XYBERNAUT CORP
S-3, 1998-12-14
COMPUTER COMMUNICATIONS EQUIPMENT
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   As filed with the Securities and Exchange Commission on December _____, 1998
                                                 Registration No. 333-________
- --------------------------------------------------------------------------------


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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


                                    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.
                       Parker Chapin Flattau & Klimpl, LLP
                           1211 Avenue of the Americas
                            New York, New York 10036
                                 (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. |_|

<PAGE>
<TABLE>
<CAPTION>



                         CALCULATION OF REGISTRATION FEE

                                                             Proposed Maximum     Proposed Maximum   Amount of
        Title of Each Class                  Amount to be     Offering Price     Aggregate Offering Registration
  of Securities to be Registered           Registered (1)        per Share             Price            Fee
<S>                                      <C>              <C>                    <C>             <C>
Common Stock, $.01 par value per share         593,201            $5.28 (3)         $3,132,101        $870.72
Common Stock, $.01 par value per share          12,500 (2)        $9.58 (4)           $119,750         $33.29
Common Stock, $.01 par value per share          12,500 (2)        $9.09 (4)           $113,625         $31.59
Common Stock, $.01 par value per share          12,500 (2)       $13.05 (4)           $163,125         $45.34
- ---------------------------------------------------------------------------------------------------------------
Total Registration Fee.................................................................................$980.95
===============================================================================================================
</TABLE>

(1)      Represents  the shares of Common Stock being  registered  for resale by
         the Selling Stockholder.

(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 the Company upon  exercise of Warrants  issued in
         connection with a Private Placement with the Selling Stockholder.  Such
         number of shares is subject to adjustment and could be materially  less
         than such  estimated  amount  depending  upon  factors  that  cannot be
         predicted by the Company at this time,  including,  among  others,  the
         future  market  price of the Common  Stock.  This  presentation  is not
         intended to  constitute a prediction  as to the future  market price of
         the Common Stock or as to the number of shares of Common Stock issuable
         upon  exercise of the Warrants.  See "Risk  Factors --  Dilution";  and
         "Description of Securities."

(3)      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 ($5.28) of the bid
         ($5.25)  and  asked  ($5.31)  price on the  Nasdaq  SmallCap  Market on
         December 9, 1998.

(4)      Estimated  solely for the purpose of calculating the  registration  fee
         pursuant to Rule 457(g) of the  Securities  Act,  based on the exercise
         price of the Warrants.

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.

<PAGE>



The  information  in this  Prospectus  is not  complete.  We may not sell  these
securities  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 DECEMBER __, 1998

PROSPECTUS
                                 630,701 Shares*

                              XYBERNAUT CORPORATION

         HSBC James Capel Canada, Inc., a shareholder of Xybernaut  Corporation,
is offering for sale 1,070,701  Shares of Common Stock of the Company under this
Prospectus.  We issued the Shares and the Warrants covered by this Prospectus to
the Selling Stockholder under a private placement agreement.

         The Selling  Stockholder  may offer its Shares of the  Company  through
public or  private  transactions,  on or off the  United  States  exchanges,  at
prevailing market prices, or at privately negotiated prices.

         The Selling  Stockholder will receive all net proceeds from the sale of
the Shares. Accordingly, we will not receive any proceeds from the resale of the
Shares. We will receive proceeds from the exercise of the Warrants.  We will use
such net  proceeds  for general  corporate  purposes.  We will bear all expenses
relating to this registration  except for brokerage or underwriting  commissions
and expenses, if any, which will be paid by the Selling Stockholder.


NASDAQ SmallCap Market Symbol: "XYBR"

         On December 9, 1998, the closing price of one share of our Common Stock
on the NASDAQ SmallCap Market was $5.31.

         *Pursuant to Rule 416 under the  Securities  Act of 1933, the shares of
Common Stock  offered  hereby  include such  presently  indeterminate  number of
shares of Common Stock issuable to the Selling  Stockholder  under the Warrants.
The number of such shares is subject to adjustment and could be materially  less
than estimated  depending  upon various  factors,  including,  the future market
price of the Common Stock.

         Our executive offices are located at 12701 Fair Lakes Circle,  Fairfax,
Virginia 22033 and our telephone number is (703) 631-6925.  Our telephone number
is (703) 631-6925, and our e-mail address is [email protected].



The  securities  offered  hereby  involve  a high  degree  of risk.  You  should
carefully  consider the factors  described  under the caption "risk  factors" on
page 5 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 ______, 1998

<PAGE>
                         _____________________________


                  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
from the SEC's Website at "http://www.sec.gov."

         We have  filed  with the SEC a  registration  statement  on Form S-3 to
register  shares  of  our  Common  Stock.   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 may  refer to the
registration  statement and to the exhibits and schedules  filed as part of that
registration  statement.  You can review and copy the registration statement and
its exhibits and schedules at the public reference facilities  maintained by the
SEC as described above. The registration  statement,  including its exhibits and
schedules, is also available on the SEC's web site.

         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.

         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
considered to be a part of this  prospectus,  and information that we file later
with the SEC  will  automatically  update  or  supersede  this  information.  We
incorporate  by reference  the  documents  listed below and any future filing we
will  make  with  the SEC  under  Sections  13(a),  13(c),  14 or  15(d)  of the
Securities Exchange Act of 1934:

         1. Annual Report on Form 10-KSB for the fiscal year ended  December 31,
         1997;  2.  Quarterly  Reports on Form 10-QSB for the period ended March
         31, 1998, and Forms 10-
                  QSB and  10-QSB/A  for the  periods  ended  June 30,  1998 and
         September  30,  1998;  and  3.  Registration  Statement  on  Form  S-3,
         Commission File Number 333-___________.

         You may request a copy of these  filings,  at no cost, by writing to us
at 12701 Fair Lakes Circle, Fairfax, Virginia 22033, (703) 631-6925.  Attention:
W. Jeff Pagano.

                             _____________________


         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 materailly 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.

                                      - 2 -

<PAGE>



         We have not authorized  any dealer,  salesperson or any other person to
give any information or to represent  anything not contained in this Prospectus.
You must not rely on any  unauthorized  information.  This  Prospectus  does not
offer to sell or buy any shares in any  jurisdiction  where it is unlawful.  The
information in this Prospectus is current as of December ____, 1998.

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

                                TABLE OF CONTENTS

Where You Can Find More Information About Us............................2
Prospectus Summary......................................................4
Risk Factors............................................................5
Use of Proceeds........................................................12
Dividend Policy........................................................13
Selling Stockholders ..................................................13
Description of Securities..............................................14
Delaware Business Combination
     Provisions........................................................16
Plan of Distribution ..................................................18
Indemnification for Securities Act Liabilities.........................19
Legal Matters..........................................................20
Experts ...............................................................20

                                      - 3 -

<PAGE>



                               PROSPECTUS SUMMARY

         This summary  highlights some information from this Prospectus.  It may
not contain all of the information important to you. To understand this offering
fully,  you should  read the entire  Prospectus  carefully,  including  the risk
factors.

         Please note that  references in this  Prospectus to "we," "our" or "us"
refer to Xybernaut Corporation not to the Selling Stockholder.

                                  THE OFFERING
<TABLE>
<CAPTION>


<S>                                           <C>                           
Securities Offered by the Selling 
Stockholder (1)................................  630,701 Shares of Common Stock

Common Stock Outstanding:
         Before the Offering (2)(3)............  21,321,627
         After the Offering (3)................  21,359,127
Nasdaq Symbol..................................  XYBR
Use of Proceeds................................  The Selling Stockholder will receive all net proceeds
                                                 from the sale of the Shares.  Accordingly, we will not
                                                 receive any proceeds from the resale of the Shares.  We
                                                 will receive proceeds from the exercise of the Warrants.
                                                 We will use such net proceeds for general corporate
                                                 purposes.  We will bear all expenses relating to this
                                                 registration except for brokerage or underwriting
                                                 commissions and expenses, if any, which will be paid by
                                                 the Selling Stockholder.

Risk Factors...................................  The securities offered hereby involve a high degree of
                                                 risk.  You should carefully consider the factors described
                                                 under the caption "risk factors."
- ---------------------
</TABLE>

(1)      The  630,701  shares of Common  Stock  offered  under  this  Prospectus
         consist  of 593,201  outstanding  shares  and  37,500  shares  issuable
         pursuant to the exercise of Warrants that may be sold from time to time
         by the Selling Stockholder.

(2)      Includes  593,201  shares of Common  Stock  covered by this  Prospectus
         which are issued and outstanding as of the date hereof.

(3)      Based on  shares of Common  Stock  outstanding  at  December  9,  1998,
         includes  37,500  shares  of  Common  Stock  issuable  pursuant  to the
         exercise of  Warrants,  and does not include  (1)  1,554,550  shares of
         Common Stock  reserved for  issuance  upon the exercise of  outstanding
         options  granted  pursuant to Rule 701 of the Securities  Act, our 1996
         Omnibus Stock  Incentive  Plan and the 1997 Stock  Incentive  Plan; (2)
         5,173,402 shares of Common Stock reserved for issuance upon exercise of
         outstanding  warrants to purchase  Common Stock,  (3) 117,660 shares of
         Common Stock registered in connection with the Series C Preferred Stock
         but  unissued,  (4)  539,480  shares  of  Common  Stock  registered  in
         connection  with the April 1998 Private  Equity Line of Credit  Private
         Placement but unissued, and (5) 420,000 shares of Common Stock reserved
         for issuance upon exercise of an option granted pursuant to our initial
         public offering to purchase  210,000 shares of Common Stock and 210,000
         redeemable warrants,  each such warrant to purchase one share of Common
         Stock at an exercise  price of $9.075.  See "Risk  Factors -- Effect of
         Possible Non-Cash Future Charge" and " -- Securities  Issuable Pursuant
         to Options, Warrants and the Unit Purchase Option."

                                      - 4 -

<PAGE>

                                  RISK FACTORS

         Before  you buy shares of our  Common  Stock,  you should be aware that
there are various risks associated with such purchase, including those described
below.  You should consider  carefully these risk factors,  together with all of
the other information in this Prospectus before you decide to purchase shares of
our Common Stock.

         Some of the information in this Prospectus may contain  forward-looking
statements.  Such  statements  can be identified  by the use of  forward-looking
words  such as "may,"  "will,"  "except,"  "anticipate,"  "intend,"  "estimate,"
"continue,"  "believe," or other similar words.  These statements discuss future
expectations,  contain  projections  of our  future  results  of  operations  or
financial  condition  or  state  other   "forward-looking"   information.   When
considering such statements,  you should keep in mind the risk factors and other
cautionary statements in this Prospectus. The risk factors noted in this section
and other factors  noted in this  Prospectus  could cause our actual  results to
differ materially from those contained in any forward-looking statements.

History and Expectation of Future Losses; Need for Additional Financing

         We were  incorporated  in  October  1990 and  commenced  operations  in
November 1992. We have incurred the following losses since 1994:


         Fiscal year ended:
             o  March 31, 1994                              $47,352
             o  March 31, 1995                           $1,303,892
             o  December 31, 1996                        $5,238,536
             o  December 31, 1997                        $9,479,966
         Nine months  ended:
             o  September 30, 1998                       $7,272,779

         We intend to conduct significant  additional marketing and distribution
of our  products  that,  together  with our existing  research  and  development
programs,  are  expected  to  require  substantial  funding  and  to  result  in
continuing operating losses.  However, we cannot assure you that,  regardless of
our  efforts  and  the  expenditure  of  substantial   funds,  we  will  achieve
substantial sales of any of our products, that our operations will be profitable
or that we will be able to meet the competitive demands of the industry in which
we operate.

Going Concern Qualification

         The report of our  independent  accountants  on our  December  31, 1997
consolidated  financial  statements contains an explanatory  paragraph regarding
our ability to continue as a going concern.  The independent  accountants  cited
several factors as raising  substantial doubt as to our ability to continue as a
going  concern,  including,  our  history of  operating  losses and our  working
capital  deficit.  We cannot  assure you that we will ever  achieve  significant
revenues or that our operations will be profitable.

Liquidity; Working Capital Needs

         We may  obtain  a  working  capital  line  of  credit  and/or  complete
additional  financings in order to meet working  capital cash  requirements.  In
addition, we may exercise a put option to sell shares of our Common Stock in the
aggregate  principal  amount of  $7,000,000  available to us under an April 1998
Private Equity Line of Credit Agreement.  However,  we cannot assure you that we
will be able to raise  additional  capital,  obtain funds from a working capital
line of credit,  or that the sale of Common Stock under the Private  Equity Line
of Credit  Agreement  will be  deemed  advisable  at such  times as funds may be
required.  We  could  be  required  to  curtail  materially,  suspend  or  cease
operations if we are unable to raise or obtain the needed working capital.

                                      - 5 -

<PAGE>

Dilution; Impact of the Conversion of Outstanding Convertible Securities

         The  net  tangible  value  of your  Shares  will be  diluted  upon  the
conversion  of  outstanding  options,  warrants and the issuance of Common Stock
under a repricing arrangement we entered into in connection with our exercise of
a  $3,000,000  Put Option  under the April 1998  Private  Equity  Line of Credit
Agreement (the "Initial Put Option"). Specifically, certain options and warrants
(other than the Warrants) are  convertible  into Common Stock at discounts  from
future  market  prices of the  Common  Stock.  Such  discounts  could  result in
substantial  dilution  to  existing  holders of Common  Stock.  The sale of such
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.

         At the  date of this  Prospectus,  we have  reserved  an  aggregate  of
7,185,457  shares of Common Stock for issuance  upon  exercise of the  following
outstanding options and warrants:

  o      options to purchase 1,554,550 shares at an exercise price between $1.37
         and $6.00 per share;
  o      warrants to purchase  627,500 shares at an exercise price between $1.76
         and $18.00 per share;
  o      warrants to purchase 4,583,402 shares at an exercise price of $9.00 per
         share; and
  o      210,000  Units  (the  "Units"),  each unit  consisting  of one share of
         Common Stock and one  Redeemable  Warrant (a  "Redeemable  Warrant") to
         purchase  one share of  Common  Stock,  at a price of  $9.075  per Unit
         during a period of four years  commencing July 18, 1996. The Redeemable
         Warrants included in the Units are exercisable at $12.60 per share.

         During the terms of the outstanding  options,  Redeemable  Warrants and
the Unit Purchase  Option,  we must give the holders the  opportunity  to profit
from a rise in the  market  price of the  Common  Stock.  The  existence  of the
options,  the  Redeemable  Warrants and the Unit  Purchase  Option may adversely
affect the terms on which we may obtain additional  equity financing.  Moreover,
the holders are likely to exercise  their  rights to acquire  Common  Stock at a
time when we would otherwise be able to obtain capital with more favorable terms
than we could obtain through the exercise of such securities.

         In addition, we agreed to certain repricing  arrangements in connection
with our exercise of the Initial Put Option.  Under that arrangement,  one-sixth
of the 545,454  shares of Common Stock (the "Initial Put Shares") we issued upon
exercise of the Initial Put Option, are subject to monthly repricing  commencing
on September 30, 1998. Under the repricing calculation,  if the closing price of
the Common Stock on the trading date immediately preceding the repricing date is
less than $7.20 per share,  the shares of Common Stock subject to repricing will
be repriced at the lowest  closing bid price of the Common Stock for the 30 days
preceding such repricing date (the "Initial Put Reset Price").  We will issue to
the investors  such number of shares (the "Initial Put Repricing  Shares") equal
to the difference  between (a) the quotient of 500,000 and the Initial Put Reset
Price and (b) the number of shares  subject to repricing.  We will not issue any
shares of Common Stock under the repricing  arrangement if the Initial Put Reset
Price is equal to or greater than $5.50. As of the date of this  Prospectus,  we
have issued 55,880 shares of our Common Stock under the repricing arrangement.

Uncertainty of Market Development and Product Acceptance

         The mobile computing market is emerging and relatively undeveloped.  We
sold our first  Mobile  Assistant(R)  in 1993.  From  December  31, 1997 through
September 30, 1998 have sold and delivered Mobile Assistant(R) systems valued at
approximately $615,000. We commenced delivery of the Pentium(R) Mobile Assistant
P-133(TM) in August 1997 and expect to commence delivery of Mobile  Assistant(R)
IV, a Pentium 233 MHZ based system ("MA IV"), in the quarter ending December 31,
1998. In September 1997, we announced the introduction of our linkAssist(TM) and
webAssist(TM) software products.

         The size of the mobile computing market is currently limited by (1) the
high unit prices of mobile  computers as compared to laptops and other  portable
computers,  (2) the  specialized  nature  of each  application  and the need for
custom applications and system  integration,  and (3) the limited supply to date
of components  for completed  systems.  The potential size of the market will be
limited further by the rate at which prospective  customers recognize and accept
the functions and capabilities of integrated mobile

                                      - 6 -

<PAGE>

computing  systems.  We cannot assure you that a significant market will develop
for  mobile  computing  systems  or,  that,  if a market  develops,  the  Mobile
Assistant(R)  Series and any of our other  products  will  become a  significant
factor in any market that  develops.  In addition,  we cannot  guarantee that we
will obtain the working  capital needed to meet the  competitive  demands of the
industry in which we operate.  See "Risk  Factors - Liquidity;  Working  Capital
Needs; -- Competition."

         In  addition,   we  believe  that  any  product   acceptance   will  be
substantially dependent upon educating the commercial, healthcare, education and
military markets as to the capabilities,  characteristics, benefits and efficacy
of the  Mobile  Assistant(R)  Series  and our  other  products,  of which we can
provide no assurance.

Competition

         The computer industry is intensely  competitive and is characterized by
rapid  technological  advances,  evolving  industry  standards and technological
obsolescence.  Many of our current  competitors have longer operating  histories
and greater financial,  technical,  sales, marketing and other resources than we
do.  Several other  companies,  including  Computing  Devices  International,  a
division of Ceridian Corporation,  ViA Inc., Texas Microsystems,  Telxon, Norand
and Teltronics,  Inc., a subsidiary of Interactive Solutions, Inc., Raytheon and
a consortium of Litton and TRW, are engaged in the  manufacture  and development
of body-mounted or hand-held computing systems that do or could compete with the
Mobile Assistant(R) Series.  Personal digital assistants and laptop and notebook
computers also are products that could compete  against the Mobile  Assistant(R)
in applications  where  hands-free,  voice-activated  operation is not required.
Many of these computers are  manufactured by major domestic and foreign computer
manufacturers  which  possess  far more  resources  than we do and  which can be
expected  to compete  vigorously  with us. We cannot  assure you that we will be
able to compete  successfully  against  our  competitors,  that we will have the
working capital needed to incorporate the constant technological advances in our
products or that  competitive  pressures will not adversely affect our financial
performance.

Dependence upon Suppliers

         We have supplier relationships with Sony Digital Products and Shimadzu,
among  others,  for the  production  of the MA IV system.  We also have  written
agreements with our suppliers for batteries, head-mounted displays and computing
units. Although we believe that we could adapt to any supply interruptions, such
occurrences could necessitate  changes in product design or assembly methods for
the Mobile  Assistant(R)  Series and cause us to experience  temporary delays or
interruptions in supply while we incorporate such changes.  Since the order time
for certain components may range up to approximately three months, we also could
experience  delays or  interruptions  in supply in the event we are  required to
find a new supplier for any of these  components.  Any  disruptions in supply of
necessary  parts and  components  from our key  suppliers  could have a material
adverse  effect on our  results of  operations.  Any future  shortage or limited
allocation  of  components  for the  Mobile  Assistant(R)  could have a material
adverse effect on our organization as a whole.

Currency Fluctuations

         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 expenses,  earnings or assets when local currencies are
translated into U.S. dollars.  We are party to a supplier  arrangement with Sony
Digital  Products for the  production of the MA IV system.  The fees we pay Sony
Digital  Products are paid in Japanese  yen.  Any  weakening of the value of the
U.S.  dollar  against  the  Japanese  yen  could  result in an  increase  in our
production expenses which, if substantial,  could have a material adverse effect
on our financial condition and results of operations.

Substantial Dependence upon Single Product Line;
Possibility of Unsuccessful New Product Development

         Our Mobile Assistant(R) Series currently consists of two products,  the
MA IV,  which is expected to be  available  for sale in late 1998,  and the 133P
model based on a 133 MHZ Intel Pentium(R) processor. The

                                      - 7 -

<PAGE>


Mobile  Assistant(R)  Series are our  principal  products,  and our success will
depend upon its commercial acceptance, which cannot be assured.

         For single unit purchases,  the Mobile  Assistant(R)  133P currently is
priced from $5,000 to $8,995 depending upon the discount and selected  features.
We also are developing  additional  products for the Mobile  Assistant(R) Series
for  introduction  in the future  and  intend to modify the Mobile  Assistant(R)
Series for use in other  applications  and to develop other  products  using our
core  technologies.  As  technological  developments  cause declines in hardware
costs,   we  expect  that  mobile  computer  sales  will  be  driven  by  system
capabilities  and  integration.  However,  we cannot  assure you that the Mobile
Assistant(R) will offer the performance  capabilities or features that customers
will value or that we will have the capital required to modify the design of the
Mobile  Assistant(R) in order to gain customer  acceptance.  In addition,  while
linkAssist(TM)  and our planned software toolkits are intended for use both with
the Mobile  Assistant(R)  Series and  independently,  we cannot guarantee that a
separate market for our existing and planned  software  products will develop or
that any products, if sold, will generate significant revenues or any profits.

         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.  We  cannot  assure  you that we will be  successful  in our  future
product  development  efforts or in  diversifying  our product  line.  See "Risk
Factors - Liquidity; Working Capital Needs."

Uncertain Protection of Patent and Proprietary Rights;
No Assurance of Enforceability or Significant Competitive Advantage

         We consider our patent, trade secrets, and other intellectual  property
and proprietary  information to be important to our business prospects.  We rely
on a  combination  of patent,  trade secret,  copyright  and trademark  laws and
contractual  restrictions  to establish and protect our proprietary  rights.  We
have implemented a trade secret management  program to protect our trade secrets
and proprietary information.  In addition, we have confidentiality and invention
assignment   agreements   with  our   employees,   and   generally   enter  into
non-disclosure  agreements  with  our  suppliers,  VARs,  OEMs  and  actual  and
potential  customers  to  limit  access  to and  disclosure  of our  proprietary
information.

         We have registered our Mobile Assistant(R) and Xybernaut(R)  trademarks
on the  Principal  Register of the United  States  Patent and  Trademark  Office
("Patent  Office")  and the patent  and  trademark  offices  in several  foreign
countries. In April 1994, we obtained U.S. patent number 5,305,244 ("hands-free,
user- supported portable  computers") (the "Patent") for the Mobile Assistant(R)
Series.  We derived most of our revenue for the twelve months ended December 31,
1997 and 1996  and the  nine  months  ended  September  30,  1998 and 1997  from
products  included within the scope of the Patent.  We have notified  several of
our competitors of the existence of the Patent,  which our counsel  believes may
have been  infringed on by some of such  competitors.  We intend to take any and
all  appropriate  measures,  including  legal action,  necessary to maintain and
enforce our rights under the Patent and other patents held by us.

         We have filed twenty patent  applications  covering  various aspects of
computers in general and wearable  computers in particular  since July 1996. Six
of these  patent  applications  have been  issued,  one patent has been  allowed
pending  issuance and thirteen  patents are pending.  We have also filed most of
these applications in European countries, The People's Republic of China, Japan,
Republic of Korea, Republic of China (Taiwan), Canada and Australia. All patents
issued to our employees under pending and future applications have been and will
be assigned to us under existing invention assignments.

         We cannot assure you that our pending patent applications will issue as
patents,  that any issued  patent will provide us with  significant  competitive
advantages or that  challenges  will not be  instituted  against the validity or
enforceability  of any of our  patents.  The cost of  litigation  to uphold  the
validity and prevent  infringement  of patents can be  substantial.  We also can
provide no assurance that others will not independently  develop similar or more
advanced products,  design patentable  alternatives to our products or duplicate
our trade  secrets,  or that our  employees or  suppliers  will not breach their
confidentiality agreements.

                                      - 8 -

<PAGE>

In  addition,  we may be  required,  in some  cases,  to  obtain  licenses  from
third-parties or to redesign our products or processes to avoid infringement.

Dependence upon and Need for Key Personnel

         Our success depends to a significant  extent upon the efforts of senior
management  personnel  and a  group  of  employees  with  longstanding  industry
relationships and technical  knowledge of our business and operations.  The loss
of certain key members of senior  management  and the  inability to replace such
member could have a material adverse effect on our business and operations.  Our
success also will depend upon our ability to attract and retain highly qualified
and experienced management and technical personnel. We face competition for such
personnel from numerous other entities, many of which have significantly greater
resources  than we do.  We  cannot  assure  you  that we will be  successful  in
recruiting  such personnel or that, if recruited,  such persons would succeed in
establishing profitable operations for our organization.

Rapid Technological Change and Risk of Obsolescence

         The  market  for   computer   products   is   characterized   by  rapid
technological  advances,  evolving  industry  standards,  changes  in  end  user
requirements  and  frequent  new product  introductions  and  enhancements.  The
introduction  of products  embodying new  technologies  and the emergence of new
industry  standards  could render our existing  products and products  currently
under development  obsolete and  unmarketable.  Our success will depend upon our
ability to enhance our current products and develop and  successfully  introduce
and sell new products that keep pace with technological developments and respond
to evolving end user requirements. If we do not anticipate or respond adequately
to technological developments,  end user requirements,  or significant delays in
product development or introduction, our competitive position in the marketplace
could be damaged and we could  experience a decrease in  revenues.  We expect to
increase the use of additional  external and internal resources in the near term
to meet these challenges.  However,  we can provide no assurance that we will be
successful  in hiring,  training and  retaining  qualified  product  development
personnel  to meet our needs or that we will be  successful  in  developing  and
marketing new products or product enhancements on a timely basis. Any failure to
successfully develop and market new products and product enhancements would have
a material adverse effect on our results of operations.

Year 2000 Issues

         The Year 2000 Issue is the result of computer  programs  being  written
using two digits rather than four to define the applicable  year. Any of the our
computer programs that have  date-sensitive  software may recognize a date using
"00" as the year 1900 rather than the year 2000.  This could  result in a system
failure or miscalculations causing disruptions of operations,  including,  among
other things, a temporary inability to process  transactions,  send invoices, or
engage in similar normal business activities.

         Based on a recent assessment, we determined that we will be required to
modify or replace  portions of our  software so that our  computer  systems will
properly utilize dates beyond December 31, 1999. We believe that we can mitigate
the Year 2000 Issue with  modifications to existing  software and conversions to
new software. However, if we fail to make such modifications and conversions, or
if we do not make them on a timely  basis,  the Year  2000  Issue  could  have a
material impact on our operations.

         We have contacted all of our significant  suppliers and large customers
to determine the possible effect on our operations of their inability or failure
to remediate  their own Year 2000 Issue.  Our estimate of the costs to remediate
our Year 2000 issue is based on presently  available  information.  However,  we
cannot  guarantee that the systems of other  companies on which our systems rely
will be timely converted,  or that a failure to convert by another company, or a
conversion  that is  incompatible  with our  systems,  would  not have  material
adverse effect on our operations.  We have no exposure to contingencies  related
to the Year 2000 Issue for the products we have sold.

         We will utilize both internal and external  resources to reprogram,  or
replace, and test the software for Year 2000 modifications.  We plan to complete
the Year 2000 project within six months and estimate the total remaining cost of
the Year 2000 project at $6,000.  Approximately $1,700 of the total project cost
is

                                      - 9 -

<PAGE>


attributable  to the purchase of new  software  which will be  capitalized.  The
remaining  $4,300,  which will be expensed as incurred over the next six months,
is not expected to have a material effect on our results of operations. To date,
we have  incurred and  expensed  approximately  $1,000  related to our Year 2000
project.

         Our  estimates  of the date of  completion  and  cost of our Year  2000
project are based on our best  estimates,  which we derived  utilizing  numerous
assumptions  of future events  including the continued  availability  of certain
resources,  third  party  modification  plans and other  factors.  The costs and
completion  date of our Year  2000  project  could  differ  materially  from our
estimates due to the lack of availability and cost of personnel  trained in this
area, our ability to locate and correct all relevant computer codes, and similar
uncertainties.

Effect of Possible Non-Cash Future Charge

         As  a  condition  to  our  initial  public  offering,  certain  of  our
stockholders,  primarily  officers  and  directors,  deposited  an  aggregate of
1,800,000 shares of Common Stock into an escrow account (the "Escrowed Shares").
The Escrowed Shares are subject to the following terms and conditions:

         o    The  Escrowed  Shares  will  be  released   incrementally  over  a
              three-year  period  only  in the  event  our  gross  revenues  and
              earnings  (loss)  per  share  for  the  12-month   periods  ending
              September  30, 1997,  1998 and 1999 equal or exceed  certain gross
              revenue and earnings (loss) per share targets.

         o    If such  per  share  targets  are  not met in any of the  relevant
              12-month  periods and the price of the Common  Stock does not meet
              or  exceed  agreed  upon  price  levels,  certain  amounts  of the
              Escrowed  Shares  will  be  returned  to us for  each  period  and
              canceled.

         o    All the Escrowed  Shares will be released to the  stockholders  if
              the  closing  price of the Common  Stock as reported on The Nasdaq
              SmallCap  Market  following this offering equals or exceeds $11.00
              for 25  consecutive  trading  days  or 30  out  of 35  consecutive
              trading days during the period ending September 30, 1999.

         The difference  between the initial offering price and the market value
(at the time of release) of any Escrowed Shares released will be deemed to be an
additional compensation expense. Such expense, depending on the price per share,
may have the effect of reducing or eliminating  any earnings per share and could
have a negative effect on the market price for our Common Stock.

         We did not meet the targets for escrow  release for  September 30, 1997
and September 30, 1998. As a result,  300,000 and 750,000 shares,  respectively,
were canceled from the escrow pool  resulting in a reduction of 2.1% and 3.6% of
our outstanding shares of Common Stock.

High Concentration of Common Stock Held by Existing Stockholders

         Following  this  offering,   our  executive  officers,   directors  and
principal  stockholders  will, in the aggregate,  beneficially own approximately
31.5% of our outstanding shares of Common Stock. These  stockholders,  if acting
together, will 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 the Company.

Limitation of Liability

         Our  Certificate of  Incorporation  provides  that,  subject to limited
exceptions,  our directors will not be personally liable for monetary damages to
us or our  stockholders  for a breach of fiduciary duty as a director.  Although
such  limitation  of  liability  does not affect the  availability  of equitable
remedies  such as  injunctive  relief or  rescission,  these  provisions  of the
Certificate  of  Incorporation  could  prevent the recovery of monetary  damages
against our directors. See "Indemnification for Securities Act Liabilities."

                                     - 10 -

<PAGE>



Shares Eligible for Future Sale

         Sales of a  substantial  number of shares  of our  Common  Stock in the
public market following this offering could adversely affect the market price of
the  Common  Stock.  Of the  22,338,767  shares  of  Common  Stock  that will be
outstanding  or  registered  for sale  upon  the  completion  of this  offering,
20,291,426 will be freely tradeable without restriction or further  registration
under the Securities Act. This includes:

         o   19,274,286 shares of Common Stock which are issued and outstanding;
         o   117,660  unissued shares  of Common  Stock registered in connection
             with the Series C Preferred Stock, and
         o   899,480  unissued  shares of Common Stock  registered in connection
             with the April 1998 Equity Line of Credit Private Placement.

         The remaining  2,047,341  shares include 750,000 shares of Common Stock
which are "Escrowed  Shares" (see "Effect of Possible  Non-Cash  Future Charge")
and are subject to release on September  30, 1999 if certain  share  targets are
met, and 1,297,341  shares of the Common Stock are  "restricted  securities"  as
that term is defined  in Rule 144  promulgated  under the  Securities  Act.  The
restricted  shares may be sold pursuant to an effective  registration  statement
under the Securities  Act, in compliance  with the exemption  provisions of Rule
144 or pursuant to another exemption under the Securities Act. In the absence of
any agreement to the contrary,  the outstanding restricted Common Stock could be
sold in accordance  with one or more other  exemptions  under the Securities Act
(including  Rule  144).  Rule  144,  as  amended,  permits  sales of  restricted
securities by any person (whether or not an affiliate)  after one year, at which
time  sales  can be  made  subject  to the  Rule's  existing  volume  and  other
limitations and by non-affiliates without adhering to Rule 144's existing volume
or other  limitations  after two years.  Future sales of substantial  amounts of
shares in the public  market,  or the  perception  that such sales could  occur,
could  adversely  affect the price of the shares in any market  that may develop
for the trading of such shares.

No Dividends Anticipated

         We  have  never  paid  any  dividends  on  our  securities  and  do not
anticipate the payment of dividends in the foreseeable future.

Volatility of Stock Price

         The trading price of the Common Stock has been, and may continue to be,
volatile.  Such trading price could be subject to wide  fluctuations in response
to our  announcements  of business and  technical  developments  or those by our
competitors,  quarterly  variations  in operating  results,  and other events or
factors,  including our prospects and  expectations  by investors and securities
analysts.  In addition,  stock markets have experienced extreme price volatility
in recent years.  This  volatility  has had a  substantial  effect on the market
prices of development  stage companies,  at times for reasons unrelated to their
operating  performance.  Such broad market fluctuations may adversely affect the
price of our Common Stock.

Anti-takeover Consideration; Rights of Preferred Stock

         Our  Certificate  of  Incorporation  authorizes  the  issuance of up to
6,000,000 shares of $.01 par value preferred stock (the "Preferred  Stock").  As
of the date of this Prospectus, only the Series C Preferred Stock are issued and
outstanding.  The  authorized  and unissued  Preferred  Stock may be issued with
voting,  conversion or other terms  determined  by the Board of Directors  which
could be used to delay,  discourage  or prevent a change of control.  Such terms
could include,  among other things,  dividend payment  requirements,  redemption
provisions,  preferences  as to dividends  and  distributions  and  preferential
voting rights.  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  discourage  or  prevent a change in our
management.  We have no  present  intention  to issue any  additional  Preferred
Stock. See "Description of Securities -- Preferred Stock."

                                     - 11 -

<PAGE>



         We have a classified  or staggered  Board of Directors  which limits an
outsider's  ability  to  effect a rapid  change  of  control  of the  Board.  In
addition, at the 1998 Annual Meeting of Stockholders held on September 24, 1998,
our shareholders approved measures to amend our Certificate of Incorporation and
Bylaws, 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  Chairmen of the Board,  the
              Secretary or the 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 the Board of Directors;

         o    provide  that a  member  of the  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 (the "Voting Stock");

         o    fix the size of the  Board of  Directors  at a  maximum  of twelve
              directors, with the authorized number of directors set at ten, and
              the 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  the  Board  of
              Directors;

         o    provide that any vacancy on the Board of  Directors  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.

         Such  measures,  combined with the ability of the Board of Directors to
issue "blank check" Preferred Stock and the staggered Board of Directors,  could
have the effect of delaying, deterring or preventing a change in control without
any further  action by the  shareholders.  In  addition,  issuance of  Preferred
Stock, without shareholder approval, on such 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.  See  "Description  of
Securities."


                                 USE OF PROCEEDS

         The Selling  Stockholder  is selling all of the Shares  covered by this
Prospectus  for its own account.  Accordingly,  we will not receive any proceeds
from the resale of the Shares. We will receive proceeds from the exercise of the
Warrants.  We will use such net proceeds for general corporate purposes. We will
bear  all  expenses  relating  to this  registration  except  for  brokerage  or
underwriting commissions and expenses, if any, which will be paid by the Selling
Stockholder.
                                     - 12 -

<PAGE>



                                 DIVIDEND POLICY

         We have never declared or paid cash  dividends on our Common Stock.  We
currently  anticipate  that we will  retain all  available  funds for use in the
operation  of our  business.  As  such,  we do not  anticipate  paying  any cash
dividends on our Common Stock in the foreseeable future.


                              SELLING STOCKHOLDERS

         We issued the shares of Common Stock covered by this  Prospectus to the
Selling Stockholder under the terms of a private placement.

         Under the terms of a Purchase  Agreement  dated  October  8,  1998,  we
issued 593,201 shares of our Common Stock to the Selling Stockholder. The number
of shares issued for each drawdown was based on the price per share equal to the
lesser of (1) the  average of the daily  volume  weighted  average  price of the
Common  Stock on NASDAQ  SmallCap  Market  for a certain  number of  consecutive
trading days preceding the funding date of the draw down and (2) $8.00.

         This Prospectus also covers the resale by the Selling Stockholder of up
to 37,500 shares of our Common Stock issuable upon exercise of Warrants which we
issued to the Selling  Stockholder at each draw down. The exercise price of such
Warrants is as follows:


Exercise Price             Number of Shares               Date of Warrant
- --------------             ----------------               ---------------
   $9.58                          12,500                         10/27
   $9.09                          12,500                         10/30
   $13.05                         12,500                         11/17
   
         The  following  table lists certain  information  regarding the Selling
Stockholder's  ownership  of Shares of our Common  Stock as of December 9, 1998,
and as adjusted to reflect the sale of the Shares.  Information  concerning  the
Selling  Stockholder  may change  from time to time.  To the extend the  Selling
Stockholder or any of its  representatives  advises us of such changes,  we will
report those  changes in a Prospectus  Supplement  to the extent  required.  See
"Plan of Distribution."

<TABLE>
<CAPTION>                   

                                                                       Shares of Common Stock Owned    
                                                                            after Offering (2)
                                                                   ----------------------------------
                               Shares of                                                             
                             Common Stock                                                            
                            Owned Prior to    Shares of Common                                       
                             Offering (1)     Stock to be Sold         Number             Percent
                            ---------------- -------------------   ----------------- ----------------
<S>                           <C>                <C>                <C>                   <C> 
HSBC James Capel Canada, Inc.   630,701            630,701            630,701              %2.95
                                -------            -------            -------              -----
   Total                        630,701            630,701            630,701              % 2.95
                                =======            =======            =======              ======
- -----------------
</TABLE>

(1)      Assumes that the Selling Stockholder will exercise all of its Warrants.

         In  September  1998,  we entered  into a financing  agreement  with the
Selling Stockholder on terms comparable to those of the October 8, 1998 Purchase
Agreement  for the sale of up to  $31,200,000  of Common  Stock  during a twelve
month period. That agreement has been terminated. We did not issue any shares of
Common  Stock to the Selling  Stockholder  under that  agreement.  Other than as
indicated in this paragraph, the Selling Stockholder is not affiliated with us.

                                     - 13 -

<PAGE>



                            DESCRIPTION OF SECURITIES


General

         Our authorized  capital stock  consists of 40,000,000  shares of Common
Stock,  par value $.01 per share,  and 6,000,000  shares of Preferred Stock, par
value $.01 per share.  As of the date  hereof,  there are  21,321,627  shares of
Common Stock and 188 shares of Series C Preferred Stock issued and  outstanding.
We have  reserved  7,185,452  shares of Common  Stock for  issuance  pursuant to
outstanding options and warrants. Common Stock

         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. Holders of Common Stock are entitled
to receive  ratably such  dividends as may be declared by the Board of Directors
out of funds  legally  available  therefor.  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.  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

         The Board of Directors has the authority,  without further  stockholder
approval,  to issue up to 6,000,000  shares of Preferred Stock from time to time
in one or more series,  to establish the number of shares to be included in each
such series, and to fix the designations,  powers, preferences and rights of the
shares of each such series and the  qualifications,  limitations or restrictions
thereof.  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,
such  issuances  could have the  effect of  decreasing  the market  price of the
Common Stock.

         Series C Preferred Stock

         On May 15, 1998,  the Board of Directors  authorized  the issuance of a
series of  Preferred  Stock  consisting  of 375 shares (the  "Series C Preferred
Stock"),  each such  share of  Series C  Preferred  Stock has a stated  value of
$1,000 (the "Liquidation Preference"),  pursuant to a Certificate of Designation
(the "Certificate of Designation").

         Dividends.  The holders of the shares of Series C  Preferred  Stock are
entitled to receive,  when and as declared by the Board of Directors,  dividends
at the rate of five percent of the stated  Liquidation  Preference per share per
annum,  and no more,  payable,  at the discretion of the Board of Directors,  in
Common Stock or cash. Dividends accrue on each share of Series C Preferred Stock
from the date of initial  issuance.  Such  dividends  are in  preference  to any
distributions on any outstanding  shares of our Common Stock or any other of our
equity  securities  that are junior to the Preferred  Stock as to the payment of
dividends.

         Conversion  Rights.  The holders of Series C Preferred Stock shall have
conversion  rights as follows:  (i) no shares of Series C Preferred Stock may be
converted  prior to August  15,  1998;  (ii) at any time after  August 15,  1998
through  November 14, 1998,  up to  twenty-five  (25%)  percent of the shares of
Series C Preferred Stock then outstanding may be converted, at the option of the
holders thereof;  and (iii) thereafter,  on November 15, 1998, February 15, 1999
and May 15,  1999,  an  additional  twenty-five  (25%)  percent of the shares of
Series C Preferred Stock then outstanding may be converted,  on a cumulative and
pro rata basis,  at the option of the holders  thereof.  The number of shares of
fully-paid  and  nonassessable  Common  Stock  into which each share of Series C
Preferred Stock may be converted shall be determined by dividing the Liquidation
Preference by an amount (the "Conversion Price") equal to the lesser of (A) 100%
of the average
                                     - 14 -

<PAGE>



closing bid price of the Common Stock as reported on the Nasdaq  SmallCap Market
or any  successor  exchange  in which the  Common  Stock is listed  for the five
trading  days  preceding  the date on which the holder of the Series C Preferred
Stock has  telecopied a notice of conversion to us (the  "Conversion  Date") and
(B) $4.00.

         On May 15,  2000,  the holders of the Series C Preferred  Stock will be
required to convert all of their outstanding  shares of Series C Preferred Stock
into  shares of Common  Stock.  Until  converted,  we will be entitled to redeem
shares  of  Series C  Preferred  Stock in  accordance  with the  Certificate  of
Designation,  regardless  of whether or not we  received a notice of  conversion
with respect to such shares.

         We will at all times  when any shares of Series C  Preferred  Stock are
outstanding,  reserve and keep  available  out of our  authorized  but  unissued
stock,  such  number of shares of Common  Stock as,  from time to time,  will be
sufficient  to  effect  the  conversion  of all  outstanding  shares of Series C
Preferred Stock.

         Redemption. At any time after May 15, 1998, we may redeem up to 100% of
the  outstanding  shares  of the  Series C  Preferred  Stock  at the  applicable
redemption  price,  provided,  that (x) we have received a notice of conversion,
and (y) the  Conversion  Price is below $3.40.  We will give  written  notice by
telecopy, to the holders of Series C Preferred Stock to be redeemed at least one
business  day  after  receipt  of the  notice  of  conversion  prior to the date
specified for redemption  (the  "Redemption  Date").  Such notice will state the
Redemption  Date, the Redemption Price (as hereinafter  defined),  the number of
shares of Series C Preferred Stock of such holders to be redeemed and shall call
upon  such  holders  to  surrender  to us on the  Redemption  Date at the  place
designated in the notice such holders' redeemed stock.

         We have the option to redeem  all or a portion  of all the  outstanding
shares of Series C Preferred  Sock at a cash price equal to $3.40  multiplied by
the number of shares the Series C Preferred Stock would convert into on the date
of redemption.

         Voting Rights.  Except as otherwise required by law, the holders of the
Series C Preferred Stock are not be entitled to vote upon any matter relating to
our business or affairs or for any other purpose.

         Status.  In case any  outstanding  shares of Series C  Preferred  Stock
shall be  redeemed,  the shares so  redeemed  shall be deemed to be  permanently
canceled and shall not resume the status of  authorized  but unissued  shares of
Series C Preferred Stock.

         Other Designations of Preferred Stock

         As of the date of this Prospectus, we have not designated any shares of
Preferred  Stock  other than the Series A  Preferred  Stock,  Series B Preferred
Stock and Series C Preferred Stock. There are no other shares of Preferred Stock
outstanding, and we have no plans to issue any other shares of Preferred Stock.

Anti-takeover Considerations.

         Our  Certificate  of  Incorporation  authorizes  the  issuance of up to
6,000,000  shares  of $.01 par  value  Preferred  Stock.  As of the date of this
Prospectus,  only the Series C Preferred Stock are issued and  outstanding.  See
"--  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 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 the  Board.  In
addition, at the 1998 Annual Meeting of Stockholders held on September 24, 1998,
our shareholders approved measures to amend our Certificate of Incorporation and
Bylaws, 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;

                                     - 15 -

<PAGE>



         o        permit only the President, the Vice Chairmen of the Board, the
                  Secretary or the 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 the Board of Directors;

         o        provide  that a member of the 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 the Board of  Directors at a maximum of twelve
                  directors, with the authorized number of directors set at ten,
                  and the 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 the  Board of
                  Directors;

         o        provide  that any  vacancy  on the Board of  Directors  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.

         Such  measures,  combined with the ability of the Board of Directors to
issue "blank check" Preferred Stock and the staggered Board of Directors,  could
have the effect of delaying, deterring or preventing a change in control without
any further action by the shareholders.  In addition,  the issuance of Preferred
Stock, without shareholder approval, on such 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.

Transfer Agent and Registrar

         Continental  Stock  Transfer & Trust Company is our Transfer  Agent and
Registrar for our Common Stock and the Redeemable Warrants.


                    DELAWARE BUSINESS COMBINATION PROVISIONS

         As a Delaware  corporation,  we are  subject to Section  203  ("Section
203") of the Delaware  General  Corporation  Law (the "DGCL"),  which  regulates
large  accumulations of shares,  including those made by tender offers.  Section
203 may have the  effect of  significantly  delaying  a  purchaser's  ability to
acquire our  organization  if such  acquisition  is not approved by the Board of
Directors.

         In general,  Section 203 prevents an "Interested  Stockholder" (defined
generally  as a person with 15% or more of a  corporation's  outstanding  voting
stock) from engaging in a "Business Combination" (defined below) with a Delaware
corporation  for three years following the date such person became an Interested
Stockholder.  For purposes of Section 203, the term  "Business  Combination"  is
defined broadly to include mergers and certain other transactions with or caused
by the Interested  Stockholder,  sales or other  dispositions  to the Interested
Stockholder (except  proportionately  with the corporation's other stockholders)
of  assets  of the  corporation  or a  subsidiary  equal  to 10% or  more of the
aggregate  market  value  of  the  corporation's   consolidated  assets  or  our
outstanding  stock;  the issuance or transfer by the corporation or a subsidiary
of stock of the  corporation or such  subsidiary to the  Interested  Stockholder
(except for transfers in

                                     - 16 -

<PAGE>



a  conversion  or  exchange  or  a  pro-rata   distribution   or  certain  other
transactions,  none of which increase the Interested Stockholder's proportionate
ownership  of any  class or  series of the  corporation's  or such  subsidiary's
stock); or receipt by the Interested  Stockholder  (except  proportionately as a
stockholder),  directly  or  indirectly,  of any  loans,  advances,  guarantees,
pledges or other financial  benefits provided by or through the corporation or a
subsidiary.

         The three-year  moratorium imposed on Business  Combinations by Section
203 does not apply if:

         (a)  prior to the date on which a  stockholder  becomes  an  Interested
              Stockholder,  the Board of Directors  approves either the Business
              Combination  or  the  transaction  that  resulted  in  the  person
              becoming an Interested Stockholder,

         (b)  the Interested  Stockholder owns 85% of the  corporation's  voting
              stock upon consummation of the transaction that made him or her an
              Interested  Stockholder (excluding from the 85% calculation shares
              owned by directors  who are also officers of the  corporation  and
              shares held by employee stock plans which do not permit  employees
              to decide  confidentially  whether to accept a tender or  exchange
              offer); or

         (c)  on or after the date a person  becomes an Interested  Stockholder,
              the Board of Directors approves the Business  Combination,  and it
              is also  approved at a  stockholder  meeting by  two-thirds of the
              voting stock not owned by the Interested Stockholder.

         Under Section 203, the  restrictions  described  above do not apply if,
among other things,  the  corporation's  original  certificate of  incorporation
contains a provision electing not to be governed by Section 203. Our Certificate
of Incorporation does not contain such a provision.  The restrictions  described
above  also  do not  apply  to  certain  Business  Combinations  proposed  by an
Interested  Stockholder  following the  announcement  or  notification of one of
certain  extraordinary  transactions  involving the corporation and a person who
had not been an Interested  Stockholder  during the previous  three years or who
became  an  Interested  Stockholder  with  the  approval  of a  majority  of the
corporation's directors.

                                     - 17 -

<PAGE>



                              PLAN OF DISTRIBUTION

         The  Selling  Stockholder  may offer its shares of our Common  Stock 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 such sale;
         o     in the over-the-counter market;
         o     in  transactions  other  than  on  such   exchanges   or  in  the
               over-the-counter  market;  
         o     in  connection  with short  sales;  
         o     in a combination of any of the above transactions.

         The  Selling  Stockholder  may may offer its shares of Common  Stock at
prevailing  market  prices  at the  time of  sale,  at  prices  related  to such
prevailing market prices, at negotiated prices or at fixed prices.

         The Selling  Stockholder may use  broker-dealers  to sell its shares of
Common Stock. If this happens,  broker-dealers  will either receive discounts or
commission from the Selling  Stockholder,  or they will receive commissions from
purchasers of shares of Common Stock for whom they acted as agents. Such brokers
may act as  dealers  by  purchasing  any and all of the  Shares  covered by this
Prospectus  either as agents for others or as principals  for their own accounts
and reselling such securities pursuant to this Prospectus.

         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.  As such, 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 the  Selling
Stockholder  with  respect to the offer or sale of the Shares  pursuant  to this
Prospectus.

         To the  extent  required  under  the  Securities  Act,  we will  file a
supplemental prospectus to disclose (a) the name of any such broker-dealers, (b)
the  number of Shares  involved,  (c) the price at which  such  Shares are to be
sold,  (d) the  commissions  paid or  discounts or  concessions  allowed to such
broker-dealers,  where applicable,  (e) that such broker-dealers did not conduct
any  investigation  to verify the  information  set out in this  Prospectus,  as
supplemented, and (f) other facts material to the transaction.

         The Selling  Stockholder  is selling all of the Shares  covered by this
Prospectus  for its own account.  Accordingly,  we will not receive any proceeds
from the resale of the Shares. We will receive proceeds from the exercise of the
Warrants. We will use such net proceeds for general corporate purposes.

         The Purchase  Agreements  have  reciprocal  indemnification  provisions
against certain  liabilities,  including  liabilities  under the Securities Act,
which may be based upon,  among other  things,  any untrue  statement or alleged
untrue  statement of a material  fact or any  omission or alleged  omission of a
material  fact.  We have  agreed  to bear  customary  expenses  incident  to the
registration  of the  Shares  for the  benefit  of the  Selling  Stockholder  in
accordance  with  such  agreements,   other  than  underwriting   discounts  and
commissions directly attributable to the sale of such securities by or on behalf
of the Investor.
                                     - 18 -

<PAGE>



                 INDEMNIFICATION FOR SECURITIES ACT LIABILITIES

         Section  145 of the  DGCL  provides,  in  general,  that a  corporation
incorporated under the laws of the State of Delaware,  such as our company,  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  shall be made in respect  of any  claim,  issue or matter as to
which such  person  shall  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 shall 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 our  stockholders,  intentional  misconduct or
wilful  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 (the "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 a directors  and  officers  liability  policy with  Genesis
Insurance  Company that contains a limit of liability of  $3,000,000  per policy
year.

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


                                     - 19 -

<PAGE>



                                  LEGAL MATTERS

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


                                     EXPERTS


         The consolidated  financial statements as of December 31, 1997 and 1996
and for each of the two years in the period ended December 31, 1997 incorporated
by reference in this  Prospectus  have been so  incorporated  in reliance on the
report  (which  contains an  explanatory  paragraph  relating  to the  Company's
ability  to  continue  as a  going  concern  as  described  in  Note  1  to  the
consolidated  financial statements) of  PricewaterhouseCoopers  LLP, independent
accountants,  given on the  authority  of said firm as experts in  auditing  and
accounting.

                                     - 20 -

<PAGE>
- ----------------------------------------    ------------------------------------

   We have not  authorized  any  dealer,        ______ SHARES OF COMMON STOCK   
salesperson  or any other person to give                                        
any information or to represent anything                                        
not  contained in this  Prospectus.  You                                        
must  not   rely  on  any   unauthorized                                        
information.  This  Prospectus  does not                                        
offer to sell or buy any  shares  in any                                        
jurisdiction  where it is unlawful.  The                                        
information   in  this   Prospectus   is                                        
current as of _____________, 1998.  
                                                  
                                                                                
             --------------                                                     
                                                                                
           TABLE OF CONTENTS                                                    
                                   Page                                         
                                   ----                                         
                                                                                
Where You Can Find More                                                       
         Information About Us.........2                     
Prospectus Summary....................4                                         
Risk Factors..........................5                     
Use of Proceeds......................13                     
Dividend Policy......................13                     
Selling Stockholders ................14                 -------------           
Description of Securities............15                  PROSPECTUS             
Delaware Business Combination                           -------------           
         Provisions..................17                                         
Plan of Distribution ................19                                         
Indemnification for Securities                                                  
         Act Liabilities.............21                                   
Legal Matters........................22                                
Experts .............................22                        , 1998     
                                                                       
- ---------------------------------------   --------------------------------------
<PAGE>                                       



                                     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  the  Company  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.........  $   980.95
                  Legal fees and expenses.......................  $15,000.00
                  Accounting expenses...........................  $ 7,000.00
                                                                 -----------
                       Total....................................  $22,980.95
                                                                 ===========

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  shall be made in
respect of any claim,  issue or matter as to which such  person  shall 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.

         The Company's  Certificate  of  Incorporation  provides that  directors
shall not be  personally  liable  for  monetary  damages  to the  Company or its
stockholders  for breach of fiduciary  duty as a director,  except for liability
resulting from a breach of the director's  duty of loyalty to the Company or its
stockholders,  intentional  misconduct  or wilful  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.  The Company's
Certificate  of  Incorporation  also  authorizes  the Company to  indemnify  its
officers, directors and other agents, by bylaws, agreements or otherwise, to the
fullest  extent  permitted  under  Delaware law. The Company has entered into an
Indemnification  Agreement (the  "Indemnification  Agreement")  with each of its
directors  and officers  which may, in some cases,  be broader than the specific
indemnification   provisions   contained  in  the   Company's   Certificate   of
Incorporation or as otherwise permitted under Delaware law. Each Indemnification
Agreement  may require  the  Company,  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.

         The Company  maintains a directors and officers  liability  policy with
Genesis  Insurance  Company that contains a limit of liability of $3,000,000 per
policy year.

ITEM 16.  EXHIBITS.

                                     II - 1

<PAGE>



NUMBER        DESCRIPTION OF EXHIBIT

4.1           Purchase Agreement dated October 8, 1998 between Xybernaut
              Corporation and HSBC James Capel Canada, Inc.
4.2           Form of Warrant.
23.1          Consent of PricewaterhouseCoopers LLP
23.2          Consent of Parker Chapin Flattau & Klimpl, LLP (included in their
              opinion filed as Exhibit 5.1).
24.1          Power of Attorney (included on page II-4).

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


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) 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 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 shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such  securities at that time shall 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 (the "Act") may be permitted to directors,  officers and controlling
persons of the small business  issuer pursuant to the foregoing  provisions,  or
otherwise, the small business issuer has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy
as expressed in the Act and is, therefore, unenforceable.

         In the event that a claim for indemnification  against such liabilities
(other than the  payment by the small  business  issuer of expenses  incurred or
paid by a director,  officer or controlling  person of the small business issuer
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 small business issuer will, unless

                                     II - 2

<PAGE>



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  small  business  issuer 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  shall  be  deemed  to be a new  registration  statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

                                     II - 3

<PAGE>



                                   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 December  14,
1998.


                                          XYBERNAUT CORPORATION


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


                                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 (including post-effective
amendments)  to this  registration  statement 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 his 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 and on the date indicated.
<TABLE>
<CAPTION>


                SIGNATURE                          TITLE                               DATE
                ---------                          -----                               ----
<S>                                       <C>                                 <C>                           
                                             Chairman of the Board,             December 14, 1998    
/s/ Edward G. Newman                         President and Chief Executive 
- ------------------------------------------   Officer                              
Edward G. Newman                            


                                             Executive Vice President -         December 14, 1998
- ------------------------------------------   Asian Operations and Director
Kaz Toyosato                                 

/s/ Maarten R. Heybroek                      Chief Operating Officer and        December 14, 1998
- ------------------------------------------   Chief Financial Officer
Maarten R. Heybroek                          


/s/ Martin Eric Weisberg                     Secretary and Director             December 14, 1998
- ------------------------------------------   
Martin Eric Weisberg                                                       


                                     II - 4

<PAGE>



                SIGNATURE                          TITLE                           DATE
                ---------                          -----                           ----


- -----------------------------------------    Director                           December 14, 1998
Lt. Gen. Harry E. Soyster                   

/s/ James J. Ralabate                        Director                           December 14, 1998
- -----------------------------------------   
James J. Ralabate

/s/ Keith P. Hicks                           Director                           December 14, 1998
- -----------------------------------------    
Keith P. Hicks

/s/ Steven A. Newman                         Director                           December 14, 1998
- ------------------------------------------
Steven A. Newman

/s/ Phillip E. Pearce                        Director                           December 14, 1998
- ------------------------------------------
Phillip E. Pearce


- ------------------------------------------   Director                           December 14, 1998
Eugene J. Amobi


By:    /s/ Edward G. Newman
- -------------------------------------------
       Edward G. Newman
       Attorney-in-fact

</TABLE>

<PAGE>



                                 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)



                                December 14, 1998
<PAGE>



                                  EXHIBIT INDEX
                                  -------------


EXHIBIT NO.  DESCRIPTION OF DOCUMENT                              PAGE NO./REF.
- ----------   -----------------------                              -------------

4.1          Purchase Agreement dated October 8, 1998 between                
             Xybernaut Corporation and HSBC James Capel                      
             Canada, Inc.                                                    
4.2          Form of Warrant.
5.1          Opinion of Parker Chapin Flattau & Klimpl, LLP.
23.1         Consent of PricewaterhouseCoopers LLP
23.2         Consent of Parker Chapin Flattau & Klimpl,  LLP (included
             in their opinion filed as Exhibit 5.1).
24.1         Power of Attorney (see page II-4 to the Registration
             Statement).

                                                                     Exhibit 4.1


                               PURCHASE AGREEMENT

       THIS  PURCHASE  AGREEMENT  is made and entered into as of this 8th day of
October,  1998  (the  "Agreement"),  by and  between  Xybernaut  Corporation,  a
Delaware  corporation  ("Xybernaut"),  with offices at 12701 Fair Lakes  Circle,
Fairfax,  Virginia 22033, and HSBC James Capel Canada,  Inc., an Ontario company
("HSBC"), with offices at 105 Adelaide Street West, Suite 1200, Toronto, Ontario
M5H 1P9,  Canada,  providing  for the  purchase and sale of shares of the common
stock, par value $.01 per share (the "Common Stock"),  of Xybernaut,  by HSBC or
its designated affiliates  (collectively with HSBC, the "Buyer"), in the manner,
and upon the terms, provisions and conditions set forth in this Agreement.

       Therefore,  in  consideration  of  the  representations,  warranties  and
agreements  contained  herein and other  good and  valuable  consideration,  the
receipt  and legal  adequacy  of which is hereby  acknowledged  by the  parties,
Xybernaut and Buyer hereby agree as follows:

       1.         Definitions.

                  (a) "Average Daily Price" shall be the price based on the VWAP
of Xybernaut on the relevant market or exchange.

                  (b) "Average  Price" shall be the average of the Average Daily
Price for the  applicable  Draw Down Pricing  Period on the  relevant  market or
exchange.

                  (c) "Draw Down"  shall have the meaning  assigned to such term
in Section 4(a) hereof.

                  (d) "Draw Down Exercise Date" shall have the meaning  assigned
to such term in Section 4(b) hereof.

                  (e) "Draw Down Pricing Period" shall mean a period of five (5)
consecutive trading days preceding a Draw Down Exercise Date.

                  (f)  "Effective  Date"  shall  mean the date the  Registration
Statement  of the Company  covering the Shares  being  subscribed  for hereby is
declared effective.

                  (g)  "Material  Adverse  Effect"  shall mean any effect on the
business,  operations,  properties or financial  condition of Xybernaut  that is
material and adverse to Xybernaut and its subsidiaries and affiliates,  taken as
a whole, and/or any condition, circumstance, or situation that would prohibit or
otherwise  interfere with the ability of Xybernaut to enter into and perform any
of its obligations under this Agreement or the Warrant, in any material respect.

                  (h)  "Material  Change  in  Ownership"  shall  mean  that  the
officers and directors of Xybernaut  shall own less than 20% of the  outstanding
Common Stock of Xybernaut.

                  (i)  "Registration  Statement"  shall  mean  the  registration
statement  under the  Securities  Act of 1933, as amended,  to be filed with the
Securities and Exchange Commission for the registration of the Shares.

                  (j)  "Securities"  shall  mean,  collectively,  the  shares of
Common Stock of Xybernaut being  subscribed for hereunder,  the shares of Common
Stock issuable to Buyer upon exercise of the Option and the Warrants, the Option
(as hereinafter defined)and the Warrants.

                  (k) "Shares"  shall mean,  collectively,  the shares of Common
Stock of Xybernaut  being  subscribed  for  hereunder and those shares of Common
Stock issuable to Buyer upon exercise of the Option and the Warrants.

<PAGE>


                  (l) "Threshold  Price" is the lowest price that Xybernaut will
issue new shares of Common
                            
Stock.

                  (m) "VWAP" shall mean the daily volume weighted  average price
of Xybernaut on the relevant  exchange as reported by Bloomberg  Financial using
the AQR function.

                  (n) "Warrants" shall have the meaning assigned to such term in
Section 7 hereof.

       2.         Agreement to Subscribe; Pricing.

                  (a) Buyer hereby  subscribes  for a total of up to Two Million
Seven Hundred  Thousand Dollars  ($2,700,000) of Xybernaut's  Common Stock based
upon (i) the Draw  Downs  permitted  hereunder;  provided  that no Draw Down may
exceed Seven Hundred Fifty  Thousand  Dollars  ($750,000),  and (ii) a per share
purchase price equal to the lesser of (x) 100% of the Average Price for the Draw
Down Pricing Period and (y) $8.00 (the "Purchase Price").

                  (b) If the Average  Daily Price on a given trading day is less
than the Threshold  Price then Buyer's payment  obligation  under the applicable
Draw Down will be reduced by 1/5th.  At no time shall the Threshold Price be set
below $3.00;  provided,  however, that if trading in Xybernaut's Common Stock is
suspended  for more than three (3) hours in any  trading  day,  the price of the
Common  Stock shall be deemed to be below the  Threshold  Price for that trading
day.

       3. Condition Precedent.  The parties recognize that before Buyer shall be
obligated  to accept a Draw Down request from  Xybernaut,  Xybernaut  shall have
caused a sufficient  number of shares of Common Stock to be  authorized to cover
the shares of Common Stock to be issued in connection with such Draw Down.

       4. Draw Down Terms.  Subject to the  satisfaction  of the  conditions set
forth in Section 3 hereof, the parties agree as follows:

                  (a)  During the  Exercise  Period  (as  hereinafter  defined),
Xybernaut,  may, in its sole  discretion,  issue and exercise Draw Downs,  which
Draw Downs the Buyer will be obligated to accept.  The initial Draw Down may not
be initiated  before  Thursday,  October 8, 1998.  The next Draw Down shall only
occur after the end of the Draw Down  Pricing  Period for the initial  Draw Down
and successive  Draw Downs may only occur after the end of the Draw Down Pricing
Period for the immediately preceding Draw Down.

                  (b) Only one Draw  Down  shall be  allowed  in each  Draw Down
Pricing Period. The Settlement (as such is hereinafter defined) of the Draw Down
shall occur on the first  trading day following the end of the Draw Down Pricing
Period (the "Draw Down Exercise Date"),  based on the Average Daily Price during
the Draw Down Pricing Period.

                  (c) Subject to all restrictions being satisfied,  the exercise
of each  Draw  Down  will be  automatic  without  any  additional  action  being
required.  The  exercise of each Draw Down will be  "European  Style" ( i.e. the
Draw Down can be exercised only on the Draw Down Exercise Date).

                  (d) Each Draw Down will expire on the calendar day immediately
following the Draw Down Exercise Date.

                  (e) Xybernaut must inform Buyer via facsimile  transmission as
to the amount of the Draw Down  Xybernaut  wishes to exercise  before trading in
the Common Stock the first day of the Draw Down  Pricing  Period (the "Draw Down
Notice").  The closing bid price of the Common Stock on each Draw Down  Exercise
Date must be greater than $3.00 per share as reported by the relevant  market or
exchange.  At no time shall Buyer be required to purchase  more shares of Common
Stock than amount set forth in the Draw Down Notice.  For purposes  hereof,  the
term "Draw Down" shall mean Xybernaut's exercise of the right to commence a Draw
Down Pricing Period with respect to Buyer's  commitment to purchase Common Stock
pursuant to Section 2(a) hereof.  
<PAGE>

                  (f) On or before  three (3)  trading  days after the Draw Down
Exercise Date, Xybernaut shall deliver the Shares purchased by Buyer to Buyer or
to The Depositary  Trust Company ("DTC") on Buyer's behalf.  Xybernaut and Buyer
shall cause such Shares to be  credited to the DTC account  designated  by Buyer
upon  receipt  by  Xybernaut  of  payment  for the  Draw  Down  into an  account
designated by Xybernaut. The delivery of the shares of Common Stock into Buyer's
DTC account in  exchange  for  payment  therefor  shall be referred to herein as
"Settlement". Buyer shall coordinate with Xybernaut each Settlement through DTC.

       5.  Buyer's  Call  Option.  Buyer  shall  have the right to  purchase  an
additional  shares of Common  Stock in an amount equal to the amount of the Draw
Down as set forth in the Draw Down Notice (the  "Option").  For each  additional
amount that Buyer  exercises  the Option  pursuant to this Section 5, Buyer must
notify  Xybernaut in writing of such  exercise,  which exercise may be made on a
daily basis throughout the applicable Draw Down Pricing Period; provided that no
exercise  may be made later than 5:00 p.m.  (East coast time) on the last day of
the  applicable  Draw Down Pricing  Period.  If Buyer so exercises its Option to
purchase  additional  shares,  the price for the shares of Common Stock shall be
the VWAP for the  Common  Stock for each day  during  the  applicable  Draw Down
Pricing Period that all or a portion of the Option was exercised.  If Buyer does
not  exercise  its right to exercise  the Option by such time on the last day of
the applicable  Draw Down Pricing  Period,  Buyer's right to exercise the Option
with respect to the applicable Draw Down Pricing Period shall terminate.

       6. Restrictions. The parties further agree as follows:

                  (a) Xybernaut  must remain listed or admitted for trading,  as
applicable,  on the NASDAQ  Small Cap Market  Systems,  NASDAQ  National  Market
Systems,  the New York Stock  Exchange or the  American  Stock  Exchange for the
entire Draw Down Pricing Period.

                  (b) Should there occur a Material  Adverse  Effect or Material
Change in  Ownership of Xybernaut  during any Draw Down  Pricing  Period,  Buyer
shall  not  be  required  to  accept  the  Draw  Down,  unless  Buyer  otherwise
determines, in sole and absolute discretion.

                  (c) All cash payable to  Xybernaut  upon the  Settlement  of a
Draw  Down or the  exercise  of an Option  shall be paid by Buyer to a  mutually
agreed upon escrow account  against the concurrent  delivery to the escrow agent
of the escrow  amount of the shares of Common Stock  subject to the Draw Down or
the exercise of the Option, as applicable.

                  (d) At all times during the term of this Agreement  there must
be a minimum of eight (8) active Market Makers for  Xybernaut's  Common Stock on
the NASDAQ Small Cap Market or NASDAQ National  Market  Systems,  as applicable,
unless  Xybernaut's Common Stock is listed on the New York Stock Exchange or the
American Stock Exchange.

                  (e) The  Settlement  of all Draw Downs shall take place on the
Draw Down Exercise Date.

       7.  Registration  Statement.  Promptly after the day of the Settlement of
the  second  Draw Down  hereunder,  Xybernaut  shall  cause to be filed with the
Securities and Exchange  Commission (the "Commission") a Registration  Statement
on Form S-3 (or any other  comparable form) to register for resale the shares of
Common Stock purchased by Buyer pursuant to this Agreement.  Xybernaut shall use
its best efforts to take all steps necessary to cause the Registration Statement
to be declared  effective  by the  Commission  as  reasonably  expeditiously  as
possible.

       8. Warrants; Fees, etc. The parties agree as follows:

                  (a)  For  each  Draw  Down,   Buyer  will   receive   warrants
("Warrants") to purchase 12,500 shares of Common Stock. Each Warrant will have a
three (3) year term from its date of issuance.  The Common Stock  underlying the
Warrants will be registered in the Registration Statement referred to in Section
7 hereof.

                  (b) The  Warrant  Strike  Price  shall be 225% of the  Average
Daily Price of the Common Stock on the date Xybernaut  furnishes  Buyer with the
applicable Draw Down Notice to which the Warrants relate.
<PAGE>

                  (c) Settondown Capital International, Ltd. ("Settondown") will
receive a fee of six  percent  (6%) of the total  amount  paid for the shares of
Common Stock by Buyer in accordance with this Agreement.  Xybernaut acknowledges
that  Settondown  may use a  portion  of its  fee to  compensate  other  parties
relative to a particular Draw Down.

                  (d)  Notwithstanding  the foregoing,  should the  Registration
Statement not be filed with the Commission within thirty (30) days following the
day of the Settlement of the second Draw Down hereunder,  the fee due Settondown
shall be increased by one percent (1%) to seven percent (7%);  and therefore the
fee shall be increased  by an  additional  one percent (1%) for each  additional
thirty (30) days that the Registration Statement is not filed, if applicable.

                  (e) Xybernaut will be responsible for the payment of all costs
and  expenses  incurred  by  Buyer  or  Xybernaut  related  to the  transactions
contemplated by this Agreement.

       9.  Representations,  Warranties and Covenants of Buyer. Buyer represents
and  warrants to  Xybernaut,  and  covenants  for the benefit of  Xybernaut,  as
follows:

                  (a) This Agreement has been duly authorized,  validly executed
and  delivered  by Buyer and  constitutes  a valid  and  binding  agreement  and
obligation of Buyer  enforceable  against  Buyer in  accordance  with its terms,
subject  to  limitations  on  enforcement  by general  principles  of equity and
bankruptcy  or  other  laws  affecting  the  enforcement  of  creditors'  rights
generally;

                  (b) Buyer has received and  carefully  reviewed  copies of the
Public Documents (as hereinafter defined). No representations or warranties have
been made to Buyer by Xybernaut,  the officers or directors or Xybernaut, or any
agent,  employee or affiliate of any of them,  except as specifically  set forth
herein or as set forth in the other  documents  expressly  referred  to  herein.
Buyer understands that no federal,  state, local or foreign governmental body or
regulatory  authority  has made any  finding or  determination  relating  to the
fairness of an investment in the Securities and that no federal, state, local or
foreign  governmental body or regulatory  authority has recommended or endorsed,
or will recommend or endorse, any investment in the Securities. Buyer, in making
the  decision  to  purchase  the   Securities,   has  relied  upon   independent
investigation   made  by  it  and  has  not   relied  on  any   information   or
representations made by third parties;

                  (c) Buyer  understands  that the  Securities are being offered
and  sold  to it in  reliance  on  specific  provisions  of  federal  and  state
securities laws and that Xybernaut is relying upon the truth and accuracy of the
representations,  warranties, agreements,  acknowledgments and understandings of
Buyer  set  forth  herein  for  purposes  of  qualifying  for  exemptions   from
registration under the Securities Act, and applicable state securities laws;

                  (d) Buyer is an  "accredited  investor" as defined  under Rule
501 of Regulation D promulgated under the Securities Act;

                  (e) The Buyer (i) is and will be acquiring the  Securities for
the Buyer's own account,  and not with a view to any resale or  distribution  of
the  Securities,  in whole or in part, in violation of the Securities Act or any
applicable  securities  laws  and  (ii)  has  not  offered  or  sold  any of the
Securities  and has no present  intention or agreement to divide the  Securities
with  others for  purposes  of  selling,  offering,  distributing  or  otherwise
disposing of any of the Securities Act;

                  (f) The offer and sale of the  Securities  is  intended  to be
exempt from registration under the Securities Act, by virtue of Section 4(2) and
Regulation D promulgated  under the Securities Act. Buyer  understands  that the
shares of Common Stock  purchased  hereunder  (the  "Shares")  and the shares of
Common Stock underlying the Warrants have not been, and may never be, registered
under the Securities Act; that the Shares cannot be sold, transferred, assigned,
pledged or  subjected  to any lien or  security  interest  unless they are first
registered  under the Securities Act and such state and other securities laws as
may be applicable  or in the opinion of counsel for Xybernaut an exemption  from
registration  under the  Securities Act is available (and then the Shares may be
sold, transferred, assigned, pledged or subjected to a lien or security interest
only in  compliance  with  such  exemption  and all  applicable  state and other
securities  laws);  and that  the  following  legends  will be  placed  upon the
certificate for the Shares:

                  "The  Shares  represented  by this  certificate  have not been
                  registered  under the  Securities Act of 1933, as amended (the
                  "Securities Act"), and may not be
<PAGE>



                  offered for sale,  sold or otherwise  transferred,  pledged or
                  subjected to any lien or security interest,  in the absence of
                  an effective  registration  statement under the Securities Act
                  or a written  opinion  of  counsel  for the  Company  that the
                  Shares may be offered for sale, sold, transferred,  pledged or
                  subjected  to a  lien  or  security  interest  pursuant  to an
                  exemption  under the  Securities  Act and such state and other
                  securities laws as may be applicable."

                  (g) Buyer (i) has such  knowledge and  experience in financial
and business  matters as to be capable of evaluating  the merits and risks of an
investment  in Xybernaut;  and (ii)  recognizes  that the Buyer's  investment in
Xybernaut involves a high degree of risk; and

                  (h) Buyer is capable of evaluating  the risks and merits of an
investment in the  Securities by virtue of its experience as an investor and its
knowledge,  experience, and sophistication in financial and business matters and
Buyer is capable of bearing the entire loss of its investment in the Securities.

       10.  Representations,  Warranties  and Covenants of Xybernaut.  Xybernaut
represents  and warrants to Buyer,  and covenants  for the benefit of Buyer,  as
follows:

                  (a)  Xybernaut  has  been  duly  incorporated  and is  validly
existing and in good standing under the laws of the State of Delaware, with full
corporate  power and authority to own,  lease and operate its  properties and to
conduct  its  business  as  currently  conducted,  and is  duly  registered  and
qualified to conduct its business and is in good  standing in each  jurisdiction
or place  where the nature of its  properties  or the  conduct  of its  business
requires  such  registration  or  qualification,  except  where the  failure  to
register or qualify is not  reasonably  anticipated  to have a Material  Adverse
Effect;

                  (b) Xybernaut has furnished  Buyer with copies of  Xybernaut's
most recent  Annual  Report on Form 10-KSB  (the "Form  10-KSB")  filed with the
Commission,  its Form 10- QSB for the quarterly  period ended June 30, 1998 (the
"Form  10-QSB";  collectively  with the Form  10-KSB  and the Form  10-QSB,  the
"Public  Documents").  The Public  Documents at the time of their filing did not
include any untrue  statement  of a material  fact or omit to state any material
fact necessary in order to make the statements  contained  therein,  in light of
the circumstances under which they were made, not misleading;

                  (c)  The  Shares,  when  paid  for by  Buyer,  shall  be  duly
authorized and validly issued and when issued and delivered,  will be fully paid
and nonassessable;

                  (d) This Agreement has been duly authorized,  validly executed
and  delivered on behalf of Xybernaut  and is a valid and binding  agreement and
obligation of Xybernaut  enforceable  against  Xybernaut in accordance  with its
terms, subject to limitations on enforcement by general principles of equity and
by  bankruptcy  or other laws  affecting the  enforcement  of creditors'  rights
generally,  and  Xybernaut  has full power and  authority to execute and deliver
this Agreement and the other agreements and documents contemplated hereby and to
perform its obligations hereunder and thereunder;

                  (e) The execution and delivery of this Agreement, the issuance
of the Shares and the  consummation  of the  transactions  contemplated  by this
Agreement by  Xybernaut,  will not  conflict  with or result in a breach of or a
default  under any of the terms or provisions  of,  Xybernaut's  certificate  of
incorporation  or  Bylaws,  or of  any  material  provision  of  any  indenture,
mortgage,  deed of trust or other  material  agreement  or  instrument  to which
Xybernaut is a party or by which it or any of its material  properties or assets
is bound, any material provision of any law, statute, rule,  regulation,  or any
existing  applicable  decree,  judgment or order by any court,  federal or state
regulatory  body,  administrative  agency,  or other  governmental  body  having
jurisdiction over Xybernaut, or any of its material properties or assets or will
result in the creation or imposition of any material lien, charge or encumbrance
upon any material  property or assets of  Xybernaut  or any of its  subsidiaries
pursuant to the terms of any  agreement or  instrument to which any of them is a
party or by which any of them may be bound or to which any of their  property or
any of them is subject;

                  (f)   Except  as   disclosed   herein,   and  based  upon  the
representations  and  warranties  of Buyer set forth herein,  no  authorization,
approval,  filing with or consent of any  governmental  body is required for the
issuance and sale of the Shares to Buyer pursuant to this Agreement;

<PAGE>

                  (g) There is no action,  suit or  proceeding  before or by any
court or governmental agency or body,  domestic or foreign,  now pending against
or affecting  Xybernaut,  or any of its  properties,  which would  reasonably be
anticipated to result in a Material  Adverse Effect,  except as set forth in the
Public Documents;

                  (h)  Subsequent to the dates as of which  information is given
in the Public  Documents,  except as contemplated  herein and in connection with
the Other  Financing,  Xybernaut  has not incurred any material  liabilities  or
material  obligations,  direct  or  contingent,  or  entered  into any  material
transactions not in the ordinary course of business,  and there has not been any
change in its capitalization or any Material Adverse Effect; and

                  (i)  Xybernaut  has  sufficient  title  and  ownership  of all
trademarks,  service marks, trade names, copyrights,  patents, trade secrets and
other  proprietary  rights  necessary  for its business as now  conducted and as
proposed  to be  conducted  as  described  in the Public  Documents  without any
conflict with or  infringement  of the rights of others.  Except as set forth in
the Public Documents,  there are no material  outstanding  options,  licenses or
agreements of any kind relating to the foregoing,  nor is Xybernaut  bound by or
party to any material  options,  licenses or agreements of any kind with respect
to the  trademarks,  service  marks,  trade names,  copyrights,  patents,  trade
secrets, licenses and other proprietary rights of any other person or entity.

       11.        Indemnification.

                  (a)  Xybernaut  hereby  agrees to indemnify  and hold harmless
Buyer and its officers, directors, shareholders, employees, agents and attorneys
against any and all losses, claims,  damages,  liabilities and expenses incurred
by each such person in  connection  with  defending  or  investigating  any such
claims or liabilities, whether or not resulting in any liability to such person,
to which any such indemnified party may become subject under the Securities Act,
or under any other statute, at common law or otherwise,  insofar as such losses,
claims, demands, liabilities and expenses arise out of or are based upon (i) any
untrue  statement  or  alleged  untrue  statement  of a  material  fact  made by
Xybernaut (ii) any omission or alleged  omission of a material fact with respect
to  Xybernaut or (iii) any breach of any  representation,  warranty or agreement
made by Xybernaut in this Agreement.

                  (b)  Buyer  hereby  agrees  to  indemnify  and  hold  harmless
Xybernaut  and its  officers,  directors,  shareholders,  employees,  agents and
attorneys against any and all losses, claims, damages,  liabilities and expenses
incurred by each such person in connection with defending or  investigating  any
such claims or  liabilities,  whether or not  resulting in any liability to such
person,  to which  any such  indemnified  party  may  become  subject  under the
Securities Act, or under any other statute, at common law or otherwise,  insofar
as such losses,  claims,  demands,  liabilities and expenses arise out of or are
based upon (i) any untrue  statement or alleged  untrue  statement of a material
fact made by Buyer,  (ii) any  omission or alleged  omission of a material  fact
with  respect to Buyer or (iii) any breach of any  representation,  warranty  or
agreement made by Buyer in this Agreement.

       12.  Effective  Period.  Xybernaut  may  not  issue  a Draw  Down  Notice
hereunder after November 15, 1998 (the "Exercise Period").

       13. Governing Law. This Agreement shall be governed by and interpreted in
accordance  with the laws of the State of Delaware  without giving effect to the
rules governing the conflicts of laws.

       14. Expenses. Each of the parties agrees to pay its own expenses incident
to this Agreement and the performance of its obligations hereunder,  except that
Xybernaut will pay the reasonable fees and expenses of Buyer's legal counsel.

       15.  Notices.  All  notices  and  other  communications  provided  for or
permitted hereunder shall be made in writing by hand delivery, express overnight
courier,   registered  first  class  mail,  overnight  courier,  or  telecopier,
initially to the address set forth below,  and thereafter at such other address,
notice of which is given in accordance with the provisions of this Section. 

<PAGE>



                  if to Xybernaut:

                  Xybernaut Corporation
                  12701 Fair Lakes Circle
                  Fairfax, Virginia 22033
                  Attn:    Mr. Edward G. Newman
                           President and Chief Executive Officer
                  Telephone:     (703) 631-6925
                  Telecopier:    (703) 631-6734

                  with a copy to:

                  Parker Chapin Flattau & Klimpl, LLP
                  1211 Avenue of the Americas
                  New York, New York 10036
                  Attn:    Martin Eric Weisberg, Esq.
                  Telephone:     (212) 704-6000
                  Telecopier:    (212) 704-6288

                  if to Buyer:

                  HSBC James Capel Canada, Inc.
                  105 Adelaide Street West
                  Suite 1200
                  Toronto, Ontario M5H IP9 Canada
                  Attn:    Mr. Isser Elishis
                  Telephone:     (416) 947-2700
                  Telecopier:    (416) 947-9450

         All such notices and  communications  shall be deemed to have been duly
given: when delivered by hand, if personally delivered;  three (3) business days
after being deposited in the mail, postage prepaid, if mailed; the next business
day after  being  deposited  with an  overnight  courier,  if  deposited  with a
nationally recognized,  overnight courier service; when receipt is acknowledged,
if telecopied.

         16.  Entire   Agreement.   This   Agreement   constitutes   the  entire
understanding  and  agreement of the parties with respect to the subject  matter
hereof and supersedes all prior and/or contemporaneous oral or written proposals
or agreements  relating  thereto all of which are merged herein.  This Agreement
may not be amended or any provision hereof waived in whole or in part, except by
a written amendment signed by both of the parties.

         17. Counterparts. This Agreement may be executed by facsimile signature
and in counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

         IN WITNESS WHEREOF,  this Agreement was duly executed on the date first
written above.


                                                 Xybernaut Corporation

                                                 By:/s/ Steven A. Newman
                                                    ----------------------------
                                                 Name:  Steven A. Newman
                                                 Title: Vice-Chairman

                                                 HSBC James Capel Canada, Inc.


                                                 By: /s/ Isser Elishis
                                                     ---------------------------
                                                 Name: Isser Elishis
                                                 Title: Senior Vice President


                                                                     Exhibit 4.2

THIS  WARRANT  HAS NOT BEEN  REGISTERED  UNDER THE  SECURITIES  ACT OF 1933,  AS
AMENDED (THE "SECURITIES ACT") OR ANY OTHER APPLICABLE STATE SECURITIES LAWS AND
HAS BEEN ISSUED IN RELIANCE UPON  REGULATION D PROMULGATED  UNDER THE SECURITIES
ACT. THIS WARRANT SHALL NOT CONSTITUTE AN OFFER TO SELL NOR A SOLICITATION OF AN
OFFER TO BUY THE WARRANT IN ANY JURISDICTION IN WHICH SUCH OFFER OR SOLICITATION
WOULD BE UNLAWFUL.

THIS WARRANT MAY NOT BE SOLD,  PLEDGED,  TRANSFERRED OR ASSIGNED EXCEPT PURSUANT
TO AN  EFFECTIVE  REGISTRATION  STATEMENT  UNDER  THE  SECURITIES  ACT AND UNDER
APPLICABLE  STATE  SECURITIES  LAWS,  OR IN A  TRANSACTION  WHICH IS EXEMPT FROM
REGISTRATION  UNDER THE PROVISIONS OF THE SECURITIES ACT AND UNDER PROVISIONS OF
APPLICABLE STATE  SECURITIES LAWS; AND IN THE CASE OF AN EXEMPTION,  ONLY IF THE
COMPANY  HAS  RECEIVED  AN  OPINION OF COUNSEL  THAT SUCH  TRANSACTION  DOES NOT
REQUIRE  REGISTRATION  OF THE WARRANT,  WHICH OPINION AND WHICH COUNSEL SHALL BE
SATISFACTORY TO THE COMPANY IN ITS SOLE DISCRETION.

No. __

                                     WARRANT

                  To Purchase ______ Shares of Common Stock of

                              XYBERNAUT CORPORATION



                  THIS  CERTIFIES  that,  for value  received,  HSBC James Capel
Canada,  Inc. (the "Investor"),  is entitled,  upon the terms and subject to the
conditions hereinafter set forth, at any time on or after __________,  199_ [six
months after the draw down  exercise  date] and on or prior to  _________,  200_
[three years after issuance date] (the  "Termination  Date") but not thereafter,
to  subscribe  for  and  purchase  from  XYBERNAUT  CORPORATION,  a  corporation
incorporated  in the State of  Delaware  (the  "Company"),  ____________________
(______) shares (the "Warrant  Shares") of Common Stock,  par value US $0.01 per
share of the Company (the "Common  Stock").  The purchase  price of one share of
Common Stock (the "Exercise Price") under this Warrant shall be equal to 225% of
the Average Daily Price (as defined in the Agreement) of the Common Stock on the
date the Company  furnishes  the Investor with a Draw Down Notice (as defined in
the  Agreement).  The  Exercise  Price and the  number  of shares  for which the
Warrant is exercisable  shall be subject to adjustment as provided herein.  This
Warrant is being issued in  connection  with the  Subscription  Agreement  dated
September __, 1998 between the Investor and the Company (the  "Agreement"),  and
is subject to its terms and conditions. In the event of any conflict between the
terms of this Warrant and the Agreement, this Warrant shall control.

1. Title of Warrant.  Prior to the  expiration  hereof and subject to compliance
with applicable laws, this Warrant and all rights hereunder are transferable, in
whole or in part, at the office or agency of the Company by the holder hereof in
person or by duly authorized  attorney,  upon surrender of this Warrant together
with the Assignment Form annexed hereto properly endorsed.

                  2.  Authorization  of Shares.  The Company  covenants that all
shares  of  Common  Stock  which  may be  issued  upon the  exercise  of  rights
represented  by this Warrant will,  upon exercise of the rights  represented  by
this Warrant, be duly authorized,  validly issued,  fully paid and nonassessable
and free from all taxes,  liens and  charges  in  respect  of the issue  thereof
(other than taxes in respect of any transfer  occurring  contemporaneously  with
such issue).


                  3. Exercise of Warrant. Except as provided in Section 4 below,
exercise of the purchase  rights  represented by this Warrant may be made at any
time or times, before the close of business on the
<PAGE>



Termination  Date,  or such earlier date on which this Warrant may  terminate as
provided in this  Warrant,  by the  surrender  of this Warrant and the Notice of
Exercise  Form annexed  hereto duly  executed,  at the office of the Company (or
such  other  office or agency of the  Company as it may  designate  by notice in
writing to the registered  holder hereof at the address of such holder appearing
on the books of the  Company)  and upon  payment  of the  Exercise  Price of the
shares thereby purchased; whereupon the holder of this Warrant shall be entitled
to receive a certificate  for the number of shares of Common Stock so purchased.
Certificates  for shares  purchased  hereunder  shall be delivered to the holder
hereof within three (3) business days after the date on which this Warrant shall
have been  exercised as aforesaid.  Payment of the Exercise  Price of the shares
may be by certified  check or cashier's  check or by wire transfer to an account
designated by the Company in an amount equal to the Exercise Price multiplied by
the number of Warrant Shares.



                  4. No  Fractional  Shares or Scrip.  No  fractional  shares or
scrip  representing  fractional shares shall be issued upon the exercise of this
Warrant.



                  5. Charges,  Taxes and Expenses.  Issuance of certificates for
shares of Common Stock upon the  exercise of this Warrant  shall be made without
charge to the holder  hereof for any issue or transfer  tax or other  incidental
expense in respect of the issuance of such  certificate,  all of which taxes and
expenses shall be paid by the Company,  and such certificates shall be issued in
the  name of the  holder  of this  Warrant  or in such  name or  names as may be
directed by the holder of this  Warrant;  provided,  however,  that in the event
certificates  for  shares of Common  Stock are to be issued in a name other than
the name of the  holder of this  Warrant,  this  Warrant  when  surrendered  for
exercise  shall be  accompanied  by the  Assignment  Form  attached  hereto duly
executed by the holder  hereof;  and  provided  further,  that upon any transfer
involved in the  issuance or delivery of any  certificates  for shares of Common
Stock,  the Company may require,  as a condition  thereto,  the payment of a sum
sufficient to reimburse it for any transfer tax incidental thereto.



                  6.   Closing  of  Books.   The  Company  will  not  close  its
stockholder books or records in any manner which prevents the timely exercise of
this Warrant for a period of time in excess of five (5) trading days per year.



                  7. No Rights as Stockholder until Exercise.  This Warrant does
not  entitle  the  holder  hereof  to any  voting  rights  or other  rights as a
stockholder of the Company prior to the exercise thereof.  Upon the surrender of
this Warrant and the payment of the aggregate Exercise Price, the Warrant Shares
so  purchased  shall be and be deemed to be issued to such  holder as the record
owner of such  shares  as of the close of  business  on the later of the date of
such surrender or payment.



                  8.  Assignment  and  Transfer of Warrant.  This Warrant may be
assigned by the surrender of this Warrant and the Assignment Form annexed hereto
duly  executed at the office of the  Company (or such other  office or agency of
the Company as it may  designate by notice in writing to the  registered  holder
hereof at the address of such holder appearing on the books of the Company).



                  9. Loss,  Theft,  Destruction  or Mutilation  of Warrant.  The
Company  represents  and  warrants  that upon receipt by the Company of evidence
reasonably  satisfactory to it of the loss, theft,  destruction or mutilation of
this  Warrant  certificate  or any stock  certificate  relating  to the  Warrant
Shares,  and in case of loss,  theft or  destruction,  of  indemnity or security
reasonably  satisfactory  to it, and upon  surrender  and  cancellation  of such
Warrant or stock certificate,  if mutilated, the Company will make and deliver a
new  Warrant  or  stock   certificate  of  like  tenor  and  dated  as  of  such
cancellation, in lieu of such Warrant or stock certificate. 

<PAGE>



                  10.  Saturdays,   Sundays,  Holidays,  etc.  If  the  last  or
appointed  day for the  taking  of any  action  or the  expiration  of any right
required or granted herein shall be a Saturday,  Sunday or a legal holiday, then
such action may be taken or such right may be exercised  on the next  succeeding
day not a legal holiday.



                  11.      Effect of Certain Events.



                  (a) If at any  time  the  Company  proposes  (i)  to  sell  or
otherwise  convey  all or  substantially  all of its  assets or (ii) to effect a
transaction  (by merger or otherwise) in which more than 50% of the voting power
of the Company is disposed of (collectively, a "Sale or Merger Transaction"), in
which the  consideration  to be  received  by the  Company  or its  shareholders
consists solely of cash, then the Warrant shall terminate if the Warrant has not
been exercised by the effective date of such transaction, the Company shall give
the holder of this Warrant thirty (30) days' notice of such  termination  and of
the proposed effective date of the transaction.



                  (b) In case the  Company  shall  at any time  effect a sale or
merger  transaction in which the  consideration to be received by the Company or
its shareholders  consists in part of consideration  other than cash, the holder
of this Warrant shall have the right thereafter to purchase, by exercise of this
Warrant and payment of the aggregate  Exercise Price in effect immediately prior
to such action,  the kind and amount of shares and other securities and property
which it would have owned or have been  entitled to receive  after the happening
of such transaction had this Warrant been exercised immediately prior thereto.



                  (c) The  Company  agrees  that  the  Warrant  Shares  shall be
included in the registration  statement to be filed in accordance with the terms
of the Agreement.



                  12.  Adjustments  of  Exercise  Price and  Number  of  Warrant
Shares. The number and kind of securities  purchasable upon the exercise of this
Warrant and the Exercise Price shall be subject to adjustment  from time to time
upon the happening of any of the following.



                  In case the  Company  shall (i)  declare or pay a dividend  in
shares  of Common  Stock or make a  distribution  in  shares of Common  Stock to
holders of its outstanding  Common Stock, (ii) subdivide its outstanding  shares
of Common  Stock,  (iii) combine its  outstanding  shares of Common Stock into a
smaller number of shares of Common Stock or (iv) issue any shares of its capital
stock in a  reclassification  of the  Common  Stock,  then the number of Warrant
Shares purchasable upon exercise of this Warrant immediately prior thereto shall
be adjusted so that the holder of this Warrant  shall be entitled to receive the
kind and number of Warrant  Shares or other  securities  of the Company which he
would  have  owned or have  been  entitled  to  receive  had such  Warrant  been
exercised in advance  thereof.  Upon each such adjustment of the kind and number
of Warrant  Shares or other  securities  of the  Company  which are  purchasable
hereunder,  the holder of this Warrant shall  thereafter be entitled to purchase
the number of Warrant Shares or other securities  resulting from such adjustment
at an  Exercise  Price per such  Warrant  Share or other  security  obtained  by
multiplying the Exercise Price in effect immediately prior to such adjustment by
the number of Warrant Shares  purchasable  pursuant hereto  immediately prior to
such adjustment and dividing by the number of Warrant Shares or other securities
of the Company  resulting from such  adjustment.  An adjustment made pursuant to
this paragraph shall become  effective  immediately  after the effective date of
such event retroactive to the record date, if any, for such event.             

<PAGE>



                  13.  Voluntary  Adjustment by the Company.  The Company may at
any time during the term of this Warrant, reduce the then current Exercise Price
to any  amount  and for any period of time  deemed  appropriate  by the Board of
Directors of the Company.



                  14.  Notice of  Adjustment.  Whenever  the  number of  Warrant
Shares or number or kind of securities or other  property  purchasable  upon the
exercise of this Warrant or the Exercise Price is adjusted,  as herein provided,
the Company shall promptly mail by registered or certified mail,  return receipt
requested,  to  the  holder  of  this  Warrant  notice  of  such  adjustment  or
adjustments  setting forth the number of Warrant Shares (and other securities or
property)  purchasable  upon the exercise of this Warrant and the Exercise Price
of such Warrant Shares (and other securities or property) after such adjustment,
setting  forth a brief  statement of the facts  requiring  such  adjustment  and
setting forth the computation by which such adjustment was made. Such notice, in
absence of manifest  error,  shall be conclusive  evidence of the correctness of
such adjustment.



                  15. Authorized  Shares.  The Company covenants that during the
period the Warrant is  outstanding,  it will  reserve  from its  authorized  and
unissued Common Stock a sufficient  number of shares to provide for the issuance
of the  Warrant  Shares  upon the  exercise of any  purchase  rights  under this
Warrant.  The Company further  covenants that its issuance of this Warrant shall
constitute  full  authority  to its  officers  who are charged  with the duty of
executing stock certificates to execute and issue the necessary certificates for
the Warrant Shares upon the exercise of the purchase  rights under this Warrant.
The Company will take all such  reasonable  action as may be necessary to assure
that such Warrant Shares may be issued as provided  herein without  violation of
any applicable law or regulation, or of any requirements of the NASDAQ Small Cap
Stock Market or any domestic securities exchange upon which the Common Stock may
be listed.



                  16.      Miscellaneous.



                  (a) Issue Date;  Jurisdiction.  The provisions of this Warrant
shall be  construed  and shall be given effect in all respects as if it had been
issued and  delivered by the Company on the date hereof.  This Warrant  shall be
binding  upon any  successors  or assigns of the  Company.  This  Warrant  shall
constitute a contract  under the laws of New York without regard to its conflict
of law, principles or rules, and be subject to arbitration pursuant to the terms
set forth in the Agreement.



                  (b)  Restrictions.  The holder  hereof  acknowledges  that the
Warrant Shares  acquired upon the exercise of this Warrant,  if not  registered,
will have restrictions upon resale imposed by state and federal securities laws.
Each  certificate  representing  the  Warrant  Shares  issued to the Holder upon
exercise will bear the following legend:

                  "THE SECURITIES  EVIDENCED BY THIS  CERTIFICATE  HAVE NOT BEEN
         REGISTERED  UNDER THE U.S.  SECURITIES  ACT OF 1933,  AS  AMENDED  (THE
         "SECURITIES  ACT"),  OR ANY OTHER  APPLICABLE  SECURITIES LAWS AND HAVE
         BEEN  ISSUED  IN  RELIANCE  UPON AN  EXEMPTION  FROM  THE  REGISTRATION
         REQUIREMENTS  OF THE  SECURITIES  ACT AND SUCH OTHER  SECURITIES  LAWS.
         NEITHER THIS SECURITY NOR ANY INTEREST OR  PARTICIPATION  HEREIN MAY BE
         REOFFERED,   SOLD,   ASSIGNED,   TRANSFERRED,    PLEDGED,   ENCUMBERED,
         HYPOTHECATED OR OTHERWISE  DISPOSED OF, EXCEPT PURSUANT TO AN EFFECTIVE
         REGISTRATION  STATEMENT  UNDER  THE  SECURITIES  ACT OR  PURSUANT  TO A
         TRANSACTION THAT IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION".

<PAGE>

                  (c) Modification  and Waiver.  This Warrant and any provisions
hereof may be changed, waived, discharged or terminated only by an instrument in
writing signed by the party against which enforcement of the same is sought.

                  (d) Notices. Any notice, request or other document required or
permitted to be given or delivered to the holders hereof by the Company shall be
delivered or shall be sent by certified or registered mail, postage prepaid,  to
each such  holder at its  address as shown on the books of the Company or to the
Company at the address set forth in the Agreement.

                  IN WITNESS WHEREOF,  the Company has caused this Warrant to be
executed by its officer thereunto duly authorized.

Dated:
                                      XYBERNAUT CORPORATION


                                      By   _____________________________________
                                           Edward G. Newman
                                           President and Chief Executive Officer


<PAGE>





                               NOTICE OF EXERCISE



To:      XYBERNAUT CORPORATION



                  (1) The undersigned  hereby elects to purchase ________ shares
of Common  Stock,  par value $ per shares  (the  "Common  Stock")  of  XYBERNAUT
CORPORATION  pursuant to the terms of the attached Warrant, and tenders herewith
payment of the exercise  price in full,  together with all  applicable  transfer
taxes, if any.

                  (2) Please issue a certificate  or  certificates  representing
said shares of Common Stock in the name of the undersigned or in such other name
as is specified below:

                           -------------------------------
                           (Name)

                           -------------------------------
                           (Address)
                           -------------------------------


                  (3) The shares of Common Stock being issued in connection with
the exercise of the attached  Warrant are [not] being issued in connection  with
the sale of the Common Stock.


Dated:


                                  ------------------------------
                                  Signature


<PAGE>



                                 ASSIGNMENT FORM

                    (To assign the foregoing warrant, execute
                   this form and supply required information.
                 Do not use this form to exercise the warrant.)



                  FOR VALUE RECEIVED, the foregoing Warrant and all rights
 evidenced thereby are hereby assigned to

_______________________________________________ whose address is

- ---------------------------------------------------------------.



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

                                               Dated:  ______________, 199_/2000


                           Holder's Signature:  _____________________________

                           Holder's Address:    _____________________________

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



Signature Guaranteed:  ___________________________________________




NOTE: The signature to this  Assignment Form must correspond with the name as it
appears on the face of the Warrant,  without  alteration or  enlargement  or any
change whatsoever,  and must be guaranteed by a bank or trust company.  Officers
of  corporations  and  those  acting  in an  fiduciary  or other  representative
capacity  should  file  proper  evidence of  authority  to assign the  foregoing
Warrant.

                                                                       Exhibit 5




                                                     December 14, 1998

Xybernaut Corporation
12701 Fair Lakes Circle
Fairfax, Virginia 22033

Gentlemen:

         We  have  acted  as  counsel  to  Xybernaut  Corporation,   a  Delaware
corporation  (the "Company"),  in connection with the Registration  Statement on
Form S-3 (the  "Registration  Statement")  being filed with the  Securities  and
Exchange  Commission  under the Securities Act of 1933, as amended,  relating to
the offering of 630,701  shares (the  "Shares") of Common Stock,  par value $.01
per share (the "Common Stock") of the Company.

         Capitalized  terms used herein and not defined  shall have the meanings
given to them in the Registration Statement.

         In connection with the foregoing, we have examined originals or copies,
satisfactory  to us, of the Company's (i)  Certificate  of  Incorporation,  (ii)
By-laws and (iii) resolutions of the Company's board of directors.  We have also
reviewed  such  other  matters  of law and  examined  and  relied  upon all such
corporate  records,  agreements,  certificates  and other  documents  as we have
deemed relevant and necessary as a basis for the opinion hereinafter  expressed.
In such  examination,  we have assumed the  genuineness of all  signatures,  the
authenticity  of all documents  submitted to us as originals and the  conformity
with the  original  documents  of all  documents  submitted  to us as  copies or
facsimiles.  As to any facts  material to such  opinion,  we have, to the extent
that  relevant  facts  were  not  independently  established  by us,  relied  on
certificates  of  public   officials  and  certificates  of  officers  or  other
representatives of the Company.

         Based upon and subject to the foregoing, we are of the opinion that the
Shares,  when  issued  pursuant  to the terms  and  conditions  of the  Purchase
Agreement  and Form of Warrant filed as exhibits to the  Registration  Statement
will be validly issued, fully paid and non-assessable.

         We hereby  consent to the  filing of this  opinion as an exhibit to the
Registration Statement.

                                        Very truly yours,


                                         /s/ Parker Chapin Flattau & Klimpl, LLP
                                             PARKER CHAPIN FLATTAU & KLIMPL, LLP



                                                                   Exhibit 23.1

                    



                       CONSENT OF INDEPENDENT ACCOUNTANTS


         We hereby consent to the  incorporation  by reference in the Prospectus
constituting part of this Registration Statement on Form S-3 of our report dated
March 31, 1998 appearing on page F-2 of Xybernaut Corporation's Annual Report on
Form  10-KSB  for the year  ended  December  31,  1997.  We also  consent to the
reference to us under the heading "Experts" in such Prospectus.

/s/ PricewaterhouseCoopers LLP
- -------------------------------------
PricewaterhouseCoopers LLP


McLean, VA
December 14, 1998


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