Document:

<PAGE>

                                                                    EXHIBIT 4.5
                         SEE REVERSE FOR RESTRICTIONS

No. F-                                                                   Shares
                                  CYNET, INC.

                                PREFERRED STOCK

               INCORPORATED UNDER THE LAWS OF THE STATE OF TEXAS

THIS CERTIFIES THAT         SPECIMEN

IS THE OWNER OF

 FULLY PAID AND NON-ASSESSABLE SHARES OF SERIES F CONVERTIBLE PREFERRED STOCK,
                                NO PAR VALUE, OF

CYNET, INC., A CORPORATION ORGANIZED IN THE STATE OF TEXAS, TRANSFERABLE ON
THE BOOKS OF THE CORPORATION BY THE HOLDER HEREOF, IN PERSON OR BY DULY
AUTHORIZED ATTORNEY UPON SURRENDER OF THIS CERTIFICATE PROPERLY ENDORSED.
THIS CERTIFICATE AND THE SHARES REPRESENTED HEREBY ARE ISSUED AND SHALL BE
HELD SUBJECT TO ALL OF THE PROVISIONS OF THE ARTICLES OF INCORPORATION OF THE
CORPORATION, AS AMENDED, AND THE BYLAWS OF THE CORPORATION, AS AMENDED,
COPIES OF WHICH ARE ON FILE AT THE PRINCIPAL OFFICE OF THE CORPORATION, TO
ALL OF WHICH THE HOLDER OF THIS CERTIFICATE ASSENTS BY ACCEPTANCE HEREOF.

IN WITNESS WHEREOF, THE CORPORATION HAS CAUSED THIS CERTIFICATE TO BE SIGNED
BY ITS DULY AUTHORIZED OFFICERS AND ITS CORPORATE SEAL TO BE HERETO AFFIXED.

____________________________________  __________________________________________
(Authorized Officer)                  (Authorized Officer)

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                                  CYNET, INC.

        The shares represented by this certificate have been acquired for
investment and have not been registered under the Securities Act of 1933, as
amended, or the securities laws of any state.  Except upon such registration,
such shares may not be sold or transferred at any time whatsoever except upon
delivery to the Corporation of an opinion of counsel satisfactory to the
Corporation that registration is not required for such transfer and/or
submission to the Corporation of such other evidence as may be satisfactory
to the Corporation to the effect that any such transfer shall not be in
violation of the Securities Act of 1933, as amended, and/or applicable state
securities laws and/or any rule or regulation promulgated thereunder.

STATEMENT REGARDING AUTHORIZED SHARES OF MORE THAN ONE CLASS AND NOTICE OF
DENIAL OF PREEMPTIVE RIGHTS.

        Full statements of the designation, preferences, limitations and
relative rights of the shares of each class of authorized stock of the
Corporation, the variations in the relative rights and preferences of the
shares of any series of Preferred Stock so far as the same have been fixed
and determined, and the authority of the Board of Directors to fix and
determine the relative rights and preferences of each series thereof, and of
the denial of the preemptive rights of shareholders to acquire unissued or
treasury shares of the Corporation, are set forth in the Articles of
Incorporation of the Corporation, as amended, which are on file in the Office
of the Secretary of the State of Texas, copies of which may be obtained,
without charge on written request to the Corporation at its principal place
of business or registered office.

        The following abbreviations, when used in the inscription on the face
of this certificate, shall be construed as though they were written out in
full according to applicable law or regulation:

TEN COM - as tenants in common
TEN ENT - as tenants by the entireties
JT TEN - as joint tenants with right of survivorship and not as tenants in
         common.
<TABLE>
<S>                                               <C>
UNIF GIFT MIN ACT - ________________________________________ Custodian ___________________________________________
                                      (Cust)                                              (Minor)
                                                  Under Uniform Gifts to Minors Act_______________________________
                                                                                          (State)
UNIF TRF MIN ACT - __________________________________ Custodian (until age __) ___________________________________
                                      (Cust)                                              (Minor)
                                                  Under Uniform Transfer to Minor Act ____________________________

      Additional abbreviations may also be used though not in above list.

For value received, _______________________________ hereby sell, assign and transfer unto

                              PLEASE INSERT SOCIAL SECURITY NUMBER OR OTHER
                                   IDENTIFYING NUMBER OF ASSIGNEE

__________________________________________________________________________________________________________________
                    (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING ZIP CODE OF ASSIGNEE)

__________________________________________________________________________________________________________________

__________________________________________________________________________________________________________________

___________________________ shares of the capital stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint ____________________ Attorney to transfer the said stock on the books of the
within named Corporation with full power of substitution in the premises.

Dated ____________________________

        NOTICE:

THE SIGNATURE(S) TO THIS ASSIGNMENT MUST        X___________________________________________________
CORRESPOND WITH THE NAME(S) AS WRITTEN ON                            (SIGNATURE)
THE FACE OF THE CERTIFICATE IN EVERY
PARTICULAR WITHOUT ALTERATION OR
ENLARGEMENT OR ANY CHANGE WHATEVER.             X___________________________________________________
                                                                     (SIGNATURE)

                                                ___________________________________________________
                                                THE SIGNATURE(S) SHOULD BE
                                                GUARANTEED BY AN ELIGIBLE
                                                GUARANTOR INSTITUTION (BANKS,
                                                STOCKBROKERS, SAVINGS AND
                                                LOAN ASSOCIATIONS AND CREDIT
                                                UNIONS WITH MEMBERSHIP IN AN
                                                APPROVED SIGNATURE GUARANTEE
                                                MEDALLION PROGRAM.)
                                                ___________________________________________________

                                                SIGNATURE(S) GUARANTEED BY:
</TABLE><PAGE>

                                     CYNET, INC.

                        STATEMENT OF THE POWERS, DESIGNATIONS,
                            PREFERENCES AND RIGHTS OF THE
                   SERIES D REDEEMABLE CONVERTIBLE PREFERRED STOCK,
                                     NO PAR VALUE

            Pursuant to Section 2.13 of the Texas Business Corporation Act

       The following resolution was duly adopted by the Board of Directors of
CyNet, Inc. (the "Corporation"), pursuant to the provisions of Section 2.13 of
the Texas Business Corporation Act (the "TBCA"), on May 23, 2000, by the
unanimous written consent of the Board of Directors:

       WHEREAS, the Board of Directors is authorized, within the limitations
and restrictions stated in the Articles of Incorporation of the Corporation,
to provide by resolution or resolutions for the issuance of shares of
preferred stock, no par value, of the Corporation, in one or more series with
such voting powers, full or limited, or without voting powers, and such
designations, preferences and relative, participating, optional or other
special rights, and qualifications, limitations or restrictions as shall be
stated and expressed in the resolution or resolutions providing for the
issuance thereof adopted by the Board of Directors, and as are not stated and
expressed in the Articles of Incorporation, or any amendment thereto,
including (but without limiting the generality of the foregoing) such
provisions as may be desired concerning voting, redemption, dividends,
dissolution or the distribution of assets and such other subjects or matters
as may be fixed by resolution or resolutions of the Board of Directors under
the TBCA;

       WHEREAS, on January 31, 2000, the Board of Directors authorized the
issuance of 1,766,423 share of Series D Redeemable Convertible Preferred
Stock, No Par Value, (the "Series D Preferred Stock");

       WHEREAS, on May 23, 2000, the Corporation and the holders of the Series
D Preferred Stock agreed to amend certain powers, designations, preferences
and rights of the Series D Preferred Stock; and

       WHEREAS, it is the desire of the Board of Directors, pursuant to its
authority as aforesaid, to authorize and fix the terms of a series of
preferred stock and the number of shares consisting such series.

       NOW, THEREFORE, BE IT RESOLVED:

       1.     DESIGNATION AND NUMBER OF SHARES.  There shall be hereby created
and established

                                      -1-

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a series of Preferred Stock designated as "Series D Redeemable Convertible
Preferred Stock" (the "Series D Preferred Stock"). The authorized number of
shares of Series D Preferred Stock shall be four million (4,000,000) shares.

       2.     RANK.  The Series D Preferred Stock shall rank (i) senior to (A)
all classes of common stock of the Corporation (including, without limitation,
the Class A voting Common Stock, no par value (the "Class A Common Stock"), of
the Corporation, the Class B non voting Common Stock, no par value (the "Class
B Common Stock"), of the Corporation) and the Series F Convertible Preferred
Stock, No Par Value (the "Series F Preferred Stock") and (B) each other class
or series of Capital Stock of the  Corporation hereafter created which does
not expressly rank PARI PASSU with or senior to the Series D Preferred Stock
(the "Junior Stock") and (ii) pari passu to Series E Convertible Preferred
Stock, No Par Value ("Series E Preferred Stock").

       3.     DIVIDENDS.  Beginning on June 1, 2000, the Series D Preferred
Stock shall earn an annual dividend of 11.25 cents per share which dividend
shall be payable in arrears, in cash or in kind, and in four equal quarterly
installments.  Dividends shall be payable on January 1, April 1, June 1 and
October 1 of each year.

       4.     LIQUIDATION PREFERENCE.

              In the event of a Liquidation, the holders of shares of Series D
Preferred Stock then outstanding shall be entitled to be paid for each share
of Series D Preferred Stock held thereby, out of the assets of the Corporation
available for distribution to its stockholders, before any payment shall be
made or any assets distributed to the holders of any shares of Junior Stock,
an amount (the "Liquidation Amount") in cash equal to $1.51 per share (the
"Liquidation Preference") (subject to adjustment under conditions analogous to
those provided in  Section 7(d)) plus (ii) all declared and unpaid dividends
thereon to the date fixed for the Liquidation. If the assets of the
Corporation are not sufficient to pay in full the foregoing Liquidation
Amounts to the holders of outstanding shares of the Series D Preferred Stock,
then the holders of all shares of Series D Preferred Stock shall share ratably
in such distribution of assets in accordance with the amount that would be
payable on such distribution if the amounts to which the holders of
outstanding shares of Series D Preferred Stock are entitled were paid in full.

       5.     Intentionally omitted.

       6.     VOTING RIGHTS: ELECTION OF DIRECTOR.

              (a)    The holders of Series D Preferred Stock, except as set
forth in subsection (b) below, shall not be entitled or permitted to vote on
any matter required or permitted to be voted upon by holders of the Class A
Common Stock of the Corporation.

                                      -2-

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              (b)    Each outstanding share of Series D Preferred Stock shall
entitle the holder thereof to vote, in person or by proxy, at a special or
annual meeting of stockholders, on all matters entitled to be voted on by
holders of Class A Common Stock voting together as a single class with other
shares entitled to vote thereon. With respect to any such vote, each share of
Series D Preferred Stock shall entitle the holder thereof to cast that number
of votes per share as is equal to the number of votes that such holder would
be entitled to cast had such holder converted its shares of Series D Preferred
Stock into shares of Class A Common Stock on the record date for determining
the stockholders of the Corporation eligible to vote on any such matters.
Except as provided below, the Series D Preferred Stock shall not be entitled
to vote as a separate class.

              (c) For so long as any authorized shares of Series D Preferred
Stock remain outstanding, then the holders of the Series D Preferred Stock or
its representative shall be entitled to attend meetings of the Corporation's
Board of Directors as a non voting observer.  The Corporation agrees to notify
such holder's designated representative of the time and place of any such
meetings in the same manner as Directors of the Corporation are notified and
to deliver to such holder's designated representative all materials that are
made available to Directors of the Corporation at the same time that such
material is made available to Directors.

       7.     CONVERSION.

              (a)    Each holder of the Series D Preferred Stock shall have
the right, at its option, at any time and from time to time after the issuance
hereof, to convert, subject to the terms and provisions of this Section 7, all
or any portion of such holder's shares of Series D Preferred Stock into such
number of fully paid and non-assessable shares of Class A Common Stock at the
rate of one (1) share of Class A Common Stock for each share of Series D
Preferred Stock surrendered for conversion, subject to adjustment as provided
in Section 7(d). Such conversion right shall be exercised by the surrender of
the shares of Series D Preferred Stock to be converted to the Corporation at
any time during usual business hours at its principal place of business to be
maintained by it, accompanied by written notice that the holder elects to
convert such shares of Series D Preferred Stock and specifying the name or
names (with address) in which a certificate or certificates for shares of
Class A Common Stock are to be issued and (if so required by the Corporation)
by a written instrument or instruments of transfer in form reasonably
satisfactory to the Corporation duly executed by the holder or its duly
authorized legal representative and transfer tax  stamps or funds therefore,
if required pursuant to Section 7(j). All shares of Series D Preferred Stock
surrendered for conversion shall be delivered to the Corporation for
cancellation and canceled by it and no shares of Series D Preferred Stock
shall be issued in lieu thereof.

              (b)    As promptly as practicable after the surrender, as herein
provided, of any shares of Series D Preferred Stock for conversion pursuant to
Section 7(a), the Corporation shall deliver to or upon the written order of
the holder of such shares of Series D Preferred Stock so surrendered a
certificate or certificates representing the number of fully paid and
non-assessable shares of Class A Common Stock into which such shares of Series
D Preferred Stock may be or have

                                      -3-

<PAGE>

been converted in accordance with the provisions of this Section 7. Subject to
the following provisions of this Section and of Section 7(d), such conversion
shall be deemed to have been made immediately prior to the close of business
on the date that such shares of Series D Preferred Stock shall have been
surrendered in satisfactory form for conversion, and the Person or Persons
entitled to receive the shares of Class A Common Stock deliverable upon
conversion of such shares of Series D Preferred Stock shall be treated for all
purposes as having become the record holder or holders of such shares of Class
A Common Stock at such appropriate time, and such conversion shall be at  one
to one subject to all adjustments in effect at such time; PROVIDED, HOWEVER,
that no surrender shall be effective to constitute the Person or Persons
entitled to receive the shares of Class A Common Stock deliverable upon such
conversion as the record holder or holders of such shares of Class A Common
Stock while the share  transfer books of the Corporation shall be closed (but
not for any period in excess of  five days), but such surrender shall be
effective to constitute the Person or Persons  entitled to receive such shares
of Class A Common Stock as the record holder or holders thereof for all
purposes immediately prior to the close of business on the next succeeding
day on which such share transfer books are open, and such conversion shall be
deemed to have been made at, and shall be made at one to one subject to all
adjustments in effect at, such  time on such next succeeding day.

              (c)    To the extent permitted by law, when shares of Series D
Preferred Stock are converted, all dividends declared and unpaid on the shares
of Series D Preferred Stock so converted to the date of conversion shall be
immediately due and payable and must accompany the shares of Class A Common
Stock issued upon such conversion.

              (d)    The conversion of the Series D Preferred Stock shall be
subject to adjustment as follows:

                     (i)    In the event that the Corporation shall at any
time or from time to time (w) pay a dividend or make a distribution  (other
than a dividend or distribution paid or made to holders of shares of Series D
Preferred Stock in the manner provided in Section 3) on the outstanding shares
of Class A Common Stock in Capital Stock, (x) subdivide the outstanding shares
of Class A Common Stock into a larger number of shares, (y) combine the
outstanding shares of Class A Common Stock into a smaller number of shares or
(z) issue any shares of its Capital Stock in a reclassification  of the Class
A Common Stock, then, and in each such case, the number of shares of Class A
Common Stock to be received by the holder of any share of Series D Preferred
Stock immediately prior to such event shall be adjusted (and any other
appropriate actions shall be taken by the Corporation) so that the holder of
any share of Series D Preferred Stock thereafter surrendered for conversion
shall be entitled to receive the number of shares of Class A Common Stock or
other securities of the Corporation that such holder would have owned  or
would have been entitled to receive upon or by reason of any of the events
described above, had such share of Series D Preferred Stock been converted
immediately prior to the occurrence of such event. An adjustment made pursuant
to this Section 7(d)(i) shall become effective retroactively (x) in the case
of any such dividend or distribution, to a date immediately following the
close of business on the record date for

                                      -4-

<PAGE>

the determination of holders of Class A Common Stock entitled to receive such
dividend or distribution or (y) in the case of any such subdivision,
combination or reclassification, to the close of business on the day upon
which such corporate action becomes effective.  In the event that the Series E
Convertible Preferred Stock shall be eligible to convert to Class A Common
Stock at an effective price less than $1.25 per share of Series E Preferred
Stock, the conversion rate for the Series D Preferred Stockshall be adjusted
such that the Series D Preferred Stock shall convert at an effective price per
share equal to the greater of (i) $1.125 per share or (ii) the effective price
per share of the Series E Preferred Stock.

                     (ii)   In case the Corporation shall at any time or from
time to time distribute to all holders of shares of its Class A Common Stock
(including any such distribution made in connection with a merger or
consolidation in which the Corporation is the resulting or surviving Person
and the Class A Common Stock is not changed or exchanged) cash, evidences of
indebtedness of the Corporation or another issuer, securities of the
Corporation or another issuer or other assets (excluding dividends or
distributions paid or made to holders of shares of Series D Preferred Stock in
the manner provided in Section 3, and dividends payable in shares of Class A
Common Stock for  which adjustment is made under Section 7(d)(i)) or rights or
warrants to subscribe for or purchase securities of the Corporation (excluding
those distributions in respect of  which an adjustment  is made pursuant to
Section 7(d)(i)), then, the holders of Series D Preferred shall be entitled to
a proportionate share of any such distribution as though they were the holders
of the number of shares of Class A Common Stock of the Corporation into which
their shares of Series D Preferred Stock are convertible as of the record date
fixed for the determination of Class A Common Stock of the Corporation
entitled to receive such distribution.

                     (iii)  In the case the Corporation, at any time or from
time to time, shall take any action affecting its Class A Common Stock similar
to or having an effect similar to any of the actions described in any of
Section 7(d)(i) or Section 7(d)(ii), inclusive, or Section 7(g) (but not
including any action described in any such Section) and the Board of Directors
in good faith determines that it would be equitable in the circumstances to
adjust the one to one conversion rate as a result of such action, then, and in
each such case, such conversion rate shall be adjusted in such manner and at
such time as the Board of Directors of the Corporation in good faith
determines would be equitable in the circumstances (such determination to be
evidenced in a resolution, a certified copy of which shall be mailed to the
holders of the shares of Series D Preferred Stock).

                     (iv)   Notwithstanding anything herein to the contrary,
no adjustment under this Section 7(d) shall be made upon the grant of options
to employees, consultants or directors of the Corporation pursuant to benefit
plans approved by the Board of Directors.

                     (v)    (A)    If the Corporation shall issue, after the
date upon which any shares of Series D Preferred Stock were first issued (the
"Purchase Date"), any Additional Stock (as defined below) without
consideration, the number of shares of Class A Common Stock to be

                                      -5-

<PAGE>

received by the holder of each share of Series D Preferred Stock shall
forthwith be adjusted by multiplying such number of shares of Class A Common
Stock by a fraction, the numerator of which shall be the number of shares of
Class A Common Stock outstanding immediately prior to such issuance  plus the
number of shares of such Additional Stock; and the denominator of which shall
be the number of shares of Class A Common Stock outstanding immediately prior
to such issuance.

                            (B)    In the case of the issuance of Class A
Common Stock for cash, the consideration shall be deemed to be the amount of
cash paid therefore before deducting any reasonable discounts, commissions or
other expenses allowed, paid or incurred by this corporation for any
underwriting or otherwise in connection with the issuance and sale thereof.

                            (C)    In the case of the issuance of the Class A
Common Stock for a consideration in whole or in part other than cash, the
consideration other than cash shall be deemed to be the fair value thereof as
determined by the Board of Directors irrespective of any accounting treatment.

                            (D)    In the case of the issuance (whether on or
after the applicable Purchase Date) of options to purchase or rights to
subscribe for Class A Common Stock, securities by their terms convertible into
or exchangeable for Class A Common Stock or options to purchase or rights to
subscribe for such convertible or exchangeable securities, the following
provisions shall apply for all purposes of this Section 7(d)(v) and Section
7(d)(vi):

                                   (1)    The aggregate maximum number of
shares of Class A Common Stock deliverable upon exercise (assuming the
satisfaction of any conditions to exercisability, including without
limitation, the passage of time, but without taking into account potential
antidilution adjustments) of such options to purchase or rights to subscribe
for Class A Common Stock shall be deemed to have been issued at the time such
options or rights were issued and for a consideration equal to the
consideration (determined in the manner provided in Sections 7(d)(v)(B) and
(d)(v)(C)), if any, received by the Corporation upon the issuance of such
options or rights plus the minimum exercise price provided in such options or
rights (without taking into account potential antidilution adjustments) for
the Class A Common Stock covered thereby.

                                   (2)    The aggregate maximum number of
shares of Class A Common Stock deliverable upon conversion of, or in exchange
(assuming the satisfaction of any conditions to convertibility or
exchangeability, including, without limitation, the passage of time, but
without taking into account potential antidilution adjustments) for, any such
convertible or exchangeable securities or upon the exercise of options to
purchase or rights to subscribe for such convertible or exchangeable
securities and subsequent conversion or exchange thereof shall be deemed to
have been issued at the time such securities were issued or such options or
rights were issued and for a consideration equal to the consideration, if any,
received by the Corporation for any such securities and related options or
rights (excluding any cash received on account of accrued interest or accrued
dividends), plus the minimum additional consideration, if any, to be received
by

                                      -6-

<PAGE>

the Corporation (without taking into account potential antidilution
adjustments) upon the conversion or exchange of such securities or the
exercise of any related options or rights (the consideration in each case to
be determined in the manner provided in Sections 7(d)(v)(B) and (d)(v)(C)).

                                   (3)    In the event of any change in the
number of shares of Class A Common Stock deliverable or in the consideration
payable to the Corporation upon exercise of such options or rights or upon
conversion of or in exchange for such convertible or exchangeable securities,
including, but not limited to, a change resulting from the antidilution
provisions thereof (unless such options or rights or convertible or
exchangeable securities were merely deemed to be included in the numerator and
denominator for purposes of determining the number of shares of Class A Common
Stock outstanding for purposes of Section 7(d)(v)(A)), the number of shares of
Class A Common Stock to be reccived by a holder of one share of  Series D
Preferred Stock, to the extent in any way affected by or computed using such
options, rights or securities, shall be recomputed to reflect such change, but
no further adjustment shall be made for the actual issuance of Class A Common
Stock or any payment of such consideration upon the exercise of any such
options or rights or the conversion or exchange of such securities.

                                   (4)    Upon the expiration of any such
options or rights, the termination of any such rights to convert or exchange
or the expiration of any options or rights related to such convertible or
exchangeable securities, the number of shares of Class A Common Stock to be
received by a holder of one share of the Series D Preferred Stock, to the
extent in any way affected by or computed using such options, rights or
securities or options or rights related to such securities (unless such
options or rights were merely deemed to be included in the numerator and
denominator for purposes of determining the number of shares of Class A Common
Stock outstanding for purposes of Section 7(d)(v)(A)), shall be recomputed to
reflect the issuance of only the number of shares of Class A Common Stock (and
convertible or exchangeable securities that remain in effect) actually issued
upon the exercise of such options or rights, upon the conversion or exchange
of such securities or upon the exercise of the options or rights related to
such securities.

                                   (5)    The number of shares of Class A
Common Stock deemed issued and the consideration deemed paid therefor pursuant
to Sections 7(d)(v)(D)(1) and (2) shall be appropriately adjusted to reflect
any change, termination or expiration of the type described in either Section
7(d)(v)(D)(3) or (4).

                     (vii)  "Additional Stock"  shall mean any shares of Class
A Common Stock issued (or deemed to have been issued pursuant to Section
7(d)(v)(D)) by the Corporation after the Purchase Date other than:

                            (A)    Class A Common Stock issued pursuant to a
transaction described in Section 7(d)(i) hereof;

                                      -7-

<PAGE>

                            (B)    shares of Class A Common Stock issuable or
issued to (i) employees, consultants, directors or vendors (if in transactions
with primarily non-financing purposes) of the Corporation directly or pursuant
to a stock option plan or restricted stock plan approved by the Board of
Directors of the Corporation or (ii) CyNet Holdings, LLC pursuant to the
Subscription Agreement, dated July 22, 1998, as amended on January 3, 2000,
between the Corporation and CyNet Holdings, LLC (the "Subscription Agreement");

                            (C)    shares of Class A Common Stock issuable or
issued in a firm commitment underwritten public offering;

                            (D)    shares of Class A Common Stock issuable or
issued upon conversion of the Series D Preferred Stock or Series E Preferred
Stock or as dividends or distributions on the Series D Preferred Stock;

                            (E)    the issuance of securities in connection
with a bona fide business acquisition of or by the Company, whether by merger,
consolidation, sale of assets, sale or exchange of stock or otherwise;

                            (F)    the issuance of stock, warrants or other
securities or rights to persons or entities with which the Corporation has
business relationships, provided such issuances are for other than primarily
equity financing purposes and are approved by the Board of Directors;

                            (G)    the issuance of shares of Class A Common
Stock solely in exchange for an equal number of shares of outstanding Class B
Common Stock.

       (e)    If the Corporation shall take a record of the holders of its
Class A Common Stock for the purpose of entitling them to receive a dividend
or other distribution, and shall thereafter and before the distribution to
stockholders thereof legally abandon its plan to pay or deliver such dividend
or distribution, then thereafter no adjustment in the conversion rate then in
effect shall be required by reason of the taking of such record.

       (f)    Upon any change in the conversion rate, then, and in each such
case, the Corporation shall within a reasonable period (not to exceed 45 days)
following any of the foregoing transactions deliver to each registered holder
of Series D Preferred Stock a certificate, signed by the President or a Vice
President and by the Treasurer or an Assistant Treasurer or the  Secretary or
an Assistant Secretary of the Corporation, setting forth in reasonable detail
the event requiring the adjustment and the method by which such adjustment was
calculated and specifying the change in the number of shares of Class A Common
Stock to be received  by a holder of one share of Series D Preferred Stock
then in effect following such adjustment.

                                      -8-

<PAGE>

       (g)    In case of (x) any capital reorganization or reclassification or
other change of outstanding shares of Class A Common Stock (other than a
change in par value, or from par value to no par value, or from no par value
to par value), (y) any merger or consolidation of the Corporation with or into
another Person (other than a merger or consolidation in which the Corporation
is the resulting or surviving Person and which does not result in any
reclassification or change of outstanding Class A Common Stock) or (z) any
sale or other disposition to another Person of all or substantially all of the
assets of the Corporation (any of the foregoing, a "Transaction"), the
Corporation, or such successor or purchasing Person, as the case may be, shall
execute and deliver to each holder of Series D Preferred Stock at least
fifteen (15) Business Days prior to effecting any of the foregoing
Transactions a certificate that the holder of each share of Series D Preferred
Stock then outstanding shall have the right thereafter to convert such share
of Series D Preferred Stock into the kind and amount of shares of stock or
other securities (of the Corporation or another issuer) or property or cash
receivable upon such Transaction by a holder of the number of shares of Class
A Common Stock into which such  share of Series D Preferred Stock could have
been converted immediately prior to such Transaction. Such certificate shall
provide for adjustments which shall be as nearly equivalent as may be
practicable to the adjustments provided for in this Section 7.  If, in the
case of any such Transaction, the stock, other securities, cash or property
receivable thereupon by a holder of Class A Common Stock includes shares of
stock or other securities of a Person other than the successor or purchasing
Person and other than the Corporation, which controls or is controlled by the
successor or purchasing Person or which, in connection with such Transaction,
issues stock, securities, other property or cash to holders of Class A Common
Stock, then such certificate also shall be executed by such Person, and such
Person shall, in such certificate, specifically acknowledge the obligations of
such  successor or purchasing Person and acknowledge its obligations to issue
such stock, securities, other property or cash to the holders of Series D
Preferred Stock upon conversion of the shares of Series D Preferred Stock as
provided above. The provisions of this Section 7(g) and any equivalent thereof
in any such certificate similarly shall apply to successive Transactions.

       (h)    In case at any time or from time to time:

              (w)    the Corporation shall declare a dividend (or any other
distribution) on its shares of Class A Common Stock;

              (x)    the Corporation shall authorize the granting to the
holders of its Class A Common Stock of rights or warrants to subscribe for or
purchase any shares of stock of any class or of any other rights or warrants
other than as issued to the holder of the Series D Preferred Stock;

              (y)    there shall be any reorganization or reclassification of
the Class A Common Stock; or

              (z)    there shall occur a Liquidation, merger or sale of assets
of the Corporation;

                                      -9-

<PAGE>

then the Corporation shall mail to each holder of shares of Series D Preferred
Stock at such holder's address as it appears on the transfer books of the
Corporation, as promptly as possible but in any event at least ten (10) days
prior to the applicable date hereinafter specified, a notice stating (A) the
date on which a record is to be taken for the purpose of such dividend,
distribution or rights or warrants or, if a record is not to be taken, the
date as of which the holders of Class A Common Stock of record to be entitled
to such dividend, distribution or rights are to be determined, or (B) the date
on  which such reclassification or Liquidation, merger or sale of assets is
expected to become effective; provided that in the case of any event to which
Section 7(g) applies, the Corporation shall give at least ten (10) Business
Days' prior written notice as aforesaid. Such notice also shall specify the
date as of which it is expected that holders of Class A Common Stock of record
shall be entitled to exchange their Class A Common Stock for shares of stock
or other securities or property or cash deliverable upon such reclassification
or Liquidation, sale of assets or merger.

       (i)    The Corporation shall at all times reserve and keep available
for issuance upon the conversion of the Series D Preferred Stock, such number
of its authorized but unissued shares of Class A Common Stock as will from
time to time be sufficient to permit the conversion of all outstanding shares
of Series D Preferred Stock, and shall take all action required to increase
the authorized number of shares of Class A Common Stock if at any time there
shall be insufficient authorized but unissued  shares of Class A Common Stock
to permit such reservation or to permit the conversion of all outstanding
shares of Series D Preferred Stock.

       (j)    The issuance or delivery of certificates for Class A Common
Stock upon the conversion of shares of Series D Preferred Stock shall be made
without charge to the converting holder of shares of Series D Preferred Stock
for such certificates or for any tax in respect of the issuance or delivery of
such certificates or the securities represented thereby, and such certificates
shall be issued or delivered in the respective names of, or (subject to
compliance with the applicable provisions of federal and state securities
laws) in such names as may be directed by, the holders of the shares of Series
D Preferred Stock converted; PROVIDED, HOWEVER, that the Corporation shall not
be required to pay any tax which may be payable in respect of any transfer
involved in the issuance and delivery of any such certificate in a name other
than that of the holder of the shares of Series D Preferred Stock converted,
and the Corporation shall not be required to issue or deliver such certificate
unless or until the Person or Persons requesting the issuance or delivery
thereof shall have paid to the Corporation the amount of such tax or shall
have established to the reasonable satisfaction of the Corporation that such
tax has been paid.

       8.     PROTECTIVE PROVISIONS. So long as shares of Series D Preferred
Stock are outstanding, the Corporation shall not without first obtaining the
approval (by vote or written consent, as provided by law) of the holders of at
least sixty-six and two thirds percent (66 2/3rd %) of the then outstanding
shares of Series D Preferred Stock:

              (a)    sell, convey or otherwise dispose of all or substantially
all of its property or business or merge into or consolidate with any other
corporation (other than a wholly-owned

                                      -10-

<PAGE>

subsidiary corporation) or effect any transaction or series of related
transactions in which more than (50%) of the voting power of the Corporation
is disposed of;

              (b)    alter or change the rights, preferences or privileges of
the shares of Series D Preferred Stock so as to affect adversely the shares;

              (c)    increase or decrease the total number of authorized
shares of Series D Preferred Stock (other than by redemption or conversion or
in connection with a stock split);

              (d)    authorize or issue, or obligate itself to issue, any
other equity security,  including any other security convertible into or
exercisable for any equity security, having a preference over, or being on a
parity with, the Series D Preferred Stock with respect to liquidation or
redemption;

              (e)    declare or pay dividends on its Class A Common Stock;

              (f)    redeem, purchase or otherwise acquire (or pay into or set
aside for a sinking fund for such purpose) any share or shares of preferred
stock or common stock of the Corporation; PROVIDED, HOWEVER, that this
restriction shall not apply to the repurchase of shares of Class A Common
Stock or Class B Common Stock from employees, officers, directors, consultants
or other persons performing services for the Corporation or any subsidiary
pursuant to agreements under which the Corporation has the option to
repurchase such shares at cost upon the occurrence of certain events, such as
the termination of employment; or

              (g) increase the authorized number of directors of the
Corporation to a number greater than nine (9).

       9.     CERTAIN REMEDIES.  Any registered holder of Series D Preferred
Stock shall be entitled to an injunction or injunctions to prevent breaches of
the provisions of this Statement of Designations and to enforce specifically
the terms and provisions of this Statement of Designations in any court of the
United States or any state thereof having jurisdiction, this being in addition
to any other remedy to which such holder may be entitled at law or in equity.

       10.    BUSINESS DAY. If any payment shall be required by the terms
hereof to be made on a day that is not a Business Day, such payment shall be
made on the immediately succeeding Business Day.

       11.    DEFINITIONS.  As used in this Statement of Designations, the
following terms shall have the following meanings (with terms defined in the
singular having comparable meanings when used in the plural and vice versa),
unless the context otherwise requires:

                                      -11-

<PAGE>

       "Affiliate" shall mean, with respect to any Person, any other Person
who is an "affiliate" as defined in Rule 12b-2 of the General Rules and
Regulations under the Exchange Act.

       "Articles of Incorporation" shall mean the Articles of Incorporation of
the Corporation as filed with the Secretary of State of the State of Texas.

       "Board of Directors" means the Board of Directors of the Corporation.

       "Business Day" means any day except a Saturday, a Sunday, or other day
on which commercial banks in the State of Texas are authorized or required by
law or executive order to close.

       "Capital Stock" means, with respect to any Person, any and all shares,
interests, participations, rights in, or other equivalents  (however
designated and whether voting or non-voting) of, such Person's capital stock
and any and all rights, warrants or options exchangeable for or convertible
into such capital stock (but excluding any debt security that is exchangeable
for or convertible into such capital stock).

       "Commission" means the Securities and Exchange Commission or any
similar agency then having jurisdiction to enforce the Securities Act.

       "Class A Common Stock" shall have the meaning ascribed to it in Section
2 hereof.

       "Corporation" shall have the meaning ascribed to it in the first
paragraph of this Resolution.

       "Exchange Act" means the Securities Exchange Act of 1934, and the rules
and regulations of the Commission promulgated thereunder.

       "Junior Stock" shall have the meaning ascribed to it in Section 2
hereof.

       "Liquidation" shall mean the voluntary or involuntary liquidation under
applicable bankruptcy or reorganization legislation, dissolution or winding up
of the Corporation.  For purposes of Section 4, "Liquidation" shall be deemed
to be occasioned by, or to include (unless the holders of at least a majority
of the them outstanding shares of Series D Preferred Stock shall determine
otherwise), (A) the acquisition of the Corporation by another entity by means
of any transaction or series of related transactions (including, without
limitation, any reorganization, merger or consolidation) that results in the
transfer of fifty percent (50%) or more of the outstanding voting power of the
Corporation; or (B) a sale of all or substantially all of the assets of the
Corporation.

       "Liquidation Amount" shall have the meaning ascribed to it in Section
4(a) hereof.

       "Liquidation Preference" shall have the meaning ascribed to it in
Section 4(a) hereof.

                                      -12-

<PAGE>

        "Person" means any individual, firm, corporation, partnership, limited
liability company, trust, incorporated or unincorporated  association, joint
venture, joint stock company, governmental body or other entity of any kind.

       "Securities Act" means the Securities Act of 1933, as amended, and the
rules and regulations of the Commission promulgated thereunder.

       "Series D Preferred Stock" shall have the meaning ascribed to it in
Section 1 hereof.

       "Statement of Designations" shall mean this statement of the Powers,
Designations, Preferences and Rights of the Series D Redeemable Convertible
Preferred Stock, no par value, adopted by the Board of Directors and filed
with the Secretary of State of State of Texas.

       "Transaction" shall have the meaning ascribed to it in Section 7(g)
hereof.

       IN WITNESS WHEREOF, the undersigned authorized officer of the Company
has executed and subscribed this statement and does affirm the foregoing as
true this 30th day of May, 2000.

                            CYNET, INC.

                            By: /s/ Bernard B. Beale
                               -----------------------------------------------
                                   Bernard B. Beale, Executive Vice President

                            By: /s/ Samuel C. Beale
                               -----------------------------------------------
                                   Samuel C. Beale, Secretary

                                      -13-

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