XYBERNAUT CORP
S-3, 1998-01-02
COMPUTER COMMUNICATIONS EQUIPMENT
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   As filed with the Securities and Exchange Commission on December __, 1997
                            Registration No.________

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


                       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               Proposed
                                                                          Maximum                 maximum           Amount of
  Title of each class of securities           Amount to               Aggregate price            Aggregate        registration
           to be registered               be registered (1)            Per share (2)        offering price (1)         fee
<S>                                       <C>                          <C>                  <C>                   <C>            

Common Stock, $.01 par value                  2,622,663                   $1.5938              $4,180,000.00        $1,233.10
per share
====================================== ======================= =========================  =====================  ================

(1)        Issuable upon the conversion of Series B Preferred Stock, which is estimated based on conversion terms set forth
           in the Certificate of Designation and the Registration Rights Agreement between the Company and the Selling
           Stockholders assuming conversion by the holders of 4,180 shares of the Series B Preferred Stock at 85% of the
           closing bid price of the Company's Common Stock on December 26, 1997.  These amounts are subject to
           adjustment and could be materially more or 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 is not intended to constitute a prediction as to the number of shares of Common Stock into which the Series
           B Preferred Stock will be converted.

(2)        Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(c); based on 85% of the
           closing bid price of the Company's Common Stock on the Nasdaq SmallCap Market on December 26, 1997.
</TABLE>

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>


Information   contained  herein  is  subject  to  completion  or  amendment.   A
registration  statement  relating  to these  securities  has been filed with the
Securities  and Exchange  Commission.  These  securities may not be sold nor may
offers to buy be accepted prior to the time the registration  statement  becomes
effective.  This  prospectus  shall  not  constitute  an  offer  to  sell or the
solicitation of an offer to buy nor shall there be any sale of these  securities
in any State in which such offer,  solicitation  or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.

                  SUBJECT TO COMPLETION, DATED DECEMBER _, 1997

PROSPECTUS
                        2,622,663 SHARES OF COMMON STOCK*
                           (par value $.01 per share)

                              XYBERNAUT CORPORATION

           This  Prospectus  pertains to the offer and sale from time to time of
up to 2,622,663  shares (the "Shares") of common stock, par value $.01 per share
(the "Common  Stock"),  of Xybernaut  Corporation  (the "Company") by or for the
account  of certain  Company  stockholders  (the  "Selling  Stockholders").  See
"Selling Stockholders."

           The Shares  offered  hereby may be sold by the  Selling  Stockholders
directly or through  agents,  underwriters or dealers as designated from time to
time or through a combination of such methods.  The Company will receive none of
the  proceeds  from any sale of  Shares  by or for the  account  of the  Selling
Stockholders.  The Selling  Stockholders and any broker-dealers that participate
with the Selling Stockholders in the distribution of the Shares may be deemed to
be  underwriters  and any  commissions  received  or profit  realized by them in
connection  with the  resale of the  Shares  might be deemed to be  underwriting
discounts  and  commissions  under the  Securities  Act of 1933, as amended (the
"Securities  Act"). See "Selling  Stockholders" and "Plan of Distribution."  The
Company has agreed to bear all  expenses  relating to this  registration,  other
than underwriting discounts and commissions. In addition, the Company has agreed
to indemnify the Selling  Stockholders  against certain  liabilities,  including
liabilities under the Securities Act.
See "Selling Stockholders" and "Plan of Distribution."

           The Common  Stock is quoted on the NASDAQ  SmallCap  Market under the
symbol  "XYBR".  On December 26, 1997, the closing bid price of the Common Stock
as reported by NASDAQ was $1.875.

           *The shares of Common Stock offered hereby include the resale of such
presently  indeterminate  number of shares of Common Stock as shall be issued in
respect of all shares of Common Stock  issuable upon  conversion of 4,180 shares
of the  Company's  Series B  Preferred  Stock,  par value  $.01  (the  "Series B
Preferred  Stock"),  placed in  separate  private  placements  in  November  and
December 1997 (the "Private  Placements").  The number of shares of Common Stock
indicated to be issuable in  connection  with such  transaction  and offered for
resale  hereby  is an  estimate  and is based  on the  conversion  set  forth in
Certificate  of  Designation  designating  the  Series B  Preferred  Stock  (the
"Certificate of Designation") and the terms of the Registration Rights Agreement
(the "Registration Rights Agreement") between the Company and one of the Selling
Stockholders,  and is subject to adjustment and could be materially more or 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. If, however,  all 4,180 shares of the Series B Preferred Stock
currently  outstanding  were converted  under the terms of conversion  using the
closing bid price of the Common  Stock as  reported  by NASDAQ on  December  26,
1997,  the Company  would be obligated  to issue a total of 2,622,663  shares of
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 into which the Series B  Preferred  Stock will be  converted.  See
"Risk  Factors -- Series B Preferred  Stock" and  "Description  of Securities --
Preferred Stock -- Series B Preferred Stock."

           The  Company's  executive  offices  are  located  at 12701 Fair Lakes
Circle, Fairfax, Virginia 22033 and its telephone number is (703) 631-6925.

         THE SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK AND
              PROSPECTIVE PURCHASERS SHOULD CAREFULLY CONSIDER THE
               FACTORS SPECIFIED UNDER THE CAPTION "RISK FACTORS"
                      LOCATED ON PAGE 5 OF THIS PROSPECTUS.

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


  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
       EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
           SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
             COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
                      PROSPECTUS. ANY REPRESENTATION TO THE
                         CONTRARY IS A CRIMINAL OFFENSE.

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


                      THE DATE OF THIS PROSPECTUS IS , 1997


<PAGE>


                             AVAILABLE INFORMATION

           The  Company  is  subject to the  informational  requirements  of the
Securities  Exchange  Act of 1934,  as amended  (the  "Exchange  Act"),  and, in
accordance therewith, files reports, proxy statements and other information with
the Securities and Exchange Commission (the "Commission").  Such reports,  proxy
statements  and other  information  filed by the  Company can be  inspected  and
copied at the public  reference  facilities  maintained by the Commission at 450
Fifth Street,  N.W.,  Washington,  D.C.  20549,  and at the  following  Regional
Offices of the Commission: New York Regional Office, 7 World Trade Center, Suite
1300, New York, New York 10048; and Chicago  Regional  Office,  Citicorp Center,
500 West Madison Street,  Suite 1400,  Chicago,  Illinois 60661.  Copies of such
material may be obtained from the Public Reference  Section of the Commission at
450 Fifth  Street,  N.W.,  Washington,  D.C.  20549,  at prescribed  rates.  The
Commission  also  maintains an Internet site on the World Wide Web that contains
reports,   proxy  and  information   statements  and  other   information  filed
electronically  by  the  Company   (http://www.sec.gov).   Such  reports,  proxy
statements  and other  information  can also be  inspected at the offices of The
Nasdaq Stock Market, 1735 K Street, N.W., Washington, D.C. 20006.

           This Prospectus does not contain all the information set forth in the
Registration   Statement  on  Form  S-3  (File  No.  _____)  (the  "Registration
Statement") of which this Prospectus forms a part,  including  exhibits relating
thereto, which has been filed with the Commission in Washington,  D.C. Copies of
the  Registration  Statement  and the  exhibits  thereto may be  obtained,  upon
payment of the fee  prescribed  by the  Commission,  or may be examined  without
charge, at the offices of the Commission.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

        The Company's (i) Annual Report on Form 10-KSB for the fiscal year ended
December 31, 1996; (ii) Quarterly  Reports on Form 10-QSB for the quarters ended
March 31, 1997,  June 30, 1997 and September 30, 1997;  (iii) Current  Report on
Form 8-K dated June 30, 1997; and (iv) the  description of the Company's  Common
Stock  contained in the  Company's  Registration  Statement on Form 8-A filed on
July 15, 1996 under the Exchange Act (File No. 0-15086),  each as filed with the
Commission  under the Exchange  Act, are  incorporated  into this  Prospectus by
reference.

           Each  document  filed  subsequent  to the  date  of  this  Prospectus
pursuant to Section  13(a),  13(c),  14 or 15(d) of the  Exchange Act before the
termination of this offering shall be deemed to be  incorporated by reference in
this  Prospectus  and to be a part  hereof  from the date of the  filing of such
documents.  Any statement  contained in a document  incorporated or deemed to be
incorporated  herein by reference  shall be deemed to be modified or  superseded
for purposes of this Prospectus to the extent that a statement  contained herein
or in any  other  subsequently  filed  document  that also is or is deemed to be
incorporated by reference herein modifies or supersedes such previous statement.
Any statement so modified or superseded  shall not be deemed to be a part hereof
except as so modified or superseded.

           THE COMPANY WILL PROVIDE WITHOUT CHARGE TO EACH PERSON, INCLUDING ANY
BENEFICIAL  OWNER,  TO WHOM A COPY OF THIS  PROSPECTUS  IS  DELIVERED,  UPON THE
WRITTEN OR ORAL REQUEST OF ANY SUCH PERSON, A COPY OF ANY DOCUMENT  INCORPORATED
BY REFERENCE IN THIS  PROSPECTUS  (OTHER THAN EXHIBITS  UNLESS SUCH EXHIBITS ARE
SPECIFICALLY  INCORPORATED BY REFERENCE IN SUCH  DOCUMENTS).  REQUESTS SHOULD BE
DIRECTED TO THE COMPANY, 12701 FAIR LAKES CIRCLE, FAIRFAX, VIRGINIA 22033, (703)
631-6925. ATTENTION: JOHN F.
MOYNAHAN.

                                      -2-
<PAGE>



                               PROSPECTUS SUMMARY

           The following  summary is qualified in its entirety by, and should be
read in conjunction with, the more detailed information and financial statements
and notes  thereto  appearing  elsewhere  or  incorporated  by reference in this
Prospectus.

           To inform  investors of the  Company's  future plans and  objectives,
this Prospectus (and other reports and statements  issued by the Company and its
officers from time to time) contain certain statements  concerning the Company's
future  results,   future  performance,   intentions,   objectives,   plans  and
expectations that are or may be deemed to be  "forward-looking  statements." The
Company's  ability  to do this  has  been  fostered  by the  Private  Securities
Litigation Reform Act of 1995 (the "Reform Act"), which provides a "safe harbor"
for  forward-looking  statements to encourage  companies to provide  prospective
information so long as those statements are accompanied by meaningful cautionary
statements  identifying  important  factors that could cause  actual  results to
differ materially from those discussed in the statement. The Company believes it
is in the best  interest of  investors to take  advantage  of the "safe  harbor"
provisions of the Reform Act. Such  forward-looking  statements are subject to a
number of known and unknown risks and uncertainties that, in addition to general
economic and business  conditions  and those  described in "Risk  Factors" could
cause the Company's  actual  results,  performance  and  achievements  to differ
materially from those described or implied in the forward-looking statements.

                                  THE OFFERING

Securities Registered..............2,622,663 shares of Common Stock to be issued
                                    upon conversion of the Company's outstanding
                                                       Series B Preferred Stock.

Common Stock outstanding
   prior to the offering hereby....14,209,112 shares of Common Stock (1)

Common Stock outstanding
   after the offering hereby...... 16,831,775 shares of Common Stock (1) (2)

Common Stock trading symbol
   on NASDAQ ......................XYBR

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

(1)     Does not include  (i)  1,642,830  shares of Common  Stock  reserved  for
        issuance upon the exercise of outstanding  options,  (ii) 287,860 shares
        of Common  Stock  reserved  for issuance  upon  exercise of  outstanding
        warrants to purchase  Common  Stock,  (iii)  3,846,429  shares of Common
        Stock reserved for issuance upon exercise of outstanding warrants issued
        in connection  with the Company's  initial  public  offering (the "IPO")
        (iv) 1,285,713  shares of Common Stock registered for sale in connection
        with the Series A Preferred Stock and (v) 420,000 shares of Common Stock
        reserved for issuance upon exercise of an option granted pursuant to the
        Company's  IPO 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."


                                      -3-
<PAGE>



(2)        Assumes  the  number of  shares of the  Common  Stock  that  would be
           issuable  upon  conversion  by the holders of all 4,180 shares of the
           Series B Preferred Stock outstanding on December 1, 1997 using 85% of
           the closing bid price of the  Company's  Common  Stock as at December
           26,  1997.  See  "Risk  Factors   -Series  B  Preferred   Stock"  and
           "Description  of Securities -- Preferred  Stock -- Series B Preferred
           Stock."


                                      -4-
<PAGE>



                                  RISK FACTORS

           An investment in the shares of Common Stock offered hereby involves a
high  degree  of risk.  Prospective  investors  should  carefully  consider  the
following risk factors,  in addition to the other  information set forth in this
Prospectus,  in  connection  with an  investment  in the shares of Common  Stock
offered hereby.

SERIES A PREFERRED STOCK

           In June 1997, the Company sold 3,000 shares of the Series A Preferred
Stock,  each  share  with a  liquidation  preference  of $1,000  (the  "Series A
Liquidation Preference"), for an aggregate of $3 million. The Series A Preferred
Stock is convertible into Common Stock at discounts from future market prices of
the Common Stock, which could result in substantial dilution to existing holders
of  Common  Stock.  The  Company  must  reserve  and keep  available  out of its
authorized  but  unissued  shares of Common  Stock,  solely  for the  purpose of
effecting the conversion of the Series A Preferred  Stock,  at least such number
of its  Common  Stock  that  is  sufficient  to  effect  the  conversion  of all
outstanding  shares  of  the  Series  A  Preferred  Stock.  The  sale  or  other
disposition (for cash, shares of stock,  securities or other consideration),  of
all or substantially  all of the assets of the Company would entitle the holders
of the Series A Preferred  Stock to receive the Series A Liquidation  Preference
on all  their  shares  of Series A  Preferred  Stock  plus  accrued  and  unpaid
dividends.   The  Company  has  registered  1,285,713  shares  of  Common  Stock
underlying the Series A Preferred  Stock in a registration  statement filed with
the Commission on September 22, 1997. See "Description of Securities -- Series A
Preferred Stock."

SERIES B PREFERRED STOCK

        In November and December  1997,  the Company  placed 4,000 shares of the
Series B Preferred  Stock,  each share with a  liquidation  preference of $1,000
(the "Series B Liquidation Preference"), for an aggregate of $4,000,000 and paid
the  placement  agent for this sale with 180  shares of the  Series B  Preferred
Stock.  The  Series  B  Preferred  Stock is  convertible  into  Common  Stock at
discounts  from future market prices of the Common Stock,  which could result in
substantial  dilution  to existing  holders of Common  Stock.  The Company  must
reserve and keep available out of its  authorized but unissued  shares of Common
Stock,  solely  for the  purpose of  effecting  the  conversion  of the Series B
Preferred  Stock, at least such number of its Common Stock that is sufficient to
effect the conversion of all outstanding shares of the Series B Preferred Stock.
The sale or other  disposition (for cash,  shares of stock,  securities or other
consideration),  of all or substantially  all of the assets of the Company would
entitle  the  holders of the Series B  Preferred  Stock to receive  the Series B
Liquidation  Preference  on all their  shares of Series B  Preferred  Stock plus
accrued and unpaid  dividends.  The Company has  registered the shares of Common
Stock underlying the Series B Preferred Stock in a Registration  Statement filed
with the Commission.  If the Company does not file the Registration Statement by
December 12, 1997 or the Commission does not declare the Registration  Statement
effective by February 10, 1998, the Company must pay each holder of the Series B
Preferred  Stock 2% of the outstanding  Series B Liquidation  Preference of such
holder's  Series B Preferred Stock for the first month and 3% of the outstanding
Series B Liquidation  Preference  for each monthly  period  thereafter  that the
Registration  Statement  is  not  filed  or  is  not  declared  effective.   See
"Description of Securities -- Series B Preferred Stock."


                                      -5-
<PAGE>


HISTORY AND EXPECTATION OF FUTURE LOSSES; NEED FOR ADDITIONAL FINANCING

           The Company was incorporated in October 1990 and commenced operations
in November 1992. In the fiscal years ended March 31, 1994 and 1995, the Company
incurred a net loss of $47,352 and $1,303,892,  respectively. In the nine months
ended December 31, 1995, the Company  incurred a net loss of $2,141,190.  In the
year ended December 31, 1996, the Company incurred a net loss of $5,238,536.  In
the nine months ended  September  30, 1997,  the Company  incurred a net loss of
$7,064,518.  At September 30, 1997,  the Company had an  accumulated  deficit of
$15,839,457,   shareholders  equity  of  $2,910,454,   and  working  capital  of
$1,541,989.  The Company has a limited  operating history and intends to conduct
significant  additional  research,  development and testing that,  together with
establishment  of  marketing  and  distribution  capabilities,  are  expected to
require substantial  funding and to result in continuing  operating losses until
such time as  sufficient  gross  margins from  revenues  are  generated to cover
operating costs. There can be no assurance that,  notwithstanding  these efforts
and the  expenditure  of  substantial  funds,  the  Company  ever  will  achieve
substantial sales of any of its products or profitable  operations.  The success
of the Company will be affected by expenses,  operational difficulties and other
factors frequently  encountered in the development of a business enterprise in a
competitive environment, many of which may be beyond the Company's control.

LIQUIDITY; WORKING CAPITAL NEEDS

           To meet working  capital cash  requirements,  the Company  intends to
reduce  operating  expenses,  obtain a working  capital  line of  credit  and/or
complete  additional  financings.  However,  there can be no assurance  that the
Company can or will obtain  sufficient  funds to meet, in whole or in part,  its
working  capital  needs  from  collections  of  product  sales.  There can be no
assurance  that the  Company  will be  capable  of  raising  additional  capital
thereafter  or of  establishing  a working  capital line of credit,  or that the
terms upon  which  such  capital  or line of credit  would be  available  to the
Company  would be  acceptable,  in which case the  Company  could be required to
curtail materially, suspend or cease operations.

UNCERTAINTY OF MARKET DEVELOPMENT AND PRODUCT ACCEPTANCE

           The mobile computing  market is emerging and relatively  undeveloped.
The Company sold its first Mobile  Assistant(R)  in 1993 and as of September 30,
1997 had sold and delivered  approximately  $1.6 million of Mobile  Assistant(R)
systems.  The  Company  commenced  delivery  of  the  preproduction  586  Mobile
Assistant(R) in March 1997 and delivery of the  preproduction  Pentium(R) Mobile
Assistant  P-133(TM) in August 1997. In September  1997,  the Company  announced
linkAssist(TM), a software development toolkit, which provides speech linking of
data in almost any format,  without  altering the original data. The size of the
mobile computing  market is currently  limited by the high unit prices of mobile
computers as compared to laptops and other portable  computers,  the specialized
nature of each  application  and the need for  custom  applications  and  system
integration and the limited supply to date of components for completed  systems.
The  potential  size  of the  market  will  be  limited  by the  rate  at  which
prospective  customers  recognize and accept the functions and  capabilities  of
integrated  mobile  computing  systems.   There  can  be  no  assurance  that  a
significant  market will  develop for mobile  computing  systems or, if a market
develops,  that the Mobile  Assistant(R)  series and any of the Company's  other
products will become a significant factor in any market that develops.

           The   commercial   success   of  the  Mobile   Assistant(R)   series,
linkAssist(TM),  software  toolkits  enabling  the  Company's  customers to more
rapidly create  customized  software  applications on a stand-alone basis or for
use with the Mobile Assistant(R)  series, and any other product that the Company
may develop will depend upon acceptance by the commercial, healthcare, education
and military markets, of which there can be no assurance.

                                      -6-
<PAGE>


The Company believes 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 any of the Company's other products,  of which there can
be no assurance.

COMPETITION

           The computer  industry is intensely  competitive and is characterized
by rapid technological  advances,  evolving industry standards and technological
obsolescence.  Many of the Company's  current  competitors have longer operating
histories and greater financial, technical, sales, marketing and other resources
than the Company.  Several other  companies are engaged in the  manufacture  and
development of body-mounted or hand-held computing systems that compete with the
Mobile Assistant(R)  series,  including  InterVision,  Phoenix Group,  Computing
Devices  International,  a division of  Ceridian  Corporation,  ViA Inc.,  Texas
Microsystems,  Telxon,  Norand,  Interactive  Solutions,  Inc., a subsidiary  of
Teltronics, Inc. and a consortium of Litton and TRW. 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 the Company and can be expected to compete  vigorously with the Company for
the market at which the Mobile Assistant(R) is directed. The Company is aware of
at least three  competitors  that have introduced  hands-free  mobile  computing
systems that compete directly with the Mobile Assistant(R). In addition, new and
competing  technologies  are being  developed  in  hands-free  mobile  computing
systems.  There can be no  assurance  that the  Company  will be able to compete
successfully against its competitors or that the competitive  pressures faced by
the Company will not adversely affect its financial performance.

DEPENDENCE UPON SUPPLIERS

           To prepare the Mobile  Assistant(R)  for delivery to  customers,  the
Company  purchases system  components from several  suppliers,  who manufacture,
assemble,  integrate and test these components.  The Company then combines those
components and performs system tests prior to shipping.  Certain  components are
currently purchased from single suppliers.  The Company has entered into written
agreements with its suppliers for batteries, head-mounted displays and computing
units.  Although the Company  believes there are multiple sources for many parts
and components,  the Company currently depends heavily on its current suppliers.
Although  management  believes  that  the  Company  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 the Company to
experience  temporary  delays or  interruptions in supply while such changes are
incorporated.  Further,  because the order time for certain components may range
up to approximately  three months,  the Company also could experience  delays or
interruptions  in  supply in the event the  Company  is  required  to find a new
supplier for any of these  components.  Any  disruptions  in supply of necessary
parts and  components  from the Company's  key  suppliers  could have a material
adverse effect on the Company's  results of operations.  Any future  shortage or
limited  allocation  of  components  for the  Mobile  Assistant(R)  could have a
material adverse effect on the Company.

SUBSTANTIAL DEPENDENCE UPON SINGLE PRODUCT LINE; POSSIBILITY OF UNSUCCESSFUL NEW
PRODUCT DEVELOPMENT

           The Mobile  Assistant(R)  series currently  consists of two products:
one based on an AMD 5x86  processor  and the other based on an Intel  Pentium(R)
processor.  The Mobile Assistant(R) series are the Company's principal products,
and its success  will depend upon its  commercial  acceptance,  which  cannot be
assured. For single unit purchases,  the Mobile Assistant(R) currently is priced
from $4,995 to $8,995, depending upon the model and

                                      -7-
<PAGE>


selected  features.  As  technological  developments  cause declines in hardware
costs,  the Company  expects that mobile computer sales will be driven by system
capabilities and integration. There is no assurance that the Mobile Assistant(R)
will offer the  performance  capabilities  or features that customers will value
and, if not,  the  Company  could be required to modify the design of the Mobile
Assistant(R).  While  linkAssist(TM) and the Company's planned software toolkits
are intended for use both with the Mobile Assistant(R) series and independently,
there can be no assurance that a separate market for the Company's  existing and
planned  software  products  will  develop.  There can be no assurance  that any
products,  if sold,  will  generate  significant  revenues or any  profits.  The
Company is also  developing  additional  products  for the  Mobile  Assistant(R)
series  for  introduction  in the  future  and  intends  to  modify  the  Mobile
Assistant(R)  series for use in other applications and to develop other products
using its core technologies.  Additional product  development will result in the
Company  incurring  significant  research and  development  expenses that may be
unrecoverable should  commercialization of new products prove unsuccessful.  The
Company  also could  require  additional  funding if  research  and  development
expenses  are  greater  than  anticipated.  There can be no  assurance  that the
Company  will be  successful  in its future  product  development  efforts or in
diversifying its product line.

UNCERTAIN   PROTECTION  OF  PATENT  AND  PROPRIETARY  RIGHTS;  NO  ASSURANCE  OF
ENFORCEABILITY OR SIGNIFICANT COMPETITIVE ADVANTAGE

           The  Company   considers  its  patent,   trade  secrets,   and  other
intellectual  property  and  proprietary  information  to be  important  to  its
business prospects.  In September 1995, the Company received a notification from
the United  States Patent and Trademark  Office (the "Patent  Office")  entitled
"office action in reexamination" which indicated that the Company's claims under
its existing patent for the Mobile  Assistant(R)  were subject to  reexamination
and had been  preliminarily  rejected.  In May 1996, the Patent Officer issued a
Notice of Intent to Issue  Reexamination  Certificate and Reexamination  Reasons
for Patentability/Confirmation  with respect to the issues raised by the request
for reexamination  wherein it concluded that the Company's claims are patentable
with  respect to the issues  raised by the request for  reexamination.  In April
1996 the Company received  notification that a second reexamination  request had
been filed with the Patent Office by the same party that had initiated the prior
reexamination,  and in September 1996 the Company  received a notification  from
the Patent Office  entitled  "office action in  reexamination,"  which indicates
that  certain  claims under the patent were  subject to  reexamination  and were
preliminarily  rejected.  In November 1996, the Company filed a written response
to  the  request  for  reexamination  and  preliminary  rejection.   The  second
re-examination  has been  concluded  and the Patent  Office  sent the  Company a
"Notice of Intent to Issue Reexamination Certificate" indicating that the Patent
Office ruled in the Company's  favor.  Subsequently  on September 23, 1997,  the
Patent Office issued the  Reexamination  Certificate  to the Company  indicating
successful  results  for the company in the second  re-examination.  Most of the
Company's  revenue for the nine months ended  December 31, 1996 and for the nine
months ended  September 30, 1997 were derived from products  included within the
scope of the patent.  In October 1995,  the Company  filed a patent  application
covering  additional  embodiments and extensions of the technologies used in the
Mobile  Assistant(R)  series.  Notwithstanding  the  foregoing,  there can be no
assurance that the Company's pending patent  application will issue as a patent,
that any issued  patent will  provide the Company with  significant  competitive
advantages or that  challenges  will not be  instituted  against the validity or
enforceability  of any patent held by the  Company.  The cost of  litigation  to
uphold the  validity  and prevent  infringement  of patents can be  substantial.
There  also can be no  assurance  that  others  will not  independently  develop
similar  or  more  advanced  products,  design  patentable  alternatives  to the
Company's products or duplicate the Company's trade secrets.  The Company may in
some cases be required to obtain licenses from  third-parties or to redesign its
products or  processes to avoid  infringement.  The Company also relies on trade
secrets and proprietary  technology and enters into  confidentiality  agreements
with  its  employees  and  consultants.  There  can  be no  assurance  that  the
obligation to maintain the  confidentiality of such trade secrets or proprietary
information

                                      -8-
<PAGE>


will not be breached by employees or  consultants  or that the  Company's  trade
secrets  or  proprietary  technology  will  not  otherwise  become  known  or be
independently  developed by competitors in such a manner that the Company has no
practical recourse.

LIMITED  MARKETING  AND  DIRECT  SALES  EXPERIENCE;  DEPENDENCE  ON  OTHERS  FOR
MARKETING AND SALES.

           The Company intends to continue  development of a sales  organization
to market  and sell its  mobile  computing  products  to  value-added  resellers
("VARs"),  original equipment  manufacturers ("OEMs") and end users. The Company
is also developing a network of VARs and OEMs and to intends to enter into joint
ventures and licensing or other  collaborative  arrangements  to market and sell
its  mobile  computing  products.  The  Company  currently  is a  party  to  VAR
agreements with six entities.  Such arrangements may result in a loss of control
by the Company  over the  marketing  and sale of its  products.  There can be no
assurance  that the Company will be successful in entering into such  additional
arrangements  or be able  effectively  to manage and maintain its  relationships
with others, or that any marketing and sales efforts  undertaken for the Company
by others will be successful.  The Company also markets its products  outside of
the United States. A number of risks are inherent in international transactions,
such as the imposition of governmental  controls  including  restrictions on the
exporting of currency,  fluctuations in foreign currency exchange rates,  export
license requirements,  political and economic  instability,  trade restrictions,
changes in tariffs and  difficulties  and  expenses  in  managing  international
operations.  These and other factors beyond the Company's  control may adversely
affect the Company's ability to achieve significant sales.

DEPENDENCE UPON AND NEED FOR KEY PERSONNEL; LIMITED MANAGEMENT TEAM

           The Company's  success  depends to a significant  extent on Edward G.
Newman,  its  President,  Chief  Executive  Officer and Chairman of its Board of
Directors.  The loss of Mr. Newman would have a material  adverse  effect on the
Company's  progress and ultimate  likelihood of success.  Because the Company is
substantially  dependent on Mr.  Newman's  services and there are currently only
two other board-elected  officers of the Company,  the Company may be considered
to have limited  management.  Although the Company has entered into a three-year
employment  agreement with Mr. Newman, this agreement may not assure the Company
the continued services of Mr. Newman. The Company has obtained a key-person life
insurance  policy on the life of Mr.  Newman in the  amount of  $2,000,000.  The
Company's success also will depend upon its ability to attract and retain highly
qualified and experienced management and technical personnel.  The Company faces
competition for such personnel from numerous other entities,  many of which have
significantly greater resources than the Company. There can be no assurance that
the  Company  will be  successful  in  recruiting  such  personnel  or that,  if
recruited,  such persons would succeed in establishing profitable operations for
the Company.

CUSTOMER CONCENTRATION

           For the twelve  month period  ended  December  31,  1996,  two of the
Company's  customers accounted for 64% and 24%,  respectively,  of the Company's
revenues.  For the nine month period ended  September 30, 1997,  three customers
accounted  for  58% of the  Company's  revenues.  Accordingly,  the  Company  is
significantly  dependent on revenues derived from a limited number of customers.
The loss of one or more significant customers may have a material adverse effect
on the  ability  of the  Company  to  achieve  profitability.  To the extent the
Company's  dependence  increases on large corporate customers in the future, the
Company will be subject to an increased risk that the loss of any such customers
will have a material adverse effect on the Company's results of operations.  The
Company may remain  dependent in the immediate  future upon a limited  number of
customers  (the  identity  of which may be  subject  to  change)  for a material
percentage of its annual operating revenue.

                                      -9-
<PAGE>


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 the Company's  existing  products and products
currently under  development  obsolete and  unmarketable.  The Company's success
will depend upon its  ability to enhance  its current  products  and develop and
successfully  introduce and sell new products that keep pace with  technological
developments and respond to evolving end user  requirements.  Any failure by the
Company to anticipate or respond adequately to technological developments or end
user  requirements,   or  any  significant  delays  in  product  development  or
introduction, could damage the Company's competitive position in the marketplace
and reduce  revenues.  The Company  expects to increase  the size of its product
development  staff and to use outside  resources  in the near term to meet these
challenges.  There can be no assurance  that the Company will be  successful  in
hiring and training qualified product  development  personnel to meet its needs.
There can be no assurance  that the Company 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 the Company's results of operations.

INDUSTRY CYCLICALITY

           The  computer  industry  historically  has been  affected by periodic
downturns,  which  have had an  adverse  economic  effect  on  manufacturers  of
computer  hardware  and  software  as well as upon end  users of  computers.  In
addition, the life cycle of existing computer products and timing of new product
development  and  introduction  can affect  demand for  computer  products.  The
Company's  results of  operations  for any  particular  period may be  adversely
affected by numerous  factors,  such as the loss of key  suppliers or customers,
price competition,  problems encountered in managing inventories or receivables,
the timing or  cancellation  of purchase orders with suppliers and the timing of
expenditures in anticipation  of increased sales and customer  product  delivery
requirements,  if any. Price  competition in the computer  industry in which the
Company  competes is intense and could  result in gross  margin  declines  which
could have an adverse impact on the Company's financial performance.

EFFECT OF POSSIBLE NON-CASH FUTURE CHARGE

           As a condition to the Company's  initial public offering (the "IPO"),
certain of the Company's  stockholders,  primarily officers and directors,  have
been  required to deposit an aggregate of 1,800,000  shares of Common Stock into
an escrow account (the "Escrowed  Shares").  The Escrowed  Shares are subject to
incremental  release  over a three-year  period only in the event the  Company's
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.  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 the price described below),  the Escrowed Shares will be returned
to the Company in amounts which have been agreed upon between the Representative
and the Company for each period and canceled. In addition to the foregoing,  all
the then  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. In
the event any Escrowed  Shares held by officers,  employees and  consultants are
released, the difference between the initial offering price and the market value
of  such  shares  at the  time  of  release  will  be  deemed  to be  additional
compensation expense to the

                                      -10-

<PAGE>


Company.  Assuming the price of Common Stock is equal to or greater than the IPO
price of $5.50 (of which there can be no assurance), the release of the Escrowed
Shares would result in an earnings charge that would have the effect of reducing
or  eliminating  any earnings per share and could have a negative  effect on the
market price for the Common  Stock.  The  earnings per share target  calculation
will be based on the average number of shares issued and outstanding during each
period but excludes  shares issued  pursuant to a unit purchase  option  granted
pursuant to the IPO,  extraordinary items or compensation expense charged to the
Company  related to the release of the Escrowed  Shares.  The stock and earnings
targets for escrow  release for September 30, 1997 were not achieved and 300,000
shares were canceled from the escrow pool, which resulted in a reduction of 2.1%
of the Company's outstanding shares of Common Stock.

CONTROL BY EXISTING STOCKHOLDERS

           Following this offering, the Company's executive officers,  directors
and  principal   stockholders   will,  in  the   aggregate,   beneficially   own
approximately  42.9% of the Company's  outstanding shares of Common Stock. These
stockholders,  if acting  together,  will be able  effectively  to control  most
matters  requiring  approval by the  stockholders of the Company,  including the
election of  directors.  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

           The Company's Certificate of Incorporation provides that directors of
the Company shall not be personally  liable for monetary  damages to the Company
or its  stockholders  for a breach of fiduciary  duty as a director,  subject to
limited  exceptions.  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 directors of the Company.  See  "Indemnification for
Securities Act Liabilities."

SHARES ELIGIBLE FOR FUTURE SALE

           Sales of a substantial number of shares of the Company's Common Stock
in the public market  following this offering could adversely  affect the market
price of the Common Stock. Of the 18,117,488 shares of Common Stock that will be
outstanding or registered  for sale upon the  completion of this  offering,  the
3,846,429  shares  distributed  in  the  IPO,  1,285,713  shares  registered  in
connection with the Series A Preferred Stock and the 2,622,663 additional shares
of Common  Stock  registered  in this  offering  will be freely  tradeable.  The
remaining  10,362,683 shares of the Common Stock are "restricted  securities" as
that term is defined in Rule 144  promulgated  under the Securities  Act, and in
the future may only 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  Rule  144  commencing  90 days  from the date of this
Prospectus  and at various times  thereafter  through  November  1997.  However,
pursuant  to the terms of  agreements  entered  into  pursuant  to the IPO,  the
holders  of  9,905,437  shares of Common  Stock may not sell or dispose of their
shares of Common Stock until July 18, 1998 without prior written  consent of the
representative of the underwriter in the IPO (the "Representative").



                                      -11-

<PAGE>


SECURITIES ISSUABLE PURSUANT TO OPTIONS, WARRANTS AND THE UNIT PURCHASE OPTION

        At the date of this Prospectus, the Company has reserved an aggregate of
6,197,119 shares of Common Stock for issuance on exercise of outstanding options
and warrants. The exercise prices of the options presently outstanding are $0.01
per share for 250,000 shares  granted in September  1994, and $1.37 to $6.00 for
1,392,830  shares  granted  from April 1, 1995 to December 1, 1997.  In order to
retain  incentives for directors and current  employees during this stage of the
Company's development, the strike price for certain options was reduced to $3.00
per share by the  Company's  board of  directors  on August  28,  1997.  Current
control persons and board elected officers are not affected by this change.  The
exercise price of the 287,860 warrants granted between July 1, 1996 and December
1, 1997 is between $2.38 and $18.00 per share.  In connection with the Company's
IPO,  warrants to purchase  3,846,429 shares were issued that entitle the holder
to  purchase  a share of common  stock for $9.00  until  July 19,  1999.  At the
completion of the IPO, the Representative received an option (the "Unit Purchase
Option") to purchase  210,000 Units (the "Units"),  each unit  consisting of one
share of Common Stock and one  Redeemable  Warrant (a "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,  1997.  The Warrants  included in the Unit  Purchase
Option are exercisable at $12.60 per share.  During the terms of the outstanding
options,  warrants  and the Unit  Purchase  Option,  the  holders  are given the
opportunity  to profit from a rise in the market price of the Common Stock,  and
their  exercise  may dilute the  ownership  interest of  existing  stockholders,
including investors in this offering. The existence of the options, the warrants
and the Unit Purchase Option may adversely affect the terms on which the Company
may obtain  additional  equity  financing.  Moreover,  the holders are likely to
exercise  their rights to acquire  Common Stock at a time when the Company would
otherwise  be able to obtain  capital  on terms  more  favorable  than  could be
obtained through the exercise of such securities.

NO DIVIDENDS ANTICIPATED

           The Company has never paid any dividends on its  securities  and does
not anticipate the payment of dividends in the foreseeable future.

VOLATILITY OF STOCK PRICE

            The trading price of the Common Stock has been volatile,  and it may
continue to be so. Such trading price could be subject to wide  fluctuations  in
response to announcements of business and technical  developments by the Company
or its competitors,  quarterly variations in operating results, and other events
or factors,  including expectations by investors and securities analysts and the
Company's prospects.  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 the Common Stock.

IMPACT  OF SALE OF  COMMON  STOCK  UPON  CONVERSION  OF  SERIES  A AND  SERIES B
PREFERRED STOCK ON STOCK PRICE

           The Series A and Series B Preferred Stock are convertible into Common
Stock at discounts  from future market  prices of the Common Stock,  which 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.


                                      -12-

<PAGE>


ANTI-TAKEOVER CONSIDERATION; RIGHTS OF PREFERRED STOCK

           The Company's 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 A Preferred Stock
and the Series B 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 of the  Company.  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  management of the Company.
The Company has no present  intention to issue any additional  Preferred  Stock.
See "Description of Securities -- Preferred Stock."



                                      -13-

<PAGE>



                                 USE OF PROCEEDS

           The Shares being offered hereby are being  registered for the account
of the Selling Stockholders,  and, accordingly, the Company will not receive any
of the proceeds from the sale of the Shares.


                              SELLING STOCKHOLDERS

        The Shares  being  offered for resale by the Selling  Stockholders  were
acquired in connection  with the November and December  1997 private  placements
(the  "Private  Placements")  and  consist of the  Common  Stock  issuable  upon
conversion  of the Series B  Preferred  Stock.  Of the 4,180  shares of Series B
Preferred Stock placed in the Private Placements,  3,640 shares were placed with
one Selling Stockholder.  Such Selling Stockholder has purchased and the Company
has issued 3,000 shares of Series B Preferred Stock (the "Initial Shares"),  and
such Selling  Stockholder is  contractually  obligated to purchase the remaining
640 shares of Series B Preferred Stock (the  "Additional  Shares") ten (10) days
after the date of this  Prospectus.  The Additional  Shares must be purchased by
such Selling  Stockholder  subject  only to the  effective  registration  of the
Shares and that the  representations  and  warranties of the Company made on the
date the Initial  Shares  were  purchased  are true and correct in all  material
respects  on the date the  Additional  Shares  are  purchased.  Another  Selling
Stockholder  is  contractually  obligated  to  purchase  360  shares of Series B
Preferred Stock ten (10) days after the registration  statement  registering the
Shares is filed and 180  shares of Series B  Preferred  Stock  were  issued to a
Selling  Stockholder  for  serving  as  the  placement  agent  for  the  Private
Placements.  In connection with the Private Placements,  the Company granted the
Selling  Stockholders  certain registration rights pursuant to which the Company
agreed to use its best efforts to keep the Registration Statement, of which this
Prospectus is a part, effective until the earliest of (i) the second anniversary
of the issuance date of the Series B Preferred Stock,  (ii) the date the Selling
Stockholders  may sell all the Shares under the  provisions of Rule 144 or (iii)
the date the Selling Stockholders no longer own any of the Shares.

           The  following  table sets forth  certain  information  regarding the
ownership of shares of Common Stock by the Selling  Stockholders  as of December
31, 1997, and as adjusted to reflect the sale of the Shares.  The information in
the table  concerning  the  Selling  Stockholders  who may offer  Common  Shares
hereunder from time to time is based on  information  provided to the Company by
such  stockholder,  except  for the  assumed  conversion  ratio of shares of the
Series B  Preferred  Stock  into  Common  Stock,  which is based  solely  on the
assumptions  referenced  in  footnotes  (1)  and (2) to the  table.  Information
concerning the Selling Stockholders may change from time to time and any changes
of which the Company is advised will be set forth 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                   Shares of
                                Owned Prior to                Common Stock
                                   Offering                 to be Sold (1)(2)         Number              Percent
                             ---------------------        ---------------------   ---------------   ----------------
<S>                          <C>                          <C>                     <C>               <C>    

Melcombe Invest. Ltd. (3)             -0-                        2,283,850         2,283,850                13.6%
Settondown Capital                    -0-                          150,584           150,584                 0.9%
   International Ltd.
Tonga Partners, L.P.                  -0-                          188,229           188,229                 1.1%
                                                                 ---------         ---------                -----
     Total                            -0-                        2,622,223         2,622,223                15.6%
                                                                 =========         =========                =====

- -----------------
</TABLE>


                                      -14-

<PAGE>


(1)        Assumes that the Selling  Stockholders will convert all of its Series
           B Preferred  Stock into Common Stock based upon an average of closing
           bid and ask price of $1.875. The Selling Stockholder may convert each
           share of the Series B  Preferred  Stock into such number of shares of
           Common  Stock  as is  determined  by  dividing  $1,000  by 85% of the
           average  closing bid price on the Nasdaq SmallCap Market for the five
           trading days prior to the date of conversion.
(2)        Assumes that each Selling Stockholder sells a pro-rata portion of the
           2,622,663  shares of Common Stock offered hereby during the effective
           period of the Registration Statement.  The actual number of shares of
           Common  Stock  offered  hereby  is  subject  to  change  and could be
           materially less than the estimated amount  indicated,  depending upon
           (i) the average  closing  bid price of the Common  Stock for the five
           trading days prior to the date of conversion, (ii) whether any of the
           Series B  Preferred  Stock has been  redeemed  and (iii)  whether the
           number of shares of the Series B Preferred  Stock or the Common Stock
           outstanding  have been  adjusted to account  for any stock  dividend,
           stock  split,   recapitalization,   merger,  consolidation  or  other
           adjustment.
(3)        Each  Selling   Stockholder  has  agreed  that  neither  it  nor  any
           subsequent holder of its Series B Preferred Stock will, following any
           conversion of such Series B Preferred  Stock, be the beneficial owner
           of 4.99% or more of the then issued and outstanding  shares of Common
           Stock.

           The Selling  Shareholders  are not affiliated  with the Company.  The
Selling  Stockholders  have not had any material  relationship  with the Company
within the past three years.


                            DESCRIPTION OF SECURITIES

GENERAL

           The  authorized  capital stock of the Company  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,  14,209,112
shares of Common  Stock are issued  and  outstanding,  2,250  shares of Series A
Preferred  Stock  are  issued  and  outstanding  and  3,180  shares  of Series B
Preferred Stock are issued and outstanding.  The Company  currently has reserved
6,197,119 shares of Common Stock for issuance  pursuant to outstanding  options,
warrants and the Unit Purchase Option.

COMMON STOCK

           The  holders of the Common  Stock are  entitled  to one vote for each
share held of record on all matters  submitted  to a vote of  stockholders.  The
Company's 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  a
liquidation,  dissolution or winding up of the Company,  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 of the Company.  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


                                      -15-

<PAGE>

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 A Preferred Stock

           On June 30, 1997, the Board of Directors authorized the issuance of a
series of Preferred  Stock  consisting  of 3,000 shares (the "Series A Preferred
Stock"),  each such  share of  Series A  Preferred  Stock has a stated  value of
$1,000 (the "Liquidation Preference"),  pursuant to a Certificate of Designation
(the  "Certificate of  Designation").  On September 29, 1997, the holders of the
Series A  Preferred  Stock  converted  a  portion  of their  holdings  and as of
December 1, 1997,  three different  entities owned the remaining 2,250 shares of
the Series A Preferred Stock.

           Dividends.  The holders of the shares of Series A Preferred Stock are
entitled to  receive,  when and as  declared  by the Board of  Directors  of the
Company,  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 A Preferred Stock from the date of initial  issuance.  Such dividends are
in preference to any distributions on any outstanding  shares of Common Stock or
any other  equity  securities  of the Company  that are junior to the  Preferred
Stock as to the payment of dividends.

           Preferences  on  Liquidation.  In  the  event  of  any  voluntary  or
involuntary  liquidation,  dissolution or winding up of the Company, the holders
of shares of the Series A Preferred Stock then outstanding  shall be entitled to
be paid,  out of the assets of the Company  available  for  distribution  to its
stockholders,  an amount equal to the  Liquidation  Preference for each share of
Series A  Preferred  Stock  owned by such  holder,  plus all  accrued and unpaid
dividends thereon to the date of payment. If upon liquidation,  dissolution,  or
winding up of the Company,  the assets of the Company available for distribution
to its  stockholders  shall be  insufficient  to pay the holders of the Series A
Preferred  Stock  the  full  Liquidation  Preference  plus  accrued  and  unpaid
dividends  to which they  respectively  shall be  entitled,  the  holders of the
Series A  Preferred  Stock  together  with the  holders  of any other  series of
Preferred  Stock ranking on a parity with the Series A Preferred Stock as to the
payments  of amounts  upon  liquidation,  dissolution  or winding up shall share
ratably in any distribution of assets according to the respective  amounts which
would  be  payable  in  respect  of all  such  shares  held  by  the  respective
stockholders.  The  sale or  other  disposition  (for  cash,  shares  of  stock,
securities or other consideration), of all or substantially all of the assets of
the Company shall be deemed to be a  liquidation,  dissolution  or winding up of
the Company but the merger or  consolidation of the Company into or with another
corporation  or  into  or  with  the  Company,  shall  not  be  deemed  to  be a
liquidation,  winding up or dissolution of the Company.  The holders of Series A
Preferred   Stock  shall  have  no  priority  or  preference   with  respect  to
distributions made by the Company in connection with the repurchase of shares of
Common  Stock issued to or held by  employees,  directors  or  consultants  upon
termination of their employment or services pursuant to agreements providing for
the right of said repurchase between the Company and such persons.

           Conversion Rights. The holders of Series A Preferred Stock shall have
conversion  rights as follows:  (i) no shares of Series A Preferred Stock may be
converted prior to September 28, 1997; (ii) at any time after September 28, 1997
through  December 31, 1997,  up to  twenty-five  (25%)  percent of the shares of
Series A Preferred Stock then outstanding may be converted, at the option of the
holders  thereof;  and (iii)  thereafter,  on January 1, 1998, April 1, 1998 and
July 1, 1998, an additional  twenty-five (25%) percent of the shares of Series A
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 A Preferred Stock
may be converted shall be determined by dividing the  Liquidation  Preference by
an


                                      -16-
<PAGE>



amount (the  "Conversion  Price")  equal to the lesser of (A) 82% of the average
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 A Preferred
Stock has  telecopied a notice of  conversion  to the Company  (the  "Conversion
Date") and (B) $3.50.

           In the event the shares of Series A Preferred Stock are not converted
within  ten  business  days of  receipt  by the  Company  of a valid  notice  of
conversion, the Company shall pay to the holder, by wire transfer, as liquidated
damages  for such  failure  and not as a penalty,  an amount in cash equal to 1%
percent per day of the purchase price of the shares of Series A Preferred  Stock
to be converted which shall run from the initial  Conversion Date and the holder
has the option to withdraw the notice of conversion  previously sent;  provided,
that the Company shall not be responsible for or required to pay such liquidated
damages if such failure to convert was not caused by any actions or omissions of
the Company.

           No fractional  shares of Common Stock shall be issued upon conversion
of the Series A Preferred  Stock. In lieu of any fractional  shares to which the
holder would  otherwise be  entitled,  the Company  shall pay cash equal to such
fraction  multiplied  by the  fair  market  value  of the  Common  Stock  on the
Conversion Date, as determined by the Company's Board of Directors.  The Company
shall not be obligated  to issue  certificates  evidencing  the shares of Common
Stock issuable upon conversion  unless either the  certificates  evidencing such
shares of Series A Preferred  Stock are delivered to the Company or its transfer
agent as provided  above,  or the holder  notifies  the Company or its  transfer
agent that such certificates have been lost, stolen or destroyed and executes an
agreement  satisfactory  to the Company to  indemnify  the Company from any loss
incurred by it in connection with such certificates.

           Upon any conversion of Series A Preferred Stock, the shares of Series
A Preferred  Stock that are  converted  shall not be  reissued  and shall not be
considered  outstanding  for any  purposes.  Upon  conversion of all of the then
outstanding  Series A Preferred Stock,  shares of Series A Preferred Stock shall
not be deemed  outstanding for any purpose  whatsoever and all such shares shall
be retired and canceled and shall not be reissued.

           On June 30, 1999,  the holders of the Series A Preferred  Stock shall
be  required to convert  all of their  outstanding  shares of Series A Preferred
Stock  into  shares of Common  Stock.  Until  converted,  the  Company  shall be
entitled to redeem  shares of Series A Preferred  Stock in  accordance  with the
Certificate of Designation,  regardless of whether or not a notice of conversion
has been received by the Company with respect to such shares.

           The Company  shall at all times when any shares of Series A Preferred
Stock shall be outstanding, reserve and keep available out of its authorized but
unissued stock, such number of shares of Common Stock as shall from time to time
be sufficient to effect the  conversion  of all  outstanding  shares of Series A
Preferred Stock.

           Redemption. At any time after September 28, 1997, the Company may, at
the option of the Board of Directors, redeem up to 50% of the outstanding shares
of the Series A Preferred Stock at the applicable  redemption  price,  provided,
that (x) the Company  shall have  received a notice of  conversion,  and (y) the
Conversion  Price is at or below $2.625.  At any time after  September 28, 1997,
the  Company  may,  at the  option of the Board of  Directors,  redeem  all or a
portion of the remaining 50% of the outstanding shares of the Series A Preferred
Stock at the applicable redemption price,  provided,  that (x) the Company shall
have  received a notice of  conversion,  and (y) the  Conversion  Price is at or
below $1.00. The Company shall give written notice by telecopy, to the holder of
Series A 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 shall state the Redemption Date, the Redemption
Price (as hereinafter defined), the number of shares of Series A Preferred


                                      -17-

<PAGE>


Stock of such  holders  to be  redeemed  and shall  call upon  such  holders  to
surrender to the Company on the Redemption  Date at the place  designated in the
notice such holders' redeemed stock. If fewer than all the outstanding shares of
Series A Preferred  Stock are to be redeemed,  the redemption  shall be pro rata
among  the  holders  of  Series A  Preferred  Stock and  subject  to such  other
provisions as may be determined by the Board of Directors.  The Redemption  Date
shall be no more than 10 days after receipt of written  notice from the Company.
If the Company fails to pay the  Redemption  Price on the  Redemption  Date, the
Company  shall  pay to the  holder a penalty  in an  amount in cash  equal to 2%
percent  of the  Redemption  Price to be paid on such  Redemption  Date.  If the
Company fails to pay the  Redemption  Price on the  Redemption  Date, the holder
shall  have the  right  to  convert  the  Series A  Preferred  Stock  previously
presented to the Company and not  redeemed.  The Company shall have the right to
redeem the Series A  Preferred  Stock in any  subsequent  redemption;  provided,
however,  that if the Company fails to pay the Redemption  Price in a subsequent
redemption within 10 days, the Company shall have the right to redeem the Series
A  Preferred  Stock  thereafter  only upon  wiring the  Redemption  Price to the
holders  simultaneously  with sending the notice of redemption.  On or after the
Redemption  Date,  the holders of shares of Series A Preferred  Stock called for
redemption  shall  surrender the  certificates  evidencing the shares called for
redemption  to the  Company  at the place  designated  in such  notice and shall
thereupon be entitled to receive payment of the Redemption Price.

           The  Company  shall have the option to redeem the Series A  Preferred
Stock at a price  determined as follows  (each, a "Redemption  Price"):  (i) any
portion of the first 25% of the  outstanding  shares of Series A Preferred Stock
at a cash price equal to 110% percent of the  Liquidation  Preference per share,
together  with all unpaid  dividends to and including  the  Redemption  Date, or
issue shares of Common Stock at a conversion rate equal to (x) $1,000 divided by
(y) 82% percent of the average 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 Conversion  Date;  (ii)
any portion of the second 25% percent of the outstanding  shares of the Series A
Preferred Stock at a cash price equal to 120% of the Liquidation  Preference per
share,  together with all unpaid dividends to and including the Redemption Date,
or issue shares of Common Stock at a conversion rate equal to (x) $1,000 divided
by (y) 82% of the average  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 Conversion Date; and (iii) any
portion of the  remaining  50% of the  outstanding  shares of Series A Preferred
Stock, if the Company  receives a Notice of Conversion and the Conversion  Price
of the Series A Preferred Stock is below $1.00, at a cash price equal to 110% of
the  Liquidation  Preference  per share,  together  with all  accrued and unpaid
dividends to and including the Redemption Date; provided,  however, that payment
of the  Redemption  Price  shall be made from any funds of the  Company  legally
available therefor.

           From and after the Redemption  Date (unless  default shall be made by
the Company in duly paying the Redemption  Price in which case all the rights of
the holders of such  shares  shall  continue),  the holders of the shares of the
Series A Preferred Stock called for redemption shall cease to have any rights as
stockholders of the Company, except the right to receive,  without interest, the
Redemption Price thereof upon surrender of certificates  representing the shares
of Series A Preferred Stock, and such shares shall not thereafter be transferred
(except  with the consent of the  Company) on the books of the Company and shall
not be deemed outstanding for any purpose whatsoever.

           There  shall be no  redemption  of any  shares of Series A  Preferred
Stock of the Company where such action would be in violation of applicable law.


                                      -18-

<PAGE>


           Call Option.  In the event the Company  closes on an offering for its
Common Stock at a price per share under  $6.00,  the Company may, at its option,
call all outstanding shares of Series A Preferred Stock at a call price equal to
200% of the Liquidation Preference.

           In the event the Company has an  offering  for its Common  Stock at a
price per share equal to or greater than $6.00, then the holders of the Series A
Preferred Stock shall be required to convert all outstanding  shares of Series A
Preferred  Stock into  shares of Common  Stock five  business  days prior to the
scheduled closing of such offering and each holder may, at its option,  sell its
shares of Common Stock as part of such offering.

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

           Status.  In case any  outstanding  shares of Series A 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 A Preferred Stock.

           Ranking;  Changes  Affecting  Series A Preferred  Stock. The Series A
Preferred   Stock  shall,   with  respect  to  dividend  rights  and  rights  on
liquidation, winding up and dissolution, (i) rank senior to any of the Company's
Common Stock and any other class or series of stock of the Company  which by its
terms shall rank junior to the Series A Preferred Stock, and (ii) rank junior to
any other class or series of stock of the Company  which by its terms shall rank
senior to the Series A Preferred Stock and (iii) rank on a pari passu basis with
the Series B  Preferred  Stock and any other  series of  Preferred  Stock of the
Company.

           So long as any shares of Series A  Preferred  Stock are  outstanding,
the  Company  shall  not (i)  alter or  change  any of the  powers  preferences,
privileges,  or  rights  of the  Series A  Preferred  Stock;  or (ii)  amend the
provisions of the Certificate of Designation affecting the ranking of the Series
A Preferred  Stock,  without  first  obtaining  the  approval by vote or written
consent, in the manner provided by law, of the holders of at least a majority of
the outstanding  shares of Series A Preferred Stock, as to changes affecting the
Series A Preferred Stock.

           Registration  Rights. The Company has registered the shares of Common
Stock underlying the Series A Preferred Stock in a registration  statement filed
with the Commission.

           Series B Preferred Stock

           On November 12, 1997, the Board of Directors  authorized the issuance
of a series  of  Preferred  Stock  consisting  of 3,000  shares  (the  "Series B
Preferred  Stock"),  each such  share of Series B  Preferred  Stock has a stated
value of $1,000 (the  "Liquidation  Preference"),  pursuant to a Certificate  of
Designation  (the  "Certificate  of  Designation").  As of December 1, 1997, one
entity owned all 3,000 shares of the Series B Preferred Stock.

           Dividends.  The holders of the shares of Series B Preferred Stock are
entitled to  receive,  when and as  declared  by the Board of  Directors  of the
Company,  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 B Preferred Stock from the date of initial  issuance.  Such dividends are
in preference to any distributions on any outstanding  shares of Common Stock or
any other  equity  securities  of the Company  that are junior to the  Preferred
Stock as to the payment of dividends.


                                      -19-

<PAGE>


           Preferences  on  Liquidation.  In  the  event  of  any  voluntary  or
involuntary  liquidation,  dissolution or winding up of the Company, the holders
of shares of the Series B Preferred Stock then outstanding  shall be entitled to
be paid,  out of the assets of the Company  available  for  distribution  to its
stockholders,  an amount equal to the  Liquidation  Preference for each share of
Series B  Preferred  Stock  owned by such  holder,  plus all  accrued and unpaid
dividends thereon to the date of payment. If upon liquidation,  dissolution,  or
winding up of the Company,  the assets of the Company available for distribution
to its  stockholders  shall be  insufficient  to pay the holders of the Series B
Preferred  Stock  the  full  Liquidation  Preference  plus  accrued  and  unpaid
dividends  to which they  respectively  shall be  entitled,  the  holders of the
Series B  Preferred  Stock  together  with the  holders  of any other  series of
Preferred  Stock ranking on a parity with the Series B Preferred Stock as to the
payments  of amounts  upon  liquidation,  dissolution  or winding up shall share
ratably in any distribution of assets according to the respective  amounts which
would  be  payable  in  respect  of all  such  shares  held  by  the  respective
stockholders.  The  sale or  other  disposition  (for  cash,  shares  of  stock,
securities or other consideration), of all or substantially all of the assets of
the Company shall be deemed to be a  liquidation,  dissolution  or winding up of
the Company but the merger or  consolidation of the Company into or with another
corporation  or  into  or  with  the  Company,  shall  not  be  deemed  to  be a
liquidation,  winding up or dissolution of the Company.  The holders of Series B
Preferred   Stock  shall  have  no  priority  or  preference   with  respect  to
distributions made by the Company in connection with the repurchase of shares of
Common  Stock issued to or held by  employees,  directors  or  consultants  upon
termination of their employment or services pursuant to agreements providing for
the right of said repurchase between the Company and such persons.

           Conversion Rights. The holders of Series B Preferred Stock shall have
conversion  rights as follows:  (i) no shares of Series B Preferred Stock may be
converted  prior to the earlier of (x) the  effective  date of the  Registration
Statement  covering the Shares and (y) February 10, 1998 (the "First  Conversion
Date"); (ii) during the thirty-day period after the First Conversion Date, up to
twenty-five  (25%)  percent  of the  shares of  Series B  Preferred  Stock  then
outstanding may be converted,  at the option of the holders  thereof;  and (iii)
during each  thirty-day  period  thereafter,  an  additional  twenty-five  (25%)
percent  of the  shares of Series B  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  B  Preferred  Stock  may be  converted  shall be
determined  by  dividing  the  Liquidation  Preference  and at the option of the
Company,  accrued and unpaid  dividends,  by an amount (the "Conversion  Price")
equal  to the 85% of the  average  closing  bid  price  of the  Common  Stock as
reported  on the Nasdaq  SmallCap  Market or any  successor  exchange or trading
market  in which  the  Common  Stock is listed  for the five  trading  days (the
"Average Trading Price")  preceding the date on which the holder of the Series B
Preferred  Stock has  telecopied  a notice of  conversion  to the  Company  (the
"Conversion  Date").  The Conversion Price shall not be greater than 120% of the
Average  Trading  Price on the date of  issuance  or less than an initial  floor
price of 50% of the Conversion Price on the date of issuance.  Commencing thirty
days after the First  Conversion Date and at the end of each  thirty-day  period
thereafter, the initial floor price will be reduced by 10%.

           In the event the shares of Series B Preferred Stock are not converted
within  ten  business  days of  receipt  by the  Company  of a valid  notice  of
conversion, the Company shall pay to the holder, by wire transfer, as liquidated
damages  for such  failure  and not as a penalty,  an amount in cash equal to 1%
percent per day of the purchase price of the shares of Series B Preferred  Stock
to be converted which shall run from the initial  Conversion Date and the holder
has the option to withdraw the notice of conversion  previously sent;  provided,
that the Company shall not be responsible for or required to pay such liquidated
damages if such failure to convert was not caused by any actions or omissions of
the Company.


                                      -20-

<PAGE>


           No fractional  shares of Common Stock shall be issued upon conversion
of the Series B Preferred  Stock. In lieu of any fractional  shares to which the
holder would  otherwise be  entitled,  the Company  shall pay cash equal to such
fraction  multiplied  by the  fair  market  value  of the  Common  Stock  on the
Conversion Date, as determined by the Company's Board of Directors.  The Company
shall not be obligated  to issue  certificates  evidencing  the shares of Common
Stock issuable upon conversion  unless either the  certificates  evidencing such
shares of Series B Preferred  Stock are delivered to the Company or its transfer
agent as provided  above,  or the holder  notifies  the Company or its  transfer
agent that such certificates have been lost, stolen or destroyed and executes an
agreement  satisfactory  to the Company to  indemnify  the Company from any loss
incurred by it in connection with such certificates.

           Upon any conversion of Series B Preferred Stock, the shares of Series
B Preferred  Stock that are  converted  shall not be  reissued  and shall not be
considered  outstanding  for any  purposes.  Upon  conversion of all of the then
outstanding  Series B Preferred Stock,  shares of Series B Preferred Stock shall
not be deemed  outstanding for any purpose  whatsoever and all such shares shall
be retired and canceled and shall not be reissued.

           On November  12,  1999,  the holders of the Series B Preferred  Stock
shall be  required  to  convert  all of their  outstanding  shares  of  Series B
Preferred Stock into shares of Common Stock. Until converted,  the Company shall
be entitled to redeem shares of Series B Preferred  Stock in accordance with the
Certificate of Designation,  regardless of whether or not a notice of conversion
has been received by the Company with respect to such shares.

           The Company  shall at all times when any shares of Series B Preferred
Stock shall be outstanding, reserve and keep available out of its authorized but
unissued stock, such number of shares of Common Stock as shall from time to time
be sufficient to effect the  conversion  of all  outstanding  shares of Series B
Preferred Stock.

           Redemption.  At any time after the date of  issuance  of the Series B
Preferred  Stock,  the  Company  may,  at the option of the Board of  Directors,
redeem any or all of the  outstanding  shares of the Series B Preferred Stock at
the applicable redemption price, provided,  that the holder shall have the right
to convert shares of Series B Preferred  Stock which are eligible for conversion
in the first five (5) days after  receiving a notice of  redemption up to 20% of
the Series B Preferred Stock in the aggregate owned by such holder.  The Company
shall give written notice by telecopy, to the holder of Series B Preferred Stock
to be redeemed,  which notice shall specify the date for redemption,  which date
shall be no later than five (5) business days after the date on which the notice
is delivered to the holder (the  "Redemption  Date"),  the Redemption  Price (as
hereinafter  defined),  the number of shares of Series B Preferred Stock of such
holders to be  redeemed  and shall call upon such  holders to  surrender  to the
Company  on the  Redemption  Date at the place  designated  in the  notice  such
holders'  redeemed stock.  If fewer than all the outstanding  shares of Series B
Preferred Stock are to be redeemed,  the redemption  shall be pro rata among the
holders of Series B Preferred Stock and subject to such other  provisions as may
be determined by the Board of Directors.  The  Redemption  Date shall be no more
than five (5) business days after receipt of written notice from the Company. If
the  Company  fails to pay the  Redemption  Price on the  Redemption  Date,  the
Company  shall  pay to the  holder  a  penalty  in an  amount  in cash  equal to
$100,000.  If the Company fails to pay the  Redemption  Price on the  Redemption
Date,  the Company  shall have the right to redeem the Series B Preferred  Stock
thereafter only upon wiring the Redemption  Price to the holders  simultaneously
with sending the notice of  redemption.  On or after the  Redemption  Date,  the
holders  of shares of Series B  Preferred  Stock  called  for  redemption  shall
surrender the  certificates  evidencing  the shares called for redemption to the
Company at the place  designated in such notice and shall  thereupon be entitled
to receive payment of the Redemption Price.

           The  Company  shall have the option to redeem all or a portion of the
outstanding  shares of Series B  Preferred  Stock at a cash price  equal to 122%
percent of the Liquidation Preference per share, together with all

                                      -21-

<PAGE>


unpaid dividends to and including the Redemption Date (the "Redemption  Price");
provided,  however,  that payment of the Redemption Price shall be made from any
funds of the Company legally available therefor.

           From and after the Redemption  Date (unless  default shall be made by
the Company in duly paying the Redemption  Price in which case all the rights of
the holders of such  shares  shall  continue),  the holders of the shares of the
Series B Preferred Stock called for redemption shall cease to have any rights as
stockholders of the Company, except the right to receive,  without interest, the
Redemption Price thereof upon surrender of certificates  representing the shares
of Series B Preferred Stock, and such shares shall not thereafter be transferred
(except  with the consent of the  Company) on the books of the Company and shall
not be deemed outstanding for any purpose whatsoever.

           There  shall be no  redemption  of any  shares of Series B  Preferred
Stock of the Company where such action would be in violation of applicable law.

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

           Status.  In case any  outstanding  shares of Series B 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 B Preferred Stock.

           Ranking;  Changes  Affecting  Series B Preferred  Stock. The Series B
Preferred   Stock  shall,   with  respect  to  dividend  rights  and  rights  on
liquidation, winding up and dissolution, (i) rank senior to any of the Company's
Common Stock and any other class or series of stock of the Company  which by its
terms shall rank junior to the Series B Preferred Stock, and (ii) rank junior to
any other class or series of stock of the Company  which by its terms shall rank
senior to the  Series B  Preferred  Stock and (iii)  shall  rank on a pari passu
basis with the Series A Preferred  Stock and any other series of Preferred Stock
of the Company.

           So long as any shares of Series B  Preferred  Stock are  outstanding,
the  Company  shall  not (i)  alter or  change  any of the  powers  preferences,
privileges,  or  rights  of the  Series B  Preferred  Stock;  or (ii)  amend the
provisions of the Certificate of Designation affecting the ranking of the Series
B Preferred  Stock,  without  first  obtaining  the  approval by vote or written
consent, in the manner provided by law, of the holders of at least a majority of
the outstanding  shares of Series B Preferred Stock, as to changes affecting the
Series B Preferred Stock.

           Registration Rights. The Company has agreed to register the shares of
Common  Stock  underlying  the  Series B  Preferred  Stock  in the  Registration
Statement  filed  with  the  Commission.  If the  Commission  does  not file the
Registration  Statement by December 12, 1997 or the Commission  does not declare
the Registration  Statement effective by February 10, 1998, the Company must pay
each holder of the Series B Preferred  Stock 2% of the  outstanding  Liquidation
Preference of such holder's  Series B Preferred Stock for the first month and 3%
of the  outstanding  Liquidation  Preference for each monthly period  thereafter
that the Registration Statement is not filed or is not declared effective.

           Other Designations of Preferred Stock


                                      -22-

<PAGE>


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

                    DELAWARE BUSINESS COMBINATION PROVISIONS

           As a Delaware  corporation,  the  Company  is 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  the  entire  interest  in the  Company  if such  acquisition  is not
approved by the Company's 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 its 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 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 Company's  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  Company's  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. The  Company's
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.



                                      -23-

<PAGE>


                              PLAN OF DISTRIBUTION

           The  distribution  of the Shares by the Selling  Stockholders  may be
effected from time to time in one or more transactions  (which may involve block
transactions),  in special offerings,  exchange  distributions  and/or secondary
distributions,  in  negotiated  transactions,  in  settlement  of short sales of
Common  Stock,  or a  combination  or such  methods  of sale,  at market  prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices or at negotiated  prices.  Such  transactions  may be effected on a stock
exchange, on the over-the-counter market or privately.  The Selling Stockholders
may effect such transactions by selling the Shares to or through broker-dealers,
and such  broker-dealers  may receive  compensation  in the form of underwriting
discounts,  concessions or commissions  from the Selling  Stockholders  for whom
they  may  act as  agent  (which  compensation  may be in  excess  of  customary
commissions). Without limiting the foregoing, 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 Stockholders and any broker-dealers or
other persons acting on the behalf of parties that participate with such Selling
Stockholders in the  distribution of the Shares may be deemed to be underwriters
and any  commissions  received  or profit  realized by them 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,  the Company is not aware of
any agreement, arrangement or understanding between any broker or dealer and the
Selling Stockholders with respect to the offer or sale of the Shares pursuant to
this Prospectus.

           At the time that any  particular  offering of Shares is made,  to the
extent  required  by  the  Securities  Act,  a  prospectus  supplement  will  be
distributed,  setting forth the terms of the  offering,  including the aggregate
number of  Shares  being  offered,  the names of any  underwriters,  dealers  or
agents,  any discounts,  commissions and other items  constituting  compensation
from the Selling  Stockholders  and any  discounts,  commissions  or concessions
allowed or reallowed or paid to dealers.

           Each of the  Selling  Stockholders  may from time to time  pledge the
Shares  owned  by it to  secure  margin  or  other  loans  made to such  Selling
Stockholder.  Thus,  the  person or entity  receiving  the  pledge of any of the
Shares may sell them, in a foreclosure sale or otherwise,  in the same manner as
described above for such Selling Stockholder.

           The Company will not receive any of the proceeds from any sale of the
Shares by the Selling Stockholders offered hereby.

           Pursuant to the Registration  Rights Agreements,  the Company and the
Selling  Stockholders  have  agreed to  indemnify  each  other  against  certain
liabilities,  including  liabilities under the Securities Act. The Company shall
bear  customary  expenses  incident  to the  registration  of the Shares for the
benefit of the Selling  Stockholders 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 Selling Stockholders.

           The  Company  has  agreed  to  use  its  best  efforts  to  keep  the
Registration  Statement of which this  Prospectus is a part effective  until the
earliest  of (i) the second  anniversary  of the  issuance  date of the Series B
Preferred Stock, (ii) the date the Selling  Stockholders may sell all the Shares
under the provisions of Rule 144 or (iii) the date the Selling  Stockholders  no
longer own any of the Shares.


                                      -24-

<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 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.

           Pursuant to the Registration  Rights  Agreement,  the Company and the
Selling  Stockholders  have  agreed to  indemnify  each  other  against  certain
liabilities, including liabilities under the Securities Act.

           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.

           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.


                                      -25-

<PAGE>



                                  LEGAL MATTERS

           The validity of the securities offered hereby will be passed upon for
the Company by Parker Chapin Flattau & Klimpl,  LLP, New York, New York.  Martin
Eric  Weisberg,  Esq., a member of the firm,  is a Director and the Secretary of
the Company.


                                     EXPERTS

           The consolidated  financial statements of the Company incorporated in
this  Prospectus by reference to the Company's  Annual Report on Form 10-KSB for
the year ended December 31, 1996 have been audited by Coopers & Lybrand  L.L.P.,
independent  accountants,  as set forth in their  report  dated March 31,  1997,
accompanying such financial statements, and are incorporated herein by reference
in  reliance  upon the  reports of such firm,  which  report is given upon their
authority as experts in accounting and auditing.


                                      -26-

<PAGE>



           NO DEALER,  SALESPERSON  OR ANY OTHER PERSON HAS BEEN  AUTHORIZED  TO
GIVE  ANY  INFORMATION  OR TO MAKE  ANY  REPRESENTATION  NOT  CONTAINED  IN THIS
PROSPECTUS  WITH RESPECT TO THE OFFERING MADE HEREBY.  THIS  PROSPECTUS DOES NOT
CONSTITUTE  AN  OFFER  TO SELL OR A  SOLICITATION  OF AN OFFER TO BUY ANY OF THE
SECURITIES  OFFERED  HEREBY TO ANY  PERSON OR BY ANYONE IN ANY  JURISDICTION  IN
WHICH SUCH OFFER OR SOLICITATION MAY NOT LAWFULLY BE MADE.  NEITHER THE DELIVERY
OF THIS PROSPECTUS NOR ANY SALE MADE HEREUNDER SHALL,  UNDER ANY  CIRCUMSTANCES,
CREATE  ANY  IMPLICATION  THAT THERE HAS BEEN NO CHANGE IN THE  INFORMATION  SET
FORTH HEREIN OR IN THE BUSINESS OF THE COMPANY SINCE THE DATE HEREOF.



                                TABLE OF CONTENTS

                                                              PAGE

Available Information............................................2
Incorporation of Certain Documents
     by Reference................................................2
Prospectus Summary...............................................3
Risk Factors.....................................................5
Use of Proceeds.................................................13
Selling Stockholders ...........................................13
Description of Securities.......................................14
Delaware Business Combination
     Provisions.................................................18
Plan of Distribution ...........................................20
Indemnification for Securities Act Liabilities..................21
Legal Matters...................................................22
Experts ........................................................22



                        2,622,663 SHARES OF COMMON STOCK
                         (Issuable upon the exercise of
                            Series B Preferred Stock)




                                   PROSPECTUS






                                       , 1997


<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.........$    1,200
                     Legal fees and expenses.......................$   30,000
                     Miscellaneous expenses........................$    5,000
                          Total....................................$   36,200
                                                                   ==========

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


                                     II - 1

<PAGE>


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.

                         NUMBER DESCRIPTION OF EXHIBIT

4.1    Form of Purchase Agreement
4.2    Form of Registration Rights Agreement
5.1    Opinion of Parker Chapin Flattau & Klimpl, LLP.
23.1   Consent of Coopers & Lybrand L.L.P.
23.2   Consent of Parker Chapin Flattau & Klimpl, LLP (included in their opinion
       filed as Exhibit 5.1).


ITEM 17.             UNDERTAKINGS.

           The undersigned registrant hereby undertakes:

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

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

                     (ii) 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.


                                     II - 2

<PAGE>


           (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 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, State of Virginia on December ___, 1997.

                                                XYBERNAUT CORPORATION


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



                                     II - 4

<PAGE>




                                POWER OF ATTORNEY

           KNOW ALL MEN BY THESE  PRESENTS,  that each  person  whose  signature
appears below  constitutes  and appoints  Edward G. Newman and John F. Moynahan,
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  (or  any  other
registration statement for the same offering that is to be effective upon filing
pursuant to Rule 462(b) under the Securities Act of 1933), and to file the same,
with all exhibits thereto and other documents in connection therewith,  with the
Securities  and Exchange  Commission,  granting unto said  attorney-in-fact  and
agent,  full power and  authority to do and perform each and every act and thing
requisite  or 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  attorney-in-fact  and agent or either 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.

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


/S/ EDWARD G. NEWMAN           Chairman of the Board,          December   , 1997
- --------------------           President and Chief
Edward G. Newman               Executive Officer


/S/ JOHN F. MOYNAHAN           Senior Vice President, Chief    December   , 1997
- --------------------           Financial Officer, Treasurer
John F. Moynahan               and Director


/S/ MARTIN ERIC WEISBERG       Secretary and Director          December   , 1997
- ------------------------                                                       
Martin Eric Weisberg


/S/ LT. GEN. HARRY E. SOYSTER  Director                        December   , 1997
- -----------------------------
Lt. Gen. Harry E. Soyster


/S/ JAMES J. RALABATE          Director                        December   , 1997
- ---------------------
James J. Ralabate


/S/ KEITH P. HICKS             Director                        December    ,1997
- ------------------                                                           
Keith P. Hicks


/S/ STEVEN A. NEWMAN           Director                        December    ,1997
- --------------------                                                           
Steven A. Newman


/S/ PHILLIP E. PEARCE          Director                        December    ,1997
- ---------------------                                                           
Phillip E. Pearce


/S/ EUGENE J. AMOBI            Director                        December    ,1997
- -------------------                                                            
Eugene J. Amobi


                                     II - 5
<PAGE>







                                 SECURITIES AND
                                    EXCHANGE
                                   COMMISSION

                             WASHINGTON, D.C. 20549


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




                                    EXHIBITS
                                       TO
                                    FORM S-3

                                  REGISTRATION
                                    STATEMENT

                                      UNDER

                               THE SECURITIES ACT
                                     OF 1933


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







<PAGE>



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




<PAGE>



                                  EXHIBIT INDEX

NUMBER               DESCRIPTION OF EXHIBIT

4.1                  Form of Purchase
                     Agreement
4.2                  Form of Registration
                     Rights Agreement
5.1                  Opinion of Parker
                     Chapin Flattau &
                     Klimpl, LLP.
23.1                 Consent of Coopers &
                     Lybrand L.L.P.
23.2                 Consent of Parker
                     Chapin Flattau &
                     Klimpl, LLP (included
                     in their opinion filed
                     as Exhibit 5.1).







               AMENDED AND RESTATED SECURITIES PURCHASE AGREEMENT


           THIS AMENDED AND RESTATED SECURITIES PURCHASE AGREEMENT,  dated as of
the date of acceptance set forth below, is entered into by and between XYBERNAUT
CORPORATION,  a Delaware  corporation,  with headquarters  located at 12701 Fair
Lakes Circle,  Fairfax,  Virginia 22033  ("Company"),  and the undersigned  (the
"Buyer").

                              W I T N E S S E T H:

           WHEREAS,  the  Company  and the Buyer,  in order to amend and restate
that  certain  Securities  Purchase  Agreement  to which they are  parties,  are
executing and delivering  this Agreement in accordance with and in reliance upon
the exemption from  securities  registration  afforded,  inter alia, by Rule 506
under  Regulation  D  ("Regulation  D")  as  promulgated  by the  United  States
Securities and Exchange Commission (the "SEC") under the Securities Act of 1933,
as amended (the "1933 Act"), and/or Section 4(2) of the 1933 Act; and

           WHEREAS, the Buyer wishes to purchase,  upon the terms and subject to
the conditions of this Agreement, 4% Convertible Preferred Stock, $.01 par value
per share (the  "Convertible  Preferred  Stock"),  of the Company  which will be
convertible into shares of Common Stock, $.01 par value per share of the Company
(the  "Common  Stock"),  upon the terms and  subject  to the  conditions  of the
Convertible  Preferred Stock, and subject to acceptance of this Agreement by the
Company;

           NOW  THEREFORE,  in  consideration  of the  premises  and the  mutual
covenants  contained  herein  and other  good and  valuable  consideration,  the
receipt and sufficiency of which are hereby  acknowledged,  the parties agree as
follows:

           1. AGREEMENT TO PURCHASE; PURCHASE PRICE.

           a. Purchase.  (i) The undersigned  hereby agrees to purchase from the
Company shares of the  Convertible  Preferred  Stock in the amounts set forth on
the signature page of this Agreement on the Closing Date (as defined below) (the
"Initial  Preferred  Stock"),  and on the  Additional  Closing  Date (as defined
below) (the "Additional Preferred Stock"), out of a total offering of $4,000,000
of such  Preferred  Stock,  and having the terms and conditions set forth in the
certificate of designation to the  Certificate of  Incorporation  of the Company
attached  hereto as Annex I (the  "Certificate  of  Designation").  The purchase
price for the Initial  Preferred Stock and the Additional  Preferred Stock shall
be as set forth on the  signature  page  hereto  and shall be  payable in United
States Dollars.


                                        1

<PAGE>



           (ii) As used  herein,  the term  "Preferred  Stock" means the Initial
Preferred Stock and the Additional Preferred Stock, unless the context otherwise
requires.

           (iii) As used  herein,  the term  "Securities"  means  the  Preferred
Stock.

           b. Form of Payment.  The Buyer shall pay the  purchase  price for the
Initial  Preferred Stock or the Additional  Preferred Stock, as the case may be,
by delivering  immediately  available good funds in United States Dollars to the
escrow agent (the "Escrow  Agent")  identified in the Joint Escrow  Instructions
attached  hereto  as  Annex  II  (the  "Joint  Escrow  Instructions").  Promptly
following  payment by the Buyer to the Escrow Agent of the purchase price of the
relevant  Preferred Stock, the Company shall deliver a certificate  representing
the  relevant  Preferred  Stock duly  executed  on behalf of the  Company to the
Escrow Agent. By signing this Agreement,  the Buyer and the Company, and subject
to  acceptance  by the  Escrow  Agent,  each  agrees  to all  of the  terms  and
conditions of, and becomes a party to, the Joint Escrow Instructions, all of the
provisions of which are incorporated herein by this reference as if set forth in
full.

           c. Method of Payment.  Payment into escrow of the purchase  price for
the relevant Preferred Stock shall be made by wire transfer of funds to:

                         Bank of New York
                         350 Fifth Avenue
                         New York, New York 10001

                         ABA# 021000018
                         For credit to the account of Krieger & Prager, Esqs.
                         Account No.:  637-1657450

Not later than 1:00 p.m.,  New York time,  on the date which is one (1) New York
Stock Exchange trading days after the Company shall have accepted this Agreement
and  returned a signed  counterpart  of this  Agreement  to the Escrow  Agent by
facsimile,  the Buyer shall deposit with the Escrow Agent the aggregate purchase
price for the Initial Preferred Stock, in currently  available funds. Time is of
the essence with respect to such payment,  and failure by the Buyer to make such
payment, shall allow the Company to cancel this Agreement.

           d.  Escrow  Property.  The  purchase  price  and  the  certificate(s)
representing  the Preferred  Stock delivered to the Escrow Agent as contemplated
by Sections 1(b) and (c) hereof are referred to as the "Escrow Property."


                                        2

<PAGE>



           2. BUYER  REPRESENTATIONS,  WARRANTIES,  ETC.; ACCESS TO INFORMATION;
INDEPENDENT INVESTIGATION.

           The Buyer  represents and warrants to, and covenants and agrees with,
the Company as follows:

           a. Without  limiting  Buyer's right to sell the Common Stock pursuant
to the  Registration  Statement  (as that term is  defined  in the  Registration
Rights Agreement defined below), the Buyer is purchasing the Preferred Stock and
will be acquiring  the shares of Common Stock  issuable  upon  conversion of the
Preferred Stock (the "Converted Shares") for its own account for investment only
and not with a view towards the public sale or distribution thereof and not with
a view to or for sale in connection with any distribution thereof;

           b. The Buyer is (i) an "accredited  investor" as that term is defined
in Rule 501 of the General Rules and Regulations under the 1933 Act by reason of
Rule 501(a)(3),  (ii) experienced in making investments of the kind described in
this Agreement and the related documents,  (iii) able, by reason of the business
and  financial  experience  of its  officers  (if an  entity)  and  professional
advisors (who are not  affiliated  with or compensated in any way by the Company
or any of its  affiliates  or selling  agents),  to protect its own interests in
connection with the  transactions  described in this Agreement,  and the related
documents,  and (iv) able to afford the  entire  loss of its  investment  in the
Securities;

           c. All  subsequent  offers and sales of the  Preferred  Stock and the
shares of Common  Stock  representing  the  Converted  Shares (such Common Stock
sometimes  referred to as the  "Shares") by the Buyer shall be made  pursuant to
registration  of the Shares under the 1933 Act or pursuant to an exemption  from
registration;

           d. The Buyer  understands  that the Preferred  Stock is being offered
and  sold  to it in  reliance  on  specific  exemptions  from  the  registration
requirements  of United States  federal and state  securities  laws and that the
Company is relying upon the truth and  accuracy  of, and the Buyer's  compliance
with,  the   representations,   warranties,   agreements,   acknowledgments  and
understandings  of the  Buyer  set  forth  herein  in  order  to  determine  the
availability  of such exemptions and the eligibility of the Buyer to acquire the
Preferred Stock and to receive the Shares upon conversion;

           e. The Buyer and its advisors,  if any, have been  furnished with all
materials  relating to the business,  finances and operations of the Company and
materials relating to the offer and sale of the Preferred Stock and the offer of
the Shares which have been requested by the Buyer, including Annex V hereto. The
Buyer and its  advisors,  if any,  have been  afforded  the  opportunity  to ask
questions of the Company and have received complete and satisfactory  answers to
any such inquiries.  Without limiting the generality of the foregoing, the Buyer
has also had the opportunity


                                        3

<PAGE>



to obtain and to review  the  Company's  (1) Annual  Report on Form 10-K for the
fiscal year ended December 31, 1997, (2) Quarterly  Reports on Form 10-Q for the
fiscal  quarters  ended June 30, 1997 and March 31,  1997,  (3) Forms 8-K dated,
June 30, 1997, and (4) Form S-3 filed on September 22, 1997 (the  "Company's SEC
Documents").

           f. The  Buyer  understands  that  its  investment  in the  Securities
involves a high degree of risk;

           g. The Buyer  understands  that no  United  States  federal  or state
agency or any other government or governmental  agency has passed on or made any
recommendation or endorsement of the Securities;

           h. This Agreement has been duly and validly authorized,  executed and
delivered  on behalf of the Buyer and is a valid and  binding  agreement  of the
Buyer enforceable in accordance with its terms,  subject as to enforceability to
general principles of equity and to bankruptcy, insolvency, moratorium and other
similar laws affecting the enforcement of creditors' rights generally.

           i. Neither the Buyer,  nor any  affiliate of the Buyer nor any person
acting on its or their  behalf,  has any  intention  of entering  into,  any put
option,  short position or other similar  instrument or position with respect to
the  Preferred  Stock  or the  Shares,  and  neither  the  Buyer  nor any of its
affiliates  nor any person  acting on its or their  behalf  will at any time use
Shares  acquired upon  conversion of the Preferred  Stock to settle or cover any
put option, short position or other similar instrument or position.

           j.  Notwithstanding  the provisions hereof or of the Preferred Stock,
in no event  (except with respect to an automatic  conversion  of the  Preferred
Stock as  provided  in the  Certificate  of  Designations)  shall the  holder be
entitled  to  convert  any  Preferred  Stock  to the  extent  that,  after  such
conversion,  the sum of (1) the  number of shares of Common  Stock  beneficially
owned by the Buyer and its  affiliates  (other than shares of Common Stock which
may be deemed  beneficially  owned  through  the  ownership  of the  unconverted
portion of the  Preferred  Stock),  and (2) the number of shares of Common Stock
issuable upon the  conversion  of the Preferred  Stock with respect to which the
determination  of this  proviso  is  being  made,  would  result  in  beneficial
ownership by the Buyer and its affiliates of more than 4.99% of the  outstanding
shares of Common Stock. For purposes of the proviso to the immediately preceding
sentence,  beneficial  ownership  shall be determined in accordance with Section
13(d) of the  Securities  Exchange  Act of 1934,  as amended  (the "1934  Act"),
except as otherwise provided in clause (1) of such proviso.

           3. COMPANY REPRESENTATIONS, ETC.

           The Company represents and warrants to the Buyer that:



                                        4

<PAGE>



           a. Concerning the Preferred Stock and the Shares. The Preferred Stock
has been duly  authorized,  and when  issued,  will be duly and validly  issued,
fully  paid and  non-assessable  and will not  subject  the  holder  thereof  to
personal  liability  by reason of being  such  holder.  There are no  preemptive
rights of any  stockholder  of the Company,  as such,  to acquire the  Preferred
Stock or the Converted Shares.

           b.  Reporting  Company  Status.  The  Company is a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Delaware and has the  requisite  corporate  power to own its  properties  and to
carry on its business as now being conducted. The Company is duly qualified as a
foreign  corporation to do business and is in good standing in each jurisdiction
where the nature of the business  conducted  or property  owned by it makes such
qualification necessary,  other than those jurisdictions in which the failure to
so qualify would not have a material adverse effect on the business,  operations
or condition (financial or otherwise) of the Company. The Company has registered
its Common Stock pursuant to Section 12 of the Securities  Exchange Act of 1934,
as amended (the  "Exchange  Act"),  and the Common Stock is listed and traded on
The NASDAQ/SmallCap  Market. The Company has received no notice,  either oral or
written,  with respect to the continued eligibility of the Common Stock for such
listing, and the Company has maintained all requirements for the continuation of
such listing.

           c.  Authorized  Shares.  The Company has  sufficient  authorized  and
unissued  Shares as may be reasonably  necessary to effect the conversion of the
Preferred Stock. The Converted Shares have been duly authorized and, when issued
upon  conversion  of, or as interest on, the Preferred  Stock,  will be duly and
validly issued,  fully paid and  non-assessable  and will not subject the holder
thereof to personal liability by reason of being such holder.

           d. Securities Purchase  Agreement;  Registration Rights Agreement and
Stock. This Agreement and the Registration  Rights Agreement,  the form of which
is attached hereto as Annex IV (the "Registration  Rights  Agreement"),  and the
transactions  contemplated thereby, have been duly and validly authorized by the
Company,  this Agreement has been duly executed and delivered by the Company and
this  Agreement is, and the  Registration  Rights  Agreement,  when executed and
delivered by the Company,  will be, valid and binding  agreements of the Company
enforceable  in  accordance  with  their   respective   terms,   subject  as  to
enforceability  to general  principles of equity and to bankruptcy,  insolvency,
moratorium,  and other  similar laws  affecting  the  enforcement  of creditors'
rights  generally;  and the Preferred Stock will be duly and validly  authorized
and, when  executed and  delivered on behalf of the Company in  accordance  with
this  Agreement,  will be a valid  and  binding  obligation  of the  Company  in
accordance  with its  terms,  subject  to  general  principles  of equity and to
bankruptcy,   insolvency,  moratorium,  or  other  similar  laws  affecting  the
enforcement of creditors' rights generally.

           e.  Non-contravention.  The execution and delivery of this  Agreement
and the  Registration  Rights  Agreement  by the  Company,  the  issuance of the
Securities, and the consummation


                                        5

<PAGE>



by the Company of the other  transactions  contemplated by this  Agreement,  the
Registration  Rights  Agreement,  and the  Preferred  Stock  do not and will not
conflict  with or  result  in a breach  by the  Company  of any of the  terms or
provisions  of, or constitute a default under (i) the articles of  incorporation
or by-laws of the  Company,  each as currently  in effect,  (ii) any  indenture,
mortgage,  deed of trust, or other material agreement or instrument to which the
Company is a party or by which it or any of its  properties or assets are bound,
including any listing agreement for the Common Stock except as herein set forth,
(iii) to its knowledge,  any existing applicable law, rule, or regulation or any
applicable  decree,  judgment,  or order of any court,  United States federal or
state regulatory body,  administrative agency, or other governmental body having
jurisdiction  over the Company or any of its  properties or assets,  or (iv) the
Company's listing agreement for its Common Stock,  except such conflict,  breach
or default which would not have a material  adverse  effect on the  transactions
contemplated herein.

           f.  Approvals.  No  authorization,  approval or consent of any court,
governmental body,  regulatory agency,  self-regulatory  organization,  or stock
exchange or market or the Stockholders of the Company is required to be obtained
by the  Company  for the  issuance  and sale of the  Securities  to the Buyer as
contemplated  by this  Agreement,  except  such  authorizations,  approvals  and
consents that have been obtained.

           g. SEC Filings. None of the Company's SEC Documents contained, at the
time they were filed,  any untrue  statement of a material fact or omit to state
any  material  fact  required  to be stated  therein  or  necessary  to make the
statements  made  therein in light of the  circumstances  under  which they were
made, not  misleading.  The Company has since September 1, 1996 timely filed all
requisite forms, reports and exhibits thereto with the SEC.

           h. Absence of Certain Changes.  Since January 1, 1997, there has been
no material adverse change and no material adverse  development in the business,
properties,  operations,  financial  condition,  or results of operations of the
Company, except as disclosed in Annex V or in the Company's SEC Documents.

           i. Full Disclosure. There is no fact known to the Company (other than
general economic conditions known to the public generally or as disclosed in the
Company's SEC  Documents),  that has not been  disclosed in writing to the Buyer
that (i) would  reasonably be expected to have a material  adverse effect on the
business  or  financial  condition  of the Company or (ii) would  reasonably  be
expected  to  materially  and  adversely  affect the  ability of the  Company to
perform its obligations  pursuant to this  Agreement,  the  Registration  Rights
Agreement,  the Joint Escrow  Instructions,  and the  Certificate of Designation
(collectively, the "Transaction Agreements").

           j. Absence of Litigation.  Except as set forth in Annex V hereto, and
in the  Company's  SEC  Documents,  which the Buyer  has  reviewed,  there is no
action,  suit,  proceeding,  inquiry  or  investigation  before or by any court,
public board or body pending or, to the knowledge


                                        6

<PAGE>



of the  Company,  threatened  against  or  affecting  the  Company,  wherein  an
unfavorable decision,  ruling or finding would have a material adverse effect on
the  properties,  business  or  financial  condition  of  the  Company  and  its
subsidiaries  taken as a whole or the  transactions  contemplated  by any of the
Transaction   Agreements  or  which  would  adversely  affect  the  validity  or
enforceability  of, or the  authority  or ability of the  Company to perform its
obligations under, any of the Transaction Agreements.

           k.  Absence  of  Events  of  Default.  Except as set forth in Annex V
hereto and Section 3(e) hereof, no Event of Default (or its equivalent term), as
defined in the  respective  agreement  to which the  Company is a party,  and no
event  which,  with the giving of notice or the  passage of time or both,  would
become an Event of  Default  (or its  equivalent  term) (as so  defined  in such
agreement),  has occurred and is continuing,  which would reasonably be expected
to have a  material  adverse  effect on the  Company's  financial  condition  or
results of operations.

           Prior Issues.  Except as set forth in Annex V, during the twelve (12)
months  preceding  the date hereof,  the Company has not issued any  convertible
securities.  The presently outstanding unconverted principal amount of each such
issuance as at September 30, 1997 are set forth in Annex V.

           4. CERTAIN COVENANTS AND ACKNOWLEDGMENTS.

           a.  Transfer  Restrictions.  The  Buyer  acknowledges  that  (1)  the
Preferred Stock has not been and is not being registered under the provisions of
the 1933 Act and, except as provided in the Registration  Rights Agreement,  the
Shares have not been and are not being  registered  under the 1933 Act,  and may
not be  transferred  unless (A)  subsequently  registered  thereunder or (B) the
Buyer shall have  delivered  to the  Company an opinion of  counsel,  reasonably
satisfactory in form, scope and substance to the Company, to the effect that the
Securities to be sold or transferred  may be sold or transferred  pursuant to an
exemption  from  such  registration;  (2)  any  sale of the  Securities  made in
reliance  on Rule  144  promulgated  under  the  1933  Act  may be made  only in
accordance  with  the  terms  of said  Rule  and  further,  if said  Rule is not
applicable,  any  resale of such  Securities  under  circumstances  in which the
seller,  or the  person  through  whom the sale is made,  may be deemed to be an
underwriter,  as that term is used in the 1933 Act, may require  compliance with
some other  exemption under the 1933 Act or the rules and regulations of the SEC
thereunder;  and (3)  neither  the  Company  nor any  other  person is under any
obligation to register the Securities  (other than pursuant to the  Registration
Rights  Agreement) under the 1933 Act or to comply with the terms and conditions
of any exemption thereunder.

           b.  Restrictive  Legend.  The Buyer  acknowledges and agrees that the
Preferred  Stock,  and, until such time as the Common Stock has been  registered
under the 1933 Act as contemplated by the Registration Rights Agreement and sold
in accordance with an effective Registration  Statement,  certificates and other
instruments representing any of the Securities shall bear


                                        7

<PAGE>


a restrictive  legend in  substantially  the following form (and a stop-transfer
order may be placed against transfer of any such Securities):

           THESE  SECURITIES (THE  "SECURITIES")  HAVE NOT BEEN REGISTERED UNDER
           THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE
           SECURITIES  LAWS OF ANY STATE AND MAY NOT BE SOLD OR OFFERED FOR SALE
           IN  THE  ABSENCE  OF AN  EFFECTIVE  REGISTRATION  STATEMENT  FOR  THE
           SECURITIES OR AN OPINION OF COUNSEL OR OTHER  EVIDENCE  ACCEPTABLE TO
           THE CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED.

           c. Registration  Rights Agreement.  The parties hereto agree to enter
into the  Registration  Rights  Agreement,  in  substantially  the form attached
hereto as Annex IV, on or before the Closing Date (as defined below).

           d. Filings.  The Company  undertakes and agrees to make all necessary
filings in connection  with the sale of the  Preferred  Stock to the Buyer under
any United States laws and regulations,  or by any domestic  securities exchange
or trading  market,  and to provide a copy thereof to the Buyer  promptly  after
such filing.

           e. Reporting  Status.  So long as the Buyer  beneficially owns any of
the Preferred  Stock,  the Company  shall file all reports  required to be filed
with the SEC  pursuant  to Section 13 or 15(d) of the 1934 Act,  and the Company
shall not terminate  its status as an issuer  required to file reports under the
1934 Act even if the 1934 Act or the  rules  and  regulations  thereunder  would
permit such  termination.  The Company will take all action under its control to
continue  the listing and trading of its Common Stock on The NASDAQ Stock Market
and will comply in all respects with the Company's  reporting,  filing and other
obligations under the by-laws or rules of the National Association of Securities
Dealers, Inc. ("NASD") or The NASDAQ Stock Market.

           f. Use of Proceeds.  The Company will use the proceeds  from the sale
of the Preferred Stock (excluding amounts paid by the Company for legal fees and
finder's fees in connection  with the sale of the Preferred  Stock) for internal
working  capital  purposes,  and shall not,  directly  or  indirectly,  use such
proceeds for any loan to or  investment  in any other  corporation,  partnership
enterprise or other person.

           g. Future Purchases.  (i) The Buyer  unconditionally  and irrevocably
agrees, at the option of the Company, to purchase the Additional Preferred Stock
consisting of an additional $640,000 liquidation amount of Convertible Preferred
Stock in one tranche (the "Additional Tranche"), on the terms and subject to the
conditions hereinafter provided.

                                        8

<PAGE>



           (ii) The closing  for the  Additional  Tranche  shall occur on a date
(the "Additional Closing Date"), which date shall not be later than the ten (10)
days after the Effective Date (as defined below) or as otherwise mutually agreed
upon by the Company and the Buyer.  The closing of the Additional  Tranche shall
be  conducted  upon the same terms and  conditions  as those  applicable  to the
Initial Preferred Stock.

           (iii) The Buyer's  obligations to purchase the  Additional  Preferred
Stock is subject to the condition that, on the Additional  Closing Date, (A) the
Registration  Statement  required  to be filed  under  the  Registration  Rights
Agreement  shall  continue  to be  effective,  and (B) the  representations  and
warranties  of the  Company  contained  in  Section  3 hereof  shall be true and
correct  in all  material  respects  on the  Additional  Closing  Date  (and the
Company's  issuance  of the  Additional  Preferred  Stock shall  constitute  the
Company's making each such representation and warranty as of such date).

           (iv) The  Additional  Preferred  Stock shall be governed by the terms
and provisions of the Certificate of Designation as if such Additional Preferred
Stock was issued on the date the Initial Preferred Stock was issued.

           h. Certain  Agreements.  (i) The Company covenants and agrees that it
will not,  without  the prior  written  consent  of the  Buyer,  enter  into any
subsequent or further  offer or sale of Common Stock or  securities  convertible
into  Common  Stock  with any third  party  ("Subsequent  Financing")  until the
earlier of (a) the date which is forty-five  (45) days after the Effective  Date
(as defined  below) or (b) the date on which 85% of the  Preferred  Stock shares
have been converted into shares of Common Stock.  Notwithstanding the foregoing,
the  Company may enter into a  Subsequent  Financing  without the prior  written
consent of the Buyer if such  Subsequent  Financing  is exempt  from  securities
registration  under Regulation D and the Company is not required to register the
underlying  securities  within the later of one hundred twenty (120) days of the
Effective  Date (as defined  below),  or one hundred  eighty (180) days from the
Closing Date.

           (ii)  Subject  to  the  conditions  of  subparagraph   (h)(iii),  the
provisions  of  subparagraph  (h)(i)  will  not  apply  to (x) the  issuance  of
securities  (other than for cash) in  connection  with a merger,  consolidation,
sale of assets, disposition or (y) the exchange of the capital stock for assets,
stock or other joint venture interests.

           (iii) Any action  contemplated under subparagraph  (h)(ii) is subject
to the condition  that  registration  rights,  if any, in  connection  with such
action  shall not require the filing of a  Registration  Statement in respect of
such stock prior to thirty (30) days after the Effective Date.

           (iv)  The term  "Effective  Date"  means  the  effective  date of the
Registration  Statement  covering the Registrable  Securities (as defined in the
Registration Rights Agreement).


                                        9

<PAGE>



           i. Available  Shares.  The Company shall have at all times authorized
and reserved for issuance,  free from preemptive rights,  shares of Common Stock
sufficient to yield the number of shares of Common Stock  issuable at conversion
as may be required to satisfy the conversion rights of the Buyer pursuant to the
terms and conditions of the Preferred Stock.

           j.  Dilution.  The  Company  acknowledges  that the  number of Shares
issuable upon  conversion of the Preferred Stock may increase  substantially  in
certain circumstances,  including, but not limited to, when the trading price of
the Common Stock  declines  prior to a  conversion  and that the issuance of the
Shares upon such a conversion of the Preferred  Stock may have a dilutive effect
of the ownership interest of the other shareholders of the Company.

           k. Registered Offering.  Notwithstanding anything in the foregoing to
the contrary,  the Company shall be permitted,  upon prior written notice to the
Buyer,  to issue and sell its Common Stock or securities,  convertible  into its
Common Stock in a registered  offering (the  "Registered  Offering"),  provided,
that the proceeds of such Registered  Offering shall be applied solely to redeem
the  Preferred  Stock  in  accordance  with  the  terms  of the  Certificate  of
Designation.

           l. Other Buyers.  The Company shall be permitted to issue and sell up
to three hundred sixty (360) additional  shares of Preferred Stock to affiliates
of the  Company or to persons  who do not  beneficially  own more than five (5%)
percent of the outstanding shares of Common Stock.

           5. TRANSFER AGENT INSTRUCTIONS.

           a.  Promptly  following  the  delivery by the Buyer of the  aggregate
purchase price for the Initial  Preferred  Stock in accordance with Section 1(c)
hereof, the Company will irrevocably instruct its transfer agent to issue Common
Stock from time to time upon  conversion of the Preferred  Stock in such amounts
as specified from time to time by the Company to the transfer agent, bearing the
restrictive  legend  specified  in  Section  4(b) of  this  Agreement  prior  to
registration  of the Shares  under the 1933 Act,  registered  in the name of the
Buyer or its nominee and in such  denominations  to be specified by the Buyer in
connection with each  conversion of the Preferred  Stock.  The Company  warrants
that no instruction other than such  instructions  referred to in this Section 5
and stop  transfer  instructions  to give effect to Section 4(a) hereof prior to
registration  and  sale of the  Shares  under  the 1933 Act will be given by the
Company to the  transfer  agent and that the Shares  shall  otherwise  be freely
transferable  on the books  and  records  of the  Company  as and to the  extent
provided in this Agreement,  the Registration  Rights Agreement,  and applicable
law. Nothing in this Section shall affect in any way the Buyer's obligations and
agreement  to comply  with all  applicable  securities  laws upon  resale of the
Securities.  If the Buyer  provides  the  Company  with an  opinion  of  counsel
reasonably  satisfactory  to the Company  that  registration  of a resale by the
Buyer of any of the Securities in accordance  with clause (1)(B) of Section 4(a)
of this Agreement is not required


                                       10

<PAGE>



under the 1933 Act,  the  Company  shall  (except as  provided  in clause (2) of
Section 4(a) of this  Agreement)  permit the transfer of the Securities  and, in
the case of the Shares,  promptly instruct the Company's transfer agent to issue
one or more  certificates  for Common Stock  without  legend in such name and in
such denominations as specified by the Buyer.

           b. The Company will permit the Buyer to exercise its right to convert
the  Preferred  Stock  by  telecopying  an  executed  and  completed  Notice  of
Conversion  to the  Company  and  delivering  within  three  (3)  business  days
thereafter,  the original Notice of Conversion and the certificates representing
the Preferred  Stock being converted to the Company by express  courier,  with a
copy to the  transfer  agent.  Each  date on which a  Notice  of  Conversion  is
telecopied  to and  received by the Company in  accordance  with the  provisions
hereof  shall be  deemed a  Conversion  Date.  The  Company  will  transmit  the
certificates  representing  the Converted Shares issuable upon conversion of any
Preferred Stock (together with certificates representing the Preferred Stock not
being so converted) to the Buyer via express courier,  by electronic transfer or
otherwise,  within three (3) business  days after  receipt by the Company of the
original  Notice of Conversion and the  certificate  representing  the Preferred
Stock being converted (the "Delivery Date").

           c. The Company understands that a delay in the issuance of the Shares
of Common Stock beyond the  Delivery  Date could result in economic  loss to the
Buyer.  As  compensation  to the Buyer for such loss,  the Company agrees to pay
late  payments  to the Buyer for late  issuance  of Shares  upon  Conversion  in
accordance  with the  following  schedule  (where  "No.  Business  Days Late" is
defined  as the number of  business  days  beyond  five (5)  business  days from
Delivery Date);  provided,  however,  the Company shall not be obligated to make
any payment under this Section if the cause of such delay in the issuance of the
Shares of Common  Stock is not caused by the Company or is the result of an act,
omission or circumstance beyond the control of the Company.

                                        Late Payment For Each
                                        $10,000 of Initial Preferred Stock
    No. Business Days Late              Principal Amount Being Converted

               1                                  $100
               2                                  $200
               3                                  $300
               4                                  $400
               5                                  $500
               6                                  $600
               7                                  $700
               8                                  $800
               9                                  $900
               10                                 $1,000
               >10                                $1,000 +$200 for each Business
                                                  Day Late beyond 10 days


                                       11

<PAGE>



The Company shall pay any payments  incurred  under this Section in  immediately
available  funds upon demand.  Nothing  herein shall limit the Buyer's  right to
pursue actual damages for the Company's  failure to issue and deliver the Common
Stock to the Buyer. Furthermore,  in addition to any other remedies which may be
available  to the Buyer,  in the event that the Company  fails for any reason to
effect  delivery of such shares of Common Stock  within five (5)  business  days
after the  Delivery  Date,  the Buyer will be  entitled  to revoke the  relevant
Notice  of  Conversion  by  delivering  a notice to such  effect to the  Company
whereupon  the Company and the Buyer shall each be restored to their  respective
positions immediately prior to delivery of such Notice of Conversion.

           d. In lieu  of  delivering  physical  certificates  representing  the
Common Stock issuable upon conversion,  provided the Company's transfer agent is
participating in the Depository Trust Company ("DTC") Fast Automated  Securities
Transfer  program,  upon  request  of the  Buyer  and its  compliance  with  the
provisions contained in this paragraph,  so long as the certificates therefor do
not  bear a legend  and the  Buyer  thereof  is not  obligated  to  return  such
certificate  for the  placement of a legend  thereon,  the Company shall use its
best efforts to cause its transfer agent to  electronically  transmit the Common
Stock issuable upon  conversion to the Buyer by crediting the account of Buyer's
Prime Broker with DTC through its Deposit Withdrawal Agent Commission system.

           6. DELIVERY INSTRUCTIONS.

           The Initial Preferred Stock or the Additional Preferred Stock, as the
case may be, shall be  delivered by the Company to the Escrow Agent  pursuant to
Section 1(b) hereof,  on a delivery  against  payment basis, on the Closing Date
and on the Additional Closing Date, respectively..

           7. CLOSING DATE.

           The date and time of the issuance  and sale of the Initial  Preferred
Stock (the "Closing Date") shall occur no later than 1:00 P.M., New York time on
the  first  NYSE  trading  day after the  fulfillment  or waiver of all  closing
conditions  pursuant to Sections 8 and 9, or such other mutually agreed to time.
The date of the  Additional  Closing Date shall be the date  specified by either
party upon at least five (5) business  days' advance  notice to the other party;
provided,  however,  that it shall be a condition of the Additional Closing Date
that (i) the  conditions  of  Section  4(g) be  satisfied,  and (ii) each of the
conditions  contemplated by Sections 8 and 9 hereof shall have been satisfied or
waived on or before  such date.  Each  closing  shall  occur on such date at the
offices of the Escrow Agent.  Notwithstanding anything to the contrary contained
herein,  the Escrow Agent will be authorized to release the Escrow Property only
upon satisfaction of the conditions set forth in Sections 8 and 9 hereof.

           8. CONDITIONS TO THE COMPANY'S OBLIGATION TO SELL.


                                       12

<PAGE>



           The  Buyer  understands  that the  Company's  obligation  to sell the
Initial  Preferred Stock on the Closing Date and the Additional  Preferred Stock
on the Additional Closing Date is conditioned upon:

           a. The receipt and  acceptance by the Buyer of this  Agreement (to be
evidenced by the Buyer's  execution and delivery of this Agreement) for the sale
of the Preferred Stock;

           b. Delivery by the Buyer to the Escrow Agent of good funds as payment
in full of an  amount  equal to the  relevant  purchase  price  for the  Initial
Preferred  Stock or the  Additional  Preferred  Stock,  as the  case may be,  in
accordance with Section 1(c) hereof;

           c. The accuracy on the Closing Date or the  Additional  Closing Date,
as the case may be, of the representations and warranties of the Buyer contained
in this  Agreement,  each as if made on such date,  and the  performance  by the
Buyer on or  before  such  date of all  covenants  and  agreements  of the Buyer
required to be performed on or before such date;

           d.  There  shall  not  be in  effect  any  law,  rule  or  regulation
prohibiting or restricting the transactions  contemplated  hereby,  or requiring
any consent or approval which shall not have been obtained.

           9. CONDITIONS TO THE BUYER'S OBLIGATION TO PURCHASE.

           The Company  understands that the Buyer's  obligation to purchase the
Initial  Preferred Stock on the Closing Date and the Additional  Preferred Stock
on the Additional Closing Date is conditioned upon:

           a. The receipt and acceptance by the Company of this Agreement  (such
acceptance  to be  evidenced  by the  Company's  execution  and delivery of this
Agreement) for the sale of at least Three Million Dollars ($3,000,000.00) on the
Closing  Date,  and Six Hundred  Forty  Thousand  Dollars  ($640,000.00)  on the
Additional  Closing Date in liquidation value of Preferred Stock (or such lesser
amount as the Company, in its sole discretion, shall determine);

           b.  Delivery  by the  Company  to the  Escrow  Agent  of the  Initial
Preferred  Stock or the  Additional  Preferred  Stock,  as the  case may be,  in
accordance with this Agreement;

           c. The accuracy in all  material  respects on the Closing Date or the
Additional  Closing  Date,  as the  case  may  be,  of the  representations  and
warranties of the Company  contained in this Agreement,  each as if made on such
date, and the performance by the Company on or before such date of all covenants
and  agreements of the Company  required to be performed on or before such date;
and



                                       13

<PAGE>



           d. On the Closing Date or the  Additional  Closing  Date, as the case
may be, the Buyer shall have received (i) an opinion of counsel for the Company,
dated such date, in form,  scope and substance  reasonably  satisfactory  to the
Buyer,  to the  effect  set forth in Annex  III  attached  hereto,  and (ii) the
Registration Rights Agreement duly executed and delivered by the Company.

           10. GOVERNING LAW: MISCELLANEOUS.

           a. This Agreement  shall be governed by and interpreted in accordance
with the laws of the State of New York without  giving effect to the  principles
thereof  regarding  the  conflict of laws.  Each of the parties  consents to the
jurisdiction  of the federal  courts whose  districts  encompass any part of the
City of New York or the state  courts of the  State of New York  sitting  in the
City of New York in connection with any dispute arising under this Agreement and
hereby waives, to the maximum extent permitted by law, any objection,  including
any  objection  based on  forum  non  conveniens,  to the  bringing  of any such
proceeding in such jurisdictions.

           b. A facsimile  transmission of this signed  Agreement shall be legal
and binding on all parties hereto.

           c. This Agreement may be signed in one or more counterparts,  each of
which shall be deemed an original.

           d. The headings of this  Agreement are for  convenience  of reference
and shall not form part of, or affect the interpretation of, this Agreement.

           e.  If  any  provision  of  this   Agreement   shall  be  invalid  or
unenforceable in any jurisdiction, such invalidity or unenforceability shall not
affect the validity or  enforceability of the remainder of this Agreement or the
validity or enforceability of this Agreement in any other jurisdiction.  

           f. This  Agreement  may be amended only by an  instrument  in writing
signed by the party to be charged with enforcement thereof.

           g. This Agreement  supersedes all prior agreements and understandings
among the parties hereto with respect to the subject matter hereof.

           11.  NOTICES.  Any notice  required or permitted  hereunder  shall be
given in  writing  (unless  otherwise  specified  herein)  and  shall be  deemed
effectively given on the earliest of

           (i) the date delivered,  if delivered by personal delivery as against
           written receipt therefor or by confirmed facsimile  transmission,  if
           received during normal business hours,


                                       14

<PAGE>



           (ii) the seventh business day after deposit,  postage prepaid, in the
           United States Postal Service by registered or certified mail, or

           (iii) the third business day after mailing by  international  express
           courier, with delivery costs and fees prepaid,

in each case,  addressed to each of the other parties thereunto  entitled at the
following  addresses (or at such other  addresses as such party may designate by
ten (10)  days'  advance  written  notice  similarly  given to each of the other
parties hereto):

COMPANY:                       XYBERNAUT CORPORATION
                               12701 Fair Lakes Circle
                               Suite 550
                               Fairfax, Virginia 22033
                               ATTN: Steven A. Newman
                               Telecopier No.: (703) 631-6734
                               Telephone No.: (703) 631-6925

                               with a copy to:

                               Parker Chapin Flattau & Klimpl, LLP
                               1211 Avenue of the Americas
                               New York, New York 10036
                               Attention: Martin Eric Weisberg, Esq.
                               Telecopier No.:  (212) 704-6288

BUYER:                         At the address set forth on the signature page of
                               this Agreement.

ESCROW AGENT:                  Krieger & Prager, Esqs.
                               319 Fifth Avenue
                               New York, New York 10016
                               Telecopier No. (212) 213-2077

           12.  SURVIVAL  OF  REPRESENTATIONS  AND  WARRANTIES.   The  Company's
representations  and warranties  herein shall survive the execution and delivery
of this  Agreement  and the  delivery of the  Preferred  Stock and the  Purchase
Price,  and shall  inure to the  benefit  of the Buyer  and its  successors  and
assigns.

           [BALANCE OF PAGE INTENTIONALLY LEFT BLANK.]
           IN WITNESS  WHEREOF,  this  Agreement  has been duly  executed by the
Buyer or one of its officers  thereunto duly authorized as of the date set forth
below.

NUMBER OF SHARES OF
INITIAL PREFERRED STOCK TO BE PURCHASED:                                  3,000


                                       15

<PAGE>



AGGREGATE PURCHASE PRICE OF
SUCH INITIAL PREFERRED STOCK:                                        $3,000,000

NUMBER OF SHARES OF ADDITIONAL
PREFERRED STOCK TO BE PURCHASED:                                            640

AGGREGATE PURCHASE PRICE OF SUCH
ADDITIONAL PREFERRED STOCK:                                            $640,000


                             SIGNATURES FOR ENTITIES

           IN WITNESS  WHEREOF,  the  undersigned  represents that the foregoing
statements are true and correct and that it has caused this Securities  Purchase
Agreement   to  be  duly   executed   on  its  behalf  this   ________   day  of
___________________, 1997.


- --------------------------------            -----------------------------------
Address                                      Printed Name of Subscriber

- --------------------------------
                                             By: ------------------------------
Telecopier No. ------------------             (Signature of Authorized Person)

- --------------------------------             ----------------------------------
Jurisdiction of Incorporation                  Printed Name and Title
or Organization

As of the date set forth below,  the undersigned  hereby accepts this Agreement
and  represents  that the foregoing  statements are true and correct and that it
has caused this Securities Purchase Agreement to be duly executed on its behalf.

XYBERNAUT CORPORATION

By:
   ---------------------------
Title:
       -----------------------
Date:
       -----------------------

<PAGE>




           ANNEX I           CERTIFICATE OF AMENDMENT TO THE CERTIFICATE OF
                             INCORPORATION/CERTIFICATE OF DESIGNATIONS

           ANNEX II          JOINT ESCROW INSTRUCTIONS

           ANNEX III         OPINION OF COUNSEL

           ANNEX IV          REGISTRATION RIGHTS AGREEMENT

           ANNEX V           COMPANY DISCLOSURE MATERIALS



<PAGE>


                                                                       ANNEX V

                               COMPANY DISCLOSURE
                               ------------------






                                [TO BE SUPPLIED]




                                    Annex IV
                                       to
                               Securities Purchase
                                    Agreement


               AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT

        THIS AMENDED AND RESTATED  REGISTRATION  RIGHTS  AGREEMENT,  dated as of
November  12,  1997  (this  "Agreement"),  is  made  by  and  between  XYBERNAUT
CORPORATION, a Delaware corporation (the "Company"), and the entity named on the
signature page hereto (the "Initial Investor").

                              W I T N E S S E T H:

        WHEREAS,  the  Company  and the  Initial  Investor  desire  to amend and
restate that certain  Registration  Rights  Agreement to which they are parties;
and

        WHEREAS, upon the terms and subject to the conditions of the Amended and
Restated Securities  Purchase Agreement,  dated as of November 12, 1997, between
the Initial Investor and the Company (the "Securities Purchase Agreement"),  the
Company has agreed to issue and sell to the Initial  Investor up to 3,640 shares
(the "Preferred  Shares") of 4% Series B Convertible  Preferred Stock, par value
$.01 per share,  of the Company,  at an aggregate  purchase price of $3,640,000,
which  Preferred  Stock  (as that term is  defined  in the  Securities  Purchase
Agreement) is convertible  into shares of the Common Stock,  $.01 par value,  of
the  Company  (the  "Conversion  Shares")  upon the  terms  and  subject  to the
conditions of the  Certificate  of  Designations  (as defined in the  Securities
Purchase Agreement);

        WHEREAS,  to induce the  Initial  Investor  to execute  and  deliver the
Securities  Purchase  Agreement,  the  Company  has  agreed to  provide  certain
registration rights under the Securities Act of 1933, as amended,  and the rules
and regulations thereunder, or any similar successor statute (collectively,  the
"Securities Act"), with respect to the Conversion Shares;

        NOW,  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
covenants  contained  herein  and other  good and  valuable  consideration,  the
receipt and  sufficiency of which are hereby  acknowledged,  the Company and the
Initial Investor hereby agree as follows:


1.         Definitions.

        (a) As used in this  Agreement,  the  following  terms  shall  have  the
following meanings:

        (i) "Investor" means the Initial  Investor and any permitted  transferee
or


                                        1

<PAGE>



assignee  who agrees to become  bound by the  provisions  of this  Agreement  in
accordance with Section 9 hereof.

        (ii)  "Potential  Material  Event" means any of the  following:  (a) the
possession by the Company of material  information  not ripe for disclosure in a
registration statement, which shall be evidenced by determinations in good faith
by the Board of Directors of the Company that disclosure of such  information in
the  registration  statement would be detrimental to the business and affairs of
the Company;  or (b) any material  engagement  or activity by the Company  which
would, in the good faith determination of the Board of Directors of the Company,
be adversely  affected by disclosure in a  registration  statement at such time,
which  determination  shall be accompanied by a good faith  determination by the
Board of  Directors  of the Company  that the  registration  statement  would be
materially misleading absent the inclusion of such information.

        (iii)   "Register,"   "Registered,"  and   "Registration"   refer  to  a
registration  effected  by  preparing  and filing a  Registration  Statement  or
Statements in compliance  with the Securities Act and pursuant to Rule 415 under
the Securities Act or any successor rule providing for offering  securities on a
continuous  basis ("Rule 415"), and the declaration or ordering of effectiveness
of such  Registration  Statement by the United  States  Securities  and Exchange
Commission (the "SEC").

        (iv) "Registrable Securities" means the Conversion Shares.

        (v)  "Registration  Statement"  means a  registration  statement  of the
Company under the Securities Act.

        (b) Capitalized terms used herein and not otherwise defined herein shall
have the respective meanings set forth in the Securities Purchase Agreement.

        2. Registration.

        (a) Mandatory Registration.  The Company shall prepare and file with the
SEC, as soon as possible  after the Closing  Date (as defined in the  Securities
Purchase  Agreement) but in no later than thirty (30) days following the Closing
Date, either a Registration  Statement on Form S-3 registering for resale by the
Investor a sufficient number of shares of Common Stock (or such lesser number as
may be required by the SEC,  but in no event less than the number of shares into
which the Preferred Stock would be convertible at the time of filing of the Form
S-3 (assuming for such purposes  that the  Additional  Preferred  Stock had been
issued at such date and all  Preferred  Stock was then eligible to be converted,
and had been converted,  into Conversion  Shares in accordance with the terms of
the Certificate of  Designations,  whether or not such issuance,  eligibility or
conversion  had in fact occurred as of such date) or an amendment to any pending
Company Registration  Statement on Form S-3, and such Registration  Statement or
amended Registration Statement shall state that, in accordance with Rule 416 and
457 under the  Securities  Act,  it also  covers  such  indeterminate  number of
additional  shares of Common Stock as may become issuable upon conversion of the
Preferred Stock resulting from adjustment in the


                                        2

<PAGE>


Conversion  Price, or to prevent dilution  resulting from stock splits, or stock
dividends),  which  Registration  Statement shall be declared effective no later
than  ninety  (90) days  after the  Closing  Date.  If at any time the number of
shares of Common Stock into which the Preferred  Stock may be converted  exceeds
the  aggregate  number of shares of Common  Stock then  registered,  the Company
shall,  within ten (10) business days after receipt of a written notice from any
Investor,  either  (i) amend the  Registration  Statement  filed by the  Company
pursuant to the preceding sentence, if such Registration  Statement has not been
declared  effective  by the SEC at that time,  to register  all shares of Common
Stock  into  which  the  Preferred  Stock  may be  converted,  or  (ii)  if such
Registration Statement has been declared effective by the SEC at that time, file
with the SEC an  additional  Registration  Statement on Form S-3 to register the
shares of Common  Stock into which the  Preferred  Stock may be  converted  that
exceed the aggregate number of shares of Common Stock already registered.

        (b) Payments by the Company.

        (i) If the Registration Statement covering the Registrable Securities is
not filed in proper form with the SEC within  thirty (30) days after the Closing
Date (the "Required Filing Date"),  the Company will make payment to the Initial
Investor in such  amounts and at such times as shall be  determined  pursuant to
this Section 2(b).

        (ii) If the Registration  Statement covering the Registrable  Securities
is not effective (a) within the earlier of (1) fifteen (15) days after notice by
the SEC that it may be declared  effective or (2) ninety (90) days following the
Closing Date (the "Required  Effective  Date"), or (b) after a Suspension Period
(as defined below),  then the Company will make payments to the Initial Investor
in such  amounts  and at such  times  as shall be  determined  pursuant  to this
Section 2(b).

        (iii)  Subject to Section  2(b)(vi)  below,  the amount  (the  "Periodic
Amount") to be paid by the Company to the Initial  Investor  shall be determined
as of each Computation Date (as defined below) and such amount shall be equal to
(A) two percent (2%) of the  purchase  price paid by the Initial  Investor  (the
"Purchase  Price") for all  Preferred  Shares  then  purchased  and  outstanding
pursuant  to the  Securities  Purchase  Agreement  for the period  from the date
following the Required  Filing Date or the Required  Effective Date, as the case
may be, to the first  relevant  Computation  Date, and (B) three percent (3%) to
each Computation  Date thereafter.  By way of illustration and not in limitation
of the  foregoing,  if the  Registration  Statement  is timely  filed but is not
declared  effective  until one hundred  sixty-five  (165) days after the Closing
Date,  the Periodic  Amount will  aggregate  eight  percent (8%) of the purchase
price of the  Preferred  Shares (2% for days 91-120,  plus 3% for days  121-150,
plus 3% for days 151-165).

        (iv) Each  Periodic  Amount  will be payable  by the  Company in cash or
other immediately available funds to the Investor upon demand of the Investor.

        (v) The parties  acknowledge  that the damages  which may be incurred by
the Investor if the  Registration  Statement is not filed by the Required Filing
Date or if the  Registration  Statement has not been  declared  effective by the
Required Registration Date may be difficult to ascertain. The parties agree that
the Periodic Amount represent a reasonable  estimate on the part of the parties,
as of the  date  of  this  Agreement,  of  the  amount  of  such  damages.  (vi)
Notwithstanding  the foregoing,  the amounts payable by the Company  pursuant to
this provision shall not be payable to the extent any delay in the effectiveness
of the  Registration  Statement occurs because of an act of, or a failure to act
or to act timely by the Initial Investor or its counsel, or as a result of force
majeure, or in the event all of the Registrable  Securities may be sold pursuant
to Rule 144 or another available exemption under the Act.

        (vii)  "Computation Date" means (i) the date which is the earlier of (A)
thirty (30) days after the Required Filing Date and the Required Effective Date,
as the case may be,  or (B) the  date  after  the  Required  Filing  Date or the
Required  Registration  Date on which the Registration  Statement is filed (with
respect to payments due as  contemplated  by Section 2(b)(i) hereof) or declared
effective  (with  respect to payments due as  contemplated  by Section  2(b)(ii)
hereof) or after any Permitted  Suspension  Period, as the case may be, and (ii)
each date  which is the  earlier  of (A)  thirty  (30) days  after the  previous
Computation  Date or (B) the date after the previous  Computation  Date on which
the   Registration   Statement  is  filed  (with  respect  to  payments  due  as
contemplated by Section  2(b)(i) hereof) or declared  effective (with respect to
payments due as contemplated by Section 2(b)(ii) hereof), as the case may be.

        3.  Obligations of the Company.  In connection with the  registration of
the Registrable Securities, the Company shall do each of the following.

        (a)  Prepare  promptly,  and file with the SEC by thirty (30) days after
the Closing  Date, a  Registration  Statement  with respect to not less than the
number of Registrable  Securities provided in Section 2(a) above, and thereafter
use its reasonable best efforts to cause each Registration Statement relating to
Registrable  Securities to become effective the earlier of (a) fifteen (15) days
after  notice by the SEC that it may be declared  effective,  or (b) ninety (90)
days after the Closing Date, and keep the  Registration  Statement  effective at
all times until the earliest (the "Registration Period") of (i) the date that is
two years after the Closing Date,  (ii) the date when the Investors may sell all
Registrable  Securities under Rule 144 or (iii) the date the Investors no longer
own any of the Registrable  Securities,  which Registration Statement (including
any amendments or supplements thereto and prospectuses  contained therein) shall
not contain any untrue  statement of a material fact or omit to state a material
fact required to be stated therein or necessary to make the statements  therein,
in light of the circumstances in which they were made, not misleading;

        (b)   Prepare  and  file  with  the  SEC  such   amendments   (including
post-effective amendments) and supplements to the Registration Statement and the
prospectus  used  in  connection  with  the  Registration  Statement  as  may be
necessary  to  keep  the   Registration   effective  at  all  times  during  the
Registration  Period,  and,  during the  Registration  Period,  comply  with the
provisions  of  the  Securities  Act  with  respect  to the  disposition  of all
Registrable  Securities  of the Company  covered by the  Registration  Statement
until such time as all of such  Registrable  Securities have been disposed of in
accordance  with the intended  methods of  disposition  by the seller or sellers
thereof as set forth in the Registration Statement;

        (c) The Company shall permit a single firm of counsel  designated by the
Initial  Investors to review the  Registration  Statement and all amendments and
supplements  thereto a  reasonable  period of time (but not less than  three (3)
business  days) prior to their filing with the SEC, and not file any document in
a form to which such counsel reasonably objects.

        (d) Furnish to each Investor whose  Registrable  Securities are included
in the Registration  Statement and its legal counsel  identified to the Company,
(i) promptly after the same is prepared and publicly distributed, filed with the
SEC, or received by the  Company,  one (1) copy of the  Registration  Statement,
each  preliminary  prospectus and  prospectus,  and each amendment or supplement
thereto, and (ii) such number of copies of a prospectus,  and all amendments and
supplements  thereto and such other  documents,  as such Investor may reasonably
request in order to facilitate  the  disposition of the  Registrable  Securities
owned by such Investor;

        (e) As  promptly  as  practicable  after  becoming  aware of such event,
notify  each  Investor  of the  happening  of any event of which the Company has
knowledge,  as a result of which the  prospectus  included  in the  Registration
Statement, as then in effect, includes an untrue statement of a material fact or
omits to state a material  fact  required to be stated  therein or  necessary to
make the statements therein, in light of the circumstances under which they were
made, not misleading,  and use its best efforts promptly to prepare a supplement
or amendment to the Registration  Statement or other appropriate filing with the
SEC to correct such untrue statement or omission, and deliver a number of copies
of such supplement or amendment to each Investor as such Investor may reasonably
request;

        (f) As  promptly  as  practicable  after  becoming  aware of such event,
notify each  Investor who holds  Registrable  Securities  being sold (or, in the
event of an underwritten offering, the managing underwriters) of the issuance by
the SEC of a Notice of  Effectiveness or any notice of effectiveness or any stop
order or other suspension of the effectiveness of the Registration  Statement at
the earliest possible time;

        (g) Notwithstanding  the foregoing,  if at any time or from time to time
after the date of  effectiveness  of the  Registration  Statement,  the  Company
notifies  the  Investors  in writing of the  existence  of a Potential  Material
Event,  the Investors  shall not offer or sell any  Registrable  Securities,  or
engage  in any  other  transaction  involving  or  relating  to the  Registrable
Securities,  from the time of the giving of notice  with  respect to a Potential
Material Event until such Investor receives written notice from the Company that
such  Potential  Material  Event  either has been  disclosed to the public or no
longer  constitutes a Potential  Material  Event;  provided,  however,  that the
Company may not so suspend the right to such holders of  Registrable  Securities
for more than two twenty (20) day periods in the  aggregate  during any 12-month
period  ("Suspension  Period")  with at least a ten (10)  business  day interval
between such periods,  during the periods the Registration Statement is required
to be in effect;


        (h)  Use  its  reasonable  efforts  to  secure  designation  of all  the
Registrable  Securities  covered  by the  Registration  Statement  on the "Small
Capitalization  Market"  of  the  National  Association  of  Securities  Dealers
Automated Quotations System ("NASDAQ") within the meaning of Rule 11Aa2-1 of the
SEC under the Securities  Exchange Act of 1934, as amended (the "Exchange Act"),
and the quotation of the Registrable  Securities on The NASDAQ SmallCap  Market;
or if, despite the Company's reasonable efforts to satisfy the preceding clause,
the Company is  unsuccessful  in doing so, to secure  NASDAQ/OTC  Bulletin Board
authorization  and  quotation  for  such  Registrable  Securities  and,  without
limiting the  generality  of the  foregoing,  to arrange for at least two market
makers to register with the National  Association  of Securities  Dealers,  Inc.
("NASD") as such with respect to such Registrable Securities;

        (i)  Provide  a  transfer  agent  and  registrar,  which may be a single
entity, for the Registrable  Securities not later than the effective date of the
Registration Statement;

        (j) Cooperate with the Investors who hold  Registrable  Securities being
offered to facilitate the timely  preparation and delivery of  certificates  for
the Registrable  Securities to be offered pursuant to the Registration Statement
and  enable  such  certificates  for the  Registrable  Securities  to be in such
denominations  or amounts as the case may be, as the  Investors  may  reasonably
request,  and,  within three (3) business  days after a  Registration  Statement
which  includes  Registrable  Securities  is ordered  effective  by the SEC, the
Company shall deliver,  and shall cause legal counsel selected by the Company to
deliver,  to the transfer agent for the Registrable  Securities  (with copies to
the Investors  whose  Registrable  Securities are included in such  Registration
Statement) an appropriate instruction and opinion of such counsel; and

        (k)  Take  all  other  reasonable  actions  necessary  to  expedite  and
facilitate disposition by the Investor of the Registrable Securities pursuant to
the Registration Statement.

        4. Obligations of the Investors.  In connection with the registration of
the Registrable Securities, the Investors shall have the following obligations:

        (a) It shall be a condition  precedent to the obligations of the Company
to complete  the  registration  pursuant to this  Agreement  with respect to the
Registrable Securities of a particular Investor that such Investor shall furnish
to the Company such information  regarding  itself,  the Registrable  Securities
held by it, and the intended method of disposition of the Registrable Securities
held by it, as shall be reasonably  required to effect the  registration of such
Registrable  Securities and shall execute such documents in connection with such
registration as the Company may reasonably request. At least five (5) days prior
to the first anticipated filing date of the Registration Statement,  the Company
shall notify each  Investor of the  information  the Company  requires from each
such Investor (the "Requested  Information") if such Investor elects to have any
of  such  Investor's   Registrable   Securities  included  in  the  Registration
Statement.  If at least  two (2)  business  days  prior to the  filing  date the
Company  has  not  received  the  Requested  Information  from  an  Investor  (a
"Non-Responsive Investor"), then the Company may file the Registration Statement
without including Registrable Securities of such Non-Responsive Investor;

        (b) Each  Investor,  by such  Investor's  acceptance of the  Registrable
Securities,  agrees to cooperate with the Company as reasonably requested by the
Company  in  connection  with the  preparation  and  filing of the  Registration
Statement hereunder, unless such Investor has notified the Company in writing of
such  Investor's  election  to  exclude  all  of  such  Investor's   Registrable
Securities from the Registration Statement; and

        (c) Each  Investor  agrees  that,  upon  receipt of any notice  from the
Company of the  happening of any event of the kind  described in Section 3(e) or
3(f),  above,  such  Investor  will  immediately   discontinue   disposition  of
Registrable  Securities  pursuant to the  Registration  Statement  covering such
Registrable  Securities  until  such  Investor's  receipt  of the  copies of the
supplemented or amended prospectus  contemplated by Section 3(e) or 3(f) and, if
so directed by the Company,  such Investor  shall deliver to the Company (at the
expense of the Company) or destroy (and deliver to the Company a certificate  of
destruction)  all  copies  in  such  Investor's  possession,  of the  prospectus
covering  such  Registrable  Securities  current  at the time of receipt of such
notice.

        5.  Expenses  of  Registration.  All  reasonable  expenses,  other  than
underwriting   discounts   and   commissions   incurred   in   connection   with
registrations,  filings or qualifications  pursuant to Section 3, but including,
without limitation, all registration, listing, and qualifications fees, printers
and  accounting  fees,  the fees and  disbursements  of counsel for the Company,
shall be borne by the Company.

        6. Indemnification. In the event any Registrable Securities are included
in a Registration Statement under this Agreement:

        (a) To the extent permitted by law, the Company will indemnify and hold
harmless each Investor who holds such Registrable Securities,  the directors, if
any, of such Investor,  the officers, if any, of such Investor,  each person, if
any, who controls any Investor  within the meaning of the  Securities Act or the
Exchange Act (each, an "Indemnified Person" or "Indemnified Party"), against any
losses,  claims,  damages,  liabilities or expenses (joint or several)  incurred
(collectively,  "Claims")  to which  any of them may  become  subject  under the
Securities  Act,  the  Exchange  Act or  otherwise,  insofar as such  Claims (or
actions or proceedings,  whether  commenced or threatened,  in respect  thereof)
arise out of or are based upon any of the  following  statements,  omissions  or
violations  in  the  Registration  Statement,  or any  post-effective  amendment
thereof, or any prospectus included therein: (i) any untrue statement or alleged
untrue statement of a material fact contained in the  Registration  Statement or
any  post-effective  amendment  thereof or the  omission or alleged  omission to
state therein a material fact required to be stated therein or necessary to make
the  statements  therein not  misleading,  (ii) any untrue  statement or alleged
untrue  statement  of a material  fact  contained  in the final  prospectus  (as
amended  or  supplemented,  if  the  Company  files  any  amendment  thereof  or
supplement  thereto with the SEC) or the  omission or alleged  omission to state
therein any material fact  necessary to make the  statements  made  therein,  in
light of the  circumstances  under which the  statements  therein were made, not
misleading  or (iii) any  violation  or alleged  violation by the Company of the
Securities  Act,  the  Exchange  Act,  any state  securities  law or any rule or
regulation  under the Securities  Act, the Exchange Act or any state  securities
law (the matters in the foregoing clauses (i) through (iii) being, collectively,
"Violations").  Subject  to clause  (b) of this  Section  6, the  Company  shall
reimburse the Investors,  promptly as such expenses are incurred and are due and
payable,  for any legal fees or other  reasonable  expenses  incurred by them in
connection  with  investigating  or  defending  any such Claim.  Notwithstanding
anything  to  the  contrary  contained  herein,  the  indemnification  agreement
contained in this Section 6(a) shall not (I) apply to a Claim arising out
of or based upon a Violation  which  occurs in reliance  upon and in  conformity
with  information  furnished  in writing  to the  Company by or on behalf of any
Indemnified  Person  expressly for use in connection with the preparation of the
Registration  Statement or any such amendment thereof or supplement  thereto, if
such  prospectus  was timely made  available by the Company  pursuant to Section
3(c) hereof; (II) be available to the extent such Claim is based on a failure of
the Investor to deliver or cause to be delivered the  prospectus  made available
by the  Company;  or (III) apply to amounts paid in  settlement  of any Claim if
such  settlement is effected  without the prior written  consent of the Company,
which consent shall not be unreasonably  withheld.  Each Investor will indemnify
the Company and its officers,  directors and agents  against any claims  arising
out of or based upon a Violation which occurs in reliance upon and in conformity
with  information  furnished in writing to the Company,  by or on behalf of such
Investor,   expressly  for  use  in  connection  with  the  preparation  of  the
Registration  Statement,  subject  to such  limitations  and  conditions  as are
applicable  to the  Indemnification  provided by the Company to this  Section 6.
Such  indemnity  shall  remain  in  full  force  and  effect  regardless  of any
investigation  made by or on behalf of the Indemnified  Person and shall survive
the transfer of the Registrable  Securities by the Investors pursuant to Section
9.

        (b) Promptly after receipt by an Indemnified Person or Indemnified Party
under this Section 6 of notice of the commencement of any action  (including any
governmental  action),  such Indemnified Person or Indemnified Party shall, if a
Claim in respect thereof is to be made against any indemnifying party under this
Section  6,  deliver  to  the  indemnifying   party  a  written  notice  of  the
commencement  thereof  and the  indemnifying  party  shall  have  the  right  to
participate in, and, to the extent the  indemnifying  party so desires,  jointly
with any other indemnifying  party similarly  noticed,  to assume control of the
defense thereof with counsel mutually satisfactory to the indemnifying party and
the Indemnified Person or the Indemnified Party, as the case may be. In case any
such action is brought against any Indemnified  Person or Indemnified Party, and
it notifies the indemnifying party of the commencement thereof, the indemnifying
party will be entitled to  participate  in, and, to the extent that it may wish,
jointly with any other indemnifying party similarly notified, assume the defense
thereof,  subject to the  provisions  herein  stated and after  notice  from the
indemnifying  party  to such  Indemnified  Person  or  Indemnified  Party of its
election so to assume the defense thereof,  the  indemnifying  party will not be
liable to such Indemnified  Person or Indemnified Party under this Section 6 for
any legal or other reasonable  out-of-pocket  expenses  subsequently incurred by
such  Indemnified  Person or  Indemnified  Party in connection  with the defense
thereof other than reasonable  costs of  investigation,  unless the indemnifying
party  shall not  pursue  the action of its final  conclusion.  The  Indemnified
Person or Indemnified  Party shall have the right to employ separate  counsel in
any such  action and to  participate  in the defense  thereof,  but the fees and
reasonable out-of-pocket expenses of such counsel shall not be at the expense of
the indemnifying  party if the indemnifying party has assumed the defense of the
action  with  counsel  reasonably  satisfactory  to the  Indemnified  Person  or
Indemnified  Party.  The failure to deliver  written notice to the  indemnifying
party within a reasonable time of the  commencement of any such action shall not
relieve such  indemnifying  party of any liability to the Indemnified  Person or
Indemnified  Party  under  this  Section  6,  except  to  the  extent  that  the
indemnifying  party is  prejudiced  in its  ability to defend such  action.  The
indemnification required by this Section 6 shall be made by periodic payments of
the amount thereof during the course of the  investigation  or defense,  as such
expense,  loss,  damage  or  liability  is  incurred  and  is due  and  payable.
Contribution.  To the extent any  indemnification  by an  indemnifying  party is
prohibited or limited by law, the indemnifying  party agrees to make the maximum
contribution  with respect to any amounts for which it would otherwise be liable
under Section 6 to the fullest extent permitted by law; provided,  however, that
(a) no contribution shall be made under  circumstances where the maker would not
have been  liable for  indemnification  under the fault  standards  set forth in
Section  6;  (b) no  seller  of  Registrable  Securities  guilty  of  fraudulent
misrepresentation  (within the meaning of Section 11(f) of the  Securities  Act)
shall be entitled to contribution from any seller of Registrable  Securities who
was not guilty of such fraudulent misrepresentation; and (c) contribution by any
seller of Registrable Securities shall be limited in amount to the net amount of
proceeds received by such seller from the sale of such Registrable Securities.

        8. Reports under  Exchange  Act. With a view to making  available to the
Investors the benefits of Rule 144  promulgated  under the Securities Act or any
other  similar  rule or  regulation  of the SEC that may at any time  permit the
Investors to sell  securities of the Company to the public without  registration
("Rule 144"), the Company agrees to:

        (a) make and keep  public  information  available,  as those  terms  are
understood and defined in Rule 144;

        (b) file with the SEC in a timely manner all reports and other documents
required of the Company under the Securities Act and the Exchange Act; and

        (c) furnish to each Investor so long as such  Investor owns  Registrable
Securities,  promptly upon request,  (i) a written statement by the Company that
it has complied with the reporting  requirements of Rule 144, the Securities Act
and the Exchange Act, (ii) a copy of the most recent annual or quarterly  report
of the Company and such other  reports and documents so filed by the Company and
(iii)  such  other  information  as may be  reasonably  requested  to permit the
Investors to sell such securities pursuant to Rule 144 without registration.

        9. Assignment of the Registration Rights. The rights to have the Company
register   Registrable   Securities   pursuant  to  this   Agreement   shall  be
automatically  assigned by the Investors to any  transferee  of the  Registrable
Securities  (or all or any  portion of any  Debenture  of the  Company  which is
convertible  into such  securities)  only if: (a) the Investor agrees in writing
with the  transferee  or  assignee  to assign  such  rights,  and a copy of such
agreement  is  furnished  to the  Company  within a  reasonable  time after such
assignment,  (b) the Company is, within a reasonable time after such transfer or
assignment,  furnished  with written  notice of (i) the name and address of such
transferee  or  assignee  and (ii) the  securities  with  respect  to which such
registration rights are being transferred or assigned, (c) immediately following
such transfer or assignment the further  disposition  of such  securities by the
transferee or assignee is restricted  under the  Securities  Act and  applicable
state  securities  laws, and (d) at or before the time the Company  received the
written  notice  contemplated  by clause (b) of this sentence the  transferee or
assignee agrees in writing with the Company to be bound by all of the provisions
contained  herein.  In the event of any delay in filing or  effectiveness of the
Registration Statement as a result of such assignment,  the Company shall not be
liable for any damages  arising  from such delay,  or the  payments set forth in
Section 2(c) hereof.

        10.Amendment of Registration Rights. Any provision of this Agreement may
be amended and the observance  thereof may be waived  (either  generally or in a
particular  instance and either  retroactively or prospectively),  only with the
written  consent of the Company and  Investors  who hold an eighty (80%) percent
interest of the  Registrable  Securities.  Any  amendment or waiver  effected in
accordance  with this  Section 10 shall be binding  upon each  Investor  and the
Company.

        11. Miscellaneous.

        (a) A  person  or  entity  is  deemed  to  be a  holder  of  Registrable
Securities  whenever  such  person or entity  owns of  record  such  Registrable
Securities.  If  the  Company  receives  conflicting  instructions,  notices  or
elections  from  two or more  persons  or  entities  with  respect  to the  same
Registrable  Securities,  the Company shall act upon the basis of  instructions,
notice  or  election  received  from the  registered  owner of such  Registrable
Securities.

        (b) Notices  required or  permitted  to be given  hereunder  shall be in
writing and shall be deemed to be sufficiently  given when personally  delivered
(by  hand,  by  courier,  by  telephone  line  facsimile  transmission,  receipt
confirmed,  or other means) or sent by certified mail, return receipt requested,
properly  addressed  and with proper  postage  pre-paid  (i) if to the  Company,
XYBERNAUT  CORPORATION,  12701 Fair Lakes Circle,  Suite 550, Fairfax,  Virginia
22033, ATTN: Steven Newman Telecopier No.: (703) 631-7070; with a copy to Parker
Chapin  Flattau & Klimpl,  LLP, 1211 Avenue of the Americas,  New York, New York
10036, ATTN: Martin Eric Weisberg, Esq., Telecopier No.: (212) 704-6288; (ii) if
to the  Initial  Investor,  at the  address  set  forth  under  its  name in the
Securities  Purchase Agreement,  with a copy to Samuel Krieger,  Esq., Krieger &
Prager, 319 Fifth Avenue, Third Floor, New York, NY 10016, Telecopier No.: (212)
213-2077;  and (iii) if to any other Investor,  at such address as such Investor
shall have provided in writing to the Company,  or at such other address as each
such party furnishes by notice given in accordance with this Section 11(b),  and
shall be effective, when personally delivered, upon receipt and, when so sent by
registered  or certified  mail,  four (4) calendar  days after  deposit with the
United States Postal Service.

        (c)  Failure  of any party to  exercise  any right or remedy  under this
Agreement or otherwise,  or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

        (a) This  Agreement  shall be governed by and  interpreted in accordance
with the laws of the State of New York without  giving effect to the  principles
thereof  regarding  the  conflict of laws.  Each of the parties  consents to the
jurisdiction  of the federal  courts whose  districts  encompass any part of the
City of New York or the state  courts of the  State of New York  sitting  in the
City of New York in connection with any dispute arising under this Agreement and
hereby waives, to the maximum extent permitted by law, any objection,  including
any  objection  based  on  forum  non  coveniens,  to the  bringing  of any such
proceeding in such jurisdictions.

        (b) If any provision of this Agreement shall be invalid or unenforceable
in any jurisdiction,  such invalidity or  unenforceability  shall not affect the
validity or enforceability of the remainder of this Agreement or the validity or
enforceability of this Agreement in any other jurisdiction.

        (c)  Subject to the  requirements  of Section 9 hereof,  this  Agreement
shall inure to the benefit of and be binding upon the  successors and assigns of
each of the parties hereto.

        (d) All  pronouns and any  variations  thereof  refer to the  masculine,
feminine or neuter, singular or plural, as the context may require.

        (e) The headings in this Agreement are for convenience of reference only
and shall not limit or otherwise affect the meaning thereof.

        (i) This Agreement may be executed in one or more counterparts,  each of
which shall be deemed an original but all of which shall  constitute one and the
same agreement.  This Agreement,  once executed by a party,  may be delivered to
the other party hereto by telephone  line  facsimile  transmission  of a copy of
this Agreement bearing the signature of the party so delivering this Agreement.

        (j) The Company  acknowledges that any failure by the Company to perform
its  obligations  under  Section 3(a) hereof,  or any delay in such  performance
could result in loss to the Investors,  and the Company agrees that, in addition
to any other  liability the Company may have by reason of such failure or delay,
the Company shall be liable for all direct  damages,  if any, caused by any such
failure or delay,  unless the same is the result of force majeure, or actions on
the part of the  Investor.  Neither  party  shall be  liable  for  consequential
damages.

        (k) This Agreement  constitutes  the entire  agreement among the parties
hereto with respect to the subject  matter  hereof.  There are no  restrictions,
promises, warranties or undertakings,  other than those set forth or referred to
herein. This Agreement  supersedes all prior agreements and understandings among
the parties hereto with respect to the subject matter hereof. This Agreement may
be amended only by an  instrument  in writing  signed by the party to be charged
with enforcement thereof.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]



                                        3

<PAGE>



        IN WITNESS  WHEREOF,  the parties have caused this  Agreement to be duly
executed by their  respective  officers  thereunto duly authorized as of the day
and year first above written.

                                                    XYBERNAUT CORPORATION


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


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

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


                                        4

<PAGE>





                                                                        ANNEX V


                               COMPANY DISCLOSURE
                               ------------------


Section 3(j):                             None

Section 3(k):                             None

Section 3(l):                             On June  30,  1997,  the  Company
                                          issued   3,000   shares  of  Series  A
                                          Preferred  Stock.  As of September 30,
                                          1997, twenty-five (25%) percent of the
                                          Series A  Preferred  Stock  have  been
                                          converted  into  Common  Stock  of the
                                          Company.


                                        5




                                                           Xybernaut Corporation
                                                              September __, 1997
                                                                          Page 1



                                                                    EXHIBIT 5.1




                                                              December 31, 1997

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 a 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 2,622,663  shares (the "Shares") of Common Stock, par value $.01 per
share (the "Common  Stock"),  issuable upon conversion of the Company's Series B
Preferred Stock (the "Series B Preferred Stock"), par value $.01 per share.

        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 upon  conversion of the Series B Preferred  Stock,  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



<PAGE>


Xybernaut Corporation
Exhibit 5.1 Opinion to Registration Statement on Form S-3


Prepared by:         Christopher S. Auguste                  _______

Reviewed by:         Gary J. Simon                           _______

Signed by:           Martin E. Weisberg                      _______




                       CONSENT OF INDEPENDENT ACCOUNTANTS



           We consent to the  inclusion in this  registration  statement on Form
S-3  of our  report  dated  March  31,  1997,  on our  audits  of the  financial
statements  of Xybernaut  Corporation.  We also consent to the  reference to our
firm under the caption "Experts".



                                                        /s/ Coopers & Lybrand
                                                        -----------------------
                                                        Coopers & Lybrand L.L.P.


McLean, VA
December 31, 1997


                                       -1-



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