EXHIBIT 4.12

                        AGREEMENT FOR PAYMENT OF ACCOUNT



          AGREEMENT  FOR  PAYMENT  OF  ACCOUNT  dated as of June 24,  2002 (this
"Agreement"),  by and  between  XYBERNAUT  CORPORATION,  a Delaware  corporation
("Xybernaut"),  and FATHOM  CREATIVE,  INC., a District of Columbia  corporation
("Fathom").

          WHEREAS, Xybernaut has engaged the marketing services of Fathom; and

          WHEREAS,  Xybernaut  wishes to reach an  agreement  on an  alternative
payment plan to  compensate  Fathom for balances  owing to Fathom as of June 24,
2002; and

          WHEREAS,  Xybernaut and Fathom have reached agreement on the terms and
provisions of such alternative payment plan.

          NOW, THEREFORE,  for good and valuable consideration,  the receipt and
legal sufficiency of which is hereby acknowledged, the parties agree as follows:

          1. Balance.  Xybernaut and Fathom agree that the entire unpaid balance
of all  amounts  owed by  Xybernaut  to Fathom,  including,  but not limited to,
amounts  payable  in respect  of all  services,  goods,  expenses  and  products
provided by Fathom to Xybernaut through and including June 24, 2002, is, for all
purposes, equal to $28,984.73 (the "Balance"). The calculation of the Balance is
set forth on Exhibit A attached hereto.

          2. Payment of Balance.  Fathom agrees to accept as payment in full for
the Balance the  following:  (a) cash  installment  payments equal to $14,400.08
(the "Cash  Payments") and (b) the issuance of shares of Xybernaut common stock,
par value $0.01 per share (the "Common  Stock") for the remaining  $14,584.65 of
the Balance as provided for in Section 4 hereof (the "Stock Grant").

          3. Cash  Payments.  The Cash  Payments  will be paid by  Xybernaut  in
accordance with the payment schedule set forth for on Exhibit A attached hereto.




          4. Stock Grant. The Stock Grant will be satisfied by Xybernaut issuing
18,942  shares of Common  Stock (the  "Shares")  to Fathom based upon a value of
$0.77 per share (the "Agreed Upon Value Per Share"),  which amount  represents a
ten percent (10%)  discount  from the $0.85  closing  market price of the Common
Stock  on June  21,  2002  (the  last  trading  day  preceding  the date of this
Agreement).  The  issuance  of the  Stock  Grant,  as is the case with all stock
grants  by  Xybernaut,  is  subject  to the  approval  of  Xybernaut's  Board of
Directors.  Promptly after the receipt of such approval, Xybernaut shall cause a
stock certificate representing the Shares to be issued in the name of Fathom. If
the issuance of the Stock Grant has not been approved by Xybernaut(1)s  Board of
Directors,  and/or if Xybernaut has not caused a stock certificate  representing
the Shares  issued in the name of Fathom to be delivered to Fathom,  on or prior
to July 5, 2002, then Xybernaut  shall pay $14,584.65 of the Balance (i.e.,  the
portion  of the  Balance  which was to be so  satisfied  by the Stock  Grant) to
Fathom in full by good check on July 10, 2002.

          5.  Registration  of the  Shares.  Xybernaut  hereby  grants to Fathom
"piggyback  registration  rights"  with  respect  to the  Shares to be issued to
Fathom  hereunder  in  respect  of the  Stock  Grant  in the  next  registration
statement  filed by  Xybernaut  with  respect to its Common  Stock (other than a
registration  statement  on  Form  S-4 or  Form  S-8 or any  successor  thereto)
immediately following the issuance of the Shares.  Xybernaut will furnish Fathom
with written notice  concerning any such  registration  statement  reasonably in
advance of the filing  thereof.  If Fathom notifies  Xybernaut in writing,  such
notice to be given within seven (7) business days after  receipt of  Xybernaut's
written  notice,  that  Fathom  desires  its  Shares  to  be  included  in  such
registration  statement  (which  request shall specify the number of Shares that
Fathom wishes to have included in the registration  statement),  Xybernaut shall
use its  reasonable  best  efforts to cause such  Shares to be  included  in the
registration  statement and to cause the  registration  statement to be declared
effective  by  the  Securities  and  Exchange   Commission  (the  "Commission").
Notwithstanding  the foregoing,  Xybernaut  shall have the right to exclude such
number  of the  Shares  from the  registration  statement  as  Xybernaut  or the
managing underwriter(s),  if applicable,  may reasonably determine would have an
adverse affect on the registration  statement,  the likelihood of the Commission
to declare the registration  statement  effective or the price to be received by
Xybernaut or the other selling shareholders for the other shares of Common Stock
covered by the  registration  statement.  If Xybernaut  cuts-back  the




number  of  Shares  requested  by  Fathom  to be  included  in the  registration
statement for which Fathom has exercised its piggyback  registration  rights, as
permitted in the immediately  preceding sentence,  Fathom shall continue to have
piggyback registration rights for succeeding  registration  statements until all
of the Shares  have been  registered.  Xybernaut  shall be  responsible  for the
compliance of any such  registration  statement with applicable  securities laws
until all of the Shares have been  registered;  provided  that  Fathom  shall be
responsible for any information about Fathom specifically required by applicable
securities  laws.  Fathom shall  indemnify and hold harmless  Xybernaut (and its
directors,  officers, employees, control persons and agents and their respective
successors and assigns) from and against any claim,  action,  suit,  proceeding,
damage,   liability,   loss,  penalty,   cost  and  expense  (including  without
limitation,  reasonable attorneys' fees and expenses) incurred by any of them as
a result of, or based upon, a  misstatement  of a material fact or omission of a
material  fact  regarding  Fathom  which is  furnished to Xybernaut by Fathom or
omitted to be furnished to Xybernaut for inclusion in any registration statement
which  includes  any of the  Shares.  All  fees  and  expenses  incident  to the
registration of the Shares shall be borne by Xybernaut. Notwithstanding anything
set forth  herein,  Xybernaut  shall not be  required to include any Shares in a
registration  statement, if such shares are eligible to be sold pursuant to Rule
144 promulgated under the Securities Act of 1933, as amended (the "Act"),  based
upon the holding period for the Shares.  Notwithstanding  anything  hereinto the
contrary  in no event  shall  Fathom  Creative  be liable  for any loss,  claim,
damage, liability,  expense or otherwise in an aggregate amount in excess of the
proceeds  received by Fathom  Creative  from the sale of Shares  covered by such
registration statement.

          6.  Representations and Warranties.  Fathom represents and warrants to
Xybernaut as follows: (a) Fathom is a sophisticated  investor who either (i) has
such  knowledge  and  experience in financial  and business  matters  (including
without   limitation,   knowledge  and   experience   investing  in  "restricted
securities",  as that term is defined in the Regulation D promulgated  under the
Act, and the risks  associated with such an investment)  such that it is capable
of  evaluating  the merits and risks of its  investment  in the  Company and the
Shares,  (ii) has obtained  independent  professional  financial advice,  from a
investment advisor,  sufficient to enable it to evaluate the merits and risks of
its  investment  in the Company and Shares,  and/or  (iii) it is an  "accredited
investor," which is defined under Rule 501(a)(3) of the Act; (b) it is acquiring
the Shares for its own account and not with a view to their distribution  within
the




meaning  of  Section  2(11)  of the  Act;  (c) it has no  present  intention  to
distribute   any  of  the  Shares   publicly  and  has  no  present   agreement,
understanding or arrangement to subdivide,  sell, assign,  transfer or otherwise
dispose  of all or any of the Shares to any other  person or entity;  and (d) it
understands that it may be necessary to bear the economic risk of the investment
in the Shares for an indefinite period of time  indefinitely  because the Shares
may  not be  sold,  hypothecated,  transferred,  pledged,  gifted  or  otherwise
disposed of unless  registered under the Act and all applicable state securities
laws or an exemption from such  registration  is available and is fully complied
with by Fathom.  Notwithstanding  the above, it is acknowledged  that Fathom may
publicly  sell  shares of Common  Stock in the open market  without  restriction
through its broker if a registration  statement  covering the Shares is declared
effective by the Commission  pursuant to Section 5 hereof.  Fathom  acknowledges
and agrees that Xybernaut will be relying on the  representations and warranties
of  Fathom  set forth in this  Section 6 in  issuing  the  Shares  which are the
subject of the Stock Grant to Fathom pursuant to an exemption from  registration
under the Act and applicable  state  securities  laws. The  certificate  for the
Shares issued to Fathom shall bear the following restrictive legend.

          "THESE   SECURITIES  HAVE  NOT  BEEN  REGISTERED  UNDER  THE
          SECURITIES   ACT  OF  1933,  AS  AMENDED  (THE  "ACT"),   OR
          APPLICABLE STATE SECURITIES LAWS. THE SECURITIES REPRESENTED
          BY THIS CERTIFICATE MAY NOT BE OFFERED,  SOLD,  TRANSFERRED,
          HYPOTHECATED,  PLEDGED,  GIFTED OR OTHERWISE DISPOSED OF, IN
          WHOLE OR IN PART, UNLESS THE SHARES ARE REGISTERED UNDER THE
          ACT, OR IN THE ABSENCE OF A REGISTRATION STATEMENT IN EFFECT
          WITH  RESPECT  TO SUCH  SECURITIES  UNDER  THE  ACT,  UNLESS
          XYBERNAUT  CORPORATION  (THE  "COMPANY")  HAS  RECEIVED  THE
          WRITTEN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT,
          AFTER INVESTIGATION OF THE RELEVANT FACTS, COUNSEL IS OF THE
          OPINION THAT SUCH  TRANSACTION  IS EXEMPT FROM  REGISTRATION
          UNDER THE ACT AND UNDER APPLICABLE STATE SECURITIES LAWS."

          Promptly upon the written request of Fathom, the foregoing restrictive
legend shall be removed  from the  certificate  representing  any Shares at such
time as they become  eligible  for resale  pursuant to  Securities  and Exchange
Commission  Rule  144(k),  to the extent  allowable  pursuant  to this and other
applicable rules, regulations and laws.



          7. Fathom  Release.  Upon the  execution and delivery of the Agreement
and provided that Xybernaut is not in material  breach of this Agreement  Fathom
shall  forebear  and suspend  any and all  actions,  suits or other  proceedings
threatened or pending against Xybernaut for collection of the Balance.  Upon the
later of the date of the date that (x) Fathom  receives the last  installment of
the Cash Payment, (y) the Stock Grant contemplated herein is completed,  and (z)
the registration of the Shares as provided for in Sections 3, 4 and 5 hereof (if
such  registration  is  requested)  (the "Release  Date"),  Fathom shall forever
release  Xybernaut and its subsidiaries and their respective  present and future
officers,  directors,  employees,  representatives and agents and the respective
successors  and  assigns of each of them (each a  "Releasee"),  from any and all
claims,  suits,  debts,  damages,  liabilities,  actions  or causes  of  action,
demands,   obligations,   promises,  costs  and  expenses  (including,   without
limitation,  attorneys' fees and expenses) of any nature and description, in law
or in  equity,  whether  known  or  unknown,  known  in  the  future,  fixed  or
contingent,  suspected,  disclosed or  undisclosed,  against any  Releasee  that
Fathom or any of its subsidiaries or any of their respective  present and former
officers,  directors,  employees,  representatives,   agents,  their  respective
successors  and assigns may have against any Releasee from the beginning of time
through the Release  Date based upon,  arising out of or in any way  relating to
the Balance, this Agreement or the matters contemplated hereby relates.

          8. Governing Law;  Jurisdiction.  This Agreement  shall be governed by
and  construed  in  accordance  with the law of the  Commonwealth  of  Virginia,
without regard to Virginia's  conflicts of law principles.  This Agreement shall
not be  interpreted  or construed  with any  presumption  against the party that
caused this Agreement to be drafted. Fathom and Xybernaut hereby unconditionally
and irrevocably consent to the jurisdiction of the Federal District Court of the
Northern  District  of  Virginia  with  respect  to any  action,  suit or  other
proceeding arising out of or relating to this Agreement. The prevailing party in
any such action,  suit or proceeding shall be entitled to receive  reimbursement
of all of its  attorneys'  fees and expenses  incurred in  connection  with such
action, suit or proceeding.

          9. Miscellaneous.

          (a) This Agreement may not be amended,  modified or waived,  except by
an instrument in writing signed by each of the parties  hereto.  This Agreement,
together with




the Exhibits hereto,  constitute the entire  understanding  and agreement of the
parties with respect to the subject  matter hereof and its  supercedes all prior
and/or  contemporaneous  understandings and agents (whether written or oral) all
of which are merged herein.

          (b) This  Agreement  may not be assigned by either  party  without the
prior written consent of the other party hereto. This Agreement shall be binding
upon and inure to the benefit of the  parties  hereto and their  successors  and
permitted assigns.

          (c) This  Agreement  may be executed in two (2) or more  counterparts,
each of which shall be an original,  and when taken together,  shall  constitute
owe and the same agreement. Section headings are included herein for convenience
of reference only, and they shall not effect the construction or  interpretation
of this Agreement.

          IN WITNESS  WHEREOF,  the parties  have caused  this  Agreement  to be
executed by their authorized officers as of the date first written above.


XYBERNAUT CORPORATION                       FATHOM, INC.



By:                                         By:
   ---------------------------------           ---------------------------------

Name:                                       Name:
     -------------------------------             -------------------------------

Title:                                      Title:
      ------------------------------              ------------------------------








                                                                       EXHIBIT A



                                                                                              DATE OF CASH
                                                                                              ------------
 INVOICE #     INVOICE DATE        INVOICE AMOUNT       PAID IN STOCK         PAID IN CASH       PAYMENT
 ---------     ------------        --------------       -------------         ------------       -------

                                                                                  
    5432        12/11/2001       $        3,573.53                         $     3,573.53        6/28/2002
    5508        2/11/2002        $        4,673.24     $    4,673.24
    5500        2/21/2002        $          235.05                         $       235.05        7/5/2002
    5505        2/21/2002        $          865.63     $      865.63
    5499        2/21/2002        $        1,280.13                         $     1,280.13        6/28/2002
    5498        2/21/2002        $          313.50                         $       313.50        7/5/2002
    5522         3/7/2002        $        2,423.62                         $     2,423.62        7/5/2002
    5528         3/7/2002        $        1,386.38                         $     1,386.38        7/5/2002
    5526         3/7/2002        $        1,721.17                         $     1,721.17        7/12/2002
    5571         4/3/2002        $        1,630.72                         $     1,630.72        7/12/2002
    5568         4/3/2002        $        9,045.78     $    9,045.78
    5573         4/3/2002        $          700.06                         $       700.06        7/12/2002
    5630         6/5/2002        $        1,135.92                         $     1,135.92        7/12/2002
                              --------------------- -------------------   -------------------

                                 $       28,984.73     $   14,584.65       $    14,400.08              -
                              ===================== ===================   ===================
                                                                50.3%               49.7%