As filed with the Securities and Exchange Commission on October 15, 2001
                                                      REGISTRATION NO. 333-68832
--------------------------------------------------------------------------------


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                ---------------


                         PRE-EFFECTIVE AMENDMENT NO.1 TO
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933


                              XYBERNAUT CORPORATION
                              ---------------------
             (Exact name of registrant as specified in its charter)

           DELAWARE                                           54-1799851
-------------------------------                             --------------
(State or other jurisdiction of                            (I.R.S. Employer
Incorporation or organization)                             Identification No.)

                             12701 FAIR LAKES CIRCLE
                             FAIRFAX, VIRGINIA 22033
                                 (703) 631-6925
       -----------------------------------------------------------------
               (Address, including zip code, and telephone number,
       Including area code, of registrant's principal executive offices)

                                EDWARD G. NEWMAN
                             12701 FAIR LAKES CIRCLE
                             FAIRFAX, VIRGINIA 22033
                                 (703) 631-6925
       -----------------------------------------------------------------
            (Name, address, including zip code, and telephone number,
                   Including area code, of agent for service)

                                    Copy to:
                           Martin Eric Weisberg, Esq.
                      Jenkens & Gilchrist Parker Chapin LLP
                              The Chrysler Building
                              405 Lexington Avenue
                            New York, New York 10174
                                 (212) 704-6000

         APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC: As soon as
practicable after the effective date of this Registration Statement.

         If the only securities on this Form are being offered pursuant to
dividend or interest reinvestment plans, please check the following box. |_|

         If any of the securities being registered on this Form are to be
offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, other than securities offered only in connection with
dividend or interest reinvestment plans, check the following box. |X|

         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. |_|

         If this Form is a post-effective amendment filed pursuant to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act registration statement number of the earlier effective registration
statement for the same offering. |_| __________

         If delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box. |_|





                                               CALCULATION OF REGISTRATION FEE

---------------------------------------------  -------------------  -------------------  -----------------  ---------------
                                                                                             PROPOSED
            TITLE OF EACH CLASS                   AMOUNT TO BE       PROPOSED MAXIMUM        MAXIMUM          AMOUNT OF
       OF SECURITIES TO BE REGISTERED            REGISTERED(1)        OFFERING PRICE        AGGREGATE        REGISTRATION
                                                                        PER SHARE         OFFERING PRICE         FEE
---------------------------------------------  -------------------  -------------------  -----------------  ---------------
                                                                                          
Common Stock, $.01 par value per share..       1,324,503 (2)        $   3.065(4)         $  4,059,601.70    $  1,014.90
---------------------------------------------  -------------------  -------------------  -----------------  ---------------
Common Stock, $.01 par value per share.....      370,861 (2)(3)       $   4.530 (5)        $  1,680,000.33    $    420.00
---------------------------------------------  -------------------  -------------------  -----------------  ---------------
Common Stock, $.01 par value per share..       200,000 (2)(3)       $   5.000 (5)        $  1,000,000.00    $    250.00
----------------------------------------------------------------------------------------------------------  ---------------
Total Registration Fee..................                                                                    $  1,684.90
----------------------------------------------------------------------------------------------------------  ---------------

(1) Represents the shares of common stock being registered for resale by the selling stockholders.

(2) Pursuant to Rule 416, the shares of common stock offered hereby also include such presently indeterminate number of
    shares of common stock as shall be issued by us to the selling stockholders upon adjustment under anti-dilution
    provisions covering the additional issuance of shares by Xybernaut resulting from stock splits, stock dividends or
    similar transactions.

(3) Represents the number of shares of common stock issuable upon exercise of warrants to purchase shares of our common
    stock.

(4) Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(c) and (g) of the Securities
    Act of 1933, as amended (the "Securities Act"); based on the average ($3.065) of the bid ($3.060) and asked ($3.070)
    price on the Nasdaq National Market on August 27, 2001.

(5) Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(g) of the Securities Act,
    based on the higher of (a) the exercise price of the warrants or (b) the offering price of securities of the same class
    included in this registration statement.

    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES AS MAY BE NECESSARY TO DELAY ITS
    EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
    STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THIS
    REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SECTION 8(A), MAY
    DETERMINE.





The information in this prospectus is not complete and may be changed. These
securities may not be sold until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to sell nor is it seeking an offer to buy these securities in any state where
the offer or sale is not permitted.


                  SUBJECT TO COMPLETION, DATED OCTOBER __, 2001


PROSPECTUS

                              XYBERNAUT CORPORATION

                        1,895,364 SHARES OF COMMON STOCK

     The selling stockholders of Xybernaut Corporation listed on page 8 of this
prospectus are offering for sale up to 1,895,364 shares of common stock of
Xybernaut under this prospectus.

     The selling stockholders may offer their shares through public or private
transactions, at prevailing market prices, or at privately negotiated prices.
See "Plan of Distribution."

            ---------------------------------------------------------
                      NASDAQ National Market Symbol: "XYBR"
            ---------------------------------------------------------


     On October 12, 2001, the closing price of one share of our common stock on
the NASDAQ National Market was $2.03.


     THIS INVESTMENT INVOLVES A HIGH DEGREE OF RISK. YOU SHOULD CAREFULLY
     CONSIDER THE FACTORS DESCRIBED UNDER THE CAPTION "RISK FACTORS" BEGINNING
     ON PAGE 2 OF THIS PROSPECTUS.

     NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
     COMMISSION HAS APPROVED OR DISAPPROVED THESE SECURITIES OR DETERMINED IF
     THIS PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY
     IS A CRIMINAL OFFENSE.


               The date of this prospectus is______________, 2001





                                  RISK FACTORS

         BEFORE YOU BUY SHARES OF OUR COMMON STOCK, YOU SHOULD BE AWARE THAT
THERE ARE VARIOUS RISKS ASSOCIATED WITH THAT PURCHASE, INCLUDING THOSE DESCRIBED
BELOW. YOU SHOULD CONSIDER CAREFULLY THESE RISK FACTORS, TOGETHER WITH ALL OF
THE OTHER INFORMATION IN THIS PROSPECTUS AND THE DOCUMENTS WE HAVE INCORPORATED
BY REFERENCE IN THE SECTION "WHERE YOU CAN FIND MORE INFORMATION ABOUT US,"
BEFORE YOU DECIDE TO PURCHASE SHARES OF OUR COMMON STOCK.

  -----------------------------------------------------------------------------
     RISKS ASSOCIATED WITH OUR HISTORY OF LOSSES AND FUTURE NEED FOR CAPITAL
  -----------------------------------------------------------------------------

WE HAVE A HISTORY OF LOSSES AND, IF WE DO NOT ACHIEVE PROFITABILITY, WE MAY NOT
BE ABLE TO CONTINUE OUR BUSINESS IN THE FUTURE.

         Our research, development, sales, marketing and general and
administrative expenses have resulted in significant losses and are expected to
continue to result in significant losses for the foreseeable future. We have
incurred the following losses since 1996:

                  Fiscal years ended:
                      o  December 31, 1996                      $ 5,298,633
                      o  December 31, 1997                      $10,051,757
                      o  December 31, 1998                      $13,001,338
                      o  December 31, 1999                      $16,697,413
                      o  December 31, 2000                      $24,185,222

                  Fiscal quarters ended:
                      o  March 31, 2001                         $ 5,936,589
                      o  June 30, 2001                          $ 8,453,995


WE COULD BE REQUIRED TO CUT BACK OR STOP OPERATIONS IF WE ARE UNABLE TO RAISE OR
OBTAIN NEEDED FINANCING.

         The research, development, commercialization, manufacturing and
marketing of our products will likely require financial resources which are
significantly in excess of those presently available to us. If we are not able
to arrange financing or other third party arrangements on acceptable terms, we
may be unable to fully develop and commercialize any of our products and could
be required to cut back or stop operations.

                                      -2-

   --------------------------------------------------------------------------
             RISKS ASSOCIATED WITH THE INDUSTRY IN WHICH WE OPERATE
   --------------------------------------------------------------------------


OUR FUTURE REVENUES AND ABILITY TO PRODUCE NEW PRODUCTS DEPEND SUBSTANTIALLY ON
THE SUCCESS OF THE MOBILE ASSISTANT(R) SERIES.

         The Mobile Assistant series is our principal product, and our success
will depend to a large extent upon its commercial acceptance, which cannot be
assured. We have signed an agreement with IBM to design, develop and manufacture
the computer portion of Xybernaut's next generation of wearable computer systems
and we have recently begun shipments of this product and the MA(R) TC.
Additional product development will result in a significant increase in our
research and development expenses that may be unrecoverable should
commercialization of new products prove unsuccessful. We also could require
additional funding if research and development expenses are greater than we
anticipate. As with most high technology products, new models of the Mobile
Assistant series must be introduced periodically for our company to remain
competitive. There can be no assurance that these new models can be successfully
developed or will be commercially accepted.

WE MAY HAVE TO LOWER PRICES OR SPEND MORE MONEY TO EFFECTIVELY COMPETE AGAINST
COMPANIES WITH GREATER RESOURCES THAN US, WHICH COULD RESULT IN LOWER REVENUES
AND/OR PROFITS.

         The success of our products in the marketplace depends on many factors,
including product performance, price, ease of use, support of industry
standards, competing technologies and customer support and service. Given these
factors we cannot assure you that we will be able to compete successfully. For
example, if our competitors offer lower prices, we could be forced to lower
prices which could result in reduced or negative margins and a decrease in
revenues. If we do not lower prices we could lose sales and market share. In
either case, if we are unable to compete against our main competitors which
include established companies like Computing Devices International, a division
of Ceridian Corporation, ViA Inc., Texas Microsystems, Telxon, Symbol, Norand,
Raytheon, and others, we would not be able to generate sufficient revenues to
grow our company or reverse our history of losses.

         In addition, we may have to spend more money to effectively compete for
market share, including funds to expand our infrastructure, which is a capital
and time intensive process. Further, if other companies choose to aggressively
compete against us, we may have to reduce our prices and spend more money on
advertising, promotion, trade shows, product development, marketing and overhead
expenses, hiring and retaining personnel, and developing new technologies. These
lower prices and higher expenses would adversely affect our net income.

CURRENCY FLUCTUATIONS, ESPECIALLY IN THE JAPANESE YEN AND GERMAN MARK, MAY
SIGNIFICANTLY INCREASE OUR EXPENSES AND AFFECT OUR RESULTS OF OPERATIONS.

         The exchange rates for some local currencies in countries where we
operate may fluctuate in relation to the U.S. dollar. Such fluctuations may have
an adverse effect on our competitive position as well as our expenses, revenues,
earnings, assets or liabilities when local currencies are translated


                                      -3-


into U.S. dollars. We have significant operations in Asia, in particular Japan,
and Europe, in particular Germany. Also, we are party to supplier arrangements
with several companies in Japan and Europe for the production of the Mobile
Assistant series. Our foreign operations, including payments to our suppliers,
are typically funded in the local currencies. Any changes in the value of the
U.S. dollar against these currencies could result in an increase in our reported
expenses or inventory costs or a decrease in our reported revenues which, if
substantial, could have a material adverse effect on our financial condition and
results of operations.


IF OUR SALES AND RECEIVABLES CONTINUE TO BE CONCENTRATED AMONG A SMALL NUMBER
OF OUR CUSTOMERS, THE LOSS OF A CUSTOMER, A SUBSTANTIAL DECREASE OF SALES TO ONE
OF OUR CUSTOMERS OR A CUSTOMER'S INABILITY TO PAY AMOUNTS OWED TO US MAY HAVE A
MATERIAL ADVERSE EFFECT ON OUR SALES, OPERATING RESULTS AND CASH FLOWS.

         A significant percentage of our sales has been concentrated among a
relatively small number of customers. For the six months ended June 30, 2001, we
had three (3) customers which each comprised more than 10% of our total
revenues, representing an aggregate of 37% of total revenues. Additionally, at
June 30, 2001 we had one (1) customer which comprised more than 10% of our
accounts receivable. There can be no assurance that this concentration of sales
and receivables among customers will not continue in the future. The loss of a
significant customer or a substantial decrease in sales to such a customer would
have a material adverse effect on our sales and operating results. Our
arrangements with certain of our customers, especially those related to the sale
of our wearable computer hardware products, are based on the receipt of purchase
orders and otherwise are not subject to long-term written contracts and
generally may be terminated upon short notice. In addition, these and other
customers may demand price concessions from us that could adversely affect
profit margins. Also, our cash flows may be adversely affected if a customer is
unable or unwilling to repay amounts owed to us.


  ----------------------------------------------------------------------------
                              RISK ASSOCIATED WITH
                      OUR INTERNAL OPERATIONS AND POLICIES
  ----------------------------------------------------------------------------

SINCE WE DO NOT INTEND TO DECLARE DIVIDENDS IN THE FORESEEABLE FUTURE, THE
RETURN ON YOUR INVESTMENT WILL DEPEND UPON APPRECIATION OF THE MARKET PRICE OF
YOUR SHARES.

         We have never paid any dividends on our common stock. Our board of
directors does not intend to declare any dividends in the foreseeable future,
but intends to retain all earnings, if any, for use in our business operations.
As a result, the return on your investment in Xybernaut will depend upon any
appreciation in the market price of the common stock. The holders of common
stock are entitled to receive dividends when, as and if declared by the board of
directors out of funds legally available for dividend payments. The payment of
dividends, if any, in the future is within the discretion of our board of
directors and will depend upon our earnings, capital requirements and financial
condition, and other relevant factors.

   ---------------------------------------------------------------------------
               RISKS WHICH MAY DILUTE THE VALUE OF YOUR XYBERNAUT
                SHARES OR LIMIT THE EFFECT OF THEIR VOTING POWER
   ---------------------------------------------------------------------------

THE PRICE OF OUR COMMON STOCK IS HIGHLY VOLATILE.

                                       -4-


         The price of our common stock is highly volatile. During the period
from January 1, 2000 to August 27, 2001 the closing price of our common stock
has ranged from a high of $23.75 to a low of $1.22. Following periods of
volatility in the market price of a company's securities, securities class
action litigation has often been instituted against such a company. If similar
litigation were instituted against us, it could result in substantial costs and
a diversion of our management's attention and resources, which could have an
adverse effect on our business. The volatile fluctuations of the market price
are based on (1) the number of shares in the market at the time as well as the
number of shares we may be required to issue in the future, compared to the
market demand for our shares; (2) our performance and meeting expectations of
our performance, including the development and commercialization of our products
and proposed products; (3) market conditions for technology companies in the
small capitalization sector; and (4) general economic and market conditions.

OUR EXECUTIVE OFFICERS, DIRECTORS AND PRINCIPAL STOCKHOLDERS, TOGETHER, MAY
EXERCISE CONTROL OVER ALL MATTERS SUBMITTED TO A VOTE OF STOCKHOLDERS.

         As of May 18, 2001, our executive officers, directors and principal
stockholders beneficially owned, in the aggregate, approximately 11.7% of our
outstanding shares of common stock. These stockholders, if acting together, may
be able to effectively control most matters requiring approval by our
stockholders. The voting power of these stockholders under certain circumstances
could have the effect of delaying or preventing a change in control of
Xybernaut.

WE HAVE 12,868,762 SHARES OF OUR COMMON STOCK RESERVED FOR FUTURE ISSUANCES
WHICH CAN SUBSTANTIALLY DILUTE THE VALUE OF YOUR XYBERNAUT COMMON STOCK.

         The issuance of reserved shares would dilute the equity interest of
existing stockholders and could have a significant adverse effect on the market
price of our common stock. As of August 27, 2001, we had 12,868,762 shares of
common stock reserved for possible future issuances upon conversion of options
and warrants. These options and warrants are convertible into or exercisable for
shares of common stock at prices that may represent discounts from future market
prices of the common stock. The exercise of these options or warrants could
result in substantial dilution to existing holders of common stock. The sale of
the common stock acquired at a discount could have a negative impact on the
trading price of the common stock and could increase the volatility in the
trading price of the common stock. See the section entitled "Dilution" for a
summary of the number of shares which could be issued upon conversion of the
outstanding preferred stock at various market prices.

         In addition, we may seek additional financing which may result in the
issuance of additional shares of our capital stock and/or rights to acquire
additional shares of our capital stock. Those additional issuances of capital
would result in a reduction of your percentage interest in Xybernaut.

ANTI-TAKEOVER MEASURES IN OUR CERTIFICATE OF INCORPORATION COULD ADVERSELY
AFFECT THE VOTING POWER OF THE HOLDERS OF THE COMMON STOCK.

         Our certificate of incorporation authorizes anti-takeover measures such
as the authority to issue "blank check" preferred stock and the staggered terms
of the members of our board of directors. Those measures could have the effect
of delaying, deterring or preventing a change in control without any action by
our stockholders. In addition, issuance of preferred stock, without stockholder

                                      -5-



approval, on those terms as the board of directors may determine, could
adversely affect the voting power of the holders of the common stock, including
the loss of voting control to others.

                INFORMATION REGARDING FORWARD-LOOKING STATEMENTS

         This prospectus contains certain forward-looking statements which
involve substantial risks and uncertainties. These forward-looking statements
can generally be identified because the context of the statement includes words
such as "may," "will," "except," "anticipate," "intend," "estimate," "continue,"
"believe," or other similar words. Similarly, statements that describe our
future plans, objectives and goals are also forward-looking statements. Our
factual results, performance or achievements could differ materially from those
expressed or implied in these forward-looking statements as a result of certain
factors, including those listed in "Risk Factors" and elsewhere in this
prospectus.

                  WHERE YOU CAN FIND MORE INFORMATION ABOUT US

         We file annual, quarterly and special reports, proxy statements and
other information with the SEC. You may read and copy any document we file at
the SEC's public reference rooms in Washington, D.C., New York, New York and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further information
on the public reference rooms. Our SEC filings are also available to the public
over the Internet at the SEC's Website at "http://www.sec.gov."

         We have filed with the SEC a registration statement on Form S-3 to
register the shares being offered. This prospectus is part of that registration
statement and, as permitted by the SEC's rules, does not contain all the
information included in the registration statement. For further information with
respect to us and our common stock, you should refer to the registration
statement and to the exhibits and schedules filed as part of the registration
statement, as well as the documents discussed below.

         The SEC allows us to "incorporate by reference" the information we file
with them, which means that we can disclose important information to you by
referring you to those documents. The information incorporated by reference is
an important part of this prospectus, and information that we file later with
the SEC will automatically update or supersede this information.

         This prospectus may contain summaries of contracts or other documents.
Because they are summaries, they will not contain all of the information that
may be important to you. If you would like complete information about a contract
or other document, you should read the copy filed as an exhibit to the
registration statement or incorporated in the registration statement by
reference.

         We incorporate by reference the documents listed below and any future
filings we will make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of
the Securities Exchange Act of 1934 (File No. 0-19041) until all of the shares
are sold:

         o        Quarterly Report on Form 10-Q for the fiscal quarter ended
                  June 30, 2001;

         o        Quarterly Report on Form 10-Q for the fiscal quarter ended
                  March 31, 2001;

                                      -6-


         o        Annual Report on Form 10-K, as amended by Form 10-K/A, for the
                  fiscal year ended December 31, 2000; and

          o       The description of our common stock contained in the
                  registration statement on Form 8-A filed on July 15, 1996
                  under the Exchange Act (File No. 0-15086), including all
                  amendments or reports filed for the purpose of updating that
                  description.

         You may request a copy of these filings, at no cost, by writing to us
at 12701 Fair Lakes Circle, Suite 550, Fairfax, Virginia 22033, (703) 631-6925,
Attention: John F. Moynahan or by e-mail at investorrelations@xybernaut.com.

         You can review and copy the registration statement, its exhibits and
schedules, as well as the documents listed below, at the public reference
facilities maintained by the SEC as described above. The registration statement,
including its exhibits and schedules, are also available on the SEC's web site.

                                 USE OF PROCEEDS

         The selling stockholders are selling all of the shares covered by this
prospectus for their own accounts. Accordingly, we will not receive any proceeds
from the resale of the shares.

         We will receive proceeds, if any, from the exercise of warrants. We
will use those proceeds, if any, for working capital and general corporate
purposes.

         We will bear the expenses relating to this registration, other than
discounts and commissions, which will be paid by the selling stockholder.

                                    DILUTION

         As of August 27, 2001, we had issued and outstanding 52,758,624 shares
of common stock. At that date, there were an additional 12,868,762 shares of
common stock reserved for possible future issuances as follows:

         o        options to purchase 6,071,719 shares at an exercise price
                  between $1.21 and $23.38 per share. We have registered the
                  shares issuable upon exercise of the options under the
                  Securities Act;

         o        warrants to purchase 5,270,754 shares at a price between $2.00
                  and $18.00 per share. Of the 5,270,754 shares, we have
                  previously registered a total of 4,332,393 shares issuable
                  upon exercise of these warrants. This prospectus covers an
                  additional 570,861 shares of common stock issuable upon
                  exercise of warrants, which shares will be freely tradable
                  without restriction (subject to prospectus delivery
                  requirements) on the effective date of the registration
                  statement. The remaining 367,500 shares will be deemed to be
                  "restricted securities" when issued; and

                                      -7-


         o        1,526,289 shares issuable upon exercise of options under the
                  Company's stock incentive plans which have not been granted as
                  of August 27, 2001. We have registered the shares issuable
                  upon exercise of the options.

         The shares which will be deemed "restricted securities" may be sold
under Rule 144. Rule 144 permits sales of "restricted securities" by any person,
whether or not an affiliate of the issuer, after a one year holding period. At
that time, sales can be made subject to the Rule's volume and other limitations
and after two years by non-affiliates without adhering to Rule 144's volume or
other limitations. In general, an "affiliate" is a person with the power to
manage and direct our policies. The SEC has stated that, generally, executive
officers and directors of an entity are deemed affiliates of the issuing entity.


                                      -8-


                              SELLING STOCKHOLDERS

         This prospectus covers the resale by the selling stockholders of up to
1,895,364 shares of our common stock.


         The natural person holding voting and/or dispositive control over the
shares that Eva Holdings Limited will sell is Ms. C.B. Williams, Director. The
address of Eva Holdings Limited is Gretton House, Duke Street, Grand Turk, Turks
& Caicos, BWI.

         The natural person holding voting and/or dispositive control over the
shares that DaVinci International Limited will sell is Ms. Deirdre M. McCoy,
Director. The address of DaVinci International Limited is Charlotte House,
Charlotte Street, P.O. Box N-9204, Nassau, Bahamas.


         The following table lists the selling stockholders and certain
information regarding the ownership by such selling stockholders of shares of
our common stock as of August 27, 2001, and as adjusted to reflect the sale of
the shares. Information concerning the selling stockholders, their pledgees,
donees and other non-sale transferees who may become selling stockholders may
change from time to time. To the extent the selling stockholders or any of their
representatives advise us of such changes, we will report those changes in a
prospectus supplement to the extent required. See "Plan of Distribution."

         The registration of the following shares through this registration
statement allows the following entities to sell their share holdings in the
future on the open market and is not necessarily an indication of intent to sell
the shares.



                                                       Percentage                    ----------------------
                                                           of                           Shares of Common
                                                         Common                           Stock Owned
                                   Shareso of Common  Stock Owned     Shares of      after Offering (1)(2)
                                 Stock Owned Prior       Prior to    Common Stock    ----------------------
                                    to Offering        the Offering  to be Sold (1)     Number    Percent
----------------------------------------------------------------------------------------------------------
                                                                           
Eva Holdings Limited                1,655,629 (3)           *         1,655,629 (3)       0
Texas Instruments Incorporated        200,000 (4)           *           200,000 (4)       0
DaVinci International Limited          39,735 (4)           *            39,735 (4)       0
         * Less than 1%
--------------

(1)      Assumes that the selling stockholders will exercise all of their
         warrants, if any, into common stock.
(2)      Assumes all of the securities offered hereby will be sold by the
         selling stockholders.
(3)      Includes 331,126 shares of common stock issuable upon exercise of
         warrants.
(4)      Represents shares of common stock issuable upon exercise of warrants.


         The common stock has the material rights and obligations discussed
below and under the

                                      -9-


section entitled "Description of Securities." We have filed the agreements
relating to these rights and obligations with the SEC. We urge you to read them
in their entirety.

         Eva Holdings Limited acquired its shares of common stock in a private
placement transaction entered into on July 31, 2001. Under the terms of the
common stock and warrant purchase agreement between Eva Holdings Limited and us,
we agreed to sell 1,324,503 shares of our common stock at a price of $3.02 per
share, representing an approximate 10% discount to the closing price of the
shares on the day preceding the finalization of negotiations, for gross proceeds
of $4,000,000. We also issued warrants to purchase 331,126 shares of our common
stock at $4.53 per share. The warrants are exercisable for a period of 5 years
from the date of issuance. We may call up to 100% of the warrants if the common
stock trades at a price equal to or greater than $6.50 per share for 5
consecutive trading days. In connection with our sale of common stock pursuant
to the common stock and warrant purchase agreement, we entered into a
registration rights agreement pursuant to which, among other things, we agreed
to use our best efforts to (i) file a registration statement to register for
resale the shares of common stock, including the shares of common stock issuable
upon exercise of the warrants, no later than sixty days after the closing date
and (ii) cause such registration statement to become effective no later than
ninety days after the closing date.


         On July 31, 2001, DaVinci International Limited received cash in the
amount of $120,000 and warrants to purchase 39,735 shares of our common stock at
$4.53 per share as a fee for certain financial advisory services rendered to us
relating to the foreign capital markets in connection with the private placement
transaction with Eva Holdings Limited. The warrants are exercisable for a period
of 5 years from the date of issuance. We may call up to 100% of the warrants if
the common stock trades at a price equal to or greater than $6.50 per share for
5 consecutive trading days.


         On April 18, 2001, Texas Instruments Incorporated received warrants to
purchase 200,000 shares of our common stock at $5.00 per share in connection
with entering into a Speech Recognition Software License Agreement with us. The
warrants are exercisable for a period of 5 years from the date of issuance. The
warrant provides that we will use our best efforts to cause a registration
statement for the shares of common stock underlying such warrants to become
effective no later then October 18, 2001.

         The warrants have adjustment provisions for standard dilution events
including stock splits, stock dividends and similar transactions.

         Other than as indicated above and as investors in private placements
and other financings for our common stock, the selling stockholders are not
affiliated with us and has not had any material relationship with us during the
past three years.

                            DESCRIPTION OF SECURITIES

GENERAL

         Our authorized capital stock consists of 80,000,000 shares of common
stock, par value $0.01 per share, and 6,000,000 shares of preferred stock, par
value $0.01 per share. As of August 27, 2001, we have 52,758,624 shares of
common stock issued and outstanding. We have reserved 12,868,762 shares of
common stock for issuance upon exercise of options and warrants.

                                      -10-


COMMON STOCK

VOTING

         The holders of our common stock are entitled to one vote for each share
held of record on all matters submitted to a vote of stockholders. Our
certificate of incorporation and by-laws do not provide for cumulative voting
rights in the election of directors. Accordingly, holders of a majority of the
shares of common stock entitled to vote in any election of directors may elect
all of the directors standing for election.

DIVIDENDS

         Holders of common stock are entitled to receive ratably those dividends
as may be declared by our board of directors out of funds legally available for
that purpose.

RIGHTS ON LIQUIDATION

         In the event of our liquidation, dissolution or winding up, holders of
common stock are entitled to share ratably in the assets remaining after payment
of liabilities.

PRE-EMPTIVE OR REDEMPTION RIGHTS

         Holders of common stock have no preemptive, conversion or redemption
rights. All of the outstanding shares of common stock are fully-paid and
nonassessable.

PREFERRED STOCK

         Our board of directors has the authority to issue up to 6,000,000
shares of preferred stock from time to time in one or more series. Our board has
the authority to establish the number of shares to be included in each series,
and to fix the designations, powers, preferences and rights of the shares of
each series and the applicable qualifications, limitations or restrictions. The
issuance of preferred stock may have the effect of delaying or preventing a
change in control. The issuance of preferred stock could decrease the amount of
earnings and assets available for distribution to the holders of common stock,
if any, or could adversely affect the rights and powers, including voting
rights, of the holders of the common stock. In certain circumstances, the
issuances could have the effect of decreasing the market price of the common
stock.

         As of the date of this prospectus, we have not designated any shares of
preferred stock other than the series A, B, C, D and E preferred stock, all of
which have been fully converted into common stock.

ANTI-TAKEOVER CONSIDERATIONS

         Our certificate of incorporation authorizes the issuance of up to
6,000,000 shares of $0.01 par value preferred stock. The issuance of preferred
stock with such rights could have the effect of limiting stockholder
participation in certain transactions such as mergers or tender offers and could

                                      -11-


discourage or prevent a change in our management. We have no present intention
to issue any additional preferred stock.

         We have a classified or staggered board of directors which limits an
outsider's ability to effect a rapid change of control of our board. In
addition, at the 1998 Annual Meeting of Stockholders held on September 24, 1998,
our stockholders approved measures to amend our certificate of incorporation and
by-laws, where applicable, to:

         o        implement an advance notice procedure for the submission of
                  director nominations and other business to be considered at
                  annual meetings of stockholders;

         o        permit only the President, the Vice Chairman of our board, the
                  Secretary or our board of directors to call special meetings
                  of stockholders and to limit the business permitted to be
                  conducted at such meetings to be brought before the meetings
                  by or at the direction of our board;

         o        provide that a member of our board of directors may only be
                  removed for cause by an affirmative vote of holders of at
                  least 66 2/3% of the voting power of the then outstanding
                  shares entitled to vote generally in the election of directors
                  voting together as a single class;

         o        fix the size of our board of directors at a maximum of twelve
                  directors, with the authorized number of directors set at ten,
                  and our board of directors having the sole power and authority
                  to increase or decrease the number of directors acting by an
                  affirmative vote of at least a majority of the total number of
                  authorized directors most recently fixed by our board of
                  directors;

         o        provide that any vacancy on the board may be filled for the
                  unexpired term (or for a new term in the case of an increase
                  in the size of the board) only by an affirmative vote of at
                  least a majority of the remaining directors then in office
                  even if less than a quorum, or by the sole remaining director;

         o        eliminate stockholder action by written consent;

         o        require the approval of holders of 80% of the then outstanding
                  voting stock and/or the approval of 66 2/3% of the directors
                  for certain corporate transactions; and

         o        require an affirmative vote of 66 2/3% of the voting stock in
                  order to amend or repeal any adopted amendments to the
                  certificate of incorporation and bylaws adopted at the
                  meeting.

         Those measures combined with the ability of our board of directors to
issue "blank check" preferred stock and the staggered terms of the members of
our board of directors, could have the effect of delaying, deterring or
preventing a change in control without any further action by the stockholders.
In addition, the issuance of preferred stock, without stockholder approval, on
such terms as our board may determine, could adversely affect the voting power
of the holders of the common stock, including the loss of voting control to
others.

                                      -12-


TRANSFER AGENT AND REGISTRAR

         Continental Stock Transfer & Trust Company is our Transfer Agent and
Registrar for our common stock.

                              PLAN OF DISTRIBUTION

         The selling stockholder and its pledgees, donees, transferees and other
subsequent owners, may offer its shares at various times in one or more of the
following transactions:

        o         on any U.S. securities exchange on which our common stock may
                  be listed at the time of sale
        o         in the over-the-counter market
        o         in privately negotiated transactions
        o         in connection with short sales; or
        o         in a combination of any of the above transactions.

         The selling stockholder may offer its shares of common stock at
prevailing market prices at the time of sale, at prices related to those
prevailing market prices, at negotiated prices or at fixed prices.

         The selling stockholder may also sell the shares under Rule 144 instead
of under this prospectus, if Rule 144 is available for those sales.

         The transactions in the shares covered by this prospectus may be
effected by one or more of the following methods:

         o        ordinary brokerage transactions and transactions in which the
                  broker solicits purchasers;
         o        purchases by a broker or dealer as principal, and the resale
                  by that broker or dealer for its account under this
                  prospectus, including resale to another broker or dealer;
         o        block trades in which the broker or dealer will attempt to
                  sell the shares as agent but may position and resell a portion
                  of the block as principal in order to facilitate the
                  transaction; or
         o        negotiated transactions between selling stockholders and
                  purchasers without a broker or dealer.

         The selling stockholder and any broker-dealers or other persons acting
on the behalf of parties that participate in the distribution of the shares may
be deemed to be underwriters. Any commissions or profits they receive on the
resale of the shares may be deemed to be underwriting discounts and commissions
under the Securities Act.

         As of the date of this prospectus, we are not aware of any agreement,
arrangement or understanding between any broker or dealer and any of the selling
stockholders with respect to the offer or sale of the shares under this
prospectus.

                                      -13-


         We have advised the selling stockholder that during the time it is
engaged in distributing shares covered by this prospectus, it must comply with
the requirements of the Securities Act and Rule 10b-5 and Regulation M under the
Exchange Act. Under those rules and regulations, it:

         o        may not engage in any stabilization activity in connection
                  with our securities;
         o        must furnish each broker which offers common stock covered by
                  this prospectus with the number of copies of this prospectus
                  which are required by each broker; and
         o        may not bid for or purchase any of our securities or attempt
                  to induce any person to purchase any of our securities other
                  than as permitted under the Exchange Act.

                 INDEMNIFICATION FOR SECURITIES ACT LIABILITIES

         Section 145 of the Delaware General Corporation Law allows a company to
indemnify its directors and officers against expenses, judgments, fines and
amounts paid in settlement under the conditions and limitations described in the
law. Our certificate of incorporation authorizes us to indemnify our officers,
directors and other agent to the fullest extent permitted under Delaware law.

         Our certificate of incorporation provides that a director is not
personally liable for monetary damages to us or our stockholders for breach of
his or her fiduciary duties as a director. A director will be held liable for a
breach of his or her duty of loyalty to us or our stockholders, his or her
intentional misconduct or willful violation of law, actions or in actions not in
good faith, an unlawful stock purchase or payment of a dividend under Delaware
law, or transactions from which the director derives an improper personal
benefit. This limitation of liability does not affect the availability of
equitable remedies against the director including injunctive relief or
rescission.

         We have purchased a directors and officers liability and reimbursement
policy that covers liabilities of our directors and officers arising out of
claims based upon acts or omissions in their capacities as directors and
officers.

        Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to our directors, officers and controlling persons pursuant
to the foregoing provisions, or otherwise, we have been advised that in the
opinion of the SEC such indemnification is against public policy as expressed in
the Securities Act and is, therefore, unenforceable.

                                  LEGAL MATTERS

        Jenkens & Gilchrist Parker Chapin LLP, New York, New York, a stockholder
of our company, will pass upon the validity of the securities offered hereby.
Martin Eric Weisberg, Esq., a member of the firm, is our Secretary, one of our
Directors, and a stockholder in our company.

                                     EXPERTS

        The financial statements incorporated in this prospectus by reference to
the Annual Report on Forms 10-K/A and 10-KSB/A for the years ended December 31,
2000 and 1999, respectively, have


been so incorporated in reliance on the report of Grant Thornton LLP,
independent certified public accountants, given on the authority of said firm as
experts in auditing and accounting.


                                      -14-




=========================================================     ======================================================
                                                                                 

WE HAVE NOT AUTHORIZED ANY DEALER, SALESPERSON OR ANY
OTHER PERSON TO GIVE ANY INFORMATION OR TO REPRESENT
ANYTHING OTHER THAN THOSE CONTAINED IN THIS
PROSPECTUS IN CONNECTION WITH THE OFFER CONTAINED
HEREIN, AND, IF GIVEN OR MADE, YOU SHOULD NOT RELY
UPON SUCH INFORMATION OR REPRESENTATIONS AS HAVING
BEEN AUTHORIZED BY XYBERNAUT CORPORATION. THIS PROSPECTUS
DOES NOT CONSTITUTE AN OFFER OF ANY SECURITIES OTHER                                1,895,364
THAN THOSE TO WHICH IT RELATES OR AN OFFER TO SELL, OR
A SOLICITATION OF AN OFFER TO BUY, THOSE TO WHICH IT
RELATES IN ANY STATE TO ANY PERSON TO WHOM IT IS NOT                         SHARES OF COMMON STOCK
LAWFUL TO MAKE SUCH OFFER IN SUCH STATE. THE DELIVERY
OF THIS PROSPECTUS AT ANY TIME DOES NOT IMPLY THAT THE
INFORMATION HEREIN IS CORRECT AS OF ANY TIME AFTER THE
DATE OF THIS PROSPECTUS.

                                                                              XYBERNAUT CORPORATION

                   TABLE OF CONTENTS

                                                  Page
                                                  ----

Risk Factors.........................................2
Where You Can Find More
        Information About Us.........................6
Use of Proceeds......................................7
Dilution.............................................7
Selling Stockholders ................................8
Description of Securities............................9
Plan of Distribution ...............................12
Indemnification for Securities
        Act Liabilities.............................13
Legal Matters.......................................13
Experts ............................................13                            ____________

                                                                                   PROSPECTUS

                                                                                  ------------

                                                                         _________________________, 2001

=========================================================     ======================================================



                                                 PART II

                                  INFORMATION NOT REQUIRED IN PROSPECTUS

         ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

                  The following table sets forth the various expenses which will
         be paid by us in connection with the issuance and distribution of the
         securities being registered on this registration statement. The selling
         stockholders will not incur any of the expenses set forth below. All
         amounts shown are estimates.

                  Filing fee for registration statement.........$      1,684.90
                  Legal fees and expenses                       $     10,000.00
                  Accounting expenses...........................$      5,000.00
                                                                ---------------
                  Total.........................................$     16,684.90
                                                                ===============

         ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

                  Section 145 of the General Corporation Law of the State of
         Delaware (the "DGCL") provides, in general, that a corporation
         incorporated under the laws of the State of Delaware, such as the
         registrant, may indemnify any person who was or is a party or is
         threatened to be made a party to any threatened, pending or completed
         action, suit or proceeding (other than a derivative action by or in the
         right of the corporation) by reason of the fact that such person is or
         was a director, officer, employee or agent of the corporation, or is or
         was serving at the request of the corporation as a director, officer,
         employee or agent of another enterprise, against expenses (including
         attorneys' fees), judgments, fines and amounts paid in settlement
         actually and reasonably incurred by such person in connection with such
         action, suit or proceeding if such person acted in good faith and in a
         manner such person reasonably believed to be in or not opposed to the
         best interests of the corporation, and, with respect to any criminal
         action or proceeding, had no reasonable cause to believe such person's
         conduct was unlawful. In the case of a derivative action, a Delaware
         corporation may indemnify any such person against expenses (including
         attorneys' fees) actually and reasonably incurred by such person in
         connection with the defense or settlement of such action or suit if
         such person acted in good faith and in a manner such person reasonably
         believed to be in or not opposed to the best interests of the
         corporation, except that no indemnification will be made in respect of
         any claim, issue or matter as to which such person will have been
         adjudged to be liable to the corporation unless and only to the extent
         that the Court of Chancery of the State of Delaware or any other court
         in which such action was brought determines such person is fairly and
         reasonably entitled to indemnity for such expenses.

         Our certificate of incorporation provides that directors will not be
personally liable for monetary damages to us or our stockholders for breach of
fiduciary duty as a director, except for liability resulting from a breach of
the director's duty of loyalty to us or our stockholders, intentional



misconduct or willful violation of law, actions or inactions not in good faith,
an unlawful stock purchase or payment of a dividend under Delaware law, or
transactions from which the director derives improper personal benefit. Such
limitation of liability does not affect the availability of equitable remedies
such as injunctive relief or rescission. Our certificate of incorporation also
authorizes us to indemnify our officers, directors and other agents, by bylaws,
agreements or otherwise, to the fullest extent permitted under Delaware law. We
have entered into an indemnification agreement with each of our directors and
officers which may, in some cases, be broader than the specific indemnification
provisions contained in our certificate of incorporation or as otherwise
permitted under Delaware law. Each indemnification agreement may require us,
among other things, to indemnify such officers and directors against certain
liabilities that may arise by reason of their status or service as a director or
officer, against liabilities arising from willful misconduct of a culpable
nature, and to obtain directors' and officers' liability insurance if available
on reasonable terms.

         We maintain directors and officers liability policies with SPMI
(Lloyd's of London) and North American Specialty (Swiss Reinsurance) that
contain a combined limit of liability of $5,000,000 per policy year.

ITEM 16.  EXHIBITS.

NUMBER            DESCRIPTION OF EXHIBIT

4.1      Form of Warrant issued to Eva Holdings Limited
4.2      Form of Common Stock and Warrant Purchase Agreement, dated as of June
         30, 2001, between Eva Holdings Limited and Xybernaut Corporation
4.3      Form of Registration Rights Agreement, dated as of June 30, 2001,
         between Eva Holdings Limited and Xybernaut Corporation
4.4      Form of Warrant issued to DaVinci International Limited
4.5      Form of Warrant issued to Texas Instruments Incorporated
5.1      Opinion of Jenkens & Gilchrist Parker Chapin LLP
23.1     Consent of Grant Thornton LLP
23.2     Consent of Jenkens & Gilchrist Parker Chapin LLP (included in their
         opinion filed as Exhibit 5.1)

ITEM 17.  UNDERTAKINGS.

         The undersigned registrant hereby undertakes:

         (1) To file, during any period in which offers or sales are being made,
a post-effective amendment to this registration statement;

                  (i) To include any prospectus required by Section 10(a)(3) of
         the Securities Act of 1933;

                                      II-2


                  (ii) To reflect in the prospectus any facts or events arising
         after the effective date of the registration statement (or the most
         recent post-effective amendment thereof) which, individually or in the
         aggregate, represent a fundamental change in the information set forth
         in the registration statement. Notwithstanding the foregoing, any
         increase or decrease in volume of securities offered (if the total
         dollar value of securities offered would not exceed that which was
         registered) and any deviation from the low or high and of the estimated
         maximum offering range may be reflected in the form of prospectus filed
         with the Securities and Exchange Commission pursuant to Rule 424(b) if,
         in the aggregate, the changes in volume and price represent no more
         than 20 percent change in the maximum aggregate offering price set
         forth in the "Calculation of Registration Fee" table in the effective
         registration statement.

                  (iii) To include any material information with respect to the
         plan of distribution not previously disclosed in the registration
         statement or any material change to such information in the
         registration statement;

         (2) That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment will be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such securities at that time will be deemed to be the initial bona
fide offering thereof.

         (3) To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination of
the offering.

         Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable.

         In the event that a claim for indemnification against such liabilities
(other than the payment by the registrant of expenses incurred or paid by a
director, officer or controlling person of the registrant in the successful
defense of any action, suit or proceeding) is asserted by such director, officer
or controlling person in connection with the securities being registered, the
registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as
expressed in the Securities Act and will be governed by the final adjudication
of the issue.

         The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement will be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time will be deemed to be the initial bona fide offering thereof.


                                      II-3



                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Fairfax, Commonwealth of Virginia on October 15,
2001.

                                       XYBERNAUT CORPORATION

                                        By: /s/ Edward G. Newman
                                          --------------------------------------
                                          Edward G. Newman
                                          President, Chief Executive Officer and
                                          Chairman of the Board of Directors


                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that each individual whose signature
appears below constitutes Edward G. Newman and Steven A. Newman, each acting
alone, his true and lawful attorney-in-fact and agent, with full power of
substitution and resubstitution, for him and in his name, place and stead, in
any and all capacities, to sign any and all amendments to this Form S-3 and to
file the same with exhibits thereto, and all documents in connection therewith,
with the Securities and Exchange Commission, granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done in
and about the premises, as fully to all intents and purposes as he might or
could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents or any of them, or their or is substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

         Pursuant to the requirements of the Securities Act of 1933, this
registration statement on Form S-3 has been signed below by the following
persons in the capacities indicated on October 15, 2001.

                 SIGNATURE                                            TITLE

                                          
/s/ Edward G. Newman                          President, Chief Executive Officer and Chairman of
------------------------------------          the Board of Directors
Edward G. Newman


/s/ Steven A. Newman                          Executive Vice President and Vice Chairman of the
------------------------------------          Board of Directors
Steven A. Newman, M.D.


*/s/ Steven A. Newman                         Senior Vice President, Chief Financial Officer and
------------------------------------          Treasurer
John F. Moynahan


                                      II-4


*/s/ Steven A. Newman                         Director
------------------------------------
Eugene J. Amobi


*/s/ Steven A. Newman                         Director
------------------------------------
Keith P. Hicks


*/s/ Steven A. Newman                         Director
------------------------------------
Phillip E. Pearce


*/s/ Steven A. Newman                         Director
------------------------------------
James J. Ralabate


*/s/ Steven A. Newman                         Director
------------------------------------
Lt. Gen. Harry E. Soyster


*/s/ Steven A. Newman                         Executive Vice President and Director
------------------------------------
Kazuyuki Toyosato


*/s/ Steven A. Newman                         Senior Vice President and Director
------------------------------------
Dr. Edwin Vogt

                                              Secretary and Director
*/s/ Steven A. Newman
------------------------------------
Martin Eric Weisberg, Esq.


* By: Steven A. Newman
      Attorney-in-fact

                                      II-5




                                 SECURITIES AND
                                    EXCHANGE
                                   COMMISSION

                             WASHINGTON, D.C. 20549


                                  -------------




                                   EXHIBITS TO

                                    FORM S-3

                             REGISTRATION STATEMENT

                                      UNDER

                           THE SECURITIES ACT OF 1933


                                  -------------



                              XYBERNAUT CORPORATION
                       (EXACT NAME OF ISSUER AS SPECIFIED
                                 IN ITS CHARTER)



                                OCTOBER 15, 2001




                                      E-1




NUMBER   DESCRIPTION OF EXHIBIT

4.1      Form of Warrant issued to Eva Holdings Limited
4.2      Form of Common Stock and Warrant Purchase Agreement, dated as of June
         30, 2001, between Eva Holdings Limited and Xybernaut Corporation
4.3      Form of Registration Rights Agreement, dated as of June 30, 2001,
         between Eva Holdings Limited and Xybernaut Corporation
4.4      Form of Warrant issued to DaVinci International Limited
4.5      Form of Warrant issued to Texas Instruments Incorporated
5.1      Opinion of Jenkens & Gilchrist Parker Chapin LLP
23.1     Consent of Grant Thornton LLP
23.2     Consent of Jenkens & Gilchrist Parker Chapin LLP (included in their
         opinion filed as Exhibit 5.1)

                                       E-2