Document:

THE SECURITIES  REPRESENTED BY THIS WARRANT MAY NOT BE OFFERED FOR SALE, SOLD OR
OTHERWISE  TRANSFERRED  EXCEPT PURSUANT TO AN EFFECTIVE  REGISTRATION  STATEMENT
FILED UNDER THE SECURITIES ACT OF 1933, AS AMENDED,  OR PURSUANT TO AN EXEMPTION
FROM REGISTRATION UNDER SUCH ACT.

Void after 5:00 P.M., New York Time, on December 31, 2003

                                                            Warrant to Purchase
                                                            94,554 Shares of
                                                            Common Stock

                    REDEEMABLE COMMON STOCK PURCHASE WARRANT

                  This Is to Certify That, FOR VALUE RECEIVED,

                            DIVERSIFIED LEASING INC.

is  entitled  to  purchase,  subject to the  provisions  of this  Warrant,  from
SYCONET.COM,  INC. (the "Company"),  a Delaware  corporation,  at any time on or
after May 1, 2000 (the "effective date"), and not later than 5:00 P.M., New York
time,  on December  31,  2003,  ninety- four  thousand  five hundred  fifty four
(94,554)  shares of Common Stock of the Company at a purchase price per share of
$1.21875;  provided,  however,  that the number of shares of Common  Stock to be
received  upon the exercise of this Warrant and the price to be paid for a share
of Common Stock shall be adjusted  form time to time as  hereinafter  set forth.
The shares of Common Stock deliverable upon such exercise,  and as adjusted from
time to time, are hereinafter  sometimes  referred to as "Warrant Stock" and the
exercise  price of this Warrant in effect at any time and as adjusted  from time
to time is  hereinafter  sometimes  referred  to as the  "Exercise  Price".  The
above-named  registered  owner of this  Warrant  and its  permitted  transferees
and/or assignees are hereinafter referred to as, collectively, the "Holder".

     (a) Exercise of Warrant. This Warrant may be exercised in whole at any time
or in part from time to time on any day after the closing price of the Company's
Common Stock shall have been equal to or greater than $10.00 for 15  consecutive
trading days, or if on any particular trading day within such period on which no
trading in such Stock shall have  occurred the closing bid price shall have been
equal to or greater than $10.00, but not later than 5:00 P.M., New York time, on
December  31,  2003,  or if  such  expiration  date  is a day on  which  banking
institutions  are  authorized by law to close,  then on the next  succeeding day
which shall not be such a day. This Warrant shall be exercised by

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presentation  and surrender hereof to the Company with the Purchase Form annexed
hereto duly  executed and  accompanied  by payment by certified or bank check or
wire  transfer of the Exercise  Price for the number of shares of Warrant  Stock
specified  in such form,  together  with all federal and state taxes  applicable
upon such  exercise.  If this  Warrant  should be  exercised  in part only,  the
Company  shall,  upon  surrender of this Warrant for  cancellation,  execute and
deliver a new warrant evidencing the right of the Holder to purchase the balance
of the Warrant Stock purchasable hereunder.  At the close of business on the day
of  receipt  by the  Company  of this  Warrant  at the  office  or agency of the
Company, in proper form for exercise and accompanied by payment as aforesaid for
the Warrant Stock to be acquired, the Holder shall be deemed to be the holder of
record of the number of fully  paid and  non-assessable  shares of Common  Stock
issuable upon such  exercise,  notwithstanding  that the stock transfer books of
the Company shall then be closed or that  certificates  representing such shares
of Common Stock shall not then actually be delivered to the Holder.

     (b)  Reservation  of Shares.  The Company  hereby  agrees that at all times
there shall be reserved  for  issuance  and/or  delivery  upon  exercise of this
Warrant  such  number of shares of its  Common  Stock as shall be  required  for
issuance or delivery upon exercise of this Warrant.

     (c)  Fractional   Shares.  No  fractional  shares  or  scrip   representing
fractional  shares  shall be issued  upon the  exercise  of this  Warrant.  With
respect to any  fraction of a share  called for upon any  exercise  hereof,  the
Company  shall  pay to the  holder  an  amount  in cash  equal to such  fraction
multiplied by the current market value of such fractional  share,  determined as
follows:

          (1) If the Common Stock is listed on a national securities exchange or
     admitted to unlisted trading privileges on such exchange, the current value
     shall be the last reported sales price of the Common Stock on such exchange
     on the last trading day prior to the date of exercise of this  Warrant,  or
     if no such  sale is made on such day,  the  average  closing  bid and asked
     prices for such day on the composite tape of such exchange; or

          (2) If the  Common  Stock is not so listed  or  admitted  to  unlisted
     trading  privileges,  the  current  value  shall  be the  mean of the  last
     reported  bid and asked  prices  reported by the  National  Association  of
     Securities  Dealers  Automated  Quotation  System  ("NASDAQ")  (or,  if not
     reported by NASDAQ,  then reported by the National Quotation Bureau,  Inc.)
     on the last trading day prior to the date of the exercise of this  Warrant;
     or

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<PAGE>

          (3) If the  Common  Stock is not so listed  or  admitted  to  unlisted
     trading  privileges  and bid and  asked  prices  are not so  reported,  the
     current  value shall be an amount,  not less than fully diluted book value,
     determined in such  reasonable  manner as may be prescribed by the Board of
     Directors of the Company, such determination to be final and binding on the
     Holder.

     (d) Exchange,  Assignment or Loss of Warrant. This Warrant is exchangeable,
without expense,  at the option of the Holder,  upon  presentation and surrender
hereof to the Company or at the office of its stock transfer  agent, if any, for
other  Warrants  of  different  denominations  entitling  the Holder  thereof to
purchase  in  the  aggregate  the  same  amount  of  Warrant  Stock  purchasable
hereunder. Any such assignment shall be made by surrender of this Warrant to the
Company  or at the  office  of its  stock  transfer  agent,  if  any,  with  the
Assignment  Form annexed  hereto duly  executed and funds  sufficient to pay any
transfer tax; whereupon the Company shall, without charge, execute and deliver a
new Warrant in the name of the assignee  named in such  instrument of assignment
and this Warrant  shall  promptly be  cancelled.  This Warrant may be divided or
combined  with other  Warrants  which carry the same  rights  upon  presentation
hereof  at the  office of the  Company  or at the  office of its stock  transfer
agent,  if  any,  together  with a  written  notice  specifying  the  names  and
denominations in which new Warrants are to be issued. The term "Warrant" as used
herein includes any Warrants  issued in substitution  for or replacement of this
Warrant, or into which this Warrant may be divided or exchanged. Upon receipt by
the Company of evidence  satisfactory to it of the loss,  theft,  destruction or
mutilation of this Warrant,  and (in the case of loss,  theft or destruction) of
indemnification  reasonably  satisfactory  in form and substance to its counsel,
and upon surrender and cancellation of this Warrant,  if mutilated,  the Company
will  execute  and  deliver a new  Warrant of like tenor and date.  Any such new
Warrant  executed and  delivered  shall  constitute  an  additional  contractual
obligation  on the part of the  Company,  whether  or not this  Warrant so lost,
stolen, destroyed, or mutilated, shall be at any time enforceable by anyone.

     (e) Rights of the  Holder.  The  Holder  shall not,  by virtue  hereof,  be
entitled  to any rights of a  shareholder  of the  Company,  either at law or in
equity,  and the  rights of the Holder are  limited to those  expressed  in this
Warrant and are not  enforceable  against  the Company  except to the extent set
forth herein.

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<PAGE>

     (f) Anti-Dilution Provisions.

          (1) Stock  Dividends,  Subdivisions and  Combinations.  If the Company
     shall  at  any  time  issue  Common  Stock  by  way of  dividend  or  other
     distribution  on the Common Stock of the  Company,  or subdivide or combine
     the  outstanding  shares of Common Stock,  then the Exercise Price shall be
     proportionately  decreased  in the  case  of  such  issuance  (on  the  day
     following the date fixed for determining  shareholders  entitled to receive
     such  dividend  or other  distribution)  or  decreased  in the case of such
     subdivision or increased in the case of such  combination (on the date that
     such  subdivision  or  combination  shall  become   effective).   Upon  any
     adjustment  of the  Exercise  Price  pursuant to this Section  (f)(1),  the
     holder of this Warrant shall thereafter  (until another such adjustment) be
     entitled to  purchase,  at the new  Exercise  Price,  the amount of Warrant
     Stock,  calculated to the nearest full share,  obtained by multiplying  the
     number of shares of  Warrant  Stock then  issuable  upon  exercise  of this
     Warrant by the  Exercise  Price then in effect and  dividing the product so
     obtained by the new Exercise Price.

          (2) No Adjustment for Small  Amounts.  Anything in this Section (f) to
     the  contrary  notwithstanding,  the Company  shall not be required to give
     effect to any  adjustment  in the  Exercise  Price unless and until the net
     effect of one or more adjustments, determined as above provided, shall have
     required a change of the  Exercise  Price by at least five  percent in such
     Price,  but when the  cumulative  net effect of more than one adjustment so
     determined  shall be to change the actual  Exercise  Price by at least five
     percent, such change in the Exercise Price shall thereupon be given effect.

          (3) Common Stock Defined.  Whenever  reference is made in this Section
     (f) to the issue or sale of shares of Common Stock, the term "Common Stock"
     shall mean the Common  Stock of the Company of the class  authorized  as of
     the date hereof and any other class of stock  ranking on a parity with such
     Common  Stock.  However,  subject to the  provisions of Section (i) hereof,
     shares issuable upon exercise hereof shall include only shares of the class
     designated as Common Stock of the Company as of the date hereof.

     (g) Officer's Certificate. Whenever the Exercise Price shall be adjusted as
required by the  provisions of Section (f) hereof,  the Company shall  forthwith
file in the custody of its Secretary or an Assistant  Secretary at its principal
office,  and with its stock  transfer  agent,  if any, an officer's  certificate
showing the adjusted Exercise Price determined as herein provided

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<PAGE>

and setting forth in reasonable  detail the facts  requiring  such  adjustments.
Each officer's  certificate  shall be made available at all reasonable times for
inspection  by the Holder,  and the  Company  shall,  forthwith  after each such
adjustment,  mail a copy of such  certificate  to the Holder.  Such  certificate
shall be conclusive as to the correctness of such adjustment.

     (h)  Notices  to  Warrant  Holders.  So  long  as  this  Warrant  shall  be
outstanding and  unexercised,  (i) if the Company shall pay any dividend or make
any  distribution  upon the Common  Stock to the  holders  thereof as a group in
proportion to their respective shareholdings, or (ii) if the Company shall offer
to the holders of Common Stock,  as a group in  proportion  to their  respective
shareholdings,  for  subscription or purchase by them any shares of stock of any
class  or any  other  rights,  or  (iii) if any  capital  reorganization  of the
Company,  reclassification of the capital stock of the Company, consolidation or
merger of the Company with or into another  corporation  (other than a merger in
which the Company is the continuing corporation and which does not result in any
reclassification,  capital reorganization or other similar change of outstanding
shares of Common Stock of the class  issuable  upon  exercise of this  Warrant),
sale, lease or transfer of all or  substantially  all of the property and assets
of the Company to another corporation,  or voluntary or involuntary dissolution,
liquidation  or winding up of the Company  shall be effected,  then, in any such
case,  the Company shall cause to be delivered to the Holder,  at least ten days
prior to the date  specified  in (x) or (y) below,  as the case may be, a notice
containing a brief  description  of the proposed  action and stating the date on
which (x) a record is to be taken for the purpose of such dividend, distribution
or rights, or (y) such reclassification,  reorganization, consolidation, merger,
conveyance,  lease, dissolution,  liquidation or winding up is to take place and
the date,  if any,  as of which the holders of Common  Stock of record  shall be
entitled  to  exchange  their  shares of Common  Stock for  securities  or other
property deliverable upon such reclassification,  reorganization, consolidation,
merger, conveyance, dissolution, liquidation or winding up.

     (i)   Reclassification,   Reorganization   or   Merger.   In  case  of  any
reclassification,  capital  reorganization or other change of outstanding shares
of  Common  Stock of the  Company  (other  than a change  in par value or to par
value, or as a result of an issuance of Common Stock by way of dividend or other
distribution  or  of  a  subdivision  or   combination),   or  in  case  of  any
consolidation or merger of the Company with or into another  corporation  (other
than a merger in which the Company is the continuing  corporation and which does
not result in any reclassification, capital

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<PAGE>

reorganization or other similar change of outstanding  shares of Common Stock of
the class  issuable  upon exercise of this  Warrant),  or in case of any sale or
conveyance to any other corporation of the property and assets of the Company as
an entirety or substantially  as an entirety,  the Company shall cause effective
provision  to be made so that the  Holder  shall have the right  thereafter,  by
exercising this Warrant, to purchase the kind and amount of shares of securities
and other property receivable upon such reclassification, capital reorganization
or other similar  change,  consolidation,  merger,  sale or conveyance as if the
Holder had exercised this Warrant prior to such transaction.  Any such provision
shall include  provision for adjustments  which shall be as nearly equivalent as
may be  practicable  to  the  adjustments  provided  for in  this  Warrant.  The
foregoing  provisions  of this Section (i) shall  similarly  apply to successive
reclassifications,  capital  reorganizations  and  similar  changes of shares of
Common Stock and to successive consolidations, mergers, sales or conveyances.

     (j)  Spin-Offs.  In  the  event  the  Company  spins-off  a  subsidiary  by
distributing to the shareholders of the Company, as a dividend or otherwise, the
stock of the subsidiary, the Company shall reserve, for the life of the Warrant,
shares of the  subsidiary  to be  delivered  to the Holder upon  exercise of the
Warrant to the same  extent as if Holder was the owner of record of the  Warrant
Stock on the record date for payment of the shares of the subsidiary.

     (k) "Piggyback" Registration Rights.

          (1)  Definitions.  As used in this Section (k),  the  following  terms
     shall have the following meanings:

               (a) The term "Holder"  shall mean any person owning or having the
          right to acquire Registrable Securities or any permitted transferee of
          a Holder.

               (b) The terms "register",  "registered" and "registration"  refer
          to a  registration  effected by  preparing  and filing a  registration
          statement or similar document  (except a Registration  Statement filed
          for a purpose  which would render  inappropriate  the covenants of the
          Company contained in this Section (k) such as a Registration Statement
          on Form S-8 or any other  inappropriate  form), in compliance with the
          Securities  Act of 1933, as amended (the  "Securities  Act"),  and the
          declaration or order of effectiveness of such  registration  statement
          or document.

               (c) The term  "Registrable  Securities"  shall  mean the  Warrant
          Stock; provided, however, that securities shall

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<PAGE>

          only be  treated  as  Registrable  Securities  (1) if this  Warrant is
          exercisable,  i.e.,  the closing price of the  Company's  Common Stock
          shall  have been equal to or greater  than  $10.00 for 15  consecutive
          trading days, or if on any  particular  trading day within such period
          on which no trading in such Stock shall have  occurred the closing bid
          price shall have been greater than $10.00, and (2) only for so long as
          such   securities  (A)  have  not  been  disposed  of  pursuant  to  a
          registration  statement  declared  effective  by  the  Securities  and
          Exchange Commission  ("SEC"),  (B) have not been sold in a transaction
          exempt from the registration and prospectus  delivery  requirements of
          the Securities Act wherein all transfer  restrictions  and restrictive
          legends with respect thereto are removed upon the consummation of such
          sale and (C) are  held by a  Holder  or a  permitted  transferee  of a
          Holder pursuant to Section (k)(10) below.

          (2) Registration under the Securities Act.

               (a) In the event that at any time  before the second  anniversary
          of the effective date of this Warrant the Company  intends to register
          securities  which relate to a current  offering of  securities  of the
          Company,  the Company shall give written notice (the "Company Notice")
          of such intention to the Holder, and upon receipt within 30 days after
          the giving of the Company Notice of the written request of the Holder,
          the  Company  shall  include  in  such  registration  the  Registrable
          Securities  of the Holder so as to permit the public  sale  thereof by
          the Holder in compliance with the Securities Act. Neither the delivery
          of a Company Notice nor of a registration  request by any Holder shall
          in any way obligate the Company to file such  Registration  Statement.
          Notwithstanding  the filing of the Registration  Statement the Company
          may, at any time prior to the effective date thereof, determine not to
          offer the  securities  to which it relates,  without  liability to the
          Holder  except that the Company  shall pay such  expenses as are to be
          paid by it under Section (k)(5).

               (b) In no event shall the Company be  obligated to file more than
          one registration  statement for the subject Registrable  Securities on
          account of the registration rights granted to the Holders thereof.

          (3) Obligations of the Company.  Whenever  required under this Section
     (k) to include  Registrable  Securities in a  registration  statement,  the
     Company shall, as expeditiously as reasonably possible:

               (a) Use its  reasonable  best efforts to cause such  registration
          statement to become effective, and, upon the request of the Holders of
          a majority of the Registrable Securities

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<PAGE>

          registered thereunder,  keep such registration statement effective for
          a period of up to 120 days or until the  distribution  contemplated in
          the  Registration  Statement has been completed and, during the period
          that  such  registration   statement  is  required  to  be  maintained
          hereunder, file such post-effective amendments and supplements thereto
          as may be required by the Securities Act and the rules and regulations
          thereunder or otherwise to ensure that the prospectus included therein
          does not contain  any untrue  statement  of  material  fact or omit to
          state a fact  required to be stated  therein or  necessary to make the
          statements  contained  therein,  in light of the  circumstances  under
          which they are made,  not  misleading;  provided,  however,  that such
          120-day  period  shall be  extended  for a period of time equal to the
          period that the Holder  refrains from selling any securities  included
          in such regis tration at the request of an underwriter of Common Stock
          (or other  securities)  of the Company,  and provided  further that if
          applicable  rules under the Securities Act governing the obligation to
          file  a  post-effective   amendment   permit,  in  lieu  of  filing  a
          post-effective  amendment that (i) includes any prospectus required by
          Section  10(a)(3)  of the  Securities  Act or (ii)  reflects  facts or
          events   representing  a  material  or   fundamental   change  in  the
          information set forth in the registration  statement,  the Company may
          incorporate  by reference  information  required to be included in (i)
          and (ii) above to the extent such information is contained in periodic
          reports  filed  pursuant  to  Section  13 or 15(d)  of the  Securities
          Exchange  Act  of  1934,  as  amended  (the  "Exchange  Act"),  in the
          registration statement.

               (b) Prepare and file with the SEC such amendments and supplements
          to such registration statement,  and the prospectus used in connection
          with such registration  statement,  as may be necessary to comply with
          the provisions of the  Securities Act with respect to the  disposition
          of all securities covered by such registration statement.

               (c)  Furnish  to  the  Holders   such  numbers  of  copies  of  a
          prospectus,   including  a   preliminary   prospectus  as  amended  or
          supplemented from time to time, in conformity with the requirements of
          the  Securities  Act, and such other  documents as they may reasonably
          request  in  order  to  facilitate  the   disposition  of  Registrable
          Securities owned by them.

               (d) Use its  reasonable  best efforts to register and qualify the
          Registrable  Securities  covered by such registration  statement under
          such other federal or state  securities laws of such  jurisdictions as
          shall be reasonably requested by the Holders; provided,  however, that
          the  Company  shall not be required in  connection  therewith  or as a
          condition thereto to qualify to do

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<PAGE>

          business  or to file a general  consent  to  service of process in any
          such states or jurisdictions, unless the Company is already subject to
          service  in such  jurisdiction  and except as may be  required  by the
          Securities Act.

               (e) In the event of any underwritten public offering,  enter into
          and perform its obligations under an under writing agreement, in usual
          and customary  form,  with the managing  underwriter of such offering.
          Each Holder  participating in such underwriting  shall also enter into
          and perform its obligations under such an agreement.

               (f) At  any  time  when  a  prospectus  relating  to  Registrable
          Securities  covered by such  registration  statement is required to be
          delivered  under the Securities  Act,  notify each Holder (i) when the
          registration statement or any post-effective  amendment and supplement
          thereto has become  effective,  (ii) of the issuance by the SEC of any
          stop order or the initiation of proceedings for that purpose (in which
          event the Company shall make every effort to obtain the  withdrawal of
          any order suspending  effectiveness  of the registration  statement at
          the earliest possible time or prevent the entry thereof), (iii) of the
          receipt  by  the  Company  of any  notification  with  respect  to the
          suspension of the qualification of the Registrable Securities for sale
          in any  jurisdiction  or the  initiation  of any  proceeding  for such
          purpose  and (iv) of the  happening  of any event as a result of which
          the prospectus  included in such  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  not  misleading  in the  light  of the
          circumstances then existing.

               (g) Cause all such Registrable Securities registered hereunder to
          be listed on each  securities  exchange or quotation  service on which
          similar securities issued by the Company are then listed or quoted.

               (h) Provide a transfer  agent and registrar  for all  Registrable
          Securities  registered  hereunder  and a CUSIP  number  for  all  such
          Registrable Securities, in each case not later than the effective date
          of such registration.

          (4)  Holders'  Obligation  to  Furnish  Information.  It  shall  be  a
     condition  precedent  to the  obligation  of the Company to take any action
     pursuant to this Section (k) with respect to the Registrable  Securities of
     any  selling  Holder  that such Holder  shall  furnish to the Company  such
     information  regarding the Holder,  the Registrable  Securities held by the
     Holder, and the intended method

                                       9
<PAGE>

     of  disposition of such  securities as shall be reasonably  required by the
     Company to effect the registration of such Holder's Registrable Securities.

          (5) Expenses of Piggyback Registration. The Company shall bear and pay
     all expenses  incurred in connection  with any  registration of Registrable
     Securities  pursuant  to  Section  (k)(2)(a)  for  each  Holder,  including
     (without  limitation) all registration,  filing,  and  qualification  fees,
     printers  and  accounting  fees  relating  or  apportionable  thereto,  but
     excluding  underwriting  discounts and commissions  relating to Registrable
     Securities;  provided, however, that the Company shall not bear the cost of
     any professional  fees or costs of accounting,  financial or legal advisors
     to any of the Holders. Notwithstanding the foregoing, each Holder shall pay
     all  registration  expenses  that  such  Holder  is  required  to pay under
     applicable law.

          (6)  Underwriting  Requirements.   In  connection  with  any  offering
     involving an  underwriting  of shares of the Company's  capital stock,  the
     Company shall not be required  under  Section  (k)(2) to include any of the
     Holders' Registrable Securities in such underwriting unless they accept the
     terms of the  underwriting  as agreed  upon  between  the  Company  and the
     underwriters  selected  by it (or by other  persons  entitled to select the
     underwriters), and then only in such quantity as the underwriters determine
     in their sole discretion will not jeopardize the success of the offering by
     the  Company.  If the total  amount of  securities,  including  Registrable
     Securities,  requested  by  selling  stockholder  to be  included  in  such
     offering  exceeds  the  amount of  securities  to be sold other than by the
     Company  that the  underwriters  determine  in  their  sole  discretion  is
     compatible  with the success of the  offering,  then the  Company  shall be
     required to include in the  offering  only that number of such  securities,
     including Registrable Securities, which the underwriters determine in their
     sole  discretion  will not  jeopardize  the  success of the  offering  (the
     securities  so  included  to be  apportioned  pro rata  among  the  selling
     stockholders,  including  the  Holders,  according  to the total  amount of
     securities   entitled  to  be  included   therein  owned  by  each  selling
     stockholder or in such other  proportions as shall mutually be agreed to by
     such selling  stockholders).  For purposes of the  preceding  parenthetical
     concerning  apportionment,  for any selling  stockholder who is a Holder of
     Registrable  Securities and is a partnership or corporation,  the partners,
     retired partners and stockholders of such holder, or the estates and family
     members of any such  partners  and retired  partners and any trusts for the
     benefit  of any of the  foregoing  persons  shall be  deemed to be a single
     "selling  stockholder",  and any  pro-rata  reduction  with respect to such
     "selling stockholder" shall be based upon the

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<PAGE>

     aggregate  amount  of  shares  carrying  registration  rights  owned by all
     entities  and  individuals  included  in such  "selling  stockhold  er", as
     defined in this sentence.

          (7) Delay of Registration. No Holder shall have any right to obtain or
     seek an injunction  restraining or otherwise delaying any such registration
     as the  result of any  controversy  that might  arise  with  respect to the
     interpretation or implementation of these Registration Rights.

          (8) Indemnification. In the event that any Regis trable Securities are
     included in a registration statement under this Section (k)(2):

               (a) To the extent  permitted by law,  the Company will  indemnify
          and hold  harmless  each Holder,  any  underwriter  (as defined in the
          Securities Act) for such Holder and each person,  if any, who controls
          such Holder or underwriter within the meaning of the Securities Act or
          the Exchange Act, against any losses, claims,  damages, or liabilities
          (joint  or  several)  to  which  they may  become  subject  under  the
          Securities Act, or the Exchange Act,  insofar as such losses,  claims,
          damages,  or liabilities (or actions in respect  thereof) arise out of
          or are  based  upon  any of the  following  statements,  omissions  or
          violations  (collectively a "Violation"):  (i) any untrue statement or
          alleged  untrue  statement  of  a  material  fact  contained  in  such
          registration statement,  including any preliminary prospectus or final
          prospectus contained therein or any amendments or supplements thereto,
          (ii) 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, or (iii) any violation or alleged violation by
          the Company of the  Securities  Act, the Exchange  Act, or any rule or
          regulation  promulgated under the Securities Act, or the Exchange Act,
          and  the  Company  will  pay  to  each  such  Holder,  underwriter  or
          controlling   person,  as  incurred,   any  legal  or  other  expenses
          reasonably  incurred  by  them in  connection  with  investigating  or
          defending  any  such  loss,  claim,  damage,   liability,  or  action;
          provided,  however,  that the  indemnity  agreement  contained in this
          Section  (k)(8) shall not apply to amounts paid in  settlement  of any
          such loss, claim, damage,  liability,  or action if such settlement is
          effected  without the consent of the Company  (which consent shall not
          be unreasonably withheld), nor shall the Company be liable in any such
          case for any such loss,  claim,  damage,  liability,  or action to the
          extent that it arises out of or is based upon a Violation which occurs
          in reliance upon and in conformity with written information  furnished
          expressly for use in  connection  with such  registration  by any such
          Holder, underwriter or controlling person.

                                       11
<PAGE>

               (b) To the extent  permitted  by law,  each  selling  Holder will
          indemnify and hold harmless the Company,  each of its directors,  each
          of its  officers  who has  signed  the  registration  statement,  each
          person,  if any, who  controls  the Company  within the meaning of the
          Securities Act, any underwriter,  any other person selling  securities
          in such registration  statement and any controlling person of any such
          underwriter or other person, against any losses,  claims,  damages, or
          liabilities  (joint or several) to which any of the foregoing  persons
          may become  subject,  under the  Securities  Act, or the Exchange Act,
          insofar as such losses, claims, damages, or liabilities (or actions in
          respect thereto) arise out of or are based upon any Violation, in each
          case to the extent (and only to the extent) that such Violation occurs
          in reliance upon and in conformity with written information fur nished
          by such Holder expressly for use in connection with such registration;
          and each  such  Holder  will  pay,  as  incurred,  any  legal or other
          expenses  reasonably incurred by any person intended to be indemnified
          pursuant to this Section (8)(b),  in connection with  investigating or
          defending  any  such  loss,  claim,  damage,   liability,  or  action;
          provided,  however,  that the  indemnity  agreement  contained in this
          Section  (8)(b) shall not apply to amounts paid in  settlement  of any
          such loss,  claim,  damage,  liability or action if such settlement is
          effected without the consent of the Holder, which consent shall not be
          unreasonably withheld; provided, that, in no event shall any indemnity
          under this Section  (8)(b) exceed the gross proceeds from the offering
          received by such Holder.

               (c) Promptly  after  receipt by an  indemnified  party under this
          Section (8) of notice of the commencement of any action (including any
          governmental  action),  such  indemnified  party shall,  if a claim in
          respect  thereof is to be made  against any  indemnifying  party under
          this Section (8), 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 notified,
          to  assume  the  defense   thereof  with   counsel   selected  by  the
          indemnifying  party  and  approved  by the  indemnified  party  (whose
          approval shall not be unreasonably withheld);  provided, however, that
          an  indemnified  party  (together with all other  indemnified  parties
          which may be represented  without  conflict by one counsel) shall have
          the right to retain one separate  counsel,  with the fees and expenses
          to be paid by the indemnifying  party, if representation of such indem
          nified party by the counsel retained by the  indemnifying  party would
          be  inappropriate  due to  actual  or  potential  differing  interests
          between such indemnified party and any other party represented by such
          counsel in such  proceeding.  The failure to deliver written notice to
          the  indemnifying  party within a rea-

                                       12
<PAGE>

          sonable time of the commencement of any such action, if prejudicial to
          its ability to defend such action,  shall  relieve  such  indemnifying
          party of any  liability  to the  indemnified  party under this Section
          (8), but the omission so to deliver written notice to the indemnifying
          party  will not  relieve it of any  liability  that it may have to any
          indemnified party otherwise than under this Section (8).

               (d) If the  indemnification  provided  for in this Section (8) is
          held by a court of  competent  jurisdiction  to be  unavailable  to an
          indemnified party with respect to any loss, liability,  claim, damage,
          or expense referred to therein,  then the indemnifying  party, in lieu
          of indemnifying such indemnified party hereunder,  shall contribute to
          the amount  paid or payable by such  indemnified  party as a result of
          such loss, liability,  claim, damage, or expense in such proportion as
          is appropriate to reflect the relative fault of the indemnifying party
          on the  one  hand  and of  the  indemnified  party  on  the  other  in
          connection  with the  statements  or omissions  that  resulted in such
          loss,  liability,  claim,  damage,  or  expense  as well as any  other
          relevant   equitable   considerations.   The  relative  fault  of  the
          indemnifying party and of the indemnified party shall be determined by
          reference to, among other things, whether the untrue or alleged untrue
          statement of a material  fact or the omission to state a material fact
          relates to information  supplied by the  indemnifying  party or by the
          indemnified party and the parties' relative intent, knowledge,  access
          to  information,  and opportunity to correct or prevent such statement
          or omission.

               (e)  Notwithstanding  the  foregoing,  to  the  extent  that  the
          provisions  on  indemnification  and  contribution  contained  in  the
          underwriting   agreement   entered   into  in   connection   with  the
          underwritten  public  offering  are in  conflict  with  the  foregoing
          provisions,   the  provisions  in  the  underwriting  agreement  shall
          control.

               (f) The obligations of the Company and Holders under this Section
          (8) shall  survive  the  completion  of any  offering  of  Registrable
          Securities  in  a  registration  statement  under  these  Registration
          Rights, and otherwise.

          (9) Reports under the Exchange Act. With a view to making available to
     the Holders the  benefits of Rule 144 and any other rule or  regulation  of
     the SEC that may at any time  permit  a Holder  to sell  securities  of the
     Company to the public  pursuant  to an  exemption  from  registration,  the
     Company agrees to:

                                       13
<PAGE>

               (a) 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

               (b)  Furnish  to any  Holder,  so long  as the  Holder  owns  any
          Registrable Securities,  forthwith upon request (i) 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 (ii) such other
          information  as may be reasonably  requested in availing any Holder of
          any rule or  regulation  of the SEC which  permits  the selling of any
          such securities without registration or pursuant to such form.

          (10) Permitted Transferees. The right to cause the Company to register
     Registrable  Securities  granted  to the Holder by the  Company  under this
     Warrant may be assigned in full by a Holder in  connection  with a transfer
     by such Holder of its  Registrable  Securities  if: (a) such  Holder  gives
     prior written notice to the Company;  (b) such transferee  agrees to comply
     with the terms and  provisions  of this  Agreement;  (c) such  transfer  is
     otherwise  in  compliance  with this  Agreement  and (d) such  transfer  is
     otherwise be effected in accordance with applicable securities laws. Except
     as specifically permitted by this Section (10), the rights of a Holder with
     respect  to  Registrable   Securities  as  set  out  herein  shall  not  be
     transferable  to any other person,  and any attempted  transfer shall cause
     all rights of such Holder therein to be forfeited.

          (11)  Termination of Registration  Rights.  The right of any Holder to
     request the filing or  inclusion  in any  registration  pursuant to Section
     (k)(2) shall  terminate if all  Registrable  Securities held by such Holder
     may immediately be sold under Rule 144.

     (l)  Redemption  of Warrants.  Provided the closing  price of the Company's
Common Stock shall have been equal to or greater than $10.00 for 15  consecutive
trading days, or if on any particular  trading day within such period no trading
in such Stock  shall have  occurred  and the  closing  bid price shall have been
equal to or greater  than $10.00,  the Company  shall have the right to call the
Warrants for redemption at a price of $.001 per Warrant at any time. The Company
shall give no less than 30 days written  notice of  redemption to the Holders as
of the date of such notice.  Such notice  shall set a  redemption  date not more
than 90 days after the date of the redemption  notice (the  "Redemption  Date").
Upon the Redemption  Date, the Warrants shall be cancelled and shall  thereafter
be null and void and of no effect,  and the Company  shall pay to the Holders as
of the date of the notice the above

                                       14
<PAGE>

redemption price upon surrender of their Warrants. No Warrant will be subject to
redemption  unless at the time of the giving of such  notice the  Company has an
effective  registration  statement under the Securities Act registering its sale
of the Warrant Stock.

     (m) Transfer to Comply with the Securities Act.

          (1) This Warrant,  or any new warrant  issued  pursuant to Section (d)
     hereof,  or the Warrant Stock or any other security issued or issuable upon
     exercise of this  Warrant,  may not be offered or sold except in conformity
     with the  Securities  Act and then only against  receipt of an agreement of
     such  person  to whom  such  offer  of sale is  made  to  comply  with  the
     provisions  of this  Section  (m)  with  respect  to any  resale  or  other
     disposition of such securities.

          (2) The  Company  may cause a  customary  legend  for  securities  not
     registered  under the  Securities  Act to be set forth on each  certificate
     representing  Warrant Stock or any other  security  issued or issuable upon
     exercise of this Warrant not theretofore  distributed to the public or sold
     to  underwriters  for  distribution  to the public  pursuant to Section (k)
     hereof,  unless  counsel  for the  Company is of the opinion as to any such
     certificate that such legend is unnecessary.

     (n)   Notices.   All   notices,   requests,   claims,   demands  and  other
communications  hereunder  shall be in writing and shall be given  either (i) by
delivery in person,  in which case any such notice  shall be deemed to have been
duly given upon  receipt,  or (ii) by certified  mail,  (postage paid and return
receipt  requested),in  which case said  notice will be deemed to have been duly
given three (3) days after such mailing, to the respective parties as follows:

     If to the Company:

          SYCONET.COM, INC.
          9208A Venture Court
          Manassas Park, Virginia 20111

     If to Holder:

          DIVERSIFIED LEASING INC.
          133 Defense Highway
          Suite 106
          Annapolis, Maryland 21401

                                       15
<PAGE>

or to such other  address  as either  party may have  furnished  to the other in
writing in accordance herewith, except that notices of a change of address shall
only be effective upon receipt.

     (n)  Governing  Law.  This  Warrant  shall be governed by and  construed in
accordance  with  the laws of the  State  of New  York,  without  regard  to the
principles of conflict of laws.

     (o) No Prior  Agreements.  This Warrant (i) contains the entire  agreement,
and supersedes all other prior agreements and  understandings,  both written and
oral,  between the parties hereto with respect to the subject matter hereof, and
(ii) is not  intended  to confer  upon any other  person any rights or  remedies
hereunder.

     (p) Effect of Headings.  The section  headings  herein are for  convenience
only and shall not affect the meaning or construction of this Agreement.

                                        SYCONET.COM, INC.

                                        By: ____________________________________
                                            Sy Picon, Chairman

                                       16
<PAGE>

                                  PURCHASE FORM

                                           Dated _______________________ , 20___

     The undersigned hereby irrevocably elects to exercise the within Warrant to
the extent of purchasing  _____________  shares of Common Stock of  SYCONET.COM,
INC. and hereby makes payment of $__________  in payment of the actual  exercise
price thereof.

                     INSTRUCTIONS FOR REGISTRATION OF STOCK

Name____________________________________________________________________________
     (please typewrite or print in block letters)

Address_________________________________________________________________________

Signature_______________________________________________________________________

Social Security or Employer I.D. No.____________________________________________

                                 ASSIGNMENT FORM

     FOR VALUE RECEIVED, _______________________________________________________

hereby sells, assigns and transfers unto

Name____________________________________________________________________________
     (please typewrite or print in block letters)

Address_________________________________________________________________________

the right to purchase Common Stock, represented by this Warrant to the extent of
__________ shares as to which right is exercisable,  and does hereby irrevocably
constitute and appoint  ____________________,  attorney, to transfer the same on
the books of the Company with full power of substitution in the premises.

                                        Signature_______________________________

Dated _______________________ , 20___

                                       17<PAGE>   1

                                                                    EXHIBIT 4.09

                                  APERIO, INC.

                1998 INCENTIVE AND NONQUALIFIED STOCK OPTION PLAN

SECTION 1. PURPOSES OF PLAN; DEFINITIONS

         1.1. General Purposes. Aperio, Inc, a Delaware corporation (the
"Company"), desires to afford certain executives, key employees and directors
of, and certain other individuals providing services to, the Company an
opportunity to initiate or increase their proprietary interests in the Company,
and thus to create in such persons an increased interest in and greater concern
for the long-term welfare of the Company. By granting stock options to acquire
shares of common stock of the Company under this 1998 Incentive and Nonqualified
Stock Option Plan (this "Plan"), the Company seeks to retain the services of
persons now holding key positions with the Company and to secure the services of
other persons capable of filling key positions with the Company or its parent or
subsidiary companies.

        1.2. Definitions. For purposes of this Plan, the following terms shall
have the indicated meanings:

         "Affiliated Companies" means the parent corporation, if any, and each
subsidiary corporation of the Company, as those terms are defined in Section 424
of the Code.

         "Board" means the Board of Directors of the Company.

         "Cause" shall mean, with respect to any Option holder, a determination
by the Company (including the Board) or any Affiliated Company that the Option
holder's employment or other relationship with the Company or such Affiliated
Company should be terminated as a result of (i) the Option holder's material
breach of any agreement to which the Option holder and the Company (or such
Affiliated Company) are parties, (ii) any act (other than retirement) by the
Option holder that may have a material and adverse effect on the business of the
Company, such Affiliated Company or any other Affiliated Company or on the
Option holder's ability to perform services for the Company or such Affiliated
Company, including the proven or admitted commission of any crime (other than an
ordinary traffic violation), or (iii) any material misconduct or material
neglect of duties by the Option holder in connection with the business or
affairs of the Company or such Affiliated Company.

         "Code" means the Internal Revenue Code of 1986, as amended, and any
successor code thereto, together with related rules, regulations and
interpretations; and any reference herein to a particular Section of the Code
shall include any successor provision of the Code.

         "Committee" has the meaning set forth in Section 2.1 hereof.

         "Common Stock" means the Common Stock, $.01 par value per share, of the
Company, subject to adjustment pursuant to Section 8 hereof.

         "Greater-Than-Ten-Percent Stockholder" means any individual who, at the
time he or she is granted an Option, owns or, as a result of the attribution
rules of Section 424(d) of the Code, is deemed

<PAGE>   2

to own more than ten percent of the total combined voting power of all classes
of stock of the Company or any Affiliated Company.

         "Incentive Option" means any Option designated and qualified as an
"incentive stock option" within the meaning of Section 422 of the Code. To the
extent that any Option intended as an Incentive Option does not qualify as an
Incentive Option, then to the extent of such nonqualification, such option (or
portion thereof) shall be regarded as a Nonqualified Option appropriately
granted under the Plan, provided that such option (or portion thereof) otherwise
meets the Plan's requirements relating to Nonqualified Options.

         "Nonqualified Option" means any Option that is not an Incentive Option.

         "Securities Act" means the Securities Act of 1933, as amended, and any
successor act thereto, together with related rules, regulations and
interpretations.

         "Transaction" has the meaning set forth in Section 8.3 hereof.

SECTION 2. ADMINISTRATION

         2.1. Committee. The Board may designate a committee (the "Committee")
to administer this Plan. Except as specifically reserved to the Board under the
terms of this Plan, the Committee shall have full and final authority to
operate, manage and administer this Plan on behalf of the Company. Action by the
Committee shall require the affirmative vote of a majority of all members
thereof. Any or all powers and functions of the Committee may at any time and
from time to time be exercised by the Board, and any reference in this Plan to
the Committee shall be deemed to refer to the Board to the extent the Board is
exercising any of the powers and functions of the Committee.

        2.2. Powers of the Committee. Subject to the terms and conditions of
this Plan, the Committee shall have the power:

               (a) to determine from time to time the individuals to whom
         Options shall be granted and the terms, conditions, restrictions and
         provisions (which need not be identical) of each of those Options,
         including, with respect to each Option, the time at which the Option
         shall be granted, the number of shares of Common Stock that shall be
         subject to the Option, the exercise price for each share of Common
         Stock subject to the Option, and the period during which the Option
         shall be exercisable (whether in whole or in part);

               (b) to make, in its sole discretion, changes to any outstanding
         Option granted under this Plan, including a reduction of the exercise
         price, an acceleration of the vesting schedule or an extension of the
         expiration date;

               (c) to accelerate, in its sole discretion, an Option holder's
         right to exercise his or her Option in whole or in part, conditionally
         or unconditionally, at any time, including upon consummation of the
         initial public offering of Common Stock;

               (d) generally, to exercise such powers and to perform such acts
         as are deemed necessary or expedient to promote the best interests of
         the Company with respect to this Plan; and

               (e) to construe and interpret this Plan and Options granted
         hereunder and to establish, amend and revoke rules and regulations for
         administration of this Plan. In this connection, the

<PAGE>   3

        Committee may supply any omission, reconcile any inconsistency or
        correct any other defect in this Plan or in any Option agreement in the
        manner and to the extent it shall deem necessary or expedient to make
        this Plan fully effective.

All decisions and determinations by the Committee in the exercise of the
foregoing powers shall be final and binding upon the Company and Option holders.
No member or former member of the Committee or the Board shall be liable for any
action or determination made in good faith with respect to this Plan or any
Option.

SECTION 3. STOCK

         3.1. Stock to be Issued. The stock subject to Options granted under
this Plan may be shares of authorized and unissued Common Stock, shares of
Common Stock held in treasury or both, at the discretion of the Company. The
total number of shares of Common Stock subject to Options shall not exceed
300,000* in the aggregate, provided, however, that the class and aggregate
number of shares subject to Options shall be subject to adjustment as provided
in Section 8 hereof.

         3.2. Termination of Option. If any Option granted under this Plan
expires or otherwise terminates without having been exercised in whole or in
part, the shares of Common Stock previously subject to the unexercised portion
of that Option may be the subject of new Options under this Plan.

         3.3. No Fractional Shares. In no event shall any Option be exercisable
for a fraction of a share of Common Stock.

SECTION 4. ELIGIBILITY

         4.1. Individuals Eligible. Incentive Options and Nonqualified Options
may be granted to officers and other employees of the Company and Affiliated
Companies who, as of the date of grant, are employed by the Company or an
Affiliated Company. In addition, Nonqualified Options, but not Incentive
Options, may be granted to directors of the Company and Affiliated Companies
(including members of the Board) and to consultants and other individuals who
render services to the Company or any Affiliated Company. The Company intends
that Incentive Options will qualify as "incentive stock options" within the
meaning of Section 422 of the Code, and the terms of this Plan shall be
interpreted in accordance with this intention; the Company makes no warranty,
however, as to the qualification of any Option as an Incentive Option.

         4.2. Greater-Than-Ten-Percent Stockholders. Except as may otherwise be
permitted by the Code or other applicable law or regulation, no Incentive Option
shall be granted to a Greater-Than-Ten-Percent Stockholder unless (a) the
exercise price per share under the Incentive Option is at least 110% of the fair
market value of the Common Stock on the date of grant and (b) the Incentive
Option cannot be exercised to any extent after five years from the date of
grant.

         4.3. Maximum Aggregate Fair Market Value. During any given calendar
year, the aggregate fair market value of the Common Stock (determined at the
time the Incentive Option is granted) with respect to which Incentive Options
are exercisable for the first time by any Option holder under this Plan and any
other plans of the Company or Affiliated Companies for the issuance of incentive
stock options (within the meaning of Section 422 of the Code) shall not exceed
$100,000 or such greater amount as may from time to time be permitted with
respect to incentive stock options by the Code.

* The Company declared a 10-for-1 stock dividend subsequent to the date this
  Plan was adopted.
<PAGE>   4

SECTION 5. TERMINATION OF EMPLOYMENT OR DEATH OF OPTION HOLDER

        5.1. Termination of Employment. Except as otherwise expressly provided
herein, an Option shall terminate on the earliest of:

               (a) the date of expiration thereof;

               (b) the date of cancellation thereof pursuant to Section 8.3(c);

               (c) thirty days after the date on which the Option holder's
         employment with, or directorship or other services to, the Company and
         all Affiliated Companies are terminated other than for Cause or
         voluntarily by the Option holder; and

               (d) the date on which the Option holder's employment with, or
         directorship or other services to, the Company and all Affiliated
         Companies are terminated by the Company and each Affiliated Company for
         Cause;

provided that unless the Committee determines otherwise, Nonqualified Options
granted to individuals who are not employees of the Company need not be subject
to the provisions set forth in clauses (c) and (d) above. The Committee shall
determine whether an authorized leave of absence or an absence due to military
or government service shall constitute termination of an employment relationship
between the Company and the Option holder at the time thereof. Options shall not
be affected by any Option holder's change of employment within the Company and
Affiliated Companies nor by a change in the identity of the Company or
Affiliated Company to whom directorship or other services are provided, so long
as the Option holder continues to be an employee of, or to provide such services
to, the Company or any Affiliated Company.

         5.2. Death or Permanent Disability of Option Holder. For any Option
holder whose Option is subject to clauses (c) and (d) of Section 5.1 hereof, in
the event of such Option holder's death or permanent and total disability prior
to both the termination of the Option holder's services to the Company and the
date of expiration of such Option, the Option shall terminate on the earliest
of: (a) its date of expiration; (b) its date of cancellation pursuant to Section
8.3(c); and (c) 180 days after the date of such death or disability. After the
Option holder's death, his or her executors, administrators or any individual or
individuals to whom the Option may be transferred by will or by the laws of
descent and distribution shall have the right, at any time prior to the date of
such termination, to exercise the Option to the extent the Option holder was
entitled to exercise the Option immediately prior to his or her death.
"Permanent and total disability" for these purposes shall be determined in
accordance with Section 22(e)(3) of the Code and the rules, regulations and
interpretations issued thereunder.

SECTION 6. TERMS OF OPTION AGREEMENTS

         Each Option shall be evidenced by a written agreement containing such
terms, conditions, restrictions and other provisions as the Committee from time
to time shall deem appropriate. Any additional provisions, however, shall not be
inconsistent with any other term or condition of this Plan and shall not cause
any Incentive Option to fail to qualify as an incentive stock option within the
meaning of Section 422 of the Code. Option agreements need not be identical, but
each Option agreement shall include, by appropriate language, the substance of
the following provisions:

               6.1. Expiration of Option. Notwithstanding any other provision of
         this Plan or of the Option agreement, the Option shall expire on the
         date specified in the Option agreement. In the case of an Incentive
         Option, the expiration date shall not be later than the tenth
         anniversary (the

<PAGE>   5

        fifth anniversary in the case of a Greater-Than-Ten-Percent Stockholder)
        of the date on which the Option was granted, or as specified in Section
        5 hereof.

               6.2. Exercise. Each Option may be exercised in part from time to
         time or as a whole so long as it is valid and outstanding, subject to
         any limitations with respect to the number of shares exercisable at a
         particular time and to such other conditions as the Committee in its
         discretion may specify upon granting the Option.

               6.3. Exercise Price. At the time of grant, the Committee shall
         determine the exercise price per share under each Option, provided,
         however, that unless otherwise permitted by the Code, the exercise
         price of any Incentive Option shall not be less than the fair market
         value of the Common Stock on the date the Option is granted (110% of
         the fair market value in the case of a Greater-Than-Ten-Percent
         Stockholder). For this purpose, the "fair market value" of the Common
         Stock shall equal (a) the closing price per share on the date of grant
         as reported by a nationally recognized stock exchange, (b) if the
         Common Stock is not listed on such an exchange, as reported by the
         National Market System or another automated quotation system of the
         National Association of Securities Dealers, Inc. or (c) if the Common
         Stock is not quoted on any such system, the fair market value as
         determined by the Committee.

               6.4. Transferability of Options and Option Shares. No Option
         shall be transferable by its holder or by operation of law, other than
         by will or under the laws of descent and distribution. During the
         Option holder's lifetime, only the Option holder may exercise the
         Option. Upon granting an Option, the Committee may in its discretion
         provide that the shares of Common Stock purchasable upon exercise of
         the Option shall be subject to such transfer restrictions as the
         Committee may determine.

               6.5. Rights of Option Holders. No Option holder or other person,
         by virtue of the granting of an Option, shall be deemed for any purpose
         to be the owner of any shares of Common Stock subject to an Option or
         to be entitled to the rights or privileges of a holder of such shares.
         Such person shall only be deemed the owner of such shares when (a) the
         Option has been duly exercised pursuant to the terms thereof with
         respect to such shares and (b) the Company has issued and delivered the
         shares to the Option holder.

               6.6. Repurchase Right. Upon granting any Option, the Committee
         may in its discretion provide that the Company shall have an option to
         repurchase, upon terms and conditions determined by the Committee, all
         or any number of shares purchased upon exercise of such Option. The
         repurchase price per share payable by the Company shall be such amount
         or shall be determined by such formula as is fixed by the Committee at
         the time the Option is granted. In the event the Committee grants an
         Option subject to a repurchase option, then, so long as the shares
         purchased upon exercise of that Option remain subject to the repurchase
         option, each certificate representing those shares shall bear a legend
         satisfactory to counsel for the Company referring to the Company's
         repurchase option.

SECTION 7. METHOD OF EXERCISE; PAYMENT OF EXERCISE PRICE

         7.1. Method of Exercise. An Option holder may exercise an Option by
delivering to the Company, on any business day prior to the termination of the
Option, a written notice specifying the number of shares of Common Stock the
Option holder then desires to purchase and the address to which the certificates
for such shares are to be mailed, accompanied by payment of the exercise price
for such shares.

<PAGE>   6

        7.2. Payment of Exercise Price. Payment for the shares of Common Stock
purchased upon exercise of an Option shall be made by:

               (a) cash or a check, bank draft or postal or express money order
         payable in an amount equal to the aggregate exercise price for the
         shares being purchased;

               (b) with the consent of the Committee, shares of Common Stock
         having a fair market value (as defined for purposes of Section 6.3
         hereof) equal to such aggregate exercise price;

               (c) with the consent of the Committee, a personal recourse note
         issued by the Option holder to the Company in a principal amount equal
         to such aggregate exercise price and with such other terms, including
         interest rate and maturity, as the Committee may determine in its
         discretion, provided that the interest rate borne by such note shall
         not be less than the lowest applicable federal rate, as defined in
         Section 1274(d) of the Code;

               (d) with the consent of the Committee, such other consideration
         that is acceptable to the Committee and that has a fair market value,
         as determined by the Committee, equal to such aggregate exercise price;
         or

                (e) with the consent of the Committee, any combination of the
        foregoing.

As promptly as practicable after receipt of notice and payment pursuant to
Section 7.1 hereof and any documents required pursuant to Sections 9.2 and 9.3
hereof, the Company shall deliver to the Option holder a certificate registered
in the name of the Option holder and representing the number of shares purchased
pursuant to the exercise of such Option; provided, however, that if any law or
regulation or order of the Securities and Exchange Commission or any other body
having jurisdiction in the premises shall require the Company or the Option
holder to take any action in connection with the shares then being purchased,
the date for the delivery of the certificates for such shares shall be extended
for the period necessary to take and complete such action. The Company's
delivery of the certificate for such shares shall be deemed effected for all
purposes when the Company or its stock transfer agent has deposited the
certificate in the United States mail, addressed to the Option holder, at the
address specified in the notice delivered pursuant to Section 7.1 hereof.

SECTION 8. CHANGES IN COMPANY'S CAPITAL STRUCTURE

         8.1. Rights of Company. The existence of outstanding Options shall not
affect in any way the right or power of the Company or its stockholders to enter
into, make or authorize, without limitation: (a) any adjustment,
recapitalization, reorganization or other change in the Company's capital
structure or its business, (b) any merger or consolidation of the Company, (c)
any issue of Common Stock or of bonds, debentures, preferred or prior preference
stock or other capital stock ahead of or affecting the Common Stock or the
rights thereof, (d) a dissolution or liquidation of the Company, (e) any sale or
transfer of all or any part of the assets or business of the Company or (f) any
other corporate act or proceeding, whether of a similar character or otherwise.

         8.2. Recapitalization, Stock Splits and Dividends. If the Company shall
effect any subdivision or consolidation of shares of its stock or other capital
readjustment, the payment of a stock dividend or any other increase or reduction
of the number of shares of its stock outstanding, in any such case without
receiving compensation therefor in money, services or property, then:

<PAGE>   7

               (a) the number, class and price per share of stock subject to
         each outstanding Option shall be adjusted appropriately in such a
         manner as to entitle an Option holder to receive upon exercise of an
         Option, for the same aggregate cash consideration, the same total
         number and class of shares as he or she would have received as a result
         of the event requiring the adjustment had the Option holder exercised
         the Option in full immediately prior to such event; and

               (b) the number and class of shares subject to Options that may be
         granted under this Plan shall be adjusted by substituting the total
         number of shares of Common Stock then reserved for issuance under this
         Plan with that number and class of shares of stock that the owner of an
         equal number of outstanding shares of Common Stock would own as the
         result of the event requiring the adjustment.

         8.3. Mergers, Sales, etc. If the Company becomes a party to a
reorganization or merger with one or more other corporations (whether or not the
Company is the surviving or resulting corporation), consolidates with or into
one or more other corporations, becomes liquidated, or sells or otherwise
disposes of substantially all of its assets to another corporation (each a
"Transaction"), then:

               (a) subject to the provisions of clauses (b) and (c) below, after
         the effective date of the Transaction, each holder of an outstanding
         Option shall be entitled, upon exercise of such Option and at no
         additional cost, to receive shares of Common Stock or, if applicable,
         shares of such other stock or other securities, cash or property as the
         holders of shares of Common Stock received pursuant to the terms of the
         Transaction;

               (b) the Committee may accelerate the time for exercise of all
         outstanding Options to and after a date prior to the effective date of
         the Transaction, as specified by the Committee; or

               (c) the Committee may cancel all outstanding Options as of the
         effective date of the Transaction, provided that (i) notice of such
         cancellation shall have been given to each Option holder and (ii) each
         Option holder shall have the right to exercise such Option to the
         extent that the Option is then exercisable or, if the Committee shall
         have accelerated the time for exercise of all outstanding Options, in
         full during the thirty-day period preceding the effective date of the
         Transaction.

         8.4. Adjustments to Common Stock Subject to Options. Except as
hereinbefore expressly provided, the Company's issue of shares of stock of any
class, or securities convertible into shares of stock of any class, for cash or
property or for labor or services, either upon direct sale or upon the exercise
of rights or warrants to subscribe therefor, or upon the conversion of shares or
obligations of the Company convertible into such shares or other securities,
shall not affect, and no adjustment by reason thereof shall be made with respect
to, the number or price of shares of Common Stock then subject to outstanding
Options.

        8.5. Miscellaneous. Adjustments under this Section 8 shall be determined
by the Committee, and such determinations shall be conclusive. No fractional
shares of Common Stock shall be issued under this Plan on account of any
adjustment specified above.

<PAGE>   8

SECTION 9. GENERAL RESTRICTIONS

         9.1. Granting of Options. No Option may be granted under this Plan
after the tenth anniversary of the effective date of this Plan.

         9.2. Investment Representations. The Company may require, as a
condition to exercising an Option, that an Option holder give written assurances
in substance and form satisfactory to the Company to the effect that such
individual is acquiring the Common Stock subject to the Option for his or her
own account for investment and not with a view to the resale or distribution
thereof, and to such other effects as the Company deems necessary or advisable
in order to comply with the Securities Act and applicable state securities laws.

         9.3. Compliance with Securities Laws. The Company shall not be required
to sell or issue any shares under any Option if such sale or issuance would
constitute a violation by the Option holder or the Company of any provision of
any law or regulation of any governmental authority, including the Securities
Act. In addition, the Company shall not be required to issue shares upon the
exercise of any Option unless the Committee has received evidence satisfactory
to it that the Option holder will not transfer such shares except pursuant to a
registration statement in effect under the Securities Act or unless the Company
has received an opinion of counsel satisfactory to the Company to the effect
that such registration is not required. Any determination in this connection by
the Committee shall be final, binding and conclusive. In the event the shares
issuable on exercise of an Option are not registered under the Securities Act,
the Company may imprint upon any certificate representing shares so issued the
following legend or any other legend that counsel for the Company considers
necessary or advisable to comply with the Securities Act and applicable state
securities laws:

"The shares of stock represented by this certificate have not been registered
under the transferred except upon such registration or upon receipt by the
issuer of an opinion of counsel satisfactory to the issuer, in form and
substance satisfactory to the issuer, that registration is not required for such
sale or transfer."

The Company may register, but shall not be obligated to register, the shares of
stock covered by any Options pursuant to the Securities Act. In the event such
shares are so registered, the Company may remove any legend on certificates
representing such shares. The Company shall not be obligated to take any
affirmative action in order to cause the exercise of an Option or the issuance
of shares pursuant thereto to comply with any law or regulation of any
governmental authority.

         9.4. Other Certificate Legends. The Company may endorse such other
legends upon the certificates for shares of Common Stock issued upon exercise of
an Option and may issue such "stop transfer" instructions to the transfer agent
for the Common Stock as the Committee may, in its discretion, determine to be
necessary or appropriate (a) to implement the provisions of this Plan and such
Option with respect to such shares and (b) to permit the Company to determine
the occurrence of a disqualifying disposition (as defined in Section 421(b) of
the Code) of shares issued upon exercise of Incentive Options.

         9.5. Employment Obligation. The granting of any Option shall not impose
upon the Company or any Affiliated Company any obligation to employ or continue
to employ any Option holder. The right of the Company and each Affiliated
Company to terminate the employment of any officer or other employee thereof
shall not be diminished or affected by reason of the fact that an Option has
been granted to such officer or other employee.

<PAGE>   9

SECTION 10. WITHHOLDING TAXES

         10.1. Rights of Company. The Company may require an employee exercising
a Nonqualified Option, or disposing of shares of Common Stock acquired pursuant
to the exercise of an Incentive Option in a disqualifying disposition (as
defined in Section 421(b) of the Code), to reimburse the Company or Affiliated
Company that employs such employee for any taxes required by any government to
be withheld or otherwise deducted and paid by such employer corporation with
respect to such issuance or disposition. In lieu thereof, the employer
corporation shall have the right to withhold the amount of such taxes from any
other sums due or to become due from such corporation to the employee upon such
terms and conditions as the Committee may prescribe. The employer corporation
may, in its discretion, hold the stock certificate to which such employee is
otherwise entitled upon the exercise of the Option as security for the payment
of any such withholding tax liability, until cash sufficient to pay that
liability has been received or accumulated.

         10.2. Notice of Disqualifying Disposition. Each holder of an Incentive
Option shall agree to notify the Company in writing immediately after making a
disqualifying disposition (as defined in Section 421(b) of the Code) of any
Common Stock purchased upon exercise of the Incentive Option.

SECTION 11. AMENDMENT OR TERMINATION OF PLAN

         11.1. Amendment. The Board may amend this Plan at any time and from
time to time, provided that no such amendment shall be made without the approval
of the stockholders of the Company if it would increase the total number of
shares issuable pursuant to this Plan (other than by operation of Section 8
hereof) or change in substance the provisions of Section 4 hereof relating to
eligibility to participate in the Plan. The rights and obligations under any
Option granted before amendment of this Plan or any unexercised portion of such
Option shall not be adversely affected by amendment of this Plan or such Option
without the consent of the Option holder.

         11.2. Termination. This Plan shall terminate as of the tenth
anniversary of its effective date. The Board may terminate this Plan at any
earlier time for any or no reason. No Option may be granted after the Plan has
been terminated. No Option granted while this Plan is in effect shall be altered
or impaired by termination of this Plan, except upon the consent of the Option
holder. The power of the Committee to construe and interpret this Plan and the
Options granted prior to the termination of this Plan shall continue after such
termination.

SECTION 12. NONEXCLUSIVITY OF PLAN

         Neither the Board's adoption of this Plan nor the submission of this
Plan to the Company's stockholders for their approval shall be construed as
creating any limitations on the Board's power to adopt such other incentive
arrangements as it may deem desirable, including the granting of stock options
otherwise than under this Plan, and such arrangements may be either applicable
generally or only in specific cases.

SECTION 13. EFFECTIVE DATE

         This Plan shall become effective upon its adoption by the Board,
provided that the stockholders of the Company shall have approved this Plan
within twelve months prior to or following such adoption by the Board.

<PAGE>   10

SECTION 14. PROVISIONS OF GENERAL APPLICATION

         14.1. Severability. The invalidity or unenforceability of any provision
of this Plan shall not affect the validity or enforceability of any other
provision of this Plan, each of which shall remain in full force and effect.

         14.2. Construction. The headings in this Plan are included for
convenience only and shall not in any way effect the meaning or interpretation
of this Plan. Any term defined in the singular shall include the plural, and
vice versa. The words "herein," "hereof" and "hereunder" refer to this Plan as a
whole and not to any particular part of this Plan. The word "including" as used
herein shall not be construed so as to exclude any other thing not referred to
or described.

         14.3. Further Assurances. The Company and any Option holder shall from
time to time execute and deliver any and all further instruments, documents and
agreements and do such other and further acts and things as may be required or
useful to carry out the intent and purpose of this Plan and such Option and to
assure to the Company and such Option holder the benefits contemplated by this
Plan; provided, however, that neither the Company nor any Option holder shall be
required in any event to take any action inconsistent with the provisions of
this Plan.

         14.4. Governing Law. This Plan and each Option shall be governed by the
laws of The Commonwealth of Massachusetts.

                                    * * * * *

<PAGE>   11
                                                Grant Date: ____________________

                             INCENTIVE STOCK OPTION

                                   GRANTED BY

                                  APERIO, INC.
                       (hereinafter called the "Company")

                                       TO

                       ----------------------------------
                        (hereinafter called the "Holder")

                                    UNDER THE

                1998 INCENTIVE AND NONQUALIFIED STOCK OPTION PLAN

         For valuable consideration, the receipt of which is hereby
acknowledged, the Company hereby grants to the Holder the following option:

         SECTION 1. Subject to the terms and conditions hereinafter set forth,
the Holder is hereby given the right and option to purchase from the Company an
aggregate of _____________ shares of the Common Stock, par value $.01 per share,
of the Company ("Common Stock"). The attached Schedule A, which provisions are
incorporated by reference herein, sets forth (a) the expiration date of this
Option, (b) the exercise price per share of Common Stock purchasable hereunder,
(c) the maximum number of shares that the Holder may purchase upon exercise
hereof, (d) the vesting rate and (e) certain other terms and conditions
applicable to this Option.

         This Option is and shall be subject in every respect to the provisions
of the Company's 1998 Incentive and Nonqualified Stock Option Plan, as the same
may be amended from time to time (the "Plan"). A copy of the Plan is being
delivered herewith, and the Plan is hereby incorporated herein by reference and
made a part hereof. In the event that the terms of this Option conflict or are
inconsistent with those of the Plan, the terms of the Plan shall govern. The
term "Committee" is used herein with the meaning ascribed to it in the Plan, and
may include the Board of Directors of the Company to the extent contemplated by
the Plan.

         The Holder may exercise this Option in whole or in part by delivering
to the Company a written notice (the "Notice of Exercise") setting forth the
number of shares to be purchased and payment in one of the following forms: (a)
cash or a check, bank draft or money order (postal or

<PAGE>   12
express) in an amount equal to the aggregate exercise price for the shares being
purchased; (b) with the consent of the Committee, shares of Common Stock having
a fair market value equal to such aggregate exercise price; (c) with the consent
of the Committee, a personal recourse note issued by the Holder to the Company
in a principal amount equal to such aggregate exercise price and with such other
terms, including interest rate and maturity, as the Committee may determine in
its discretion, provided that the interest rate borne by such note shall not be
less than the lowest applicable federal rate, as defined in Section 1274(d) of
the Internal Revenue Code of 1986, as amended; (d) with the consent of the
Committee, such other consideration that the Committee accepts and deems to have
a fair market value equal to such aggregate exercise price; or (e) with the
consent of the Committee, any combination of the foregoing. The "fair market
value" of the Common Stock shall equal (i) the closing price per share on the
date of grant of the Option, as reported by a nationally recognized stock
exchange, (ii) if the Common Stock is not listed on such an exchange, as
reported by the National Market System or another automated quotation system of
the National Association of Securities Dealers, Inc., or (iii) if the Common
Stock is not quoted on any such system, the fair market value as determined by
the Committee.

          SECTION 2. The Company, in its discretion, may file a registration
statement on Form S-8 under the Securities Act of 1933 to register shares of
Common Stock reserved for issuance under the Plan. If such a registration
statement is not in effect, then in order to exercise this Option, the Holder
must deliver to the Company a customary "investment letter" satisfactory to the
Company and its counsel stating that (a) the Holder is acquiring shares of
Common Stock subject to this Option for his or her own account for investment
and not with a view to the resale or distribution thereof and (b) the Holder
acknowledges that those shares are not freely transferable except in compliance
with federal and state securities laws.

         SECTION 3. As promptly as practicable after having received the Notice
of Exercise, a related investment letter and payment of the exercise price, the
Company shall deliver to the Holder (or if another is exercising this Option, to
such individual or individuals) a certificate registered in the name of the
Holder (or the name of the individual or individuals exercising the Option) and
representing the number of shares purchased upon exercise of this Option;
provided, however, that if any law or regulation or order of the Securities and
Exchange Commission or any other body having jurisdiction in the premises
requires the Company or the Holder (or the individual or individuals exercising
this Option) to take any action in connection with the shares being purchased,
then the delivery date of the certificate shall be extended to permit the time
necessary for such action to be taken and completed. The Company may imprint
upon said certificate the legends contemplated by Sections 9.3 and 9.4 of the
Plan or such other legends as counsel for the Company may consider appropriate.
The Company's delivery of the certificates for such shares shall be deemed
effected for all purposes when the Company or its stock transfer agent deposits
the certificates in the United States mail, addressed to the Holder, at the
address specified in the Notice. The Company will pay all fees or expenses
necessarily incurred by the Company in connection with the issuance and delivery
of shares pursuant to the exercise of this Option.

                                       2
<PAGE>   13
         At all times while any portion of this Option is outstanding, the
Company will reserve and keep available, out of shares of its authorized and
unissued Common Stock or shares of Common Stock held in treasury, a sufficient
number of shares of its Common Stock to satisfy the requirements of this Option.

         SECTION 4. If the Company shall effect any subdivision or consolidation
of shares of its stock or other capital readjustment, the payment of a stock
dividend, or other increase or reduction of the number of shares outstanding, in
any such case without receiving compensation therefor in money, services or
property, then the number, class and per share price of shares of stock subject
to this Option shall be adjusted appropriately in such a manner as to entitle
the Holder to receive upon exercise of this Option, for the same aggregate cash
consideration, the same total number and class of shares as he or she would have
received as a result of the event requiring the adjustment had he or she
exercised this Option in full immediately prior to such event.

          If the Company shall be a party to a reorganization or merger with one
or more other corporations (whether or not the Company is the surviving or
resulting corporation), shall consolidate with or into one or more other
corporations, shall be liquidated, or shall sell or otherwise dispose of
substantially all of its assets to another corporation (each a "Transaction"),
then:

                  (a) after the effective date of such Transaction this Option
         shall remain outstanding and (i) in the event that the Company is the
         surviving or resulting corporation of a merger or consolidation and
         none of the shares of Common Stock (or other security into which this
         option may be exercisable immediately prior to the effective date of
         such merger or consolidation) shall be changed into or exchanged for
         capital stock or other securities of the Company or of any other
         corporation or entity or cash or any other property, shall continue to
         be exercisable for shares of Common Stock or (ii) in all other cases,
         shall become exercisable for shares of such stock or other securities,
         cash or property as the holders of shares of Common Stock (or other
         security into which this Option may be exercisable immediately prior to
         the effective date of such Transaction) received pursuant to the terms
         of such Transaction;

                  (b) the Committee may accelerate the time for exercise of this
         Option to and after a date prior to the effective date of such
         Transaction, as specified by the Committee; or

                  (c) this Option may be canceled by the Committee as of the
         effective date of such Transaction, provided that (i) notice of such
         cancellation shall be given to the Holder, (ii) the Holder shall have
         the right to exercise this Option to the extent that the same is then
         exercisable or, if the Committee shall have accelerated the time for
         exercise of all outstanding Options, in full during the thirty-day
         period preceding the effective date of the Transaction.

                                       3
<PAGE>   14
         Except as hereinbefore expressly provided, the issue by the Company of
shares of stock of any class, or securities convertible into shares of stock of
any class, for cash or property, or for labor or services, either upon direct
sale or upon the exercise of rights or warrants to subscribe therefor, or upon
conversion of shares or obligations of the Company convertible into such shares
or other securities, shall not affect, and no adjustment by reason thereof shall
be made with respect to, the number or price of shares of Common Stock then
subject to this Option.

         SECTION 5. Neither the Holder nor any other person shall, by virtue of
the granting of this Option, be deemed for any purpose to be the owner of any
shares of Common Stock subject to this Option or to be entitled to the rights or
privileges of a holder of such shares unless and until this Option has been
exercised pursuant to the terms thereof with respect to such shares and the
Company has issued and delivered the shares to the Holder.

         SECTION 6. This Option is not transferable by the Holder or by
operation of law, otherwise than by will or under the laws of descent and
distribution.

         This Option is exercisable, during the Holder's lifetime, only by the
Holder, and by the Holder only while he or she is an employee of the Company or
an Affiliated Company (as defined in the Plan), except that in the event the
employment of the Holder by the Company and all Affiliated Companies terminates
other than for Cause and other than for death or permanent and total disability
(as defined in the Plan), the Holder shall have the right to exercise this
Option within thirty days after the latest date on which the Holder so ceases to
be an employee of the Company or any Affiliated Company (but not later than the
expiration date of this Option). As used in this Option, "Cause" shall mean a
determination by the Company (including the Board) or an Affiliated Company that
the Holder's employment with the Company or such Affiliated Company should be
terminated as a result of (i) a material breach by the Holder of any agreement
to which the Holder and the Company (or such Affiliated Company) are both
parties, (ii) any act (other than retirement) by the Holder that may have a
material and adverse effect on the business of the Company, such Affiliated
Company or any other Affiliated Company or on the Holder's ability to perform
services for the Company or such Affiliated Company, including the proven or
admitted commission of any crime (other than an ordinary traffic violation), or
(iii) any material misconduct or material neglect of duties by the Holder in
connection with the business or affairs of the Company or such Affiliated
Company.

         In the event of the death or permanent and total disability of the
Holder prior to the termination of the Holder's employment with the Company and
all Affiliated Companies and to the date of expiration of this Option, the
Holder, or in the event of death, the Holder's executors, administrators or any
individual or individuals to whom this Option is transferred by will or under
the laws of descent and distribution, as the case may be, shall have the right
to exercise this Option at any time within 180 days after the date of such death
or disability (but not after the expiration date of this Option) with respect to
the shares which were purchasable by the Holder at the date of his disability or
death.

                                       4
<PAGE>   15
         SECTION 7: The provisions of this Section 7 shall remain in effect
until such time, if ever, as the Company shall consummate an underwritten public
offering of shares of Common Stock pursuant to which the Company receives
aggregate proceeds of at least $10,000,000 pursuant to a registration statement
filed under the Securities Act of 1933, as amended, or any successor act, at
which time the provisions set forth in this Section 7 shall automatically
expire.

                  (a) As long as the Holder continues to be an employee of the
         Company or an Affiliated Company, the Holder shall not, without the
         prior written consent of the Company, sell, assign or otherwise
         transfer all or any part of the shares of Common Stock acquired under
         this Option except to the Company or an Affiliated Company.

                  (b) After the Holder is no longer an employee of the Company
         or any Affiliated Company, the Holder shall be entitled to sell, assign
         or otherwise transfer any shares of Common Stock acquired upon exercise
         of this Option subject to the Company's right of first refusal
         described in this subsection and to the provisions of Section 7(c).

                        (i) If, after the Holder ceases to be so employed, he or
                  she wishes to accept an offer to purchase or otherwise wishes
                  to transfer all or any part of the shares acquired upon
                  exercise of this Option (including any securities received in
                  respect thereof pursuant to Section 4), the Holder shall (A)
                  obtain from the offeror an irrevocable and unconditional bona
                  fide offer in writing (the "Written Offer"), which offer shall
                  set forth the name and address of the offeror, the number of
                  shares to be acquired, and the purchase price and other terms
                  of the offer, and (B) provide a copy of the Written Offer to
                  the Company, together with a statement that the Holder desires
                  to accept the offer.

                        (ii) The Company shall have thirty days after receiving
                  a copy of the Written Offer to notify the Holder in writing of
                  the Company's desire to purchase all or any part of the shares
                  subject to the Written Offer, at the same price per share and
                  terms (other than purchase date) as stated in the Written
                  Offer. The Company's purchase of any such shares shall be
                  consummated, at the option of the Company, within thirty days
                  after its delivery of such notice, on a date mutually
                  acceptable to the Company and the Holder.

                        (iii) To the extent the Company does not elect, pursuant
                  to the preceding subsection (ii), to purchase any of the
                  shares subject to the Written Offer, the Holder shall be
                  entitled to sell those shares in accordance with the terms of
                  the Written Offer at any time between the thirtieth and the
                  sixtieth days following the date on which the Holder delivered
                  a copy of the Written Offer to the Company, provided that the
                  Holder shall not be entitled to consummate such sale (A) if
                  the offer or under the Written Offer is a competitor of the
                  Company and the Company delivers written notice to the Holder,
                  within thirty days of its receipt of a copy of the Written
                  Offer, stating that the Holder shall not sell shares pursuant
                  to the

                                       5
<PAGE>   16
                  Written Offer or (B) unless the offeror under the Written
                  Offer has executed an agreement in favor of the Company
                  pursuant to which the offeror agrees to be subject to the
                  restrictions set forth in this subsection (b) and in Section
                  8.

                  (c) With respect to any shares purchased by the Holder upon
         execution of this Option, the Company shall have the right, but not the
         obligation, to repurchase from the Holder (or his or her legal
         representatives) all or some of such shares, (including any securities
         received in respect thereof pursuant to Section 4), upon the occurrence
         of one or more of the following events ("Trigger Events"):

                             (A) the termination of the Holder's employment with
                        the Company and all Affiliated Companies, voluntarily or
                        involuntarily, for any reason whatsoever, or the death
                        or permanent and total disability of the Holder;

                             (B) a receivership, bankruptcy or other creditor's
                        proceeding regarding the Holder, or a taking of any of
                        the shares acquired upon exercise of this Option by
                        legal process, such as a levy of execution; or

                             (C) a distribution of any of the shares acquired
                        upon exercise of this Option to the Holder's spouse as
                        such spouse's joint or community interest pursuant to a
                        decree of dissolution, operation of law, divorce,
                        property settlement agreement or for any other reason,
                        except as agreed to by the Company in writing.

         The repurchase price for any shares repurchased pursuant to this
Section 7(c) shall be equal the fair market value of the shares (as defined in
Section 1), provided that if the Company's repurchase right results from the
termination of Holder's employment for Cause, then the repurchase price shall
equal the lesser of the aggregate exercise price paid by the Holder with respect
to such shares and the fair market value of the shares. The Company may exercise
its repurchase right during the following periods: (y) for shares acquired by
the Holder prior to such Trigger Event, within sixty (60) days after the Company
received actual knowledge of the Trigger Event or (z) for shares acquired by the
Holder after such Trigger Event, sixty (60) days following the later of the date
of such exercise and the date the Company receives actual knowledge of the
Trigger Event.

                        (i) The Company shall exercise its repurchase right with
                  respect to those shares it intends to repurchase by delivering
                  to the Holder (or his or her legal representatives), on or
                  before the last day of the applicable period set forth in
                  clause (y) or (z) above, a written notice of its intention to
                  exercise such right and payment of the repurchase price. The
                  Company shall make such payment by delivering to the Holder
                  (1) a cash payment in an amount equal to the repurchase price;
                  (2) a promissory note of the Company in an amount equal to the
                  repurchase price or (3) a cash payment in an amount equal to a
                  portion of the repurchase

                                       6
<PAGE>   17
                  price and a promissory note of the Company in an amount equal
                  to the difference between the repurchase price and such cash
                  payment. If the Company elects to pay the repurchase price
                  either in full or in part by the issuance of a promissory note
                  of the Company, such promissory note shall be payable in not
                  more than three annual installments of principal with simple
                  interest on the unpaid principal balance payable quarterly at
                  the rate of interest equal to the prime rate as reflected in
                  The Wall Street Journal on the date of the Repurchase. The
                  first such installment shall be due and payable on the first
                  day of the first full fiscal quarter following the date of the
                  repurchase. In exercising its repurchase right, the Company
                  may designate one or more nominees, either within or without
                  the Company, to purchase such shares. Upon the Company's
                  timely exercise of its right, the Holder (or his or her legal
                  representatives) shall deliver to the Company the stock
                  certificate or certificates representing the shares being
                  repurchased, duly endorsed and free and clear of any and all
                  liens, charges and encumbrances.

                        (ii) If the Company does not repurchase any shares under
                  this repurchase right, then the Holder (or any successor in
                  interest) shall hold such shares in his or her possession,
                  subject to the provisions of this Section 7 and Section 8.

                  (d) If the Holder fails or refuses to deliver on a timely
         basis the duly endorsed certificates representing shares to be
         repurchased by the Company pursuant to Section 7(c), then the Company
         shall have the right to deposit the repurchase price for such shares in
         a special account with any bank or trust company in The Commonwealth of
         Massachusetts, giving notice of such deposit to the Holder, whereupon
         such shares shall be deemed to have been purchased by the Company. All
         such monies, if any, shall be held by the bank or trust company for the
         benefit of the Holder. All monies deposited with the bank or trust
         company but remaining unclaimed for two years after the date of deposit
         shall be repaid by the bank or trust company to the Company on demand,
         and the Holder shall thereafter look only to the Company for payment.
         No such monies, whether deposited with a bank or trust company or after
         repaid to the Company, shall bear interest or other income for the
         benefit of the Holder. The Company may imprint a legend on any stock
         certificate delivered to the Holder reflecting the restrictions on
         transfer provided in Section 7.

         SECTION 8. The Holder agrees that, during the 270-day period commencing
with the closing date of the Company's initial public offering of shares of
Common Stock pursuant to a registration statement filed under the Securities Act
of 1933, as amended, or any successor act, the Holder will not, without the
prior written consent of the representative or representatives of the
underwriters of such offering, directly or indirectly, sell, offer to sell,
contract to sell, grant any option for the sale of, assign, transfer, pledge,
hypothecate or otherwise dispose of or encumber any shares of Common Stock
acquired upon exercise of this Option, other than such shares, if any, as shall
be covered by such registration statement or as shall be consented to by

                                       7
<PAGE>   18
the Company and such representative or representatives. The Holder further
agrees that, in order to facilitate any such public offering, (a) the agreements
in this Section 8 shall be for the benefit of such underwriters as well as the
Company and (b) upon request of such representative or representatives, the
Holder will execute a separate written instrument to the effect set forth in the
preceding sentence, with such changes therein as such representative or
representatives may request, provided that such changes are not materially
adverse to the interest of the Holder.

         SECTION 9. The Holder agrees to notify the Company in writing
immediately after making a Disqualifying Disposition of any shares of Common
Stock received pursuant to the exercise of this Option. A "Disqualifying
Disposition" shall have the meaning specified in Section 421(b) of the Internal
Revenue Code of 1986, as amended, or any successor provision; as of the
effective date of the Plan, a Disqualifying Disposition is any disposition
(including any sale) of such shares occurring before the later of (a) the second
anniversary of the date of grant of this Option and (b) the first anniversary of
the date on which the Holder acquired such shares by exercising this Option,
provided that such holding period requirements shall terminate upon the death of
the Holder. The Holder also agrees to provide the Company with any information
that the Company shall request concerning any such Disqualifying Disposition.
The Holder acknowledges that he or she will forfeit the favorable income tax
treatment otherwise available with respect to the exercise of this Option if he
or she makes a Disqualifying Disposition of shares received upon exercise of
this Option.

         The Holder agrees that if the Company in its discretion determines that
it is obligated to withhold tax with respect to a Disqualifying Disposition of
shares of Common Stock received upon exercise of this Option, then the Company
may withhold the appropriate amount of federal, state or local withholding taxes
attributable to such Disqualifying Disposition. If any portion of this Option is
treated as a Nonqualified Option (as defined in the Plan), the Holder hereby
agrees that the Company may withhold the appropriate amount of federal, state
and local withholding taxes attributable to the Holder's exercise of such
Nonqualified Option. At the Company's discretion, the amount required to be
withheld may be withheld in cash from such wages or (with respect to
compensation income attributable to the exercise of this Option) in kind from
the Common Stock otherwise deliverable to the Holder on exercise of this Option.
The Holder further agrees that, if the Company does not withhold an amount
sufficient to satisfy the Company's withholding obligation, the Holder will
reimburse the Company on demand, in cash, for the amount underwithheld.

         SECTION 10. Any notice to be given to the Company hereunder shall be
deemed sufficient if addressed to the Company and delivered at the office of the
President of the Company, or to such other address as the Company may hereafter
designate, or when deposited in the mail, postage prepaid, addressed to the
attention of the President of the Company at such office or other address.

         Any notice to be given to the Holder hereunder shall be deemed
sufficient if addressed to and delivered in person to the Holder at his address
furnished to the Company or when deposited in the mail, postage prepaid,
addressed to the Holder at such address.

                                       8
<PAGE>   19
         SECTION 11. This Option is subject to all laws, regulations and orders
of any governmental authority which may be applicable thereto and,
notwithstanding any of the provisions hereof, the Holder agrees that he will not
exercise the Option granted hereby nor will the Company be obligated to issue
any shares of stock hereunder if the exercise thereof or the issuance of such
shares, as the case may be, would constitute a violation by the Holder or the
Company of any such law, regulation or order or any provision thereof.

                                       9
<PAGE>   20
         IN WITNESS WHEREOF, the Company has caused this instrument to be
executed in its name and on its behalf as of the date of grant.

                                              APERIO, INC.

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

                                              Its:
                                                  ------------------------------
ATTEST:
       ---------------------------

Secretary
         -------------------------

                                       10
<PAGE>   21
                                                                      Schedule A
                                                                      ----------

                                  APERIO, INC.
                             INCENTIVE STOCK OPTION
                             ----------------------

Date of Grant:

Name of Holder:

Address:

Social Security Number:

Maximum number of shares for which this Option is exercisable:

Exercise (purchase) price per share:

Expiration date of this Option:

Vesting Rate:

Other terms and conditions:

The undersigned Holder acknowledges receipt of the Option of which this Schedule
A is a part and agrees to be bound by all obligations of the Holder as set forth
in such Option or in the Plan, including the provisions of Sections 7 and 8 of
the Option relating to the Company's right to repurchase the shares acquired
upon exercise of this Option and otherwise restricting the transfer of such
shares.

                               Holder's Signature
                                                 -------------------------------

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