Document:

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                                                                    EXHIBIT 4.4

      [FORM OF 1998 STOCK OPTION PLAN RIGHTS TERMINATION LETTER AGREEMENT
            OF DIRECTORS TO CANCEL OPTIONS DATED FEBRUARY 4, 2000]

February 4, 2000

[Director]
GlobalSCAPE, Inc.

     Re:  GlobalSCAPE, Inc. 1998 Stock Option Plan (the "Stock Option Plan")

Dear [Director]:

     On April 30, 1999 you and GlobalSCAPE, Inc. ("GlobalSCAPE") signed a letter
under which GlobalSCAPE granted you an option to purchase 1000 shares of
GlobalSCAPE common stock for $0.10 (ten cents) per share with the Option vesting
on January 1, 1999; and on July 1, 1999, you and GlobalSCAPE signed a letter
under which GlobalSCAPE granted you an option to purchase 1000 shares of
GlobalSCAPE common stock for $0.10 (ten cents) per share with the option vesting
on May 13, 1999 (the April 30, 1999 grant and July 1, 1999 grant referred to
collectively as the "Option").

     On January 18, 2000, the Board of Directors of GlobalSCAPE and American
Telesource International, Inc. ("ATSI") approved a distribution and offering of
shares of GlobalSCAPE common Stock (the "Financing Plan").

     To resolve various issues arising in connection with the Stock Option Plan
and to facilitate the Financing Plan, the Board of Directors of GlobalSCAPE has
resolved to cancel the Option as well as certain options issued to other
directors and employees of GlobalSCAPE. We ask you to acknowledge that you
agree that it is in the best interest of GlobalSCAPE, and therefore your best
interest as an option holder, to cancel the Option, and that you will not make
any claim against GlobalSCAPE or ATSI with respect to the cancellation of the
Option.

     Please sign this letter where indicated below and return it to me to
acknowledge your agreement.

                                        Sincerely,

                                        Secretary
                                        H. Douglas Saathoff

Agreed:

-----------------------------
       [Director]

       Date:
            -----------------<PAGE>

                                                                    EXHIBIT 4.5

                                 CONFIDENTIAL

February 4, 2000

[Director]

GlobalSCAPE, Inc.

     Re:  GlobalSCAPE, Inc. 1998 Stock Option Plan

Dear Director:

On January 1, 1998 you and GlobalSCAPE, Inc. ("GlobalSCAPE") signed a letter
under which GlobalSCAPE granted you an option to purchase 16,190 shares of
GlobalSCAPE common stock for $0.10 (ten cents) per share with the option vesting
on January 1, 1999; on April 30, 1999 you and GlobalSCAPE signed a letter under
which GlobalSCAPE granted you an option to purchase 1000 shares of GlobalSCAPE
common stock for $0.10 (ten cents) per share with the Option vesting on January
1, 1999; and on July 1, 1999, you and GlobalSCAPE signed a letter under which
GlobalSCAPE granted you an option to purchase 1000 shares of GlobalSCAPE common
stock for $0.10 (ten cents) per share with the option vesting on May 13, 1999
(the January 1, 1998 grant, April 30, 1999 grant and July 1, 1999 grant referred
to collectively as the "Option").

As you know, GlobalSCAPE would like to offer shares of its common stock to the
public to raise money to finance its future growth.  If completed, this
transaction will benefit you since it will create a market for your GlobalSCAPE
shares when you exercise your Option.

We have to plan and budget carefully in order to complete all the steps
necessary to close the offering, and the steps we take depend on whether there
are any shareholders of GlobalSCAPE other than ATSI.  If you were to exercise
any part of your Option during time leading up to the offering it would be
difficult for us to revise our plans and still close the offering within the
time frame that we believe is desirable.  Therefore, to facilitate this
offering, GlobalSCAPE would like you to agree that you will not exercise your
Option until the offering is complete. We cannot guaranty [sic] that the
offering will be complete by a certain date, but we anticipate that it will be
complete by August 31, 2000.

If you agree not to exercise your option as described in this letter, please
sign below where indicated and return a signed copy of this letter to me.  If we
have not completed the offering by August 31, 2000, or if we decide not to
proceed with the offering prior to that time, then you will be free to exercise
your option.  Also, if your employment is terminated four months or more prior
to the completion of the offering, and you and the Board of Directors of
GlobalSCAPE have not agreed to extend the time that you have to exercise your
Option, then you will be free to exercise your Option on the last day of the
four month period following the termination of your employment.

                                  Sincerely,
<PAGE>

                                  H. Douglas Saathoff
                                  Secretary

AGREED:

________________________
[Director]

Date:____________<PAGE>
                                                                     EXHIBIT 4.6

                                 CONFIDENTIAL

February 4, 2000

[Director]
American TeleSource International, Inc.

Re:  GlobalSCAPE, Inc. 1998 Stock Option Plan (the "Stock Option Plan")

Dear [Director]:

     On January 1, 1998 you and GlobalSCAPE, Inc. ("GlobalSCAPE") signed a
letter under which GlobalSCAPE granted you an option to purchase 16,190 shares
of GlobalSCAPE common stock for $0.10 (ten cents) per share with the option
vesting on January 1, 1999; on April 30, 1999 you and GlobalSCAPE signed a
letter under which GlobalSCAPE granted you an option to purchase 1000 shares of
GlobalSCAPE common stock for $0.10 (ten cents) per share with the Option vesting
on January 1, 1999; and on July 1, 1999, you and GlobalSCAPE signed a letter
under which GlobalSCAPE granted you an option to purchase 1000 shares of
GlobalSCAPE common stock for $0.10 (ten cents) per share with the option vesting
on May 13, 1999 (the January 1, 1998 grant, April 30, 1999 grant and July 1,
1999 grant referred to collectively as the "Option").

     Section 9 of the letter and Section 5 of the Plan contain provisions
requiring adjustment of your Option under circumstances described in those
provisions. As you know, the Boards of Directors of GlobalSCAPE and ATSI have
approved a financing plan as described in more detail on the attached Exhibit A
(the "Financing Plan"). To create the number of common shares needed to
establish a viable public market as contemplated by this plan, GlobalSCAPE will
either have to issue substantially more shares than the 1.7 million currently
outstanding, or will have to declare a stock split. The issuance of additional
shares or a stock split, taken by itself, might give rise to a requirement that
the number of shares subject to your Option be adjusted. However, any new
issuance or stock split that occurs would be part of the Financing Plan
described on Exhibit A which, as a whole, is not the type of event that should
             ---------
give rise to an adjustment under the letter and the Plan.

     As a member of the management team of GlobalSCAPE, you have participated in
discussions regarding the means of financing GlobalSCAPE's growth, both in
general and with respect to the Financing Plan, specifically. You have also
participated in discussions regarding the best means of balancing ATSI's
interest as sole shareholder of GlobalSCAPE against the interest of option
holders under the Stock Option Plan. Although there have been differences of
opinion between the parties to these discussions, a consensus has been reached
that the best course of action currently available is to proceed with the
Financing Plan.
<PAGE>

     We ask you to acknowledge that you agree that it is in the best interest of
GlobalSCAPE, and therefore your best interest as an option holder, to proceed
with the Financing Plan. We also ask you to facilitate the Financing Plan by
agreeing that you will not claim any right of adjustment in the number of common
shares underlying your Option under the terms of the letter and the Plan as a
result of the consummation of the Financing Plan.

     Please sign this letter where indicated below and return it to me to
acknowledge your agreement on these issues. This letter constitutes the final
and complete agreement of the parties with respect to its subject matter, and
supercedes any prior agreements, discussions or understandings, written or oral.

                              Sincerely,

                              H. Douglas Saathoff
                              Secretary

Agreed:

_______________________
[Director]

Date:_________<PAGE>

                                                                     EXHIBIT 4.7

                                 CONFIDENTIAL

February 8, 2000

[Employee/Consultant]
GlobalSCAPE, Inc.

     Re:  GlobalSCAPE, Inc. 1998 Stock Option Plan

Dear [Employee/Consultant]:

  On _____________, 1999 you and GlobalSCAPE, Inc. signed a letter under which
GlobalSCAPE granted you an option to purchase [_______] shares of GlobalSCAPE
for $0.10 per share, with the Option vesting over a three year period (the
"Option").

  GlobalSCAPE would like to offer shares of its common stock to the public to
raise money to finance its future growth. I have described to you the steps
involved in completing the offering. To facilitate this transaction GlobalSCAPE
would like to satisfy its obligations under the Option at this time. Therefore,
in exchange for your agreement that GlobalSCAPE may cancel your Option,
GlobalSCAPE will pay you $1000 now, and agree to issue you [_______] shares of
GlobalSCAPE common stock at the time the offering is closed.

  GlobalSCAPE has two reasons for making this offer.

  First, we have to plan and budget carefully in order to complete all the steps
necessary to close the offering. The steps we take depend on whether there are
any shareholders of GlobalSCAPE other than American TeleSource International,
Inc. If you were to exercise any part of your Option during the time leading up
to the offering it would be difficult for us to revise our plans and still close
the offering within the time frame that we believe is desirable.

  Second, as I described to you, one step of the financing plan will be to
increase the number of shares of GlobalSCAPE common stock so that there will be
enough shares outstanding to create a viable public market. Taken by itself, the
change in the number of shares might trigger an adjustment to your Option under
the Plan and the letter granting your Option (See Section 5 of the Plan, and
                                                  ---------
Section 9 of the letter). Since the change in the number of shares is part of a
---------
single plan of financing, GlobalSCAPE does not believe an adjustment is
required. However, it is important that there never be any ambiguity on the
                                                       ---
basic issue of who is entitled to how many shares of GlobalSCAPE. If you accept
our offer and your Option is cancelled, these provisions (and all the other
provisions of the Plan and the letter) are no longer in effect and we will not
have to worry that someone will make a claim for an adjustment at some point in
the future.

  We believe this transaction is in GlobalSCAPE's best interest, and in your
personal interest as well since it will result in a public market for
GlobalSCAPE's shares.
<PAGE>

  If you agree to the cancellation of your Option as described in this letter,
please sign below where indicated and return a signed copy of this letter to me.
If we have not completed the offering by August 31, 2000 (or if we decide not to
proceed with the offering prior to that time) then you can keep the $1000, and
your Option will be reinstated as if you have not signed this letter.

  We must stress again that this proposed transaction is confidential at this
time. If you discuss this transaction prior to the time that a public
announcement is made, you may subject yourself and others to serious liability.
By signing this letter, you agree that you will not discuss the proposed
transaction with anyone until announcement is made.

  This letter is the final and complete agreement between you and GlobalSCAPE
with respect to your Option, and replaces any prior agreements, discussions or
understandings, written or oral, between you and GlobalSCAPE.

                                   Sincerely,

                                   GlobalSCAPE, Inc.

                                   By: Sandra Poole-Christal, President

Agreed:

__________________________
Name: [Employee/Consultant]

Date:_______________

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