Document:

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                                                                     EXHIBIT 4.4

                      THIS WARRANT HAS NOT BEEN REGISTERED
                        UNDER THE SECURITIES ACT OF 1933
                             AND IS NOT TRANSFERABLE
                            EXCEPT AS PROVIDED HEREIN

                              I-SECTOR CORPORATION

                                PURCHASE WARRANT

                                   Issued to:

                        PAULSON INVESTMENT COMPANY, INC.

                             Exercisable to Purchase

                                  50,000 Units

                                       of

                              I-SECTOR CORPORATION

                          Void after ____________, 2009

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         This is to certify that, for value received and subject to the terms
and conditions set forth below, the Warrantholder (hereinafter defined) is
entitled to purchase, and the Company promises and agrees to sell and issue to
the Warrantholder, at any time on or after ______________, 2005 and on or before
_____________, 2009, up to ____ Units (hereinafter defined) at the Exercise
Price (hereinafter defined).

         This Warrant Certificate is issued subject to the following terms and
conditions:

         1.       Definitions of Certain Terms. Except as may be otherwise
clearly required by the context, the following terms have the following
meanings:

                  (a)      "Act" means the Securities Act of 1933, as amended.

                  (b)      "Cashless Exercise" means an exercise of Warrants in
which, in lieu of payment of the Exercise Price, the Holder elects to receive a
lesser number of Securities such that the value of the Securities that such
Holder would otherwise have been entitled to receive but has agreed not to
receive, as determined by the closing price of such Securities on the date of
exercise or, if such date is not a trading day, on the next prior trading day,
is equal to the Exercise Price with respect to such exercise. A Holder may only
elect a Cashless Exercise if Securities issuable by the Company on such exercise
are publicly traded securities.

                  (c)      "Closing Date" means the date on which the Offering
is closed.

                  (d)      "Commission" means the Securities and Exchange
Commission.

                  (e)      "Common Stock" means the common stock, par value
$0.01, of the Company.

                  (f)      "Company" means I-Sector Corporation, a Delaware
corporation.

                  (g)      "Company's Expenses" means any and all expenses
payable by the Company or the Warrantholder in connection with an offering
described in Section 6 hereof, except Warrantholder's Expenses.

                  (h)      "Effective Date" means the date on which the
Registration Statement is declared effective by the Commission.

                  (i)      "Exercise Price" means the price at which the
Warrantholder may purchase one Unit upon exercise of Warrants as determined from
time to time pursuant to the provisions hereof. The initial Exercise Price is
$________ per Unit.

                  (j)      "Offering" means the public offering of Units made
pursuant to the Registration Statement.

                  (k)      "Participating Underwriter" means any underwriter
participating in the sale of the Securities pursuant to a registration under
Section 6 of this Warrant Certificate.

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                  (l)      "Registration Statement" means the Company's
registration statement (File No. 333 -113575) as amended on the Closing Date.

                  (m)      "Rules and Regulations" means the rules and
regulations of the Commission adopted under the Act.

                  (n)      "Securities" means the securities obtained or
obtainable upon exercise of the Warrant or securities obtained or obtainable
upon exercise, exchange, or conversion of such securities.

                  (o)      "Unit" means two shares of Common Stock and one Unit
Warrant.

                  (p)      "Unit Warrant" means a warrant to purchase one share
of Common Stock issued pursuant to the Warrant Agreement.

                  (q)      "Warrant Agreement" means that certain Warrant
Agreement, dated as of ______________, 2004, by and between the Company and
American Stock Transfer & Trust Company relating to the issuance of Unit
Warrants.

                  (r)      "Warrant Certificate" means a certificate evidencing
the Warrant.

                  (s)      "Warrantholder" means a record holder of the Warrant
or Securities. The initial Warrantholder is Paulson Investment Company, Inc.

                  (t)      "Warrantholder's Expenses" means the sum of (i) the
aggregate amount of cash payments made to an underwriter, underwriting
syndicate, or agent in connection with an offering described in Section 6 hereof
multiplied by a fraction the numerator of which is the aggregate sales price of
the Securities sold by such underwriter, underwriting syndicate, or agent in
such offering and the denominator of which is the aggregate sales price of all
of the securities sold by such underwriter, underwriting syndicate, or agent in
such offering and (ii) all out-of-pocket expenses of the Warrantholder, except
for the fees and disbursements of one firm retained as legal counsel for the
Warrantholder that will be paid by the Company.

                  (u)      "Warrant" means the warrant evidenced by this
certificate, any similar certificate issued in connection with the Offering, or
any certificate obtained upon transfer or partial exercise of the Warrant
evidenced by any such certificate.

         2.       Exercise of Warrant. All or any part of the Warrant
represented by this Warrant Certificate may be exercised commencing on the first
anniversary of the Effective Date and ending at 5 p.m. Pacific Time on the fifth
anniversary of the Effective Date by surrendering this Warrant Certificate,
together with appropriate instructions, duly executed by the Warrantholder or by
its duly authorized attorney, at the office of the Company, 6401 Southwest
Freeway, Houston, Texas 77074; or at such other office or agency as the Company
may designate. The date on which such instructions are received by the Company
shall be the date of exercise. If the Holder has elected a Cashless Exercise,
such instructions shall so state. Upon receipt of notice of exercise, the
Company shall promptly instruct its transfer agent to prepare certificates for
the Securities to be received by the Warrantholder upon completion of the
Warrant exercise. When such certificates are prepared, the Company shall notify
the Warrantholder and deliver such

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certificates to the Warrantholder or as per the Warrantholder's instructions
promptly upon payment in full by the Warrantholder, in lawful money of the
United States, of the Exercise Price payable with respect to the Securities
being purchased, if any. If the Warrantholder shall represent and warrant that
all applicable registration and prospectus delivery requirements for their sale
have been complied with upon the prior sale of the Securities received upon
exercise of the Warrant, such certificates shall not bear a legend with respect
to the Securities Act of 1933.

         If fewer than all the Securities purchasable under the Warrant are
purchased, the Company will, upon such partial exercise, execute and deliver to
the Warrantholder a new Warrant Certificate (dated the date hereof), in form and
tenor similar to this Warrant Certificate, evidencing that portion of the
Warrant not exercised. The Securities to be obtained on exercise of the Warrant
will be deemed to have been issued, and any person exercising the Warrants will
be deemed to have become a holder of record of those Securities, as of the date
of the payment of the Exercise Price.

         3.       Adjustments in Certain Events. The number, class, and price of
Securities for which this Warrant Certificate may be exercised are subject to
adjustment from time to time upon the happening of certain events as follows:

                  (a)      If the outstanding shares of the Company's Common
Stock are divided into a greater number of shares or a dividend in stock is paid
on the Common Stock, the number of shares of Common Stock for which the Warrant
is then exercisable will be proportionately increased and the Exercise Price
will be proportionately reduced; and, conversely, if the outstanding shares of
Common Stock are combined into a smaller number of shares of Common Stock, the
number of shares of Common Stock for which the Warrant is then exercisable will
be proportionately reduced and the Exercise Price will be proportionately
increased. The increases and reductions provided for in this Section 3(a) will
be made with the intent and, as nearly as practicable, the effect that neither
the percentage of the total equity of the Company obtainable on exercise of the
Warrants nor the price payable for such percentage upon such exercise will be
affected by any event described in this Section 3(a).

                  (b)      In case of any change in the Common Stock through
merger, consolidation, reclassification, reorganization, partial or complete
liquidation, purchase of substantially all the assets of the Company, or other
change in the capital structure of the Company, then, as a condition of such
change, lawful and adequate provision will be made so that the holder of this
Warrant Certificate will have the right thereafter to receive upon the exercise
of the Warrant the kind and amount of shares of stock or other securities or
property to which he would have been entitled if, immediately prior to such
event, he had held the number of shares of Common Stock obtainable upon the
exercise of the Warrant. In any such case, appropriate adjustment will be made
in the application of the provisions set forth herein with respect to the rights
and interest thereafter of the Warrantholder, to the end that the provisions set
forth herein will thereafter be applicable, as nearly as reasonably may be, in
relation to any shares of stock or other property thereafter deliverable upon
the exercise of the Warrant. The Company will not permit any change in its
capital structure to occur unless the issuer of the shares of stock or other
securities to be received by the holder of this Warrant Certificate, if not the
Company, agrees to be bound by and comply with the provisions of this Warrant
Certificate.

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                  (c)      When any adjustment is required to be made in the
number of shares of Common Stock, other securities, or the property purchasable
upon exercise of the Warrant, the Company will promptly determine the new number
of such shares or other securities or property purchasable upon exercise of the
Warrant and (i) prepare and retain on file a statement describing in reasonable
detail the method used in arriving at the new number of such shares or other
securities or property purchasable upon exercise of the Warrant and (ii) cause a
copy of such statement to be mailed to the Warrantholder within thirty (30) days
after the date of the event giving rise to the adjustment.

                  (d)      No fractional shares of Common Stock or other
securities will be issued in connection with the exercise of the Warrant, but
the Company will pay, in lieu of fractional shares, a cash payment therefor on
the basis of the mean between the bid and asked prices of the Common Stock in
the over-the-counter market or the last sale price of the Common Stock on the
principal exchange or other trading facility on which the Common Stock is traded
on the day immediately prior to exercise.

                  (e)      If securities of the Company or securities of any
subsidiary of the Company are distributed pro rata to holders of Common Stock,
such number of securities will be distributed to the Warrantholder or its
assignee upon exercise of its rights hereunder as such Warrantholder or assignee
would have been entitled to if this Warrant Certificate had been exercised prior
to the record date for such distribution. The provisions with respect to
adjustment of the Common Stock provided in this Section 3 will also apply to the
securities to which the Warrantholder or its assignee is entitled under this
Section 3(e).

                  (f)      Notwithstanding anything herein to the contrary,
there will be no adjustment made hereunder on account of (i) the sale by the
Company of the Common Stock or other Securities purchasable upon exercise of the
Warrant and (ii) any adjustment to the Unit Warrants pursuant to the Warrant
Agreement.

                  (g)      If, immediately prior to any exercise of Warrants,
there are no outstanding Unit Warrants, or other securities for which the
Warrants are then exercisable and that are convertible into or exercisable to
purchase Common Stock ("Other Securities"), then upon such exercise of Warrants,
the Company shall issue to the Warrantholder, in lieu of Unit Warrants, or such
Other Securities, and in addition to any other Common Stock issuable upon such
exercise of Warrants, the number of shares of Common Stock that would have been
issuable upon exercise of the Unit Warrants, or exercise or conversion of such
Other Securities underlying the exercised Warrants, reduced by a number of
shares of Common Stock equal in value to the exercise price (if any) of such
Unit Warrants or Other Securities.

         4.       Reservation of Securities. The Company agrees that the number
of shares of Common Stock or other Securities sufficient to provide for the
exercise of the Warrant upon the basis set forth above will at all times during
the term of the Warrant be reserved for exercise.

         5.       Validity of Securities. All Securities delivered upon the
exercise of the Warrant will be duly and validly issued in accordance with their
terms, and the Company will pay all documentary and transfer taxes, if any, in
respect of the original issuance thereof upon exercise of the Warrant.

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         6.       Registration of Securities Issuable on Exercise of Warrant
Certificate.

                  (a)      The Company will register the Securities with the
Commission pursuant to the Act so as to allow the unrestricted sale of the
Securities to the public from time to time commencing on the first anniversary
of the Effective Date and ending at 5:00 p.m. Pacific Time on the fifth
anniversary of the Effective Date (the "Registration Period"). The Company will
also file such applications and other documents necessary to permit the sale of
the Securities to the public during the Registration Period in those states in
which the Units were qualified for sale in the Offering or such other states as
the Company and the Warrantholder agree to. In order to comply with the
provisions of this Section 6(a), the Company is not required to file more than
one registration statement. No registration right of any kind, "piggyback" or
otherwise, will last longer than five years from the Effective Date.

                  (b)      The Company will pay all of the Company's Expenses
and each Warrantholder will pay its pro rata share of the Warrantholder's
Expenses relating to the registration, offer, and sale of the Securities.

                  (c)      Except as specifically provided herein, the manner
and conduct of the registration, including the contents of the registration,
will be entirely in the control and at the discretion of the Company. The
Company will file such post-effective amendments and supplements as may be
necessary to maintain the currency of the registration statement during the
period of its use. In addition, if the Warrantholder participating in the
registration is advised by counsel for Paulson Investment Company, Inc. (or if
Paulson Investment Company, Inc. is not a Warrantholder, counsel representing
more than 50% of the then outstanding warrants) that the registration statement,
in that counsel's opinion, is deficient in any material respect, the Company
will use its best efforts to cause the registration statement to be amended to
eliminate the concerns raised.

                  (d)      The Company will furnish to the Warrantholder the
number of copies of a prospectus, including a preliminary prospectus, in
conformity with the requirements of the Act, and such other documents as it may
reasonably request in order to facilitate the disposition of Securities owned by
it.

                  (e)      The Company will, at the request of Warrantholders
holding at least 50 percent of the then outstanding Warrants, (i) furnish an
opinion of the counsel representing the Company for the purposes of the
registration pursuant to this Section 6, addressed to the Warrantholders and any
Participating Underwriter, (ii) furnish an appropriate letter from the
independent public accountants of the Company, addressed to the Warrantholders
and any Participating Underwriter, and (iii) make representations and warranties
to the Warrantholders and any Participating Underwriter. A request pursuant to
this subsection (e) may be made on three occasions. The documents required to be
delivered pursuant to this subsection (e) will be dated within ten days of the
request and will be, in form and substance, equivalent to similar documents
furnished to the underwriters in connection with the Offering, with such changes
as may be appropriate in light of changed circumstances.

         7.       Indemnification in Connection with Registration.

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                  (a)      If any of the Securities are registered, the Company
will indemnify and hold harmless each selling Warrantholder, any person who
controls any selling Warrantholder within the meaning of the Act, and any
Participating Underwriter against any losses, claims, damages, or liabilities,
joint or several, to which any Warrantholder, controlling person, or
Participating Underwriter may be subject under the Act or otherwise; and it will
reimburse each Warrantholder, each controlling person, and each Participating
Underwriter for any legal or other expenses reasonably incurred by the
Warrantholder, controlling person, or Participating Underwriter in connection
with investigating or defending any such loss, claim, damage, liability, or
action, insofar as such losses, claims, damages, or liabilities, joint or
several (or actions in respect thereof), arise out of or are based upon any
untrue statement or alleged untrue statement of any material fact contained, on
the effective date thereof, in any such registration statement or any
preliminary prospectus or final prospectus, or any amendment or supplement
thereto, or arise out of or are based upon the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading; provided, however, that the Company will
not be liable in any case to the extent that any loss, claim, damage, or
liability arises out of or is based upon any untrue statement or alleged untrue
statement or omission or alleged omission made in any registration statement,
preliminary prospectus, final prospectus, or any amendment or supplement
thereto, in reliance upon and in conformity with written information furnished
by a Warrantholder for use in the preparation thereof; provided, however, that
the foregoing indemnification with respect to the preliminary prospectus shall
not insure to the benefit of any Participating Underwriter from which the person
asserting any such loss, claim, damage or liability, action or proceeding
purchased Units if (1) a copy of the final prospectus (as then amended or
supplemented) was required by law to be delivered to such person at or prior to
the written confirmation of the sale of Units to such person, (2) a copy of the
final prospectus (as then amended or supplemented) was not sent or given to such
person by or on behalf of such Participating Underwriter and such failure was
not due to the Company's failure to make available sufficient quantities of the
final prospectus to those Underwriters, and (3) the final prospectus (as so
amended or supplemented) would have cured the defect giving rise to such loss,
claim, damage or liability, action or proceeding. The indemnity agreement
contained in this subparagraph (a) will not apply to amounts paid to any
claimant in settlement of any suit or claim unless such payment is first
approved by the Company, such approval not to be unreasonably withheld.

                  (b)      Each selling Warrantholder, as a condition of the
Company's registration obligation, will indemnify and hold harmless the Company,
each of its directors, each of its officers who have signed any registration
statement or other filing or any amendment or supplement thereto, and any person
who controls the Company within the meaning of the Act, against any losses,
claims, damages, or liabilities to which the Company or any such director,
officer, or controlling person may become subject under the Act or otherwise,
and will reimburse any legal or other expenses reasonably incurred by the
Company or any such director, officer, or controlling person in connection with
investigating or defending any such loss, claim, damage, liability, or action,
insofar as such losses, claims, damages, or liabilities (or actions in respect
thereof) arise out of or are based upon any untrue or alleged untrue statement
of any material fact contained in said registration statement, any preliminary
or final prospectus, or other filing, or any amendment or supplement thereto, or
arise out of or are based upon the omission or the alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, but only to the extent that such untrue
statement or alleged

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untrue statement or omission or alleged omission was made in said registration
statement, preliminary or final prospectus, or other filing, or amendment or
supplement, in reliance upon and in conformity with written information
furnished by such Warrantholder for use in the preparation thereof; provided,
however, that the indemnity agreement contained in this subparagraph (b) will
not apply to amounts paid to any claimant in settlement of any suit or claim
unless such payment is first approved by the Warrantholder, such approval not to
be unreasonably withheld.

                  (c)      Promptly after receipt by an indemnified party under
subparagraphs (a) or (b) above of notice of the commencement of any action, such
indemnified party will, if a claim in respect thereof is to be made against an
indemnifying party, notify the indemnifying party of the commencement thereof;
but the omission to notify the indemnifying party will not relieve it from any
liability that it may have to any indemnified party otherwise than under
subparagraphs (a) and (b).

                  (d)      If any such action is brought against any indemnified
party and it notifies an indemnifying party of the commencement thereof, the
indemnifying party will be entitled to participate in, and, to the extent that
it may wish, jointly with any other indemnifying party similarly notified, to
assume the defense thereof, with counsel satisfactory to such indemnified party;
and after notice from the indemnifying party to such indemnified party of its
election to assume the defense thereof, the indemnifying party will not be
liable to such indemnified party for any legal or other expenses subsequently
incurred by such indemnified party in connection with the defense thereof other
than reasonable costs of investigation.

         8.       Restrictions on Transfer. This Warrant Certificate and the
Warrant may not be sold, transferred, assigned or hypothecated for a one-year
period after the Effective Date except to underwriters of the Offering or to
individuals who are either a partner or an officer of such an underwriter or by
will or by operation of law. The Warrant may be divided or combined, upon
request to the Company by the Warrantholder, into a certificate or certificates
evidencing the same aggregate number of Warrants.

         9.       No Rights as a Shareholder. Except as otherwise provided
herein, the Warrantholder will not, by virtue of ownership of the Warrant, be
entitled to any rights of a shareholder of the Company but will, upon written
request to the Company, be entitled to receive such quarterly or annual reports
as the Company distributes to its shareholders.

         10.      Notice. Any notices required or permitted to be given
hereunder will be in writing and may be served personally or by mail; and if
served by mail will be addressed as follows:

         If to the Company:

                  I-Sector Corporation
                  6401 Southwest Freeway
                  Houston, TX  77074
                  Attention: Chief Financial Officer;

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         If to the Warrantholder:

                  at the address furnished
                  by the Warrantholder to the
                  Company for the purpose of
                  notice.

         Any notice so given by mail will be deemed effectively given 48 hours
after mailing when deposited in the United States mail, registered or certified
mail, return receipt requested, postage prepaid and addressed as specified
above. Any party may by written notice to the other specify a different address
for notice purposes.

         11.      Applicable Law. This Warrant Certificate will be governed by
and construed in accordance with the laws of the State of Oregon, without
reference to conflict of laws principles thereunder. All disputes relating to
this Warrant Certificate shall be tried before the courts of Oregon located in
Multnomah County, Oregon to the exclusion of all other courts that might have
jurisdiction.

         Dated as of ______________, 2004

                                       I-SECTOR CORPORATION

                                       By: _____________________________________
                                           Name:
                                           Title:

                                       8<PAGE>
                                                                   EXHIBIT 10.15

                FIRST REFUSAL AND TRANSFER RESTRICTION AGREEMENT

         This First Refusal and Transfer Restriction Agreement (the "Agreement")
is entered into as of the 3rd day of April, 2003, by and among InterNetwork
Experts, Inc., a Delaware corporation (the "Company"), I-Sector Corporation, a
Delaware corporation ("I-Sector"), Digital Precision, Inc., a Texas corporation
("DPI"), and David Peoples, Don Smith, David DeYoung, John C'de Baca, Andrew
Cantrell, Joey Johnson, Joel Hutton, Steve Bergstrom, Grant Hartline, Dave
Plank, Veronica Marriott, Brian Cochran Leigh McGregor, Bud Lowry, and Gordon
Jackson (each a "Potential Shareholder" and collectively, the "Potential
Shareholders").

         The following recitals are true and constitute the basis for this
Agreement:

         A. The Company and DPI are parties to that certain Asset Purchase
            Agreement of even date herewith (the "Purchase Agreement"), pursuant
            to which the Company is purchasing certain assets of DPI (all
            capitalized terms used but not otherwise defined herein shall have
            the meaning given to them in the Purchase Agreement);

         B. As partial consideration for DPI's sale of the Purchased Assets to
            the Company, the Company will issue to DPI 1,800,000 shares of the
            Company's common stock, $0.001 par value per share, which shares are
            subject to forfeiture pursuant to the terms of the Purchase
            Agreement;

         C. Prior to the consummation of the transactions described in the
            Purchase Agreement, I-Sector owned all of the outstanding Equity
            Securities (as defined below) of the Company and following the
            consummation of the transactions described in the Purchase Agreement
            will own approximately 90% of the Equity Securities of the Company;

         D. In connection with accepting an offer of employment with the
            Company, each Potential Shareholder will be eligible to receive
            performance options to acquire shares of the Company's common stock;
            and

         E. DPI and the Potential Shareholders wish to provide further
            inducement to the Company to enter into the Purchase Agreement and
            acquire the Purchased Assets, as well as to employ the Potential
            Shareholders and potentially grant performance options to the
            Potential Shareholders pursuant to the terms of each Potential
            Shareholder's offer of employment and, accordingly, are willing to
            allow certain restrictions and obligations to be placed on the
            Equity Securities.

         NOW, THEREFORE, in consideration of the foregoing premises and certain
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties agree as follows:

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         1. Definitions.

            (a) Affiliate. For purposes of this Agreement, the term "Affiliate"
shall mean with respect to any Person, any other Person directly or indirectly
controlling or controlled by or under direct or indirect common control with
such Person, and with respect to any individual, shall mean his or her spouse,
sibling, child, step child, grandchild, niece, nephew or parent of such Person,
or the spouse thereof ("Immediate Family"), or a trust or family limited
partnership for the benefit of any such Person or any member of such Person's
Immediate Family. For purposes of this definition, "control" (including, with
correlative meanings, the terms "controlling," "controlled by" and "under common
control with"), as used with respect to any Person, shall mean the possession,
directly or indirectly, of the power to direct or cause the direction of the
management or policies of such Person, whether through the ownership of voting
securities, by agreement or otherwise; provided, however, that beneficial
ownership of 20% or more of the voting securities of a Person shall be deemed to
be control.

            (b) Delivery. For purposes of this Agreement, the term "Delivery"
shall have the meaning set forth in Section 6 below.

            (c) Equity Securities. For purposes of this Agreement, the term
"Equity Securities" shall mean any securities now or hereafter owned or held by
I-Sector, DPI or any Potential Shareholder (or a transferee in accordance with
Section 2.3 herein), having voting rights in the election of the Board of
Directors of the Company, or any securities evidencing an ownership interest in
the Company, or any securities convertible into or exercisable for any shares of
the foregoing.

            (d) Holders. For purposes of this Agreement, the term "Holders"
shall mean DPI, the Potential Shareholders or persons who have acquired Equity
Securities from either DPI or any Potential Shareholder or their transferees or
assignees in accordance with the provisions of this Agreement.

            (e) Person. For purposes of this Agreement, the term "Person" shall
mean any individual, firm, partnership, corporation, trust, joint venture,
association, joint stock company, limited liability company, unincorporated
organization or any other entity or organization, including a government or
agency or political subdivision thereof, and shall include any successor (by
merger or otherwise) of such entity.

            (f) Transfer. For purposes of this Agreement, the term "Transfer"
shall include any sale, assignment, encumbrance, hypothecation, pledge,
conveyance in trust, gift, transfer by bequest, devise or descent, or other
transfer or disposition of any kind, including, but not limited to, transfers
pursuant to divorce or legal separation, transfers to receivers, levying
creditors, trustees or receivers in bankruptcy proceedings or general assignees
for the benefit of creditors, whether voluntary, involuntarily or by operation
of law, directly or indirectly, of any of the Equity Securities.

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         2. Agreements Among the Company, I-Sector, and the Holders.

         2.1 Rights of Refusal.

            (a) Transfer Notice. If at any time a Holder proposes to Transfer
Equity Securities (a "Selling Holder"), then the Selling Holder shall promptly
give the Company written notice of the Selling Holder's intention to make the
Transfer (the "Transfer Notice"). The Transfer Notice shall include (i) a
description of the Equity Securities to be transferred ("Offered Shares"), (ii)
the name(s) and address(es) of the prospective transferee(s), (iii) the
consideration and (iv) the material terms and conditions upon which the proposed
Transfer is to be made. The Transfer Notice shall certify that the Selling
Holder has received a firm offer from the prospective transferee(s) and in good
faith believes a binding agreement for the Transfer is obtainable on the terms
set forth in the Transfer Notice. The Transfer Notice shall also include a copy
of any written proposal, term sheet or letter of intent or other agreement
relating to the proposed Transfer. In the event that the transfer is being made
pursuant to the provisions of Section 2.3, the Transfer Notice shall state under
which specific subsection the Transfer is being made.

            (b) Company's Right of First Refusal. The Company shall have an
option for a period of 20 days from Delivery of the Transfer Notice to elect to
purchase all or any portion of the Offered Shares at the same price and subject
to the same material terms and conditions as described in the Transfer Notice.
The Company may exercise such purchase option and, thereby, purchase all or any
portion of the Offered Shares by notifying the Selling Holder in writing before
expiration of such 20 day period as to the number of such shares that it wishes
to purchase. If the Company gives the Selling Holder notice that it desires to
purchase such shares, then payment for the Offered Shares shall be by check or
wire transfer, against delivery of the Offered Shares to be purchased at a place
agreed upon between the parties and at the time of the scheduled closing
therefor, which shall be no later than 45 days after Delivery to the Company of
the Transfer Notice, unless the value of the purchase price has not yet been
established pursuant to Section 2.1(c), in which case the closing shall occur no
later than 45 days after the value of the purchase price has been determined.

            (c) Should the purchase price specified in the Transfer Notice be
payable in property other than cash or evidences of indebtedness, the Company
shall have the right to pay the purchase price in the form of cash equal in
amount to the value of such property. If the Selling Holder and the Company
cannot agree on such cash value within 20 days after Delivery to the Company of
the Transfer Notice, the valuation shall be made by an appraiser of recognized
standing selected by the Selling Holder and the Company or, if they cannot agree
on an appraiser within 25 days after Delivery to the Company of the Transfer
Notice, each shall select an appraiser of recognized standing and the two
appraisers shall designate a third appraiser of recognized standing, whose
appraisal shall be determinative of such value. The cost of such appraisal shall
be shared equally by the Selling Holder and the Company. If the time for the
closing of the Company's purchase has expired but for the determination of the
value of the purchase price offered by the prospective transferee(s), then such
closing shall be held on or prior to the 5th business day after such valuation
shall have been made pursuant to this subsection.

                                       3
<PAGE>
         2.2 Non-Exercise of Rights. To the extent that the Company has not
exercised its rights to purchase the Offered Shares within the time periods
specified in Section 2.1, the Selling Holder shall have a period of 60 days from
the expiration of such rights in which to sell the Offered Shares, as the case
may be, upon terms and conditions (including the purchase price) no more
favorable than those specified in the Transfer Notice to the third-party
transferee(s) identified in the Transfer Notice. The third-party transferee(s)
shall acquire the Offered Shares subject to the rights of first refusal under
this Agreement. In the event the Selling Holder does not consummate the sale or
disposition of the Offered Shares within the 60 day period from the expiration
of these rights, the Company's first refusal rights shall continue to be
applicable to any subsequent disposition of the Offered Shares by the Selling
Holder until such right lapses in accordance with the terms of this Agreement.
Furthermore, the exercise or non-exercise of the rights of the Company under
this Section 2 to purchase the Equity Securities from a Selling Holder shall not
adversely affect its rights to make subsequent purchases from the Selling Holder
of Equity Securities.

         2.3 Limitations to Rights of Refusal. Notwithstanding the provisions of
Section 2.1 of this Agreement, the first refusal rights of the Company shall not
apply to any of the following Transfers so long as no such Transfer occurs prior
to the first anniversary of this Agreement: (a) the Transfer of any Equity
Securities by DPI to its shareholders after the first anniversary of the date
hereof; (b) the Transfer of Equity Securities to any spouse or member of a
Holder's immediate family, or to a custodian, trustee (including a trustee of a
voting trust), executor, or other fiduciary for the account of the Holder's
spouse or members of the Holder's immediate family, or to a trust for the
Holder's own self, or a charitable remainder trust; or (c) any sale of Equity
Securities to the public pursuant to a registration statement filed with, and
declared effective by, the Securities and Exchange Commission under the
Securities Act of 1933, as amended, provided, however, that in the event of any
Transfer made pursuant to the exemption provided by clauses (a) and (b), (i) the
Holder shall inform the Company of such Transfer prior to effecting it and (ii)
in the case of clause (b), each such transferee or assignee, prior to the
completion of the Transfer, shall have executed documents assuming the
obligations of the Holder under this Agreement with respect to the transferred
Equity Securities. Such transferred Equity Securities shall remain "Equity
Securities" hereunder, and such pledgee, transferee or donee shall be treated as
a "Holder" for purposes of this Agreement and shall become a party to this
Agreement.

         2.4 Prohibited Transfers. Except as otherwise provided in this
Agreement, each Holder will not Transfer or otherwise encumber or dispose of in
any way, all of any part of or any interest in any Equity Securities. Further,
no Holder shall voluntarily sell, assign or transfer any interest in any equity
Securities to any competitor of the Company (as determined by the sole
discretion of the Board of Directors), or propose to do so in any Transfer
Notice, without the prior written consent of the Board of Directors of the
Company. Any Transfer or other encumbrance or disposition of Equity Securities
not made in conformance with this Agreement shall be null and void, shall not be
recorded on the books of the Company and shall not be recognized by the Company.

         2.5 Drag-Along Right. If I-Sector proposes to Transfer for cash or
marketable equity securities traded or quoted on a national exchange or
quotation system all of the Equity Securities held by I-Sector to a third party
that is not an Affiliate of I-Sector (a "Transferee"),

                                       4
<PAGE>
I-Sector or such Transferee, to the extent authorized by I-Sector, may require
the Holders to participate in such Transfer and sell or transfer all the Equity
Securities held by such Holders in the manner and on the same terms and
conditions as I-Sector (the "Drag-Along Right"). No later than 20 days prior to
the consummation of the Transfer, I-Sector shall deliver a written notice to the
Holders specifying the names and address of the proposed parties to such
Transfer and the terms and conditions thereof. In the event such written notice
is given, any warrants and options held by each Holder which are then presently
exercisable (or become exercisable as a result of the transaction that is the
subject of the notice), shall be exercised by the Holders for shares of the
common stock of the Company, which common stock shall also be subject to the
Drag-Along Right, and such options and warrants to the extent not then
exercisable (or to the extent such options and warrants would not become
exercisable as a result of such transaction) shall automatically be cancelled.
The closing of the Transfer shall be held at such time and place as I-Sector or
the Transferee shall reasonably specify. Prior to or at such closing, each
Holder shall deliver stock certificates representing its Equity Securities, duly
endorsed for transfer, and each such Holder shall represent and warrant that (i)
such Holder is the record and beneficial owner of such Equity Securities and
(ii) such Equity Securities are being transferred free and clear of any liens,
charges, claims or encumbrances (other than restrictions imposed pursuant to
applicable Federal and state securities laws and this Agreement). Each Holder
agrees to take all actions necessary and desirable in connection with the
consummation of the Transfer, including without limitation, voting in favor of
the Transfer, to the extent required, and waiving all appraisal rights available
to any such Holder under applicable law, and shall make such additional
representations and warranties as shall be customary in transactions of a
similar nature.

         3. Assignments and Transfers; No Third Party Beneficiaries. This
Agreement and the rights and obligations of the parties hereunder shall inure to
the benefit of, and be binding upon, their respective successors, assigns and
legal representatives, but shall not otherwise be for the benefit of any third
party.

         4. Legend. Each existing or replacement certificate for shares now
owned or hereafter acquired by a Holder shall bear the following legend upon its
face:

         "THE SALE, PLEDGE, HYPOTHECATION, ASSIGNMENT OR TRANSFER OF THE
         SECURITIES REPRESENTED BY THIS CERTIFICATE IS SUBJECT TO THE TERMS AND
         CONDITIONS OF A CERTAIN FIRST REFUSAL AND TRANSFER RESTRICTION
         AGREEMENT BY AND BETWEEN THE SHAREHOLDER, THE COMPANY AND CERTAIN
         HOLDERS OF STOCK OF THE COMPANY. COPIES OF SUCH AGREEMENT MAY BE
         OBTAINED UPON WRITTEN REQUEST TO THE SECRETARY OF THE COMPANY."

         5. Effect of Change in Company's Capital Structure. Appropriate
adjustments shall be made in the number and class of Equity Securities in the
event of a stock dividend, stock split, reverse stock split, combination,
reclassification or like change in the capital structure of the Company.

                                       5
<PAGE>
         6. Notices. All notices and other communications given or made pursuant
hereto shall be in writing and shall be deemed effectively given 5 days after
having been sent by registered or certified mail, return receipt requested,
postage prepaid and shall constitute "Delivery" of notice. All communications
shall be sent to the respective parties at the addresses set forth on the
signature pages attached hereto (or at such other addresses as shall be
specified by notice given in accordance with this Section 6).

         7. Further Instruments and Actions. The parties agree to execute such
further instruments and to take such further action as may reasonably be
necessary to carry out the intent of this Agreement. Each Holder agrees to
cooperate affirmatively with the Company to enforce rights and obligations
pursuant hereto.

         8. Term. This Agreement shall terminate and be of no further force or
effect upon (a) the consummation of the Company's sale of its common stock or
other securities pursuant to a registration statement under the Securities Act
of 1933, as amended, (other than a registration statement relating either to
sale of securities to employees of the Company pursuant to any stock option,
stock purchase or similar plan or a SEC Rule 145 transaction), or (b) the
liquidation and dissolution of the Company pursuant to Delaware corporate law.

         9. Entire Agreement. This Agreement contains the entire understanding
of the parties hereto with respect to the subject matter hereof, supersedes all
other agreements between or among any of the parties with respect to the subject
matter hereof. This Agreement shall be interpreted under the laws of the State
of Delaware without reference to Delaware conflicts of law provisions.

         10. Amendments and Waivers. Any term 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 with
the written consent of the Company. Any amendment or waiver affected in
accordance with this paragraph shall be binding upon the Holders and their
respective successors and assigns.

         11. Severability. If one or more provisions of this Agreement are held
to be unenforceable under applicable law, such provision shall be excluded from
this Agreement and the balance of the Agreement shall be interpreted as if such
provision were so excluded and shall be enforceable in accordance with its
terms.

         12. Attorney's Fees. In the event that any dispute among the parties to
this Agreement should result in litigation, the prevailing party in such dispute
shall be entitled to recover from the losing party all fees, costs and expenses
of enforcing any right of such prevailing party under or with respect to this
Agreement, including without limitation, such reasonable fees and expenses of
attorneys and accountants, which shall include, without limitation, all fees,
costs and expenses of appeals.

         13. Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument. In addition, the parties
agree that the counterparts of this Agreement so signed may be evidenced by
Delivery of a telecopy or other electronic

                                       6
<PAGE>
transmission of the signature page image to this Agreement to the other parties
and that such telecopied signature pages shall be treated for all purposes as
original signature pages to this Agreement.

                ***REMAINDER OF PAGE INTENTIONALLY LEFT BLANK***

                                       7
<PAGE>
         IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first written above.

                                     INTERNETWORK EXPERTS, INC.

                                     By:    /s/ Mark Hilz
                                        ----------------------------------------
                                        Mark Hilz, Chief Executive Officer

                                     Address: 15960 Midway Road
                                              Suite 101
                                              Addison, Texas  75001

                                     I-SECTOR CORPORATION

                                     By:    /s James H. Long
                                        ----------------------------------------
                                        James H. Long, Chief Executive Officer

                                     Address: 6401 Southwest Freeway
                                              Houston, TX 770774

                                     DIGITAL PRECISION, INC.

                                     By:    /s/ David Peoples
                                        ----------------------------------------
                                        David Peoples, Chief Executive Officer

                                     Address: 13700 Bullick Hollow Road
                                              Austin, Texas 78726

                                     -------------------------------------------
                                     DAVID PEOPLES

                                     Address: N/A

<PAGE>
                                            /s/ Joel Hutton
                                     -------------------------------------------
                                     JOEL HUTTON

                                     Address: 2688 Hillside Drive
                                              Highland Village, TX 75077

                                            /s/ Leigh McGregor
                                     -------------------------------------------
                                     LEIGH MCGREGOR

                                     Address: 3405 Kelsey Court
                                              Flower Mound, TX 75028

                                            /s/ Bryan Cochran
                                     -------------------------------------------
                                     BRYAN COCHRAN

                                     Address: 603 Strettford Lane
                                              Allen, TX 75002

                                            /s/ Dave Plank
                                     -------------------------------------------
                                     DAVE PLANK

                                     Address: 1704 Newton Drive
                                              Flower Mound, TX 75028

                                            /s/ Veronica Marriott
                                     -------------------------------------------
                                     VERONICA MARRIOTT

                                     Address: 1316 Adair St.
                                              Dallas, TX 75204

<PAGE>
                                            /s/ Don Smith
                                     -------------------------------------------
                                     DON SMITH

                                     Address: 608 Furlong Drive
                                              Austin, TX 78766

                                            /s/ David De Young
                                     -------------------------------------------
                                     DAVID DEYOUNG

                                     Address: 825 Glen Garry Drive
                                              Flower Mound, TX 75022

                                            /s/ John C'de Baca
                                     -------------------------------------------
                                     JOHN C'DE BACA

                                     Address: 2929 Woodway
                                              Flower Mound, TX 75028

                                            /s/ Andrew Cantrell
                                     -------------------------------------------
                                     ANDREW CANTRELL

                                     Address: 2818 Bluejay
                                              Cedar Park, TX 78613

                                            /s/ Joey Johnson
                                     -------------------------------------------
                                     JOEY JOHNSON

                                     Address: 1330 Barrington Drive
                                              Coppell, TX 75019

<PAGE>
                                            /s/ Steve Bergstrom
                                     -------------------------------------------
                                     STEVE BERGSTROM

                                     Address: 5736 Junabyrd Lane
                                              Austin, TX 78749

                                            /s/ Grant Hartline
                                     -------------------------------------------
                                     GRANT HARTLINE

                                     Address: 5529 Herd Drive
                                              Austin, TX 78735

                                            /s/ A.L. Lowry
                                     -------------------------------------------
                                     A.L. LOWRY

                                     Address: 2504 Waterford Drive
                                              Irving, TX 25063

                                            /s/ Gordon Jackson
                                     -------------------------------------------
                                     GORDON JACKSON

                                     Address: 17021 Poncho Lane
                                              Austin, TX 78717

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