PERFORMANCE TECHNOLOGIES INC \DE\
S-3/A, 2000-01-28
PRINTED CIRCUIT BOARDS
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AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 28, 2000
REGISTRATION NO. 333-94371


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                              --------------------
                                 AMENDMENT NO. 1
                                       TO
                                   FORM S-3/A
                              --------------------

                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933
                     PERFORMANCE TECHNOLOGIES, INCORPORATED
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

      Delaware                                   16-1158413
(State Other Jurisdiction of                    (IRS Employer
Incorporation or Organization)               Identification No.)


                               315 SCIENCE PARKWAY
                            ROCHESTER, NEW YORK 14620
                                 (716) 256-0200
    (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                  OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)

                                -----------------
                                DONALD L. TURRELL
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                     PERFORMANCE TECHNOLOGIES, INCORPORATED
                               315 SCIENCE PARKWAY
                            ROCHESTER, NEW YORK 14620
                                 (716) 256-0200
            (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)

                                    Copy to:
                             JEFFREY H. BOWEN, ESQ.
                           HARTER, SECREST & EMERY LLP
                                700 MIDTOWN TOWER
                            ROCHESTER, NEW YORK 14604
                                 (716) 232-6500
                                 ----------------

         Approximate  date of commencement of proposed sale to the public:  From
time to time after this Registration Statement becomes effective.

         If the only securities  being registered on this Form are being offered
to dividend or interest reinvestment plans, please check the following box. [ ]

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

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

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

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



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

                                2,165,732 SHARES

                     PERFORMANCE TECHNOLOGIES, INCORPORATED
                                  COMMON STOCK
                              --------------------

         This Prospectus  relates to the public offering of 2,165,732  shares of
our  Common  Stock,  par  value  $.01  per  share.  This  offering  will  not be
underwritten. All 2,165,732 shares may be offered by certain of our stockholders
or by pledgees,  donees, transferees or other successors in interest who receive
the  shares  as a gift,  partnership  distribution  or  other  non-sale  related
transfer.  All of these shares were  originally  issued in  connection  with the
acquisition of MicroLegend Telecom Systems Inc., a Canadian company, through the
acquisition  of  MicroLegend's   outstanding  capital  stock.  As  part  of  the
acquisition,  MicroLegend  became a  wholly-owned  subsidiary of 3688283  Canada
Inc., which is our wholly-owned Canadian subsidiary.  The issuance of the shares
was exempt from  registration  under Section 4(2) of the Securities Act of 1933,
as amended.  We are  registering the shares pursuant to Section 7.1 of the Share
Acquisition  Agreement by and among us, our  subsidiary,  MicroLegend and two of
the principal stockholders of MicroLegend.

         The  shares  we  are   registering   may  be  offered  by  the  selling
stockholders from time to time in transactions in the  over-the-counter  market,
in negotiated  transactions,  or in a combination  of such methods of sale.  The
shares may be offered at fixed  prices  that may be  changed,  at market  prices
prevailing at the time of sale, at prices related to prevailing market prices or
at negotiated prices.  The selling  stockholders may effect such transactions by
selling the shares to or through  broker-dealers,  and such  broker-dealers  may
receive  compensation in the form of discounts,  concessions or commissions from
the  selling  stockholders  and/or  the  purchasers  of the shares for whom such
broker-dealers  act as agents or to whom they sell as principals,  or both. This
compensation  might  be  in  excess  of  customary   commissions.   For  further
information, see the section entitled "Plan of Distribution" below.

         We will not receive any of the proceeds  from the sale of these shares.
We have agreed to bear certain  expenses in connection with the  registration of
the shares being offered and sold by the selling stockholders.  Our Common Stock
is quoted on the Nasdaq  National  Market under the symbol "PTIX." On January 7,
2000 the average of the high and low bid price for the Common Stock was $16.469.

         Our  principal  executive  office is  located at 315  Science  Parkway,
Rochester, New York 14620. Our telephone number is (716) 256-0200.

                               -------------------
         The  selling   stockholders  and  any  broker-dealers  or  agents  that
participate with the selling  stockholders in the distribution of the shares may
be deemed to be  "underwriters"  within  the  meaning  of  Section  2(11) of the
Securities Act of 1933, and any  commissions  received by them and any profit on
the  resale of the  shares  purchased  by them may be deemed to be  underwriting
commissions or discounts under the Securities Act of 1933.

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

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

         This offering of our Common Stock involves  certain risks.  For further
information, please see the section entitled "Risk Factors."
                The date of this Prospectus is February 1, 2000



<PAGE>


                                  RISK FACTORS

         We Must Successfully Manage  Technological  Change and the Introduction
of New Products.  The market for the SS7  inter-networking  products produced by
MicroLegend  are  characterized  by  rapid  technological  change  and  frequent
introduction  of  products  based on new  technologies.  As these  products  are
introduced,  the  standards of the industry  change.  Additionally,  the overall
computer networking industry is volatile as the effects of new technologies, new
standards,  new  products  and short life  cycles  contribute  to changes in the
industry and the  performance  of industry  participants.  Our future revenue in
this market will depend upon our ability to anticipate  technological change and
to develop and introduce enhanced products on a timely basis that meet or exceed
new industry standards.  New product introductions could contribute to quarterly
fluctuations in operating results as orders for new products commence and orders
for existing products decline. Moreover,  significant delays can occur between a
product's introduction and commencement of volume production. If we are not able
to develop and manufacture new products in a timely manner,  if we have problems
with  reliability,  quality or  availability  of our products or their component
parts, or if we fail to achieve market acceptance for our products, our revenues
and operating results may be adverse effected.

         We Must Deal Effectively  with  Competition.  The SS7  inter-networking
business  is  extremely  competitive.  We  face  competition  from a  number  of
established and emerging computer  communications  and  inter-networking  device
companies.  While  MicroLegend  is  currently  the leading SS7  inter-networking
provider,  many of our principal  competitors also have  established  brand name
recognition and market  positions and may have greater  experience and financial
resources to spend for promotion,  advertising, research and product development
than we have. Several of these competitors have recently introduced or announced
their  intentions  to introduce new  competitive  products.  In addition,  as we
broaden our product  offerings,  we may face  competition  from new competitors.
Companies in related markets could offer products with functionality  similar or
superior to that offered by our products.  Increased competition could result in
price  reductions,  reduced margins and loss of market share, all of which would
materially and adversely affect our revenue and operating results.  There can be
no assurance that we will be able to compete  successfully  with our existing or
new competitors or that competitive  pressures we face in this industry will not
have a material adverse effect on our revenue and operating results.

         We are Dependent on Several Key  Customers in the SS7  Inter-networking
Market.  There can be no assurance  that the principal  customers of MicroLegend
will  continue  to  purchase  products  from  us at  current  levels.  Customers
typically  did  not  enter  into  long-term   volume  purchase   contracts  with
MicroLegend. In addition,  MicroLegend's customers have certain rights to extend
or delay the shipment of their orders.  The loss of one or more of MicroLegend's
major customers,  and the reduction,  delay or cancellation of orders or a delay
in shipment of products to such customers  would have a material  adverse effect
on our revenue and operating results.

         We May  Experience  Fluctuations  in Annual and Quarterly  Results.  In
relation  to  the  product  lines  and  business  acquired  as a  result  of the
MicroLegend  acquisition,  our annual and quarterly operating results may in the
future vary  significantly  depending on factors such as the timing and shipment
of significant  orders,  new product  introductions  by us and our  competitors,
market acceptance of new and enhanced  versions of our products,  changes in our
pricing policies and those of our competitors,  the mix of distribution channels
through which our products are sold, our inability to obtain sufficient supplies
of sole or limited  source  components  for our  products,  seasonal and general
economic conditions.

         We are Dependent on Third Party Component Suppliers. Certain components
used in  MicroLegend's  products  are  currently  available  only  from one or a
limited number of sources.  Although prior to the  acquisition  MicroLegend  was
generally able to obtain adequate supplies of these components,  there can be no
assurance  that  future  supplies  will be  adequate  for our  needs  or will be
available on acceptable  prices and terms. Our inability in the future to obtain
sufficient  limited-source  components, or to develop alternative sources, could
result in delays in product  introduction or shipments,  and increased component
prices could  negatively  affect our gross margins,  either of which will have a
material adverse effect on our revenue and operating results.

         We are  Dependent  on  Proprietary  Technology.  Our success in the SS7
inter-networking  business depends upon our proprietary  technologies.  Prior to
the acquisition,  MicroLegend relied  principally upon trademark,  copyright and
trade secret laws to protect its proprietary technologies. MicroLegend generally
entered  into  confidentiality  or  license  agreements  with its  distributors,
customers and potential  customers and limited access to and distribution of the
source code to its software  and other  proprietary  information.  MicroLegend's
employees were subject to its employment  policy regarding  confidentiality.  We
will  maintain  similar  standards  and  enforce  similar  safeguards  of former
MicroLegend  proprietary  technology  in the  future.  However,  there can be no
assurance  that the steps taken in this regard by  MicroLegend in the past or us
in the future will be adequate to prevent  misappropriation  of our technologies
or to provide an effective remedy in the event of a misappropriation by others.

         Although our  management  believes that our products and those produced
by MicroLegend do not infringe on the proprietary rights of third parties, there
can be no assurance that infringement claims will not be asserted,  resulting in
costly litigation in which we may not ultimately prevail. Adverse determinations
in such litigation could result in the loss of our proprietary  rights,  subject
us to significant liabilities, require us to seek licenses from third parties or
prevent us from manufacturing or selling our products,  any of which will have a
material adverse effect on our revenue and operating results.

         Because of the  existence  of a large number of patents in the computer
networking  industry  and the  rapid  rate of  issuance  of new  patents  or new
standards or to obtain  important new technology,  it may be necessary for us to
enter into technology licenses from others. There can be no assurance that these
third  party  technology  licenses  will  be  available  to us  on  commercially
reasonable  terms.  The loss of or inability  to obtain any of these  technology
licenses  could result in delays or  reductions in product  shipments.  Any such
delays or reductions in product shipments will have a material adverse effect on
the our revenue and operating results.

         We are Dependent on Certain Key MicroLegend  Personnel.  Our success in
the SS7  inter-networking  business  depends on the continued  contributions  of
certain key MicroLegend  personnel,  many of whom would be difficult to replace.
It will also  depend on our  ability to attract  and retain  skilled  employees.
Although  our  employees  are  subject  to  our  employment   policy   regarding
confidentiality and ownership of inventions, employees are not otherwise subject
to employment  agreements  or  non-competition  covenants.  Changes in personnel
could adversely affect our operating results.

                              AVAILABLE INFORMATION

         No person has been  authorized to give any  information  or to make any
representations other than those contained in this Prospectus in connection with
this offering of our Common Stock.  If any such  information or  representations
are given or made, such information or  representations  must not be relied upon
as having  been  authorized  by us, by any selling  stockholder  or by any other
person.  Neither the  delivery of this  Prospectus  nor any sale made  hereunder
shall, under any  circumstances,  create any implication that information herein
is correct as of any time  subsequent to the date hereof.  This  Prospectus does
not  constitute  an  offer  to sell or a  solicitation  of an  offer  to buy any
security  other than the Common Stock  covered by this  Prospectus,  nor does it
constitute  an offer to or  solicitation  of any person in any  jurisdiction  in
which such offer or solicitation may not lawfully be made.

         We are  subject to the  informational  requirements  of the  Securities
Exchange  Act of  1934,  as  amended.  As a  result,  we  files  reports,  proxy
statements, information statements and other information with the Securities and
Exchange  Commission  (the "SEC").  You may inspect and copy any reports,  proxy
statements  and other  information  that we file at the  Public  Reference  Room
maintained by the SEC at 450 Fifth Street, N.W., Washington, D.C. 20549. You can
obtain copies of such  materials by mail from the Public  Reference  Room of the
SEC at Room 1024, 450 Fifth Street, N.W.,  Washington,  D.C. 20549 at prescribed
rates. You may obtain  information on the operation of the Public Reference Room
by calling the SEC at  1-800-SEC-0330.  The SEC  maintains a World Wide Web site
that contains  reports,  proxy and information  statements and other information
regarding  registrants that file electronically with the SEC. The address of the
SEC's web site is  http://www.sec.gov.  Our Common Stock is quoted on the Nasdaq
National  Market,  and such  material  may also be  inspected  at the offices of
Nasdaq Operations, 1735 K Street N.W. Washington, D.C. 20006.

         We  have  filed  with  the SEC a  Registration  Statement  on Form  S-3
(together with all amendments  and exhibits,  referred to in this  Prospectus as
the  "Registration  Statement") under the Securities Act of 1933 with respect to
the Common Stock we are offering.  This Prospectus  does not contain,  nor is it
required  to  contain,  all of the  information  set  forth in the  Registration
Statement,  certain parts of which are omitted in accordance  with the rules and
regulations  of the SEC.  For further  information  regarding  us and our Common
Stock,  you should  refer to the  Registration  Statement  and its  exhibits and
schedules. The Registration Statement, including its exhibits and schedules, may
be inspected as described above.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         The following  documents filed with the SEC (File No. 0-27460) pursuant
to the Securities Exchange Act of 1934 are incorporated herein by reference:

1. Our Annual  Report on Form 10-K for the fiscal year ended  December 31, 1998,
filed March 30,  1999;  2. Our  Quarterly  Reports on Form 10-Q for the quarters
ended March 31, June 30, and September  30, 1999; 3. Our Current  Report on Form
8-K filed on December 21, 1999;  4. The  description  of our Common  Stock,  par
value $.01 per share,  contained in our Registration Statement on Form S-1 filed
on January 18, 1996  including  any amendment or report filed for the purpose of
updating such  description;  and 5. All reports and other  documents filed by us
pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of
1934  subsequent to the date of this  Prospectus and prior to the termination of
this offering.

         Any statement contained in a document  incorporated by reference herein
shall be deemed to be  incorporated  by reference in this  Prospectus  and to be
part hereof from the date of filing of such documents. Any statement modified or
superseded  shall  not be  deemed,  except  as so  modified  or  superseded,  to
constitute  a part of this  Prospectus.  We will  provide to you upon written or
oral request and without charge a copy of any or all of such documents which are
incorporated  herein by reference  (other than exhibits to such documents unless
such exhibits are specifically incorporated by reference into the documents that
this Prospectus incorporates). Written requests for copies should be directed to
Dorrance W. Lamb, Vice President of Finance, at our principal executive offices:
Performance Technologies,  Incorporated 315 Science Parkway, Rochester, New York
14620. Our telephone number is (716) 256-0200.

                                   THE COMPANY

         Our  principal  executive  offices are located at 315 Science  Parkway,
Rochester, New York 14620. Our telephone number is (716) 256-0200.

                              PLAN OF DISTRIBUTION

         We will receive no proceeds from this  offering.  The shares offered by
this  Prospectus  may be sold by the selling  stockholders  from time to time in
transactions in the over-the-counter market, in negotiated transactions, or in a
combination  of such methods of sale,  at fixed prices which may be changed,  at
market prices  prevailing  at the time of sale, at prices  related to prevailing
market prices or at negotiated prices. The selling  stockholders may effect such
transactions  by  selling  the  shares to or  through  broker-dealers,  and such
broker-dealers may receive compensation in the form of discounts, concessions or
commissions  from the selling  stockholders  and/or the purchasers of the shares
for  whom  such  broker-dealers  may  act as  agents  or to  whom  they  sell as
principals,  or  both.  This  compensation  might  be  in  excess  of  customary
commissions.  The shares we are  offering  may be sold  either  pursuant to this
Registration  Statement  or  pursuant  to Rule 144  issued  by the SEC under the
Securities Act of 1933.

         In order to comply  with the  securities  laws of  certain  states,  if
applicable,  the  shares  will  be  sold  in  such  jurisdictions  only  through
registered or licensed  brokers or dealers.  In addition,  in certain states the
shares may not be sold unless they have been registered or qualified for sale in
the applicable  state or an exemption  from the  registration  or  qualification
requirement is available and is complied with.

         The  selling   stockholders  and  any  broker-dealers  or  agents  that
participate with the selling  stockholders in the distribution of the shares may
be deemed to be "underwriters" within the meaning of the Securities Act of 1933,
and any commissions  received by them and any profit on the resale of the shares
purchased  by them may be deemed to be  underwriting  commissions  or  discounts
under federal law.

         Under applicable  federal rules and regulations,  any person engaged in
the  distribution  of our Common Stock may not  simultaneously  engage in market
making  activities with respect to our Common Stock for a period of two business
days prior to the commencement of such  distribution.  In addition,  and without
limiting the foregoing,  each selling  stockholder will be subject to applicable
provisions of the Securities  Exchange Act of 1934 and the rules and regulations
of the SEC  promulgated  thereunder.  These rules include,  without  limitation,
Rules  10b-6 and  10b-7,  which may limit the timing of  purchases  and sales of
shares of our Common Stock by the selling stockholders.

                              SELLING STOCKHOLDERS

         The  following  table sets  forth the number of shares of Common  Stock
owned by each of the selling stockholders.  Except for Thomas Blain and Reginald
T. Cable,  each of whom is an officer of  MicroLegend  Telecom  Systems  Inc., a
company which is now one of our affiliates,  none of these selling  stockholders
has had a material  relationship  with us within the past three years other than
as a  result  of  the  ownership  of  our  Common  Stock.  Because  the  selling
stockholders  may offer all or some of the Common Stock which they hold pursuant
to the offering contemplated by this Prospectus, and because there are currently
no agreements, arrangements or understandings with respect to the sale of any of
the  shares,  no  estimate  can be given as to the amount of shares that will be
held by the selling  stockholders after completion of this offering.  The shares
offered  by this  Prospectus  may be  offered  from time to time by the  selling
stockholders named below or by pledgees, donees, transferees or other successors
in interest who receive the shares as a gift, partnership  distribution or other
non-sale related transfer.

<TABLE>
<CAPTION>
<S>                  <C>                  <C>                <C>
                     Number of Shares     Percent of         Number of Shares
Name of Selling      Beneficially         Outstanding        Registered for
Stockholder          Owned                Shares             Sale Hereby (1)
- ------------------   ----------------     -----------        -----------------
3414850 Canada Inc.    994,294               7.4%              994,294
2384434 Canada Inc.    994,293               7.4%              994,293
Thomas Blain            60,059               *                  60,059
Reginald T. Cable       60,059               *                  60,059
Philippe Tanguay         2,267               *                   2,267
Louis C. Ferland         5,086               *                   5,086
Kerry Keirstead            932               *                     932
Yuqiang Zhang            1,012               *                   1,012
R. Michael Hasson       10,490               *                  10,490
Peter Butler             1,881               *                   1,881
Normand Glaude          10,490               *                  10,490
Michael Gaines           3,496               *                   3,496
Marc Labonte             4,874               *                   4,874
Kim Keirstead            4,238               *                   4,238
Eric A. Schmidt          1,958               *                   1,958
Egan Cheung                456               *                     456
Jean Brisard             2,575               *                   2,575
Songling Yang              834               *                     834
Brian Gregory Holmes       710               *                     710
Cindi Viegas               477               *                     477
Robert G. Mason          2,119               *                   2,119
Kelly W. Porter            318               *                     318
Clark Lee                1,033               *                   1,033
Paulette Gregory           318               *                     318
Michael Whiten             668               *                     668
Lee Christensen            371               *                     371
Andrew L. Booth            424               *                     424
                     ---------             --------          ---------
Total                2,165,732              16.4%            2,165,732
                     =========             ========          =========

</TABLE>


* Represents beneficial ownership of less than 1%.

(1) This  Registration  Statement shall also cover any additional  shares of our
Common  Stock  which  become  issuable  in  connection  with  the  Common  Stock
registered  for sale  hereby  by  reason of any  stock  dividend,  stock  split,
recapitalization  or other similar  transaction  effected without the receipt of
consideration  which  results in an  increase  in the number of our  outstanding
shares of Common Stock.

                                  LEGAL MATTERS

         The validity of the  securities  offered hereby will be passed upon for
us by Harter, Secrest & Emery LLP, Rochester, New York.

                                     EXPERTS

         Our  consolidated  balance  sheets as of December 31, 1997 and December
31, 1998 and our consolidated  statements of income, retained earnings, and cash
flow  for  each of the  three  years  in the  period  ended  December  31,  1998
incorporated by reference in this Prospectus,  have been incorporated  herein in
reliance on the report of  PriceWaterhouseCoopers  LLP, independent accountants,
given on the authority of that firm as experts in accounting and auditing.



<PAGE>


                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

         The  following  table  sets  forth the costs and  expenses,  other than
underwriting  discounts and  commissions,  payable by Performance  Technologies,
Incorporated  (the  "Company") in connection with the sale of Common Stock being
registered. All amounts are estimates except the SEC registration fee.


             SEC Registration Fee                                       $ 9,690
             Legal fees and expenses                                     15,000
             Accounting fees and expenses                                10,000
             Miscellaneous                                                5,000
                                                                         ------
             Total                                                      $39,690
                                                                        =======


ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS

        With respect to indemnification  of directors and officers,  Section 145
of the Delaware  General  Corporation  Law ("DGCL")  provides that a corporation
shall  have  the  power  to  indemnify  any  person  who was or is a party or is
threatened to be made a party to any  threatened,  pending or completed  action,
suit or proceeding,  whether civil,  criminal,  administrative  or investigative
(other  than an action by or in the right of the  corporation)  by reason of the
fact that the person is or was a  director,  officer,  employee  or agent of the
corporation,  or is or was  serving  at the  request  of  the  corporation  as a
director, officer, employee or agent of another corporation,  partnership, joint
venture,  trust or other  enterprise,  against  expenses  (including  attorneys'
fees),  judgments,  fines and amounts paid in settlement actually and reasonably
incurred by the person in connection  with such action,  suit or proceeding,  if
the person acted in good faith and in a manner the person reasonably believed to
be in or not opposed to the best interests of the corporation, and, with respect
to any criminal  action or  proceeding,  had no reasonable  cause to believe the
person's conduct was unlawful. Under this provision of the DGCL, the termination
of any action, suit or proceeding by judgment, order, settlement, conviction, or
upon a plea of nolo contendere or its equivalent, shall not, of itself, create a
presumption  that the person did not act in good faith and in a manner which the
person reasonably  believed to be in or not opposed to the best interests of the
corporation,  and  with  respect  to any  criminal  action  or  proceeding,  had
reasonable cause to believe that the person's conduct was unlawful.

        Furthermore,  the DGCL provides that a corporation  shall have the power
to  indemnify  any  person who was or is a party or is  threatened  to be made a
party to any threatened,  pending or completed action or suit by or in the right
of the corporation to procure a judgment in its favor by reason of the fact that
the person is or was a director,  officer, employee or agent of the corporation,
or is or was serving at the request of the  corporation as a director,  officer,
employee or agent of another corporation,  partnership,  joint venture, trust or
other  enterprise,  against  expenses  (including  attorneys' fees) actually and
reasonably  incurred by the person in connection  with the defense or settlement
of such  action or suit if the  person  acted in good  faith and in a manner the
person reasonably  believed to be in or not opposed to the best interests of the
corporation and except that no  indemnification  shall be made in respect of any
claim,  issue or matter as to which such person  shall have been  adjudged to be
liable  to the  corporation  unless  and only to the  extent  that the  Court of
Chancery or the court in which such action or suit was brought  shall  determine
upon application that,  despite the adjudication of liability but in view of all
the circumstances of the case, such person is fairly and reasonably  entitled to
indemnity  for such  expenses  which the Court of  Chancery  or such other court
shall deem proper.

        The Company's Restated Certificate of Incorporation (the "Certificate of
Incorporation")  and By-laws,  as amended (the "By-laws") provide for limitation
of the  liability  of  directors  to the  Company and its  stockholders  and for
indemnification  of  directors,  officers,  employees and agents of the Company,
respectively, to the maximum extent permitted by the DGCL.

        The Certificate of Incorporation  provides that directors are not liable
to the  Company  or its  stockholders  for  monetary  damages  for  breaches  of
fiduciary  duty as a director,  except for  liability  (a) for any breach of the
director's duty of loyalty to the Company or its  stockholders,  (b) for acts or
omissions not in good faith or that involve intentional  misconduct or a knowing
violation of law, (c) for dividend payments or stock repurchases in violation of
Delaware  law, or (d) for any  transaction  from which the director  derived any
improper personal benefit.

        The By-laws  include  provisions by which the Company will indemnify its
officers and directors and other persons against expenses,  judgments, fines and
amounts  paid in  settlement  with respect to  threatened,  pending or completed
suits or proceedings  against such persons by reason of serving or having served
the Company as officers, directors or in other capacities, except in relation to
matters with respect to which such persons shall be determined not to have acted
in good faith, lawfully or in the best interests of the Company. With respect to
matters to which the Company's officers,  directors,  employees, agents or other
representatives  are determined to be liable for misconduct or negligence in the
performance of their duties, the By-laws provide for indemnification only to the
extent that the Company determines that such person acted in good faith and in a
manner he reasonably  believed to be in or not opposed to the best  interests of
the Company.

ITEM 16. EXHIBITS

(2.1)               Share Acquisition Agreement.
(2.2)               Amendment to Share Acquisition Agreement
(5)                 Opinion of Harter, Secrest & Emery LLP.
(23.1)              Independent Accountants' Consent.
(23.2)              Consent of Harter, Secrest & Emery LLP (included in the
                    Opinion of Counsel filed as Exhibit 5)
(24)                Power of Attorney


ITEM 17. UNDERTAKINGS

         The undersigned  Registrant hereby  undertakes  (subject to the proviso
contained in Item 512(a) of Regulation S-K):

         (1) To file, during any period in which offers or sales are being made,
a post-effective amendment to this Registration Statement:
         (i)  to include any prospectus required by section 10(a)(3) of the
Securities Act of 1933;
         (ii) to reflect in the prospectus any facts or events arising after the
effective date of the Registration  Statement (or the most recent post-effective
amendment  thereof)  which,  individually  or  in  the  aggregate,  represent  a
fundamental  change in the information set forth in the Registration  Statement;
and

         (iii) to include any material  information  with respect to the plan of
distribution  not  previously  disclosed  in the  Registration  Statement or any
material change to such information in the Registration Statement.

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

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

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

         Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors,  officers and controlling  persons of
the  Registrant  pursuant  to  the  foregoing  provisions,   or  otherwise,  the
Registrant  has been advised that in the opinion of the  Securities and Exchange
Commission  such  indemnification  is against  public policy as expressed in the
Securities  Act of 1933 and is,  therefore,  unenforceable.  In the event that a
claim for  indemnification  against such liabilities  (other than the payment by
the  Registrant  of  expenses  incurred  or  paid  by  a  director,  officer  or
controlling  person of the Registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the securities being registered,  the Registrant will, unless
in the  opinion  of its  counsel  the matter  has been  settled  by  controlling
precedent,  submit to a court of appropriate  jurisdiction  the question whether
such  indemnification  by it is  against  public  policy  as  expressed  in  the
Securities  Act of 1933 and will be governed by the final  adjudication  of such
issue.

<PAGE>


                                   SIGNATURES

         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
Registrant certifies that is has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized  in the City of  Rochester,  State of New  York,  on this ____ day of
January 10, 2000.



                     PERFORMANCE TECHNOLOGIES, INCORPORATED

Dated:  January 28, 2000

                            By: /s/ DONALD L. TURRELL
                            --------------------------
                               Donald L. Turrell,
                           President, Chief Executive
                              Officer and Director


         Pursuant  to the  requirements  of the  Securities  Act of  1933,  this
Amendment No. 1 to the  Registration  Statement has been signed by the following
persons in the capacities and on the dates indicated:


/s/Donald L. Turrell
- -----------------------   President, Chief Executive            January 28, 2000
Donald L. Turrell         Officer and Director
                          (Principal Executive Officer)

/s/Dorrance W. Lamb
- -----------------------   Vice President of Finance             January 28, 2000
Dorrance W. Lamb          and Chief Financial Officer
                            (Principal Financial and
                               Accounting Officer)

/s/Charles E. Maginness*
- -----------------------   Chairman of the Board                 January 28, 2000
Charles E. Maginness      and Director

/s/John M. Slusser*
- -----------------------   Director                              January 28, 2000
John M. Slusser

/s/Bernard Kozel*
- -----------------------   Director                              January 28, 2000
Bernard Kozel

/s/John E. Mooney*
- -----------------------   Director                              January 28, 2000
John E. Mooney

/s/Paul L. Smith*
- -----------------------   Director                              January 28, 2000
Paul L. Smith

*Pursuant to Power of Attorney previously filed.

<PAGE>


                                INDEX TO EXHIBITS

(2.1)*          Share Acquisition Agreement

(2.2)*          Amendment to Share Acquisition Agreement

(5)+            Opinion of Harter, Secrest & Emery LLP

(23.1)*         Independent Accountants' Consent

(23.2)+         Consent of Harter, Secrest & Emery LLP (included in the Opinion
                of Counsel filed as Exhibit (5))

(24)+           Power of Attorney

*Filed herewith
+Previously filed

<PAGE>



                           SHARE ACQUISITION AGREEMENT
                                     between
                     PERFORMANCE TECHNOLOGIES, INCORPORATED

                               3688283 CANADA INC.
                                       and
                        MICROLEGEND TELECOM SYSTEMS INC.

                                  THOMAS BLAIN
                                REGINALD T. CABLE


                                TABLE OF CONTENTS

                                      Page


ARTICLE 1. DEFINITIONS.........................................................1
 1.1 Definitions...............................................................1
 1.2 Interpretation............................................................7

ARTICLE 2. THE ACQUISITION.....................................................7
 2.1 The Acquisition...........................................................7
 2.2 Acquisition Structure.....................................................7
 2.3 Closing...................................................................8

ARTICLE 3. ADJUSTMENTS RE EXCHANGEABLE SHARES; EXCHANGE OF CERTIFICATES........8
 3.1 Adjustments re Exchangeable Shares........................................8
 3.2 Exchange of Certificates..................................................8
 (a) Exchange Agent............................................................8
 (b) Exchange Procedures.......................................................8
 (c) Termination of Exchange Fund..............................................9
 (d) No Liability..............................................................9

ARTICLE 4. REPRESENTATIONS AND WARRANTIES OF MICROLEGEND.......................9
 4.1 Incorporation, Standing and Power........................................10
 4.2 Capital Structure........................................................10
 4.3 Authority, Etc...........................................................11
 4.4 No Conflict; Consents....................................................11
 4.5 Financial Statements.....................................................12
 4.6 No Additional Material Liabilities.......................................12
 4.7 Information Supplied.....................................................12
 4.8 MicroLegend Permits; Compliance with Legal Requirements..................12
 4.9 Real Property............................................................13
 4.10 Assets; Title; Absence of Liens and Encumbrances........................13
 4.11 Covenants and Restrictions; Zoning......................................14
 4.12 Condition of Occupied Real Property.....................................14
 4.13 Equipment; Personal Property............................................15
 4.14 Environmental Matters...................................................15
 4.15 Employee Plans..........................................................16
 4.16 Employment Matters......................................................18
 4.17 Material Agreements.....................................................19
 4.18 Litigation..............................................................21
 4.19 Taxes...................................................................21
 4.20 Absence of Certain Changes or Events....................................22
 4.21 Minute Books............................................................22
 4.22 Books and Records.......................................................22
 4.23 Insurance...............................................................23
 4.24 Intellectual Property...................................................23
 4.25 Accounts Receivable and Accounts Payable................................25
 4.26 Inventory and Backlog ..................................................25
 4.27 Customers and Suppliers.................................................25
 4.28 Product Warranties......................................................26
 4.29 Year 2000...............................................................26
 4.30 Banking Relationships...................................................26
 4.31 Disclosure..............................................................26

ARTICLE 5. REPRESENTATIONS AND WARRANTIES OF PTI..............................27
 5.1 Incorporation, Standing and Power........................................27
 5.2 Authority................................................................27
 5.3 No Conflict..............................................................27
 5.4 SEC Documents............................................................28
 5.5 Information Supplied.....................................................28
 5.6 Capital Structure........................................................28
 5.7 Acquisition Consideration................................................29
 5.8 Absence of Certain Changes or Events.....................................29
 5.9 Litigation...............................................................29
 5.10 Compliance with Legal Requirements......................................29
 5.11 Disclosure..............................................................30

ARTICLE 6. COVENANTS OF MICROLEGEND...........................................30
 6.1 Ordinary Course..........................................................30
 6.2 Dividends; Changes in Stock..............................................31
 6.3 Issuance of Securities...................................................31
 6.4 MicroLegend Permits......................................................31
 6.5 Advice of Changes........................................................31
 6.6 Access...................................................................31
 6.7 No Solicitations.........................................................32
 6.8 Cooperation in Preparation of Registration Statement, Etc................32
 6.9 Preparation of Additional Financial Statements...........................33
 6.10 Letter of MicroLegend's Accountants.....................................33
 6.11 Affiliates..............................................................33
 6.12 Transaction Expenses....................................................33
 6.13 Shareholders'Representation Agreements..................................33
 6.14 Tangible Net Worth......................................................33
 6.15 Pooling Opinion.........................................................34

ARTICLE 7. COVENANTS OF PTI...................................................34
 7.1 Preparation of Registration Statement, Etc...............................34
 7.2 NASDAQ Listing...........................................................34
 7.3 Employees................................................................34

ARTICLE 8. ADDITIONAL COVENANTS OF EACH PARTY.................................35
 8.1 Additional Agreements; Best Efforts......................................35
 8.2 Expenses.................................................................35
 8.3 Brokers or Finders.......................................................35
 8.4 Pooling..................................................................35
 8.5 Cooperation re Canadian Taxes............................................35
 8.6 Other Actions............................................................36
 8.7 Confidentiality..........................................................36
 8.8 Publicity................................................................37

ARTICLE 9. CONDITIONS PRECEDENT TO PARTIES'OBLIGATIONS........................37
 9.1 Conditions to Each Party's Obligation to Effect the Acquisition..........37
 (a) Governmental Approvals...................................................37
 (b) No Injunctions or Restraints.............................................37
 9.2 Conditions of Obligations of PTI and Sub.................................37
 (a) Representations and Warranties...........................................37
 (b) Performance of Obligations of MicroLegend................................37
 (c) No Amendments to Resolutions.............................................38
 (d) Articles of Incorporation, Certificate of
     Incorporation and Good Standing Certificates.............................38
 (e) MicroLegend Permits......................................................38
 (f) Consents Under Agreements................................................38
 (g) Real Estate Matters......................................................38
 (h) Letter and Opinion of MicroLegend's Accountants..........................38
 (i) Affiliates'Agreements....................................................39
 (j) Shareholders'Representation Agreements...................................39
 (k) Pooling Opinion..........................................................39
 (l) Financial Advisor's Opinion..............................................39
 (m) Legal Opinion of LaBarge Weinstein ......................................39
 (n) Employment Agreements....................................................39
 (o) Surrender of Name........................................................39
 (p) Other Evidence...........................................................39
 9.3 Conditions of Obligations of MicroLegend and Record Holders..............39
 (a) Representations and Warranties...........................................39
 (b) Performance of Obligations of PTI and Sub................................40
 (c) No Amendments to Resolutions.............................................40
 (d) Legal Opinion of Harter, Secrest & Emery LLP and Nelligan Power, LLP.....40
 (e) Voting and Exchange Trust Agreement......................................40
 (f) Other Evidence...........................................................40

ARTICLE 10. COVENANTS AS TO POST-CLOSING MATTERS..............................40
 10.1 Support Agreement.......................................................40
 10.2 Escrow and Indemnification..............................................40
 (a) Escrow Fund..............................................................41
 (b) Escrow Period............................................................41
 (c) Indemnification by MicroLegend Shareholders..............................41
 (d) Limitation ..............................................................41
 (e) Damage Threshold ........................................................42
 (f) Claims Upon Escrow Fund..................................................42
 (g) Objections to Claims.....................................................42
 (h) Resolution of Conflicts; Arbitration.....................................43
 (i) Representatives of the Shareholders......................................44
 (j) Third Party Claims.......................................................45
 (k) Indemnification By PTI...................................................45

ARTICLE 11. TERMINATION.......................................................46
 11.1 Termination.............................................................46
 11.2 Effect of Termination...................................................46

ARTICLE 12. IN GENERAL........................................................47
 12.1 Survival of Representations, Warranties and Agreements..................47
 12.2 Amendment; Waiver.......................................................47
 12.3 Notices.................................................................47
 12.4 Schedules and Other Instruments.........................................49
 12.5 Inferences..............................................................49
 12.6 Governing Law...........................................................49
 12.7 Assignment..............................................................49
 12.8 Benefit.................................................................49
 12.9 Entire Agreement; Rights of Ownership...................................49
 12.10 Counterparts...........................................................49



<PAGE>




                           SHARE ACQUISITION AGREEMENT


     This Share  Acquisition  Agreement (this  "Agreement")  has been made as of
December  2, 1999,  by and between  PERFORMANCE  TECHNOLOGIES,  INCORPORATED,  a
Delaware corporation  ("PTI"),  3688283 CANADA INC., a CBCA corporation ("Sub"),
MICROLEGEND TELECOM SYSTEMS INC., a CBCA corporation  ("MicroLegend") and Thomas
Blain  ("Blain") and Reginald T. Cable ("Cable")  (Blain and Cable  collectively
referred to as the "Principal Shareholders").

                                    Recitals


         PTI,  MicroLegend  and the  Principal  Shareholders  have  executed and
delivered a non-binding  Memorandum of Understanding  executed by PTI on October
4, 1999 (the "MOU")  setting forth the general terms and conditions on which PTI
would acquire MicroLegend.


         The respective Boards of Directors of PTI and MicroLegend have approved
the acquisition of MicroLegend, pursuant and subject to the terms and conditions
of this Agreement (the "Acquisition"), whereby all of the issued and outstanding
shares  of  the  capital  stock  of  MicroLegend  will  be  acquired  by  Sub in
consideration  for Sub's  issuance of  Exchangeable  Shares of Sub which will be
exchangeable  into shares of PTI Common Stock on a  one-for-one  basis,  and the
parties each desire to make certain  representations,  warranties and agreements
in connection with the Acquisition and also to prescribe  various  conditions to
the Acquisition.


         The parties  recognize and acknowledge that it is critical to PTI and a
condition precedent to its obligation to close the Acquisition, that PTI will be
able to account for the Acquisition as a Pooling.  The parties recognize that it
is critical to the  shareholders of MicroLegend  that they receive  Exchangeable
Shares without the recognition of any gain or loss pursuant to applicable income
tax laws and that such holders upon conversion of the  Exchangeable  Shares will
receive freely tradable PTI Common Stock.



         NOW,   THEREFORE,   in   consideration   of  the   premises   and   the
representations, warranties and covenants herein contained, the parties agree to
effect the  Acquisition on the terms and conditions  herein provided and further
agree as follows:

Article 1.........DEFINITIONS

1.1 Definitions.  In addition to the other definitions  contained in the heading
paragraph  of this  Agreement,  the  foregoing  recitals  and Section  1.2,  the
following terms will, when used in this Agreement, have the following respective
meanings:


         "Acquisition" has the meaning given it in the Recitals.


         "Acquisition Consideration" has the meaning given it by Section 2.1.


         "Acquisition Transaction" has the meaning given it by Section 6.7.


         "Affiliate" means a Person which, directly or indirectly,  controls, is
controlled by, or is under common control with, the referenced party.


         "Affiliates' Agreements" has the meaning given it by Section 6.11.


         "American GAAP" means generally accepted accounting principles approved
from time to time by the American Institute of Certified Public Accountants,  or
any successor institute, applied on a consistent basis.


         "Canadian GAAP" means generally accepted accounting principles approved
from time to time by the Canadian  Institute of  Chartered  Accountants,  or any
successor institute, applied on a consistent basis.


         "Canadian Tax Act" means the Income Tax Act  (Canada),  as in effect on
the date of this Agreement.


         "CBCA" means the Canada Business Corporations Act.


         "Certificates" has the meaning given it by Section 3.2(b).


         "Certifying Officers" means: (a) in the case of MicroLegend,  its Chief
Executive  Officer  and its  Secretary/Treasurer;  and  (b) in the  case of PTI,
either  its  President  and  Chief  Executive  Officer  or any  one of its  Vice
Presidents.


         "Closing" means the consummation of the Acquisition.


         "Closing Date" has the meaning given it by Section 2.3.


         "Code" means the Internal  Revenue Code of 1986,  as amended,  together
with all rules and regulations promulgated thereunder,  as in effect on the date
of this Agreement.


         "Confidential Information" has the meaning given it by Section 8.7.


         "Contracts" means and includes all contracts, subcontracts, agreements,
leases, options, notes, bonds, mortgages, indentures, deeds of trust, collateral
assignments,   obligations,   instruments,  concessions,  guarantees,  licenses,
franchises, permits, purchase orders, arrangements,  transactions,  commitments,
undertakings and understandings of every kind, written or oral.


         "Damages" has the meaning given it by Section 10.2(c).


         "date of this Agreement" or "date hereof" means December 2, 1999.


         "Employee Plans" has the meaning given it by Section 4.15(a).


         "Employees" has the meaning given it by Section 7.3.


         "Employment Agreements" has the meaning given it by Section 7.3.


         "Environmental   Laws"  means,   collectively,   all  federal,   state,
provincial  and  local  statutes,  regulations,   ordinances,  codes,  published
guidelines  and  policies,  directives  and  orders  (including  all  amendments
thereto)  pertaining  to  occupational  health and  safety,  transportation  and
environmental   matters  (which  includes  air,  water  vapor,   surface  water,
groundwater,   soil,  natural  resources,   chemical  use,  health,  safety  and
sanitation),  including the Comprehensive  Environmental Response,  Compensation
and Liability Act, the Medical Waste Tracking Act, the Resource Conservation and
Recovery  Act, the Clean Air Act, the Federal Water  Pollution  Control Act, the
Safe Water  Drinking  Act, the Toxic  Substance  Control  Act, the  Occupational
Safety and Health Act and the Environmental Protection Act (Ontario).


         "ERISA" means the Employee  Retirement  Income Security Act of 1974, as
amended,  together with all rules and regulations promulgated thereunder,  as in
effect on the date of this Agreement.


         "Escrow Agent" means First Union National Bank.


          "Escrow Agreement" has the meaning given it by Section 10.2(a).


         "Escrow Fund" has the meaning given it by Section 10.2(a).


         "Escrow Shares" has the meaning given it by Section 10.2(a).


         "Exchange Act" means the  Securities  Exchange Act of 1934, as amended,
together with all rules and regulations promulgated thereunder.


         "Exchange  Agent" means First Union National Bank or such other bank or
trust company as PTI may designate.


         "Exchange Fund" has the meaning given it by Section 3.2(a).


         "Exchangeable Shares" has the meaning given it by Section 2.1.


         "Expenses" has the meaning given it by Section 6.7.


         "Financial  Advisor"  means Tucker  Anthony  Cleary Gull, the financial
advisor of PTI.


         "Financial Statements" has the meaning given it by Section 4.5.


         "First Party" has the meaning given it by Section 8.7.


         "Governmental  Entity"  means any federal,  provincial,  state or local
court,  legislative body, governmental or quasigovernmental body,  municipality,
political  subdivision,   department,  commission,  board,  bureau,  department,
administration, council, agency, authority or other instrumentality.


         "Hazardous  Substances"  means and includes:  any hazardous  materials,
hazardous wastes,  hazardous substances and toxic substances as those or similar
terms are defined under any Environmental  Law; any solid waste generated in the
diagnosis,  treatment or immunizations of human beings or animals or in research
pertaining  thereto,  including  special  waste from health care  facilities  or
providers  which  if  improperly  treated  or  handled  may  serve  to  transmit
infectious  diseases and which is composed of animal waste, bulk blood and blood
products,  microbiological waste,  pathological waste or sharps; any asbestos or
any material that contains any hydrated mineral silicate,  including chrysolite,
amosite, crocidolite, tremolite, anthophylite and/or actinolite, whether friable
or   non-friable;    any    polychlorinated    biphenyls   or    polychlorinated
biphenyl-containing   materials   or  fluids;   radon;   any  other   hazardous,
radioactive,  toxic or noxious substance,  material,  pollutant,  contaminant or
solid, liquid or gaseous waste; any petroleum, petroleum hydrocarbons, petroleum
products,  crude oil or any fractions thereof, natural gas or synthetic gas; and
any substance  that,  whether by its nature or its use, is or becomes subject to
regulation  under  any   Environmental   Laws  or  with  respect  to  which  any
Environmental Laws or Governmental Entity requires or will require environmental
investigation, monitoring or remediation.


         "HSR" means the Hart-Scott-Rodino Antitrust  Improvements  Act of 1976,
 as amended.


         "including" or "includes"  means,  with respect to any matter or thing,
including but not limited to such matter or thing.


          "Indemnified Person" has the meaning given it by Section 10.2(c).


         "Intellectual Property" has the meaning given it by Section 4.24.


         "IRS" means the United States Internal Revenue Service.


         "knowledge"  means with  reference to any Party,  such  Party's  actual
knowledge  after due and  diligent  inquiry  of  officers,  directors  and other
employees of such Party reasonably  believed,  or should reasonably be believed,
to have knowledge of such matters.


         "Legal Requirements" means, collectively,  all laws, statutes, rulings,
rules,  regulations,  judgments,  orders, decrees, awards,  injunctions,  writs,
requirements,  permits,  certificates and ordinances of any Governmental Entity,
as in effect from time to time.


          "material"  means with  respect to any  entity,  any  material  event,
change,  condition or effect related to the condition  (financial or otherwise),
properties,  assets  (including  intangible  assets),   liabilities,   business,
operations, results of operations of such entity and its Subsidiaries,  taken as
a whole.


         "Material  Adverse  Effect"  means any  event,  change or effect  that,
individually  or when  taken  together  with all other such  events,  changes or
effects that have occurred prior to the time of  determination of the occurrence
of the Material  Adverse  Effect,  is or is  reasonably  likely to be materially
adverse  to  the  condition  (financial  or  otherwise),   properties,   assets,
liabilities,  business,  operations or results of  operations of the  applicable
entity and its Subsidiaries, taken as a whole.


         "Material Agreements" has the meaning given it by Section 4.17.


         "MicroLegend Permits" has the meaning given it by Section 4.8(a).


         "MOU" has the meaning given it in the Recitals.


         "NASDAQ" means the National Association of Securities Dealers Automated
 Quotation System.


         "OBCA" means the Ontario Business Corporation Act.


         "Officer's Certificate" has the meaning given it by Section 10.2(f).


          "OSA" means the Ontario Securities Act.


         "Other Party" has the meaning given it by Section 8.7.


         "Party" means any one of the Persons identified in the caption to  this
Agreement.


         "Permitted Encumbrances" has the meaning given it by Section 4.10(a).


         "Person" means and includes any individual,  partnership,  corporation,
trust, company, unincorporated organization,  joint venture or other entity, and
any Governmental Entity.


         "Pooling" means pooling-of-interests accounting treatment of a business
combination  that meets the conditions and  requirements set forth in Accounting
Principles  Board Statement No. 16,  paragraphs 45 through 48 and 50 through 60,
promulgated by the American Institute of Certified Public Accountants.


         "Pre-Closing Balance Sheet" has the meaning given it by Section 6.14.


         "Principal Shareholder Employment Agreements" has the meaning given it
by Section  7.3.


         "Principal Shareholders" has the meaning  given it  in the  caption  of
 this Agreement.


         "Prospectus" has the meaning given it by Section 5.5.


         "PTI SEC Documents" has the meaning given it by Section 5.4.


         "Real Property" has the meaning given it by Section 4.9.


         "Record  Holder" means a holder of record of MicroLegend  capital stock
as shown on the regularly maintained stock transfer records of MicroLegend,  who
as a result of the Acquisition becomes a holder of Exchangeable Shares.


         "Registration Statement" has the meaning given it by Section 4.7.


         "Release"  has  the  same  meaning  as  given  it by the  Comprehensive
Environmental Response,  Compensation and Liability Act of 1980, as amended, and
the regulations promulgated thereunder.


         "Remaining   Employment   Agreements"   has   the   meaning given it by
Section 7.3.


         "Representatives of the Shareholder" means Thomas Blain and Reginald J.
Cable,  acting in their  capacities as such  pursuant to the  provisions of this
Agreement.


         "SEC" means the United States Securities and Exchange Commission.


         "Securities Act" means the Securities Act of 1933, as amended, together
with all rules and regulations promulgated thereunder.


         "Shareholder's Representation Agreement" has the meaning  given  it  by
Section 6.13.


         "Stock Rights" has the meaning given it by Section 4.2.


         "Sub" means 3688283 Canada Inc., a CBCA corporation.


         "Subsidiary"  means,  with  respect  to any  Person,  any  corporation,
partnership, joint venture, trust or other entity of which such Person, directly
or indirectly  through an  Affiliate,  owns an amount of voting  securities,  or
possesses other ownership  interests,  having the power, direct or indirect,  to
elect a majority of the Board of Directors or other governing body thereof.


         "Support Agreement" has the meaning given it by Section 10.1.


         "Tangible  Net  Worth"  means an amount  equal to the book value of the
tangible  assets  of  MicroLegend  minus  the  book  value  of  the  liabilities
(excluding  Transaction Expenses) of MicroLegend,  determined in accordance with
Canadian GAAP as of the date of the Pre-Closing Balance Sheet.


         "Taxes"  means,  collectively,  federal,  provincial,  state  and local
income, payroll,  withholding,  employment,  health, goods and services, excise,
sales,  use,  real  and  personal  property,  use and  occupancy,  business  and
occupation, gross receipts, mercantile, real estate, capital stock and franchise
or other taxes,  duties or assessments of any nature  whatsoever,  including all
penalties and interest thereon and estimated taxes.


         "Technology" has the meaning given it by Section 4.29.


         "Transaction Expenses" has the meaning given it by Section 6.12.


         "Violation"  means that the referenced  event:  (a) conflicts  with, or
results in any violation  of, or a default  (with or without  notice or lapse of
time, or both) under, or gives rise to a right of  termination,  cancellation or
acceleration  of any obligation or the loss of a material  benefit under, or the
creation of a lien, pledge,  security interest or other encumbrance on assets in
connection  with, the referenced  Contract or other  document;  or (b) conflicts
with, or results in any violation  (with or without  notice or lapse of time, or
both) under, or gives rise to any damages, penalty or remedial action under, the
referenced Legal Requirement.

1.2  Interpretation.  In this Agreement,  unless the context otherwise requires,
references to "Articles"  and "Sections" are to the Articles or Sections of this
Agreement,  and references to "Exhibits" and "Schedules" are to the Exhibits and
Schedules  annexed  hereto;  references to any party to this  Agreement  include
references to its respective  successors and permitted assigns;  references to a
judgment   include   references  to  any  order,   writ,   injunction,   decree,
determination  or  award of any  court or  tribunal;  references  to any  dollar
amounts are all in U.S. dollars; any of the terms defined herein may, unless the
context requires  otherwise,  be used in the singular or the plural depending on
the reference;  and the masculine  pronoun includes the feminine and the neuter,
as  appropriate  in the context.  The divisions of this Agreement into articles,
sections and  subsections  and the use of captions  and  headings in  connection
therewith are solely for  convenience and have no legal effect in construing the
provisions of this Agreement.

Article 2                 THE ACQUISITION

2.1 The Acquisition. On the Closing Date and subject to the terms and conditions
of this  Agreement  and the  CBCA,  Sub  shall  acquire  all of the  issued  and
outstanding  shares of  MicroLegend  capital  stock for  2,165,732  exchangeable
shares of Sub having the rights,  privileges,  restrictions  and conditions more
particularly set forth on Exhibit A attached hereto (the "Exchangeable Shares"),
which  Exchangeable  Shares shall be issued to the  MicroLegend  shareholders as
more  particularly  set forth on Schedule 2.1. Each  Exchangeable  Share will be
exchangeable  into one fully-paid and  non-assessable  share of PTI Common Stock
(such number of  fully-paid  and  non-assessable  shares of PTI Common Stock per
Exchangeable Share being called the "Acquisition Consideration").

2.2      Acquisition Structure.

(a)  Immediately  following the Closing of the  Acquisition,  and subject to the
provisions of this  Agreement,  the  capitalization  of MicroLegend  shall be as
follows:

(i)   18,000,000 Class A Common Shares shall be owned by Sub;

(ii) 1,671,850 Class C Common Shares shall be owned by Sub; and

(iii) 2,475,000 First Preferred Shares shall be owned by Sub.

(b)  Immediately  following the Closing of the  Acquisition,  and subject to the
provisions of this Agreement, the capitalization of Sub shall be as follows:

(i) all of the  issued  and  outstanding  shares of Common  Stock of Sub will be
owned by PTI; and

(ii) all of the issued and outstanding Exchangeable Shares will be owned as more
particularly set forth on Schedule 2.1.

2.3  Closing.  The  Closing  will take place at 6:00 p.m.,  local  time,  on the
earliest date practicable after all of the conditions set forth in Article 9 are
satisfied  or waived by the  appropriate  party,  but in no event later than the
applicable  date  referred to in Section  11.1(f) (the "Closing  Date"),  at the
offices of Nelligan Power, LLP, 66 Slater, Suite 1900, Ottawa,  Ontario,  Canada
K1P 5H1,  unless  another  date or place is agreed to in writing by the parties.
The Parties agree that they  currently  contemplate  that the Closing will occur
one week following the date of this Agreement.

Article 3.        ADJUSTMENTS RE EXCHANGEABLE SHARES; EXCHANGE OF CERTIFICATES

3.1  Adjustments re  Exchangeable  Shares.  In the event of any stock  dividend,
subdivision, reclassification, recapitalization, combination, exchange of shares
or the like  affecting  shares  of PTI  Common  Stock  between  the date of this
Agreement and the time at which any Exchangeable  Shares are tendered for shares
of PTI  Common  Stock,  the  Acquisition  Consideration  will  be  appropriately
adjusted so that each  Record  Holder will  receive in the  Acquisition  for his
Exchangeable  Shares the amount of PTI Common Stock he would have been  entitled
to receive had such Record Holder exchanged his  Exchangeable  Shares for shares
of PTI Common Stock immediately prior to such event.

3.2      Exchange of Certificates.

(a) Exchange  Agent.  PTI will  deposit  with the Exchange  Agent on the Closing
Date, for exchange in accordance with this Article 3, subject to the Escrow Fund
provisions  of  Section  10.2(a)   through  the  Exchange  Agent,   certificates
representing the aggregate Acquisition Consideration for the Exchangeable Shares
(collectively, the "Exchange Fund").

(b) Exchange  Procedures.  On the Closing Date, PTI will cause Sub to deliver to
the  Representatives  of the Shareholders one or more certificates  which at the
Closing Date represent the Exchangeable  Shares less any Exchangeable  Shares to
be  deposited  pursuant  to  the  escrow  provisions  of  Section  10.2(a)  (the
"Certificates"),  a letter of  transmittal  (which will specify that delivery of
the  Certificates  will be  effected  and  that  risk of loss  and  title to the
Certificates  will pass, only upon delivery of the  Certificates to the Exchange
Agent),  which  Certificates will be in such form and have such other provisions
as set forth in Exhibit A, and  instructions  for use in effecting the surrender
of the  Certificates  in exchange for  certificates  representing  shares of PTI
Common Stock.  Upon surrender of a Certificate for  cancellation to the Exchange
Agent or to such other agent or agents as may be appointed by PTI, together with
such letter of transmittal, duly executed, the Record Holder of such Certificate
will be  entitled  to  receive in  exchange  therefor  one or more  certificates
representing  the  Acquisition  Consideration  which such Record  Holder has the
right to receive  pursuant to the  provisions of this Article 3, together with a
check  representing the cash, if any,  referred to in Sections  3.2(c),  and the
Certificate  so  surrendered  will  forthwith  be  cancelled.  PTI  will pay any
transfer or similar taxes, but will not pay any income taxes, required by reason
of the  issuance  of a  certificate  representing  shares  of PTI  Common  Stock
provided that such certificate is issued in the name of the Record Holder of the
Certificate surrendered in exchange therefor. PTI will not pay or be responsible
for any transfer or other tax,  including income taxes, if the obligation to pay
such tax is  solely  that of the  shareholder.  In the  event of a  transfer  of
ownership of Exchangeable Shares which is not registered in the transfer records
of Sub, one or more  certificates  representing the proper amount of Acquisition
Consideration  may be issued to the transferee if the  Certificate  representing
such  Exchangeable  Shares is presented to the Exchange Agent accompanied by all
documents required to evidence and effect such transfer and by evidence that any
applicable stock transfer taxes have been paid. In the case of any lost,  stolen
or  destroyed  Certificate,  the Record  Holder  thereof may be  required,  as a
condition  precedent  to delivery to him of the  Acquisition  Consideration,  to
deliver to PTI such  affidavit  and  personal  indemnity  as PTI may  reasonably
request with  respect to the  Certificate  alleged to have been lost,  stolen or
destroyed.   Until  surrendered  as  contemplated  by  this  Section  3.2,  each
Certificate  will be deemed at any time after the Closing Date to represent only
the right to exercise  such rights as set forth in Exhibit A and to receive upon
such surrender the Acquisition  Consideration  and the cash, if any, referred to
in Section 3.2(c).

(c) Termination of Exchange Fund. Any portion of the Exchange Fund which remains
undistributed  to holders  of  Certificates  at the end of five years  after the
Closing  Date will be  delivered  to PTI upon demand by PTI,  and any holders of
Certificates  who  have  not  theretofore  complied  with  this  Article  3 will
thereafter  look  only  to PTI  for  payment  of  their  claim  for  Acquisition
Consideration and the cash, if any, referred to in Section 3.2(c).

(d) No Liability.  Neither PTI, MicroLegend nor Sub will be liable to any holder
of shares of  MicroLegend  capital  stock or PTI  Common  Stock or  Exchangeable
Shares, as the case may be, for the Acquisition  Consideration (and cash in lieu
of fractional  shares and dividends or distributions  with respect  thereto,  if
any)  delivered  to a  public  official  pursuant  to any  applicable  abandoned
property, escheat or similar law.

Article 4.        REPRESENTATIONS AND WARRANTIES OF MICROLEGEND


         MicroLegend and each Principal  Shareholder  represents and warrants to
PTI and to Sub, as of the date hereof and as of the Closing Date, as follows:

4.1 Incorporation,  Standing and Power. Each of MicroLegend and its Subsidiaries
is a corporation duly incorporated,  validly existing and in good standing under
the laws of the jurisdiction in which it was organized.  Each of MicroLegend and
its Subsidiaries  has all requisite  corporate power and authority to own, lease
and operate its properties and to carry on its business as now being  conducted,
and as proposed to be conducted and is duly qualified to do business and in good
standing in each other  jurisdiction  in which the nature of its business or the
ownership  or leasing of its  properties  makes  such  qualification  necessary.
MicroLegend  has  heretofore  made  available to PTI true,  correct and complete
copies of the Articles of Incorporation and By-laws,  as currently in effect, of
MicroLegend  and each of its  Subsidiaries,  and has made available to PTI true,
correct and complete  minute books and stock records of MicroLegend  and each of
its  Subsidiaries.  Set  forth  in  Schedule  4.1  is a  complete  list  of  the
Subsidiaries  of  MicroLegend  and  its  ownership   percentage   thereof,   the
jurisdictions  in which the nature of the business of  MicroLegend or any of its
Subsidiaries,   or  the  ownership  or  leasing  of  their   properties,   makes
qualification  as a  foreign  corporation  necessary,  and the  joint  ventures,
partnerships and corporations  (other than Subsidiaries) in which MicroLegend or
any of its  Subsidiaries has an equity  interest,  and the ownership  percentage
thereof in each such  entity.  Except as set forth in Schedule  4.1,  all of the
outstanding  capital stock of, or other ownership  interests in, each Subsidiary
of MicroLegend is owned directly or indirectly by MicroLegend, free and clear of
all title defects, liens, encumbrances and restrictions.

4.2 Capital Structure.  The authorized capital stock of MicroLegend  consists of
the  following:  an unlimited  number of First  Preferred  Shares;  an unlimited
number  of Second  Preferred  Shares;  an  unlimited  number of Third  Preferred
Shares;  an unlimited number of Fourth Preferred  Shares; an unlimited number of
Class A Common  Shares;  an unlimited  number of Class B Common  Shares;  and an
unlimited  number of Class C Common  Shares.  As of the date  hereof,  there are
2,475,000  First Preferred  Shares issued and  outstanding,  18,000,000  Class A
Common Shares issued and  outstanding and 1,671,850 Class C Common Shares issued
and  outstanding.  As of the date  hereof,  there are not any  Second  Preferred
Shares,  Third Preferred  Shares,  Fourth  Preferred  Shares,  or Class B Common
Shares issued and outstanding. Except as disclosed in Schedule 4.2, there are no
options,  warrants,  calls,  rights,  claims,  commitments or Contracts to which
MicroLegend  or any of its  Subsidiaries  is a party or by which  any of them is
bound obligating MicroLegend or any of its Subsidiaries to issue, deliver, sell,
repurchase or redeem,  or cause to be issued,  delivered,  sold,  repurchased or
redeemed  additional  shares  of  capital  stock  of  MicroLegend  or any of its
Subsidiaries,  or obligating  MicroLegend or any of its  Subsidiaries  to grant,
extend  or  enter  into any  such  option,  warrant,  call,  right  or  Contract
(collectively,  "Stock Rights").  Except as disclosed in Schedule 4.2, no shares
of  MicroLegend  capital  stock are or will be  reserved  for  issuance  for any
purpose.  Schedule  4.2 sets forth a true,  complete  and  accurate  list of all
options  granted  after  December  31, 1998  including  the date of grant by the
MicroLegend  Board of  Directors,  the  identity of the  recipient  of the stock
option, the number of shares of MicroLegend capital stock subject to issuance on
exercise of the stock option,  the exercise price of the stock option,  the term
of the stock option and any vesting  provisions of the stock option.  Except for
this  Agreement,  no  Person  will  have any  Stock  Rights,  and no  shares  of
MicroLegend  capital stock will be reserved for issuance for any purpose. On the
date hereof, and on the Closing Date, no shares of MicroLegend capital stock are
or will be held by MicroLegend in its treasury, no shares of MicroLegend capital
stock are or will be held by any of MicroLegend's  Subsidiaries,  no voting debt
is or will be issued  or  outstanding,  all  outstanding  shares of  MicroLegend
capital stock are and will be validly issued,  fully paid and non-assessable and
MicroLegend has not granted any preemptive rights or any rights of first refusal
with respect to  MicroLegend  capital  stock.  Other than the  Affiliate  and as
disclosed in Schedule  4.2,  there are no contracts,  commitments  or agreements
relating to voting,  purchase or sale of MicroLegend's capital stock (i) between
or  among  MicroLegend  and any of its  shareholders  and  (ii)  to the  best of
MicroLegend's knowledge, between or among any of MicroLegend's shareholders.

4.3 Authority,  Etc. MicroLegend has all requisite corporate power and authority
to enter into this Agreement and, subject to Shareholder Approval, to consummate
the  transactions  contemplated  hereby.  The  execution  and  delivery  of this
Agreement and the consummation of the transactions contemplated hereby have been
duly  authorized by all necessary  corporate  action on the part of MicroLegend.
The Board of Directors of MicroLegend has duly adopted resolutions which approve
and adopt this Agreement and the consummation of the Acquisition. This Agreement
has been duly executed and delivered by MicroLegend  and, subject to Shareholder
Approval,   constitutes  the  valid  and  binding   obligation  of  MicroLegend,
enforceable in accordance with its terms,  except as the  enforceability  hereof
may be limited by bankruptcy,  insolvency or other laws relating to or affecting
creditors' rights  generally,  and general  principles of equity  (regardless of
whether such enforceability is considered in a proceeding in equity or at law).

4.4 No Conflict;  Consents.  The  execution  and  delivery of this  Agreement by
MicroLegend  does not, and the  consummation  of the  transactions  contemplated
hereby and the fulfillment of the obligations  and  undertakings  hereunder will
not,  result in any Violation of any provision of the Articles of  Incorporation
or By-laws of MicroLegend  or any of its  Subsidiaries,  any Material  Agreement
applicable to MicroLegend,  any of its  Subsidiaries or any of their  respective
assets,  or  any  Legal  Requirement  applicable  to  MicroLegend,  any  of  its
Subsidiaries or any of their respective assets;  except, in the case of Material
Agreements and Legal Requirements,  for Violations which could not reasonably be
expected,  individually  or in the aggregate,  to have any adverse effect on the
validity or  enforceability  of this Agreement or a Material  Adverse Effect the
operations or financial condition of MicroLegend and its Subsidiaries taken as a
whole.  Except  as set  forth in  Schedule  4.4 and  except  for (i)  applicable
requirements  of the  Securities  Act (Ontario)  (the "OSA") and other  relevant
Canadian  securities  statutes;  (ii) a  notification  under  Section  12 of the
Investment  Canada  Act;  (iii)  the  filing,  if  required,   of  a  pre-merger
notification  report by  MicroLegend  and PTI  under the HSR Act,  and (iv) such
other consents,  approvals, orders,  authorizations or registrations the failure
to obtain  which  could  not  reasonably  be  expected,  individually  or in the
aggregate,  to have any adverse effect on the validity or enforceability of this
Agreement or a Material Adverse Effect on the operations or financial  condition
of MicroLegend  and its  Subsidiaries  taken as a whole,  no consent,  approval,
order or  authorization  of, or  registration,  declaration  or filing with, any
Governmental  Entity is required by or with respect to MicroLegend or any of its
Subsidiaries  in connection with the execution and delivery of this Agreement by
MicroLegend or the consummation by MicroLegend of the transactions  contemplated
hereby.

4.5 Financial Statements. MicroLegend has heretofore made available to PTI true,
correct and complete copies of its audited consolidated financial statements for
the year  ended  July 31,  1998 and its  draft  audited  consolidated  financial
statements  for the year ended July 31,  1999,  and its  unaudited  consolidated
financial  statements  for the year ended July 31, 1997, and for the nine months
ended  September 30, 1999,  together with all notes thereto  (collectively,  the
"Financial Statements"). The audited Financial Statements and, subject to normal
year-end  adjustments,  lack of  footnotes  and other  presentation  items,  the
unaudited Financial  Statements have been stated in Canadian dollars,  have been
prepared in  accordance  with  Canadian  GAAP (except for the September 30, 1999
Financial  Statements  which  were  stated  in  U.S.  dollars  and  prepared  in
accordance with American GAAP) applied on a consistent  basis during the periods
involved  (except as may be indicated in the notes  thereto) and fairly  present
the  consolidated   financial  position  of  MicroLegend  and  its  consolidated
Subsidiaries  as at the dates  thereof  and the  consolidated  results  of their
operations and cash flows for the periods then ended.

4.6 No  Additional  Material  Liabilities.  Except as set forth in the Financial
Statements or in Schedule 4.6 neither  MicroLegend  nor any of its  Subsidiaries
had, as of July 31, 1999, any material liabilities,  whether accrued,  absolute,
contingent  or  otherwise,  of a kind or  character  which would be required (in
accordance  with Canadian or American GAAP) to be reflected in the  consolidated
balance sheet of MicroLegend as of July 31, 1999, including any such liabilities
related to any facility  previously  owned,  leased or operated.  Since July 31,
1999,  except for trade  payables,  liabilities or  obligations  incurred in the
ordinary  course  of  business  and  consistent  with  past  practice,   neither
MicroLegend nor any of its Subsidiaries has incurred any such  liabilities.  All
liabilities of  MicroLegend  and its  Subsidiaries  incurred since July 31, 1999
will have been and, as of the Closing Date,  will be properly  recorded in their
respective  books and records in  accordance  with the  accounting  policies and
procedures of MicroLegend consistently applied.

4.7  Information  Supplied.  The  information  supplied  or  to be  supplied  by
MicroLegend  for inclusion in any  registration  statement filed with the SEC by
PTI in connection with the  registration of shares of PTI Common Stock issued in
the   Acquisition,   including  all   amendments   thereto  (the   "Registration
Statement"),  will, at the time the  Registration  Statement  becomes  effective
under the Securities Act, not contain any untrue statement of a material fact or
omit to state any material  fact  required to be stated  therein or necessary to
make such information not misleading. Notwithstanding the foregoing, MicroLegend
makes no representation or warranty with respect to any information contained in
the Proxy Statement or Registration Statement which was furnished by PTI.

4.8      MicroLegend Permits; Compliance with Legal Requirements.

(a)  MicroLegend  and  its  Subsidiaries   duly  hold  all  licenses,   permits,
certificates, registrations, accreditations, orders, franchises, authorizations,
approvals and all consents, variances and exemptions, of any Governmental Entity
which are  necessary  for the  conduct of the  business of  MicroLegend  and its
Subsidiaries   and   utilization  of  the  Real  Property   (collectively,   the
"MicroLegend  Permits").  Schedule 4.8 contains a complete and accurate  list of
all  MicroLegend  Permits,  all of which are in full force and  effect.  Each of
MicroLegend and its  Subsidiaries is in compliance with the terms of each of the
MicroLegend  Permits,   except  for  failures  of  compliance  which  could  not
reasonably be expected,  individually  or in the  aggregate,  to have a Material
Adverse Effect on the operations or financial  condition of MicroLegend  and its
Subsidiaries  taken as a whole.  No action is pending  or, to the  knowledge  of
MicroLegend,  threatened or  recommended by any  Governmental  Entity to revoke,
withdraw or suspend any MicroLegend Permit.

(b) The businesses of each of MicroLegend and its  Subsidiaries  are being,  and
since  July  31,  1999  have  been,  conducted  in  compliance  with  all  Legal
Requirements,  except for such Violations that could not reasonably be expected,
individually  or in the  aggregate,  to have a  Material  Adverse  Effect on the
operations or financial condition of MicroLegend and its Subsidiaries taken as a
whole.  To the  knowledge  of  MicroLegend,  no  investigation  or review by any
Governmental  Entity with respect to MicroLegend or any of its  Subsidiaries  is
pending or threatened, nor has any Governmental Entity indicated an intention to
conduct the same. There is no Material Agreement, judgment, injunction, order or
decree  binding  upon  MicroLegend  or  any  of its  Subsidiaries  which  has or
reasonably  could be expected to have the effect of  prohibiting  or  materially
impairing any current or future  business  practice of MicroLegend or any of its
Subsidiaries,  any  acquisition  of  property  by  MicroLegend  or  any  of  its
Subsidiaries   or  the  conduct  of  business  by  MicroLegend  or  any  of  its
Subsidiaries as currently conducted or as proposed to be conducted.

4.9 Real  Property.  Schedule 4.9 is a true,  correct and complete list of and a
true,  correct and complete  description  of all real  property  owned,  leased,
operated or used by MicroLegend or any of its  Subsidiaries  (collectively,  the
"Real Property").  MicroLegend has heretofore delivered to PTI true, correct and
complete original or certified copies of all existing title insurance  policies,
exception documents, title reports, opinions,  transfers,  mortgages and surveys
with respect to each parcel of the Real Property.

4.10     Assets; Title; Absence of Liens and Encumbrances.

(a)  MicroLegend  and its  Subsidiaries  collectively  own or validly  lease all
properties  and assets,  real,  personal  and mixed,  tangible  and  intangible,
comprising and employed in the operation of or associated  with the  MicroLegend
business. Except for leased assets, each of MicroLegend and its Subsidiaries has
good  and  marketable  title  to all of  the  Real  Property  and  all of  their
respective other assets,  including those reflected in the consolidated  balance
sheet of MicroLegend  as of July 31, 1999,  free and clear of all title defects,
liens,  pledges,  security  interests,  claims,  encumbrances  and  restrictions
except,   with  respect  to  all  such  assets,   the   following   encumbrances
(collectively,  "Permitted  Encumbrances"):  mortgages  and liens  securing debt
reflected as liabilities in the Financial Statements; mechanics',  construction,
carriers', workers', repairmen's,  statutory or common law liens being contested
in good faith and by appropriate  proceedings,  which contested liens are listed
in Schedule 4.10(a);  liens for current Taxes not yet due and payable which have
been fully reserved against, or which, if due, are being contested in good faith
and by appropriate  proceedings,  which  contested  liens are listed in Schedule
4.10(a);  and such  imperfections  of title,  easements,  encumbrances and other
liens,  if any,  as are set  forth in the  deeds  or  leases  covering  the Real
Property or the surveys heretofore delivered to PTI or which are not substantial
in  character,  amount  or  extent,  and do  not,  singly  or in the  aggregate,
materially  detract from the value,  or  interfere  with the present use, of the
properties  and  assets  subject  thereto  or  affected   thereby  or  otherwise
materially  impair the operations of MicroLegend or any of its  Subsidiaries  as
presently conducted.

(b) All leases pursuant to which  MicroLegend or any of its Subsidiaries  leases
the Real  Property  or personal  property  are valid,  binding  and  enforceable
against  MicroLegend  in  accordance  with their  respective  terms,  subject to
applicable  bankruptcy,   insolvency  and  other  laws  of  general  application
affecting the  enforcement of creditors'  rights  generally and to the fact that
the  availability  of  equitable  remedies  is in the  discretion  of a court of
competitive  jurisdiction,  and  there is not,  under  any of such  leases,  any
existing  default on the part of MicroLegend or any of its  Subsidiaries  or, to
the  knowledge of  MicroLegend,  any  existing  default on the part of any other
party thereto,  or any event which,  with notice or lapse of time or both, would
constitute  such a default.  Schedule  4.10(b)  sets forth a true,  correct  and
complete  list of all such  leases and to the  extent any such  leases are oral,
sets forth a true, correct and complete summary of such leases.

(c) Except as set forth in Schedule 4.10(c),  no Real Property is located within
or adjacent to a flood or lakeshore erosion hazard area, fresh water wetlands as
defined under  applicable  Legal  Requirements,  coastal zone  management  area,
conservation  authority  area  or  any  other  parcel  protected,  regulated  or
controlled by any Legal  Requirements.  Neither the whole nor any portion of any
parcel of the Real Property has been condemned,  expropriated,  requisitioned or
otherwise  taken by any public  authority,  no notice of any such  condemnation,
expropriation,  requisition or taking has been received by MicroLegend or any of
its  Subsidiaries  and, to the knowledge of MicroLegend,  no such  condemnation,
expropriation,  requisition or taking is threatened or contemplated. MicroLegend
has no  knowledge  of any  public  improvements  which  may  result  in  special
assessments against or otherwise affecting the Real Property.

4.11 Covenants and Restrictions; Zoning. The Real Property currently conforms to
and complies with, all covenants, conditions,  restrictions,  reservations, land
use, zoning,  health,  fire, water and building codes and other applicable Legal
Requirements,  except for failures of conformance or compliance  which could not
reasonably be expected,  individually  or in the  aggregate,  to have a Material
Adverse  Effect the  operations or financial  condition of  MicroLegend  and its
Subsidiaries taken as a whole, and no such Legal Requirements  prohibit or limit
or condition the use or operation of any facility occupied by MicroLegend or the
Real  Property as currently  used and  operated.  There is no pending or, to the
knowledge of MicroLegend,  contemplated, threatened or anticipated change in the
zoning classification of any of the facilities or any portion thereof.

4.12 Condition of Occupied Real Property.  MicroLegend owns no Real Property. To
the knowledge of  MicroLegend,  except for the items set forth in Schedule 4.12,
all of such Real Property occupied by MicroLegend is in good state of repair and
condition, ordinary wear and tear excepted; there are no dangerous conditions or
defects  existing  upon or in any such Real  Property,  there are no  structural
defects in any such Real Property that would  adversely  affect the operation of
such Real Property as presently conducted, and there are no safety code or other
survey  requirements which are not subject to waiver or currently the subject of
a plan of correction which is being implemented. Except as set forth in Schedule
4.12, all gas,  electric power,  storm sewer,  sanitary  sewer,  water and other
utility  services  necessary  for the  current  operation  and use of such  Real
Property are available at the  boundaries of each facility  located on such Real
Property and when necessary direct  connection has been made to all such utility
facilities.  All of such Real Property has access to public roads sufficient for
MicroLegend and its Subsidiaries to operate their business and, to the knowledge
of  MicroLegend,  there are no plans,  studies or  efforts  by any  Governmental
Entity that would  modify or realign any street or highway  adjacent to any such
Real Property.

4.13 Equipment; Personal Property. MicroLegend has heretofore delivered to PTI a
depreciation  schedule listing,  as of July 31, 1999, all of the equipment owned
by MicroLegend or any of its  Subsidiaries.  Each MicroLegend  facility contains
all equipment,  inventories and other personal property in sufficient  condition
and in  quantities  to operate  such  facility at the  capacity  for which it is
currently operated.  None of such equipment relating to, used in or held for use
in the  business  of  MicroLegend,  is subject to any  mortgage,  pledge,  lien,
conditional  sale  agreement,  security  agreement,  encumbrance or other charge
except as specifically disclosed is Schedule 4.13. Except as otherwise disclosed
in  Schedule  4.13,  all  leasehold  improvements,  furnishings,  machinery  and
equipment of MicroLegend  related to, used in or held for use in the business of
MicroLegend are in good repair,  have been well  maintained,  and  substantially
comply with all Legal Requirements,  and such machinery and equipment is in good
working  order.  To  the  knowledge  of  MicroLegend,  there  is no  pending  or
threatened change of any Legal Requirement relating to the equipment or personal
property  of  MicroLegend  which  could  have a Material  Adverse  Effect on the
operations or financial condition of MicroLegend and its Subsidiaries taken as a
whole.

4.14  Environmental  Matters.  Except as disclosed in Schedule 4.14, none of the
facilities  occupied by MicroLegend is in Violation of any  Environmental  Laws,
except for Violations which could not reasonably be expected, individually or in
the aggregate,  to have a Material Adverse Effect on the operations or financial
condition  of  MicroLegend  and  its  Subsidiaries  taken  as a  whole,  neither
MicroLegend nor any of its Subsidiaries has Released any Hazardous Substances in
a manner that has  Violated  any  Environmental  Laws and, to the  knowledge  of
MicroLegend, there has been no such Release by any previous owner or operator of
any of the Real  Property,  and to the  knowledge  of  MicroLegend,  none of the
facilities  occupied  by  MicroLegend  or the  Real  Property  has  ever had any
underground storage tanks, as defined in 42 U.S.C. 6991(1)(A)(I), whether empty,
filled or partially  filled with any substance,  or any asbestos or any material
that contains any hydrated  mineral  silicate,  including  chrysolite,  amosite,
crocidolite,  tremolite,  anthophylite  and/or  actinolite,  whether  friable or
non-friable;  neither  MicroLegend,  any  of  its  Subsidiaries  nor  any of the
facilities of MicroLegend  has received any request for  information,  notice or
order  alleging  that  it may  be a  potentially  responsible  party  under  any
Environmental  Laws  for  the  investigation  or  remediation  of a  Release  or
threatened Release of Hazardous  Substances,  no event has occurred with respect
to any of the facilities  occupied by  MicroLegend  or the Real Property  which,
with the passage of time or the giving of notice,  or both,  would  constitute a
Violation  of  or  non-compliance  with  any  applicable  Environmental  Law  or
MicroLegend  Permit,  and  there  is no  lien,  notice,  litigation  or,  to the
knowledge  of  MicroLegend,   threat  of  litigation   relating  to  an  alleged
unauthorized  Release of any  Hazardous  Substance on, about or beneath the Real
Property (or any portion thereof),  or the migration of any Hazardous  Substance
to or from  property  adjoining  or in the  vicinity  of the Real  Property,  or
alleging any obligation under Environmental  Laws.  MicroLegend will immediately
notify PTI should MicroLegend,  any of its Subsidiaries or any of the facilities
occupied by  MicroLegend  receive any such  request for  information,  notice or
order, or become aware of any lien,  notice,  litigation or threat of litigation
relating to an alleged unauthorized Release of any Hazardous Substance on, about
or beneath the Real Property (or any portion thereof) or any other environmental
contamination  or liability  with  respect to the Real  Property (or any portion
thereof). MicroLegend and its Subsidiaries hold all MicroLegend Permits required
under any  Environmental  Law in connection with the use of the Real Property or
the operation of the facilities.

4.15     Employee Plans.

(a) Schedule 4.15 lists all employment  agreements,  all union,  guild, labor or
collective  bargaining  agreements,  all employee  benefit plans,  and all other
arrangements or  understandings,  explicit or implied,  written or oral, whether
for the benefit of one or more Persons, relating to employment,  compensation or
benefits,  to  which  MicroLegend  or any of its  Subsidiaries  is a party or is
obligated to contribute,  or by which  MicroLegend or any of its Subsidiaries is
bound, including all "employee benefit plans" within the meaning of Section 3(3)
of ERISA, all pension plans or group registered  retirement savings plans within
the meaning of the Canadian Tax Act; all  deferred  compensation,  bonus,  stock
option, stock purchase, stock incentive,  stock appreciation rights,  restricted
stock,  severance or incentive  compensation plans,  agreements or arrangements;
plans, agreements or arrangements providing for "fringe benefits" or perquisites
to employees,  officers,  directors or agents;  and all employment,  consulting,
termination or  indemnification  agreements  (collectively,  "Employee  Plans").
MicroLegend  has  delivered to or made  available  for  inspection  by PTI true,
correct and complete  copies of all  Employee  Plans,  all related  summary plan
descriptions,  the most recent financial reports and summary annual reports and,
where  applicable,  summary  descriptions  of any Employee  Plans not  otherwise
reduced  to  writing.  Except  as set  forth  on  Schedule  4.15,  there  are no
negotiations,  demands or proposals that are pending or have been made since the
respective  dates of the Employee  Plans which concern  matters now covered,  or
that would be covered, by any Employee Plan.

(b) MicroLegend and each of its Subsidiaries and each of the Employee Plans have
complied and are in  compliance  in all material  respects  with the  applicable
provisions  of the Code,  ERISA,  the Canadian Tax Act and all other  applicable
Legal Requirements.  MicroLegend and each of its Subsidiaries have performed all
of their obligations under all of the Employee Plans, including the full payment
when originally due of all amounts required to be made as contributions  thereto
or otherwise.

(c) None of the Employee Plans nor any fiduciary  thereof has been the direct or
indirect  subject of an audit,  investigation or examination by any Governmental
Entity  within the last five years.  There are no actions,  suits,  penalties or
claims (other than routine undisputed claims for benefits) pending or threatened
against or arising out of any of the  Employee  Plans or the  respective  assets
thereof and, to the  knowledge of  MicroLegend,  no facts exist which could give
rise to any such actions, suits, penalties or claims which might have a Material
Adverse Effect on any Employee Plan or on MicroLegend and its Subsidiaries taken
as a whole.

(d) Each Employee  Plan that is intended to qualify under Section  401(a) of the
Code or the  Canadian  Tax Act is so  qualified  and has  received  a  favorable
determination letter. There have been no developments since the respective dates
of such  determination  letters that would create a material risk of causing the
loss of qualification of the subject Employee Plan.

(e) Neither MicroLegend nor any of its Subsidiaries maintains or has at any time
maintained, or has or could have any liability with respect to, an Employee Plan
subject  to  Title  IV of  ERISA.  No  Employee  Plan  is or  ever  has  been  a
"multiemployer  plan"  within the  meaning of  Section  3(37) of ERISA.  Neither
MicroLegend  nor any of its  Subsidiaries  has or could have any liability  with
respect to a  "multiemployer  plan" as defined under Section 3(37) of ERISA.  No
Employee  Plan now holds or has  heretofore  held any stock or other  securities
issued by MicroLegend or any of its Subsidiaries. Neither MicroLegend nor any of
its Subsidiaries has established or contributed to, is required to contribute to
or has or could have any  liability  with respect to any  "voluntary  employees'
beneficiary  association"  within the meaning of Section  501(c)(9) of the Code,
any "welfare  benefit  fund" within the meaning of Section 419 of the Code,  any
"qualified  asset account" within the meaning of Section 419A of the Code or any
"multiple employer welfare  arrangement"  within the meaning of Section 3(40) of
ERISA.

(f) All  group  health  plans of  MicroLegend  and its  Subsidiaries  have  been
operated  in  compliance  with  the  group  health  plan  continuation  coverage
requirements of any applicable state law,  Sections 601 through 608 of ERISA and
Section 4980B of the Code,  Title XXII of the Public Health  Service Act and the
provisions  of the Social  Security  Act,  to the extent such  requirements  are
applicable.  Except to the  extent  required  under  Section  4980B of the Code,
neither  MicroLegend  nor any of its  Subsidiaries  provides  health or  welfare
benefits  (through  the  purchase of  insurance  or  otherwise)  for any retired
employee or any former employee.

(g)  No  provision  of  any  Employee  Plan  restricts  the  ability  of  PTI or
MicroLegend to terminate the future accruals of obligations thereunder after the
Closing Date; provided, however, that no such representation or warranty is made
with respect to liabilities already accrued at the time of such termination.

(h) Except as set forth in Schedule 4.15,  each return or report  required to be
filed by  MicroLegend  or any of its  Subsidiaries  has been filed in accordance
with all applicable Legal Requirements.

(i) There has been no act or omission by MicroLegend or any of its  Subsidiaries
that has  given  rise or may give  rise to fines,  penalties,  Taxes or  related
charges under Sections 4980D,  502(c) or 502(l) of ERISA,  Chapters 43, 46 or 47
of Subtitle D of the Code, or Chapter 68 of Subtitle F of the Code, or any other
applicable provisions of the Code or ERISA.

(j)  Neither  MicroLegend  nor  any  of  its  Subsidiaries  has  engaged  in any
prohibited  transaction  described in Section 4975 of the Code or Section 406 of
ERISA  affecting any Emloyee Plan or the trusts created  thereunder  which could
subject any such Employee Plan or trust to a tax or penalty.

(k) Solely for purposes of this Section 4.15,  all  references to MicroLegend or
any of its Subsidiaries  includes any Person which, together with MicroLegend or
any of its  Subsidiaries,  is considered an affiliated  organization  within the
meaning of  Sections  414(b),  414(c),  414(m) or 414(o) of the Code or Sections
3(5) or 4001(b)(1) of ERISA.

4.16     Employment Matters.

(a)  Except  as  disclosed  in  Schedule  4.16,  each  of  MicroLegend  and  its
Subsidiaries  is  in  compliance  in  all  material   respects  with  all  Legal
Requirements   respecting  employment  and  employment   practices,   terms  and
conditions of employment,  wages and hours,  neither  MicroLegend nor any of its
Subsidiaries  is engaged in any unfair  labor or unlawful  employment  practice,
there is no unlawful  employment practice  discrimination  charge pending before
any regulatory  agency,  there is no unfair labor  practice  charge or complaint
against  MicroLegend  or any of its  Subsidiaries  pending before any regulatory
authority,  there is no labor  strike,  dispute,  slowdown or stoppage  actually
pending or, to the knowledge of MicroLegend,  threatened against or involving or
affecting MicroLegend,  any of its Subsidiaries or any of the Facilities, and no
representation question exists respecting any of their respective employees, and
no grievance or arbitration  proceeding is pending against MicroLegend or any of
its Subsidiaries  and no written claim therefor  exists.  Except as disclosed in
Schedule 4.16,  MicroLegend and its  Subsidiaries are not parties to any written
contracts  of  employment  with any of its  employees  or any oral  contracts of
employment  which are not  terminable on the giving of reasonable  notice and/or
severance  pay  in  accordance  with  applicable   Legal   Requirements  and  no
inducements  to accept  employment  with  MicroLegend or its  Subsidiaries  were
offered to any such employees  which have the effect of increasing the period of
notice of termination  to which any such employee is entitled.  All levies under
the Workers'  Compensation  Act  (Ontario),  or under the Workers'  Compensation
legislation of any other  jurisdiction  where  MicroLegend and its  Subsidiaries
carry on business, have been paid in full.

(b) Without  limiting the  generality of the  foregoing,  except as disclosed in
Schedule 4.16, there is no:

(i) unfair labor practice  complaint under the Canada Labour Code or the Ontario
Labour  Relations Act against  MicroLegend  or any of its  Subsidiaries  pending
before the federal or provincial  labour tribunals or any similar agency or body
having jurisdiction therefor;

(ii)  labor  strike   threatened   against  or  involving   MicroLegend  or  its
Subsidiaries;

(iii) certification application outstanding respecting MicroLegend's employees;

(iv) grievance or arbitration  proceeding or governmental  proceeding related to
MicroLegend's  employees  pending,  nor is there any such proceeding  threatened
against  MicroLegend  or any of its  Subsidiaries  which  might  have a Material
Adverse  Effect on MicroLegend  or its  Subsidiaries  or on the conduct of their
business taken as a whole;

(v)  proceeding  in which  MicroLegend  or any of its  Subsidiaries  is involved
before any federal or provincial human rights tribunal; and

(vi)  collective  bargaining  agreement with any employees of MicroLegend or its
Subsidiaries  nor is there  currently a collective  bargaining  agreement  being
negotiated by MicroLegend or any of its Subsidiaries.

4.17 Material  Agreements.  Schedule  4.17 contains a true,  correct and, to the
knowledge of MicroLegend,  complete list of all Contracts,  to which MicroLegend
or any of its Subsidiaries or any of the facilities occupied by MicroLegend is a
party which are not cancelable by MicroLegend or its Subsidiaries upon notice of
30 days or less except any Contract which involves or may reasonably be expected
to involve the payment to or by  MicroLegend  of less than $25,000 over the term
of the  Contract  (collectively,  the  "Material  Agreements").  Except  for the
Material Agreements,  neither MicroLegend nor any of its Subsidiaries is a party
to or subject  to any of the  following,  in each case to the  extent  that such
contracts, commitments, plans, agreements and/or licenses relate to the conduct,
activities, operation or products of the business of MicroLegend:

(a) any  plan or  contract  providing  for  bonuses,  pensions,  options,  stock
purchases,   deferred   compensation,   retirement  payments,   profit  sharing,
collective  bargaining or the like, or any contract or agreement  with any labor
union not specifically disclosed elsewhere under this Agreement;

(b)      any employment contract or contract for services;

(c) any contract or agreement  for the  purchase of any  commodity,  material or
equipment  except to purchase orders in the ordinary course of business for less
than $10,000 each, such orders not exceeding $50,000 in the aggregate;

(d) any other contracts or agreements creating any obligations of MicroLegend or
its  Subsidiaries  of  $25,000  or more with  respect  to any such  contract  or
agreement not specifically disclosed elsewhere under this Agreement;

(e) any contract or agreement providing for the purchase of all or substantially
all of its requirements of a particular product from a supplier;

(f) any contract or  agreement  involving  more than $25,000  which by its terms
does not terminate or is not terminable without penalty by MicroLegend or any of
its  subsidiaries  or any  successor  or assign  within  one year after the date
hereof;

(g) any contract or agreement  for the sale or lease of its products not made in
the ordinary course of business;

(h) any contract which,  as a result of the execution,  delivery and performance
of this  Agreement  and each  agreement,  document and  instrument  executed and
delivered by MicroLegend  pursuant to this Agreement will give rise to or permit
any third party to exercise additional rights under any contract or agreement to
which  MicroLegend or any of its  Subsidiaries  is a party,  including,  without
limitation,  any contract  which  provides for the transfer of any  intellectual
property, such as source code or other information,  upon a change in control of
MicroLegend;

(i) any contract with any sales agent or distributor of products of MicroLegend;

(j) any contract containing covenants limiting the freedom of MicroLegend or any
of its  Subsidiaries or their  respective  assignees or successors to compete in
any line of business or with any person or entity;

(k) any contract or agreement for the purchase of any fixed asset for a price in
excess of $25,000  whether or not such purchase is in the ordinary course of the
business of MicroLegend;

(l)      any license agreement (as licensor or licensee);

(m) any indenture,  mortgage, promissory note, loan agreement, guaranty or other
agreement or commitment for the borrowing of money; or

(n)  any  contract  or  agreement  with  any  officer,  employee,   director  or
shareholder  of MicroLegend  or any of its  Subsidiaries  or with any persons or
organizations  controlled  by  or  affiliated  with  any  of  such  persons  not
specifically disclosed elsewhere under this Agreement.

         True, correct and complete copies of all Material Agreements, and true,
correct and complete  summaries of all Material  Agreements  which have not been
reduced to writing,  have been delivered or made available to PTI. Each Material
Agreement constitutes the valid and legally binding obligation of MicroLegend or
its Subsidiary,  as the case may be, and is enforceable  against  MicroLegend or
its  Subsidiary,  as the case may be, in  accordance  with its terms  subject to
applicable  bankruptcy,   insolvency  and  other  laws  of  general  application
affecting the  enforcement of creditors'  rights  generally and to the fact that
the  availability  of  equitable  remedies  is in the  discretion  of a court of
competent jurisdiction. To the knowledge of MicroLegend, each Material Agreement
constitutes the valid and legally binding  obligation of the other party thereto
and is enforceable  against such party in accordance with its terms. Each of the
Material  Agreements  constitutes  the entire  agreement  between the respective
parties  thereto  relating to the subject  matter  thereof.  To the knowledge of
MicroLegend,  in all  material  respects all  obligations  required to have been
performed under the terms of the Material Agreements have been performed, no act
or omission has  occurred or failed to occur  which,  with the giving of notice,
the lapse of time or both would  constitute a default  under any of the Material
Agreements,  and each of the  Material  Agreements  is in full  force and effect
without  default  on the  part of any  party  thereto.  Except  as set  forth in
Schedule 4.17, each of the Material  Agreements is with a party who is neither a
director,  officer, employee or Affiliate of MicroLegend,  nor, to the knowledge
of  MicroLegend,  an Affiliate of any of the  foregoing;  was entered into on an
arm's length basis in the ordinary course of business; and has not been amended.
Except as noted in  Schedule  4.17,  none of the  Material  Agreements  requires
consent for or is otherwise affected by the Acquisition.

4.18 Litigation. Except as disclosed in Schedule 4.18, there is no action, suit,
proceeding,  arbitration  or  investigation  pending  or,  to the  knowledge  of
MicroLegend,   threatened   against  or  affecting   MicroLegend,   any  of  its
Subsidiaries or any facility occupied by MicroLegend (or any of their respective
officers or directors in connection  with the business of  MicroLegend or any of
its Subsidiaries),  nor is there any judgment, injunction, decree, rule or order
of any Governmental Entity or arbitrator outstanding against MicroLegend, any of
its Subsidiaries or any Facility.

4.19     Taxes.

(a) MicroLegend and its Subsidiaries  have timely filed all tax returns required
to be filed by any of them and have paid all Taxes  required to be paid as shown
on such returns.  The Financial Statements reflect, and the financial statements
of MicroLegend at the Closing Date will reflect,  an adequate accrual,  based on
the facts and circumstances existing as of the respective dates thereof, for all
Taxes payable by MicroLegend and its  Subsidiaries  (whether or not shown in any
return) through the respective dates thereof.  All such filed tax returns are in
all material respects correct,  complete and accurate.  Neither  MicroLegend nor
any of its  Subsidiaries  has taken,  plans or intends to take any action  which
would result in any  liability to  MicroLegend  or any of its  Subsidiaries  for
Taxes as a result of the  transactions  contemplated by this  Agreement.  To the
knowledge  of  MicroLegend,  there are no  material  deficiencies  for any Taxes
proposed,  asserted or assessed against  MicroLegend or any of its Subsidiaries.
The tax returns of MicroLegend and its Subsidiaries consolidated in such returns
have not been examined by and settled with any taxing authority,  or the statute
of  limitations  with  respect to such years has  expired,  for all fiscal years
through the fiscal year ended July 31,  1998,  except with respect to claims for
refunds.  Neither  MicroLegend nor any of its Subsidiaries is a party to any tax
sharing  or  tax  allocation  agreement  nor  does  MicroLegend  or  any  of its
Subsidiaries owe any amount under any such agreement.

(b) Without  limiting  the  generality  of the  foregoing,  MicroLegend  and its
Subsidiaries have filed all reports or returns with respect to income,  capital,
sales  (including  goods and  services  tax,  provincial  sales tax and  Ontario
employer health tax reports),  excise, business and property taxes and all other
taxes and customs  duties which are required to be filed by it up to the date of
this Agreement (and all such returns and reports are correct and complete in all
material  respects) and have paid, or where permitted by law,  provided security
for, all taxes and duties as shown on such reports or returns to the extent such
taxes or duties are payable or may become due and have paid, or where  permitted
by law, provided security for, all assessments received by them. MicroLegend and
its  Subsidiaries  have withheld  from any amounts  payable,  including  without
limiting  the  generality  of the  foregoing,  from  any  salaries,  bonuses  or
dividends  paid by them,  all  deductions  required by law to be made  therefrom
(including without  limitation,  withholding under the Canadian Tax Act relating
to personal income tax,  unemployment  insurance  contributions,  Canada Pension
Plan  contribution,  and provincial  employer health tax  remittances)  and have
remitted the same to the proper tax or other authorities.

4.20 Absence of Certain Changes or Events.  Except as disclosed in the Schedules
or in the Financial  Statements and except as  contemplated  by this  Agreement,
since July 31, 1999,  MicroLegend  and its  Subsidiaries  have  conducted  their
respective  businesses only in the ordinary and usual course,  and there has not
been  any  material  adverse  change  in the  operations,  assets  or  financial
condition  of  MicroLegend  or any of its  Subsidiaries,  any  material  damage,
destruction,  loss  or  casualty  to any  assets  of  MicroLegend  or any of its
Subsidiaries,  whether or not covered by insurance, which assets are material to
the ongoing  operations or business of MicroLegend or any of its Subsidiaries as
presently conducted,  any sale, assignment,  transfer or disposition of any item
of plant, property or equipment of the facilities occupied by MicroLegend having
a net book  value in excess of  $25,000  (other  than  supplies),  except in the
ordinary course of business,  any material change in any method of accounting or
accounting  practice by MicroLegend or any of its Subsidiaries (other than those
requested by PTI as contemplated by this Agreement),  any  declaration,  setting
aside or payment of any dividend or other  distribution  (whether in cash, stock
or  property)  with  respect  to  any of  MicroLegend's  capital  stock,  or any
transaction,  commitment, dispute or other event or condition individually or in
the aggregate  having or which,  insofar as reasonably  can be foreseen,  in the
future  is  reasonably  likely  to  have,  a  Material  Adverse  Effect  on  the
operations, assets or financial condition of MicroLegend and its Subsidiaries.

4.21 Minute Books.  The minute books of MicroLegend  and its  Subsidiaries  have
been made  available to PTI and contain a complete  and accurate  summary of all
meetings of directors and shareholders or actions taken by written consent since
the date of incorporation  of MicroLegend and its Subsidiaries  through the date
of this Agreement,  and accurately  reflect all transactions  identified in such
minutes in all material respects, subject to the provision that no omission from
the minute books will have an adverse effect on PTI's ability to account for the
Acquisition  as  a  Pooling  or  will  cause   MicroLegend   and  the  Principal
Shareholders to breach any of their other representations and warranties in this
Agreement.

4.22 Books and Records. MicroLegend has provided PTI with complete access to all
of the books and records of MicroLegend and its Subsidiaries.  All of such books
and records are true, correct and complete in all material respects, and are and
have  been  maintained  in  substantial  compliance  with all  applicable  Legal
Requirements.

4.23 Insurance.  MicroLegend has heretofore  provided to PTI a true, correct and
complete  list  of the  current  insurance  coverages  of  MicroLegend  and  its
Subsidiaries,  including names of carriers and amounts of coverage.  MicroLegend
and each of its  Subsidiaries  has been and is insured by financially  sound and
reputable  insurers  with  respect  to its  properties  and the  conduct  of its
business in such amounts and against such risks as are reasonable in relation to
their  respective  businesses,  and each shall  maintain such insurance at least
through the Closing Date.  There is no material  claim pending under any of such
policies as to which  coverage  has been  questioned,  denied or disputed by the
insurers.  All premiums due and payable under all such  insurance have been paid
and MicroLegend and its Subsidiaries are otherwise in compliance in all material
respects  with the terms of such  insurance.  To the  knowledge of  MicroLegend,
there is no threatened  termination of, or material premium  increase  proposed,
with respect to any such insurance.

4.24 Intellectual  Property.  Except as set forth in Schedule 4.24,  MicroLegend
and its Subsidiaries  have exclusive  ownership of, or are licensed or otherwise
possess  legally  enforceable  rights to use,  all  patents,  copyrights,  trade
secrets,  trademarks,  service marks and any applications therefor,  mask works,
net lists,  schematics,  technology,  know-how,  inventory,  ideas,  algorithms,
processes,  computer  software programs or applications (in both source code and
object code  form),  and  tangible  or  intangible  proprietary  information  or
material  used or proposed to be used in the  business  of  MicroLegend  and its
Subsidiaries  as  currently   conducted  or  as  proposed  to  be  conducted  by
MicroLegend and its Subsidiaries  (collectively,  the "Intellectual  Property").
Except  as set  forth in  Schedule  4.24,  MicroLegend's  rights  in all of such
Intellectual Property are freely transferable. There are no claims or demands of
any  other  Person  pertaining  to  any of  such  Intellectual  Property  and no
proceedings  have  been  instituted,  or are  pending  or, to the  knowledge  of
MicroLegend,  threatened,  which  challenge  the  rights of  MicroLegend  or its
Subsidiaries  in respect  thereof.  MicroLegend  has the right to use,  free and
clear of claims  or  rights  of other  Persons,  all  customer  lists,  designs,
manufacturing or other processes, computer software, systems, data compilations,
research   results  and  other   information   required  for  or  incidental  to
MicroLegend's business as presently conducted or contemplated.

(a) Schedule 4.24 lists all patents, patent applications,  trademarks, trademark
applications and registrations  and registered  copyrights which are owned by or
licensed to MicroLegend or any of its  Subsidiaries  related to or used or to be
used in MicroLegend's  business as presently conducted or contemplated,  and all
other items of intellectual  property which are used in MicroLegend's  business.
All of such patents,  patent applications,  trademark  registrations,  trademark
applications and registered copyrights have been duly registered in, filed in or
issued by the  United  States  Patent  and  Trademark  Office  and the  Canadian
Intellectual  Property Office,  the United States Register of Copyrights and the
Canadian  Register  of  Copyrights,   or  the  corresponding  offices  of  other
jurisdictions as identified on Schedule 4.24, and have been properly  maintained
and renewed in accordance with all Legal Requirements.

(b) All  licenses  or other  agreements  under which  MicroLegend  or any of its
Subsidiaries  is granted  rights in  Intellectual  Property that are related to,
used or to be used in MicroLegend's business are set forth in Schedule 4.24. All
said  licenses or other  agreements  are in full force and  effect,  there is no
material  default  thereunder by any party thereto,  and, except as set forth on
Schedule 4.24, all of MicroLegend's rights thereunder are freely assignable.  To
the  knowledge  of  MicroLegend,  the  licensors  under said  licenses and other
agreements  have and had all  requisite  power and authority to grant the rights
purported to be conferred thereby. True and complete copies of all such licenses
or other  agreements,  and any amendments  thereto,  have been made available to
PTI.

(c) All  licenses  or other  agreements  under which  MicroLegend  or any of its
Subsidiaries  have granted  rights to others in  Intellectual  Property owned or
licensed by MicroLegend that are related to, used or to be used in MicroLegend's
business,  are set  forth  in  Schedule  4.24.  All of said  licenses  or  other
agreements  are in full force and effect,  there is no  material  default by any
party thereto,  and except as set forth on Schedule  4.24, all of  MicroLegend's
rights  thereunder  are freely  assignable.  True and  complete  copies of every
license or other agreement, and any amendments thereto, have been made available
to PTI.

(d)  MicroLegend and each of its  Subsidiaries  have taken all steps required to
establish and preserve their ownership of all Intellectual  Property rights with
respect to the services and  technology  employed in, and the products  produced
and generated by, MicroLegend's business. Without limiting the generality of the
foregoing,   MicroLegend  and  its  Subsidiaries  have  required  all  of  their
professional and technical  employees  employed in connection with MicroLegend's
business,  and other employees having access to valuable non-public  information
of  MicroLegend  concerning  or related to  MicroLegend's  business,  to execute
agreements  under which such  employees are required to convey to MicroLegend or
its  Subsidiaries,  as applicable,  ownership of all inventions and developments
conceived  or created by them and to maintain  the  confidentiality  of all such
information  of  MicroLegend.  MicroLegend  has not made  any  such  information
available  to any  person  other  than  employees  of  MicroLegend  employed  in
connection with  MicroLegend's  business  except pursuant to written  agreements
requiring the recipients to maintain the confidentiality of such information and
appropriately  restricting the use thereof,  which written agreements are listed
on Schedule 4.24. To the knowledge of  MicroLegend,  no person has infringed any
of its Intellectual Property rights.

(e) To the  knowledge of  MicroLegend,  the present and  contemplated  business,
activities and products of MicroLegend do not infringe any Intellectual Property
of any other person. No proceeding charging MicroLegend with infringement of any
adversely-held  Intellectual  Property  has been filed or, to the  knowledge  of
MicroLegend,  is threatened to be filed. To the knowledge of MicroLegend,  there
exists no unexpired patent or patent application owned by any Person (including,
without  limitation,  any Affiliate of  MicroLegend)  which includes claims that
would be infringed by or otherwise  adversely affect  MicroLegend's  business or
products  produced  or  generated  thereby.  To the  knowledge  of  MicroLegend,
MicroLegend is not making  unauthorized use of any  confidential  information or
trade secrets of any Person, including without limitation any former employer of
any past or present  employee  of  MicroLegend.  Except as set forth in Schedule
4.24, with respect to MicroLegend's business, neither MicroLegend nor any of its
Affiliates nor, to the knowledge of MicroLegend, any of their employees employed
with respect to MicroLegend's  business have any agreements or arrangements with
any Persons other than MicroLegend relating to confidential information or trade
secrets of such Persons or restricting any such employee's  ability to engage in
business  activities.  The  activities of  MicroLegend's  employees on behalf of
MicroLegend  do not  violate  any  such  agreements  or  arrangements  known  to
MicroLegend which any such employees have with other Persons.

4.25 Accounts  Receivable and Accounts Payable.  Except as set forth in Schedule
4.25, all accounts receivable of MicroLegend, whether reflected on the Financial
Statements or otherwise, represent sales actually made in the ordinary course of
MicroLegend's  business or valid  claims as to which full  performance  has been
rendered,  and the reserves against the Accounts  Receivable for returns and bad
debts are  commercially  reasonable and have been  determined in accordance with
Canadian GAAP,  consistently applied.  Except to the extent reserved against the
Accounts Receivable,  no counterclaims or off-setting claims with respect to the
Accounts Receivable are pending or, to the knowledge of MicroLegend, threatened.
Except as set forth in  Schedule  4.25,  the  accounts  payable  of  MicroLegend
reflected on the Financial  Statements arose from bona fide  transactions in the
ordinary course of business,  and all such accounts  payable have been paid, are
not yet due and payable  under  MicroLegend's  payment  policies and  procedures
(copies  of which  have been  previously  been  provided  to PTI),  or are being
contested by MicroLegend in good faith and by appropriate measures.

4.26 Inventory and Backlog.  The inventories of MicroLegend and its Subsidiaries
as of the date hereof  consist of raw  materials,  goods in process and finished
goods  saleable or usable in the normal course of  MicroLegend's  business,  and
such  inventories are, and shall be at Closing,  at levels  consistent with past
practices of  MicroLegend's  business.  All such  inventories are carried on the
books of  MicroLegend  and its  Subsidiaries  pursuant  to the normal  inventory
valuation  policies of MicroLegend,  which are in accordance with Canadian GAAP,
as  reflected  in the  Financial  Statements.  Any  expected  losses on customer
contracts  in progress are  recognized  and recorded in the period in which such
losses are determined. Schedule 4.26 sets forth the locations of all inventories
of MicroLegend and the amount of inventory at each location as of July 31, 1999.
Except as set forth in  Schedule  4.26,  no items  included  in  inventories  of
MicroLegend and its Subsidiaries are or will be pledged as collateral or held by
MicroLegend on consignment from others. MicroLegend is not committed to purchase
inventories in amounts greater than are reasonably expected to be useable in the
ordinary course of MicroLegend's  business as presently conducted.  With respect
to inventories in the hands of suppliers for which MicroLegend will be committed
on the Closing  Date,  such  inventories  on the Closing Date will be reasonably
expected to be useable in the  ordinary  course of business as  presently  being
conducted.  At July 31, 1999,  the backlog of firm orders from  MicroLegend  was
$1,105,223.50.  Schedule 4.26 sets forth each order of such backlog in excess of
$50,000 and the scheduled or committed delivery date thereof.

4.27  Customers and  Suppliers.  Schedule 4.27 sets forth a correct and complete
list  of  the  ten  largest  (by  dollar  volume)  customers  and  suppliers  of
MicroLegend  during the most  recently  completed  fiscal year,  indicating  the
existing contractual arrangements,  if any, with each such customer or supplier.
Except as set forth on Schedule 4.27, there are no outstanding disputes with any
customer or supplier  listed thereon and no customer or supplier  listed thereon
has  refused  to  continue  to do  business  with  MicroLegend  or has stated to
MicroLegend its intention not to continue to do business with  MicroLegend or to
materially  change the amount or terms of the  business  done with  MicroLegend.
Since July 31, 1999, there has not been any material  shortage or unavailability
of the raw materials  necessary to manufacture  the products sold by MicroLegend
and,  to  the  knowledge  of  MicroLegend,  there  is  no  current  shortage  or
unavailability which leads it to believe that any such shortages will occur.

4.28 Product  Warranties.  True and correct copies of all written warranties and
guarantees  applicable  to  MicroLegend  and its products and services have been
made  available  to PTI.  The  amounts  reflected  as  warranty  reserves in the
Financial  Statements are  commercially  reasonable and have been  determined in
accordance with Canadian GAAP,  consistently applied.  There are no existing or,
to the knowledge of MicroLegend, threatened product liability, warranty or other
similar  claims with respect to the business of  MicroLegend,  or any facts upon
which a material claim of such nature could be based, against MicroLegend or any
of its  Subsidiaries  or their  products  for  products  or  services  which are
defective or fail to meet any product or service  warranties except as disclosed
on Schedule 4.28. As relates to the business of  MicroLegend,  no claim has been
asserted against  MicroLegend for renegotiation or price  redetermination of any
business transaction,  and there are no facts upon which any such claim could be
based.

4.29 Year 2000.  MicroLegend's  Technology will correctly  differentiate between
years in  different  centuries,  which  years end in the same two  digits,  will
accurately and consistently  receive,  provide,  store and process date and time
data before,  during and after January 1, 2000,  including,  but not limited to,
accepting, calculating, comparing, providing, and sequencing date and time data,
from, into and between the 20th and 21st centuries, including the years 1999 and
2000 and leap year calculations,  and will not, malfunction (in whole or in part
at any  time  and for any  length  of  time,  and  whether  or not  causing  the
Technology,  in whole or in part, to become or remain  inoperable for any length
of time), cease to function,  or provide or product invalid or incorrect results
as a result of date and time data.  Schedule  4.29 sets forth a  description  of
MicroLegend's  program of obtaining Year 2000  certification  from its suppliers
and other third parties with whom MicroLegend  transacts business.  For purposes
of this  Section  4.29,  "Technology"  means  any and  all  software,  hardware,
firmware,   embedded  micro  controllers  in  non-computer  equipment  or  other
information  technology  owned by,  leased,  licensed or loaned to, or otherwise
used by  MicroLegend,  or licensed,  sold or otherwise  distributed to others by
MicroLegend, in the course of its business

4.30  Banking  Relations.  All of the  arrangements  which  MicroLegend  and its
Subsidiaries  have with any banking  institution  or similar  commercial  credit
facility are completely and  accurately  described in Schedule 4.30,  indicating
with respect to each of such  arrangements  the type of  arrangement  maintained
(such as checking account,  borrowing arrangements,  safe deposit box, etc.) and
the person or persons  authorized to act on behalf of  MicroLegend  with respect
thereto.

4.31  Disclosure.  Neither the  provisions  of this  Agreement  with  respect to
MicroLegend  and its  Subsidiaries,  nor the Schedules nor any other document or
written  information  furnished to PTI or its representatives by or on behalf of
MicroLegend  or any of its  Subsidiaries  pursuant  hereto,  includes any untrue
statement of a material  fact or omits to state any material  fact  necessary in
order to make the statements made herein and therein not misleading.

Article 5.        REPRESENTATIONS AND WARRANTIES OF PTI


         PTI represents and warrants to MicroLegend as follows:

5.1  Incorporation,  Standing and Power. PTI is a corporation duly incorporated,
validly  existing and in good standing  under the laws of the State of Delaware.
Sub is a CBCA  corporation  duly  incorporated,  validly  existing  and in  good
standing  under the laws of the Dominion of Canada.  Each of PTI and Sub has all
requisite corporate power and authority to own, lease and operate its properties
and to carry on its business as now being  conducted,  and is duly qualified and
in good standing to do business in each  jurisdiction in which the nature of its
business or the ownership or leasing of its properties makes such  qualification
necessary,  other  than in such  jurisdictions  where the  failure so to qualify
would not have a Material Adverse Effect on PTI and its Subsidiaries  taken as a
whole.  Pursuant to the  provisions of its Amended and Restated  Certificate  of
Incorporation,  PTI is precluded  from  obtaining  any  stockholder  approval by
written consent.

5.2  Authority.  Each  of PTI and Sub has  all  requisite  corporate  power  and
authority  to enter  into this  Agreement  and to  consummate  the  transactions
contemplated  hereby.  The  execution  and  delivery of this  Agreement  and the
consummation of the transactions  contemplated  hereby have been duly authorized
by all necessary corporate action on the part of PTI and Sub. This Agreement has
been duly  executed and delivered by PTI and Sub and  constitutes  the valid and
binding obligation of PTI and Sub,  enforceable  against them in accordance with
its terms,  except as the  enforceability  hereof may be limited by  bankruptcy,
insolvency or other laws relating to or affecting  creditors'  rights  generally
and general principles of equity  (regardless of whether such  enforceability is
considered in a proceeding in equity or at law).

5.3 No Conflict.  The execution and delivery of this Agreement by PTI and by Sub
does not, and the consummation of the transactions  contemplated  hereby and the
fulfillment of the  obligations and  undertakings  hereunder will not, result in
any Violation of any provision of the Certificate of Incorporation or By-laws of
PTI or of Sub, any Contract  applicable  to PTI, Sub or any of their  respective
assets,  or any  Legal  Requirement  applicable  to  PTI,  Sub  or any of  their
respective assets, except, in the case of Contracts and Legal Requirements,  for
Violations  which  could not  reasonably  be  expected,  individually  or in the
aggregate,  to have any adverse effect on the validity or enforceability of this
Agreement or a Material Adverse Effect on the operations or financial  condition
of PTI and its  Subsidiaries  taken as a whole. No consent,  approval,  order or
authorization of, or registration,  declaration or filing with, any Governmental
Entity is  required  by or with  respect  to PTI or Sub in  connection  with the
execution and delivery of this Agreement by PTI and Sub or the  consummation  by
PTI and Sub of the transactions  contemplated hereby, except for the filing of a
premerger notification report by PTI, if required, under the HSR Act, the filing
with the SEC of the  Registration  Statement and such reports under the Exchange
Act as may be required in connection with this Agreement and the consummation of
the  transactions  contemplated  hereby,  and the obtaining from the SEC of such
orders  as may be so  required,  the  filing  of such  documents  with,  and the
obtaining of such orders from,  state  authorities,  including state  securities
authorities, and Canadian securities authorities that are required in connection
with the transactions contemplated by this Agreement, the filing contemplated by
Section  2.2,  and  such  consents,   approvals,   orders,   authorizations   or
registrations  the failure to obtain  which could not  reasonably  be  expected,
individually or in the aggregate,  to have any adverse effect on the validity or
enforceability  of this Agreement or a Material Adverse Effect on the operations
or financial condition of PTI and its Subsidiaries taken as a whole.

5.4 SEC Documents.  PTI has made  available to  MicroLegend a true,  correct and
complete  copy of PTI's Annual  Report on Form 10-K for the year ended  December
31, 1998,  quarterly reports on Form 10-Q for the quarters ended March 31, 1999,
June 30, 1999 and September 30, 1999,  and  definitive  proxy  statement for the
Annual Meeting of  Stockholders of PTI held on June 8, 1999, all as filed by PTI
with the SEC  (collectively,  the "PTI SEC  Documents").  As of their respective
dates,  the PTI  SEC  Documents  complied  in all  material  respects  with  the
requirements  of the  Securities  Act and Exchange  Act, and none of the PTI SEC
Documents  contained any untrue statement of a material fact or omitted to state
a  material  fact  required  to be  stated  therein  or  necessary  to make  the
statements  therein,  in light of the circumstances  under which they were made,
not  misleading.  The  financial  statements  of PTI  included  in the  PTI  SEC
Documents  are  complete,  accurate  and comply in all  material  respects  with
applicable accounting  requirements and with the published rules and regulations
of the SEC with respect thereto,  have been prepared in accordance with American
GAAP applied on a consistent basis during the periods involved (except as may be
indicated in the notes thereto or, in the case of the unaudited  statements,  as
permitted by Form 10-Q of the SEC) and fairly present  (subject,  in the case of
the  unaudited   statements,   to  normal,   recurring  audit  adjustments)  the
consolidated  financial position of PTI and its consolidated  Subsidiaries as at
the dates  thereof and the  consolidated  results of their  operations  and cash
flows for the periods then ended.

5.5 Information Supplied.  The Registration Statement and the prospectus forming
a part thereof (the "Prospectus")  will, at the time the Registration  Statement
becomes  effective under the Securities Act, not contain any untrue statement of
a material fact or omit to state any material fact required to be stated therein
or  necessary  to make the  statements  therein not  misleading.  At the time it
becomes  effective  under the Securities  Act, the  Registration  Statement will
comply as to form in all material respects with the provisions of the Securities
Act. Notwithstanding the foregoing, PTI makes no representation or warranty with
respect to any  information  contained in the  Registration  Statement which was
furnished by MicroLegend.

5.6  Capital  Structure.  The  authorized  capital  stock  of  PTI  consists  of
15,000,000  shares of PTI Common Stock, and 1,000,000 shares of Preferred Stock,
par value  $.01 per  share.  At the close of  business  on  November  29,  1999,
11,205,218 shares of PTI Common Stock were issued;  936,168 shares of PTI Common
Stock were subject to issuance upon exercise of  outstanding  rights under PTI's
stock option plan;  112,500  shares of PTI Common Stock were subject to issuance
upon exercise of outstanding  warrants;  140,439 shares of PTI Common Stock were
held by PTI in its treasury;  and no shares of such Preferred  Stock were issued
or outstanding.  All outstanding  shares of PTI Common Stock are validly issued,
fully paid and non-assessable and not subject to preemptive rights.

5.7 Acquisition Consideration. The PTI Common Stock constituting the Acquisition
Consideration  has been duly authorized  and, when issued and delivered  against
receipt  of  the  Exchangeable   Shares  exchanged  therefor  pursuant  to  this
Agreement,   will  be  duly   authorized,   validly   issued,   fully  paid  and
non-assessable and free of preemptive rights of any security holder of PTI.

5.8  Absence  of  Certain  Changes or  Events.  Except as  contemplated  by this
Agreement,  since  September 30, 1999, PTI and its  Subsidiaries  have conducted
their respective businesses only in the ordinary and usual course, and there has
not been any  material  adverse  change in the  operations,  assets or financial
condition of PTI or any of its Subsidiaries,  any material damage,  destruction,
loss or casualty to any assets of PTI or any of its Subsidiaries, whether or not
covered by  insurance,  which assets are material to the ongoing  operations  or
business of PTI or any of its  Subsidiaries  as presently  conducted,  any sale,
assignment,  transfer or disposition of any item of plant, property or equipment
of the facilities occupied by PTI or its Subsidiaries having a net book value in
excess of  $500,000  (other than  supplies),  except in the  ordinary  course of
business; any material change in any method of accounting or accounting practice
by PTI or any of its Subsidiaries, any declaration,  setting aside or payment of
any dividend or other  distribution  (whether in cash,  stock or property)  with
respect to any of PTI's capital stock; or any transaction,  commitment,  dispute
or other event or condition  individually  or in the aggregate  having or which,
insofar as reasonably  can be foreseen,  in the future is  reasonably  likely to
have, a Material Adverse Effect on the operations, assets or financial condition
of PTI and its Subsidiaries taken as a whole.

5.9  Litigation.   There  is  no  action,  suit,   proceeding,   arbitration  or
investigation  pending  or,  to the  knowledge  of PTI,  threatened  against  or
affecting PTI, any of its  subsidiaries or any facility  occupied by PTI (or any
of their respective officers or directors in connection with the business of PTI
or any of its Subsidiaries),  which if adversely  determined could reasonably be
expected, individually or in the aggregate, to have a Material Adverse Effect on
the  operation or financial  condition  of PTI and its  Subsidiaries  taken as a
whole,  nor is there  any  judgment,  injunction,  decree,  rule or order of any
Governmental   Entity  or  arbitrator   outstanding  against  PTI,  any  of  its
Subsidiaries or any facility occupied by PTI which could reasonably be expected,
individually or in the aggregate, to have such an effect.

5.10  Compliance  with  Legal  Requirements.  The  businesses  of  PTI  and  its
subsidiaries  are being,  and since September 30, 1999, have been,  conducted in
compliance  with all Legal  Requirements,  except for such violations that could
not reasonably be expected, individually or in the aggregate, to have a Material
Adverse  Effect  on  the  operations  or  financial  condition  of PTI  and  its
Subsidiaries  taken as a whole.  To the  knowledge of PTI, no  investigation  or
review by any Governmental Entity with respect to PTI or any of its Subsidiaries
is pending or threatened, nor has any Governmental Entity indicated an intention
to conduct the same.

5.11  Disclosure.  Neither the  provisions of this Agreement with respect to PTI
and Sub nor any other document or written  information  furnished to MicroLegend
or its  representatives by or on behalf of PTI or Sub pursuant hereto,  includes
any untrue  statement  of a material  fact or omits to state any  material  fact
necessary  in  order  to  make  the  statements  made  herein  and  therein  not
misleading.

Article 6.        COVENANTS OF MICROLEGEND


         During the period from the date of this Agreement and continuing  until
the Closing  Date,  and where  applicable  after the Closing  Date,  MicroLegend
agrees,  for itself  and its  Subsidiaries,  to  perform  as follows  (except as
otherwise  expressly  contemplated  or  permitted by this  Agreement,  or to the
extent that PTI otherwise consents in writing):

6.1 Ordinary Course.  Each of MicroLegend and its Subsidiaries will carry on its
business in  substantially  the same manner as has heretofore been conducted and
not make any material change in its Articles of Incorporation or By-laws (except
as  contemplated  by  the  Acquisition),  the  personnel,  operations,  finance,
accounting  practices or policies or assets,  maintain its properties and assets
and all parts  thereof in good working  order and  condition,  ordinary wear and
tear excepted,  perform all of its obligations under the Material Agreements and
not enter into, amend or terminate any Material Agreement except in the ordinary
course of business,  take all reasonable  actions  necessary and  appropriate to
obtain appropriate  releases,  consents,  estoppels and other instruments as PTI
may reasonably request, neither cancel, nor allow to lapse nor make any material
change in the coverage of any insurance policy  applicable to MicroLegend or any
of its Subsidiaries,  pay all Taxes as they become due, confer with PTI prior to
the filing of any tax return, protest or notice of objection by it or any of its
Subsidiaries  and not take  any  position  with  respect  to Taxes to which  PTI
reasonably  objects,  use its best efforts to maintain and preserve its business
organization intact,  retain employees at the facilities occupied by MicroLegend
(except for employment terminations in accordance with past practices), maintain
relationships  with suppliers,  customers and others having  business  relations
with MicroLegend consistent with the terms of such relationships,  and take such
other  actions as are necessary to cause the smooth,  efficient  and  successful
transition of such business  operations and employee and other  relations at the
Closing  Date,  neither  make  offers of  employment  to any Persons for periods
subsequent  to the Closing Date  (except for offers made in the ordinary  course
for  employment  on an at will  basis),  nor enter into any  Employee  Plan with
respect  thereto,  nor incur or agree to incur any liability not in the ordinary
course of business,  except for those  offers,  Employee  Plans and  liabilities
currently under  negotiation  and identified in Schedule 6.1,  neither adopt nor
amend in any material respect any Employee Plan, not increase the  compensation,
in any form,  payable or to become payable to any director,  officer,  employee,
consultant  or  agent,  except  for  employees'  compensation  increases  in the
ordinary  course of business in  accordance  with existing  personnel  policies,
except as set forth in Schedule 6.1, not incur any indebtedness or guarantee any
indebtedness  except in the  ordinary  course of business  consistent  with past
practices,  nor issue any debt  securities,  not create or assume any  mortgage,
pledge or other lien or encumbrance upon any of its assets, irrespective of when
acquired,  other  than  Permitted  Encumbrances,  neither  acquire  nor agree to
acquire by merging or consolidating  with, or by purchasing a substantial equity
interest in or a  substantial  portion of the assets of, or by any other manner,
any Person, neither make nor authorize any purchase order or capital expenditure
in excess of $10,000  except in the  ordinary  course of  business  or except as
identified in Schedule 6.1, neither sell, lease,  assign nor otherwise  transfer
or dispose of any assets (other than supplies), except in the ordinary course of
business,  not amend,  terminate or waive any right  related to the  MicroLegend
business,  except in the  ordinary  course of  business,  and not take any other
action outside the ordinary course of business that would  materially  adversely
affect the business operations of MicroLegend or any of its Subsidiaries.

6.2  Dividends;  Changes  in  Stock.  MicroLegend  will not  declare  or pay any
dividends, whether in cash, stock or otherwise, nor make any other distributions
in respect of the  MicroLegend  capital  stock,  split,  combine,  reclassify or
recapitalize  the MicroLegend  capital stock or issue,  authorize or propose the
issuance of any other  securities  in respect of, in lieu of or in  substitution
for shares of MicroLegend  capital stock, or repurchase or otherwise acquire, or
permit any of its Subsidiaries to purchase or otherwise  acquire,  any shares of
MicroLegend capital stock.

6.3 Issuance of Securities.  MicroLegend will not, nor will it permit any of its
Subsidiaries  to issue,  deliver or sell,  or authorize or propose the issuance,
delivery or sale of, any shares of its or their capital stock or any  securities
convertible into any such shares, or convertible securities,  or grant any Stock
Rights.

6.4  MicroLegend  Permits.  MicroLegend and its  Subsidiaries  will maintain all
MicroLegend Permits in full force and effect, will cooperate and take all action
reasonably  necessary  to assist  Sub and PTI in  obtaining  the  benefit of the
MicroLegend  Permits,  and will promptly  provide PTI with copies of all filings
made with any Governmental Entity.

6.5 Advice of Changes.  MicroLegend  will confer on a regular and frequent basis
with PTI,  report on operational  matters and promptly  advise PTI orally and in
writing of any change or event having,  or which,  insofar as can  reasonably be
foreseen,  could have, a Material  Adverse  Effect on  MicroLegend or any of its
Subsidiaries  or on the  ability  of  MicroLegend  to  perform  its  obligations
hereunder.  Except  as may  otherwise  be set  forth in  writing  signed  by the
parties,  MicroLegend  acknowledges  that PTI does  not and will not  waive  any
rights it may have under this Agreement as a result of such  consultations,  nor
will PTI be  responsible  for any decisions made by  MicroLegend's  officers and
directors with respect to matters which are the subject of such consultation.

6.6 Access.  MicroLegend  and its  Subsidiaries  will  afford to the  authorized
representatives, agents and legal counsel of PTI full and complete access to the
staff, employees and other personnel of MicroLegend and its Subsidiaries, and to
the facilities  occupied by MicroLegend,  the assets and the books,  records and
other  information of MicroLegend and its  Subsidiaries,  including the right to
inspect  the same and  conduct  audits  and  verifications  thereof,  (provided,
however,  PTI has first provided reasonable notice of such access and inspection
and conducts the same during normal  business  hours and in such a manner as not
to interfere  unreasonably  with the conduct of the business of MicroLegend  and
its  Subsidiaries),  and no such  inspections  will  have  taken  place,  and no
employees or other  personnel of  MicroLegend  will have been  contacted by PTI,
without  PTI first  having  coordinating  such  inspection  or contact  with the
MicroLegend's Chief Executive Officer;  and provided further that no such access
or inspection by PTI will limit the effect of MicroLegend's  representations and
warranties contained in this Agreement.

6.7 No  Solicitations.  MicroLegend  will not, prior to the  consummation of the
transactions   contemplated  by  this  Agreement  or  the  termination  of  this
Agreement,  whichever  occurs first,  nor will it permit any of its Subsidiaries
to, nor will it authorize or permit any of its officers,  directors or employees
or any  investment  banker,  financial  advisor,  attorney,  accountant or other
representative  retained  by it or by  any  of its  Subsidiaries  to,  initiate,
solicit,  encourage (by way of furnishing non-public  information or otherwise),
negotiate or take any other action to facilitate  any inquiries or the making of
any proposal  which  constitutes,  or may reasonably be expected to lead to, any
proposal  or offer to acquire  all or any  substantial  part of the  business or
assets of  MicroLegend  and its  Subsidiaries,  or a controlling  portion of the
capital stock of MicroLegend,  whether by merger,  consolidation,  amalgamation,
purchase of assets, tender offer, exchange offer or otherwise, whether for cash,
securities  or  any  other   consideration  or  combination  thereof  (any  such
transaction being called an "Acquisition Transaction"), nor entertain, agree to,
endorse,  participate  in any  discussions  or  negotiations  or  recommend  any
Acquisition Transaction, unless PTI has terminated this Agreement for any reason
or unless MicroLegend has terminated their Agreement in accordance with the term
hereof.  In the event that  MicroLegend,  any of its  Subsidiaries or any of its
officers,   directors,   employees,   investment  bankers,  financial  advisors,
attorneys,   accountants  or  other  representatives   receives  any  inquiries,
proposals  or offers as  contemplated  by this  Section  6.7,  MicroLegend  will
promptly inform PTI as to that fact and furnish to PTI the specifics thereof. In
the event that MicroLegend  breaches its promise  contained in this Section 6.7,
PTI may  terminate  this  Agreement  and, if it does so,  then at PTI's  request
MicroLegend  shall immediately pay to PTI a cancellation fee of $150,000 plus an
amount equal to its  out-of-pocket  expenses  (including  legal,  accounting and
investment  banking  fees and  expenses)  incurred  by PTI with  respect  to the
Acquisition  ("Expenses"),  which  Cancellation  Fee and Expenses shall be PTI's
sole remedy for a breach by  MicroLegend  of this Section 6.7 and the  aggregate
potential liability of MicroLegend for any such breach shall be so limited.

6.8 Cooperation in Preparation of Registration Statement,  Etc. MicroLegend will
promptly  cooperate with PTI in its  preparation  and filing with the SEC of the
Registration  Statement and the Prospectus,  will cause its independent auditors
to cooperate in the  preparation of financial  statements  for the  Registration
Statement  and  Prospectus,  and PTI  will  use its  best  efforts  to have  the
Registration  Statement  declared effective under the Securities Act as promptly
as  practicable  after such filing and prior to January 31, 2000. PTI shall keep
such Registration  Statement and Prospectus  effective until the earlier of five
years  from the  Closing  Date or the date on which the  Representatives  of the
Shareholders shall inform PTI that the Registration Statement and Prospectus are
no longer required.

6.9  Preparation  of  Additional   Financial   Statements.   At  PTI's  expense,
MicroLegend will cause Ernst and Young LLP, its certified public accountants, to
prepare and deliver to PTI unaudited  financial  statements of  MicroLegend  for
each of the twelve months ended December 31, 1995,  1996,  1997 and 1998 and for
each calendar quarter during 1998 and 1999, which financial  statements shall be
stated in US dollars and prepared in accordance with American GAAP.

6.10 Letter of  MicroLegend's  Accountants.  At PTI's expense,  MicroLegend will
cause to be  delivered  to PTI a  letter  of  Ernst & Young  LLP,  MicroLegend's
independent  auditors,  dated a date within two business days before the date on
which the Registration Statement becomes effective and addressed to PTI, in form
and  substance  reasonably  satisfactory  to PTI  and  customary  in  scope  and
substance for letters delivered by independent  public accountants in connection
with registration statements similar to the Registration Statement.

6.11  Affiliates.  Prior to the Closing Date,  MicroLegend will deliver to PTI a
letter  identifying  all  Persons  who are,  as of the  date of this  Agreement,
Affiliates of  MicroLegend  for purposes of Rule 145 under the  Securities  Act.
MicroLegend  will use its best  efforts to cause each such  Person to deliver to
PTI on or prior to the Closing  Date a written  agreement  substantially  in the
form of Exhibit C attached hereto (the "Affiliates' Agreements").

6.12  Transaction  Expenses.  The  aggregate  expenses  not paid in the ordinary
course by MicroLegend in connection with this Agreement and the  consummation of
all of the transactions contemplated hereby ("Transaction Expenses"),  including
fees  and  expenses  paid  to  MicroLegend's  directors,   officers,  attorneys,
accountants and advisors,  will not,  commencing  August 31, 1999 and continuing
through the Closing Date, exceed $25,000.  The Transaction Expenses shall not be
booked on the Pre-Closing Balance Sheet as hereinafter defined as a liability in
accordance  with Canadian GAAP, but rather,  to the extent paid by  MicroLegend,
shall be added back to the assets of MicroLegend.

6.13  Shareholders'  Representation  Agreements.   MicroLegend  will  cause  all
MicroLegend   shareholders  to  execute  and  deliver  to  PTI  a  Shareholder's
Representation  Agreement substantially in the form of Exhibit D attached hereto
(the   "Shareholder's   Representation   Agreement")   which   imposes   certain
restrictions regarding the resale of PTI Common Stock received upon the exercise
of rights of holders of Exchangeable  Shares. PTI shall be entitled to place the
legends  as  set  forth  in  the  Shareholder  Representation  Agreement  on the
certificates  representing  any PTI Common  Stock or  Exchangeable  Shares to be
received  by such  shareholders  of  MicroLegend  pursuant  to the terms of this
Agreement, and to issue appropriate stop transfer instructions to PTI's transfer
agent  regarding   PTI's  Common  Stock,   consistent  with  the  terms  of  the
Shareholder's Representation Agreements.

6.14   Tangible  Net  Worth.   MicroLegend   shall  cause  Ernst  &  Young  LLP,
MicroLegend's certified public accountants,  to prepare and deliver to PTI prior
to Closing a balance sheet of  MicroLegend as of a date within five (5) business
days prior to the Closing Date (the "Pre-Closing Balance Sheet"),  which balance
sheet shall be  accompanied  by a review of Ernst & Young LLP,  stating that the
Pre-Closing  Balance Sheet has been prepared in accordance  with American  GAAP,
and by a statement of Ernst & Young LLP setting  forth the Tangible Net Worth of
MicroLegend as of the date of the Pre-Closing Balance Sheet.

6.15  Pooling  Opinion.  Ernst  &  Young  LLP,  MicroLegend's  certified  public
accountants, shall furnish to PTI and its legal counsel on or before the Closing
Date their opinion in form and substance  satisfactory  to PTI and its certified
public  accountants  to the effect that prior to the Closing  Date there were no
events, conditions or circumstances involving MicroLegend,  its Subsidiaries and
its  shareholders  that would,  or could  reasonably  be deemed to,  prevent the
Acquisition from qualifying as a Pooling.

Article 7.        COVENANTS OF PTI


         During the period from the date of this Agreement and continuing  until
the Closing Date, PTI agrees to perform as follows:

7.1  Preparation of Registration  Statement,  Etc. Within thirty (30) days after
the Closing Date, PTI will promptly prepare the  Registration  Statement and the
Prospectus  and  file the  same,  and  will  use its  best  efforts  to have the
Registration  Statement  declared effective under the Securities Act as promptly
as  practicable  after such filing and prior to January 31, 2000.  PTI will also
take any action (other than qualifying to conduct  business in any  jurisdiction
in which it is now not so qualified)  required to be taken under any  applicable
state or  provincial  securities  laws in  connection  with the  issuance of PTI
Common Stock and Exchangeable Shares in the Acquisition.

7.2 NASDAQ  Listing.  As soon as  practicable  after the Closing Date, but in no
event later than  December 31, 1999,  PTI will use its best efforts to cause the
shares of PTI Common Stock to be issued in the  Acquisition  to be listed on the
NASDAQ National Market, subject only to official notice of issuance.

7.3 Employees.  PTI and MicroLegend have identified key management and technical
employees of MicroLegend as identified on Schedule 7.3 (the  "Employees").  As a
condition of Closing,  each of such Employees  shall have executed and delivered
to PTI or its legal counsel an executed  Employment  Agreement  substantially in
the form of Exhibit E-1 attached to this Agreement (the "Employment Agreement").
PTI intends to expand the  organization  of  MicroLegend.  On or before Closing,
MicroLegend shall offer continued  employment to all of the remaining  employees
of  MicroLegend.  As a condition  precedent to such  employment,  such remaining
employees shall be required to execute an Employment Agreement  substantially in
the form of Exhibit E-2  attached to this  Agreement  (the  "Remaining  Employee
Employment  Agreement").  In addition, and notwithstanding the generality of the
foregoing,  it shall be a condition of Closing that  MicroLegend will enter into
employment  agreements  with  each  of  Thomas  Blain  and  Reginald  T.  Cable,
substantially  in the  form  of  Exhibit  F  attached  to  this  Agreement  (the
"Principal  Shareholder  Employment  Agreements").  PTI shall grant  options for
50,000  shares of PTI Common  Stock to each of the  Principal  Shareholders  and
options  up to an  aggregate  80,000  shares  of PTI  Common  Stock to all other
employees of MicroLegend as agreed upon by PTI and the Principal Shareholders.

Article 8.        ADDITIONAL COVENANTS OF EACH PARTY

8.1 Additional Agreements;  Best Efforts. Subject to the terms and conditions of
this  Agreement,  each of the parties  agrees to use its best efforts to take or
cause  to be  taken  all  action,  and to do or  cause  to be  done  all  things
necessary,   proper  or  advisable  under  applicable  Legal  Requirements,   to
consummate and make effective the  transactions  contemplated by this Agreement,
including  cooperating fully with the other parties,  providing  information and
making all necessary filings in connection with, among other things, the HSR Act
if required,  the Securities Act, the Investment Canada Act and state securities
Legal  Requirements.  Each of the  parties  will  take or cause to be taken  all
reasonable  actions  necessary to obtain (and will  cooperate with each other in
obtaining)  any consent,  authorization,  order or approval of, or any exemption
by, any Governmental Entity or other public or private third party,  required to
be obtained or made by any of them in  connection  with the  Acquisition  or the
taking of any action contemplated by this Agreement.

8.2 Expenses.  PTI and  MicroLegend  will each bear its  respective  Expenses in
connection  with  the  transactions  contemplated  hereby,  whether  or not  the
Acquisition is consummated;  provided, however, that PTI shall pay up to $20,000
of MicroLegend's legal expenses incurred in connection with the MOU and up to an
additional  $30,000 of  MicroLegend's  legal expenses after the execution of the
MOU if the Acquisition is not consummated for any reason.

8.3 Brokers or Finders. Each party represents,  as to itself and its Affiliates,
that no agent, broker,  investment banker,  financial advisor or other Person is
or will be entitled to any broker's or finder's fee or any other  commission  or
similar fee in  connection  with any of the  transactions  contemplated  by this
Agreement,  except Tucker Anthony  Cleary Gull,  whose fees and expenses will be
paid by PTI in  accordance  with PTI's  agreement  with such firm and except for
LaBarge Weinstein and Prescient Advisory Services,  whose fees and expenses will
be paid by MicroLegend in accordance with MicroLegend's agreement with such firm
(a true,  correct and complete copy of which has been  delivered to PTI prior to
the date hereof).

8.4 Pooling.  From and after the date hereof and until the Closing Date, neither
PTI nor MicroLegend nor any of their respective Subsidiaries or other Affiliates
will  knowingly  take any action,  or knowingly  fail to take any action,  which
would  jeopardize  PTI's ability to account for the  Acquisition as a Pooling or
enter into any Contract  with respect to the  foregoing.  Following  the Closing
Date, PTI will use its best efforts to conduct the business of MicroLegend,  and
will cause  MicroLegend  to use its best efforts to conduct its  business,  in a
manner which would not jeopardize  PTI's ability to account for the  Acquisition
as a Pooling.

8.5 Cooperation re Canadian Taxes. The parties hereto shall cause Sub to jointly
elect with each Record Holder in Department of National  Revenue Form T2057, and
shall file such form within the prescribed time pursuant to Section 85(1) of the
Canadian  Tax Act,  as to the  amount  they have  agreed  upon to be the  Record
Holder's proceeds of the disposition of the shares of MicroLegend  capital stock
to Sub pursuant to this Agreement and Sub's cost of those shares.  The Principal
Shareholders  and Sub  agree  that the  amount  that  shall be  deemed to be the
proceeds  of the  disposition  of the  shares  and Sub's  cost of the  shares in
respect of which such  election  is made shall be the "cost  amount"  within the
meaning of the  Canadian  Tax Act, or such other amount as requested by a Record
Holder  between the "cost  amount"  and the fair  market  value of the shares of
MicroLegend  capital  stock  being sold by such Record  Holder  pursuant to this
Agreement.

8.6 Other Actions. Neither MicroLegend nor PTI will, nor will they permit any of
their  respective  Subsidiaries  to,  knowingly take any action that would or is
reasonably likely to cause any of its  representations  and warranties set forth
in this  Agreement to be untrue as of the date made or any of the  conditions to
the Acquisition set forth in Article 9 not to be satisfied. Prior to the Closing
Date,  each of the  parties  agrees  to use  its  best  efforts  to  obtain  the
satisfaction  of its  conditions to Closing as set forth in Article 9 as soon as
practicable,  facilitate  contacts,  negotiations  and  communications  with any
Persons  reasonably  necessary to insure a smooth  transition  of control of the
business  operations  of  MicroLegend,  and assist one another in obtaining  any
consents required or desirable from any Person to effect the consummation of the
transactions contemplated hereby.

8.7  Confidentiality.  PTI and Sub  (treated as one party for this  purpose) and
MicroLegend and its Subsidiaries  (each, the "First Party") will, and each First
Party  will  use  its  best   efforts  to  cause  its   Affiliates,   employees,
representatives  and  agents  to,  hold in strict  confidence  all  Confidential
Information of the other party (each,  the "Other Party"),  unless  compelled to
disclose the same by judicial or administrative process; provided, however, that
in either  such case the First  Party will  provide  the Other Party with prompt
prior  notice  thereof so that the Other  Party may seek a  protective  order or
other  appropriate  remedy and/or waive  compliance  with the provisions of this
Section  8.7.  In the event that such  protective  order or other  remedy is not
obtained,  or the Other Party waives compliance with the provisions  hereof, the
First Party will furnish only that portion of Confidential Information which, in
the written  opinion of the First Party's  counsel,  is required,  and the First
Party will exercise best efforts to obtain reliable  assurance that confidential
treatment will be accorded such of the disclosed Confidential Information as the
Other  Party  so  designates.  The  First  Party  will  not  otherwise  disclose
Confidential  Information  to any  person,  except with the consent of the Other
Party.  In the event that the  Acquisition is not  consummated,  the First Party
will promptly return all  Confidential  Information to the Other Party.  For the
purposes hereof,  "Confidential  Information"  means all information of any kind
concerning  the  Other  Party or any of its  Affiliates,  obtained  directly  or
indirectly  from  the  Other  Party  or  any  of  its   Affiliates,   employees,
representatives  or  agents in  connection  with the  transactions  contemplated
hereby,  except  information  (a)  ascertainable  or  obtained  from  public  or
published sources,  (b) received from a third party not known by the First Party
to be under an obligation to keep such information confidential, (c) which is or
becomes known to the public (other than through a breach of this Agreement),  or
(d) which was in the First Party's possession prior to disclosure thereof to the
First Party and which was not subject to any obligation to keep such information
confidential.  The First Party  recognizes  that any breach of the provisions of
this  Section 8.7 would  result in  irreparable  harm to the Other Party and its
Affiliates  and,  therefore,  that  the  Other  Party  will  be  entitled  to an
injunction  to  prohibit  any such  breach or  anticipated  breach,  without the
necessity of posting a bond, cash or otherwise,  in addition to all of its other
legal and equitable remedies.

8.8 Publicity.  Subject to Legal  Requirements,  the rules of the SEC and NASDAQ
and the  provisions of this  Agreement,  so long as this Agreement is in effect,
each party will use its best  efforts to assure  that the timing and  content of
any press  release or other public  statement  with respect to the  transactions
contemplated  by this Agreement will be determined by prior mutual  agreement of
the parties.

Article 9.        CONDITIONS PRECEDENT TO PARTIES' OBLIGATIONS

9.1  Conditions  to Each  Party's  Obligation  to Effect  the  Acquisition.  The
respective obligations of MicroLegend, PTI and Sub to effect the Acquisition are
subject to the  satisfaction  prior to the Closing Date of each of the following
conditions:

(a) Governmental  Approvals.  Other than the filing provided for by Section 2.2,
all licenses, franchises, certificates, permits, accreditations, authorizations,
consents,  orders or approvals  of, or  registrations,  declarations  or filings
with, or expirations of waiting periods imposed by, any Governmental  Entity the
failure to obtain which would have a Material Adverse Effect on the consummation
of the Acquisition,  will have occurred, been filed or been obtained,  including
any authorizations required under the HSR Act.

(b) No Injunctions or Restraints. No temporary restraining order, preliminary or
permanent   injunction   or  other  order  issued  by  any  court  of  competent
jurisdiction or other legal restraint or prohibition preventing the consummation
of the Acquisition  will be in effect,  and no shareholder of MicroLegend  shall
have  instituted any proceeding  alleging that the Acquisition was oppressive to
that shareholder or attempting to prevent the Closing.

9.2 Conditions of Obligations of PTI and Sub. The  obligations of PTI and Sub to
effect  the  Acquisition  are  subject  to the  satisfaction  of  the  following
additional conditions, unless waived by PTI:

(a)  Representations  and  Warranties.  The  representations  and  warranties of
MicroLegend set forth in this Agreement will be true and correct in all respects
as of the date of this  Agreement  and as of the Closing  Date as though made on
and as of the Closing Date, except as otherwise  contemplated by this Agreement,
and PTI will have received a certificate  signed on behalf of MicroLegend by its
Certifying Officers to such effect.

(b) Performance of Obligations of MicroLegend.  MicroLegend  will have performed
in all material  respects all  obligations  required to be performed by it under
this  Agreement at or prior to the Closing  Date,  and PTI will have  received a
certificate  signed on behalf of MicroLegend by its Certifying  Officers to such
effect.

(c) No Amendments to Resolutions.  Neither the Board of Directors of MicroLegend
nor any committee thereof will have amended, modified, rescinded or repealed the
resolutions  heretofore  adopted by the Board of  Directors  which  approve this
Agreement,  the  consummation  of the  Acquisition and the performance of all of
MicroLegend's and the Board of Directors'  obligations  hereunder,  and will not
have adopted any other  resolutions  in connection  with this  Agreement and the
transactions  contemplated  hereby  inconsistent with such resolutions,  and PTI
will  have  received  a  certificate  signed on  behalf  of  MicroLegend  by its
Certifying Officers to such effect.

(d) Articles of  Incorporation,  Certificate of Incorporation  and Good Standing
Certificates. PTI will have received a copy, certified by the appropriate public
official of the  Government of Canada as of a date  reasonably  proximate to the
Closing Date, of the complete  Articles of  Incorporation  of MicroLegend  and a
copy,  certified  by the  appropriate  public  official of the  jurisdiction  of
incorporation of any Subsidiary, of the complete Certificate of Incorporation of
such Subsidiary.  PTI will have received  certificates of good standing from the
appropriate  public  official of each  jurisdiction  of  MicroLegend's  and each
Subsidiary's  incorporation and of each jurisdiction  where MicroLegend and each
of its Subsidiaries is qualified to do business.

(e)  MicroLegend  Permits.  MicroLegend  and  its  Subsidiaries  will  have  all
MicroLegend  Permits  that are  necessary  or  appropriate  to  permit  the use,
ownership  and  operation of the  MicroLegend  business by Sub after  Closing in
substantially  the same manner as conducted by MicroLegend  immediately prior to
Closing,  and all such MicroLegend  Permits will be in full force and effect and
not subject to any pending or threatened proceedings to revoke, make conditional
or  adversely  modify,  limit,  or  otherwise  affect  the  authority,   rights,
privileges or permissions conveyed thereby.

(f) Consents  Under  Agreements.  MicroLegend  will have obtained the consent or
approval of each Person whose consent or approval is required in order to permit
the continuation or succession by MicroLegend pursuant to the Acquisition to any
obligation,  right or interest of MicroLegend or any of its  Subsidiaries  under
any  Contract,  except  those for which  failure  to obtain  such  consents  and
approvals  would not, in the reasonable  opinion of PTI,  individually or in the
aggregate,  have a  Material  Adverse  Effect  on the  operations  or  financial
condition  of  MicroLegend  and  its  Subsidiaries  taken  as a  whole  or  upon
consummation of the transactions contemplated hereby.

(g) Real Estate Matters.  PTI will have received  estoppel  certificates in form
satisfactory to PTI and its counsel from each landlord of a lease  identified on
Schedule 4.10(b) to the effect that MicroLegend,  or any MicroLegend Subsidiary,
as applicable, is not in default under such lease.

(h) Letter of and Opinion of MicroLegend's  Accountants.  PTI will have received
the letter of Ernst & Young LLP  referred to in Section  6.10 and the opinion of
Ernst & Young LLP referred to in Section 6.16.

(i) Affiliates' Agreements. PTI will have received from each Person named in the
letter   referred  to  in  Section  6.11  an  executed   copy  of  an  agreement
substantially in the form of Exhibit C.

(j) Shareholders'  Representation  Agreements. PTI shall have received from each
MicroLegend shareholder an executed Shareholder's Representation Agreement
substantially in the form of Exhibit D.

(k)   Pooling    Opinion.    PTI   will   have    received    the   opinion   of
PriceWaterhouseCoopers LLP, in form and substance reasonably satisfactory to it,
that the Acquisition will qualify as a Pooling.

(l) Financial Advisor's Opinion.  PTI will have received a final form of opinion
from  Tucker  Anthony  Cleary  Gull that the  consideration  to be  provided  to
MicroLegend's  shareholders  in connection with the Acquisition is fair to PTI's
stockholders from a financial point of view.

(m)  Legal  Opinion  of  LaBarge  Weinstein.   LaBarge  Weinstein,   counsel  to
MicroLegend, will have furnished to PTI their written opinion, dated the Closing
Date, in form acceptable to counsel for PTI.

(n)  Employment  Agreements.  Each of the  employees of  MicroLegend  shall have
executed and  delivered an  Employment  Agreement  substantially  in the form of
Exhibit E-1 or E-2, as  applicable,  attached  hereto and each of the  Principal
Shareholders  shall  have  executed  and  delivered  his  Principal  Shareholder
Employment Agreement substantially in the form of Exhibit F attached hereto.

(o)  Surrender of Name.  The  Principal  Shareholders  shall cause any Affiliate
other than MicroLegend to change its name so as not to conflict,  resemble or in
any way appear to be associated with the name "MicroLegend."

(p) Other Evidence. PTI will have received such other certificates,  instruments
and documents as it may reasonably  require to demonstrate  the  satisfaction of
the conditions set forth in this Section 9.2 or to be satisfied that MicroLegend
and/or any of its Subsidiaries comply with all applicable Legal Requirements and
the terms of this Agreement.

9.3 Conditions of Obligations of MicroLegend and Record Holders.  The obligation
of MicroLegend  and its Record  Holders to effect the  Acquisition is subject to
the  satisfaction of the following  conditions  unless waived by MicroLegend and
the Record Holders:

(a)  Representations  and Warranties.  The representations and warranties of PTI
and Sub set forth in this  Agreement will be true and correct in all respects as
of the date of this  Agreement  and as of the Closing Date as though made on and
as of the Closing Date, except as otherwise contemplated by this Agreement,  and
MicroLegend  will have  received  a  certificate  signed on behalf of PTI by its
Certifying Officer to such effect.

(b)  Performance  of Obligations of PTI and Sub. PTI and Sub will have performed
in all material respects all obligations  required to be performed by them under
this  Agreement  at or prior to the  Closing  Date,  and  MicroLegend  will have
received a certificate signed on behalf of PTI by its Certifying Officer to such
effect.

(c) No Amendments to Resolutions.  Neither the Board of Directors of PTI nor any
committee  thereof  will have  amended,  modified,  rescinded  or  repealed  the
resolutions  heretofore  adopted by the Board of  Directors  which  approve this
Agreement,  the  consummation  of the  Acquisition and the performance of all of
PTI's obligations hereunder,  and will not have adopted any other resolutions in
connection  with  this  Agreement  and  the  transactions   contemplated  hereby
inconsistent  with  such  resolutions,  and  MicroLegend  will have  received  a
certificate signed on behalf of PTI by its Certifying Officer to such effect.

(d) Legal  Opinion  of  Harter,  Secrest & Emery LLP and  Nelligan  Power,  LLP.
Harter,  Secrest  & Emery LLP and  Nelligan  Power,  LLP,  general  counsel  and
Canadian counsel to PTI, respectively,  will have furnished to MicroLegend their
written  opinions,  dated the Closing  Date,  in form  acceptable to counsel for
MicroLegend.

(e) Voting and Exchange  Trust  Agreement.  PTI and a suitable  Trustee of PTI's
choosing shall have executed a Voting and Exchange Trust Agreement substantially
in the form of Exhibit G attached hereto.

(f) Support Agreement. PTI and Sub shall have executed and delivered the Support
Agreement.

(g) Other  Evidence.  MicroLegend  will have received  such other  certificates,
instruments  and  documents  as it may  reasonably  require to  demonstrate  the
satisfaction of the conditions set forth in this Section 9.3.

Article 10.       COVENANTS AS TO POST-CLOSING MATTERS


         From and after the Closing  Date,  and until such time as is  expressly
provided by this  Agreement,  PTI agrees,  for itself and Sub,  and  MicroLegend
agrees, for the Record Holders as follows:

10.1  Support  Agreement.  For so long as  there  are  any  Exchangeable  Shares
outstanding,  PTI will cause Sub pursuant to the Support Agreement substantially
in the form  attached  hereto as  Exhibit H (the  "Support  Agreement"),  to the
extent  permitted by corporate law, to pay to each Record Holder  thereof,  such
amounts as will allow Sub to satisfy its  obligations  relative to the terms and
provisions of the Exchangeable Shares with respect to dividends, etc.

10.2     Escrow and Indemnification.

(a) Escrow Fund. On the Closing Date, 216,573  Exchangeable  Shares (the "Escrow
Shares") shall be registered in the name of, and be deposited with, the Exchange
Agent as Escrow  Agent,  such  deposit to  constitute  the Escrow Fund and to be
governed  by the terms set forth in the Escrow  Agreement  substantially  in the
form  attached  hereto as Exhibit I (the  "Escrow  Agreement").  The Escrow Fund
shall be available to compensate PTI pursuant to the indemnification obligations
of the shareholders of MicroLegend.  Subject to the provisions herein and in the
Escrow  Agreement,  the Escrow  Fund shall be held for one year  pursuant to the
Escrow Agreement, and the claims procedures established by the Escrow Fund shall
be followed by all parties in connection with the settlement of any claims.

(b) Escrow  Period.  The Escrow Period shall  terminate at the expiration of one
year after the Effective Date; provided,  however,  that a portion of the Escrow
Shares,  which, in the reasonable  judgment of PTI,  subject to the objection of
the  Representative  of the Shareholders  and the subsequent  arbitration of the
matter in the manner provided in Section 10.2(h) hereof, is necessary to satisfy
any  unsatisfied  claims  specified  in any  Officer's  Certificate  theretofore
delivered to the Escrow  Agent prior to  termination  of the Escrow  Period with
respect to facts and  circumstances  existing  prior to expiration of the Escrow
Period, shall remain in the Escrow Fund until such claims have been resolved.

(c) Indemnification by MicroLegend Shareholders.  Subject to the limitations set
forth in this Section  10.2,  the Principal  Shareholders  of  MicroLegend  will
severally, and all other MicroLegend Shareholders will severally,  indemnify and
hold harmless PTI and Sub and their respective officers,  directors,  agents and
employees,  and each  person,  if any,  who  controls  or may control PTI or Sub
within the meaning of the Securities Act  (hereinafter  referred to individually
as an  "Indemnified  Person")  from  and  against  any and all  liabilities  and
expenses arising from claims,  demands,  actions,  causes of action,  including,
without limitation,  reasonable legal fees, net of any recoveries under existing
insurance policies or indemnities from third parties  (collectively,  "Damages")
arising out of any  misrepresentation or breach of or default in connection with
any of the representations,  warranties,  covenants and agreements given or made
by MicroLegend in this Agreement,  the MicroLegend  Disclosure  Schedules or any
exhibit or schedule to this Agreement.  PTI and its Affiliates shall act in good
faith and in a commercially  reasonable  manner to mitigate any Damages they may
suffer.  The Escrow  Fund  established  pursuant to this  Section  10.2 shall be
security  for this  indemnity  obligation  subject  to the  limitations  in this
Agreement.

(d) Limitation.  PTI and MicroLegend each acknowledge that such Damages, if any,
would relate to unresolved  contingencies existing at the Closing Date, which if
resolved at the Closing  Date would have led to a reduction  in the total number
of shares PTI would have agreed to issue in connection  with the Acquisition and
this Agreement. Except as set forth hereinafter, nothing in this Agreement shall
limit the liability of (i)  MicroLegend or any  MicroLegend  shareholder for any
breach of any  representation,  warranty or covenant if the  Acquisition  is not
consummated,  or (ii) of any  MicroLegend  shareholder  in  connection  with any
breach by such  shareholder  of the Affiliate  Agreement  provided that any such
liability does not exceed the value of the consideration  received by the Record
Holder for that Record Holder's shares of MicroLegend capital stock.

(e) Damage  Threshold.  Notwithstanding  the foregoing,  PTI may not receive any
shares  from the  Escrow  Fund  unless  and until an  Officer's  Certificate  or
Certificates  (as  defined in Section  10.2(f)  below)  identifying  Damages the
aggregate  amount of which exceeds $150,000 plus the amount if any, by which the
Tangible Net Worth exceeds  $1,700,000 has been delivered to the Escrow Agent as
provided in Section 10.2(f) below and such amount is determined pursuant to this
Article 10 to be payable,  in which case PTI shall receive shares equal in value
to the  full  amount  of  Damages.  In  determining  the  amount  of any  Damage
attributable   to  a  breach,   any   materiality   standard   contained   in  a
representation, warranty or covenant shall be disregarded.

(f) Claims Upon Escrow Fund.

(i) Upon  receipt  by the  Escrow  Agent on or before the last day of the Escrow
Period  of  a  certificate   signed  by  any  officer  of  PTI  (an   "Officer's
Certificate"):

A. stating that Damages  existing in an aggregate  amount  greater than $150,000
plus the amount, if any, by which the Tangible Net Worth Exceeds $1,700,000, and

B. specifying in reasonable detail the individual items of such Damages included
in the amount so stated,  the date each such item was paid, or properly  accrued
or arose,  the nature of the  misrepresentation,  breach of warranty or claim to
which such item is related.

The Escrow Agent shall,  subject to the provisions of this Section 10.2, deliver
to PTI out of the Escrow Fund, as promptly as practicable,  shares of PTI Common
Stock or other  assets  held in the  Escrow  Fund  having a value  equal to such
Damages.

(ii) For the  purpose  of  compensating  PTI for its  Damages  pursuant  to this
Agreement,  each Escrow Share in the Escrow Fund shall be valued at the five day
average closing price of the PTI Common Stock  immediately  prior to the date on
which any Escrow Shares are to be released to PTI by the Escrow Agent.

(g) Objections to Claims.  At the time of delivery of any Officer's  Certificate
to the Escrow Agent,  a duplicate copy of such  Officer's  Certificate  shall be
delivered to the Representatives of the Shareholders (defined in Section 10.2(i)
below) and for a period of forty-five (45) days after such delivery,  the Escrow
Agent  shall make no  delivery of Escrow  Shares or other  property  pursuant to
Section  10.2(b)  hereof  unless the Escrow  Agent shall have  received  written
authorization  from either of the  Representatives  of the  Shareholders to make
such delivery.  After the  expiration of such  forty-five  (45) day period,  the
Escrow Agent shall make delivery of the Escrow  Shares or other  property in the
Escrow Fund in accordance  with Section  10.2(b)  hereof,  provided that no such
payment or delivery may be made if the  Representative of the Shareholders shall
object in a written  statement to the claim made in the  Officer's  Certificate,
and such  statement  shall have been  delivered  to the Escrow  Agent and to PTI
prior to the expiration of such forty-five (45) day period.

(h) Resolution of Conflicts; Arbitration.

(i) In case either of the Representatives of the Shareholders shall so object in
writing  to any claim or claims by PTI made in any  Officer's  Certificate,  PTI
shall  have  forty-five  (45)  days to  respond  in a written  statement  to the
objection of such Representatives of the Shareholders.  If after such forty-five
(45) day period there remains a dispute as to any claims, the Representatives of
the  Shareholders  and PTI shall  attempt  in good  faith for sixty (60) days to
agree upon the rights of the  respective  parties  with  respect to each of such
claims.  If the  Representatives  of the Shareholders and PTI should so agree, a
memorandum  setting forth such agreement shall be prepared and signed by PTI and
either of the  Representatives of the Shareholders and shall be furnished to the
Escrow Agent.  The Escrow Agent shall be entitled to rely on any such memorandum
and shall distribute the Escrow Shares or other property from the Escrow Fund in
accordance with the terms thereof.

(ii) If no such  agreement can be reached after good faith  negotiation,  either
PTI or either of the  Representatives of the Shareholders may, by written notice
to the other,  demand  arbitration of the matter unless the amount of the damage
or loss is at issue in pending  litigation  with a third  party,  in which event
arbitration  shall not be  commenced  until such amount is  ascertained  or both
parties  agree to  arbitration;  and in either  such event the  matter  shall be
settled by arbitration in accordance with the provisions hereof.  Within fifteen
(15) days after such written notice is sent, PTI and the  Representatives of the
Shareholders  shall attempt to agree on the appointment of a single  arbitrator.
If they are unable to do so, then within ten (10) days after the  expiration  of
such 15-day period,  PTI and either of the  Representatives  of the Shareholders
shall each select one  arbitrator,  and the two  arbitrators  so selected  shall
select a third  arbitrator.  The decision of the  arbitrators as to the validity
and  amount of any claim in such  Officer's  Certificate  shall be  binding  and
conclusive upon the parties to this Agreement,  and notwithstanding  anything in
Section 10.2(g) hereof,  the Escrow Agent shall be entitled to act in accordance
with such  decision  and make or  withhold  payments  out of the Escrow  Fund in
accordance therewith.

(iii) Judgment upon any award rendered by the  arbitrators may be entered in any
court  having  jurisdiction.  Any  such  arbitration  shall  be held in  Ottawa,
Ontario, Canada under the commercial rules then in effect of the Arbitration Act
of  Ontario.  For  purposes of this  Section  10.2(h)(iii),  in any  arbitration
hereunder  in which  any claim or the  amount  thereof  stated in the  Officer's
Certificate  is at  issue,  the  fees of  each  arbitrator,  and  the  expenses,
including without limitation,  attorneys' fees and costs, reasonably incurred by
any party to the arbitration shall be allocated by the arbitrator(s) and be part
of the decision of the arbitrator(s).

(i) Representatives of the Shareholders.

(i) Thomas  Blain and  Reginald  Cable shall be  constituted  and  appointed  as
representatives  and agents  ("Representatives  of the Shareholders") for and on
behalf  of  the  MicroLegend  shareholders  to  give  and  receive  notices  and
communications,  to  authorize  delivery  to PTI of the  Escrow  Shares or other
property  from the Escrow  Fund in  satisfaction  of claims by PTI, to object to
such deliveries, to agree to, negotiate,  enter into settlements and compromises
of,  and  demand  arbitration  and  comply  with  orders of courts and awards of
arbitrators  with respect to such claims,  and to take all actions  necessary or
appropriate in the judgment of the  Representatives  of the Shareholders for the
accomplishment of the foregoing.  Such agency may be changed by the holders of a
majority in interest of the Escrow Fund from time to time upon not less than ten
days'  prior  written   notice  to  PTI.  No  bond  shall  be  required  of  the
Representatives of the Shareholders, and the Representatives of the Shareholders
shall  receive no  compensation  for their  services.  PTI and/or Sub,  whenever
required by the  provisions of this  Agreement,  shall provide notice to both of
the  Representatives of the Shareholders.  Notices or communications from either
of the  Representatives of the Shareholders shall constitute notice from each of
the  Record  Holders,  and PTI and Sub shall be  entitled  to rely upon any such
notice or communication from either of the Representatives of the Shareholders.

(ii) The  Representatives  of the  Shareholders  shall not be liable for any act
done or omitted hereunder as the Representative of the Shareholders while acting
in good faith and in the exercise of  reasonable  judgment,  and any act done or
omitted  pursuant to the advice of counsel shall be conclusive  evidence of such
good faith. The Record Holders shall severally  indemnify the Representatives of
the Shareholders  and hold them harmless against any loss,  liability or expense
incurred   without   gross   negligence   or  bad  faith  on  the  part  of  the
Representatives of the Shareholders and arising out of or in connection with the
acceptance or administration of their duties hereunder.

(iii) The  Representatives  of the Shareholders  shall have reasonable access to
information  about  MicroLegend and the reasonable  assistance of  MicroLegend's
officers and employees for purposes of  performing  their duties and  exercising
their rights hereunder,  provided that the  Representatives  of the Shareholders
shall treat  confidentially  and not disclose any nonpublic  information from or
about  MicroLegend to anyone (except on a need to know basis to individuals  who
agree to treat such information confidentially).

(iv) A decision,  act,  consent or  instruction  of the  Representatives  of the
Shareholders  shall  constitute a decision of all Record Holders for whom Escrow
Shares otherwise  issuable to them are deposited in the Escrow Fund and shall be
final,  binding an conclusive upon each such  MicroLegend  shareholder,  and the
Escrow Agent and PTI may rely upon any decision,  act, consent or instruction of
either one of the  Representatives  of the  Shareholders  as being the decision,
act,  consent or instruction of each and every such Record  Holders.  The Escrow
Agent and PTI are hereby  relieved from any liability to any person for any acts
done by them in accordance  with such decision,  act,  consent or instruction of
the Agent.

(j) Third-Party  Claims.  In the event PTI becomes aware of a third-party  claim
which PTI  believes may result in a demand  against the Escrow  Fund,  PTI shall
notify  the   Representatives  of  the  Shareholders  of  such  claim,  and  the
Representatives  of the Shareholders  and the MicroLegend  shareholders for whom
Escrow Shares otherwise  issuable to them are deposited in the Escrow Fund shall
be entitled,  at their expense, to participate in any defense of such claim. PTI
shall have the right in its sole discretion to settle any such claim;  provided,
however,  that PTI not  effect the  settlement  of any such  claim  without  the
consent of the  Representatives of the Shareholders,  which consent shall not be
unreasonably withheld. In the event that the Representatives of the Shareholders
has consented to any such settlement,  the  Representatives  of the Shareholders
shall have no power or authority to object  under  Section  10.2(f) or any other
provision  of this  Section  10.2 to the amount of any claim by PTI  against the
Escrow Fund for indemnity with respect to such settlement.

(k) Indemnification by PTI. Subject to the same limitations set forth in Section
10.2(d),  PTI and Sub will jointly and severally indemnify and hold harmless the
Principal  Shareholders of MicroLegend,  their respective successors and assigns
and each Person,  if any, who controls or may control any Principal  Shareholder
within the  meaning of the  Securities  Act from and against any and all Damages
arising out of any  misrepresentation or breach of or default in connection with
any of the representations,  warranties,  covenants and agreements given or made
by PTI or Sub in this  Agreement  or any exhibit or schedule to this  Agreement.
The Principal Shareholders and their Affiliates shall act in good faith and in a
commercially  reasonable  manner to mitigate  any Damages  they may suffer.  The
Principal  Shareholders  shall not make a claim for  indemnification  under this
Section 10.2(k) until the aggregate  amount of Damages exceeds  $150,000.00,  in
which case PTI and Sub shall indemnify the Principal  Shareholders  for the full
amount of any such Damages. The Principal  Shareholders shall give notice to PTI
and Sub of any demand for indemnification under this Section 10.2(k), stating in
reasonable  detail the nature thereof.  If any such demand arises out of a claim
made  against  the  Principal  Shareholders  by any  Person  not a party to this
Agreement or an Affiliate of any party to this Agreement, such notice shall also
state whether the Principal  Shareholders dispute the claim and intend to defend
against it. If the Principal  Shareholders  shall defend against the claim,  PTI
and Sub shall cooperate with them in such defense,  shall make available to them
all records and other materials reasonably required by them in such defense, and
shall  have  the  right  to  participate  in such  defense,  but  the  Principal
Shareholders  shall  at  all  times  control  such  defense.  If  the  Principal
Shareholders do not intend to defend against the claim, then within fifteen (15)
days after their  notice is given,  PTI and Sub shall either (i) make payment in
full of the claim (ii) compromise and make payment of the compromised  claim, or
(iii) notify the Principal  Shareholders  that they dispute the claim and intend
to defend  against  it. If PTI and Sub  shall  defend  against  the  claim,  the
Principal  Shareholders shall cooperate with PTI and Sub in such defense,  shall
make  available  to PTI and Sub  all  records  and  other  materials  reasonably
required by PTI and Sub in such defense, and shall have the right to participate
in such defense, but PTI and Sub shall at all times control such defense. In the
event there is a dispute over the extent to which  indemnification  is available
hereunder, the Representatives of the Shareholders and PTI shall attempt in good
faith for sixty  (60) days to agree upon the  rights of the  respective  parties
with respect to each of such claims.  If no such  agreement can be reached after
good  faith  negotiation,  either  PTI or either of the  Representatives  of the
Shareholders  may, by written  notice to the other,  demand  arbitration  in the
manner set forth in Section 10.2(h).

Article 11.       TERMINATION

11.1  Termination.  This  Agreement  may be  terminated at any time prior to the
Closing Date.

(a) by PTI,  upon  notice to  MicroLegend  and the  Principal  Shareholders,  if
(without any breach by PTI of any of its  obligations  hereunder) if MicroLegend
fails to comply with any  condition  set forth in Sections  9.1 or 9.3, and such
failure of compliance is not waived by PTI; or

(b) by MicroLegend, upon notice to PTI, if (without any breach by MicroLegend of
any of its  obligations  hereunder)  compliance  with any condition set forth in
Sections 9.1 or 9.3 becomes  impossible,  and such failure of  compliance is not
waived by MicroLegend; or

(c) by PTI,  upon  notice to  MicroLegend,  if between  the date  hereof and the
Closing  Date there has occurred (or been  discovered)  any event,  condition or
change in the operations,  financial condition,  assets, liabilities (contingent
or otherwise),  income or business of MicroLegend  and its  Subsidiaries  (other
than events,  conditions  and changes  affecting  the  technology  industry as a
whole, or changes in income  resulting from business  operations in the ordinary
course),  or  any  damage,  destruction  or  loss,  whether  or not  covered  by
insurance,  that  adversely  impairs  the  value  of  MicroLegend,  any  of  its
Subsidiaries,  any of the  facilities  occupied by  MicroLegend  or any of their
respective  assets; and the reasonably  anticipated  aggregate ongoing effect of
such events,  conditions  and changes on the  operations,  financial  condition,
assets, liabilities (contingent or otherwise), income or business of MicroLegend
subsequent to Closing exceeds $150,000;

(d) by PTI or Sub  immediately  upon  notice to  MicroLegend  and the  Principal
Shareholders in the event MicroLegend breaches the provisions of Section 6.7;

(e) by PTI or Sub  immediately  upon  notice to  MicroLegend  and the  Principal
Shareholders  in the  event  the  amount  of  Tangible  Net  Worth is less  than
$1,700,000; and

(f) by PTI or by  MicroLegend,  upon  notice  to the  other,  at any time  after
December 31, 1999.

11.2 Effect of Termination. In the event of termination of this Agreement by any
Party in the manner  provided by Section 11.1,  this Agreement will  immediately
become void and of no effect,  and  subject to the  provisions  of Section  6.7,
there will be no liability or obligation on the part of PTI, Sub, MicroLegend or
any of their respective officers or directors to any other party hereto.

Article 12.       IN GENERAL

12.1 Survival of  Representations,  Warranties and Agreements.  Unless otherwise
specifically  provided herein,  the  representations,  warranties and agreements
contained in this  Agreement  or in any  instrument  delivered  pursuant to this
Agreement will survive the Closing.

12.2  Amendment;  Waiver.  This  Agreement  may be amended by the parties at any
time.  This  Agreement  may not be amended  except by an  instrument  in writing
signed by each of the parties.  No waiver of  compliance  with any  provision or
condition hereof,  and no consent provided for herein,  will be effective unless
evidenced by an  instrument  in writing duly  executed by the party sought to be
charged therewith. No failure on the part of any party to exercise, and no delay
in exercising, any of its rights hereunder will operate as a waiver thereof, nor
will any single or partial  exercise by either  party of any right  preclude any
other or future exercise thereof or the exercise of any other right.

12.3 Notices.  Each notice and other  communication  given  hereunder will be in
writing and will be deemed given when delivered  personally,  sent by telecopier
(receipt of which is  confirmed),  mailed by  commercial  express  courier (with
receipt  confirmed) or mailed by registered  or certified  mail (return  receipt
requested) to the party for which it is intended at the following address (or at
such other address for a party as is specified by like notice):

(a)      if to MicroLegend prior to the Closing Date, to:

                                    MicroLegend Telecom Systems, Inc.
                  .........         150 Metcalfe Street, Suite 2201
                  .........         Ottawa, Ontario, Canada K2P 1P1
                  .........         Attention:  Thomas Blain,
                            Chief Technology Officer
                            ..... tel.:(613) 237-4344
                          ......... fax: (613) 237-4456

                  .........with a copy to:

                  .........         LaBarge Weinstein
                  .........         Xerox Tower
                  .........         333 Preston Street, 11th Floor
                  .........         Ottawa, Ontario, Canada K1S 5N4
                  .........         Attention:  Deborah L. Weinstein, Esq.
                  .........         Tel.: (613) 231-3000
                  .........         fax:  (613) 231-3900

(b) if to PTI or Sub, or to MicroLegend after the Closing Date, to:


                  .........         PERFORMANCE TECHNOLOGIES, INCORPORATED
                  .........         315 Science Parkway
                  .........         Rochester, New York  14620
                  .........         Attention: Donald L. Turrell
                  .........         President and Chief Executive Officer
                  .........         Tel.: (716) 256-0200
                  .........         fax:  (716) 256-3520

                  .........with a copy to:

                  .........         HARTER, SECREST & EMERY LLP
                  .........         700 Midtown Tower
                  .........         Rochester, New York  14604
                  .........         Attention: Jeffrey H. Bowen, Esq.
                  .........         Tel.: (716) 231-1149
                  .........         fax:  (716) 232-2152

                  .........         NELLIGAN POWER, LLP
                  .........         66 Slater, Suite 1900
                  .........         Ottawa, Ontario, Canada  K1P 5H1
                  .........         Attention: David Stout, Esq.
                  .........         Tel.: (613) 231-8344
                  .........         fax: (613) 788-3678

(c) if to the Principal Shareholders or the Representatives of the Shareholders

                                  Thomas Blain
                                    Reginald T. Cable
                                    c/o MicroLegend Telecom Systems, Inc.
                         150 Metcalfe Street, Suite 2201
                         Ottawa, Ontario, Canada K2P 1P1
                              tel.: (613) 237-4284
                               fax: (613) 237-4456

                           with a copy to:

                                    LaBarge Weinstein
                                    Xerox Tower
                                    333 Preston Street, 11th Floor
                                    Ottawa, Ontario, Canada  K1S 5N4
                                    Attention:  Deborah L. Weinstein, Esq.
                                    tel.: (613) 231-3000
                                    fax: (613) 231-3900

12.4 Schedules and Other Instruments.  Each Schedule,  each certificate provided
hereunder  and each  written  disclosure  required  hereby  is  incorporated  by
reference  into this  Agreement  and will be  considered a part hereof as if set
forth  herein in full;  provided,  however,  that  information  set forth on any
Schedule,  certification or written disclosure  constitutes a representation and
warranty of the party  providing the same,  and not the mutual  agreement of the
parties as to the facts  therein  stated.  No Schedule may be amended  after the
date of its delivery, except by mutual written agreement of PTI and MicroLegend.
In the event that (a) MicroLegend  presents to PTI a written proposed  amendment
to any Schedule,  and (b) PTI fails to agree to such  amendment in writing,  and
(c) PTI  nevertheless  proceeds  to close the  Acquisition,  then PTI waives any
claim  which it may have  against  MicroLegend,  or its  directors,  officers or
agents, based on an alleged breach of representation or warranty which would not
have  been a breach  had PTI  agreed to the  amendment  as  proposed;  provided,
however,  that the  foregoing  does not affect  PTI's  right to  terminate  this
Agreement as provided by Article 11.

12.5  Inferences.  Inasmuch  as this  Agreement  is the  result of  negotiations
between  sophisticated parties of equal bargaining power represented by counsel,
no  inference  in favor of or against any party will be drawn from the fact that
any portion of this Agreement has been drafted by or on behalf of such party.

12.6  Governing  Law.  This  Agreement  will be  governed  by and  construed  in
accordance  with the laws of the  Province of Ontario and the Dominion of Canada
without regard to its principles of conflicts of laws.

12.7  Assignment.  Neither this  Agreement  nor any of the rights,  interests or
obligations  hereunder  may  be  assigned  by any of  the  parties  (whether  by
operation of law or otherwise)  without the prior  written  consent of the other
parties,  except that Sub may assign, in its sole discretion,  any or all of its
rights,   interests  and  obligations   hereunder  to  any  direct  or  indirect
wholly-owned Subsidiary of PTI.

12.8  Benefit.  Subject  to  express  provisions  herein to the  contrary,  this
Agreement  will inure to the benefit of and be binding  upon the parties  hereto
and their respective legal  representatives,  successors and permitted  assigns.
This  Agreement is not intended to confer upon any person other than the parties
hereto any rights or remedies hereunder.

12.9 Entire  Agreement;  Rights of Ownership.  This  Agreement  constitutes  the
entire agreement,  and supersedes all prior agreements and understandings,  both
written  and oral,  including  the MOU among the  parties  with  respect  to the
subject matter hereof. The parties acknowledge that no party will have the right
to acquire or will be deemed to have acquired shares of the capital stock of any
other party pursuant to the Acquisition until the Closing Date.

12.10 Counterparts.  This Agreement,  and any document or instrument required or
permitted  hereunder,  may be  executed in  counterparts,  each of which will be
deemed an original and all of which  together  will  constitute  but one and the
same instrument.




<PAGE>




         In Witness  Whereof,  PTI, Sub and  MicroLegend,  each  pursuant to the
approval  and  authority  duly  given by  resolutions  adopted  by its  Board of
Directors,  and the Principal  Shareholders  have caused this Share  Acquisition
Agreement to be executed as of the date first above written.


                                    PERFORMANCE TECHNOLOGIES, INCORPORATED


                                    By:___________________________________
                                           Its:


                                    3688283 CANADA INC.


                                    By:___________________________________
                                          Its:


                                    MICROLEGEND TELECOM SYSTEMS, INC.


                                    By:___________________________________
                                           Its:


                                      Thomas Blain


                                     Reginald T. Cable



<PAGE>




                         TABLE OF EXHIBITS AND SCHEDULES

Exhibit A                  Description of Exchangeable Shares
Exhibit B                  Form of Voting Agreement
Exhibit C                  Form of Affiliates' Agreement
Exhibit D                  Form of Shareholder's Representation Agreement
Exhibit E-1                Form of Employment Agreement
Exhibit E-2                Form of Remaining Employee Employment Agreement
Exhibit F                  Form of Principal Shareholder Employment Agreements
Exhibit G                  Form of Voting and Exchange Trust Agreement
Exhibit H                  Form of Support Agreement
Exhibit I                  Form of Escrow Agreement


Schedule 2.1               Allocation of Exchangeable Shares
Schedule 4.1               Subsidiaries, Etc.
Schedule 4.2               Stock Rights
Schedule 4.4               Conflicts; Consents
Schedule 4.6               Additional Material Liabilities
Schedule 4.8               MicroLegend Permits
Schedule 4.9               Real Property
Schedule 4.10(a)           Permitted Encumbrances
Schedule 4.10(b)           Leases
Schedule 4.10(c)           Wetlands
Schedule 4.12              Condition of Real Property
Schedule 4.13              Equipment; Personal Property
Schedule 4.14              Environmental Matters
Schedule 4.15              Employee Plans
Schedule 4.16              Employment Matters
Schedule 4.17              Material Agreements
Schedule 4.18              Litigation
Schedule 4.24              Intellectual Property
Schedule 4.25              Accounts Receivable and Accounts Payable
Schedule 4.26              Inventory and Backlog
Schedule 4.27              Customers and Suppliers
Schedule 4.28              Product Warranties
Schedule 4.29              Year 2000
Schedule 4.30              Banking Relations
Schedule 6.1               Material Changes
Schedule 7.3               Employees




                                    AMENDMENT
              TO SHARE ACQUISITION AGREEMENT made December 2, 1999

         THIS  AMENDMENT  dated  December  10,  1999,  to  a  Share  Acquisition
agreement between Performance Technologies,  Incorporated,  3688283 Canada Inc.,
MicroLegend  Telecom  Systems  Inc.,  Thomas  Blain and  Reginald T. Cable dated
December 2, 1999 (the "Acquisition Agreement").

1. The parties hereto agree to amend the Acquisition Agreement as follows:

         (a)      Delete from Section 4.5 the following  from the  definition of
                  "Financial  Statements":   "and  for  the  nine  months  ended
                  September 30, 1999".

         (b)      Delete Section 6.14 in its entirety.

2. The parties  expressly  agree that the  delivery of the  Pre-Closing  Balance
Sheet shall not be a condition of Closing.

3.       The parties  expressly  agree that no party may rely on any Pre-Closing
         Balance Sheet that may have been delivered or reviewed by any party.

4.       The  parties  agree that  Section  10.2(e)  and (f) shall be amended as
         follows:  any  reference  to a claim of  indemnity  for  damages of "an
         aggregate  amount of which exceeds  $150,000 plus the amount if any, by
         which the Tangible Net Worth exceeds  $1,700,000"  shall be replaced by
         "$327,000".

5. All dollar amounts referred herein are in "U.S. Dollars".

6.       All initially  capitalized  terms which are not identified herein shall
         have the meanings attached to them in the Acquisition Agreement.

7.       Article  12 of the  Acquisition  Agreement  is  incorporated  herein by
         reference.

8.       Except to the extent modified hereby, the Acquisition Agreement remains
         in full force and effect.

                     PERFORMANCE TECHNOLOGIES, INCORPORATED

                            By: /s/ DONALD L. TURRELL
                            --------------------------
                               Donald L. Turrell,
                           President, Chief Executive
                              Officer and Director





                                     3688283 Canada Inc.

                                 Name:   Dorrance W. Lamb
                                    Title:  Vice-President


                        MicroLegend Telecom Systems Inc.

                            By: /s/ REGINALD T. CABLE
                              -------------------------
                                    Reginald T. Cable
                                        President


                        MicroLegend Telecom Systems Inc.

                              By: /s/ THOMAS BLAIN
                              -------------------------
                                      Thomas Blain


                                  EXHIBIT 23.1


                       CONSENT OF INDEPENDENT ACCOUNTANTS


     We hereby consent to the use in this Amended Registration Statement on Form
S-3/A of our  report  dated  February  12,  1999  relating  to the  consolidated
financial  statements of Performance  Technologies,  Inc., which appears in such
Amended Registration Statement. We also consent to the reference to us under the
heading "Experts" in such Amended Registration Statement.





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

Rochester, NY
January 28, 2000








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