting further transfer shall
have been delivered by the Company and subsequent disposition of them shall not
require registration or qualification of them under the Securities Act or any
similar state law then in force, (d) they shall have ceased to be outstanding
or, (e) such securities are eligible for sale pursuant to Rule 144(k) (or any
successor provision) under the Securities Act.

          REGISTRATION EXPENSES: All expenses incident to the Company's
performance of or compliance with section 12, including, without limitation, all
registration, filing and NASD fees, all fees and expenses of complying with
securities or blue sky laws, all word processing, duplicating and printing
expenses, messenger and delivery expenses, the fees and disbursements of counsel
for the Company and of its independent public accountants, including the
expenses of any special audits or "cold comfort" letters required by or incident
to such performance and compliance, the reasonable fees and disbursements of one
counsel retained by holder or holders and accountants retained by the holder or
holders of more than 50 % of the Registerable Securities being registered,
premiums and other costs of policies of insurance against liabilities arising
out of the public offering of the Registerable Securities being registered and
any fees and disbursements of underwriters customarily paid by issuers or
sellers of securities, but excluding underwriting discounts and commissions and
transfer taxes and fees and expenses of counsel for any holder except as set
forth above, if any, PROVIDED that, in any case where Registration Expenses are
not to be borne by the Company, such expenses shall not include salaries of
Company personnel or general overhead expenses of the Company, auditing fees,
premiums or other expenses relating to liability insurance required by
underwriters of the Company or other expenses for the preparation of financial
statements or other data normally prepared by the Company in the ordinary course
of its business or which the Company would have incurred in any event.

          RESTRICTED SECURITIES: (a) any Warrants bearing the applicable legend
set forth in section 9.2, (b) any shares of Common Stock (or Other Securities)
issued upon the exercise of Warrants which are evidenced by a certificate or
certificates bearing the applicable legend set forth in such section, (c) any
shares of Common Stock (or Other Securities) issued subsequent to the exercise
of any of the Warrants as a dividend or other distribution with respect to, or
resulting from

                                       33
<PAGE>   34

a subdivision of the outstanding shares of Common Stock (or Other Securities)
into a greater number of shares by reclassification, stock splits or otherwise,
or in exchange for or in replacement of the Common Stock (or Other Securities)
issued upon such exercise, which are evidenced by a certificate or certificates
bearing the applicable legend set forth in such section, and (d) unless the
context otherwise requires, any shares of Common Stock (or Other Securities)
issuable upon the exercise of Warrants, which, when so issued, will be evidenced
by a certificate or certificates bearing the applicable legend set forth in such
section.

          SECURITIES ACT: The Securities Act of 1933, or any similar federal
statute, and the rules and regulations of the Commission thereunder, all as the
same shall be in effect at the time.

          TRANSFER: Any sale, assignment, pledge or other disposition of any
security, or of any interest therein, which could constitute a "sale" as that
term is defined in section 2(3) of the Securities Act.

          VOTING SECURITIES: Stock of any class or classes (or equivalent
interests), if the holders of the stock of such class or classes (or equivalent
interests) are ordinarily, in the absence of contingencies, entitled to vote for
the election of the directors (or persons performing similar functions) of such
business entity, even though the right so to vote has been suspended by the
happening of such a contingency.

          WARRANT PRICE: As defined in section 2.1.

          WARRANTS: The common stock purchase warrants issued in connection with
this warrant agreement.

          WEIGHTED AVERAGE WARRANT PRICE: As to any holder of Restricted
Securities, the price determined by dividing (a) the sum of the aggregate
consideration previously paid by such holder upon the exercise of Warrants plus
the consideration payable upon the exercise of all Warrants held by such holder
by (b) the sum of (i) the aggregate number of shares previously received by such
holder upon the exercise of Warrants plus (ii) the number of shares which would
be received by such holder upon the exercise of all Warrants held by such
holder, based upon the Warrant Price in effect on the effective date of the
registration statement in respect of which the Weighted Average Warrant Price is
being determined.

          14.  REMEDIES. Each party hereto stipulates that the remedies at law
of the holder of this Warrant in the event of any default or threatened default
by the Company in the performance of or compliance with any of the terms of this
Warrant are not and will not be adequate and that, to the fullest extent
permitted by law, such terms may be specifically enforced by a decree for the
specific performance of any agreement contained herein or by an injunction
against a violation of any of the

                                       34
<PAGE>   35

terms hereof or otherwise.

          15.  NO RIGHTS OR LIABILITIES AS STOCKHOLDER. Nothing contained in
this Warrant shall be construed as conferring upon the holder hereof any rights
as a stockholder of the Company or as imposing any obligation on such holder to
purchase any securities or as imposing any liabilities on such holder as a
stockholder of the Company, whether such obligation or liabilities are asserted
by the Company or by creditors of the Company.

          16.  NOTICES. All notices and other communications under this Warrant
shall be in writing and shall be delivered, or mailed by registered or certified
mail, return receipt requested, by a nationally recognized overnight courier,
postage prepaid, addressed (a) if to any holder of any Warrant, at the
registered address of such holder as set forth in the register kept at the
principal office of the Company, or (b) if to the Company, to the attention of
its President at its principal office, PROVIDED that the exercise of any Warrant
shall be effective in the manner provided in section 1.

          17.  AMENDMENTS. This Warrant and any term hereof may be changed,
waived, discharged or terminated only by an instrument in writing signed by the
party against which enforcement of such change, waiver, discharge or termination
is sought. Notwithstanding the foregoing, any term of Section 12 of this Warrant
may be amended or waived upon the written consent of the Company and the holders
of Company Warrants (as defined below) representing at least a majority of the
number of shares of Common Stock then subject to the outstanding Company
Warrants; PROVIDED that any such amendment or waiver must apply to all Company
Warrants then outstanding. "COMPANY WARRANTS" shall mean this Warrant and all
other warrants in the series of warrants issued by the Company in connection
with the Credit Agreement, all dated the date hereof and of like tenor (other
than the number of shares of Common Stock issuable upon exercise thereof),
including any warrants issued upon partial exercise or transfer thereof.

          18.  EXPIRATION. The right to exercise this Warrant shall expire at
5.00 p.m., New York City time, on September 27, 2003. Notwithstanding anything
to the contrary set forth herein all rights to registration hereunder shall
expire at 5:00 p.m. on September 27, 2005.

          19.  DESCRIPTIVE HEADINGS. The headings in this Warrant are for
purposes of reference only and shall not limit or otherwise affect the meaning
hereof.

          20.  GOVERNING LAW. THIS WARRANT SHALL BE CONSTRUED AND ENFORCED IN
ACCORDANCE WITH, AND THE RIGHTS OF THE PARTIES SHALL BE GOVERNED BY, THE LAW OF
THE STATE OF DELAWARE, WITHOUT REGARD TO PRINCIPLES OF CONFLICT OF LAWS.

          21.  JUDICIAL PROCEEDINGS; WAIVER OF JURY. Any judicial proceeding
brought against

                                       35
<PAGE>   36

the Company with respect to this Warrant may be brought in any court of
competent jurisdiction in the State of New York or of the United States of
America for the Southern District of New York and, by execution and delivery of
this Warrant, each of the Company and holder (a) accepts, generally and
unconditionally, the nonexclusive jurisdiction of such courts and any related
appellate court, and irrevocably agrees to be bound by any judgment rendered
thereby in connection with this Warrant, subject to any rights of appeal, and
(b) irrevocably waives any objection the Company may now or hereafter have as to
the venue of any such suit, action or proceeding brought in such a court or that
such court is an inconvenient forum. The Company hereby waives personal service
of process and consents, that service of process upon it may be made by
certified or registered mail, return receipt requested, at its address specified
or determined in accordance with the provisions of section 16, and service so
made shall be deemed completed on the third Business Day after such service is
deposited in the mail or, if earlier, when delivered. Nothing herein shall
affect the right to serve process in any other manner permitted by law or shall
limit the right of any holder of any Warrant to bring proceedings against the
Company in the courts of any other jurisdiction. THE COMPANY HEREBY WAIVES TRIAL
BY JURY IN ANY JUDICIAL PROCEEDING INVOLVING, DIRECTLY, OR INDIRECTLY, ANY
MATTER (WHETHER SOUNDING IN TORT, CONTRACT OR OTHERWISE) IN ANY WAY ARISING OUT
OF, RELATED TO, OR CONNECTED WITH THIS WARRANT OR THE RELATIONSHIP ESTABLISHED
HEREUNDER.

                                       36
<PAGE>   37

                                   NETWORK PLUS CORP.

                                   By: /s/ James J. Crowley
                                       -----------------------------------------
                                   Title: EVP and COO

                                      S-1
<PAGE>   38

                              FORM OF SUBSCRIPTION

                 [To be executed only upon exercise of Warrant]

To:  [NAME OF ISSUER]

The undersigned registered holder of the within Warrant hereby irrevocably
exercises such Warrant for, and purchases thereunder, ______* shares of Common
Stock of [NAME OF ISSUER] and herewith makes payment of $        therefor, and
requests that the certificates for such shares be issued in the name of, and
delivered to        , whose address is .

Dated:
                         -------------------------------------------------------
                              (Signature  must  conform in all respects to name
                              of holder as specified on the face of Warrant)

                              --------------------------------------------------
                                   (Street Address)

                              --------------------------------------------------
                                   (City)(State)(Zip Code)

----------------------------
     *    Insert here the number of shares called for on the face of this
          Warrant (or, in the case of a partial exercise, the portion thereof as
          to which this Warrant is being exercised), in either case without
          making any adjustment for Additional Shares of Common Stock or any
          other stock or other securities or property or cash which, pursuant to
          the adjustment provisions of this Warrant, may be delivered upon
          exercise. In the case of partial exercise, a new Warrant or Warrants
          will be issued and delivered, representing the unexercised portion of
          the Warrant, to the holder surrendering the Warrant.

<PAGE>   39

                               FORM OF ASSIGNMENT

                 [To be executed only upon transfer of Warrant]

For value received, the undersigned registered holder of the within Warrant
hereby sells, assigns and transfers unto         the right represented by such
Warrant to purchase        shares of [Common Stock] of [NAME OF ISSUER] to which
such Warrant relates, and appoints             Attorney to make such transfer on
the books of [NAME OF ISSUER] maintained for such purpose, with full power of
substitution in the premises.

Dated:
                         -------------------------------------------------------
                              (Signature must conform in all respects to name of
                              holder as specified on the face of Warrant)

                              --------------------------------------------------
                                   (Street Address)

                              --------------------------------------------------
                                   (City)(State)(Zip Code)

Signed in the presence of:

<PAGE>   40

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

                               NETWORK PLUS CORP.

                          Common Stock Purchase Warrant

                         Dated as of September 27, 2000

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

     [THIS WARRANT AND ANY SHARES ACQUIRED UPON THE EXERCISE OF THIS WARRANT
     HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND
     MAY NOT BE TRANSFERRED, SOLD OR OTHERWISE DISPOSED OF EXCEPT WHILE A
     REGISTRATION UNDER SUCH ACT IS IN EFFECT OR PURSUANT TO AN EXEMPTION
     THEREFROM UNDER SUCH ACT. THIS WARRANT AND SUCH SHARES MAY BE TRANSFERRED
     ONLY IN COMPLIANCE WITH THE CONDITIONS SPECIFIED IN THIS WARRANT.]

<PAGE>   41

                                TABLE OF CONTENTS

<TABLE>
<S>                                                                             <C>
1.  Exercise of Warrant..........................................................1
1.1.  Manner of Exercise.........................................................1
1.2.  When Exercise Effective....................................................1
1.3.  Delivery of Stock Certificates, etc........................................1
1.4.  Payment by Application of Shares Otherwise Issuable........................2
1.5.  Exercise of Warrants.  ....................................................2

2.  Adjustment of Common Stock Issuable Upon Exercise............................2
2.1.  General; Warrant Price.....................................................2
2.2.  Adjustment of Warrant Price................................................2
2.2.1  Issuance of Additional Shares of Common Stock.............................2
2.2.2  Extraordinary Dividends and Distributions.................................3
2.3.  Treatment of Options and Convertible Securities............................3
2.4.  Treatment of Stock Dividends, Stock Splits, etc............................5
2.5.  Computation of Consideration...............................................5
2.6.  Adjustments for Combinations, etc..........................................6
2.7.  Minimum Adjustment of Warrant Price........................................6

3.  Adjustments for Consolidation, Merger, Sale of Assets, Reorganization, etc...6

4.  Other Dilutive Events........................................................7

5.  No Dilution or Impairment....................................................7

6.  Report as to Adjustments.....................................................7

7.  Notices of Corporate Action..................................................8

8.  Registration of Common Stock.................................................8

9.  Restrictions on Transfer.....................................................9
9.1.  Restrictive Legends........................................................9
9.2.  Notice of Proposed Transfer; Opinions of Counsel...........................9
9.3.  Termination of Restrictions...............................................10
</TABLE>

<PAGE>   42

<TABLE>
<S>                                                                             <C>
10.  Reservation of Stock, etc..................................................10

11.      Registration and Transfer of Warrants, etc.............................10
11.1.  Warrant Register; Ownership of Warrants..................................10
11.2.  Transfer and Exchange of Warrants........................................11
11.3.  Replacement of Warrants..................................................11

12.  Registration under Securities Act, etc.....................................11
12.1.  Registration on Request..................................................11
12.2.  Incidental Registration..................................................13
12.3.  Registration Procedures..................................................14
12.4.  Underwritten Offerings...................................................18
12.5.  Preparation; Reasonable Investigation....................................20
12.6.  Indemnification..........................................................21

13.  Definitions................................................................23

14.  Remedies...................................................................28

15.  No Rights or Liabilities as Stockholder. ..................................28

16.  Notices....................................................................28

17.  Amendments.................................................................29

18.  Expiration.................................................................29

19.  Descriptive Headings.......................................................29

20.  GOVERNING LAW..............................................................29

21.  Judicial Proceedings; Waiver of Jury.......................................29
</TABLE>

<PAGE>   43

<TABLE>
<S>                                                                             <C>
FORM OF SUBSCRIPTION............................................................53

FORM OF ASSIGNMENT..............................................................54
</TABLE><PAGE>   1
                                                                    Exhibit 10.7

                                      LEASE

                                     BETWEEN

                          NETWORK PLUS, INC., AS TENANT

                                       AND

                           TRUNKS UP LLC, AS LANDLORD

                              41 Pacella Park Drive
                               Randolph, MA 02368

<PAGE>   2

                                TABLE OF CONTENTS
<TABLE>
<CAPTION>

                                                                            PAGE
                                                                            ----
<S>               <C>                                                       <C>
ARTICLE 1         BASIC DATA; DEFINITIONS..................................   1
         1.1      BASIC DATA...............................................   1
         1.2      DEFINITIONS..............................................   2
         1.3      ENUMERATION OF EXHIBITS..................................   5

ARTICLE 2         PREMISES AND APPURTENANT RIGHTS..........................   5
         2.1      LEASE OF PREMISES........................................   5
         2.2      APPURTENANT RIGHTS.......................................   5
         2.3      OPTION TO EXTEND.........................................   5

ARTICLE 3         BASIC RENT...............................................   8
        3.1       PAYMENT..................................................   8

ARTICLE 4         COMMENCEMENT AND CONDITION...............................   8
         4.1      COMMENCEMENT DATE........................................   8
         4.2      CONDITION OF THE PREMISES................................   9

ARTICLE 5         USE OF PREMISES..........................................   9
         5.1      PERMITTED USE............................................   9
         5.2      INSTALLATIONS AND ALTERATIONS BY TENANT..................   9
         5.3      EXTRA HAZARDOUS USE......................................  11
         5.4      HAZARDOUS MATERIALS......................................  11
         5.5      LANDLORD'S RESPONSIBILITY RE: ASBESTOS TILE..............  12

ARTICLE 6         ASSIGNMENT AND SUBLETTING................................  12
         6.1      PROHIBITION..............................................  12
         6.2      ACCEPTANCE OF RENT.......................................  13
         6.3      EXCESS PAYMENTS..........................................  14
         6.4      LANDLORD'S RECAPTURE RIGHT...............................  14
         6.5      FURTHER REQUIREMENTS.....................................  15

ARTICLE 7         RESPONSIBILITY FOR REPAIRS AND CONDITIONOF PREMISES;
                    SERVICES TO BE FURNISHED BY TENANT.....................  18
         7.1      LANDLORD REPAIRS.........................................  18
         7.2      TENANT REPAIRS AND MAINTENANCE...........................  18
         7.3      FLOOR LOAD - HEAVY MACHINERY.............................  20
         7.4      ELECTRICITY SERVICE......................................  20
         7.5      INTERRUPTION OF SERVICE..................................  21
</TABLE>

<PAGE>   3

<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>               <C>                                                       <C>
ARTICLE 8         REAL ESTATE TAXES........................................  21
         8.1      PAYMENTS ON ACCOUNT OF REAL ESTATE TAXES.................  21
         8.2      ABATEMENT................................................  23

ARTICLE 9         OPERATING AND UTILITY EXPENSES...........................  24
         9.1      DEFINITIONS..............................................  24
         9.2      TENANT'S PAYMENT OF OPERATING EXPENSES...................  24
         9.3      UTILITY PAYMENTS.........................................  25

ARTICLE 10        INDEMNITY AND PUBLIC LIABILITY INSURANCE.................  25
         10.1     TENANT'S INDEMNITY.......................................  25
         10.2     TENANT INSURANCE.........................................  26
         10.3     TENANT'S RISK............................................  26
         10.4     WAIVER OF SUBROGATION....................................  27

ARTICLE 11        FIRE, EMINENT DOMAIN, ETC................................  27
         11.1     NOTICE OF DAMAGE.........................................  27
         11.2     MINOR CASUALTY...........................................  27
         11.3     MAJOR CASUALTY...........................................  28
         11.4     CASUALTY IN LAST SIX MONTHS..............................  29
         11.5     LEASE TERMINATION IN FINAL TWO YEARS.....................  29
         11.6     LANDLORD'S INSURANCE.....................................  29
         11.7     ABATEMENT OF RENT........................................  30
         11.8     CONDEMNATION.............................................  30
         11.9     CONDEMNATION AWARD.......................................  30

ARTICLE 12        HOLDING OVER; SURRENDER..................................  31
         12.1     HOLDING OVER.............................................  31
         12.2     SURRENDER OF PREMISES....................................  31

ARTICLE 13        RIGHTS OF MORTGAGEES; TRANSFER OF TITLE..................  32
         13.1     RIGHTS OF MORTGAGEES.....................................  32
         13.2     ASSIGNMENT OF RENTS AND TRANSFER OF TITLE................  32
         13.3     NOTICE TO MORTGAGEE......................................  33

ARTICLE 14        DEFAULT; REMEDIES........................................  33
         14.1     TENANT'S DEFAULT.........................................  33
         14.2     LANDLORD'S REMEDIES......................................  37
         14.3     ADDITIONAL RENT..........................................  39
         14.4     REMEDYING DEFAULTS.......................................  39
         14.5     REMEDIES CUMULATIVE......................................  39
         14.6     ATTORNEYS' FEES..........................................  39
         14.7     WAIVER...................................................  39
         14.8     LANDLORD'S DEFAULT.......................................  40
</TABLE>
<PAGE>   4

<TABLE>
<CAPTION>

                                                                            PAGE
                                                                            ----
<S>               <C>                                                       <C>
ARTICLE 15        MISCELLANEOUS PROVISIONS.................................  40
         15.1     RIGHTS OF ACCESS.........................................  40
         15.2     COVENANT OF QUIET ENJOYMENT..............................  40
         15.3     LANDLORD'S LIABILITY.....................................  41
         15.4     ESTOPPEL CERTIFICATE.....................................  41
         15.5     BROKERAGE................................................  41
         15.6     RULES AND REGULATIONS....................................  42
         15.7     INVALIDITY OF PARTICULAR PROVISIONS......................  42
         15.8     PROVISIONS BINDING, ETC..................................  42
         15.9     RECORDING................................................  42
         15.10    NOTICE...................................................  42
         15.11    WHEN LEASE BECOMES BINDING; ENTIRE AGREEMENT;
                  MODIFICATION.............................................  43
         15.12    PARAGRAPH HEADINGS AND INTERPRETATION OF SECTIONS........  43
         15.13    DISPUTE RESOLUTION.......................................  43
         15.14    WAIVER OF JURY TRIAL.....................................  44
         15.15    TIME IS OF THE ESSENCE...................................  44
         15.16    MULTIPLE COUNTERPARTS....................................  44
         15.17    GOVERNING LAW............................................  44

EXHIBIT A Legal Description of Land........................................ A-1

EXHIBIT B Site Plan of Building............................................ B-1

EXHIBIT C Commencement Date Letter......................................... C-1

EXHIBIT D Operating Expenses............................................... D-1

EXHIBIT E Rules and Regulations of Building................................ E-1
</TABLE>

<PAGE>   5
                                    L E A S E

         THIS LEASE is dated as of ______________, 2000 between the Landlord and
the Tenant named below, and is of space in the Building described below.

                                    ARTICLE 1
                             BASIC DATA; DEFINITIONS

         1.1 BASIC DATA. Each reference in this Lease to any of the following
terms shall be construed to incorporate the data for that term set forth in this
Section:

     LANDLORD:           Trunks Up LLC, a Delaware limited liability corporation

     LANDLORD'S ADDRESS: c/o Network Plus, Inc.
                             234 Copeland Street
                             Quincy, MA 02169
                             Attn: Mr. Robert Hale, Jr.

     TENANT:             Network Plus, Inc., a Massachusetts corporation

     TENANT'S ADDRESS:   41 Pacella Park Drive
                         Randolph, MA 02368
                         Attn: CFO and General Counsel

         PROPERTY: The land located in Randolph, Massachusetts, together with
the Building and other improvements thereon, all as more particularly described
in EXHIBIT A attached hereto.

         BUILDING: The building commonly known and numbered as 41 Pacella Park
Drive, consisting of 80,000 rentable square feet, as shown on the site plan
attached hereto as EXHIBIT B.

         PREMISES: The entire Property, including the Land and the Building, as
shown on the site plan attached hereto as EXHIBIT B.

         BASIC RENT: The Basic Rent is as follows:

<PAGE>   6
<TABLE>
<CAPTION>

----------------------------------------------------------------------------------------------------------
RENTAL PERIOD                                            ANNUAL BASIC RENT                 MONTHLY PAYMENT
----------------------------------------------------------------------------------------------------------
<S>                                                      <C>                               <C>
From the Commencement Date to February 28, 2009.         $1,200,000.00, based upon an      $100,000.00
                                                         annual lease rate of $15.00 per
                                                         square foot
----------------------------------------------------------------------------------------------------------

From March 1, 2009 to February 28, 2013.                 $1,360,000.00, based upon an      $113,333.33
                                                         annual lease rate of $17 per
                                                         square foot
----------------------------------------------------------------------------------------------------------
</TABLE>

         SCHEDULED COMMENCEMENT DATE: March 1, 2005.

         TERM: 8 years, commencing on the Commencement Date and expiring at the
close of the day immediately preceding the 9th anniversary of the Commencement
Date, except that if the Commencement Date is other than the first day of a
calendar month, the expiration of the Term shall be at the close of the last day
of the calendar month in which such anniversary falls. The Term shall include
any extension thereof that is expressly provided for by this Lease and that is
effected strictly in accordance with this Lease; if no extension of the Term is
expressly provided for by this Lease, no right to extend the Term shall be
implied by this provision.

         INITIAL GENERAL LIABILITY INSURANCE: $1,000,000 per
occurrence/$2,000,000 aggregate (combined single limit) for property damage,
bodily injury or death.

         PERMITTED USES: General office, warehousing and light manufacturing.

         1.2 DEFINITIONS. When used in Lease, the capitalized terms set forth
below shall bear the meanings set forth below.

         ADEQUATE ASSURANCE: As defined in SECTION 14.1.

         ADEQUATE ASSURANCE OF FUTURE PERFORMANCE:  As defined in SECTION 14.1.

         ADDITIONAL RENT: All charges and sums payable by Tenant as set forth in
this Lease, other than and in addition to Basic Rent.

         ALTERATIONS: As defined in SECTION 5.2.

         BANKRUPTCY CODE: As defined in SECTION 14.1.

         BASIC RENT: As defined in SECTION 1.1.
<PAGE>   7

         BUILDING: As defined in SECTION 1.1.

         BUSINESS DAY: All days except Saturdays, Sundays, and other days when
national banks in the state in which the property is located are not open for
business.

         COMMENCEMENT DATE: As defined in SECTION 4.1.

         COMMON FACILITIES: As defined in SECTION 2.2.

         DEFAULT OF TENANT:  As defined in SECTION 14.1.

         ENVIRONMENTAL CONDITION: Any disposal, release or threat of release of
Hazardous Materials on, from or about the Building or the Property or storage of
Hazardous Materials on, from or about the Building or the Property.

         ENVIRONMENTAL LAWS: Any federal, state and/or local statute, ordinance,
bylaw, code, rule and/or regulation now or hereafter enacted, pertaining to any
aspect of the environment or human health, including, without limitation, the
Comprehensive Environmental Response, Compensation and Liability Act of 1980, 42
U.S.C.ss.9601 et seq., the Resource Conservation and Recovery Act of 1976, 42
U.S.C.ss.6901 et seq., the Toxic Substances Control Act, 15 U.S.C.ss.2061 et
seq., the Federal Clean Water Act, 33 U.S.C.ss.1251, and the Federal Clean Air
Act, 42 U.S.C.ss.7401 et seq.

         EVENT OF BANKRUPTCY:  As defined in  SECTION 14.1.

         FORCE MAJEURE: Collectively and individually, strikes or other labor
trouble, fire or other casualty, acts of God, governmental preemption of
priorities or other controls in connection with a national or other public
emergency or shortages of fuel, supplies or labor resulting therefrom, or any
other cause, whether similar or dissimilar, beyond the reasonable control of the
party required to perform an obligation.

         HOLDER: As defined in SECTION 13.1.

         HAZARDOUS MATERIALS: Shall mean each and every element, compound,
chemical mixture, contaminant, pollutant, material, waste or other substance
which is defined, determined or identified as hazardous or toxic under any
Environmental Law, including, without limitation, any "oil," "hazardous
material," "hazardous waste," "hazardous substance" or "chemical substance or
mixture", as the foregoing terms (in quotations) are defined in any
Environmental Laws.

         INITIAL GENERAL LIABILITY INSURANCE: As defined in SECTION 1.1.

         LAND: The land that constitutes a portion of the Property.

         LANDLORD: As defined in SECTION 1.1.
<PAGE>   8

         LANDLORD'S ADDRESS: As defined in SECTION 1.1.

         MORTGAGE: As defined in SECTION 13.1.

         OPERATING EXPENSES:  As defined in SECTION 9.1.

         OPERATING YEAR:  As defined in SECTION 9.1.

         PERMITTED USES: As defined in SECTION 1.1.

         PLANS:  As defined in SECTION 4.2.

         PREMISES: As defined in SECTION 1.1.

         PROPERTY: As defined in SECTION 1.1.

         RULES AND REGULATIONS : As defined in SECTION 2.2.

         SCHEDULED COMMENCEMENT DATE: As defined in SECTION 1.1.

         SERVICE INTERRUPTION:  As defined in SECTION 7.6.

         SUCCESSOR: As defined in SECTION 13.1.

         TAXES:  As defined in SECTION 8.1.

         TAX YEAR:  As defined in SECTION 8.1.

         TENANT: As defined in SECTION 1.1.

         TENANT'S ADDRESS: As defined in SECTION 1.1.

         TENANT'S REMOVABLE PROPERTY:  As defined in SECTION 5.2.

         TERM: As defined in SECTION 1.1.

         1.3 ENUMERATION OF EXHIBITS. The following Exhibits are a part of this
Lease, are incorporated herein by reference attached hereto, and are to be
treated as a part of this Lease for all purposes. Undertakings contained in such
Exhibits are agreements on the part of Landlord and Tenant, as the case may be,
to perform the obligations stated therein.

                  Exhibit A - Legal Description of Land
                  Exhibit B - Site Plan of Building
                  Exhibit C - Commencement Date Letter

<PAGE>   9

                  Exhibit D - Operating Expenses
                  Exhibit E - Rules and Regulations

                                    ARTICLE 2
                         PREMISES AND APPURTENANT RIGHTS

         2.1 LEASE OF PREMISES. Landlord hereby leases to Tenant and Tenant
hereby leases from Landlord the Premises for the Term and upon the terms and
conditions hereinafter set forth.

         2.2      APPURTENANT RIGHTS.

                  (a) Tenant shall have, as appurtenant to the Premises, the
non-exclusive right to use, and permit its invitees to use in common with others
entitled thereto, the easements, rights of way or other rights, if any, which
are appurtenant to the Property pursuant to any recorded documents evidencing
such easements or rights; but such rights shall always be subject to such
conditions, rules and regulations from time to time established by Landlord
pursuant to SECTION 15.6 (the "RULES AND REGULATIONS") and to the right of
Landlord to designate and change from time to time such appurtenant rights
pursuant to the terms of the recorded documents evidencing such rights.

         2.3      OPTION TO EXTEND.

                  (a) Provided that, at the time of such exercise, (i) this
Lease is in full force and effect, (ii) no Default of Tenant shall have occurred
and be continuing (either at the time of exercise or at the commencement of an
Extended Term), and (iii) Tenant or its successor by merger or other transaction
in accordance with the terms of Section 6.1(b), shall then be occupying at least
fifty percent (50%) Premises and shall not have assigned or sublet more than
fifty percent (50%) of the Premises other than by a transaction permitted by the
terms of Section 6.1(b), Tenant shall have the right and option to extend the
Term of this Lease for two (2) extended terms (each an "Extended Term") of five
(5) years each by giving written notice to Landlord not later than twelve (12)
months nor earlier than fifteen (15) months prior to the expiration date of the
then current Term, subject to the terms of SECTION 11.5 below. Subject to the
terms of PARAGRAPH (b) below, the effective giving of such notice of extension
by Tenant shall automatically extend the Term of this Lease for the Extended
Term, and no instrument of renewal or extension need be executed. In the event
that Tenant fails timely to give such notice to Landlord, this Lease shall
automatically terminate at the end of then current Term and Tenant shall have no
further option to extend the Term of this Lease. The first Extended Term shall
commence on the day immediately succeeding the expiration date of the Initial
Term, and shall end on the day immediately preceding the fifth anniversary of
the first day of the Extended Term. The second Extended Term shall commence on
the day immediately succeeding the expiration of the first Extended Term and
shall end on the day immediately preceding the fifth anniversary of the first
day of the second Extended Term. Each Extended Term shall be on all the terms
and conditions of this Lease, except: (i) during the second Extended Term,
Tenant shall have no further option to extend the Term, and (ii) the Basic Rent
for each Extended Term

<PAGE>   10

shall be the greater of (x) ninety five percent (95%) of the Fair Market
Rental Value for the Premises as of the commencement of the applicable
Extended Term, determined pursuant to PARAGRAPH (b), and (y) the Basic Rent due
for the last year of the Term immediately prior to the commencement of the
applicable Extended Term (either the Initial Term or the first Extended Term, as
applicable).

         (b) Promptly after receiving Tenant's notice extending the Term of this
Lease pursuant to PARAGRAPH (a) above, Landlord shall provide Tenant with
Landlord's good faith estimate of the Fair Market Rental Value of the Premises
for the Extended Term based upon rents being paid by tenants entering into
leases in the area in which the Property is located. If Tenant is unwilling to
accept Landlord's estimate of Fair Market Rental Value as set forth in
Landlord's notice referred to above, and the parties are unable to reach
agreement thereon within thirty (30) days after the delivery of such notice by
Landlord, then Landlord and Tenant shall, not later than thirty (30) days after
the expiration of the aforesaid thirty (30) day period, each retain a real
estate professional with at least ten (10) years continuous experience in the
business of appraising or marketing commercial real estate in the greater Boston
area who shall, within thirty (30) days of his or her selection, prepare a
written report summarizing his or her determination of the Fair Market Rental
Value for such Extended Term. Landlord and Tenant shall simultaneously exchange
such reports; provided, however, if either party has not obtained such a report
within sixty (60) days after Tenant receives Landlord's notice, then the
determination set forth in the other party's report shall be final and binding
upon the parties. If both parties receive reports within such time and the lower
determination is within ten percent (10%) of the higher determination, then the
greater of (i) the annual Basic Rent in effect immediately preceding such
Extended Term or (ii) the average of the two determinations shall be deemed to
be the Fair Market Rental Value for such Extended Term. If the lower
determination is not within ten percent (10%) of the higher determination, then
Landlord and Tenant shall mutually select a person with the qualifications
stated above (the "Final Professional") to resolve the dispute as to the Fair
Market Rental Value for such Extended Term. If Landlord and Tenant cannot agree
upon the designation of the Final Professional within thirty (30) days of the
exchange of the first valuation reports, either party may apply to the American
Arbitration Association, the Greater Boston Real Estate Board, or any successor
thereto, for the designation of a Final Professional. Within ten (10) days of
the selection of the Final Professional, Landlord and Tenant shall each submit
to the Final Professional a copy of their respective real estate professional's
determination of the Fair Market Rental Value for such Extended Term. The Final
Professional shall not perform his or her own valuation, but rather shall,
within thirty (30) days after such submissions, select the submission which is
closest to the determination of the Fair Market Rental Value for such Extended
Term which the Final Professional would have made acting alone. The Final
Professional shall give notice of his or her selection to Landlord and Tenant
and such decision shall, subject to the terms of the last two (2) sentences of
this PARAGRAPH (b) below, be final and binding upon Landlord and Tenant,
provided, however, in no event shall the Fair Market Rental Value be less than
the annual Basic Rent in effect immediately preceding such Extended Term. Each
party shall pay the fees and expenses of its real estate professional and
counsel, if any, in connection with any proceeding under this paragraph, and the
parties shall each pay one-half of the fees and expenses of the Final
Professional. If Tenant is unwilling to accept the Fair Market Rental Value
determined in

<PAGE>   11

accordance with the process set forth above, then Tenant shall have the
option to rescind its notice of election to extend the Term of this Lease by
delivering written notice to Landlord within ten (10) days of, as applicable,
(i) receipt of both reports from each of Tenant's and Landlord's respective
selected real estate professionals, if the lower determination is within ten
percent (10%) of the higher determination, (ii) the expiration of the sixty (60)
day period after Tenant receives Landlord's notice of its estimate of Fair
Market Value, if Tenant is unwilling to accept such estimate and either party
has not obtained a report summarizing a real estate professional's determination
of Fair Market Value within such sixty (60) day period, or (iii) receipt of
notice from the Final Professional of his or her selection of the determination
of the Fair Market Rental Value. The effective giving of such notice by Tenant
shall rescind its notice of extension, and thereafter Tenant shall have no
further option to extend the Term of this Lease, and the Lease shall expire on
the originally scheduled expiration date of the Initial Term or, if Tenant has
extended the Initial Term in accordance with the terms hereof, the first
Extended Term, as applicable.

                                    ARTICLE 3
                                   BASIC RENT

         3.1      PAYMENT.

                  (a) Tenant agrees to pay the Basic Rent and Additional Rent to
Landlord, or as directed by Landlord, commencing on the Commencement Date,
without offset, abatement (except as provided in SECTION 11.4), deduction or
demand. Basic Rent shall be payable in equal monthly installments, in advance,
on the first day of each and every calendar month during the Term of this Lease,
to Landlord at Landlord's Address or at such other place as Landlord shall from
time to time designate by notice, in lawful money of the United States. In the
event that any installment of Basic Rent or any regularly scheduled payment of
Additional Rent is not paid within three (3) Business Days of when due, Tenant
shall pay, in addition to any charges under SECTION 14.4, at Landlord's request
an administrative fee equal to 5% of the overdue payment. Landlord and Tenant
agree that all amounts due from Tenant under or in respect of this Lease,
whether labeled Basic Rent, Additional Rent or otherwise, shall be considered as
rental reserved under this Lease for all purposes, including without limitation
regulations promulgated pursuant to the Bankruptcy Code, and including further
without limitation Section 502(b) thereof.

                  (b) Basic Rent for any partial month shall be pro-rated on a
daily basis, and if the first day on which Tenant must pay Basic Rent shall be
other than the first day of a calendar month, the first payment which Tenant
shall make to Landlord shall be equal to a proportionate part of the monthly
installment of Basic Rent for the partial month from the first day on which
Tenant must pay Basic Rent to the last day of the month in which such day
occurs, plus the installment of Basic Rent for the succeeding calendar month.

                                    ARTICLE 4
                           COMMENCEMENT AND CONDITION

         4.1 COMMENCEMENT DATE. The "COMMENCEMENT DATE" shall be the Scheduled

<PAGE>   12

Commencement Date set forth in SECTION 1.1 hereof.

Promptly upon the occurrence of the Commencement Date, Landlord and Tenant shall
execute a letter substantially in the form attached hereto as EXHIBIT C, but the
failure by either party to execute such a letter shall have no effect on the
Commencement Date, as hereinabove determined.

         4.2 CONDITION OF THE PREMISES. Tenant agrees to accept the Premises in
an as-is condition. Landlord shall have no obligation to perform any work or
construction. No improvements or alterations shall occur prior to the
Commencement Date. Should Tenant desire to perform any work or construction, the
same shall be done only in accordance with this Lease.

                                    ARTICLE 5
                                 USE OF PREMISES

         5.1      PERMITTED USE.

                  (a) Tenant agrees that the Premises shall be used and occupied
by Tenant only for Permitted Uses and for no other use without Landlord's
express written consent.

                  (b)      Tenant agrees to conform to the following provisions
during the Term of this Lease:

                           (i)   Intentionally omitted;

                           (ii)  Intentionally omitted.

                           (iii) Tenant shall not perform any act or carry on
         any practice which may injure the Premises, or cause any offensive
         odors or loud noise or constitute a nuisance or a menace;

                           (iv)  Subject to the terms of Section 7.1 below,
         Tenant shall, in its use of the Premises, comply with the requirements
         of all applicable governmental laws, rules and regulations, including,
         without limitation, the Americans With Disabilities Act of 1990 and the
         regulations of the Massachusetts Architectural Access Board; and

                           (v)   Tenant shall not abandon the Premises.

         5.2      INSTALLATIONS AND ALTERATIONS BY TENANT.

                  (a) Tenant shall make no alterations, additions (including,
for the purposes hereof, wall-to-wall carpeting), or improvements (collectively,
"ALTERATIONS") in or to the Premises without Landlord's prior written consent,
which consent shall not be unreasonably withheld or delayed with respect to
non-structural Alterations that do not affect or involve the Building's
electrical, plumbing or mechanical systems or any other Building systems. Any

<PAGE>   13

Alterations shall be in accordance with the Rules and Regulations in effect with
respect thereto and with plans and specifications meeting the requirements set
forth in the Rules and Regulations and approved in advance by Landlord. All work
shall (i) be performed in a good and workmanlike manner and in compliance with
all applicable laws, ordinances, rules and regulations; (ii) be made at Tenant's
sole cost and expense; (iii) become part of the Premises and the property of
Landlord except for (A) those Alterations designated by Landlord at the time
Landlord approves the Alterations pursuant to this Section to be removed upon
the expiration or earlier termination of the Term and/or (B) those Alterations
which can be removed without any damage to the Building caused by such removal
unless Tenant, at its expense, shall repair any such damage to the Building; and
(iv) be coordinated with any work being performed by Landlord in such a manner
as not to damage the Building or interfere with the construction or operation of
the Building. At Landlord's request, Tenant shall, before its work is started,
secure assurances satisfactory to Landlord in its reasonable discretion
protecting Landlord against claims arising out of the furnishing of labor and
materials for the Alterations.

         If any Alterations shall involve the removal of fixtures, equipment or
other property in the Premises which are not Tenant's Removable Property, such
fixtures, equipment or property shall be promptly replaced by Tenant at its
expense with new fixtures, equipment or property of like utility and of at least
equal quality.

                  (b) All articles of personal property and all business
fixtures, machinery and equipment and furniture owned or installed by Tenant
solely at its expense (including, without limitation, any of the foregoing items
which are paid for by the "Subtenant Improvement Allowance" as such term is
defined in that certain Sublease by and between PacSci Motion Control, Inc., as
sublandlord, and Tenant, as subtenant, dated as of October 22, 1999 (the
"PacSciSublease")) in the Premises ("TENANT'S REMOVABLE PROPERTY") shall remain
the property of Tenant and may be removed by Tenant at any time prior to the
expiration or earlier termination of the Term, provided that Tenant, at its
expense, shall repair any damage to the Building caused by such removal.

                  (c) Notice is hereby given that Landlord shall not be liable
for any labor or materials furnished or to be furnished to Tenant upon credit,
and that no mechanic's or other lien for any such labor or materials shall
attach to or affect the reversion or other estate or interest of Landlord in and
to the Premises, the Building or the Property. To the maximum extent permitted
by law, before such time as any contractor commences to perform work on behalf
of Tenant, such contractor (and any subcontractors) shall furnish a written
statement acknowledging the provisions set forth in the prior clause. Tenant
agrees to pay promptly when due the entire cost of any work done on behalf of
Tenant, its agents, employees or independent contractors, and not to cause or
permit any liens for labor or materials performed or furnished in connection
therewith to be filed against all or any part of the Property and to discharge
any such liens which may be so filed as set forth in the next sentence. If,
notwithstanding the foregoing, any lien is filed against all or any part of the
Property for work claimed to have been done for, or materials claimed to have
been furnished to, Tenant or its agents, employees or independent contractors,
Tenant, at its sole cost and expense, shall cause such lien to be dissolved
promptly after receipt of notice that such lien has been filed (and in any event
within fifteen (15) days of Tenant's receipt of notice or

<PAGE>   14

other knowledge thereof), by the payment thereof or by the filing of a bond
sufficient to accomplish the foregoing. If Tenant shall fail to discharge
any such lien, Landlord may, at its option, discharge such lien and treat the
cost thereof (including attorneys' fees incurred in connection therewith) as
Additional Rent payable upon demand, it being expressly agreed that such
discharge by Landlord shall not be deemed to waive or release the default of
Tenant in not discharging such lien. Tenant shall indemnify and hold Landlord
harmless from and against any and all expenses, liens, claims, liabilities and
damages based on or arising, directly or indirectly, by reason of the making of
any alterations, additions or improvements by or on behalf of Tenant to the
Premises under this Section, which obligation shall survive the expiration or
termination of this Lease.

                  (d) In the course of any work being performed by Tenant
(including, without limitation, the "field installation" of any of Tenant's
Removable Property), Tenant agrees to use labor compatible with that being
employed by Landlord for work in the Building or on the Property and not to
employ or permit the use of any labor or otherwise take any action which might
result in a labor dispute involving personnel providing services in the Building
or on the Property pursuant to arrangements made by Landlord.

         5.3 EXTRA HAZARDOUS USE. Tenant covenants and agrees that Tenant will
not do or permit anything to be done in or upon the Premises, or bring in
anything or keep anything therein, which shall increase the rate of property or
liability insurance on the Premises or the Property above the standard rate
applicable to Premises being occupied for the Permitted Uses. If the premium or
rates payable with respect to any policy or policies of insurance purchased by
Landlord with respect to the Property increases as a result of any act or
activity on or use of the Premises during the Term or payment by the insurer of
any claim arising from any act or neglect of Tenant, its employees, agents,
contractors or invitees, Tenant shall pay such increase, from time to time,
within fifteen (15) days after demand therefor by Landlord, as Additional Rent.

         5.4      HAZARDOUS MATERIALS.

                  (a) Tenant may use chemicals such as adhesives, lubricants,
ink, solvents and cleaning fluids of the kind and in amounts and in the manner
customarily found and used in business offices in order to conduct its business
at the Premises and to maintain and operate the business machines located in the
Premises. Except as specifically set forth in the immediately preceding
sentence, Tenant shall not use, store, handle, treat, transport, release or
dispose of any Hazardous Materials on or about the Premises or the Property
without Landlord's prior written consent, which Landlord may withhold or
condition in Landlord's sole discretion.

                  (b) Any handling, treatment, transportation, storage, disposal
or use of Hazardous Materials by Tenant in or about the Premises or the Property
and Tenant's use of the Premises shall comply with all applicable Environmental
Laws.

                  (c) Tenant shall indemnify, defend upon demand with counsel
reasonably acceptable to Landlord, and hold Landlord harmless from and against,
any liabilities, losses

<PAGE>   15

claims, damages, interest, penalties, fines, attorneys' fees, experts' fees,
court costs, remediation costs, and other expenses which result from the
use, storage, handling, treatment, transportation, release, threat of release or
disposal of Hazardous Materials in or about the Premises or the Property by
Tenant or Tenant's agents, employees, contractors or invitees.

                  (d) Tenant shall give written notice to Landlord as soon as
reasonably practicable of (i) any communication received by Tenant from any
governmental authority concerning Hazardous Materials which relates to the
Premises or the Property, and (ii) any Environmental Condition of which Tenant
is aware.

         5.5 LANDLORD'S RESPONSIBILITY RE: ASBESTOS TILE. Subject to Tenant's
compliance with all applicable laws, ordinances and regulations, including,
without limitation, any operation and maintenance plan, and the terms of this
Lease, Landlord agrees to indemnify and save Tenant harmless from and against
any claims, liabilities, losses, damages, interest, penalties, fines, attorneys'
fees, experts' fees and court costs and other expenses actually incurred by
Tenant arising from any enforcement action, third party claim for bodily injury
or property damage or remediation required by any Environmental Law, in each
case, resulting from the presence of any asbestos tiles or other asbestos
containing materials in the Building.

                                    ARTICLE 6
                            ASSIGNMENT AND SUBLETTING

         6.1      PROHIBITION.

                  (a) Tenant covenants and agrees that neither this Lease nor
the term and estate hereby granted, nor any interest herein or therein, will be
assigned, mortgaged, pledged, encumbered or otherwise transferred, whether
voluntarily, involuntarily, by operation of law or otherwise, and that neither
the Premises nor any part thereof will be encumbered in any manner by reason of
any act or omission on the part of Tenant, or used or occupied or permitted to
be used or occupied, by anyone other than Tenant, or for any use or purpose
other than a Permitted Use, or be sublet (which term, without limitation, shall
include granting of concessions, licenses and the like) in whole or in part, or
be offered or advertised for assignment or subletting by Tenant or any person
acting on behalf of Tenant, without, in each case, the prior written consent of
Landlord. Without limiting the foregoing, any agreement pursuant to which: (x)
Tenant is relieved from the obligation to pay, or a third party agrees to pay on
Tenant's behalf, all or any portion of the Basic Rent or Additional Rent under
this Lease; and/or (y) a third party undertakes or is granted by or on behalf of
Tenant the right to assign or attempt to assign this Lease or sublet or attempt
to sublet all or any portion of the Premises, shall for all purposes hereof be
deemed to be an assignment of this Lease and subject to the provisions of this
ARTICLE 6. The provisions of this PARAGRAPH (a) shall apply to a transfer (by
one or more transfers) of a controlling portion of or interest in the stock or
partnership or membership interests or other evidences of equity interests of
Tenant as if such transfer were an assignment of this Lease; provided that if
equity interests in Tenant at any time are or become traded on a public stock
exchange, the transfer of equity interests in Tenant on a public stock exchange
shall not be deemed an assignment within

<PAGE>   16

the meaning of this Article.

                  (b) The provisions of PARAGRAPH (a) shall not apply to either
(x) transactions with an entity into or with which Tenant is merged or
consolidated, or to which all or substantially all of Tenant's assets are
transferred, or (y) transactions with any entity which controls or is controlled
by Tenant or is under common control with Tenant; provided that in any such
event:

                           (i)   with respect to an assignment of the Lease,
         the successor to Tenant has a net worth, computed in accordance with
         generally accepted accounting principles consistently applied, at least
         equal to the net worth of Tenant immediately prior to such merger,
         consolidation or transfer;

                           (ii)  proof satisfactory to Landlord of such net
         worth shall have been delivered to Landlord at least ten (10) days
         prior to the effective date of any such transaction unless such
         delivery is prohibited by applicable securities laws or regulations,
         and in which case such proof shall be delivered promptly upon closing
         of the transaction, and in the absence thereof, the closing of such
         transaction shall automatically and immediately constitute a Default of
         Tenant; and

                           (iii) the assignee agrees directly with Landlord,
         by written instrument in form satisfactory to Landlord in its
         reasonable discretion, to be bound by all the obligations of Tenant
         hereunder (or, with respect to a sublease, those obligations of Tenant
         under the Lease which are binding upon the subleased premises)
         including, without limitation, the covenant against further assignment
         and subletting.

         6.2 ACCEPTANCE OF RENT. If this Lease be assigned, or if the Premises
or any part thereof be sublet or occupied by anyone other than Tenant, whether
or not in violation of the terms and conditions of the Lease, Landlord may, at
any time and from time to time, collect rent and other charges from the
assignee, subtenant or occupant, and apply the net amount collected to the rent
and other charges herein reserved, but no such assignment, subletting,
occupancy, collection or modification of any provisions of this Lease shall be
deemed a waiver of this covenant, or the acceptance of the assignee, subtenant
or occupant as a tenant or a release of Tenant from the further performance of
covenants on the part of Tenant to be performed hereunder. Any consent by
Landlord to a particular assignment, subletting or occupancy or other act for
which Landlord's consent is required under PARAGRAPH (a) of SECTION 6.1 shall
not in any way diminish the prohibition stated in PARAGRAPH (a) of SECTION 6.1
as to any further such assignment, subletting or occupancy or other act or the
continuing liability of the original named Tenant. No assignment or subletting
hereunder shall relieve Tenant from its obligations hereunder, and Tenant shall
remain fully and primarily liable therefor. Landlord may revoke any consent by
Landlord to a particular assignment, subletting or occupancy if the assignment
or sublease does not provide that the assignee, subtenant or other occupant
agrees to be independently bound by and upon all of the covenants, agreements,
terms, provisions and conditions set forth in this Lease on the part of Tenant
to be kept and performed.

<PAGE>   17

         6.3 EXCESS PAYMENTS. If Tenant assigns this Lease or sublets the
Premises or any portion thereof, Tenant shall pay to Landlord as Additional Rent
fifty percent (50%) of the amount, if any, by which (a) any and all compensation
received by Tenant as a result of such assignment or subletting, net of
reasonable expenses actually incurred by Tenant in connection with such
assignment or subletting, exceeds (b) in the case of an assignment, the Basic
Rent and Additional Rent under this Lease, and in the case of a subletting, the
portion of the Basic Rent and Additional Rent allocable to the portion of the
Premises subject to such subletting. Such payments shall be made on the date the
corresponding payments under this Lease are due. Notwithstanding the foregoing,
the provisions of this Section shall impose no obligation on Landlord to consent
to an assignment of this Lease or a subletting of all or a portion of the
Premises.

         6.4      LANDLORD'S RECAPTURE RIGHT.

                  (a) Notwithstanding anything herein to the contrary, in
addition to withholding or granting consent with respect to any proposed
assignment of this Lease or proposed sublease of all or a portion of the
Premises, Landlord shall have the right, to be exercised in writing within
thirty (30) days after written notice from Tenant seeking Landlord's consent to
assign this Lease or sublease all or any portion of the Premises, to terminate
this Lease (in the event of a proposed assignment) or recapture that portion of
the Premises to be subleased (in the event of a proposed sublease) for the
period of time equal to the term of the proposed sublease. In the case of a
proposed assignment, this Lease shall terminate as of the date (the "RECAPTURE
DATE") which is the later of (a) sixty (60) days after the date of Landlord's
election, and (b) the proposed effective date of such assignment or sublease, as
if such date were the last day of the Term of this Lease, subject to the
forgoing and succeeding provisions with respect to proposed subleases that are
for a term of less than the entire remainder of the Term. If Landlord exercises
the rights under this Section in connection with a proposed sublease, this Lease
shall be deemed amended to eliminate the proposed sublease premises from the
Premises as of the Recapture Date through the end of the term of the proposed
sublease, and thereafter, until the expiration of period of time equal to the
term of the proposed sublease, all Basic Rent and Additional Rent shall be
appropriately prorated to reflect the reduction of the Premises for such period
as of the Recapture Date until the expiration of period of time equal to the
term of the proposed sublease.

                 (b) Landlord's right set forth in SECTION 6.4(a) above to
recapture any portion of the Premises proposed to be subleased shall not apply
if (i) the portion of the Premises covered by such proposed sublease is,
together with any other portion of the Premises sublet previously by Tenant, for
an area of not more than 20,000 rentable square feet of the Premises; (ii) the
proposed sublease is for a term of not more than two (2) years; (iii) there
shall remain, at the expiration of proposed sublease, at least two (2) years
prior to the expiration of the Term of this Lease, including any applicable
Extension Term exercised at the time of Tenant's notice requesting Landlord's
consent to such proposed sublease; (iv) Tenant is occupying no less than fifty
percent (50%) of the Premises for the conduct of its business; and (v) no
Default of Tenant shall have occurred and be continuing beyond any applicable
notice and cure periods.

<PAGE>   18

         6.5 FURTHER REQUIREMENTS. Tenant shall reimburse Landlord on demand, as
an additional charge, for any out-of-pocket costs (including reasonable
attorneys' fees and expenses) incurred by landlord in connection with any actual
or proposed assignment or sublease or other act described in paragraph (a) of
SECTION 6.1, whether or not consummated, including the costs of making
investigations as to the acceptability of the proposed assignee or subtenant.
Any sublease to which Landlord gives its consent shall not be valid or binding
on Landlord unless and until Tenant and the sublessee execute a consent
agreement in form and substance reasonably satisfactory to Landlord. In the
event that Landlord consents to any sublease under the provisions of this
Article, any such sublease shall provide that: (i) the term of the sublease must
end no later than the last day of the Term of this Lease; (ii) no sublease shall
be valid, and no subtenant shall take possession of all or any part of the
Premises until a fully executed counterpart of such sublease has been delivered
to Landlord; (iii) such sublease is subject and subordinate to this Lease; (iv)
Landlord may enforce the provisions of the sublease, including collection of
rents; (v) in the event of termination of this Lease or reentry or repossession
of the Premises by Landlord, Landlord may, at its sole discretion and option,
take over all of the right, title and interest of Tenant, as sublessor, under
such sublease, and such subtenant shall, at Landlord's option, attorn to
Landlord but nevertheless Landlord shall not (A) be liable for any previous act
or omission of Tenant under such sublease; (B) be subject to any defense or
offset previously accrued in favor of the subtenant against Tenant; or (C) be
bound by any previous modification of such sublease made without Landlord's
written consent or by any previous prepayment of more than one month's rent.

         6.6 STANDARDS FOR CONSENT TO ASSIGNMENT AND SUBLETTING. In the event
Landlord does not exercise its option pursuant to Section 6.4 to recapture the
Premises or terminate this Lease in whole or in part and providing that Tenant
is not in default of any of Tenant's obligations under this Lease, Landlord's
consent to a proposed assignment or sublease shall not be unreasonably withheld,
conditioned or delayed, provided and upon condition that:

                           (i)   In Landlord's judgment the proposed assignee
                  or subtenant is engaged in a business which is in keeping with
                  the then standards of the Building and Property and the
                  proposed use is limited to the Permitted Use expressly
                  permitted under Section 1.1 and will not violate any negative
                  covenant as to use contained in any other lease of space in
                  the Property;

                           (ii)  The proposed assignee or subtenant is a
                  reputable person or entity with sufficient financial worth
                  considering the responsibility involved, based on evidence
                  provided by Tenant (and others) to Landlord, as determined by
                  Landlord in its reasonable discretion;

                           (iii) Neither (a) the proposed assignee or
                  sublessee nor (b) any person or entity which, directly or
                  indirectly, controls, is controlled by, or is under common
                  control with, the proposed assignee or sublessee or any person
                  or entity who controls the proposed assignee or sublessee, is
                  then an occupant of any part of the Property or any other
                  building owned or operated under a ground or underlying lease
                  by Landlord or any person or entity which, directly or
                  indirectly,
<PAGE>   19

                  controls, is controlled by, or is under common control
                  with Landlord or any person or entity who controls
                  Landlord, PROVIDED THAT any such party has space available to
                  offer for lease to any such proposed assignee or sublessee;

                           (iv)  The proposed assignee or sublessee is not a
                  person or entity with whom Landlord is then negotiating to
                  lease space at the Property;

                           (v)   The proposed sublease or assignment shall be
                  in form reasonably satisfactory to Landlord and shall comply
                  with the applicable provisions of this ARTICLE 6;

                           (vi)  Intentionally Omitted;

                           (vii) The amount of the aggregate rent to be paid
                  by the proposed subtenant is not less than the then current
                  market rent per rentable square foot for the Premises as
                  determined by Landlord in its sole discretion, reasonably
                  exercised; and

                           (viii) Tenant shall not have (a) advertised or
                  publicized in any way the availability of the Premises without
                  prior notice to and approval by Landlord, or (b) listed the
                  Premises for subletting, whether through a broker, agent,
                  representative, or otherwise at a rental rate less than the
                  Annual Basic Rent and Additional Rent at which Landlord is
                  then offering to lease other space in the Building.

                                    ARTICLE 7
                    RESPONSIBILITY FOR REPAIRS AND CONDITION
                 OF PREMISES; SERVICES TO BE FURNISHED BY TENANT

         7.1      LANDLORD REPAIRS.

                  (a) Except as otherwise provided in this Lease, Landlord
agrees to keep in good order, condition and repair the roof, and the other
structural components of the Building consisting of the structural walls,
footings, foundations, floor slabs, columns, girders, load bearing interior
walls (but specifically excluding all plumbing, mechanical, electrical, heating,
ventilation and air conditioning systems), except that Landlord shall in no
event be responsible to Tenant for the repair of any exterior or interior glass
in the Building, the doors (or related glass and finish work) to the Building,
or any condition in the Premises or the Building caused by any act or neglect of
Tenant, its invitees or contractors, including, without limitation, any damage
to the roof caused by Tenant's placement of equipment thereon in excess of the
design criteria and performance standards of the roof. Landlord shall not be
responsible to make any improvements or repairs to the Building other than as
expressly in this SECTION 7.1 provided, unless expressly provided otherwise in
this Lease.

                  (b) Landlord shall never be liable for any failure to make
repairs which

<PAGE>   20

Landlord has undertaken to make under the provisions of this SECTION 7.1
or elsewhere in this Lease, unless Tenant has given notice to Landlord of
the need to make such repairs, and Landlord has failed to commence to make such
repairs within a reasonable time after receipt of such notice, or fails to
proceed with reasonable diligence to complete such repairs.

                  (c) Without limiting any term of SECTION 5.2 above, in the
event of any change after the Lease Commencement Date in any law, code, or
ordinance (i) affecting office buildings generally, or (ii) affecting generally
buildings used for the Permitted Uses hereunder which, by itself and without any
Alterations to the Building or changes in Tenant's use thereof, requires a
change in the Building (other than Tenant's Alterations or fixtures) into
compliance with such law, code or ordinance, Landlord shall take such steps as
are reasonablely necessary to bring the Building (other than Tenant's
Alterations or fixtures) into compliance with the same, and the costs thereof
shall be an Operating Expense. Without limiting any other term of this Lease,
all costs and expenses incurred by Landlord for making repairs or replacements
described in this Section 7.1, shall be included in the Operating Expenses as
described in Section 9.2 above to be paid by Tenant, in accordance with the
calculation set forth in item 6 of EXHIBIT D attached hereto, other than
structural repairs or replacements to the roof, the structural walls, footings,
foundations, floor slabs, columns, girders, and load bearing interior walls.

         7.2      TENANT REPAIRS AND MAINTENANCE.

                  (a) Except as otherwise provided in this Lease, Tenant agrees
to keep in good order, condition and repair each and every part of the Premises,
including without limitation, exterior walls (including exterior glass) and all
plumbing, mechanical, electrical, heating, ventilation and air conditioning
systems (collectively, "BUILDING SYSTEMS"), excepting only reasonable wear and
tear of the Premises; and Tenant shall surrender the Premises, at the end of the
Term, in such condition. Without limitation, Tenant shall comply with all laws,
codes and ordinances from time to time in effect and all directions, rules and
regulations of governmental agencies having jurisdiction, and the standards
recommended by the local Board of Fire Underwriters applicable to Tenant's use
and occupancy of the Premises, and shall, at Tenant's expense, obtain all
permits, licenses and the like required thereby. Subject to SECTION 10.4
regarding waiver of subrogation, Tenant shall be responsible for the cost of
repairs which may be made necessary by reason of damage to the Building caused
by any act or neglect of Tenant, or its contractors or invitees (including any
damage by fire or other casualty arising therefrom). Tenant shall also keep and
maintain all the Land in a good and clean order, condition and repair, free of
snow and ice and accumulation of rubbish, and shall keep and maintain all
landscaped areas on the Property in a neat and orderly condition.

                  (b) If repairs are required to be made by Tenant pursuant to
the terms hereof, and Tenant fails to make the repairs, upon not less than
fifteen (15) days' prior written notice (except that no notice shall be required
in the event of an emergency), Landlord may make or cause such repairs to be
made (but shall not be required to do so), and the provisions of SECTION 14.4
shall be applicable to the costs thereof. Landlord shall not be responsible to
Tenant for any loss or damage whatsoever that may accrue to Tenant's stock or
business by reason of Landlord's making such repairs.

<PAGE>   21

                  (c) Except as set forth below with respect to the Building
Systems, notwithstanding anything to the contrary in this Lease, in no event
shall Tenant be obligated to make any repairs or replacements which would
constitute capital expenditures under generally accepted accounting principles,
which repairs and replacements shall be made by Landlord pursuant to Section
7.1, PROVIDED, HOWEVER, that the cost of any expenditures by Landlord which are
capital in nature, as referred to above, shall, pursuant to Section 7.1, be
included in the Operating Expenses to be paid by Tenant as set forth in Section
9.2, amortized over the useful life of such replacement item in accordance with
the provisions of Item 6 of EXHIBIT D attached hereto, and Tenant shall
reimburse Landlord therefore in accordance therewith.

                  (d) Without limiting any other term of this Lease, Tenant
shall maintain the Building Systems in accordance with its obligations under
Section 7.2(a), provided that if Tenant shall make any replacement of a capital
nature, as determined in accordance with generally accepted principles of
accounting, to the Building Systems during the two (2) year period immediately
preceding the expiration or earlier termination of this Lease (including,
without limitation, any Extended Term), unless such termination is a result of a
Default of Tenant, then Landlord shall promptly reimburse Tenant for the
unamortized cost thereof as of the date of expiration or earlier termination of
this Lease, it being understood and agreed that Landlord's payment obligation
hereunder shall survive the expiration or termination of this Lease. The
unamortized cost shall be determined in accordance with generally accepted
principles of accounting.

         7.3      FLOOR LOAD - HEAVY MACHINERY.

                  (a) Tenant shall not place a load upon any floor in the
Premises exceeding the floor load per square foot of area which such floor was
designed to carry and which is allowed by law. Landlord reserves the right to
prescribe, in its reasonable discretion, the weight and position of all business
machines and mechanical equipment, including safes, which shall be placed so as
to distribute the weight. Business machines and mechanical equipment shall be
placed and maintained by Tenant at Tenant's expense in settings sufficient, in
Landlord's reasonable judgment, to absorb and prevent vibration, noise and
annoyance. Tenant shall not move any safe, heavy machinery, heavy equipment,
freight, bulky matter or fixtures into or out of the Building without Landlord's
prior consent, which consent not to be unreasonably withheld or delayed, but
which may include a requirement to provide insurance, naming Landlord as an
insured, in such amounts as Landlord may deem reasonable.

                  (b) If any such safe, machinery, equipment, freight, bulky
matter or fixtures requires special handling, Tenant agrees to employ only
persons holding a Master Rigger's License to do such work, and that all work in
connection therewith shall comply with applicable laws and regulations. Any such
moving shall be at the sole risk and hazard of Tenant, and Tenant will
exonerate, indemnify and save Landlord harmless against and from any liability,
loss, injury, claim or suit resulting directly or indirectly from such moving.

         7.4      ELECTRICITY SERVICE.

<PAGE>   22

                  (a) The Premises shall be separately metered for electricity
such that the applicable public utility company can provide electricity directly
to the Premises, and Tenant shall be responsible for payment of all electricity
charges directly to such utility (including electricity for all lighting,
heating, ventilation and air conditioning in the Premises). Landlord shall
permit Landlord's existing wires, risers, conduits and other electrical
equipment to be used to supply electricity to Tenant at the Premises, provided
Tenant's demand requirements shall not exceed watts per rentable square foot for
standard single-phase volt alternating current, and Tenant agrees in its use of
the Premises (i) not to exceed such requirements, and (ii) that its total
connected lighting load will not exceed the maximum from time to time permitted
under applicable governmental regulations. If, without in any way derogating
from the foregoing limitation, Tenant shall require electricity in excess of the
requirements set forth above, provided Tenant first obtains Landlord's consent
(which Landlord may withhold in its reasonable discretion), Tenant may perform
the work necessary to supply such additional service or equipment, at Tenant's
sole cost and expense and subject to the requirements of SECTION 5.2 of this
Lease. In order to assure that the foregoing requirements are not exceeded and
to avert possible adverse effect on the Building's electric system, Tenant shall
not, without Landlord's prior consent, connect any fixtures, appliances or
equipment to the Building's electric distribution system other than personal
computers, facsimile transceivers, typewriters, pencil sharpeners, adding
machines, photocopiers, word and data processors, clocks, radios, hand-held or
desk top calculators, Dictaphones, desktop computers and other similar small
electrical equipment normally found in business offices unless Tenant continues
to comply with the provisions of this Section 7.4(a) or Tenant performs the work
necessary to make the repairs and/or replacements to the Building's electrical
systems required by Tenant's electrical demands and usage in excess of the
requirements set forth in this Section 7.4(a).

                  (b) From time to time during the Term of this Lease, Landlord
shall have the right to have an electrical consultant selected by Landlord make
a survey of Tenant's electric usage, the result of which survey shall be
conclusively binding upon Landlord and Tenant. In the event that such survey
shows that Tenant has exceeded the requirements set forth in PARAGRAPH (a), in
addition to any other rights Landlord may have hereunder, Tenant shall, upon
demand, reimburse Landlord for the cost of such survey and Tenant shall, upon
demand, perform the work necessary to make the repairs and/or replacements to
the Building's electrical systems required by Tenant's electrical demands and
usage in excess of the requirements set forth in PARAGRAPH (a).

         7.5      INTERRUPTION OF SERVICE.

                  (a) Landlord shall not be responsible in any manner for any
suspension, interruption or curtailment of any services or utilities to the
Premises, regardless of the cause thereof, and no such suspension, interruption
or curtailment shall give rise to any claim for abatement of rent or other
compensation to Tenant from Landlord, nor shall Tenant claim any direct,
indirect or consequential damages or constructive eviction on account thereof,
nor shall this Lease or any obligation of Tenant be affected thereby.

<PAGE>   23

                                    ARTICLE 8
                                REAL ESTATE TAXES

         8.1      PAYMENTS ON ACCOUNT OF REAL ESTATE TAXES.

                  (a) "TAX YEAR" shall mean a twelve month period commencing on
March 1, 2005 and falling wholly or partially within the Term, and "TAXES" shall
mean (i) all taxes, assessments (special or otherwise), levies, fees and all
other government levies, exactions and charges of every kind and nature, general
and special, ordinary and extraordinary, foreseen and unforeseen, which are, at
any time prior to or during the Term, imposed or levied upon or assessed against
the Property or any portion thereof, or against any Basic Rent, Additional Rent
or other rent of any kind or nature payable to Landlord by anyone on account of
the ownership, leasing or operation of the Property, or which arise on account
of or in respect of the ownership, development, leasing, operation or use of the
Property or any portion thereof; (ii) all gross receipts taxes or similar taxes
imposed or levied upon, assessed against or measured by any Base Rent,
Additional Rent or other rent of any kind or nature or other sum payable to
Landlord by anyone on account of the ownership, development, leasing, operation,
or use of the Property or any portion thereof; (iii) all value added, use and
similar taxes at any time levied, assessed or payable on account of the
ownership, development, leasing, operation, or use of the Property or any
portion thereof; and (iv) reasonable expenses of any proceeding for abatement of
any of the foregoing items included in Taxes, provided Landlord prevails in such
abatement proceeding; but the amount of special taxes or special assessments
included in Taxes shall be limited to the amount of the installment (plus any
interest, other than penalty interest, payable thereon) of such special tax or
special assessment required to be paid during the year in respect to which such
Taxes are being determined. There shall be excluded from Taxes all income,
estate, succession, inheritance and transfer taxes of Landlord; provided,
however, that if at any time during the Term the present system of ad valorem
taxation of real property shall be changed so that a capital levy, franchise,
income, profits, sales, rental, use and occupancy, or other tax or charge shall
in whole or in part be substituted for, or added to, such ad valorem tax and
levied against, or be payable by, Landlord with respect to the Property or any
portion thereof, such tax or charge shall be included in the term "TAXES" for
the purposes of this Article.

                  (b) Tenant shall pay to Landlord (or directly to the taxing
authority, as Landlord shall direct from time to time), as Additional Rent, an
amount equal to the amount of Taxes attributable to each Tax Year, such amount
to be apportioned for any portion of a Tax Year in which the Commencement Date
falls or the Term expires.

                  (c) Estimated payments by Tenant on account of Taxes shall be
made on the first day of each and every calendar month during the Term of this
Lease, in the fashion herein provided for the payment of Basic Rent. The monthly
amount so to be paid to Landlord shall be sufficient to provide Landlord by the
time real estate tax payments are due with a sum equal to Tenant's required
payment, as reasonably estimated by Landlord from time to time, on account of
Taxes for the then current Tax Year. Promptly after receipt by Landlord of bills
for such Taxes, Landlord shall advise Tenant of the amount thereof and the
computation of Tenant's payment on account thereof. If estimated payments
theretofore made by Tenant for the Tax Year

<PAGE>   24

covered by such bills exceed the required payment on account thereof for
such Tax Year, Landlord shall credit the amount of overpayment against
subsequent obligations of Tenant on account of Taxes (or promptly refund such
overpayment if the Term of this Lease has ended and Tenant has no further
obligation to Landlord other than the indemnity obligations set forth herein
which survive the termination of this Lease, provided that Landlord has no
claims pursuant thereto at such time); but if the required payments on account
thereof for such Tax Year are greater than estimated payments theretofore made
on account thereof for such Tax Year, Tenant shall pay the difference to
Landlord within thirty (30) days after being so advised by Landlord, and the
obligation to make such payment for any period within the Term shall survive
expiration of the Term.

         8.2      ABATEMENT.

                  (a) If Landlord shall receive any tax refund or reimbursement
of Taxes or sum in lieu thereof with respect to any Tax Year all or any portion
of which falls within the Term, then out of any balance remaining thereof after
deducting Landlord's expenses in obtaining such refund, Landlord shall pay to
Tenant, provided there does not then exist a Default of Tenant, an amount equal
to such refund or reimbursement or sum in lieu thereof (exclusive of any
interest other than interest received from the taxing authority on amounts
previously paid by Tenant either directly to the taxing authority or to Landlord
as Additional Rent and included in such refund, reimbursement or sum in lieu
thereof paid to Landlord by the taxing authority, and apportioned if such refund
is for a Tax Year a portion of which falls outside the Term,); provided, that in
no event shall Tenant be entitled to receive more than the payments made by
Tenant on account of Taxes for such Tax Year pursuant to PARAGRAPH (b) of
SECTION 8.1 or to receive any payments or abatement of Basic Rent if Taxes for
any year are less than Base Taxes or if Base Taxes are abated.

                  (b) If Tenant desires to initiate and prosecute any
proceedings permitted by law for the purpose of obtaining an abatement or
reduction of any Taxes assessed against the Property with respect to any Tax
Year all of any portion of which falls within the Term, and notifies Landlord in
writing of such intent, then unless Landlord shall notify Tenant in writing
within ten (10) Business Days following Tenant's notice to Landlord that
Landlord will initiate such a tax review, Tenant, upon prior written notice to
Landlord, shall have the right at its own cost and expense to initiate and
prosecute any proceedings permitted by law for the purpose of obtaining an
abatement or reduction of any Taxes assessed against the Property with respect
to any Tax Year all of any portion of which falls within the Term. Tenant may
take such action in the name of Landlord, and Landlord shall cooperate with
Tenant as Tenant may reasonably require in connection with bringing such
proceedings to a successful conclusion, including joining in, and signing of,
any protest or pleading which Tenant may deem it advisable to file. Any
penalties or interest charges imposed in connection with tax reduction
proceedings commenced by Tenant shall be the sole responsibility of Tenant and
shall be paid promptly. If Tenant initiates such a proceeding, Tenant agrees to
use reasonable efforts to obtain a reduction in Taxes, keep Landlord informed of
the status of its tax review or abatement proceeding and not terminate or
withdraw the same without at least forty-five (45) days prior written notice to
Landlord, during which forty-five (45) day period Landlord shall have the right,
but not the

<PAGE>   25

obligation, to be substituted for Tenant in any such proceeding, and if
Landlord so elects, Tenant shall cooperate with Landlord as Landlord may
reasonably require in order to effect such substitution, including, without
limitation, by assigning all rights and claims under any such proceeding to
Landlord. To the extent that Tenant is successful in obtaining any abatement or
reduction through such proceedings, and Landlord receives a refund of Taxes
previously paid, Landlord shall promptly pay over to Tenant such refund, net of
any amounts owed to Landlord at such time.

                                    ARTICLE 9
                         OPERATING AND UTILITY EXPENSES

         9.1 DEFINITIONS. "OPERATING YEAR" shall mean each calendar year all or
any part of which falls within the Term, and "OPERATING EXPENSES" shall mean the
aggregate costs and expenses incurred by Landlord with respect to the operation,
administration, cleaning, repair, maintenance and management of the Property,
all as, and to the extent, set forth in EXHIBIT D attached hereto.

         9.2      TENANT'S PAYMENT OF OPERATING EXPENSES.

                  (a) Tenant shall pay to Landlord, as Additional Rent, an
amount equal to the Operating Expenses attributable to each Operating Year, such
amount to be apportioned for any portion of an Operating Year in which the
Commencement Date falls or the Term of this Lease ends.

                  (b) Estimated payments by Tenant on account of Operating
Expenses shall be made on the first day of each and every calendar month during
the Term of this Lease, in the fashion herein provided for the payment of Basic
Rent. The monthly amount so to be paid to Landlord shall be sufficient to
provide Landlord by the end of each Operating Year a sum equal to Tenant's
required payment, as reasonably estimated by Landlord from time to time during
each Operating Year, on account of Operating Expenses for such Operating Year.
After the end of each Operating Year, Landlord shall submit to Tenant a
reasonably detailed accounting of Operating Expenses for such Operating Year,
and Landlord shall certify to the accuracy thereof. If estimated payments
theretofore made for such Operating Year by Tenant exceed Tenant's required
payment on account thereof for such Operating Year according to such statement,
Landlord shall credit the amount of overpayment against subsequent obligations
of Tenant with respect to Operating Expenses (or promptly refund such
overpayment if the Term of this Lease has ended and Tenant has no further
obligation to Landlord other than the indemnity obligations set forth herein
which survive the termination of this Lease, provided that Landlord has no
claims pursuant thereto at such time); but if the required payments on account
thereof for such Operating Year are greater than the estimated payments (if any)
theretofore made on account thereof for such Operating Year, Tenant shall make
payment to Landlord within thirty (30) days after being so advised by Landlord,
and the obligation to make such payment for any period within the Term shall
survive expiration of the Term.

<PAGE>   26

                  (c) Tenant shall have the right to examine, copy and audit
Landlord's books and records establishing Operating Expenses for any Operating
Year for a period of one (1) year following the date that Tenant receives the
statement of Operating Expenses for such Operating Year from Landlord. Tenant
shall give Landlord not less than thirty (30) days' prior notice of its
intention to examine and audit such books and records, and such examination and
audit shall take place at such place within the continental United States as
Landlord routinely maintains such books and records, unless Landlord elects to
have such examination and audit take place in another location designated by
Landlord in the city and state in which the Property is located. All costs of
the examination and audit shall be borne by Tenant; provided, however, that if
such examination and audit establishes that the actual Operating Expenses for
the Operating Year in question are less than the amount set forth as the annual
Operating Expenses on the annual statement delivered to Tenant by at least three
percent (3%), then Landlord shall pay the reasonable costs of such examination
and audit. If, pursuant to the audit, the payments made for such Operating Year
by Tenant exceed Tenant's required payment on account thereof for such Operating
Year, Landlord shall credit the amount of overpayment against subsequent
obligations of Tenant with respect to Operating Expenses (or promptly refund
such overpayment if the Term of this Lease has ended and Tenant has no further
obligation to Landlord other than the indemnity obligations set forth herein
which survive the termination of this Lease, provided that Landlord has no
claims pursuant thereto at such time); but, if the payments made by Tenant for
such Operating Year are less than Tenant's required payment as established by
the examination and audit, Tenant shall pay the deficiency to Landlord within
thirty (30) days after conclusion of the examination and audit, and the
obligation to make such payment for any period within the Term shall survive
expiration of the Term. If Tenant does not elect to exercise its right to
examine and audit Landlord's books and records for any Operating Year within the
time period provided for by this paragraph, Tenant shall have no further right
to challenge Landlord's statement of Operating Expenses.

         9.3 UTILITY PAYMENTS. Tenant shall be responsible for the payment of
all utilities used and consumed in the Premises, including, without limitation,
water, sewer, gas, electricity and telephone service, directly to the proper
authorities charged with collection thereof.

                                   ARTICLE 10
                    INDEMNITY AND PUBLIC LIABILITY INSURANCE

         10.1 TENANT'S INDEMNITY. Except to the extent arising from the
negligence or willful misconduct of Landlord or its agents or employees, Tenant
agrees to indemnify and save harmless Landlord and Landlord's partners, members,
shareholders, officers, directors, managers, employees, agents and contractors
from and against all claims, losses, cost, damages, liability or expenses of
whatever nature arising: (i) from any accident, injury or damage whatsoever to
any person, or to the property of any person, occurring in or about the
Premises; or (ii) from the use or occupancy of the Premises or of any business
conducted therein, and, in any case, occurring after the Commencement Date until
the expiration of the Term of this Lease and thereafter so long as Tenant is in
occupancy of any part of the Premises. This indemnity and hold harmless
agreement shall include indemnity against all losses, costs, damages, expenses
and liabilities incurred in or in connection with any such claim or any
proceeding brought thereon,

<PAGE>   27

and the defense thereof, including, without limitation, reasonable attorneys'
fees and costs at both the trial and appellate levels.

         10.2 TENANT INSURANCE. Tenant agrees to maintain in full force from the
date upon which Tenant first enters the Premises for any reason, throughout the
Term of this Lease, and thereafter so long as Tenant is in occupancy of any part
of the Premises, a policy of commercial general liability and property damage
insurance (including broad form contractual liability, independent contractor's
hazard and completed operations coverage) under which Tenant is named as an
insured and Landlord (and such other persons as are in privity of estate with
Landlord as may be set out in a notice from time to time) are named as
additional insureds, and under which the insurer agrees to indemnify and hold
Landlord and those in privity of estate with Landlord, harmless from and against
all cost, expense and/or liability arising out of or based upon any and all
claims, accidents, injuries and damages set forth in SECTION 10.1. Tenant may
satisfy such insurance requirements by including the Premises in a so-called
"blanket" and/or "umbrella" insurance policy, provided that the amount of
coverage allocated to the Premises shall fulfill the requirements set forth
herein. Each policy required hereunder shall be non-cancelable and non-amendable
with respect to Landlord and Landlord's said designees without thirty (30) days'
prior notice, shall be written on an "occurrence" basis, and shall be in at
least the amounts of the Initial General Liability Insurance specified in
SECTION 1.1 or such greater amounts as Landlord in its reasonable discretion
shall from time to time request, and a duplicate original or certificates
thereof satisfactory to Landlord, together with a photocopy of the entire
policy, shall be delivered to Landlord.

         10.3 TENANT'S RISK. Tenant agrees to use and occupy the Premises at
Tenant's own risk. Landlord shall not be liable to Tenant, its employees,
agents, invitees or contractors for any damage, injury, loss, compensation, or
claim (including, but not limited to, claims for the interruption of or loss to
Tenant's business) based on, arising out of or resulting from any cause
whatsoever, including, but not limited to, repairs to any portion of the
Premises or the Property, any fire, robbery, theft, mysterious disappearance
and/or any other crime or casualty, the actions of any person or persons, or any
leakage in any part or portion of the Premises or the Building, or from water,
rain or snow that may leak into, or flow from any part of the Premises or the
Building, or from drains, pipes or plumbing fixtures in the Building, unless due
to the negligence or willful misconduct of Landlord or Landlord's agents,
contractors or employees. Any goods, property or personal effects stored or
placed in or about the Premises shall be at the sole risk of Tenant, and neither
Landlord nor Landlord's insurers shall in any manner be held responsible
therefor. Notwithstanding the foregoing, Landlord shall not be released from
liability for any injury, loss, damages or liability to the extent arising from
any gross negligence or willful misconduct of Landlord, its servants, employees
or agents acting within the scope of their authority on or about the Premises;
provided, however, that in no event shall Landlord, its servants, employees or
agents have any liability to Tenant based on any loss with respect to or
interruption in the operation of Tenant's business. Tenant shall carry
"all-risk" property insurance on a "replacement cost" basis, insuring Tenant's
Removable Property and any Alterations made by Tenant pursuant to SECTION 5.2,
to the extent that the same have not become the property of Landlord.

<PAGE>   28

         10.4 WAIVER OF SUBROGATION. The parties hereto shall each procure an
appropriate clause in, or endorsement on, any property insurance policy on the
Premises or any personal property, fixtures or equipment located thereon or
therein, pursuant to which the insurer waives subrogation or consents to a
waiver of right of recovery in favor of either party, its respective agents or
employees. Having obtained such clauses and/or endorsements, each party hereby
agrees that it will not make any claim against or seek to recover from the other
or its agents or employees for any loss or damage to its property or the
property of others resulting from fire or other perils covered by such property
insurance.

                                   ARTICLE 11
                           FIRE, EMINENT DOMAIN, ETC.

         11.1 NOTICE OF DAMAGE. If the Building shall be damaged or destroyed by
fire or other casualty, Tenant shall promptly notify Landlord of such
occurrence.

         11.2 MINOR CASUALTY. In the event that the Building (other than
Tenant's Alterations, fixtures and personal property), or any part thereof, or
access thereto, shall be damaged or destroyed by fire or other insured casualty,
but the Tenant shall continue to have reasonably convenient access to the
Building and no portion of the Building (other than Tenant's Alterations,
fixtures and personal property) shall thereby be rendered unfit for use and
occupancy by the Tenant for the Permitted Uses, Landlord shall thereafter use
reasonable efforts to restore the Building (including any Tenant's Alterations
and/or fixtures which become part of the real estate comprising the Premises,
but specifically EXCLUDING any of Tenant's Alterations and/or fixtures which are
NOT insured under the insurance that Landlord maintains in accordance with the
terms of this Lease, and EXCLUDING Tenant's personal property) to proper
condition for Tenant's use and occupation, provided that Landlord's obligation
shall be limited to the amount of insurance proceeds available therefor plus the
amount of any deductibles for property insurance carried by Landlord pursuant to
the terms of this Lease. If, for any reason, such restoration shall not be
substantially completed within a six (6) month period after it was commenced the
(which six (6) month period may be extended for such periods of time as Landlord
is prevented from proceeding with or completing such restoration due to Force
Majeure, but in no event for more than an additional three (3) months), Tenant
shall have the right to terminate this Lease by giving notice to Landlord
thereof within thirty (30) days after the expiration of such period (as so
extended) provided that such restoration is not completed within such period.
This Lease shall cease and come to an end without further liability or
obligation on the part of either party thirty (30) days after such giving of
notice by Tenant unless, within such thirty-day period, Landlord substantially
completes such restoration. Such right of termination shall be Tenant's sole and
exclusive remedy at law or in equity for Landlord's failure so to complete such
restoration, and time shall be of the essence with respect thereto.

         11.3 MAJOR CASUALTY. In the event that the Building (other than
Tenant's Alterations, fixtures and personal property), or any part thereof, or
access thereto, shall be so damaged or destroyed by fire or other insured
casualty that the Tenant shall not have reasonably convenient access to the
Building or any portion of the Building (other than Tenant's

<PAGE>   29

Alterations, fixtures and personal property) or that the Building shall
thereby be otherwise rendered unfit for use and occupancy by the Tenant for the
Permitted Uses, and if in the sole reasonable judgment of the Landlord the
damage or destruction may be repaired within nine (9) months from the time that
repair work would commence, then the Landlord shall so notify the Tenant within
sixty (60) days after the occurrence of the damage or destruction. Landlord
shall thereafter use reasonable efforts to restore the Building (including any
Tenant's Alterations and/or fixtures which become part of the real estate
comprising the Premises, but specifically EXCLUDING any of Tenant's Alterations
and/or fixtures which are NOT insured under the insurance that Landlord
maintains in accordance with the terms of this Lease, and EXCLUDING Tenant's
personal property) to proper condition for Tenant's use and occupation, provided
that Landlord's obligation shall be limited to the amount of insurance proceeds
available therefor. If, for any reason, such restoration shall not be
substantially completed within a nine (9) month period after it was commenced
the (which nine (9) month period may be extended for such periods of time as
Landlord is prevented from proceeding with or completing such restoration due to
Force Majeure, but in no event for more than an additional three (3) months),
Tenant shall have the right to terminate this Lease by giving notice to Landlord
thereof within thirty (30) days after the expiration of such period (as so
extended) provided that such restoration is not completed within such period.
This Lease shall cease and come to an end without further liability or
obligation on the part of either party thirty (30) days after such giving of
notice by Tenant unless, within such thirty-day period, Landlord substantially
completes such restoration. Such right of termination shall be Tenant's sole and
exclusive remedy at law or in equity for Landlord's failure so to complete such
restoration, and time shall be of the essence with respect thereto. If such
damage or destruction cannot, in the sole reasonable judgment of the Landlord,
be expected to be repaired within nine (9) months from the time that repair work
would commence), and the Landlord does not give the Tenant the notice referred
to in this SECTION 11.3, then either party shall have the right to terminate
this Lease by giving written notice of such termination to the other party
within sixty (60) days after the occurrence of such damage or destruction, in
the case of Landlord, and within thirty (30) days after the expiration of such
sixty (60) day period in the case of Tenant, whereupon this Lease shall
terminate thirty (30) days after the date of such notice with the same force and
effect as if such date were the date originally established as the expiration
date hereof. If neither party gives such notice of termination, then Landlord
shall repair the damage or destruction in accordance with and subject to the
terms of this SECTION 11.3.

         11.4 CASUALTY IN LAST SIX MONTHS. In addition to and apart from the
foregoing provisions of this ARTICLE 11, (i) if more than twenty-five percent
(25%) of the rentable square feet of the Building shall be totally or almost
totally damaged or destroyed by fire or other cause at any time during the last
six (6) months of the Term of this Lease, (ii) if the Building is damaged or
destroyed by fire or other cause to such extent that the cost to repair the
damage or destruction, as reasonably estimated by the Landlord, will be more
than twenty-five percent (25%) of the replacement value of the Building
(excluding foundations) immediately prior to the occurrence of such damage or
destruction, and (iii) if the estimated period to complete the repairs will
result in less than two (2) months remaining in the Term of this Lease
(including any exercised extension) following the completion of such repairs,
either the Landlord or the Tenant may terminate this Lease by giving written
notice of such termination to the other party whereupon this Lease shall
terminate as of the date of such damage or destruction as if such date

<PAGE>   30

were the date originally established as the expiration date hereof.

         11.5 LEASE TERMINATION IN FINAL TWO YEARS. Landlord and Tenant each
shall have the right to terminate this Lease if the Building is destroyed or
damaged by fire or other casualty to the extent of at least fifty percent (50%)
of the total cost of replacing it during the last two (2) years of the Initial
Term or an Extended Term. Each party's termination rights under this Section
shall be exercised, if at all, by written notice to the other party sent within
thirty (30) days after the occurrence of the damage or destruction. If, however,
Landlord sends such a notice terminating the Lease to Tenant during the last two
(2) years of the Initial Term or an Extended Term, such termination notice shall
take effect thirty (30) days after the date of such notice, unless within said
thirty (30) day period, Tenant sends Landlord written notice exercising Tenant's
extension option contained in SECTION 2.3 (which option may, under the
circumstances set forth in this SECTION 11.5, be exercised earlier than
permitted in SECTION 2.3), in which event Landlord's termination notice shall be
void.

         11.6 LANDLORD'S INSURANCE. Landlord agrees to maintain in full force
and effect, during the Term of this Lease, at Tenant's expense as provided
herein, property damage insurance with such deductibles and in such amounts as
may from time to time be carried by reasonably prudent owners of similar
buildings in the area in which the Property is located, including, without
limitation, (i) fire and extended coverage insurance insuring the Building with
one hundred percent (100%) replacement cost coverage together with rent loss
insurance protecting Landlord against abatement or loss of rent in an amount
equal to at least all Base Rent and Additional Rent payable for one year by the
tenant(s) of the Building, (ii) commercial general liability and property damage
insurance, including a broad form contractual liability endorsement, and (iii)
insurance against other hazards as may from time to time be reasonably required
by any bank, insurance company or other lending institution holding a first
mortgage on the Property which at the time are commonly insured against for
property similar to the Property located in or around the region in which the
Property is located. Without limiting any other term of this Lease, any costs
incurred in connection with any insurance maintained by Landlord with respect to
the Property shall be at Tenant's expense and shall be an Operating Expense.

         11.7 ABATEMENT OF RENT. If the Building is damaged by fire or other
casualty, or a partial taking occurs and this Lease is not terminated pursuant
to SECTION 11.8 below, Basic Rent and Additional Rent payable by Tenant shall
abate proportionately for the period during which, by reason of such damage or
partial taking, there is substantial interference with Tenant's use of the
Building, having regard for the extent to which Tenant may be required to
discontinue Tenant's use of all or an undamaged portion of the Building due to
such damage or partial taking, but such abatement or reduction shall end if and
when Landlord shall have substantially completed sufficient restoration that
Tenant is reasonably able to use the Building and the Building is in
substantially the condition it was in prior to such damage (excluding any of
Tenant's Alterations, fixtures or personal property). If the Premises shall be
affected by any exercise of the power of eminent domain, Basic Rent and
Additional Rent payable by Tenant shall be justly and equitably abated and
reduced according to the nature and extent of the loss of use thereof suffered
by Tenant. In no event shall Landlord have any liability for damages to Tenant
for inconvenience, annoyance, or interruption of business arising from any fire
or other

<PAGE>   31

casualty or eminent domain.

         11.8 CONDEMNATION. If the Premises or the Building is taken in its
entirety by eminent domain then this Lease shall terminate as of the date when
physical possession of the Building or the Premises is taken by the condemning
authority. If there occurs a taking of (a) more than fifty (50%) percent of the
usable floor area of the Building, (b) more than fifty (50%) percent of the area
of the parking lot located on the Land, or (c) all possible means of access to
the Premises, then, in any of these events, Tenant shall have the right to
terminate this Lease by giving written notice to Landlord within ninety (90)
days after the date of such partial taking. If this Lease is not terminated
pursuant to this SECTION 11.8, then Landlord shall repair the Premises to the
condition the Premises was in prior to the partial taking, to the extent
practicable, provided however, that Landlord shall not be required to spend in
connection with such repair more than the amount of proceeds actually received
by Landlord and allocable thereto, less the costs of collecting the same.

         11.9 CONDEMNATION AWARD. Landlord shall have and hereby reserves and
excepts, and Tenant hereby grants and assigns to Landlord, all rights to recover
for damages to the Property and the leasehold interest hereby created, and to
compensation accrued or hereafter to accrue by reason of any taking, by exercise
of the right of eminent domain, and by way of confirming the foregoing, Tenant
hereby grants and assigns, and covenants with Landlord to grant and assign to
Landlord, all rights to such damages or compensation, and covenants to deliver
such further assignments and assurances thereof as Landlord may from time to
time request, and Tenant hereby irrevocably appoints Landlord its
attorney-in-fact to execute and deliver in Tenant's name all such assignments
and assurances. Nothing contained herein shall be construed to prevent Tenant
from prosecuting in any condemnation proceedings a claim for the value of any of
Tenant's Removable Property installed in the Premises by Tenant at Tenant's
expense and for relocation expenses, provided that such action shall not affect
the amount of compensation otherwise recoverable by Landlord from the taking
authority.

                                   ARTICLE 12
                             HOLDING OVER; SURRENDER

         12.1 HOLDING OVER. Any holding over by Tenant after the expiration of
the Term of this Lease shall be treated as a daily tenancy at sufferance at a
Basic Rent of the Holdover Rent (defined below) plus the Additional Rent herein
provided (prorated on a daily basis). "Holdover Rent" shall mean, for any
calendar month of holding over, one and one half (1.5) times the Basic Rent in
effect as of the end of the Term, for the second calendar month of any holding
over, two (2) times the Basic Rent in effect as of the end of the Term, for the
third calendar month of any holding over, two and one half (2.5) times the Basic
Rent in effect as of the end of the Term, and shall be increased by an
additional factor of fifty percent (50%) more than the previous month's increase
factor times the Basic Rent in effect as of the end of the Term for each
succeeding calendar month of the holding over. Tenant shall also pay to Landlord
all damages, direct and/or indirect, sustained by reason of any such holding
over, PROVIDED HOWEVER, that Landlord shall not attempt to enforce, and Tenant
shall have no liability for, indirect damages sustained by reason
<PAGE>   32
of any such holding over during the first ninety (90) days immediately following
the end of the Term. In all other respects, such holding over shall be on the
terms and conditions set forth in this Lease as far as applicable. Tenant shall
have no right to hold over.

         12.2 SURRENDER OF PREMISES. Upon the expiration or earlier termination
of the Term of this Lease, Tenant shall peaceably quit and surrender to Landlord
the Premises in neat and clean condition and in good order, condition and
repair, together with all alterations, additions and improvements which may have
been made or installed in, on or to the Premises prior to or during the Term of
this Lease, including those Alterations designated by Landlord at the time
Landlord approves the Alterations pursuant to Section 5.2 above to not be
removed upon the expiration or earlier termination of the Term (except as
hereinafter provided), excepting only ordinary wear and use and damage by fire
or other casualty for which, under other provisions of this Lease, Tenant has no
responsibility to repair or restore. Tenant shall remove all of Tenant's
Removable Property and, to the extent specified by Landlord pursuant to SECTION
5.2, all alterations and additions made by Tenant; and shall repair any damages
to the Premises or the Building caused by such removal. Nothing contained in
this SECTION 12.2 shall prohibit Tenant from (as contemplated by SECTION 5.2)
(i) removing, at its option, any Alterations made or installed by Tenant
provided that Tenant shall repair any damage to the Building caused by such
removal and otherwise restores the Building to a condition fit for use and
occupation or (ii) leaving in the Premises any Alterations made or installed by
Tenant which are NOT designated by Landlord at the time Landlord approves the
Alterations pursuant to SECTION 5.2 to be removed upon the expiration or earlier
termination of the Term. Any Tenant's Removable Property which shall remain in
the Building or on the Premises after the expiration or termination of the Term
of this Lease shall be deemed conclusively to have been abandoned, and either
may be retained by Landlord as its property or may be disposed of in such manner
as Landlord may see fit, at Tenant's sole cost and expense.

                                   ARTICLE 13
                     RIGHTS OF MORTGAGEES; TRANSFER OF TITLE

         13.1     RIGHTS OF MORTGAGEES.

                  (a This Lease shall be subordinate to any mortgage, deed of
trust or ground lease or similar encumbrance (collectively, a "MORTGAGE", and
the holder thereof from time to time the "HOLDER") from time to time encumbering
the Premises, whether executed and delivered prior to or subsequent to the date
of this Lease, unless the Holder shall elect otherwise; PROVIDED THAT such
subordination shall only be effective if the Holder enters into a written
agreement that, subject to such reasonable qualifications as the Holder may
impose, in the event that the Holder or any other party shall succeed to the
interest of Landlord hereunder pursuant to such Mortgage, so long as no Default
of Tenant exists hereunder, Tenant's right to possession of the Premises shall
not be disturbed and Tenant's other rights hereunder shall not be adversely
affected by any foreclosure of such Mortgage. If this Lease is subordinate to
any Mortgage and the Holder or any other party shall succeed to the interest of
Landlord pursuant to the Mortgage (such Holder or other party, a "SUCCESSOR"),
Tenant shall attorn to the or Successor and this Lease shall continue in full
force and effect between the Holder or Successor and Tenant. Tenant agrees to

<PAGE>   33

execute such instruments of subordination or attornment in confirmation of the
foregoing agreement as the Holder or Successor reasonably may request, and
Tenant hereby appoints the Holder or Successor as Tenant's attorney-in-fact to
execute such subordination or attornment agreement upon default of Tenant in
complying with the Holder's or Successor's request.

         13.2     ASSIGNMENT OF RENTS AND TRANSFER OF TITLE.

                  (a With reference to any assignment by Landlord of Landlord's
interest in this Lease, or the rents payable hereunder, conditional in nature or
otherwise, which assignment is made to the holder of a mortgage on property
which includes the Premises, Tenant agrees that the execution thereof by
Landlord, and the acceptance thereof by the holder of such mortgage shall never
be treated as an assumption by such holder of any of the obligations of Landlord
hereunder unless such holder shall, by notice sent to Tenant, specifically
otherwise elect and, except as aforesaid, such holder shall be treated as having
assumed Landlord's obligations hereunder only upon foreclosure of such holder's
mortgage or the taking of possession of the Premises.

                  (b In no event shall the acquisition of Landlord's interest in
the Property by a purchaser which, simultaneously therewith, leases Landlord's
entire interest in the Property back to the seller thereof be treated as an
assumption by operation of law or otherwise, of Landlord's obligations
hereunder, but Tenant shall look solely to such seller-lessee, and its
successors from time to time in title, for performance of Landlord's obligations
hereunder. In any such event, this Lease shall be subject and subordinate to the
lease to such purchaser. For all purposes, such seller-lessee, and its
successors in title, shall be the Landlord hereunder unless and until Landlord's
position shall have been assumed by such purchaser-lessor.

                  (c Except for transfers described in PARAGRAPH (b) of this
Section, in the event of any transfer of title to the Property by Landlord,
Landlord shall thereafter be entirely freed and relieved from the performance
and observance of all covenants and obligations hereunder arising after the date
of such transfer.

         13.3 NOTICE TO MORTGAGEE. After receiving notice from Landlord of any
Holder of a Mortgage which includes the Premises, no notice from Tenant to
Landlord alleging any default by Landlord shall be effective unless and until a
copy of the same is given to such Holder (provided Tenant shall have been
furnished with the name and address of such Holder), and the curing of any of
Landlord's defaults by such Holder shall be treated as performance by Landlord.

                                   ARTICLE 14
                                DEFAULT; REMEDIES

         14.1     TENANT'S DEFAULT.

                  (a If at any time subsequent to the date of this Lease any one
or more of the

<PAGE>   34

following events (herein referred to as a "DEFAULT OF TENANT") shall happen:

                           (i)   Tenant shall fail to pay the Basic Rent or
         any other Additional Rent hereunder when due and such failure shall
         continue for three (3) Business Days after notice to Tenant from
         Landlord; or

                           (ii)  Tenant shall neglect or fail to perform or
         observe any other covenant herein contained on Tenant's part to be
         performed or observed and Tenant shall fail to remedy the same within
         thirty (30) days after notice to Tenant specifying such neglect or
         failure, or if such failure is of such a nature that Tenant cannot
         reasonably remedy the same within such thirty (30) day period, Tenant
         shall fail to commence promptly (and in any event within such thirty
         (30) day period) to remedy the same and to prosecute such remedy to
         completion with diligence and continuity; or

                           (iii) Tenant's leasehold interest in the Premises
         shall be taken on execution or by other process of law directed
         against Tenant; or

                           (iv)  Tenant shall make an assignment for the
         benefit of creditors or shall be adjudicated insolvent, or shall file
         any petition or answer seeking any reorganization, arrangement,
         composition, readjustment, liquidation, dissolution or similar relief
         for itself under any present or future Federal, State or other statute,
         law or regulation for the relief of debtors (other than the Bankruptcy
         Code, as hereinafter defined), or shall seek or consent to or acquiesce
         in the appointment of any trustee, receiver or liquidator of Tenant or
         of all or any substantial part of its properties, or shall admit in
         writing its inability to pay its debts generally as they become due; or

                           (v)   An Event of Bankruptcy (as hereinafter defined)
         shall occur with respect to Tenant; or

                           (vi)  A petition shall be filed against Tenant
         under any law (other than the Bankruptcy Code) seeking any
         reorganization, arrangement, composition, readjustment, liquidation,
         dissolution, or similar relief under any present or future Federal,
         State or other statute, law or regulation and shall remain undismissed
         or unstayed for an aggregate of sixty (60) days (whether or not
         consecutive), or if any trustee, conservator, receiver or liquidator of
         Tenant or of all or any substantial part of its properties shall be
         appointed without the consent or acquiescence of Tenant and such
         appointment shall remain unvacated or unstayed for an aggregate of
         sixty (60) days (whether or not consecutive);

                           (vii) If: (x) Tenant shall fail to pay the Basic
         Rent or any Additional Rent hereunder when due or shall fail to perform
         or observe any other covenant herein contained on Tenant's part to be
         performed or observed and Tenant shall cure any such failure within the
         applicable grace period set forth in clauses (i) or (ii) above; or (y)
         a Default of Tenant of the kind set forth in clauses (i) or (ii) above
         shall occur and Landlord shall, in its sole discretion, permit Tenant
         to cure such Default of Tenant after

<PAGE>   35

         the applicable grace period has expired; AND the same or a similar
         failure shall occur more than twice within the next 365 days (whether
         or not such similar failure is cured within the applicable grace
         period);

then in any such case Landlord may terminate this Lease as hereinafter provided.

                  (b For purposes of CLAUSE (A)(V) above, an "EVENT OF
BANKRUPTCY" means the filing of a voluntary petition by Tenant, or the entry of
an order for relief against Tenant, under Chapter 7, 11, or 13 of the Bankruptcy
Code, and the term "BANKRUPTCY CODE" means 11 U.S.C. ss.101, ET SEQ. If an Event
of Bankruptcy occurs, then the trustee of Tenant's bankruptcy estate or Tenant
as debtor-in-possession may (subject to final approval of the court) assume this
Lease, and may subsequently assign it, only if it does the following within
sixty (60) days after the date of the filing of the voluntary petition, the
entry of the order for relief (or such additional time as a court of competent
jurisdiction may grant, for cause, upon a motion made within the original
sixty-day period):

                           (i)   file a motion to assume the Lease with the
         appropriate court;

                           (ii)  satisfy all of the following conditions, which
         Landlord and  Tenant acknowledge to be commercially reasonable:

                  (A)      cure all Defaults of Tenant under this Lease or
                           provide Landlord with Adequate Assurance (as defined
                           below) that it will (x) cure all monetary Defaults of
                           Tenant hereunder within ten (10) days from the date
                           of the assumption, and (y) cure all nonmonetary
                           Defaults of Tenant hereunder within thirty (30) days
                           from the date of the assumption;

                  (B)      compensate Landlord and any other person or entity,
                           or provide Landlord with Adequate Assurance that
                           within ten (10) days after the date of the
                           assumption, it will compensate Landlord and such
                           other person or entity, for any pecuniary loss that
                           Landlord and such other person or entity incurred as
                           a result of any Default of Tenant, the trustee, or
                           the debtor-in-possession;

                  (C)      provide Landlord with Adequate Assurance of Future
                           Performance (as defined below) of all of Tenant's
                           obligations under this Lease; and

                  (D) deliver to Landlord a written statement that the
conditions herein have been satisfied.

                  (c) For purposes only of the foregoing PARAGRAPH (b), and in
addition to any other requirements under the Bankruptcy Code, any future federal
bankruptcy law and applicable case law, "ADEQUATE ASSURANCE" means at least
meeting the following conditions, which Landlord and Tenant acknowledge to be
commercially reasonable:

<PAGE>   36

                           (i)   entering an order segregating sufficient cash
         to pay Landlord and any other person or entity under PARAGRAPH (b)
         above, and

                           (ii)  granting to Landlord a valid first lien and
         security interest (in form acceptable to Landlord) in all property
         comprising the Tenant's "property of the estate," as that term is
         defined in Section 541 of the Bankruptcy Code, which lien and security
         interest secures the trustee's or debtor-in-possession's obligation to
         cure the monetary and nonmonetary defaults under the Lease within the
         periods set forth in PARAGRAPH (b) above.

                  (d) For purposes only of PARAGRAPH (B) above, and in addition
to any other requirements under the Bankruptcy Code, any future federal
bankruptcy law and applicable case law, "ADEQUATE ASSURANCE OF FUTURE
PERFORMANCE" means at least meeting the following conditions, which Landlord and
Tenant acknowledge to be commercially reasonable:

                           (i)   the trustee or debtor-in-possession
         depositing with Landlord, as security for the timely payment of rent
         and other monetary obligations, an amount equal to the sum of two (2)
         months' Basic Rent plus an amount equal to two (2) months' installments
         on account of Additional Rent;

                           (ii)  the trustee or the debtor-in-possession
         agreeing to pay in advance, on each day that the Basic Rent is payable,
         the monthly installments on account of Additional Rent;

                           (iii) the trustee or debtor-in-possession
         providing adequate assurance of the source of the rent and other
         consideration due under this Lease;

                           (iv)  Tenant's bankruptcy estate and the trustee
         or debtor-in-possession providing Adequate Assurance that the
         bankruptcy estate (and any successor after the conclusion of the
         Tenant's bankruptcy proceedings) will continue to have sufficient
         unencumbered assets after the payment of all secured obligations and
         administrative expenses to assure Landlord that the bankruptcy estate
         (and any successor after the conclusion of the Tenant's bankruptcy
         proceedings) will have sufficient funds to fulfill Tenant's obligations
         hereunder.

                  (e) If the trustee or the debtor-in-possession assumes the
Lease under PARAGRAPH (b) above and applicable bankruptcy law, it may assign its
interest in this Lease only if the proposed assignee first provides Landlord
with Adequate Assurance of Future Performance of all of Tenant's obligations
under the Lease, and if Landlord determines, in the exercise of its reasonable
business judgment, that the assignment of this Lease will not breach any other
lease, or any mortgage, financing agreement, or other agreement relating to the
Property by which Landlord or the Property is then bound (and Landlord shall not
be required to obtain consents or waivers from any third party required under
any lease, mortgage, financing agreement, or other such agreement by which
Landlord is then bound).

<PAGE>   37

                  (f) For purposes only of PARAGRAPH (e) above, and in addition
to any other requirements under the Bankruptcy Code, any future federal
bankruptcy law and applicable case law, "ADEQUATE ASSURANCE OF FUTURE
PERFORMANCE" means at least the satisfaction of the following conditions, which
Landlord and Tenant acknowledge to be commercially reasonable:

                           (i)   the proposed assignee submitting a current
         financial statement, audited by a certified public accountant, that
         allows a net worth and working capital in amounts determined in the
         reasonable business judgment of Landlord to be sufficient to assure the
         future performance by the assignee of Tenant's obligation under this
         Lease; and

                           (ii)  if requested by Landlord in the exercise of
         its reasonable business judgment, the proposed assignee obtaining a
         guarantee (in form and substance satisfactory to Landlord) from one or
         more persons who satisfy Landlord's standards of creditworthiness.

         14.2     LANDLORD'S REMEDIES.

                  (a) Upon the occurrence of a Default of Tenant, Landlord may
terminate this Lease by notice to Tenant, specifying a date not less than five
(5) days after the giving of such notice on which this Lease shall terminate and
this Lease shall come to an end on the date specified therein as fully and
completely as if such date were the date herein originally fixed for the
expiration of the Term of this Lease, and Tenant will then quit and surrender
the Premises to Landlord, but Tenant shall remain liable as hereinafter
provided.

                  (b) If this Lease shall have been terminated as provided in
this ARTICLE, then Landlord may re-enter the Premises, either by summary
proceedings, ejectment or otherwise, and remove and dispossess Tenant and all
other persons and any and all property from the same, as if this Lease had not
been made.

                  (c) If this Lease shall have been terminated as provided in
this Article, Tenant shall pay the Basic Rent, Additional Rent and other sums
payable hereunder up to the time of such termination, and thereafter Tenant,
until the end of what would have been the Term of this Lease in the absence of
such termination, and whether or not the Premises shall have been relet, shall
be liable to Landlord for, and shall pay to Landlord, as liquidated current
damages: (x) the Basic Rent, Additional Rent and other sums that would be
payable hereunder if such termination had not occurred, less the net proceeds,
if any, of any reletting of the Premises, after deducting all expenses in
connection with such reletting, including, without limitation, all repossession
costs, brokerage commissions, legal expenses, attorneys' fees, advertising,
expenses of employees, alteration costs and expenses of preparation for such
reletting; and (y) if this Lease provides that Tenant was entitled to occupy the
Premises for any period of time without paying Basic Rent, the amount of Basic
Rent that Tenant would have paid for any such period. Tenant shall pay the
portion of such current damages referred to in clause (x) above to Landlord
monthly on the days which the Basic Rent would have been payable hereunder if
this Lease had not been terminated, and Tenant shall pay the portion of such
current damages referred to in clause (y)

<PAGE>   38

above to Landlord upon such termination.

                  (d) At any time after termination of this Lease as provided in
this Article, whether or not Landlord shall have collected any such current
damages, as liquidated final damages and in lieu of all such current damages
beyond the date of such demand, at Landlord's election Tenant shall pay to
Landlord an amount equal to the present value (calculated using the Federal
Reserve discount rate in effect on the date of such demand) of the excess, if
any, of the Basic Rent, Additional Rent and other sums as hereinbefore provided
which would be payable hereunder from the date of such demand assuming that, for
the purposes of this paragraph, annual payments by Tenant on account of Taxes
and Operating Expenses would be the same as the payments required for the
immediately preceding Operating or Tax Year for what would be the then unexpired
Term of this Lease if the same remained in effect, over the then fair net rental
value of the Premises for the same period.

                  (e) In case of any Default of Tenant, re-entry, expiration and
dispossession by summary proceedings or otherwise, Landlord (i) shall use
reasonable efforts to re-let the Premises or any part or parts thereof, either
in the name of Landlord or otherwise, for a term or terms which may at
Landlord's option be equal to or less than or exceed the period which would
otherwise have constituted the balance of the Term of this Lease and may grant
concessions or free rent to the extent that Landlord considers advisable and
necessary to re-let the same and (ii) may make such alterations, repairs and
decorations in the Premises as Landlord considers advisable and necessary for
the purpose of reletting the Premises; and the making of such alterations,
repairs and decorations shall not operate or be construed to release Tenant from
liability hereunder as aforesaid. Landlord shall in no event be liable in any
way whatsoever for failure to relet the Premises, or, in the event that the
Premises are relet, for failure to collect the rent under such reletting. Tenant
hereby expressly waives any and all rights of redemption granted by or under any
present or future laws in the event of Tenant being evicted or dispossessed, or
in the event of Landlord obtaining possession of the Premises, by reason of the
violation by Tenant of any of the covenants and conditions of this Lease.
Notwithstanding the foregoing, in no event shall Landlord be required to (i)
relet the Premises for a rental less than the current fair market rental then
prevailing for similar office space, (ii) enter into a lease with any proposed
tenant that does not have, in Landlord's sole discretion, sufficient financial
resources or operating experience to operate the Premises in a first-class
manner, or (iii) relet the Premises for use other than the Permitted Use.

         14.3 ADDITIONAL RENT. If Tenant shall fail to pay when due any sums
under this Lease designated as Additional Rent, Landlord shall have the same
rights and remedies as Landlord has hereunder for failure to pay Basic Rent.

         14.4 REMEDYING DEFAULTS. Subject to the notice and opportunity to cure
periods specifically set forth in this Lease, Landlord shall have the right, but
shall not be required, to pay such sums or do any act which requires the
expenditure of monies which may be necessary or appropriate by reason of the
failure or neglect of Tenant to perform any of the provisions of this

<PAGE>   39

Lease, and in the event of the exercise of such right by Landlord, Tenant
agrees to pay to Landlord forthwith upon demand all such sums, together
with interest thereon at a rate equal to 3% over the base rate in effect from
time to time at The First National Bank of Boston (but in no event less than 18%
per annum), as Additional Rent. Any payment of Basic Rent, Additional Rent or
other sums payable hereunder not paid when due shall, at the option of Landlord,
bear interest at a rate equal to 3% over the base rate in effect from time to
time at The First National Bank of Boston (but in no event less than 18% per
annum) from the due date thereof and shall be payable forthwith on demand by
Landlord, as Additional Rent.

         14.5 REMEDIES CUMULATIVE. The specified remedies to which Landlord may
resort hereunder are not intended to be exclusive of any remedies or means of
redress to which Landlord may at any time be entitled lawfully, and Landlord may
invoke any remedy (including the remedy of specific performance) allowed at law
or in equity as if specific remedies were not herein provided for.

         14.6 ATTORNEYS' FEES. Reasonable attorneys' fees and expenses incurred
by or on behalf of Landlord in enforcing its rights hereunder or occasioned by
any Default of Tenant shall be paid by Tenant if Landlord is successful in such
enforcement. Reasonable attorneys' fees and expenses incurred by or on behalf of
Tenant in enforcing its rights hereunder after a default of Landlord shall be
paid by Landlord if Tenant is successful in such enforcement.

         14.7     WAIVER.

                  (a) Failure on the part of Landlord or Tenant to complain of
any action or non-action on the part of the other, no matter how long the same
may continue, shall never be a waiver by Tenant or Landlord, respectively, of
any of the other's rights hereunder. Further, no waiver at any time of any of
the provisions hereof by Landlord or Tenant shall be construed as a waiver of
any of the other provisions hereof, and a waiver at any time of any of the
provisions hereof shall not be construed as a waiver at any subsequent time of
the same provisions. The consent or approval of Landlord or Tenant to or of any
action by the other requiring such consent or approval shall not be construed to
waive or render unnecessary Landlord's or Tenant's consent or approval to or of
any subsequent similar act by the other.

                  (b) No payment by Tenant, or acceptance by Landlord, of a
lesser amount than shall be due from Tenant to Landlord shall be treated
otherwise than as a payment on account of the earliest installment of any
payment due from Tenant under the provisions hereof. The acceptance by Landlord
of a check for a lesser amount with an endorsement or statement thereon, or upon
any letter accompanying such check, that such lesser amount is payment in full,
shall be given no effect, and Landlord may accept such check without prejudice
to any other rights or remedies which Landlord may have against Tenant.

         14.8 LANDLORD'S DEFAULT. Landlord shall in no event be in default under
this Lease unless Landlord shall neglect or fail to perform any of its
obligations hereunder and shall fail to remedy the same within thirty (30) days
after notice to Landlord specifying such neglect or failure, or if such failure
is of such a nature that Landlord cannot reasonably remedy the same

<PAGE>   40

within such thirty (30) day period, Landlord shall fail to commence
promptly (and in any event within such thirty (30) day period) to remedy the
same and to prosecute such remedy to completion with diligence and continuity.

                                   ARTICLE 15
                            MISCELLANEOUS PROVISIONS

         15.1 RIGHTS OF ACCESS. Landlord and its agents shall have the right to
enter the Premises at all reasonable hours for the purpose of inspecting the
Premises or otherwise exercising its rights or fulfilling its obligations under
this Lease, and Landlord and its agents also shall have the right to make access
available at all reasonable hours to prospective or existing mortgagees,
purchasers or tenants of any part of the Property.

         15.2     COVENANT OF QUIET ENJOYMENT.

                  (a Reference is made to Policy No. 20335124 issued to Landlord
by First American Title Insurance Company and dated December 21, 1999 (the
"TITLE INSURANCE POLICY"), a copy of which has been delivered to Tenant.
Landlord covenants that to the best of its actual knowledge without any duty of
inquiry, there are no liens or encumbrances of record on the Premises as of the
date hereof, except as disclosed in the Title Insurance Policy.

                  (b Subject to the terms and conditions of this Lease, on
payment of the Basic Rent and Additional Rent and observing, keeping and
performing all of the other terms and conditions of this Lease on Tenant's part
to be observed, kept and performed, Tenant shall lawfully, peaceably and quietly
enjoy the Premises during the term hereof, without hindrance or ejection by any
persons lawfully claiming under Landlord to have title to the Premises superior
to Tenant. The foregoing covenant of quiet enjoyment is in lieu of any other
covenant, express or implied except as otherwise expressly set forth herein.

         15.3     LANDLORD'S LIABILITY.

                  (a) Tenant agrees to look solely to Landlord's equity interest
in the Property or proceeds therefrom, at the time of recovery for recovery of
any judgment against Landlord, and agrees that neither Landlord nor any
successor of Landlord shall be personally liable for any such judgment, or for
the payment of any monetary obligation to Tenant. 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 any
successor of Landlord, or to take any action not involving the personal
liability of Landlord or any successor of Landlord to respond in monetary
damages from Landlord's assets other than Landlord's equity interest in the
Property.

                  (b) In no event shall Landlord ever be liable to Tenant for
any loss of business or any other indirect or consequential damages suffered by
Tenant from whatever cause. Except with respect to a default under Section 12.1
above, in no event shall Tenant ever be liable to

<PAGE>   41

Landlord for any loss of business or any other indirect or consequential
damages suffered by Landlord from whatever cause.

                  (c) Whenever Tenant requests Landlord's consent or approval
(whether or not provided for herein), Tenant shall pay to Landlord, on demand,
as Additional Rent, any reasonable expenses incurred by Landlord (including
without limitation reasonable attorneys' fees and costs, if any) in connection
therewith.

                  (d) Any repairs or restoration permitted to be made by
Landlord under this Lease may be made during normal business hours, and
Landlord shall have no liability for damages to Tenant for inconvenience,
annoyance or interruption of business arising therefrom. Notwithstanding the
foregoing, Landlord agrees to use commercially reasonable efforts to minimize
or eliminate interruption in Tenant's business in performing such repairs or
restoration.

         15.4 ESTOPPEL CERTIFICATE. Landlord and Tenant shall each, at any time
and from time to time, upon not less than ten (10) business days prior written
notice by the other party, execute, acknowledge and deliver to the requesting
party an estoppel certificate containing such statements of fact regarding the
Lease as the requesting party reasonably requests.

         15.5 BROKERAGE. Landlord and Tenant each warrant and represent to the
other that neither of them has dealt with any broker in connection with the
consummation of this Lease. In the event of any brokerage claims against
Landlord predicated upon prior dealings with Tenant, Tenant agrees to defend the
same and indemnify Landlord against any such claim. In the event of any
brokerage claims against Tenant predicated upon prior dealings with Landlord,
Landlord agrees to defend the same and indemnify Tenant against any such claim.

         15.6 RULES AND REGULATIONS. Tenant shall abide by the Rules and
Regulations set forth in EXHIBIT E, as the same may be reasonably modified from
time to time by Landlord. In the event that there shall be a conflict between
such Rules and Regulations and the provisions of this Lease, the provisions of
this Lease shall control.

         15.7 INVALIDITY OF PARTICULAR PROVISIONS. If any term or provision of
this Lease, or the application thereof to any person or circumstance shall, to
any extent, be invalid or unenforceable, the remainder of this Lease, or the
application of such term or provision to persons or circumstances other than
those as to which it is held invalid or unenforceable, shall not be affected
thereby, and each term and provision of this Lease shall be valid and be
enforced to the fullest extent permitted by law.

         15.8 PROVISIONS BINDING, ETC. Except as herein otherwise provided, the
terms hereof shall be binding upon and shall inure to the benefit of the
successors and assigns, respectively, of Landlord and Tenant (except in the case
of Tenant, ONLY such successors and assigns as may be permitted hereunder) and,
if Tenant shall be an individual, upon and to his heirs, executors,
administrators, successors and permitted assigns. Each term and each provision
of this Lease to be performed by Tenant shall be construed to be both a covenant
and a condition. Any reference

<PAGE>   42

in this Lease to successors and assigns of Tenant shall not be construed
to constitute a consent to assignment by Tenant.

         15.9 RECORDING. Tenant agrees not to record this Lease, but each party
hereto agrees, on the request of the other, to execute a notice of lease in
recordable form and complying with applicable law. In no event shall such
document set forth the rent or other charges payable by Tenant under this Lease;
and any such document shall expressly state that it is executed pursuant to the
provisions contained in this Lease, and is not intended to vary the terms and
conditions of this Lease. At Landlord's request, promptly upon expiration of or
earlier termination of the Term, Tenant shall execute and deliver to Landlord a
release of any document recorded in the real property records for the location
of the Property evidencing this Lease, and Tenant hereby appoints Landlord
Tenant's attorney-in-fact, coupled with an interest, to execute any such
document if Tenant fails to respond to Landlord's request to do so within
fifteen (15) days. The obligations of Tenant under this Section shall survive
the expiration or any earlier termination of the Term.

         15.10 NOTICE. All notices or other communications required hereunder
shall be in writing and shall be deemed duly given if delivered in person (with
receipt therefor), if sent by reputable overnight delivery or courier service
(e.g., Federal Express) providing for receipted delivery, or if sent by
certified or registered mail, return receipt requested, postage prepaid, to the
following address:

               (a)    if to Landlord at Landlord's Address, to the attention of
                      Robert Hale, Sr., with a copy to Maura Griffith  Moffatt,
                      Esq., Goodwin, Procter & Hoar LLP, Exchange Place, Boston,
                      MA 02109-2881, and an additional copy to Mr. Michael
                      Shuipis, 128 Oak Street, Duxbury, MA 02332.

               (b)    if to Tenant, at Tenant's Address, to the attention of CFO
                      and General Counsel, and after the Commencement Date, at
                      the Premises, to the attention of CFO and General Counsel,
                      with a copy to Keith R. Barnett, Esq., Hale & Dorr LLP, 60
                      State Street, Boston, MA 02109.

         Where receipt of notice or other communication shall be conclusively
established by either (i) return of a return receipt indicating that the notice
has been delivered; or (ii) return of the letter containing the notice with an
indication from the courier or postal service that the addressee has refused to
accept delivery of the notice. Either party may change its address for the
giving of notices by notice given in accordance with this Section.

         15.11 WHEN LEASE BECOMES BINDING; ENTIRE AGREEMENT; MODIFICATION. The
submission of this document for examination and negotiation does not constitute
an offer to lease, or a reservation of, or option for, the Premises, and this
document shall become effective and binding only upon the execution and delivery
hereof by both Landlord and Tenant. This Lease is the entire agreement between
Landlord and Tenant, and this Lease expressly supersedes any negotiations,
considerations, representations and understandings and proposals or other

<PAGE>   43

written documents relating hereto. This Lease may be modified or altered only by
written agreement between Landlord and Tenant, and no act or omission of any
employee or agent of Landlord shall alter, change or modify any of the
provisions hereof.

         15.12 PARAGRAPH HEADINGS AND INTERPRETATION OF SECTIONS. The paragraph
headings throughout this instrument are for convenience and reference only, and
the words contained therein shall in no way be held to explain, modify, amplify
or aid in the interpretation, construction or meaning of the provisions of this
Lease. The provisions of this Lease shall be construed as a whole, according to
their common meaning (except where a precise legal interpretation is clearly
evidenced), and not for or against either party. Use in this Lease of the words
"including," "such as" or words of similar import, when followed by any general
term, statement or matter, shall not be construed to limit such term, statement
or matter to the specified item(s), whether or not language of non-limitation,
such as "without limitation" or "including, but not limited to," or words of
similar import, are used with reference thereto, but rather shall be deemed to
refer to all other terms or matters that could fall within a reasonably broad
scope of such term, statement or matter.

         15.13 DISPUTE RESOLUTION. In the event of a dispute between Landlord
and Tenant pursuant to this Lease (other than a dispute relating to the payment
of Basic Rent and Additional Rent) the parties agree that prior to pursuing
other available remedies (excluding giving notices of default), they will
attempt to directly negotiate resolution of their dispute. If negotiation is
unsuccessful, then they agree to participate in at least three hours of
mediation to be facilitated by a mediator mutually acceptable to them under the
mediation procedures set by the mediator. The mediation session shall be
conducted within thirty (30) days of the date on which the mediator receives the
request to mediate. The costs of such mediation shall be shared equally by the
parties.

         15.14 WAIVER OF JURY TRIAL. Landlord and Tenant hereby each waive trial
by jury in any action, proceeding or counterclaim brought by either against the
other, on or in respect of any matter whatsoever arising out of or in any way
connected with this Lease, the relationship of Landlord and Tenant or Tenant's
use or occupancy of the Premises.

         15.15    TIME IS OF THE ESSENCE.  Time is of the essence of each
provision of this Lease.

         15.16 MULTIPLE COUNTERPARTS. This Lease may be executed in multiple
counterparts, each of which shall be deemed an original and all of which
together shall constitute one and the same document.

         15.17 GOVERNING LAW. This Lease shall be governed by the laws of the
state in which the Property is located.

         IN WITNESS WHEREOF, Landlord and Tenant have caused this Lease to be
duly

<PAGE>   44

executed, under seal, by persons hereunto duly authorized, as of the date
first set forth above.

                                        LANDLORD:

                                        Trunks Up LLC

                                        By:  /s/ Robert T. Hale
                                             -----------------------------------
                                             Name:  Robert T. Hale
                                             Title: Partner

                                        TENANT:

                                        Network Plus, Inc.

                                        By:  /s/ Robert T. Hale, Jr.
                                             -----------------------------------
                                             Name:  Robert T. Hale, Jr.
                                             Title: CEO

                                        By:  /s/ James J. Crowley
                                             -----------------------------------
                                             Name:  James J. Crowley
                                             Title: EVP and COO

<PAGE>   45

                                    EXHIBIT A
                            Legal Description of Land

<PAGE>   46

                                    EXHIBIT B
                              Site Plan of Building

<PAGE>   47

                                    EXHIBIT C
                            Commencement Date Letter

                                                   _________________, 1999

Mr. Robert Hale, Jr.
Mr. James J. Crowley
Network Plus, Inc.
41 Pacella Park Drive
Randolph, MA 02368

         RE:      Network Plus, Inc.
                  41 Pacella Park Drive
                  Randolph, MA

Dear Mr. Hale and Mr. Crowley:

         Reference is made to that certain Lease, dated as of , 2000, between
Trunks Up LLC, as Landlord and Network Plus, Ice. as Tenant, with respect to the
above-referenced building. In accordance with Section 4.1 of the Lease, this is
to confirm that the Commencement Date of the Term of the Lease occurred on March
1, 2005, and that the Term of the Lease shall expire on February 28, 2013.

         If the foregoing is in accordance with your understanding, kindly
execute the enclosed duplicate of this letter, and return the same to us.

                                              Very truly yours,

                                              Trunks Up LLC

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

<PAGE>   48

Accepted and Agreed:

Network Plus, Inc.

By:

     Name:  Robert Hale, Jr.
            ----------------------------
     Title:
            ----------------------------
     Date:
            ----------------------------

By:

     Name:  James J. Crowley
            ----------------------------
     Title:
            ----------------------------
     Date:
            ----------------------------

<PAGE>   49

                                    EXHIBIT D
                               Operating Expenses

Operating Expenses shall include the following:

   1.    All expenses incurred by Landlord or Landlord's agents which shall be
         directly related to employment of personnel, including amounts incurred
         for wages, salaries and other compensation for services, payroll,
         social security, unemployment and similar taxes, workmen's compensation
         insurance, disability benefits, pensions, hospitalization, retirement
         plans and group insurance, uniforms and working clothes and the
         cleaning thereof, and expenses imposed on Landlord or Landlord's agents
         pursuant to any collective bargaining agreement for the services of
         employees of Landlord or Landlord's agents in connection with the
         operation, repair, maintenance, cleaning, management and protection of
         the Property, including, without limitation, janitors, carpenters,
         engineers, mechanics, electricians and plumbers and personnel engaged
         in supervision of any of the persons mentioned above, but specifically
         excluding, officers and executives and other employees of Landlord not
         directly connected with the operation of the Property, except for a
         reasonable management fee which may be included in Operating Expenses
         as set forth in Item 4 below; provided that, if any such employee is
         also employed on other property of Landlord, such compensation shall be
         suitably prorated among the Property and such other properties.

   2.    The cost of services, utilities, materials and supplies furnished or
         used in the operation, repair, maintenance, cleaning, management and
         protection of the Property.

   3.    The cost of replacements for tools and other similar equipment used in
         the repair, maintenance, cleaning and protection of the Property,
         provided that, in the case of any such equipment used jointly on other
         property of Landlord, such costs shall be suitably prorated among the
         Property and such other properties.

   4.    Where the Property is managed by Landlord or an affiliate of Landlord,
         a sum equal to the amounts customarily charged by management firms in
         the Randolph area for similar single tenant properties where tenant
         maintains the property, but in no event more than five percent (5%) of
         gross annual income, whether or not actually paid, or where managed by
         other than Landlord or an affiliate thereof, the reasonable amounts
         accrued for management, together with, in either case, amounts accrued
         for legal and other professional fees relating to the Property, but
         excluding such fees and commissions paid in connection with services
         rendered for securing or renewing leases and for matters not related to
         the normal administration and operation of the Property.

   5.    Premiums for insurance against damage or loss to the Property from such
         hazards as Landlord shall reasonably determine, including, but not by
         way of limitation, insurance covering loss of rent attributable to any
         such hazards, and public

<PAGE>   50

         liability insurance.

   6.    If, during the Term of this Lease, Landlord shall make a capital
         expenditure, the total cost of which is not properly includable in
         Operating Expenses for the Operating Year in which it was made, there
         shall nevertheless be included in such Operating Expenses for the
         Operating Year in which it was made and in Operating Expenses for each
         succeeding Operating Year the annual charge-off of such capital
         expenditure. Annual charge-off shall be determined by dividing the
         original capital expenditure PLUS an interest factor, reasonably
         determined by Landlord, as being the interest rate then being
         charged for long-term mortgages by institutional lenders on like
         properties within the locality in which the Property is located, by the
         number of years of useful life of the capital expenditure; and the
         useful life shall be determined reasonably by Landlord in accordance
         with generally accepted accounting principles and practices in effect
         at the time of making such expenditure.

   7.    Costs for electricity, water and sewer use charges, gas and other
         utilities supplied to the Property and not paid for directly by
         tenants.

   8.    Betterment assessments, provided the same are apportioned equally over
         the longest period permitted by law, and to the extent, if any, not
         included in Taxes.

   9.    Amounts paid to independent contractors for services, materials and
         supplies furnished for the operation, repair, maintenance, cleaning and
         protection of the Property.

<PAGE>   51

                                    EXHIBIT E
                        Rules and Regulations of Building

         The following regulations are generally applicable:

   1.    Intentionally Omitted.

   2.    Intentionally Omitted.

   3.    Intentionally Omitted.

   4.    The water and wash closets and other plumbing fixtures shall not be
         used for any purposes other than those for which they were designed and
         constructed, and no sweepings, rubbish, rags, acids or like substances
         shall be deposited therein. All damages resulting from any misuse of
         the fixtures shall be borne by the Tenant.

   5.    Tenant shall not use the Premises or any part thereof or permit the
         Premises or any part thereof to be used other than for the Permitted
         Uses. Tenant shall not use the Premises or any part thereof or permit
         the Premises or any part thereof to be used as a public employment
         bureau or for the sale of property of any kind at auction, except in
         connection with Tenant's business.

   6.    Tenant must, upon the termination of its tenancy, return to the
         Landlord all locks, cylinders and keys to offices and toilet rooms of
         the Premises.

   7.    Intentionally Omitted.

   8.    Tenant shall not make, or permit to be made, any unseemly or disturbing
         noises or disturb or interfere with occupants of any neighboring
         building or premises or those having business with them whether by use
         of any musical instrument, radio, talking machine, unmusical noise,
         whistling, singing, or in any other way. Tenant shall not throw
         anything out of the doors, windows or skylights or down the
         passageways.

   9.    The Premises shall not be used for lodging or sleeping or for any
         immoral or illegal purpose.

  10.    Intentionally Omitted.

  11.    Intentionally Omitted.

  12.    Intentionally Omitted.

  13.    The rules and regulations set forth in ATTACHMENT I to this Exhibit,
         which is by this reference made a part hereof, are applicable to any
         Alterations being undertaken by or for Tenant in the Premises pursuant
         to SECTION 5.2 of the Lease:

<PAGE>   52

                            Attachment I to Exhibit E
                  RULES AND REGULATIONS FOR TENANT ALTERATIONS

A.       GENERAL

         1. All Alterations made by Tenant in, to or about the Premises shall be
made in accordance with the requirements of this Exhibit and by contractors or
mechanics approved by Landlord in its reasonable discretion.

         2. Tenant shall, prior to the commencement of any work, submit for
Landlord's written approval, complete plans for the Alterations, with full
details and specifications for all of the Alterations, in compliance with
Section D below.

         3. Alterations must comply with the Building Code applicable to the
Property and the requirements, rules and regulations and any other governmental
agencies having jurisdiction.

         4. No work shall be permitted to commence before Tenant obtains and
furnishes to Landlord copies of all necessary licenses and permits from all
governmental authorities having jurisdiction.

         5. Intentionally Omitted.

         6. Intentionally omitted.

         7. All work, if performed by a contractor or subcontractor, shall be
subject to reasonable inspection by Landlord's representative. Such inspection
shall be at Tenant's sole expense and Tenant shall pay Landlord's reasonable
charges for such supervision and inspection.

         B. PRIOR TO COMMENCEMENT OF WORK

         1. Tenant shall submit to the Building manager a request to perform the
work. The request shall include the following enclosures:

                 (i)   A list of Tenant's contractors and/or subcontractors for
                       Landlord's approval not to be unreasonably withheld,
                       conditioned or delayed.

                 (ii)  Four complete sets of plans and specifications prepared
                       by an architect of engineer reasonably satisfactory to
                       Landlord and, to the extent legally required, properly
                       stamped by a registered architect or professional
                       engineer.

                 (iii) A properly executed building permit application form to
                       the extent required by applicable law .

                 (iv)  Four executed copies of the Insurance Requirements
                       Agreement in the form attached to this Exhibit as
                       ATTACHMENT II and made a part hereof from Tenant's
                       contractor and, if requested by Landlord,

<PAGE>   53

                       from the contractor's subcontractors.

                 (v)   Contractor's and subcontractor's insurance certificates,
                       including an indemnity in accordance with the Insurance
                       Requirements Agreement.

         2. Landlord will within seven (7) Business Days return the following
to Tenant:

                 (i)   Two sets of plans approved or a disapproved with specific
                       comments as to the reasons therefor (such approval or
                       comments shall not constitute a waiver of approval of
                       governmental authorities).

                 (ii)  Two fully executed copies of the Insurance Requirements
                       Agreement.

         3. Landlord's approval of the plans, drawings, specifications or other
submissions in respect of any Alterations shall create no liability or
responsibility on the part of Landlord for their completeness, design
sufficiency or compliance with requirements of any applicable laws, rules or
regulations of any governmental or quasi-governmental agency, board or
authority.

         4. To the extent required by applicable law, Tenant shall obtain a
building permit from the Building Department and necessary permits from other
governmental agencies. Tenant shall be responsible for keeping current all
permits. Tenant shall submit copies of all approved plans and permits to
Landlord and shall post the original permit on the Premises prior to the
commencement of any work.

         C. REQUIREMENTS AND PROCEDURES

         1. All structural and floor loading requirements shall be subject to
the prior approval of Landlord's structural engineer.

         2. All mechanical (HVAC, plumbing and sprinkler) and electrical
requirements shall be subject to the approval of Landlord's mechanical and
electrical engineers in their reasonable professional judgment. When necessary,
Landlord will require engineering and shop drawings, which drawings must be
approved by Landlord in its reasonable judgment before work is started. Drawings
are to be prepared by Tenant and all approvals shall be obtained by Tenant.

         3. No material or equipment shall be carried under or on top of
elevators. If an operating engineer is required by any union regulations, such
engineer shall be paid for by Tenant.

         4. If shutdown of risers and mains for electrical, HVAC, sprinkler and
plumbing work is required, such work shall be supervised by Landlord's
representative. No work will be performed in Building mechanical equipment rooms
without Landlord's approval, not to be unreasonably withheld, conditioned or
delayed, and under Landlord's supervision.

         5. Tenant's contractor shall:

<PAGE>   54
                 (i)   have a superintendent or foreman on the Premises at
                       all times;

                 (ii)  police the job at all times, continually keeping the
                       Premises orderly;

                 (iii) maintain cleanliness and protection of all areas,
                       including elevators and lobbies.

                 (iv)  protect the front and top of all peripheral HVAC units
                       and thoroughly clean them at the completion of work; and

                 (v)   block off supply and return grills, diffusers and ducts
                       to keep dust from entering into the Building air
                       conditioning system.

         6. If Tenant's contractor is negligent in any of its responsibilities,
Tenant shall be charged for corrective work.

         7. All equipment and installations must be equal to the standards
generally in effect with respect to the remainder of the Building. Any deviation
from such standards will be permitted only if indicated or specified on the
plans and specifications and approved by Landlord.

         8. A properly executed air balancing report signed by a professional
engineer shall be submitted to Landlord upon the completion of all HVAC work.

         9. Upon completion of the Alterations, Tenant shall submit to Landlord
a permanent certificate of occupancy and final approval by the other
governmental agencies having jurisdiction to the extent required by applicable
law.

         10. Tenant shall submit to Landlord a final "as-built" set of drawings
showing all items of the Alterations in full detail.

         11. Additional and differing provisions in the Lease, if any, will be
applicable and will take precedence.

D.       STANDARDS FOR PLANS AND SPECIFICATIONS.

         Whenever Tenant shall be required by the terms of the Lease (including
this Exhibit) to submit plans to Landlord in connection with any Alterations,
such plans shall include at least the following, to the extent applicable:

         1.  Floor plan indicating location of partitions and doors (details
required of partition and door types).

         2.  Location of standard electrical convenience outlets and telephone
outlets.

         3.  Location and details of special electrical outlets, E.G.,
photocopiers, etc.

<PAGE>   55

         4. Reflected ceiling plan showing layout of standard ceiling and
lighting fixtures. Partitions to be shown lightly with switches located
indicating fixtures to be controlled.

         5. Locations and details of special ceiling conditions, lighting
fixtures, speakers, etc.

         6. Location and specifications of floor covering, paint or paneling
with paint colors referenced to standard color system.

         7. Finish schedule plan indicating wall covering, paint, or paneling
with paint colors referenced to standard color system.

         8. Details and specifications of special millwork, glass partitions,
rolling doors and grilles, blackboards, shelves, etc.

         9. Hardware schedule indicating door number keyed to plan, size,
hardware required including butts, latchets or locksets, closures, stops, and
any special items such as thresholds, soundproofing, etc. Keying schedule is
required.

         10. Verified dimensions of all built-in equipment (file cabinets,
lockers, plan files, etc.)

         11. Location and weights of storage files.

         12. Location of any special soundproofing requirements.

         13. Location and details of special floor areas exceeding 50 pounds of
live load per square foot.

         14. All structural, mechanical, plumbing and electrical drawings, to be
prepared by the base building consulting engineers, necessary to complete the
Premises in accordance with Tenant's Plans.

         15. All drawings to be uniform size (30" x 46") and shall incorporate
the standard project electrical and plumbing symbols and be at a scale of 1/8" =
1' or larger.

         16. All drawings shall be prepared by an architect (or, where
applicable, an engineer) reasonably satisfactory to Landlord and, to the extent
legally required, stamped by an architect (or, where applicable, an engineer)
licensed in the jurisdiction in which the Property is located and without
limiting the foregoing, shall be sufficient in all respects for submission to
applicable authorization in connection with a building permit application.

<PAGE>   56
                           Attachment II to Exhibit E
                       Contractor's Insurance Requirements
                       -----------------------------------

Building:

Landlord:

Tenant:

Premises:

The undersigned contractor or subcontractor ("CONTRACTOR") has been hired by the
tenant named above (hereinafter called "TENANT") of the Building named above (or
by Tenant's contractor) to perform certain work ("WORK") for Tenant in the
Premises identified above. Contractor and Tenant have requested the landlord
named above ("LANDLORD") to grant Contractor access to the Building and its
facilities in connection with the performance of the Work, and Landlord agrees
to grant such access to Contractor upon and subject to the following terms and
conditions:

         1. Contractor agrees to indemnify and save harmless Landlord and its
respective officers, employees and agents and their affiliates, subsidiaries and
partners, and each of them, from and with respect to any claims, demands, suits,
liabilities, losses and expenses, including reasonable attorneys' fees, arising
out of or in connection with the Work (and/or imposed by law upon any or all of
them) because of personal injuries, bodily injury (including death at any time
resulting therefrom) and loss of or damage to property, including consequential
damages, whether such injuries to person or property are claimed to be due to
negligence of the Contractor, Tenant, Landlord or any other party entitled to be
indemnified as aforesaid except to the extent specifically prohibited by law
(and any such prohibition shall not void this Agreement but shall be applied
only to the minimum extent required by law).

         2. Contractor shall provide and maintain at its own expense, until
completion of the Work, the following insurance:

                 (a)       Workmen's Compensation and Employers, Liability
                           Insurance covering each and every workman employed
                           in, about or upon the Work, as provided for in each
                           and every statute applicable to Workmen's
                           Compensation and Employers' Liability Insurance.

                 (b)       Comprehensive General Liability Insurance including
                           coverages for Protective and Contractual Liability
                           (to specifically include coverage for the
                           indemnification clause of this Agreement) for not
                           less than the following limits:

                           Personal Injury:

                           $3,000,000 per person, $10,000,000 per occurrence
                           for jobs over $100,000

<PAGE>   57

                           $1,000,000 per person, $5,000,000 per occurrence for
                           jobs under $100,000

                           Property Damage:
                           $3,000,000 per occurrence $3,000,000 aggregate for
                           jobs over $100,000
                           $1,000,000 per occurrence $1,000,000 aggregate for
                           jobs under $100,000

                 (c)       Comprehensive Automobile Liability Insurance
                           (covering all owned, non-owned and/or hired motor
                           vehicles to be used in connection with the Work) for
                           not less than the following limits:

                           Bodily Injury:
                           $1,000,000 per person
                           $1,000,000 per occurrence

                           Property Damage:
                           $1,000,000 per occurrence

         Contractor shall furnish a certificate from its insurance carrier or
carriers to the Building office before commencing the Work, showing that it has
complied with the above requirements regarding insurance and providing that the
insurer will give Landlord ten (10) days' prior written notice of the
cancellation of any of the foregoing policies.

         3. Contractor shall require all of its subcontractors engaged in the
Work to provide the following insurance:

                 (a)       Comprehensive General Liability Insurance including
                           Protective and Contractual Liability coverages with
                           limits of liability at least equal to the limits
                           stated in paragraph 2(b).

                 (b)       Comprehensive Automobile Liability Insurance
                           (covering all owned, non-owned and/or hired motor
                           vehicles to be used in connection with the Work) with
                           limits of liability at least equal to the limits
                           stated in paragraph 2(c).

         Upon the request of Landlord, Contractor shall require all of its
subcontractors engaged in the Work to execute an Insurance Requirements
agreement in the same form as this Agreement.

         Agreed to and executed this day of               , 19  .

                                           Contractor:

                                           By:
                                              ----------------------------------

                                           By:
                                              ----------------------------------

<PAGE>   58

                                           By:
                                              ----------------------------------

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