Document:

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                                                                   EXHIBIT 10.5
                               ARAMARK CORPORATION
                      AGREEMENT RELATING TO EMPLOYMENT AND
                           POST-EMPLOYMENT COMPETITION

This Agreement is between the undersigned individual ("Employee") and ARAMARK
CORPORATION ("ARAMARK").

                                    RECITALS

A.       ARAMARK is the leading provider of managed services to business and
         industry, private and public institutions, and the general public, in
         the following business segments: food, leisure and support services;
         health and education services; magazine and book services; and uniform
         services.

B.       ARAMARK has a proprietary interest in its business and financial plans
         and systems, methods of operation and other secret and confidential
         information, knowledge and data ("Proprietary Information") which
         includes, but is not limited to, annual and strategic business plans;
         financial plans, reports and systems including, profit and loss
         statements and other information regarding costs, profits, sales and
         the financial condition of ARAMARK and its business units; management
         development reviews, including information regarding the capabilities
         and experience of ARAMARK employees; information regarding ARAMARK's
         relationships with its clients, customers, and suppliers and
         prospective clients, customers and suppliers; and technical data and
         know-how, including policy and procedure manuals, computer programs,
         recipes, accounting forms and procedures and human resource policies
         and procedures, all of which information is not publicly disclosed and
         is considered by ARAMARK to be confidential trade secrets.

C.       Employee shall be employed in a senior management position and shall
         have access to ARAMARK's Proprietary Information, directly in the
         course of Employee's employment,

         *This Agreement covers individuals in Band 1.

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         and indirectly through interaction with and presentations by other
         senior managers at the Executive Leadership Institute, Executive
         Leadership Council meetings, President's Council meetings, Chairman's
         Council meetings and the like, and ARAMARK will encourage Employee to
         develop personal relationships with ARAMARK's clients, prospective
         clients and suppliers.

D.       ARAMARK will be vulnerable to unfair post-employment competition by
         Employee since Employee will have access to and knowledge of ARAMARK's
         Proprietary Information and will have a personal relationship with
         ARAMARK's clients, prospective clients and suppliers.

E.       In consideration of employment, the severance and other post-employment
         benefits provided for herein, Employee is willing to enter into this
         Agreement with ARAMARK as a condition of employment pursuant to which
         Employee will limit Employee's right to compete against ARAMARK
         following termination of employment on the terms set forth in this
         Agreement.

                  NOW, THEREFORE, intending to be legally bound, the parties
agree as follows:

ARTICLE 1. NON-DISCLOSURE AGREEMENT: ARAMARK shall, in the course of employment,
provide and confide to Employee ARAMARK's Proprietary Information developed at
great expense by ARAMARK and which Employee recognizes to be unique assets of
ARAMARK's business. Employee shall not, during or after the term of employment,
directly or indirectly, in any manner utilize or disclose to any person, firm,
corporation, association or other entity, except where required by law, any such
Proprietary Information which is not generally known to the public or recognized
as standard practice in the industries in which ARAMARK is engaged.

ARTICLE  2.  NON-COMPETITION AGREEMENT:

A.       Subject to Article 2 B below, Employee, for a period of two years
         following the voluntary or involuntary termination of employment, shall

                                      -2-
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         not, without ARAMARK's written permission, directly or indirectly,
         become employed by (as an employee, consultant or otherwise), or
         acquire or maintain any ownership interest in any Business which is
         similar to or competitive with that conducted by or developed for later
         implementation by ARAMARK at any time during the term of Employee's
         employment, provided, however, if Employee's employment is
         involuntarily terminated by ARAMARK for any reason other than good and
         sufficient cause, the term of the non-competition provision set forth
         herein, will be modified to the longer of (i) one year, (ii) the number
         of months Employee receives severance payments or (iii) the number of
         months Employee is entitled to receive severance payments pursuant to
         Article 5 A below. For purposes of this Agreement, "Business" shall be
         defined as a person, corporation, firm, partnership, joint venture or
         other entity.

B.       The provision set forth in Article 2 A above, shall apply to (i) all
         fifty states, and (ii) each foreign country, possession or territory in
         which ARAMARK may be engaged in business as of the effective date of
         termination or at any time during the twelve month period prior
         thereto. Further, notwithstanding anything in this Agreement to the
         contrary, Article 2 A above shall not limit Employee's right to engage
         in any business or activity if such business or activity is unrelated
         to the type of business or activity conducted by the business segment
         or segments for which Employee directly or indirectly provided services
         during the twenty-four month period preceding Employee's effective date
         of termination unless Employee otherwise directly or indirectly
         acquired knowledge of Proprietary Information for such business segment
         or segments at any time during the twenty-four month period preceding
         Employee's effective date of termination. By way of example, but not
         limitation, if Employee provided services to one of the business units
         of ARAMARK Food and Support Services Group, Employee would be precluded
         during the applicable time period from being employed by any Business
         providing food, leisure and support services (irrespective of the
         particular ARAMARK business unit that employed Employee) but Employee
         would not be precluded from working for a competitor in the magazine
         and book distribution business or uniform rental business, unless
         Employee had acquired knowledge of Proprietary Information for
         ARAMARK's Magazine and Book Distribution business or Uniform Rental
         businesses within twenty-four months prior to termination, as a result
         of task force assignments, special projects, attendance at the
         Executive Leadership Institute, Executive Leadership Council meetings,
         President's Council meetings, Chairman's Council meetings, and the
         like.

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C.       Employee acknowledges that enforcement of the provisions set forth in
         this Article 2 will not unduly impair Employee's ability to obtain
         other employment following the termination (voluntary or involuntary)
         of Employee's employment with ARAMARK. Further, Employee acknowledges
         that the provisions set forth in this Article 2 shall apply if Employee
         is involuntarily terminated for good and sufficient cause; as a result
         of the elimination of employee's position; for performance related
         issues; or for any other reason or no reason at all.

ARTICLE 3. NON-SOLICITATION OF EMPLOYEES: Employee shall not for a period of two
years following the voluntary or involuntary termination of employment, directly
or indirectly, at any time, in any manner, induce or attempt to influence any
employees of ARAMARK to terminate their employment with ARAMARK.

ARTICLE 4. REMEDIES: Employee acknowledges that in the event of any violation by
Employee of the provisions set forth in Articles 1, 2 or 3 above, ARAMARK will
sustain serious, irreparable and substantial harm to its business, the extent of
which will be difficult to determine and impossible to fully remedy by an action
at law for money damages. Accordingly, Employee agrees that, in the event of
such violation or threatened violation by Employee, ARAMARK shall be entitled to
an injunction before trial before any court of competent jurisdiction as a
matter of course upon the posting of not more than a nominal bond, in addition
to all such other legal and equitable remedies as may be available to ARAMARK.
If ARAMARK is required to enforce the provisions set forth in Articles 2 and 3
above by seeking an injunction, Employee agrees that the relevant time periods
set forth in Articles 2 and 3 shall commence with the entry of the injunction.
Employee further agrees that, in the event any of the provisions of this
Agreement are determined by a court of competent jurisdiction to be contrary to
any applicable statute, law or rule, or for any reason unenforceable as written,
such court may modify any such provisions so as to permit enforcement thereof as
modified.

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ARTICLE 5.  POST-EMPLOYMENT BENEFITS:

A.       If Employee is terminated by ARAMARK for any reason other than good and
         sufficient cause, Employee shall be entitled to the following
         post-employment benefits:

         1.       Severance Pay: Employee shall receive severance payments
                  equivalent to Employee's monthly base salary as of the
                  effective date of termination for the number of months set
                  forth on the following schedule:

                       Years of ARAMARK Continuous Service
                          Completed From last Hire Date

                  2     3     4    5     6    7    8     9       10 or more
                  -     -     -    -     -    -    -     -       ----------
                  9     9     10   11    12   13   14    16          18

                  Severance payments shall commence with the Employee's
                  effective date of termination and shall be made in accordance
                  with ARAMARK's normal payroll cycle. The period during which
                  employee receives severance payments shall be referred to as
                  the "Severance Pay Period".

         2.       Other Post Employment Benefits:

                  a.       Basic Group medical and life insurance coverages
                           shall continue under then prevailing terms during the
                           Severance Pay Period. Employee's share of the
                           premiums will be deducted from Employee's severance
                           payments. Basic Group medical coverage provided
                           during such period shall be applied against ARAMARK's
                           obligation to continue group medical coverage under
                           the Consolidated Omnibus Budget Reconciliation Act of
                           1985 ("COBRA"). Upon termination of basic group
                           medical and life coverages, Employee may convert such
                           coverages to individual policies to the extent
                           allowable under plan provisions.

                                      -5-
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                  b.       Employee's leased vehicle shall be made available to
                           Employee through the Severance Pay Period at which
                           time Employee has the option to either purchase the
                           vehicle in accordance with the Executive Leadership
                           Council plan then in effect or return it to ARAMARK.

                  c.       Employee's eligibility to receive or participate in
                           all other benefit and compensation plans, including,
                           but not limited to the Management Incentive Bonus,
                           Long Term Disability, Stock Unit Retirement and any
                           stock option or ownership plans, shall terminate as
                           of the effective date of Employee's termination
                           unless provided otherwise under the terms of a
                           particular plan, provided, however, participation in
                           plans and programs made available solely to Executive
                           Leadership Council members, including, but not
                           limited to the Executive Leadership Council Medical
                           Plan, shall cease as of the effective date of
                           termination or the date Employee's Executive
                           Leadership Council membership ceases, whichever
                           occurs first. Employee, however, shall have certain
                           rights to continue the Executive Leadership Council
                           Medical Plan under COBRA.

B.       Termination for "Good and sufficient cause" shall be defined as
         termination for such things as fraud, dishonesty or willful failure to
         perform assigned duties, willful violation of ARAMARK's Business
         Conduct Policy, or intentionally working against the best interest of
         ARAMARK.

C.       If Employee is terminated by ARAMARK for reasons other than good and
         sufficient cause, Employee will receive the severance payments and
         other post-employment benefits during the Severance Pay Period even if
         Employee commences other employment during such period provided such
         employment does not violate the terms of Article 2.

D.       ARAMARK reserves the right to terminate all severance payments and
         other post-employment benefits if Employee violates the covenants set
         forth in Articles 1, 2 and 3 above.

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E.       ARAMARK expressly reserves the rights to revoke or amend, in whole or
         in part, the severance provisions set forth in this agreement at any
         time, for any reason, provided, however, in the event Employee is
         terminated for reasons other than good and sufficient cause subsequent
         to such revocation or amendment, Employee shall be entitled to no less
         than the monthly severance payments which Employee would have received
         under this Agreement had he been terminated by ARAMARK on the date
         ARAMARK elected to revoke or amend the severance provisions.

ARTICLE 6. TERM OF EMPLOYMENT: Employee acknowledges that ARAMARK has the right
to terminate Employee's employment at any time for any reason whatsoever,
provided, however, that any termination by ARAMARK for reasons other than good
and sufficient cause, shall result in the severance and the post-employment
benefits described in Article 5 above, to become due in accordance with the
terms of this Agreement subject to the conditions set forth in this Agreement.
Employee further acknowledges that the severance payments made and other
benefits provided by ARAMARK are in full satisfaction of any obligations ARAMARK
may have resulting from ARAMARK's exercise of its right to terminate Employee's
employment, except for those obligations which are intended to survive
termination such as the payments to be made pursuant to retirement plans and
conversion of insurance.

ARTICLE 7.  MISCELLANEOUS:

A.       As used throughout this Agreement, ARAMARK includes ARAMARK CORPORATION
         and its subsidiaries and affiliates or any corporation, joint venture,
         or other entity in which ARAMARK CORPORATION or its subsidiaries or
         affiliates has an equity interest in excess of ten percent (10%).

B.       This Agreement shall supersede and substitute for any previous
         post-employment or severance agreement between Employee and ARAMARK,
         and is entered into in consideration of the mutual undertakings of the
         parties and the cancellation of all previous agreements.

                                      -7-
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C.       The terms of this Agreement shall be governed by the laws of the
         Commonwealth of Pennsylvania.

D.       Employee and ARAMARK acknowledge that for purposes of Article 5,
         Employee's last hire date with ARAMARK is December 1, 1980.

         IN WITNESS WHEREOF, and intending to be legally bound, the parties
hereto have caused this Agreement to be signed.

Date:    April 17, 2000                       ARAMARK CORPORATION

                                              By: /s/  Brian G. Mulvaney
                                                  -----------------------------
                                                       Brian G. Mulvaney

                                              By: /s/  John J. Zillmer
                                                 ------------------------------
                                                       John J. Zillmer<PAGE>   1
                      AGREEMENT AND PLAN OF REORGANIZATION

         THIS AGREEMENT AND PLAN OF REORGANIZATION (the "Agreement") is entered
into as of October 26, 2000, by and among NETWORK SYSTEMS INTERNATIONAL, INC., a
Nevada corporation ("NESI"), NESI ACQUISITION, CORP., a Virginia corporation and
a wholly-owned subsidiary of NESI ("Merger Sub"), INTERLAN COMMUNICATIONS, INC.,
a Virginia corporation ("INTERLAN") and G. ANTHONY MUNNO, BRIAN IANNIELLO and
MARTIN CARTER (each of whom is a stockholder of INTERLAN, and who are
collectively referred to herein as the "Principals" and each individual is
referred to as a "Principal").

                                    RECITALS

         The parties intend that, subject to the terms and conditions of this
Agreement:

         Merger Sub will merge with and into INTERLAN in a statutory merger,
with INTERLAN to be the corporation surviving the Merger (as defined below), all
pursuant to the terms and conditions of this Agreement and a Plan of Merger in
the form of Exhibit "A" attached hereto (the "Plan of Merger") and the
applicable provisions of the law of the State of Virginia.

         Upon the effectiveness of the Merger, all of the outstanding capital
stock of INTERLAN will be converted into shares of NESI Common Stock, as
provided in this Agreement and the Plan of Merger. The Merger is intended to be
treated as a tax-free reorganization pursuant to the provisions of Section
368(a)(1)(A) of the Internal Revenue Code of 1986, as amended (the "Code") by
virtue of the provisions of Section 368(a)(2)(E) of the Code.

         NOW, THEREFORE, the parties hereto hereby agree as follows:

1. CERTAIN DEFINITIONS. As used in this Agreement, the following terms have the
meanings set forth below:

         1.1 "NESI COMMON STOCK" means the Common Stock of NESI, $.001 par value
per share.

         1.2 "INTERLAN COMMON STOCK" means the Common Stock of INTERLAN, $1.00
par value per share.

         1.3 "EFFECTIVE TIME" means the time and date on which a Certificate of
Merger (the "Certificate of Merger") has been filed with the State Corporation
Commission of the State of Virginia and the Merger becomes effective under
Virginia law.

         1.4 "MERGER" means the statutory merger of Merger Sub with and into
INTERLAN in a reverse triangular merger pursuant to this Agreement and the Plan
of Merger.

                                      -1-
<PAGE>   2
         Other capitalized terms defined elsewhere in this Agreement and not
defined in this Section 1 have the meanings assigned to such terms in this
Agreement.

2. PLAN OF REORGANIZATION

         2.1 THE MERGER. At the Effective Time, Merger Sub will be merged with
and into INTERLAN pursuant to this Agreement and the Plan of Merger and in
accordance with applicable provisions of the laws of the State of Virginia. Each
share of INTERLAN Common Stock issued and outstanding immediately prior to the
Effective Time will, by virtue of the Merger and at the Effective Time, and
without further action on the part of any holder thereof, be converted into such
number of shares and cash consideration as is shown on Exhibit 2.1.

         2.2 ADJUSTMENTS FOR CAPITAL CHANGES. If, prior to the Effective Time,
NESI or INTERLAN recapitalizes through a split-up of its outstanding shares into
a greater number, or a combination of its outstanding shares into a lesser
number, reorganizes, reclassifies or otherwise changes its outstanding shares
into the same or a different number of shares of other classes (other than
through a split-up or combination of shares provided for in the previous
clause), or declares a dividend on its outstanding shares payable in shares,
securities convertible into shares or other property, then the number of shares
of NESI Common Stock into which each share of INTERLAN Common Stock is to be
converted ill be adjusted appropriately.

         2.3 FRACTIONAL SHARES. No fractional shares of NESI Common Stock will
be issued in connection with the Merger, but in lieu thereof, the holders of
INTERLAN Common Stock who would otherwise be entitled to receive a fraction of a
share of NESI Common Stock will receive an additional share of NESI Common
Stock.

         2.4 OPTIONS; OTHER SECURITIES. No shares of NESI Common Stock (or any
other securities of NESI) shall be issued or issuable with respect to options to
purchase INTERLAN Common Stock or with respect to any other equity securities of
INTERLAN (including warrants), other than INTERLAN Common Stock, and all such
options or other equity securities shall be canceled at the Effective Time.

         2.5 EFFECTS OF THE MERGER. At the Effective Time: (a) the separate
existence of the Merger Sub will cease and Merger Sub will be merged with and
into INTERLAN, and INTERLAN will be the surviving corporation of the Merger,
pursuant to the terms of the Plan of Merger; (b) the Certificate of
Incorporation and Bylaws of INTERLAN will continue unchanged to be the
Certificate of Incorporation and Bylaws of the surviving corporation of the
Merger; (c) each share of capital stock of Merger Sub outstanding immediately
prior to the Effective Time will be converted into one share of INTERLAN; (d)
the directors and certain officers of NESI shall become the directors and
officers of the surviving corporation as set forth in the Plan of Merger; (e)
each share of INTERLAN Common Stock outstanding immediately prior to the
Effective Time will be converted into the right

                                      -2-
<PAGE>   3
to receive that number of shares of NESI Common Stock as provided in Section
2.1; and (f) the Merger will, from and after the Effective Time, have all of the
effects provided by applicable law.

         2.6 FURTHER ASSURANCES. Each of INTERLAN and the Principals agree that
if, at any time after the Effective Time, NESI considers or is advised that any
further deeds, assignments or assurances are reasonably necessary or desirable
to vest, perfect or confirm in NESI title to any property or rights of INTERLAN,
NESI and its officers and directors may execute and deliver all such proper
deeds, assignments and assurances and do all other things necessary or desirable
to vest, perfect or confirm title to such property or rights in NESI and
otherwise carry out the purpose of this Agreement, in the name of INTERLAN or
otherwise.

         2.7 SECURITIES LAW COMPLIANCE. NESI will issue the shares of NESI
Common Stock in the Merger pursuant to the "private placement" exemption from
registration under Section 4(2) of, or Regulation D promulgated under, the
Securities Act of 1933, as amended (the "Securities Act"), and the shares
received by the Principals in the Merger will therefore be restricted securities
within the meaning of Rule 144 of the Securities Act, and certificates
evidencing such shares will bear a restrictive legend evidencing that fact.

         2.8 TAX-FREE REORGANIZATION. The parties intend to adopt this Agreement
as a tax-free plan of reorganization and to consummate the Merger in accordance
with the provisions of Section 368(a)(1)(A) of the Code. The parties have
negotiated the Merger on an arm's-length basis, and on the premise that the
value of the NESI Common Stock plus the cash payment received in the Merger is
equal to the value of the INTERLAN Common Stock to be surrendered in exchange
therefor. In addition, NESI and the Principals represent that now, and as of the
Effective Time, each of them presently intends to continue INTERLAN's historic
business or use a significant portion of INTERLAN's business assets in a
business. The provisions and representations contained in this paragraph shall
survive until the expiration of the applicable statute of limitations.

3. REPRESENTATIONS AND WARRANTIES OF INTERLAN AND PRINCIPALS

         Each of the Principals and INTERLAN, jointly and severally, hereby
represents and warrants to NESI as follows:

         3.1 ORGANIZATION, GOOD STANDING AND QUALIFICATION. INTERLAN is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Virginia, has the corporate power and authority to own, operate
and lease its properties and to carry on its business as now conducted and as
proposed to be conducted. INTERLAN is not qualified as a foreign corporation in
any other jurisdiction, and there is no jurisdiction in which a failure to be so
qualified could reasonably be expected to have a material adverse effect on the
business, operations, financial condition or prospects of INTERLAN.

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<PAGE>   4
         3.2      POWER, AUTHORIZATION AND VALIDITY.

                  3.2.1 INTERLAN and each Principal has the corporate or other
right, power, legal capacity and authority to enter into and perform its
obligations under this Agreement and all agreements to which INTERLAN or such
Principal is or will be a party that are required to be executed at the Closing
(defined below) pursuant to this Agreement (the "INTERLAN Ancillary
Agreements"). The execution, delivery and performance of this Agreement and the
INTERLAN Ancillary Agreements to which INTERLAN is a party have been duly and
validly approved and authorized by the Board of Directors of INTERLAN. The
Merger has been approved by all of the stockholders of INTERLAN.

                  3.2.2 No filing, authorization or approval, governmental or
otherwise, is necessary to enable INTERLAN and the Principals to enter into, and
to perform its obligations under, this Agreement and the INTERLAN Ancillary
Agreements, except for (a) the filing of the Certificate of Merger with the
State Corporation Commission of the State of Virginia , (b) the filing of
appropriate documents with the relevant authorities of other states in which
INTERLAN is qualified to do business, if any, and (c) such filings as may be
required to comply with federal and state securities laws.

                  3.2.3 This Agreement and the INTERLAN Ancillary Agreements
are, or when executed by INTERLAN and/or the Principals, as applicable, will be,
valid and binding obligations of INTERLAN and/or the Principals, as applicable,
enforceable in accordance with their respective terms, except as to the effect,
if any, of (a) applicable bankruptcy and other similar laws affecting the rights
of creditors generally and (b) rules of law governing specific performance,
injunctive relief and other equitable remedies; provided, however, that the
Certificate of Merger will not be effective until the Effective Time.

         3.3 CAPITALIZATION. As of the date hereof, the authorized capital stock
of INTERLAN consists of 15,000 shares of INTERLAN Common Stock, $1.00 par value,
of which 14,000 shares are issued and outstanding. All issued and outstanding
shares of INTERLAN Common Stock have been duly authorized and validly issued,
are fully paid and nonassessable (except as provided in the State of Virginia's
Business Corporation Statutes, are not subject to any right of rescission, and
have been offered, issued, sold and delivered by INTERLAN, in compliance with
all registration or qualification requirements (or applicable exemptions
therefrom) of applicable federal and state securities laws. Schedule 3.3 of the
INTERLAN Schedule of Exceptions sets forth a true, correct and complete list of
all holders of INTERLAN Common Stock at Closing. There will be no options,
warrants, calls, commitments, conversion privileges or preemptive or other
rights or agreements outstanding to purchase or otherwise acquire any of
INTERLAN's authorized but unissued capital stock or any securities convertible
into or exchangeable for shares of INTERLAN capital stock or obligating INTERLAN
to grant, extend, or enter into any such option, warrant, call, commitment,
conversion privilege or other right or agreement, and there is no liability for
dividends accrued but unpaid at Closing. There will be no voting agreements,
rights of first refusal or other restrictions (other than normal restrictions on
transfer under applicable federal and state securities laws)

                                      -4-
<PAGE>   5
applicable to any of INTERLAN's outstanding securities. INTERLAN is not under
any obligation to register under the Securities Act any of its presently
outstanding securities or any securities that may be subsequently issued. All
holders of INTERLAN Common Stock reside in the State of Virginia.

         3.4 SUBSIDIARIES. INTERLAN does not presently own or control, directly
or indirectly, any interest in any other corporation, partnership, trust, joint
venture, association, or other entity.

         3.5 NO VIOLATION OF EXISTING AGREEMENTS. Neither the execution and
delivery of this Agreement or any INTERLAN Ancillary Agreement, nor the
consummation of the transactions contemplated hereby or thereby, will conflict
with, or (with or without notice or lapse of time, or both) result in a
termination, breach or violation of, or cause an acceleration or amendment of
any obligation under, (a) any provision of the Certificate of Incorporation or
Bylaws of INTERLAN, as currently in effect, (b) in any material respect, any
Material Agreement (as defined in Section 3.11) to which INTERLAN is a party or
by which INTERLAN or the Principals or his, her or its assets or properties are
bound, or (c) to the knowledge of INTERLAN and the Principals, any federal,
state, local or foreign judgment, writ, decree, order, statute, rule or
regulation applicable to INTERLAN or the Principals, or their respective assets
or properties, in each case, such that the conflict, termination, breach,
acceleration or amendment would have a Material Adverse Effect.

         3.6 LITIGATION. There is no action, proceeding, claim or investigation
pending against INTERLAN or any Principal before any federal, state, municipal,
foreign or other court or administrative agency, department, board or
instrumentality that, if concluded adversely to INTERLAN or a Principal, would
have a Material Adverse Effect, and, to the best of INTERLAN's and the
Principals' knowledge, no such action, proceeding, claim or investigation has
been threatened. There is, to the best of INTERLAN's and the Principals'
knowledge, no reasonable basis for any stockholder or former stockholder of
INTERLAN, or any other person, firm, corporation or entity, to assert a claim
against INTERLAN, any Principal or NESI based upon: (a) ownership or rights to
ownership of any shares of INTERLAN Common Stock, (b) any rights as or to become
a holder of securities of INTERLAN, including any option or preemptive rights or
rights to notice or to vote, or (c) any rights under any agreement among
INTERLAN and any of its stockholders or former stockholders or option holders or
former option holders.

         3.7 TAXES. For purposes of this Section 3.7, the terms "tax" and
"taxes" include all federal, state, local and foreign income, gains, franchise,
excise, property, sales, use, employment, license, payroll, occupation,
recording, value-added or transfer taxes, governmental charges, fees, levies or
assessments (whether payable directly or by withholding), and, with respect to
such taxes, any estimated taxes, interest, penalties, additions to tax and
interest on any such penalties and additions to tax. For purposes of this
Section 3.7, the terms "Return" and "Returns" include all federal, state, local
and foreign tax returns, estimates, information statements and reports required
to be filed by INTERLAN with respect to its income, assets or operations.

                  3.7.1 INTERLAN has or will have filed all Returns for tax
periods ending before the Effective Time, other than where a failure to file a
return did not or would not have a Material

                                      -5-
<PAGE>   6
Adverse Effect. All such Returns that have been filed were (as filed or after
timely amendment) true, correct and complete in all material respects.

                  3.7.2 INTERLAN has paid or deposited in full all taxes due and
owing or shown to be due on the Returns filed by INTERLAN (including required
estimated tax payments with respect thereto), except where a failure to pay a
tax in full did not or would not have a Material Adverse Effect. INTERLAN has
established a proper and adequate accrual or reserve on the INTERLAN Financial
Statements (as defined below) for all taxes not yet due and owing, whether or
not shown or required to be shown on any Return, except where a failure to
establish such an accrual or reserve did not or would not have a Material
Adverse Effect.

                  3.7.3 Neither INTERLAN nor any of the Principals is aware of
any pending or threatened claim or assessment in writing with respect to any
deficiencies for any tax against INTERLAN by any taxing authority. INTERLAN has
not executed any waiver of any statute of limitations relating to taxes or any
extension of the period for the assessment or collection of any tax (other than
extensions which have expired by the Effective Time). Neither INTERLAN nor any
of the Principals has received any written notification, or is otherwise aware,
that any material issues are currently under audit, examination or review by any
taxing authority regarding INTERLAN.

                  3.7.4 There are no material liens, pledges, charges, claims,
security interests or other encumbrances covering the assets of INTERLAN or the
Principals and relating or attributable to taxes, other than for taxes not yet
due and payable and others that do not have a Material Adverse Effect.

         3.8 FINANCIAL STATEMENTS. INTERLAN has delivered to NESI, INTERLAN's
balance sheet and income statement for the year ending December 31, 1999 as well
as its balance sheet and income statement for the period ending July 31, 2000
(collectively, the "INTERLAN Financial Statements"). The INTERLAN Financial
Statements (a) are in accordance with the books and records of INTERLAN, (b)
fairly present the financial condition of INTERLAN at the dates therein
indicated and the results of operations for the periods therein specified, and
(c) have been prepared in accordance with generally accepted accounting
principles applied on a consistent basis, subject, in the case of the INTERLAN
Financial Statements, to normal recurring year-end adjustments and the absence
of any notes thereto. INTERLAN does not have any debt, liability or obligation
of any nature, whether accrued, absolute, contingent or otherwise, and whether
due or to become due, that is not reflected or reserved against or disclosed in
the INTERLAN Financial Statements, except for those that may have been incurred
after the date of the INTERLAN Financial Statements in the ordinary course of
its business, consistent with past practice and that are not material in amount
either individually or collectively.

         3.9 TITLE TO PROPERTIES. INTERLAN has good and marketable title to all
of its tangible assets as shown on the INTERLAN Financial Statements Balance
Sheet, free and clear of all liens, charges, restrictions or encumbrances, other
than for taxes not yet due and payable and others that do not have a Material
Adverse Effect. All machinery and equipment included in such properties is in

                                      -6-
<PAGE>   7
good condition and repair, normal wear and tear excepted, and all leases of real
or personal property to which INTERLAN is a party are fully effective. To the
knowledge of INTERLAN and each of the Principals, INTERLAN is not in violation
of any zoning, building, safety or environmental ordinance, regulation or
requirement or other law or regulation applicable to the operation of owned or
leased properties (the violation of which would have a Material Adverse Effect),
or has received any notice of such violation with which it has not complied or
had waived.

         3.10 ABSENCE OF CERTAIN CHANGES. Except as set forth on Schedule 3.10,
since July 31, 2000 other than actions required by this Agreement (including,
without limitation, the incurrence of legal and accounting fees and expenses in
connection therewith), there has not been with respect to INTERLAN:

                  (a) any change in the financial condition, properties, assets,
liabilities, business or operations of INTERLAN which change by itself or in
conjunction with all other such changes, whether or not arising in the ordinary
course of business, has had or, to the knowledge of INTERLAN and the Principals,
will have a Material Adverse Effect;

                  (b) any contingent liability incurred by INTERLAN as
guarantor, surety or otherwise with respect to the obligations of others, which
contingent liability is in excess of $10,000 individually or $25,000 in the
aggregate;

                  (c) any mortgage, encumbrance or lien placed on any of the
properties of INTERLAN, which mortgage, encumbrance or lien is in excess of
$10,000 individually or $25,000 in the aggregate;

                  (d) any obligation or liability incurred thereby other than
obligations and liabilities incurred in the ordinary course of business, which
obligation or liability is in excess of $10,000 individually or $25,000 in the
aggregate;

                  (e) any purchase or sale or other disposition, or any
agreement or other arrangement for the purchase, sale or other disposition,
other than in the ordinary course, of any of the properties or assets of
INTERLAN, which purchase, sale, other disposition or other arrangement is in
excess of $10,000 individually or $25,000 in the aggregate;

                  (f) any damage, destruction or loss, whether or not covered by
insurance, which has a Material Adverse Effect;

                  (g) any declaration, setting aside or payment of any dividend
on, or the making of any other distribution in respect of, the capital stock of
INTERLAN, any split, combination or recapitalization of the capital stock of
INTERLAN or any direct or indirect redemption, purchase or other acquisition of
the capital stock of INTERLAN;

                                      -7-
<PAGE>   8
                  (h) any labor dispute or claim of unfair labor practices or,
other than changes in the ordinary course of business, consistent with past
practice, any change in the compensation payable or to become payable to
INTERLAN's officers, employees or agents, any bonus payment or arrangement made
to or with any of such officers, employees or agents or any employee
terminations or resignations;

                  (i) any declaration or payment of an extraordinary dividend,
within the meaning of Section 1059(c) of the Code;

                  (j) any payment or discharge of a lien or liability thereof
which lien was not either shown on the INTERLAN Financial Statements or incurred
in the ordinary course of business thereafter; or

                  (k) any material transaction with any of its officers,
directors, employees or stockholders or any entity controlled by any of such
individuals.

         3.11 MATERIAL AGREEMENTS, CONTRACTS AND COMMITMENTS. Except as set
forth on Schedule 3.11 of the INTERLAN Schedule of Exceptions and other than
this Agreement and the INTERLAN Ancillary Agreements, neither INTERLAN nor any
Principal is on the date hereof a party or subject to any oral or written
contracts, obligations, commitments, plans, leases, instruments, arrangements or
licenses which are material to the business of INTERLAN (each a "Material
Agreement"), including, but not limited to any:

                  (a) Contract, commitment, letter contract or purchase order
providing for payments by or to INTERLAN in an aggregate amount of (1) $25,000
or more in the ordinary course of business to any one vendor or customer; or (2)
$10,000 or more not in the ordinary course of business to any one vendor or
customer;

                  (b) License agreement as licensor or licensee with annual fees
in excess of $25,000;

                  (c) Consulting, development or similar agreement under which
INTERLAN currently provides or will provide any custom software development,
training, documentation, personnel placements, advice, consulting services or
other products or services to a customer of INTERLAN (collectively, the "Current
Service Agreements");

                  (d) Contract for the current or future sale, provision or
manufacture of products (including computer software), material or supplies from
INTERLAN or in which INTERLAN has granted or received distribution rights, most
favored customer pricing provisions or exclusive marketing rights relating to
any product or services, group of products or services or territory
(collectively, "Current Sales Agreements," together with the Current Service
Agreements, the "Customer Agreements");

                                      -8-
<PAGE>   9
                  (e) Contract or commitment for the employment of any officer,
employee or consultant of INTERLAN or any other type of contract or
understanding with any officer, employee or consultant of INTERLAN which is not
immediately terminable by INTERLAN without cost or other liability;

                  (f) Agreement for the lease of real or personal property
involving annual payments by or to INTERLAN in an amount of $25,000 or more;

                  (g) Joint venture contract or arrangement or any other
agreement that involves a sharing of profits with other persons;

                  (h) Written dealer, distributor, sales representative,
original equipment manufacturer, value added remarketer or other agreement for
the ongoing distribution of any products or services of INTERLAN;

                  (i) Instrument evidencing or related in any way to
indebtedness for borrowed money by way of direct loan, sale of debt securities,
purchase money obligation, conditional sale, guarantee, or otherwise, except for
trade indebtedness incurred in the ordinary course of business, and except as
disclosed in the INTERLAN Financial Statements;

                  (j) Stock redemption or purchase agreement yet to be
performed.

                  All Material Agreements constitute valid and enforceable
obligations of the parties thereto (except as to the effect, if any, of (i)
applicable bankruptcy and other similar laws affecting the rights of creditors
generally, (ii) rules of law governing specific performance, injunctive relief
and other equitable remedies, and (iii) the enforceability of provisions
requiring indemnification in connection with the offering, issuance or sale of
securities), and are and will, immediately after the Effective Time, be in full
force and effect. Neither INTERLAN nor the Principals is, nor, to the best
knowledge of INTERLAN and the Principals, is any other party thereto, in breach
or default in any material respect under the terms of any such Material
Agreement. Neither INTERLAN nor the Principals is a party to any contract,
agreement or arrangement which has had, or could reasonably be expected to have,
a Material Adverse Effect. INTERLAN has no material liability for renegotiation
of government contracts or subcontracts, if any.

         3.12 COMPLIANCE WITH LAWS. INTERLAN has complied, or prior to the
Closing Date will have complied, and is or will be at the Closing Date in full
compliance, in all material respects, with all applicable laws, ordinances and
regulations, and rules, and all orders, writs, injunctions, awards, judgments
and decrees, applicable to it or to its assets, properties, and business (the
violation of which would have a Material Adverse Effect). INTERLAN has received
all permits and approvals from, and has made all filings with, third parties,
including government agencies and authorities, that are necessary in connection
with its present business and which, if not received or filed, would have a
Material Adverse Effect. There are no legal or administrative proceedings or
investigations

                                      -9-
<PAGE>   10
pending or threatened, that, if enacted or determined adversely to INTERLAN or
any Principal, would result in any Material Adverse Effect.

         3.13 CERTAIN TRANSACTIONS AND AGREEMENTS. None of the executive
officers, directors or affiliates (as that term is defined in Rule 405 under the
Securities Act) of INTERLAN (each, a "Insider") nor any member of their
immediate families is or has been directly or indirectly interested in any
contract or informal arrangement with INTERLAN within the last three years,
except for compensation as an officer, director or employee of INTERLAN. None of
the Insiders nor any member of their immediate families has any interest in any
property, real or personal, tangible or intangible, including inventions,
patents, copyrights, trademarks or trade names or trade secrets, used in or
pertaining to the business of INTERLAN, except for the normal rights of a
stockholder.

         3.14     EMPLOYEES, ERISA AND OTHER COMPLIANCE.

                  3.14.1 INTERLAN has complied with all applicable agreements,
laws, rules and regulations relating to the employment of labor, including those
related to wages, hours and payroll taxes. INTERLAN has withheld and remitted to
the proper Governmental Authorities all amounts required by law or agreement to
be withheld from wages or salaries of its employees and is not liable for any
arrearage of wages or any Taxes or penalties for failure to comply with any of
the foregoing. INTERLAN has had no labor troubles in the sense that within the
last twelve (12) months there have been no strikes, work stoppages, slowdowns,
threatened unfair labor practice charges or other material controversies pending
or threatened by any of its employees; and INTERLAN has not entered into any
collective bargaining agreement and no union represents, or in the past twelve
(12) months has demanded or requested to represent or is currently attempting to
represent, any of the employees of INTERLAN. Except as set forth on Schedule
3.11 of the INTERLAN Schedule of Exceptions, INTERLAN has not promulgated any
policy or entered into any agreement relating to the payment of any medical
insurance premium, retirement pay, severance pay, vacation pay or sick leave to
any present or former employees of INTERLAN.

                  3.14.2 All employee profit-sharing, incentive, deferred
compensation, welfare, pension, retirement, group insurance, bonus, severance
and other employee benefit plan, arrangement or agreement (oral or written),
regardless of whether any such plan, arrangement or agreement is an "employee
benefit plan" within the meaning of Section 3(3) of the Employee Retirement
Income Security Act of 1974, as amended ("ERISA"), maintained or previously
maintained or contributed to or previously contributed to by INTERLAN for the
benefit of current or former personnel ("Employee Plans"), by their terms and
operation are in material compliance with all applicable laws (including, but
not limited to, ERISA and the Code). There are no actions, suits or claims
pending or threatened (other than routine noncontested claims for benefits) or,
to INTERLAN's knowledge, no set of circumstances exist which may reasonably give
rise to such a claim against any Employee Plan or administrator or fiduciary of
any such Employee Plan.

                  3.14.3 To the knowledge of INTERLAN and the Principals and
except for matters which would not have a Material Adverse Effect, no employee
of INTERLAN is in violation of any

                                      -10-
<PAGE>   11
term of any employment contract, patent disclosure agreement, noncompetition
agreement, or any other contract or written agreement, or any restrictive
covenant contained in any such agreement relating to the right of any such
employee to be employed thereby, or to use trade secrets or proprietary
information of others, and the employment of such employees does not subject
INTERLAN to any material liability.

         3.15 DISCLOSURE. To the knowledge of INTERLAN and the Principals,
neither this Agreement, its exhibits and schedules, nor any of the certificates
or documents to be delivered by INTERLAN or the Principals to NESI under this
Agreement, taken together, contains any untrue statement of a material fact or
omits to state any material fact necessary in order to make the statements
contained herein and therein, in light of the circumstances under which such
statements were made, not misleading.

         3.16 INSURANCE. INTERLAN maintains and at all times during the prior
three years has maintained fire and casualty, general liability, business
interruption and product liability insurance which it believes to be reasonably
prudent for similarly sized and similarly situated businesses.

         3.17 ENVIRONMENTAL MATTERS. To the best of INTERLAN's and Principal's
knowledge, during the period that INTERLAN has leased or owned its properties or
owned or operated any facilities, there have been no disposals or releases of
Hazardous Materials (as defined below) by INTERLAN, or to INTERLAN's and the
Principals' knowledge, by others, on, from or under such properties or
facilities, the liability for which would have a Material Adverse Effect.
INTERLAN and the Principals have no knowledge of any presence, generation,
manufacturing, disposals or releases of Hazardous Materials on, from or under
any of such properties or facilities, which may have occurred prior to INTERLAN
having taken possession of any of such properties or facilities, the liability
for which would have a Material Adverse Effect. For the purposes of this
Agreement, the terms "disposal" and "release" shall have the definitions
assigned thereto by the Comprehensive Environmental Response, Compensation and
Liability Act of 1980, 42 U.S.C. Section 9601 et seq., as amended ("CERCLA").
For the purposes of this Agreement, "Hazardous Materials" shall mean any
hazardous or toxic substance, material or waste which is or becomes prior to the
Closing Date regulated under, or defined as a "hazardous substance,"
"pollutant," "contaminant," "toxic chemical," "hazardous material," "toxic
substance" or "hazardous chemical" under (i) CERCLA; (ii) the Emergency Planning
and Community Right-to-Know Act, 42 U.S.C. Section 1801 et seq.; (iii) the Toxic
Substance Control Act, 15 U.S.C. Section 2601 et seq.; (iv) the Occupational
Safety and Health Act of 1970, 29 U.S.C. Section 651 et seq.; (v) any applicable
federal, state or local statute or ordinance that has a scope or purpose similar
to those identified above; or (vi) regulations promulgated under any of the laws
or statutes identified above.

         3.19 BOOKS AND RECORDS. The books, records and accounts of INTERLAN (a)
are in all material respects true, complete and correct, (b) have been
maintained in accordance with good business practices on a basis consistent with
prior years, (c) are stated in reasonable detail and accurately and fairly
reflect the material transactions and dispositions of the assets of INTERLAN,
and (d) accurately and fairly reflect the basis for the INTERLAN Financial
Statements.

                                      -11-
<PAGE>   12
4.       REPRESENTATIONS AND WARRANTIES OF NESI AND MERGER SUB

         NESI and Merger Sub hereby jointly and severally represent and warrant
as follows:

         4.1.1 ORGANIZATION, GOOD STANDING AND QUALIFICATION. NESI is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Nevada and has the corporate power and authority to own, operate
and lease its properties and to carry on its business as now conducted and as
proposed to be conducted. Merger Sub is a corporation duly organized, validly
existing and in good standing under the laws of the State of Virginia and has
the corporate power and authority to own, operate and lease its properties and
carry on its business as now conducted and as proposed to be conducted. Merger
Sub was formed on October 17, 2000 and has conducted no business or operations
prior to the date hereof. NESI is qualified to do business as a foreign
corporation in each jurisdiction where failure to be so qualified could
reasonably be expected to have a material adverse effect on the business,
operations, financial condition or prospects of NESI and its subsidiaries taken
as a whole (for purposes of this Sections 4 and 6, a "Material Adverse Effect").

         4.2      POWER, AUTHORIZATION AND VALIDITY.

                  4.2.1 Each of NESI and Merger Sub has the corporate right,
power, legal capacity and authority to enter into and perform his or its
respective obligations under this Agreement, and all agreements to which NESI
and Merger Sub are or will be a party that are required to be executed pursuant
to this Agreement (the "NESI Ancillary Agreements"). The execution, delivery and
performance of this Agreement and the NESI Ancillary Agreements have been duly
and validly approved and authorized by all necessary corporate action on the
part of each of NESI and Merger Sub.

                  4.2.2 No filing, authorization or approval, governmental or
otherwise, is necessary to enable either of NESI or Merger Sub to enter into,
and to perform his or its respective obligations under, this Agreement and the
NESI Ancillary Agreements, except for (a) the filing of the Certificate of
Merger with the State Corporation Commission of the State of Virginia, (b) the
filing of appropriate documents with the relevant authorities of other states in
which NESI is qualified to do business, if any, and (c) such filings as may be
required to comply with federal and state securities laws.

                  4.2.3 This Agreement and the NESI Ancillary Agreements are, or
when executed by NESI and Merger Sub, as applicable, will be, valid and binding
obligations of both of NESI and Merger Sub, as applicable, enforceable in
accordance with their respective terms, except as to the effect, if any, of (a)
applicable bankruptcy and other similar laws affecting the rights of creditors
generally, (b) rules of law governing specific performance, injunctive relief
and other equitable remedies, and (c) the enforceability of provisions requiring
indemnification in connection with the

                                      -12-
<PAGE>   13
offering, issuance or sale of securities; provided, however, that the
Certificate of Merger will not be effective until the Effective Time.

         4.3 CAPITALIZATION. The capitalization of NESI and Merger Sub consist
of the following:

                  4.3.1 NESI CAPITAL STOCK. A total of 100,000,000 authorized
shares of Common Stock, $0.001 par value per share (the "Common Stock"), of
which 9,989,171 shares are outstanding as of the date of this Agreement. All
issued and outstanding shares of NESI capital stock have been duly authorized
and validly issued, are fully paid and nonassessable, and have been offered,
issued, sold and delivered by NESI in compliance with all registration or
qualification requirements (or applicable exemptions therefrom) of applicable
federal and state securities laws.

                  4.3.2 MERGER SUB. A total of Two Thousand (2,000) authorized
shares of Common Stock $1.00 par value per share for Merger Sub, Two Thousand
(2,000) of which are validly issued, outstanding, fully paid and nonassessable.

         4.4 NO VIOLATION OF EXISTING AGREEMENTS. Neither the execution and
delivery of this Agreement or any NESI Ancillary Agreement, nor the consummation
of the transactions contemplated hereby or thereby, will conflict with, or (with
or without notice or lapse of time, or both) result in a termination, breach,
impairment or violation of, or cause an acceleration or amendment of any
obligation under, (a) any provision of the Articles or Certificate of
Incorporation or Bylaws of NESI and Merger Sub, as currently in effect, (b) in
any material respect, any material instrument or contract to which NESI and
Merger Sub is a party or by which any of their assets or properties are bound,
or (c) any federal, state, local or foreign judgment, writ, decree, order,
statute, rule or regulation applicable to NESI and Merger Sub or their assets or
properties, in each case, such that the conflict, termination, breach,
acceleration or amendment would have a Material Adverse Effect.

         4.5 FINANCIAL STATEMENTS. NESI's report to the Securities and Exchange
Commission on form 10-QSB for the period ending June 30, 2000 has attached to it
(a) an unaudited balance sheet of NESI as of June 30, 2000 and income statement
and statement of cash flows for the 6-month period then ended, which are
collectively referred to herein as the "NESI Financial Statements"). The NESI
Financial Statements (a) are in accordance with the books and records of NESI,
(b) fairly present the financial condition of NESI at the dates therein
indicated and the results of operations for the periods therein specified, and
(c) have been prepared in accordance with generally accepted accounting
principles applied on a consistent basis. NESI has no debt, liability or
obligation of any nature, whether accrued, absolute, contingent or otherwise,
and whether due or to become due, that is not reflected or reserved against or
disclosed in the NESI Financial Statements, except for those that may have been
incurred after the date of the NESI Financial Statements in the ordinary course
of its business, consistent with past practice and that are not material in
amount either individually or collectively.

                                      -13-
<PAGE>   14
         4.6 COMPLIANCE WITH LAWS. NESI and Merger Sub have complied, or prior
to the Closing Date will have complied, and are or will be at the Closing Date
in full compliance, in all material respects, with all applicable laws,
ordinances and regulations, and rules, and all orders, writs, injunctions,
awards, judgments and decrees, applicable to it or to its assets, properties,
and business (the violation of which would have a Material Adverse Effect),
including, without limitation: (a) all applicable federal and state securities
laws and regulations, (b) all applicable federal, state and local laws,
ordinances and regulations, and all orders, writs, injunctions, awards,
judgments and decrees, pertaining to (i) the sale, licensing, leasing, ownership
or management of NESI's owned, leased or licensed real or personal property,
products and technical data, and (ii) employment and employment practices, terms
and conditions of employment, and wages and hours, (c) the Export Administration
Act and regulations promulgated thereunder and all other laws, regulations,
rules, orders, writs, injunctions, judgments and decrees applicable to the
export or re-export of controlled commodities or technical data and (d) the
Immigration Reform and Control Act. NESI has received all permits and approvals
from, and has made all filings with, third parties, including government
agencies and authorities, that are necessary in connection with its present
business and which, if not received or filed, would have a Material Adverse
Effect. There are no legal or administrative proceedings or investigations
pending or threatened, that, if enacted or determined adversely to NESI, would
result in any Material Adverse Effect.

         4.7 GOVERNMENTAL CONSENTS. No consent, approval, order or authorization
of, or registration, qualification, designation, declaration or filing with, any
federal, state or local governmental authority on the part of NESI or Merger Sub
is required in connection with the consummation of the transactions contemplated
by this Agreement, except for such qualifications or filings under the
Securities Act and the regulations thereunder and all other applicable
securities laws as may be required in connection with the transactions
contemplated by this Agreement. All such qualifications and filings will, in the
case of qualifications, be effective on the Closing and will, in the case of
filings, be made within the time prescribed by law.

         4.8 SHARES ISSUED IN MERGER. The NESI Common Stock to be issued to the
stockholders of INTERLAN in the Merger, when issued by NESI pursuant to the
terms of this Agreement, will be duly authorized, validly issued, fully paid and
nonassessable, free and clear of all liens, claims, pledges, options, adverse
claims, assessments or charges of any nature whatsoever, and will have been
issued materially in compliance with all registration or qualification
requirements (or applicable exemptions therefrom) of applicable federal and
state securities laws.

         4.9 BOOKS AND RECORDS. The books, records and accounts of NESI and
Merger Sub (a) are in all material respects true, complete and correct, (b) have
been maintained in accordance with good business practices on a basis consistent
with prior years, (c) are stated in reasonable detail and accurately and fairly
reflect the material transactions and dispositions of the assets of NESI and
Merger Sub, as applicable, and (d) accurately and fairly reflect the basis for
the NESI Financial Statements.

         4.10 CONTROL OF MERGER SUB. At all times prior to and as of the
Effective Time, NESI will be in "control" of Merger Sub, as such term is defined
in Section 368(c) of the Code.

                                      -14-
<PAGE>   15
         4.11 INTERLAN FUNDING COMMITMENT. NESI agrees to provide Interlan with
$150,000 in capital funding ("funding commitment") for Interlan's future
expansion. The Funding Commitment will be delivered to Interlan in six equal
monthly installments of $25,000 per month, commencing on November 1, 2000.

5.       INTERLAN PRECLOSING COVENANTS

         During the period from the date of this Agreement until the earlier of
the Effective Time or the termination of this Agreement pursuant to Section 10
hereof, each of INTERLAN and the Principals covenants and agrees as follows:

         5.1 ADVICE OF CHANGES. INTERLAN will, and the Principals will cause
INTERLAN to, promptly advise NESI in writing (a) of any event occurring
subsequent to the date of this Agreement that would render any representation or
warranty of INTERLAN or the Principals contained in this Agreement, if made on
or as of the date of such event or the Closing Date, untrue or inaccurate in any
material respect and (b) of any change in the business, results of operations or
financial condition of INTERLAN that could reasonably be expected to have a
Material Adverse Effect.

         5.2 CONDUCT OF BUSINESS. INTERLAN will, and the Principals will cause
INTERLAN to, continue to conduct its business and use commercially reasonable
efforts to maintain its business relationships in the ordinary and usual course
and will not, and each of the Principals will cause INTERLAN not to, without the
prior written consent of NESI (other than actions required by this Agreement, as
required by law or in connection with the performance of agreements disclosed in
the INTERLAN Schedule of Exceptions):

                  (a) borrow any money;

                  (b) enter into any transaction not in the ordinary course of
business or which involves an expense or capital commitment by INTERLAN in
excess of $10,000, or which obligates INTERLAN for a period exceeding six (6)
months;

                  (c) encumber or permit to be encumbered any of its assets or
grant liens therein;

                  (d) dispose of any portion of any of the assets of INTERLAN
with a value exceeding $5,000 (other than in the ordinary course of business);

                  (e) enter into any lease or contract for the purchase or sale
of any property, real or personal, except in the ordinary course of business;

                                      -15-
<PAGE>   16
                  (f) fail to maintain any of the equipment and other assets of
INTERLAN in good working condition and repair according to the standards
INTERLAN has maintained to the date of this Agreement, subject only to ordinary
wear and tear;

                  (g) pay any bonus, royalty, increased salary or special
remuneration to any officer, employee or consultant or agree to same or enter
into any new employment, severance, "golden parachute" or consulting agreement
with any such person;

                  (h) change accounting methods;

                  (i) declare, set aside or pay any cash or stock dividend or
other distribution in respect of capital stock, or redeem or otherwise acquire
any of its capital stock;

                  (j) amend or terminate any contract, agreement or license to
which INTERLAN is a party except those amended or terminated in the ordinary
course of business consistent with past practice, and which are not material in
amount or effect;

                  (k) lend any amount to any person or entity, other than
advances for travel and expenses which are incurred in the ordinary course of
business consistent with past practice;

                  (l) guarantee or act as a surety for any obligation except for
the endorsement of checks and other negotiable instruments in the ordinary
course of business consistent with past practice;

                  (m) waive or release any material right or claim except in the
ordinary course of business consistent with past practice;

                  (n) split or combine the outstanding shares of its capital
stock of any class or enter into any recapitalization affecting the number of
outstanding shares of its capital stock of any class or affecting any other of
its securities;

                  (o) merge, consolidate or reorganize with, or acquire any
entity;

                  (p) amend its Certificate of Incorporation or Bylaws;

                  (q) issue or sell any shares of its capital stock of any
class;

                  (r) license any of its technology or intellectual property
except in the ordinary course of business consistent with past practice;

                  (s) agree to any audit assessment by any tax authority (unless
the amount thereof is not material or has been adequately accrued or reserved on
the INTERLAN Financial Statements) or file any federal or state income or
franchise tax return unless (i) the amount payable with respect

                                      -16-
<PAGE>   17
thereto is not material or has been adequately accrued or reserved on the
INTERLAN Financial Statements or (ii) copies of such returns have been delivered
to NESI for its review and approved by NESI prior to filing;

                  (t) change any insurance coverage or issue any certificates of
insurance except as is routinely done in the ordinary course of business of
INTERLAN;

                  (u) hire any employee or consultant;

                  (v) adopt or amend any employee benefit plan;

                  (w) enter into any contracts for the sale of advertising in an
amount exceeding $10,000 or for longer than thirty (30) days; or

                  (x) agree to do any of the things described in the preceding
clauses 5.2(a) through (w).

         5.3 REGULATORY APPROVALS. INTERLAN will, and the Principals will cause
INTERLAN to, execute and file, or join in the execution and filing, of any
application or other document that may be required to be filed by it in order to
obtain the authorization, approval or consent of any governmental body (federal,
state, local or foreign) which may be reasonably required, in connection with
the consummation of the transactions contemplated by this Agreement. INTERLAN
will, and the Principals will cause INTERLAN to, use its best efforts to obtain
all such authorizations, approvals and consents.

         5.4 NECESSARY CONSENTS. INTERLAN will, and the Principals shall cause
INTERLAN to, use commercially reasonable efforts to obtain such written consents
and take such other actions as may be necessary or appropriate in addition to
those set forth in Section 5.3 to allow the consummation of the transactions
contemplated hereby and to allow NESI to carry on INTERLAN's business after the
Closing.

         5.5 LITIGATION. INTERLAN and the Principals will notify NESI in writing
promptly after learning of any actions, suits, proceedings or investigations by
or before any court, board or governmental agency, initiated by or against
INTERLAN, or known by INTERLAN or the Principals to be threatened against
INTERLAN.

         5.6 NO OTHER NEGOTIATIONS. From the date hereof until the earlier of
the termination of this Agreement or consummation of the Merger, INTERLAN will
not, and the Principals will not permit INTERLAN to, and will not authorize any
officer or director of INTERLAN or any other person on its behalf to, directly
or indirectly, solicit, encourage, negotiate or accept any offer from any party
concerning the possible disposition of all or any substantial portion of
INTERLAN's business, assets or capital stock by merger, sale or any other means
or any other transaction that would involve a change in control of INTERLAN, or
any transaction in which INTERLAN

                                      -17-
<PAGE>   18
contemplates issuing equity or debt securities. INTERLAN and the Principals will
promptly notify NESI in writing of any third party inquiries or proposals.

         5.7 SATISFACTION OF CONDITIONS PRECEDENT. INTERLAN and each of the
Principals will use its, his or her commercially reasonable efforts to satisfy
or cause to be satisfied all the conditions precedent which are set forth in
Section 9, and each such person will use its, his or her commercially reasonable
efforts to cause the transactions contemplated by this Agreement to be
consummated, and, without limiting the generality of the foregoing, to obtain
all consents and authorizations of third parties and to make all filings with,
and give all notices to, third parties that may be necessary or reasonably
required on their part in order to effect the transactions contemplated hereby.
INTERLAN and the Principals will promptly notify NESI in writing of any failure
or inability to comply fully with this Section.

6.       NESI PRECLOSING COVENANTS

         During the period from the date of this Agreement until the earlier of
the Effective Time or the termination of this Agreement pursuant to Section 10
hereof, NESI and Merger Sub covenant and agree as follows:

         6.1 REGULATORY APPROVALS. NESI and Merger Sub will execute and file, or
join in the execution and filing, of any application or other document that may
be necessary in order to obtain the authorization, approval or consent of any
governmental body, federal, state, local or foreign, which may be reasonably
required, in connection with the consummation of the transactions contemplated
by this Agreement. NESI will use its best efforts to obtain all such
authorizations, approvals and consents.

         6.2 SATISFACTION OF CONDITIONS PRECEDENT. Each of NESI and Merger Sub
will use its commercially reasonable efforts to satisfy or cause to be satisfied
all the conditions precedent which are set forth in Section 8, and each of NESI
and Merger Sub will use its commercially reasonable efforts to cause the
transactions contemplated by this Agreement to be consummated and, without
limiting the generality of the foregoing, to obtain all consents and
authorizations of third parties and to make all filings with, and give all
notices to, third parties that may be necessary or reasonably required on its
part in order to effect the transactions contemplated hereby.

         6.3 BLUE SKY LAWS. NESI shall take such steps as may be necessary to
comply with the securities and Blue Sky laws of all jurisdictions which are
applicable in connection with the Merger.

                                      -18-
<PAGE>   19
7.       CLOSING MATTERS

         7.1 THE CLOSING. Subject to termination of this Agreement as provided
in Section 10 below, the Closing will be facilitated at the offices of G. David
Gordon & Associates, P.C., Tulsa, Oklahoma, on or before October 31, 2000, or,
if all conditions to closing have not been satisfied or waived by such date,
such other place, time and date as INTERLAN and NESI may mutually select (the
"Closing Date"). Concurrently with the Closing, the Certificate of Merger will
be filed in the office of the State Corporation Commission of the State of
Virginia.

         7.2      EXCHANGE OF CERTIFICATES.

                  7.2.1 As of the Effective Time, all shares of INTERLAN Common
Stock that are outstanding immediately prior thereto will, by virtue of the
Merger and without further action, cease to exist and will be converted into the
right to receive from NESI the number of shares of NESI Common Stock, cash New
Interest Bearing Promissory Note (collectively referred to "Purchase Price")
determined as set forth in Section 2.1, subject to Section 2.2.

                  7.2.2 At the Effective Time, each holder of shares of INTERLAN
Common Stock will surrender the certificate(s) for such shares (the
"Certificates"), duly endorsed as requested by NESI or accompanied by stock
powers in a form acceptable to NESI, to NESI for cancellation. At the Effective
Time and upon receipt of such Certificates, NESI will deliver the Purchase Price
to which such holder is entitled pursuant to Section 2.

                  7.2.3 All NESI Common Stock delivered upon the surrender of
INTERLAN Common Stock in accordance with the terms hereof will be deemed to have
been delivered in full satisfaction of all rights pertaining to such INTERLAN
Common Stock. There will be no further registration of transfers on the stock
transfer books of INTERLAN or the transfer agent of such INTERLAN Common Stock.
If, after the Effective Time, Certificates are presented for any reason, they
will be canceled and exchanged as provided in this Section.

8.       CONDITIONS TO OBLIGATIONS OF INTERLAN AND THE PRINCIPALS

         INTERLAN's and the Principals' obligations hereunder are subject to the
fulfillment or satisfaction, on and as of the Closing, of each of the following
conditions (any one or more of which may be waived by INTERLAN and the
Principals, but only in a writing signed by INTERLAN and the Principals):

         8.1 ACCURACY OF REPRESENTATIONS AND WARRANTIES. The representations and
warranties of NESI and Merger Sub set forth in Section 4 that are not made as of
a specific date shall be true and accurate in all material respects on and as of
the date of this Agreement.

                                      -19-
<PAGE>   20
         8.2 COVENANTS. Each of NESI and Merger Sub shall have performed and
complied in all material respects with all of its covenants contained in Section
6 on or before the Closing, and INTERLAN shall receive a certificate to such
effect signed by NESI's Chief Executive Officer.

         8.3 COMPLIANCE WITH LAW. There shall be no order, decree, or ruling by
any court or governmental agency or threat thereof, or any other fact or
circumstance, which would prohibit or render illegal the transactions
contemplated by this Agreement.

         8.4 GOVERNMENT CONSENTS. There shall have been obtained at or prior to
the Closing Date such permits or authorizations, and there shall have been taken
such other action, as may be required to consummate the Merger by any regulatory
authority having jurisdiction over the parties and the actions herein proposed
to be taken, including but not limited to, requirements under applicable federal
and state securities laws.

         8.5 REQUISITE APPROVALS. The principal terms of this Agreement and the
Certificate of Merger shall have been approved and adopted by NESI as holders of
all of the issued and outstanding shares of the capital stock of Merger Sub.

         8.6 EMPLOYMENT AGREEMENT. NESI shall have executed and delivered an
employment agreement with G. Anthony Munno in the form of Exhibit 8.6 (the
"Employment Agreement").

         8.7 INTERLAN EMPLOYMENT CONTRACTS. NESI shall have given written
approval to all employment contracts between Interlan and Martin Carter, Brian
Ianniello, Lisa Poretsky, Mark Lacey, James Jacob and David Rothier.

         8.8 LINE OF CREDIT. In the event United Bank bank has not agreed to
release the principals as guarantors on Interlan's Credit Line, then the Credit
Line shall be paid off by NESI.

9.       CONDITIONS TO OBLIGATIONS OF NESI AND MERGER SUB

         The obligations of NESI and Merger Sub hereunder are subject to the
fulfillment or satisfaction on, and as of the Closing, of each of the following
conditions (any one or more of which may be waived by NESI, but only in a
writing signed by NESI):

         9.1 ACCURACY OF REPRESENTATIONS AND WARRANTIES. The representations and
warranties of INTERLAN and the Principals set forth in Section 3 that are not
made as of a specific date shall be true and accurate in all material respects
on and as of the date of this Agreement.

         9.2 COVENANTS. INTERLAN and the Principals shall have performed and
complied in all material respects with all of its covenants contained in Section
5 on or before the Closing, and NESI shall receive certificates to such effect
executed by the Chief Executive Officer and Chief Financial Officer of INTERLAN
and by the Principals.

                                      -20-
<PAGE>   21
         9.3 COMPLIANCE WITH LAW. There shall be no order, decree, or ruling by
any court or governmental agency or threat thereof, or any other fact or
circumstance, which would prohibit or render illegal the transactions
contemplated by this Agreement.

         9.4 GOVERNMENT CONSENTS. There shall have been obtained at or prior to
the Closing Date such permits or authorizations, and there shall have been taken
such other action, as may be required to consummate the Merger by any regulatory
authority having jurisdiction over the parties and the actions herein proposed
to be taken, including but not limited to, requirements under applicable federal
and state securities laws.

         9.5 CONSENTS. INTERLAN shall have received duly executed copies of all
material third party consents, approvals, assignments, waivers, authorizations
or other certificates contemplated by this Agreement or reasonably deemed
necessary by NESI's counsel to provide for the continuation in full force and
effect of any and all material contracts and leases of INTERLAN (including
without limitation, the consents as to Material Contracts hereto and the
Customer Agreements) and for INTERLAN and the Principals to consummate the
transactions contemplated hereby in form and substance reasonably satisfactory
to NESI, except for such consents and approvals thereof as NESI and INTERLAN and
the Principals shall have agreed shall not be obtained.

         9.6 NO LITIGATION. No litigation or proceeding shall be overtly
threatened or pending to enjoin or prevent the consummation of any of the
transactions contemplated by this Agreement, or which could be reasonably
expected to have a Material Adverse Effect.

         9.7 REQUISITE APPROVALS. The principal terms of this Agreement and the
Certificate of Merger shall have been approved and adopted by the holders of all
of the INTERLAN Common Stock outstanding, and by a majority of the Board of
Directors of INTERLAN.

         9.8 INVESTMENT REPRESENTATION LETTER. NESI shall have received from all
of the holders of INTERLAN Common Stock an executed Investment Representation
Letter substantially in the form of Exhibit 9.8 hereto.

         9.9 ABSENCE OF MATERIAL ADVERSE CHANGES. There shall not have been any
material adverse change in the financial conditions, properties, assets,
liabilities, business, prospectus or results of operations of INTERLAN.

10.      TERMINATION OF AGREEMENT

         10.1 TERMINATION OF AGREEMENT. Either NESI or INTERLAN and the
Principals may terminate this Agreement prior to the Effective Time (whether
before or after stockholder approval has been obtained) solely as provided
below:

                                      -21-
<PAGE>   22
                  10.1.1 NESI may terminate this Agreement by giving written
notice to INTERLAN and the Principals in the event INTERLAN or the Principals is
in breach, and INTERLAN and the Principals may terminate this Agreement by
giving written notice to NESI in the event NESI is in breach, of any material
representation, warranty, or covenant contained in this Agreement, and such
breach is not remedied within ten (10) days of delivery of written notice
thereof;

                  10.1.2 NESI may terminate this Agreement by giving written
notice to INTERLAN and the Principals if the Closing shall not have occurred on
or before November 3, 2000 by reason of the failure of any condition precedent
under Section 9 hereof (unless the failure results primarily for a breach by
NESI of any representation, warranty or covenant contained in this Agreement);
or

                  10.1.3 INTERLAN and the Principals may terminate this
Agreement by giving written notice to NESI if the Closing shall not have
occurred on or before November 3, 2000 by reason of the failure of any condition
precedent under Section 8 hereof (unless the failure results primarily from a
breach by INTERLAN or the Principals of any representation, warranty or covenant
contained in this Agreement made by him or it).

         10.2 NO LIABILITY. Any termination of this Agreement pursuant to this
Section 10 will be without further obligation or liability upon any party in
favor of the other party hereto, other than any liability of any party for
breaches of this Agreement, which will survive termination of this Agreement.
INTERLAN and the Principals on the one hand and NESI on the other will use
commercially reasonable efforts to cause the Merger to be consummated.

11.      SURVIVAL OF REPRESENTATIONS

         11.1 SURVIVAL OF REPRESENTATIONS. All representations, warranties and
covenants of INTERLAN, the Principals, NESI and Merger Sub contained in this
Agreement will survive the Effective Time and remain operative and in full force
and effect, regardless of any investigation made by or on behalf of the parties
to this Agreement, until the earlier of (a) the termination of this Agreement or
(b) three (3) years after the Closing Date, whereupon such representations,
warranties and covenants will expire (except for covenants that by their terms
survive for a longer period); provided, however, that representations,
warranties and covenants involving intentional fraud or willful misconduct shall
survive the Closing without the limitations of subsections (a) or (b) above. The
period of such survival shall be referred to herein as the "Survival Period."

12.      MISCELLANEOUS

         12.1 GOVERNING LAW. The internal laws of the State of Virginia
(irrespective of its conflict of law principles) will govern the validity of
this Agreement, the construction of its terms, and the interpretation and
enforcement of the rights and duties of the parties hereto.

         12.2 ASSIGNMENT; BINDING UPON SUCCESSORS AND ASSIGNS. No party hereto
may assign any of its rights or obligations hereunder without the prior written
consent of the other parties hereto

                                      -22-
<PAGE>   23
and any attempt to do so will be void. This Agreement will be binding upon and
inure to the benefit of the parties hereto and their respective successors and
permitted assigns.

         12.3 SEVERABILITY. If any provision of this Agreement, or the
application thereof, will for any reason and to any extent be invalid or
unenforceable, the remainder of this Agreement and application of such provision
to other persons or circumstances will be interpreted so as reasonably to effect
the intent of the parties hereto. The parties further agree to replace such void
or unenforceable provision of this Agreement with a valid and enforceable
provision that will achieve, to the extent possible, the economic, business and
other purposes of the void or unenforceable provision.

         12.4 COUNTERPARTS. This Agreement may be executed in any number of
counterparts, each of which will be an original as regards any party whose
signature appears thereon and all of which together will constitute one and the
same instrument. This Agreement will become binding when one or more
counterparts hereof, individually or taken together, will bear the signatures of
all parties reflected hereon as signatories. Facsimile copies of such
counterparts are acceptable.

         12.5 OTHER REMEDIES. Except as otherwise provided herein, any and all
remedies herein expressly conferred upon a party will be deemed cumulative with
and not exclusive of any other remedy conferred hereby or by law on such party,
and the exercise of any one remedy will not preclude the exercise of any other.

         12.6 AMENDMENT AND WAIVERS. Any term or provision of this Agreement may
be amended, and the observance of any term of this Agreement may be waived
(either generally or in a particular instance and either retroactively or
prospectively) only by a writing signed by the party to be bound thereby. The
waiver by a party of any breach hereof or default in the performance hereof will
not be deemed to constitute a waiver of any other default or any succeeding
breach or default. The Agreement may be amended by the parties hereto at any
time before or after approval of the shareholders of INTERLAN but, after such
approval, no amendment will be made which by applicable law requires the further
approval of the shareholders of INTERLAN obtaining such further approval.

         12.7 NO WAIVER. The failure of any party to enforce any of the
provisions hereof will not be construed to be a waiver of the right of such
party thereafter to enforce such provisions.

                                      -23-
<PAGE>   24
         12.8 EXPENSES. Each party will bear its respective expenses and fees of
its own accountants, attorneys and other professionals incurred with respect to
this Agreement and the transactions contemplated hereby.

         12.9 ATTORNEYS' FEES. Should suit be brought to enforce or interpret
any part of this Agreement, the prevailing party will be entitled to recover, as
an element of the costs of suit, reasonable attorneys' fees to be fixed by the
court (including without limitation, costs, expenses and fees on any appeal).
The prevailing party will be entitled to recover its costs of suit, regardless
of whether such suit proceeds to final judgment.

         12.10 NOTICES. Any notice or other communication required or permitted
to be given under this Agreement will be in writing, will be delivered
personally, by registered or certified mail, postage prepaid, by confirmed
facsimile or by nationally recognized courier service, and will be deemed given
upon delivery, if delivered personally, or five days after deposit in the mails,
if mailed, or upon receipt if delivered by confirmed facsimile or by nationally
recognized courier service, to the following addresses:

                  (i)      If to NESI:       G. David Gordon & Associates, P.C.
                                             7633 East 63rd Place, Suite 210
                                             Tulsa, Oklahoma 74133
                                             G. David Gordon, Esq.

                  (ii)     If to INTERLAN or the Principals:

                           Attention:        G. Anthony Munno
                                             131 Elden Street, Suite 140
                                             Herndon, Virginia  20170

or to such other address as a party may have furnished to the other parties in
writing pursuant to this Section 12.10.

         12.11 CONSTRUCTION OF AGREEMENT. This Agreement has been negotiated by
the respective parties hereto and their attorneys and the language hereof will
not be construed for or against either party. A reference to a Section or an
exhibit will mean a Section in, or exhibit to, this Agreement unless otherwise
explicitly set forth. The titles and headings herein are for reference purposes
only and will not in any manner limit the construction of this Agreement which
will be considered as a whole.

                                      -24-
<PAGE>   25
         12.12 FURTHER ASSURANCES. Each party agrees to cooperate fully with the
other parties and to execute such further instruments, documents and agreements
and to give such further written assurances as may be reasonably requested by
any other party to evidence and reflect the transactions described herein and
contemplated hereby and to carry into effect the intents and purposes of this
Agreement.

         12.13 ENTIRE AGREEMENT. This Agreement and the exhibits hereto
constitute the entire understanding and agreement of the parties hereto with
respect to the subject matter hereof and supersede all prior and contemporaneous
agreements or understandings, inducements or conditions, express or implied,
written or oral, between the parties. The express terms hereof control and
supersede any course of performance or usage of the trade inconsistent with any
of the terms hereof.

                                      -25-
<PAGE>   26
         IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first above written.

"NESI"                                       "INTERLAN"

NETWORK SYSTEMS                              INTERLAN COMMUNICATIONS, INC.
INTERNATIONAL, INC.

By:_____________________________             By:________________________________
      Herbert Tabin, President                   G. Anthony Munno, President

"MERGER SUB"                                 "PRINCIPALS"

NESI ACQUISITION, CORP.

By:_____________________________             _______________________________
    Herbert Tabin, President                 G. Anthony Munno

                                             _______________________________
                                             Brian Ianniello

                                             _______________________________
                                             Martin Carter

                                      -26-

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