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                                                                     EXHIBIT 4.1

                             SHAREHOLDERS AGREEMENT


         THIS SHAREHOLDERS AGREEMENT (this "Agreement") is made and entered into
as of the 4th day of November, 1999, by and among WT Technologies, Inc., a
Georgia corporation (the "Corporation"), BCD Technology S.A., a corporation
organized under the laws of Luxembourg ("BCD") (who is a party solely for
purposes of Sections 2(c) and 5 hereof) and the following parties, each of which
shall be a "Shareholder," and collectively, the "Shareholders": (i) Christopher
M. Brittin, an individual resident of Virginia ("Brittin"); (ii) Susan R.
Hopley, an individual resident of Virginia ("Hopley"); (iii) Gary D. Smith and
Jean H. Smith, as Trustees of the Gary D. Smith and Jean H. Smith Trust
("Smith"); and (iv) F. Gilmer Siler, an individual resident of Virginia
("Siler").

                                 R E C I T A L S

         WHEREAS, pursuant to the terms of that certain Contribution Agreement,
dated as of the date hereof (the "Contribution Agreement"), between the
Corporation, the Shareholders and Arthur H. Ltd d/b/a International Software
Products ("ISP"), the Shareholders are transferring all of the issued and
outstanding shares of capital stock of ISP to the Corporation in consideration
for, among other things, shares of common stock of the Corporation;

         WHEREAS, the Corporation and the Shareholders desire to place certain
restrictions on the transferability of the Shares (as defined below) now or
hereafter owned by them, and address certain other matters with respect to the
Shares and the Corporation, all as set forth herein; and

         WHEREAS, capitalized terms used but not otherwise defined herein shall
have the meanings ascribed to such terms in the Contribution Agreement;

         NOW, THEREFORE, in consideration of the mutual promises of the parties
made in this Agreement and for other good and valuable consideration, the
receipt of which is hereby acknowledged, the parties, intending to be legally
bound, agree as follows:

                                A G R E E M E N T

         1.       Certain Defined Terms. As used in this Agreement, the
following terms shall have the following meanings:

                  (a)      "Affiliate" means a Person or Persons (each as
defined below) who: (i) directly or indirectly, through one or more
intermediaries, controls, is controlled by, or is under common control with the
Person(s) in question, or (ii) is an officer, director, or shareholder of the
Person(s) in question. The term "control," as used in the immediately preceding
sentence, means,


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with respect to a Person that is a corporation, the right to the exercise,
directly or indirectly, of more than 50% of the voting rights attributable to
the shares of such controlled corporation and, with respect to a Person that is
not a corporation, the possession, directly or indirectly, of the power to
direct or cause the direction of the management or policies of such controlled
Person.

                  (b)      "Person" means an individual, partnership, limited
liability company, joint venture, association, corporation, trust or any other
legal entity.

                  (c)      "Share" or "Shares" shall mean and include shares of
the Corporation's common stock, par value $.01 per share, and all other
securities of the Corporation which may be issued in exchange for or in respect
of such shares (whether by way of stock split, stock dividend, combination,
reclassification or any other means);

                  (d)      "Transfer" shall mean to transfer, sell, assign,
pledge, hypothecate, give, create a security interest in or lien on, place in
trust (voting or otherwise), assign or in any way encumber or dispose of
directly or indirectly and whether or not by operation of law or for value.

         2.       Transfers by Shareholders.

                  (a)      Transfers Generally. Except as provided in this
Section 2, no Shareholder shall have the right to Transfer all or any portion of
his or her Shares other than to an existing shareholder of the Corporation
without the prior written consent of the Board of Directors of the Corporation.

                  (b)      Redemption.

                           (1) (i) Upon the death or permanent physical or
         mental disability of Brittin, Hopley, Siler or Smith (each a
         "Redeemable Shareholder"), or (ii) in the event that a Redeemable
         Shareholder employed by WorldTravel Technologies, L.L.C. ("WTT") or
         ISP, as applicable (or any successor or Affiliate entities thereof),
         shall no longer be employed by WTT or ISP (or any successor or
         Affiliate entities thereof) for any reason (which, for the purpose of
         this Section 2(b), shall be interpreted to include a party invoking any
         notice of termination provision in an employment agreement, regardless
         of the fact that actual employment with WTT or ISP (or any successor or
         Affiliate entities thereof) has not yet ceased), the Corporation shall
         have the right to redeem, or shall have the right to cause a third
         party to purchase, and (if the Corporation exercises such right) the
         Redeemable Shareholder shall sell, all of the Shares of such Redeemable
         Shareholder. Each of the events described in subsections (i) and (ii)
         above shall, for the purposes of this Agreement, be deemed a
         "Separation Event." For the purpose of clause (ii) above, performing
         consulting services as an independent contractor and/or serving on the
         Board of Directors

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         of the Corporation or WTT or ISP (or any successor or Affiliate
         entities thereof) shall not, singly or together, constitute employment.
         For the purposes of this Agreement, a permanent physical or mental
         disability of a Redeemable Shareholder shall be deemed to have occurred
         at the end of a period of one hundred and eighty (180) consecutive days
         during which the Redeemable Shareholder has been unable to perform the
         customary and usual duties for which he or she was employed. Any such
         redemption or purchase shall be consummated within sixty (60) days
         after the date of the Separation Event; provided, however, in the event
         of a purchase or redemption occasioned by a party invoking any notice
         of termination provision in an employment agreement, the date specified
         above shall be sixty (60) days after the date through which the
         employee is contractually bound to be employed by the Corporation.

                           (2) The redemption price (the "Redemption Price") for
         the Shares of a Redeemable Shareholder redeemed or purchased pursuant
         to this Section 2(b) shall be equal to $17.25 per Share, as adjusted to
         reflect securities of the Corporation issued in respect of such Shares
         (whether by way of stock split, stock dividend, combination,
         reclassification or the like); provided, however, that if (i) the
         Separation Event giving rise to a right of redemption or purchase
         pursuant to this Section 2(b) is the termination of a Redeemable
         Shareholder's employment with WTT or ISP (or any successor of Affiliate
         entities thereof) by WTT or ISP (or any successor or Affiliate entities
         thereof) without "good cause" or by the Redeemable Shareholder with
         "good reason" and (ii) the Corporation files a registration statement
         with the Securities and Exchange Commission with respect to an initial
         public offering (an "IPO") of its securities (a "Registration
         Statement") within the second (2nd) anniversary following such
         Separation Event (provided, however, that with respect to a redemption
         or purchase following a termination by WTT or ISP (or any successor or
         Affiliate entities thereof) without "good cause" or by the Redeemable
         Shareholder with "good reason and occasioned by a party invoking any
         notice of termination provision in an employment agreement, for the
         purposes of this Section 2(b)(2), the term "Separation Event" shall be
         deemed to be the last date on which the employee is employed by the
         Company and not the date of notice of termination), such Redeemable
         Shareholder shall be entitled to purchase from the Corporation up to
         the number of Shares held by the Redeemable Shareholder at the time of
         the redemption or purchase by the Corporation in this Section 2(b) (the
         "Buyback Right," and the number of Shares purchased pursuant to the
         Buyback Right being referred to as the "Buyback Shares") for a purchase
         price equal to the number of Buyback Shares multiplied by the
         Redemption Price. The Corporation shall notify such Redeemable
         Shareholder of its intention to commence an IPO at least thirty (30)
         days prior to the anticipated filing date of a Registration Statement.
         The Corporation will disclose to such Redeemable Shareholder any
         estimates of the range of the public offering price known by it at the
         time of such notification. The Redeemable Shareholder may exercise the
         Buyback Right by delivering

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         to the Corporation a written notice of exercise no later than fifteen
         (15) days following receipt by such Redeemable Shareholder of the
         Corporation's notice of its intention to commence an IPO. The closing
         of the purchase of the Buyback Shares shall occur within five (5) days
         following receipt by the Corporation of such Redeemable Shareholder's
         notice of its intention to exercise the Buyback Right. The
         consideration payable at the closing of the purchase of the Buyback
         Shares shall be in the form of cash and/or cancellation of a Redemption
         Note (if unpaid and outstanding at the time of such closing).

         Notwithstanding the foregoing, if a Redeemable Shareholder provides an
         Exercise Notice (as defined in the Put Agreement, dated as of even date
         herewith, between the Corporation and the Shareholders) to the
         Corporation, such Redeemable Shareholder shall not be entitled to
         receive the Redemption Price.

         For purposes hereof, "good cause" means (i) conviction of any act of
         fraud or material act of dishonesty (whether or not in connection with
         the Corporation's Business as hereinafter defined) punishable by
         incarceration for six (6) months or longer or by payment of a monetary
         penalty in excess of $499.00, (ii) competing with the Business of the
         Corporation either directly or indirectly, (iii) the material breach of
         any provisions of an employment agreement (if one exists) between a
         Redeemable Shareholder and the Corporation or ISP, as applicable, (iv)
         the failure to comply with the written directives of the Corporation,
         or (v) the material failure to discharge one's duty of loyalty to the
         Corporation; "Business" means the business of designing and supplying
         computer and information technology, software, processing and
         information management in the travel service industry; and "good
         reason" means (i) the Redeemable Shareholder's normal place of business
         is moved beyond a twenty (20) mile radius of McLean, Virginia, (ii) an
         officer of the Corporation or ISP, as applicable, lower than the Chief
         Operating Officer is assigned to be the Redeemable Shareholder's
         supervisor or (iii) the Redeemable Shareholder is assigned, as part of
         his regular responsibilities and other than on a temporary basis, to
         duties which are of a menial nature or are intended to demean the
         Redeemable Shareholder.

                           (3) At the closing of a redemption or purchase of a
         Redeemable Shareholder's Shares pursuant to this Section 2(b), the
         Corporation or its assignee shall pay to the Redeemable Shareholder the
         Redemption Price in the following manner: one-third (1/3) by cashier's
         check and two-thirds (2/3) pursuant to a promissory note (the
         "Redemption Note"). Fifty percent (50%) of the outstanding principal
         and interest due under the Redemption Note shall be payable on the
         first (1st) anniversary of the closing and the balance thereof shall be
         payable on the second (2nd) anniversary of the closing. The Redemption
         Note shall be reasonably satisfactory to the Corporation and the
         Redeemable Shareholder and shall bear simple interest at an annualized
         interest rate equal to the Prime

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         Rate as published in the Wall Street Journal on the date of issuance of
         the Redemption Note.

                           (4) In the event that the exchange of Target Shares
         for Transferee Shares contemplated by the Contribution Agreement shall
         fail to qualify as a "Section 351 exchange" within the meaning of
         Section 351 of the Internal Revenue Code of 1986, as amended (the
         "Code"), and pursuant to a "final determination" such exchange is
         determined to be a taxable exchange, then the Corporation shall redeem,
         on a pro rata basis, such number of Shares of the Shareholders as shall
         be necessary to permit the Shareholders to satisfy their related
         federal income tax liabilities solely attributable to such taxable
         exchange, calculating such liability using the maximum federal income
         tax rate on long-term capital gains under the Code. Each Share redeemed
         pursuant to this Section 2(b)(4) shall be valued at the Redemption
         Price. Notwithstanding the foregoing, the Corporation shall have no
         obligation to redeem any Shares of the Shareholders pursuant to this
         Section 2(b)(4) following the effective date of an IPO.

                  (c)      BCD Sale; Obtaining Offer. If BCD proposes to sell
all or substantially all of its Shares in any single transaction or related
series of transactions and other than to an Affiliate, then BCD shall cause the
proposed purchaser to deliver to the Shareholders an offer to purchase all of
their Shares on the same relative terms and conditions as offered to BCD for its
Shares. The Shareholders may accept such additional offer by delivering their
written acceptances to the proposed purchaser within thirty (30) days from the
receipt of such offer from the proposed purchaser. The closing of any sale
pursuant to this Section 2(c) shall occur simultaneously with the sale of BCD's
Shares to said purchaser.

                  (d)      Mandatory Sale. If shareholders of the Corporation
holding an aggregate of sixty percent (60%) or more of the Shares (the "Selling
Shareholders") agree to sell their interests in the Corporation in any single
transaction or related series of transactions other than to an Affiliate, and
the proposed purchaser desires to acquire all the Shares in the Corporation,
then all of the Shareholders shall sell their Shares to said proposed purchaser
on the same relative terms and conditions contained in the offer delivered to
the Selling Shareholders.

                  (e)      Permitted Transfers by Brittin, Hopley, Smith and
Siler. Each of the Shareholders may transfer their Shares to any one or more of
their spouse, siblings, children or other lineal descendants, parents or lineal
ancestors, or any trust created solely for the benefit of any one or more of
such individuals; provided, however, that all such transferees shall, prior to
such transfer, execute an attorney-in-fact (in form and substance reasonably
satisfactory to the Corporation) in favor of the transferor for the purpose of
exercising all rights, receiving notices and taking any action with respect to
the Shares.

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         3.       Conditions of Transfer. No Transfer of Shares, other than
permitted transfers under Section 2(e), will be effectuated by the Corporation
until the following conditions have been satisfied:

                  (a)      The written consent of the Board of Directors must
have been obtained;

                  (b)      the transferee must have executed a written
agreement, in form and substance satisfactory to the Board of Directors, to
assume all of the duties and obligations of the transferor Shareholder under
this Agreement and to be bound by and subject to all of the terms and conditions
of this Agreement;

                  (c)      the transferee or transferor must have paid the
expenses incurred by the Corporation in connection with the Transfer;

                  (d)      upon request of the Corporation, the transferor must
have delivered to the Corporation a written opinion of counsel reasonably
satisfactory to the Board of Directors (which opinion shall be obtained at the
expense of the transferor) that such Transfer will not result in a violation of
applicable law including the Securities Act of 1933, as amended (the "Securities
Act"), or any applicable state securities laws, or of this Agreement;

                  (e)      the transferor must have executed a written
instrument of transfer of Shares in form and substance satisfactory to the Board
of Directors; and

                  (f)      the transferor and the transferee must have executed
a written agreement, in form and substance satisfactory to the Board of
Directors, to indemnify and hold the Corporation and all shareholders of the
Corporation harmless from and against any loss or liability arising out of the
Transfer.

         4.       Term. This Agreement shall terminate immediately upon the
occurrence of any of the following events:

                  (a)      The bankruptcy, receivership, insolvency or
dissolution of the Corporation;

                  (b)      The unanimous written agreement of the Shareholders
and consent of the Corporation;

                  (c)      The cessation of the Corporation's business; or

                  (d)      The effective date of an IPO.

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         5.       Board Seat. For so long as Hopley remains employed by WTT, the
Corporation agrees that Hopley shall be entitled to serve as a member of the
Board of Directors of the Corporation and BCD agrees to vote its Shares during
such time in favor of such election. Notwithstanding the foregoing, in the event
that the facilitating broker/dealer or lead managing underwriter retained by the
Corporation in connection with an IPO advises the Corporation that Hopley's
right to serve as a member of the Board of Directors of the Corporation would
adversely affect such offering, then Hopley shall no longer have such right and
BCD shall no longer be obligated to vote in favor of such election.

         6.       Piggy-Back Registration Rights. If the Corporation allows the
inclusion of any Shares held by a shareholder in a public offering registered
under the Securities Act, the Shareholders shall be entitled to include their
Shares in such offering on a pro rata basis, provided that the aggregate amount
to be included shall be at the discretion of the Corporation and the managing
underwriter. In order to participate in the offering, each Shareholder must
provide such information and execute such agreements and other documents as may
be required of selling shareholders in the offering by the Corporation and the
managing underwriter.

         7.       Specific Enforcement. Each Shareholder expressly agrees that
the Shares cannot be purchased or sold in the public market and that for these
reasons, among others, the Corporation and the other Shareholders would be
irreparably damaged if this Agreement is not specifically enforced. Upon a
breach or threatened breach of the terms, covenants and/or conditions of this
Agreement by any Shareholder, the Corporation shall, in addition to all other
remedies, be entitled to a temporary or permanent injunction, and/or a decree
for specific performance, in accordance with the provisions hereof, without the
necessity of proof of actual damages or the posting of a bond or other security.
Upon a breach or threatened breach of Section 5 by BCD, Hopley shall, in
addition to all other remedies, be entitled to a temporary or permanent
injunction, and/or a decree for specific performance, in accordance with the
provisions hereof, without the necessity of proof of actual damages or the
posting of a bond or other security.

         8.       Legend.

                  (a)      During the term of this Agreement, each certificate
evidencing any of the Shares now owned or hereafter acquired by the Shareholders
shall bear a legend substantially as follows:

         "Any sale, assignment, transfer or other disposition of the shares
         represented by this certificate is restricted by, and subject to, the
         terms and provisions of a certain Shareholders Agreement dated as of
         November 3, 1999. A copy of said Agreement is on file with the
         Secretary of the Corporation."

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                  (b)      The undersigned understands and acknowledges that the
Shares have not been registered for sale under the Securities Act or any
applicable state securities laws and that the Shares will be issued and sold by
the Corporation in reliance upon exemptions from the registration requirements
of such acts. Accordingly, the undersigned understands and agrees that for a
period of at least one year from the date of issuance of the Shares, (i)
stop-transfer instructions will be noted on the appropriate records of the
Corporation and (ii) there will be maintained on the certificate(s) evidencing
the Shares, or any substitutions therefor, a legend reading as follows:

         THE SHARES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED FOR
         SALE UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES
         ACT"), OR ANY OTHER STATE SECURITIES LAWS (COLLECTIVELY, THE "STATE
         SECURITIES ACTS"), AND HAVE BEEN ISSUED AND SOLD IN RELIANCE UPON
         EXEMPTIONS FROM THE REGISTRATION REQUIREMENTS OF SUCH ACTS, INCLUDING,
         BUT NOT NECESSARILY LIMITED TO, THE EXEMPTIONS CONTAINED IN SECTION
         4(2) OF THE SECURITIES ACT. THESE SECURITIES MAY NOT BE SOLD OR
         TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT OR
         IN A TRANSACTION WHICH IS EXEMPT FROM REGISTRATION UNDER THE SECURITIES
         ACT, AND ALL APPLICABLE STATE SECURITIES ACTS.

         Any assignment or endorsement of the certificate(s) representing the
Shares which is in violation of the restrictions on transfer provided above will
not be recognized by the Corporation nor will any assignee or endorsee of such
shares be recognized as the owner thereof by the Corporation.

         9.       Notices. All notices, designations, consents, offers or any
other communications provided for in this Agreement must be given in writing,
personally delivered, by a recognized overnight mail and courier service or by
mail. If by mail, it must be mailed by registered or certified mail, postage
prepaid, return receipt requested, and it will be deemed to have been given on
the date which is three (3) days following the date it is posted. Notice to the
Corporation is to be addressed to its then principal office. Notices to the
Shareholders are to be addressed to their respective addresses as they appear on
the transfer books of the Corporation, or to such other address as may be
designated by a Shareholder in writing to the Secretary of the Corporation.

         10.      Entire Agreement. This Agreement constitutes the entire
agreement among the Shareholders and the Corporation with respect to the subject
matter hereof and supersedes all prior agreements and understandings between
them or any of them with respect to such subject matter.

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         11.      Governing Law; Successors and Assigns. This Agreement shall be
governed by, and construed and enforced in accordance with the laws of the State
of Georgia (without giving effect to the conflict of law principles thereof).

         12.      Severability. If any provision of this Agreement shall be held
to be illegal, invalid or unenforceable, such illegality, invalidity or
unenforceability shall attach only to such provision and shall not in any manner
affect or render illegal, invalid or unenforceable any other provision of this
Agreement, and this Agreement shall be carried out as if any such illegal,
invalid or unenforceable provision were not contained herein.

         13.      Captions and Headings. Captions and Article and Section
headings are for convenience only and are not deemed to be part of this
Agreement, and in no way define, limit, extend or describe the scope of this
Agreement or the intent of any provision hereof.

         14.      Singular and Plural, Etc. Whenever the singular number is used
herein and where required by the context, the same shall include the plural, and
the neuter gender shall include the masculine and feminine genders.

         15.      Amendments and Waivers. Neither this Agreement nor any term
hereof may be changed, waived, discharged or terminated orally or in writing,
except that any term of this Agreement may be amended and the observance of any
such term may be waived (either generally or in a particular instance and either
retroactively or prospectively) only with the written consent of the Corporation
and the holders of at least 80% of the Shares held by the Shareholders;
provided, however, that no such waiver shall extend to or affect any other
obligation not expressly waived. No failure to exercise and no delay in
exercising, on the part of any party, any right, remedy, power or privilege
hereunder shall operate as a waiver thereof; nor shall any single or partial
exercise of any right, remedy, power or privilege hereunder preclude any other
or further exercise thereof or the exercise of any other right remedy, power or
privilege. The rights, remedies, powers and privileges herein provided are
cumulative and not exclusive of any rights, remedies, powers and privileges
provided by law. The failure of any party to insist upon a strict performance of
any of the terms or provisions of this Agreement, or to exercise any option,
right or remedy herein contained, shall not be construed as a waiver or as a
relinquishment for the future of such term, provision, option, right or remedy,
but the same shall continue and remain in full force and effect.

         16.      Successors and Assigns. All rights, covenants and agreements
of the parties contained in this Agreement shall, except as otherwise provided
herein, be binding upon and inure to the benefit of their respective successors
and assigns.

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<PAGE>   10


         17.      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.





                      (SIGNATURES APPEAR ON FOLLOWING PAGE)



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         IN WITNESS WHEREOF, this Agreement has been executed as of the day and
year first above written.

WT TECHNOLOGIES, INC.


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



------------------------------------
Christopher M. Brittin

------------------------------------
Susan R. Hopley


THE GARY D. SMITH AND
JEAN H. SMITH TRUST

By:
   ---------------------------------------
   Name:  Gary D. Smith
   Title: Trustee


By:
   ----------------------------------------
   Name:  Jean H. Smith
   Title: Trustee


--------------------------------------
F. Gilmer Siler



                   [SIGNATURE PAGE TO SHAREHOLDERS AGREEMENT]

                     (SIGNATURES CONTINUE ON FOLLOWING PAGE)

<PAGE>   12




BCD TECHNOLOGY S.A.
(solely for purposes of Sections 2(c)
and 5 hereof)


By:
   -----------------------------------------
Name:  Gerard Birchen
Title: Director

By:
   ------------------------------------------
Name:  Edward Bruin
Title: Director























                   [SIGNATURE PAGE TO SHAREHOLDERS AGREEMENT]