PHYSICIAN COMPUTER NETWORK INC /NJ
8-K, 1999-12-10
COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
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                SECURITIES AND EXCHANGE COMMISSION

                    Washington, D.C. 20549

                           FORM 8-K

                        CURRENT REPORT

           Filed pursuant to Section 13 or 15(d) of

              THE SECURITIES EXCHANGE ACT OF 1934


                December 10, 1999 (December 7, 1999)
- --------------------------------------------------------------
        Date of Report (Date of earliest event reported)


                PHYSICIAN COMPUTER NETWORK, INC.
- --------------------------------------------------------------
      (Exact name of registrant as specified in charter)


                           New Jersey
- --------------------------------------------------------------
        (State or other jurisdiction of incorporation)


                            0-19666
- --------------------------------------------------------------
                   (Commission File Number)


                           22-2485688
- --------------------------------------------------------------
               (IRS Employer Identification No.)


                     1200 The American Road
                 Morris Plains, New Jersey 07950
- --------------------------------------------------------------
           (Address of principal executive offices)



                        (973) 490-3100
- --------------------------------------------------------------
     (Registrant's telephone number, including area code)











<PAGE>

ITEM 5.           Other Events.
- -------           -------------------------------------------------------

                  On  December 7, 1999,  the  Registrant  and its  subsidiaries,
VERSYSS Incorporated,  Wismer*Martin,  Inc., Integrated Health Systems, Inc. and
PCN HP  Venture  Corp.  (collectively,  the  "Sellers")  entered  into an  asset
purchase  agreement  (the  "Asset  Purchase  Agreement")  with  Medical  Manager
Corporation  ("Medical  Manager") and its  subsidiary,  Medical  Manager  Health
Systems, Inc. (the "Purchaser").  Pursuant to the Asset Purchase Agreement,  the
Sellers agreed to sell  substantially all of their assets to the Purchaser for a
purchase  price  consisting of $15.5 million in cash and $37.5 million in shares
of the  common  stock  of  Medical  Manager,  subject  to  certain  post-closing
adjustments,   plus  the  assumption  of  substantially  all  of  the  operating
liabilities of the Sellers. The closing of the transaction is anticipated in the
Spring of 2000. The Asset  Purchase  Agreement and the text of the press
announcing  this  transaction  are  attached  hereto as exhibits to this Current
Report and are incorporated herein in their entirety by reference.

                  In  connection  with  the  above   transaction,   the  Sellers
voluntarily  filed in the United States Bankruptcy Court for the District of New
Jersey (i) on December 7, 1999,  their  respective  petitions (the  "Petitions")
under Chapter 11 of the U.S.  Bankruptcy  Code,  and (ii) on December 8, 1999, a
Plan of  Reorganization  (the  "Plan").  The Plan  embodies  the Asset  Purchase
Agreement  and provides,  among other things,  for the payment in full of all of
the Sellers'  creditors and for the sale of the Sellers' assets to the Purchaser
upon  confirmation  of the Plan.  The Plan also provides for any proceeds of the
transaction  remaining  after the payment of creditors and other  expenses to be
available for distribution to the Registrant's  equity class. Such excess amount
will not be  finalized  until  confirmation  of the  Plan.  The  closing  of the
transaction  contemplated  by the Asset  Purchase  Agreement  is subject to such
confirmation of the Plan and to certain other  customary  conditions to closing.
The  Purchaser  provided $1.5 million in financing to the Sellers prior to their
filing of the  Petitions  and has also  agreed to  provide  debtor-in-possession
financing  to the  Sellers of up to $3.5  million to  finance  their  operations
during the bankruptcy proceeding.


ITEM 7.           Financial Statements, Pro Forma Financial Information and
                  Exhibits.
- -------           -------------------------------------------------------

                           (a)      Financial Statements.

                           Not applicable.

                           (b)      Pro Forma Financial Information.

                           Not applicable







<PAGE>


         (c)      Exhibits.
                  ---------

         Exhibit 1  --             Copy of Press Release dated December 7, 1999.

         Exhibit 2  --             Copy of Asset Purchase Agreement dated as of
                                   December 7, 1999, by and among Physician
                                   Computer Network, Inc., VERSYSS Incorporated,
                                   Wismer*Martin, Inc., Integrated Health
                                   Systems, Inc., PCN HP Venture Corp., Medical
                                   Manager Corporation, and Medical Manager
                                   Health Systems, Inc.








<PAGE>
                                    SIGNATURE

                  Pursuant to the requirements of the Securities Exchange Act of
1934,  the  Registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized.


                                                PHYSICIAN COMPUTER NETWORK, INC.
                                                      (REGISTRANT)


Date: December 10, 1999                         By: /s/ Paul M. Antinori
                                                ---------------------
                                                    Paul M. Antinori
                                                    Vice President







<PAGE>

EXHIBIT INDEX


Exhibit 1  --                Copy of Press Release dated December 7, 1999.

Exhibit 2  --                Copy of Asset Purchase Agreement dated as of
                             December 7, 1999, by and among Physician Computer
                             Network, Inc., VERSYSS Incorporated, Wismer*Martin,
                             Inc., Integrated Health Systems, Inc., PCN HP
                             Venture Corp., Medical Manager Corporation, and
                             Medical Manager Health Systems, Inc.



<PAGE>







Company Press Release

Medical Manager to Acquire Physician Computer Network

ELMWOOD PARK, NJ/MORRIS PLAINS,  NJ--(BUSINESS WIRE)--Dec. 7, 1999--Medical
Manager Corporation  (NASDAQ:  MMGR) and Physician Computer Network,  Inc. (OTC:
PCNI) announced today that the two companies have signed a definitive  agreement
which provides for Medical Manager to acquire substantially all of the operating
assets of Physician  Computer Network,  one of the nation's largest providers of
physician practice management systems, for a purchase price of $53 million, plus
the assumption of certain liabilities.

Medical Manager Corporation is the nation's leading provider of physician office
practice  management   systems.   Medical  Manager   Corporation,   through  its
subsidiaries,  Medical Manager Health Systems and Careinsite (NASDAQ:  CARI), is
transforming the information  infrastructure of America's practicing  physicians
and with the  acquisition  of Physician  Computer  Network (PCN) will no provide
practice  management systems to over 185,000 physicians  throughout the U.S. The
acquisition  of PCN  represents  another  stepping  stone  toward  its  goal  of
revolutionizing the way in which physicians can communicate  electronically with
the nation's health plans,  pharmacies,  labs,  other providers and suppliers of
healthcare, and their patients.

PCN also announced today that it has voluntarily  filed a petition under Chapter
11 of the U.S.  Bankruptcy Code and a Plan of  Reorganization  that provides for
the sale of the assets to Medical Manager upon confirmation of the Plan. Medical
Manager will  exchange  $15.5 million in cash and $37.5 million in shares of its
common stock and assume certain liabilities in exchange for substantially all of
the operating assets of PCN and its subsidiaries. Completion of the acquisition,
which is expected in the Spring of 2000 is subject to  confirmation  of the Plan
of  Reorganization  and certain other customary  conditions to closing.  Medical
Manager  has also  agreed  to  provide  debtor-in-possession  financing  to PCN,
subject to court approval.

The integration of PCN into the Medical Manager  franchise  creates  significant
opportunities for the combined  organization.  Medical Manager's  penetration in
key geographic markets provides  opportunities for more comprehensive as well as
more  efficient  customer  support.  It also creates  significant  cross-selling
opportunities between the two organizations. Commenting on the acquisition, John
Kang,  Co-CEO of Medical  Manager,  said,  "With more than 55,000  providers  in
approximately  8,000  sites,  PCN's  installed  base and  national  distribution
network increases Medical Manager Health System's strong presence on physicians'
desktops and creates an unparalleled  sales,  service and support  organization.
Increasing the size of Medical Manager's  franchise  enhances the value to other
potential  business  partners  interested in gaining a more efficient channel of
physician distribution."

In conjunction  with the signing of the acquisition  agreement,  Medical Manager
and PCN have extended their previously announced exclusive  arrangement to offer
Careinsite's   web-based  physician  portal  services  and  clinical  e-commerce
transactions to PCN's entire client base. Careinsite, through its agreement with
Medical Manager,  will be the exclusive  provider of a fully integrated suite of
transaction services to approximately forty percent of all ambulatory care

                                        1

<PAGE>


physicians across the U.S.

Martin J. Wygod,  Chairman of Medical Manager,  said, "The acquisition of PCN by
Medical  Manager  creates   significant   opportunities  for  Careinsite.   This
acquisition  strengthens  Careinsite's appeal to large health plans,  pharmacies
and  clinical  labs  given  the  combined   physician   base  and   distribution
organizations located in virtually every local geographic market in the country.
It also  accelerates  Careinsite's  ability to offer secure  web-based  services
which are fully  integrated  into the workflow and data of PCN's installed base.
In addition to aggregating large numbers of physicians,  Careinsite continues to
focus on  strategic  partnerships  which will  enhance  its goal of  creating an
all-payer, all-patient network."

Carter Evans,  President of PCN,  said,  "Medical  Manager has been an excellent
competitor  of ours for over fifteen years and I am pleased to announce that PCN
will join such a strong and reputable  organization.  Leveraging PCN's installed
base over Medical Manager's  infrastructure  will enable PCN to regain financial
health.  Joining the Medical  Manager  team and fully  integrating  Careinsite's
services  into  PCN's   products  will  ensure  that  PCN's   customers  have  a
market-leading product and superior customer service and support."

Medical Manager Corporation  (NASDAQ:  MMGR) operates three principal lines of
business:  physician  practice  management  systems  through  Medical Manager
Health Systems,  Inc., healthcare  e-commerce through Careinsite,  Inc. (NASDAQ:
CARI), and plastics and filtration technologies through Porex Corporation.

The  statements  contained  in  this  release,  other  than  the  terms  of  the
acquisition, are forward looking statements that involve risks and uncertainties
including, but not limited to, the successful closure of the acquisition and the
integration of the Medical Manager and Physician  Computer  Network  businesses,
the  feasibility of developing  commercially  profitable  healthcare  e-commerce
services,   the  effect  of  economic  conditions,   physician  and  other  user
acceptance,  the impact of competitive products,  services and pricing,  product
development,  commercialization and technological difficulties,  and other risks
detailed in Medical Manager's and Physician  Computer  Network's  Securities and
Exchange Commission filings.


Contact:

         Medical Manager Corporation
         James R. Love
         Executive Vice President and
         Chief Financial Officer
         201/703-3400
                  or
         Physician Computer Network
         Carter Evans
         President
         973/490-3100

                                        2




                            ASSET PURCHASE AGREEMENT

                                  by and among

                        PHYSICIAN COMPUTER NETWORK, INC.,

                              VERSYSS INCORPORATED

                              PCN HP VENTURE CORP.

                         INTEGRATED HEALTH SYSTEMS, INC.

                              WISMER*MARTIN, INC.,

                      MEDICAL MANAGER HEALTH SYSTEMS, INC.

                                       and

                           MEDICAL MANAGER CORPORATION

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

                          Dated as of December 7, 1999
                           ----------------------------



<PAGE>



                            ASSET PURCHASE AGREEMENT

         AGREEMENT,  dated  as of  December  7,  1999,  by and  among  Physician
Computer Network, Inc., a New Jersey corporation ("PCN"),  VERSYSS Incorporated,
a  Delaware   corporation   ("Versyss"),   Wismer*Martin,   Inc.,  a  Washington
corporation ("WM"),  Integrated Health Systems,  Inc., a California  corporation
("IHS"),  PCN HP Venture Corp. , a Delaware  corporation ("HP" and together with
PCN  ,Versyss,  WM and IHS,  the  "Sellers"),  Medical  Manager  Corporation,  a
Delaware corporation  ("Medical  Manager"),  and Medical Manager Health Systems,
Inc., a Delaware corporation (the "Purchaser").


                                   BACKGROUND

         The Sellers are engaged in the  business of,  among other  things:  (i)
publishing medical practice  management  software products (the "PMS Software");
(ii)  providing  physicians,  hospitals,  medical  clinics and other  facilities
providing medical services with practice  management  software systems using the
PMS Software; (iii) providing maintenance and support for such systems; and (iv)
providing  related  products  and  services,   including,   without  limitation,
electronic data interchange services,  billing services and printed products, to
the users of such systems (whether conducted by PCN, Versyss, HP, WM, IHS or any
of  their  respective  Affiliates,  all  of  the  foregoing  being  referred  to
hereinafter  as the  "Business").  The Sellers  desire to sell and the Purchaser
desires to purchase substantially all of the Sellers' assets, including, without
limitation,  the  Business as a going  concern,  on the terms and subject to the
conditions set forth herein.

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
agreements hereinafter set forth, the parties hereto hereby agree as follows:

1.    PURCHASE AND SALE OF ASSETS

      1.1. Sale of Assets.  On the terms and subject to the conditions set forth
in this  Agreement,  the Sellers agree to sell,  convey,  transfer,  deliver and
assign to the Purchaser,  and the Purchaser  agrees to purchase,  on the Closing
Date (as  hereinafter  defined),  all of the Sellers'  tangible  and  intangible
assets, rights,  interests and properties of every kind, wherever located and by
whomever  possessed  as the same may exist on the  Closing  Date (other than the
Retained Assets (as defined in Section 1.2 hereof)) (the  "Assets"),  including,
without limitation, all of the following:

  (a)      the Business as a going concern and the goodwill pertaining thereto;

  (b)      all customer lists utilized in the Business;

  (c)  all  rights  of  the  Sellers  (or  any of  them),  their
successors  and assigns  under all license,  sublicense,  service,  development,
maintenance  and  support  agreements  (whether  related to  computer  software,
hardware or both),  between  any one or more of the  Sellers  and any  licensee,
sublicensee or other permitted user ("End-Users") of the products or services of
the Business (collectively, the "End-User Agreements");

                                        1

<PAGE>



                  (d) all rights of the  Sellers  (or any of them) in and to any
source-codes,  object-  codes,  manuals and other  documentation  and  materials
(whether or not in written  form) and all versions  thereof,  together  with all
other  patents,  licenses,   trademarks,   service  marks,  tradenames  (whether
registered or  unregistered),  domain names,  copyrights,  proprietary  computer
software, proprietary inventions, proprietary technology, technical information,
discoveries,  designs, proprietary rights and non-public information, whether or
not  patentable,  in each case used or usable  in the  conduct  of the  Business
(collectively, the "Intellectual Property");

                  (e) all accounts and other  receivables  of any one or more of
the Sellers (the "Accounts Receivable");

                  (f) all items of inventory of the Sellers, including,  without
limitation,  all computer hardware products,  peripherals,  supplies (including,
without  limitation,  packaging and shipping  materials) used in connection with
the  Business,   work-in-progress   and  finished   goods   (collectively,   the
"Inventory");

                  (g)  all  rights  of  the  Sellers  (or  any of  them),  their
successors  and assigns under any agreement  with any third party (insofar as it
related to the  Business)  (collectively,  but  without  including  the End User
Agreements,  the "Third Party  Agreements")  (other than those which  constitute
Retained Assets),  including,  without limitation:  (i) all of the rights of any
one  or  more  of  the  Sellers  under   agreements   (collectively,   "Reseller
Agreements")  with resellers or distributors of or persons  otherwise  providing
support  for  any  of  the  Sellers'   products   and  services   (collectively,
"Resellers"); (ii) all of the rights of any one or more of the Sellers as tenant
under any real property lease (the "Real Property Leases"),  including,  but not
limited to, any rights with  respect to security  deposits of any of the Sellers
held by the  landlord  under any such Real  Property  Leases and by any  utility
company  with  respect to  utilities  used by any of the Sellers at the premises
demised  under any of the Real Property  Leases;  (iii) all of the rights of any
one or more of the Sellers under any agreement with Holbrook Systems,  Inc. (the
"Commercial  Agreements");  (iv) all of the  rights of PCN  under the  Exclusive
Electronic  Gateway and Network  Services  Agreement,  dated July 2, 1999,  with
Medical  Manager,  as  amended  by  agreement  of even date  herewith  (the "Web
Agreement");  and (v) any and all rights of any one or more of the Sellers under
or with respect to any original  equipment  manufacturing  or similar  agreement
(each an "OEM Agreement");

                  (h) all items of equipment,  machinery,  furniture or fixtures
used by any one or more of the Sellers (the "Equipment");

                  (i) the  rights  of any one or more of the  Sellers  under any
equipment  leases  to  which  any one or more of the  Sellers  are a party  (the
"Equipment Leases"),  including,  but not limited to, any rights with respect to
security  deposits  of any of the  Sellers  held by the  lessors  under any such
Equipment Leases;

                  (j) copies of all books of account,  records, files, invoices,
customer lists, supplier lists, designs,  drawings,  business records and plans,
computer print-outs and software, plans and

                                        2

<PAGE>



specifications,   warranties,   trade   correspondence,   sales  or  promotional
literature,  operating data and other books and records  related to the Business
as it is conducted on the Closing Date,  including,  without  limitation,  those
required  to be kept  under  applicable  law,  and  other  data  or  information
associated  with, used or employed in connection with the Business (all of which
are collectively referred to hereinafter as the "Books and Records");

                  (k)  the  right  to  receive  mail  and  other  communications
regarding  the  Business  addressed  to any of the Sellers  (including,  without
limitation,  mail and  communications  from End-  Users,  customers,  suppliers,
resellers, distributors and others);

                  (l) all creative  materials  (including,  without  limitation,
films,  art work, color  separations and the like),  advertising and promotional
materials  and all other printed or written  materials  related to the Business,
its products or services;

                  (m) all claims,  refunds,  causes of action, choses in action,
rights of recovery and rights of set-off of every kind and nature related to the
Business, except to the extent included in the Retained Liabilities;

                  (n)  subject  to  Section  1.7  hereto,  the names  "Physician
Computer Network", "PCN" and "Versyss" and all permutations thereof;

                  (o) all  other  tangible  or  intangible,  personal  or  mixed
property  of the  Sellers,  including,  without  limitation,  all  assets of the
Sellers  identified on the Audited Statements (as defined in Section 5.6 below),
in each case to the extent it is not included in the Retained Assets;

                  (p) all Excess Cash (as hereinafter defined), which amount the
Sellers  agree will remain in the  Transferred  Accounts  (as defined in Section
1.1(q) below).  As used herein,  "Excess Cash" shall mean the amount of all cash
and cash equivalents  (other than cash deposited as, or to secure,  bonds posted
by any one or more of the Sellers  with  respect to Retained  Litigation  or tax
liabilities of the Sellers) held by the Sellers on the Closing Date  (including,
without  limitation,  any part of the DIP Loan (as  defined in  Section  2.2(b))
advanced by the  Purchaser to the PCN  pursuant to the last  sentence of Section
2.2(b)  hereof) in excess of the amount  of: (i) income tax  obligations  of the
Sellers which were incurred  prior to the date on which the Petition (as defined
in Section 7.1 below) is filed with the Bankruptcy  Court (as defined in Section
7.1  below),  but which  remain  unpaid as of the Closing  Date;  and (ii) PCN's
reasonable,  good faith  estimate  (as  reflected  on a written  statement to be
delivered  by PCN to the  Purchaser  at the  Closing) of the amount of legal and
other  professional fees and disbursements and transaction  expenses incurred by
PCN through,  but unpaid on, the Closing  Date. In no event shall any portion of
the Cash Payment (as defined in Section 2.1(a)) or any Reimbursement  Amount (as
defined in Section 3.4 below) be deemed to be  included as part of Excess  Cash;
and


                                        3

<PAGE>



                  (q) all of the Sellers right, title and interest in and to the
all of its bank  accounts,  except  for the  Retained  Accounts  (as  defined in
Section 1.2(k) below) (all such bank accounts  other than the Retained  Accounts
being referred to herein as the "Transferred Accounts").

                  For purposes of this  Agreement,  the term  "Affiliate"  shall
mean any entity that directly or indirectly, through one or more intermediaries,
controls or is controlled  by or is under common  control with any other entity.
For purposes of this definition, "control" of a person means the power, directly
or  indirectly,  to direct or cause the direction of the management and policies
of such person, whether by contract or otherwise.

      1.2.  Retained  Assets.  The  following  properties,  assets,  rights  and
interests of the Sellers (the "Retained Assets") are expressly excluded from the
purchase  and sale  contemplated  hereby and, as such,  are not  included in the
Assets:

                  (a)      the Sellers' rights under this Agreement;

                  (b) all cash and cash equivalents  other than Excess Cash (and
not including Accounts Receivable) and marketable  securities of the Sellers and
their Affiliates,  including,  without limitation,  any cash deposited as, or to
secure,  bonds  posted by any one or more of the  Sellers  with  respect  to any
Retained  Litigation and tax liabilities of the Sellers,  which cash the Sellers
agree to deposit into the Closing  Account (as defined in Section  1.2(k) below)
immediately prior to the Closing;

                  (c) the  shares  of  capital  stock  of any of the  direct  or
indirect subsidiaries of any one or more of the Sellers;

                  (d)  any  and  all  tax  attributes  of any one or more of the
Sellers, including, without limitation, any net operating loss carryforwards and
tax refunds;

                  (e)  any  and  all of the  rights  of any  one or  more of the
Sellers  under,  with  respect to or related  to all  claims,  causes of action,
choses in action and rights of recovery (collectively, "Claims") any one or more
of the Sellers has, or may have, against:  (i) KPMG Peat Marwick LLP ("KPMG") or
any of its Affiliates; (ii) Genesis Insurance Company, Federal Insurance Company
or any of their respective Affiliates (collectively, the "Insurance Companies");
or (iii) any one or more parties  (but only insofar as those Claims  against any
one or more of such other  parties  relate to the  subject  matter of the Claims
against any one or more of KPMG and the Insurance Companies referred to above or
any of the Retained  Claims (as hereinafter  defined))  whether or not currently
pending;

                  (f) all  rights  of set off or  recoupment  held by any one or
more of the Sellers  against any  creditor  whose claims are not included in the
Assumed  Liabilities  (as  hereinafter  defined),  in each  case,  to the extent
related to those claims;


                                        4

<PAGE>



                  (g) all avoiding  power causes of action arising under Chapter
5 of Title 11 of the United States Code (the "Bankruptcy Code");

                  (h)  any  and  all of the  rights  of any  one or  more of the
Sellers   under,   with  respect  to  or  related  to  any  of  the   agreements
(collectively, the "Retained Agreements") between any one or more of the Sellers
and:  (i) Alvarez & Marsal,  Inc.;  (ii) Arthur  Andersen  LLP; and (iii) Lehman
Brothers, Inc.;

                  (i)  the  right,  if any,  of PCN to  receive  payment  of the
"Second Cash Payment" from Medical Manager  Northwest,  Inc. ("MMN") pursuant to
Article 2 of the Asset Purchase  Agreement dated as of July 2, 1999,  among PCN,
WM, Medical Manager and MMN (the "SmartPractice Agreement");

                  (j) copies of all:  (i)  minute  books and  related  corporate
records of any one or more of the Sellers;  and (ii) books of account,  records,
files,  invoices,  business  records and plans,  computer  print-outs  and other
related books and records as are  reasonably  necessary to permit the Sellers to
maintain and prepare such tax returns,  financial statements and other financial
information  as is required to be maintained  and prepared by any one or more of
the Sellers following the Closing Date,  including,  without  limitation,  those
required to be kept under applicable law; and

                  (k) all of the Sellers right, title and interest in and to any
one or more new bank accounts  established  by the Sellers after the date hereof
and  prior  to the  Closing  Date  which  are not  used in  connection  with the
operation of the Business (the "Closing  Account" and, together with the Medical
Account, the "Retained Accounts").

      1.3.  Instruments  of  Transfer.  On the Closing  Date,  the Sellers  will
deliver to the Purchaser,  or will cause to be delivered to the Purchaser,  duly
executed instruments of transfer and assignment in form and substance reasonably
satisfactory  to the  Purchaser  and  its  counsel,  sufficient  to  vest in the
Purchaser  good and valid  title to, and all of the  Sellers'  right,  title and
interest in and to, the Assets,  including,  without limitation,  one or more of
each of the following:

                  (a)      a bill of sale;

                  (b)      an assumption agreement;

                  (c)      an instrument of transfer and assignment of the
                           Intellectual Property;

                  (d)  assignments  by the  Sellers  of their  rights  under all
End-User  Agreements,  Third Party  Agreements,  Equipment  Leases and any other
contracts,  licenses,  and similar instruments which are included in the Assets;
and

                  (e) such other  instruments  of transfer and assignment as may
be reasonably necessary to transfer and assign the Assets to the Purchaser.

                                        5

<PAGE>



      1.4.  Delivery of  Possession.  At the  Closing,  the Seller will  deliver
possession  to the  Purchaser  of the Assets,  at the  locations  where,  in the
ordinary course of business, such are usually and customarily located.

      1.5.  Consents to  Assignment.  This  Agreement  shall not  constitute  an
agreement to assign or otherwise sell, convey or transfer any concession, claim,
contract,  license,  lease,  commitment,  sales order, or purchase order, or any
benefit arising thereunder or resulting  therefrom,  if an attempted  assignment
thereof,  without the consent required or necessary for such  assignment,  would
constitute  a breach  thereof or in any way  adversely  affect the rights of the
Purchaser or any one or more of the Sellers  thereunder.  If such consent is not
obtained,  or if an attempted assignment would be ineffective or would adversely
affect the Sellers'  rights  thereunder so that the Purchaser  would not in fact
receive all such rights,  the Sellers  shall  cooperate in any  arrangement  the
Purchaser  may at its option  reasonably  request in writing to provide  for the
Purchaser the benefits  under any such  concession,  claim,  contract,  license,
lease,  commitment  or  order,  including  enforcement  for the  benefit  of the
Purchaser  of any and all rights of the  Sellers  with  respect to the  Business
against  any other  party  thereto  arising  out of the  breach or  cancellation
thereof by such party or otherwise; provided, however, that nothing contained in
this  Section  1.5 shall  relieve the  Sellers,  or  constitute  a waiver by the
Purchaser,  of any  obligation  of the Sellers  provided  for  elsewhere in this
Agreement to obtain any such consent or approval or shall affect the  liability,
if any, of the Sellers,  and the rights,  if any, of the Purchaser,  pursuant to
this  Agreement,  for the failure of the Sellers to have disclosed the need for,
and for having failed to obtain, any such consents or approvals.

      Notwithstanding the foregoing,  this provision 1.5 shall not be applicable
and  shall  have no  force  or  effect  to the  extent  that  provision  for the
assignment  and  assumption  of any one or more  concessions,  claim,  contract,
license, lease, commitment, sales order or purchase order is provided for in the
Plan (as defined in section 7.1 hereof).

      1.6. Collection of Accounts  Receivable.  From and after the Closing Date,
the Sellers shall:  (i) instruct all account debtors of any Accounts  Receivable
and other  accounts  receivable  created by the Purchaser  following the Closing
with  respect  to the  Business  (together  with the  Accounts  Receivable,  the
"Purchaser  Receivables")  to forward  all  checks or other  forms of payment on
account  of  any  Purchaser  Receivable  (each  a  "Payment")  directly  to  the
Purchaser;  and (ii)  promptly  (but in no event more than two (2) business days
following  receipt) deliver to the Purchaser all Payments received by any of the
Sellers.

      1.7.  Certain  Ownership  Rights.  The name "Versyss" and all permutations
thereof are included in the Assets to be acquired by the Purchaser in accordance
with the terms of this Agreement;  provided, however, that, the Purchaser hereby
acknowledges  that the ownership and use of the name "Versyss" is subject to the
provisions of the Asset Purchase  Agreement,  dated as of April 26, 1999,  among
Versyss, PCN and Holbrook Systems, Inc.


2.    PURCHASE PRICE; FINANCING

                                                         6

<PAGE>



      2.1.        Consideration.  The aggregate purchase price to be paid by the
Purchaser in full consideration for the Assets shall be as follows
(collectively, the "Purchase Price"):

                  (a)  $15,500,000  in  immediately  available  funds (the "Cash
Payment")  which amount shall be payable by wire  transfer at the Closing to the
Closing Account (as defined in Section 1.2(k) hereto) designated by PCN prior to
the Closing Date;

                  (b) subject to Sections 2.4 and 2.5 below, the issuance to PCN
of a number of shares of the common stock,  $.01 par value,  of Medical  Manager
(the "Medical  Manager  Stock")  which,  on the third  business day prior to the
Closing Date (the "Trigger  Date") has an aggregate  Market Price (as defined in
Section 2.4 below) of  $37,500,000  (subject to  adjustment  as provided  for in
Section 2.3 below) (the "Stock Payment");

                  (c) the  assumption  by the  Purchaser  at the  Closing of the
Assumed Liabilities as provided in Section 3.1 hereof; and

                  (d) the  assumption  by the  Purchaser  of all of the Sellers'
obligations with respect to the  Pre-Petition  Loan and the DIP Loan (as defined
in Section 2.2 below).

      2.2.  Pre-Petition  and  Debtor-In-Possession  Financing.  (a) Each of the
parties hereto acknowledges that, simultaneously with the execution and delivery
of this Agreement,  pursuant to the Assignment,  Intercreditor and Subordination
Agreement,  Medical Manager has purchased from each of PCN's Lenders (as defined
therein) the  respective  Lender's pro rata share of  $1,500,000 of the Lenders'
outstanding  principal balance of their loans and the Lenders have advanced such
funds to PCN (the "Pre-Petition Loan") .

         (b)  Subject to the  approval  of the  Bankruptcy  Court (as defined in
Section 7.1 below),  promptly  following  the filing by PCN of the  Petition (as
defined in Section 7.1 below),  Medical Manager will commit to lend to PCN, from
time to time on the  terms  set  forth in the DIP  Loan  Agreement  (as  defined
below),  the principal sum of $3.5 million (the "DIP Loan").  The loan agreement
(the "DIP Loan Agreement")  evidencing the DIP Loan will be substantially in the
form of the DIP Loan  Agreement  attached  hereto  as  Exhibit  2.2(b).  Medical
Manager  agrees  that any amount of the DIP Loan which has not been  advanced to
PCN prior to the  Closing  Date  will be  advanced  by  Medical  Manager  to PCN
contemporaneously with the payment of the Cash Payment.

      2.3.  Adjustment to the Purchase Price. (a) Two business days prior to the
Closing, PCN shall, with the assistance, review and cooperation of the Purchaser
(which  assistance,  review and  cooperation  the  Purchaser  agrees to provide)
deliver to the  Purchaser  the PCN  Estimated  Closing Date Net Worth  Statement
(which net worth statement, PCN agrees shall: (x) constitute PCN's best estimate
of the values of the Assets to be acquired and Assumed Liabilities to be assumed
by the  Purchaser  at the  Closing;  (y) be  prepared  with  the  participation,
suggestions and review of a designee of the Purchaser and (z) have been prepared
by PCN  acting  reasonably  and in good  faith  and  shall be in the  form,  and
prepared in a manner and using methodology consistent with, each of the Audited

                                        7

<PAGE>



Statements (as defined in Section 5.6 hereto) and the statement  attached hereto
as Schedule 2.3). At the Closing,  the Purchaser  shall take from: (A) the Stock
Payment a number of shares of Medical  Manager  Stock  which,  using whole share
numbers,  have a Designated Value as closely as practicable  equal to two-thirds
(2/3) of the Adjustment  Deposit and deposit them with the Escrow Agent; and (B)
the Cash Payment an amount equal to the remainder of the Adjustment  Deposit and
deposit it with the Escrow Agent. As soon as practicable  following the Closing:
(i) but in no event later than thirty (30) days  following the Closing Date, the
Purchaser  shall,  with the full cooperation of any PCN officers not employed by
the Purchaser from and after the Closing Date  (including,  without  limitation,
the chief  financial  officer of PCN) (which  cooperation PCN agrees to cause to
occur),  close the books of accounts  of the  Sellers at the  Closing  Date and,
based upon such  closed  books of  account,  prepare  the  balance  sheet of the
Business  at the  Closing  Date  (the  "Closing  Date  Balance  Sheet")  and the
Purchaser  Closing Date Net Worth  Statement  (which balance sheet and net worth
statement,  the  Purchaser  agrees,  shall  have  been  prepared  by  it  acting
reasonably  and in good faith and shall be in the form, and prepared in a manner
and using  methodology  consistent with, each of the Audited  Statements and the
statement  attached hereto as Schedule 2.3); and (ii) but in no event later than
sixty  (60) days  after the date on which the  Closing  Date  Balance  Sheet and
Purchaser  Closing Date Net Worth  Statement are required to have been delivered
pursuant to the immediately preceding clause, the Purchaser shall: (w) cause the
Closing Date Balance  Sheet to be audited by Arthur  Andersen LLP, or such other
nationally recognized accounting firm as shall be reasonably agreed upon by each
of PCN and the Purchaser (the  "Auditors"),  (x) deliver to PCN the Closing Date
Balance Sheet,  reported upon by the Auditors (which,  for purpose of conducting
such audit,  will use substantially the same methodology and level of inquiry as
Arthur Andersen LLP used in connection with its audit of the Audited Statements)
(the "Audited Closing Date Balance  Sheet"),  (y) based upon the Audited Closing
Date  Balance  Sheet,  in good faith  itself  prepare and the deliver to PCN the
Audited  Purchaser  Closing Date Net Worth  Statement  (which Audited  Purchaser
Closing Date Net Worth  Statement,  the Purchaser agrees shall be prepared by it
acting  reasonably and in good faith and shall be in the form, and prepared in a
manner and using  methodology  consistent with the statement  attached hereto as
Schedule 2.3).

         (b) Within ten (10)  business  days  following  delivery of the Audited
Purchaser  Closing Date Net Worth  Statement by the Purchaser to PCN, PCN shall:
(i) provide the Purchaser with written notice (an  "Acceptance  Notice") that it
agrees with the calculation of the Purchaser  Adjustment Amount, in which event,
upon receipt by the Purchaser of the Acceptance Notice, the Purchaser Adjustment
Amount shall be deemed to be the Final  Amount;  or (ii)  provide the  Purchaser
with  written  notice  (a  "Disagreement  Notice")  that it  disagrees  with the
methodology upon which any one or more of the Audited Closing Balance Sheet, the
Audited  Purchaser  Closing Date Net Worth  Statement and the calculation of the
Purchaser Adjustment Amount was prepared.  Notwithstanding the foregoing, in the
event that PCN fails to deliver  either an Acceptance  Notice or a  Disagreement
Notice to the Purchaser by 11:59 p.m. on the tenth (10th) business day following
delivery  of the  Audited  Purchaser  Closing  Date Net Worth  Statement  by the
Purchaser to PCN, PCN shall be deemed to have delivered an Acceptance  Notice at
such time and the  Purchaser  Adjustment  Amount shall be deemed to be the Final
Amount.


                                        8

<PAGE>



         (c) If a  Disagreement  Notice shall be timely  delivered by PCN to the
Purchaser  pursuant to Section 2.3(b) above,  the parties shall,  during the ten
(10) business days  following  such delivery,  use their  reasonable  efforts to
reach  agreement  on the  disputed  items or amounts in order to  determine  the
amount of the Final Amount.  If,  during such period,  the parties are unable to
reach  such  agreement,  they shall  promptly  thereafter  cause an  independent
accounting firm of nationally recognized standing reasonably satisfactory to all
of the parties (which firm shall not have any material  relationship with any of
the  parties),  promptly  to review this  Agreement  and the  disputed  items or
amounts  for the  purpose  of  calculating  the Final  Amount.  In  making  such
calculation,  such  independent  accountants  shall consider only those items or
amounts in the Audited  Purchaser  Closing Date Net Worth  Statement as to which
PCN has disagreed.  Such  independent  accountants  shall deliver to PCN and the
Purchaser, as promptly as practicable,  a report setting forth such calculation.
Such report shall be final and binding on the parties  hereto.  The cost of such
review and report shall be borne equally by PCN and the Purchaser.

         (d) The parties hereto agree that they will cooperate and assist in the
preparation of PCN Estimated Closing Date Net Worth Statement,  the Closing Date
Balance  Sheet,  the  Purchaser  Closing Date Net Worth  Statement,  the Audited
Closing  Date  Balance  Sheet,  the  Audited  Purchaser  Closing  Date Net Worth
Statement,  the  calculation  of the Final  Amount  and in the  review,  if any,
contemplated by Sections 2.3 (b) and (c) above,  including,  without limitation,
the making available to the extent necessary of books,  records, work papers and
personnel. PCN agrees that it will use all reasonable efforts to cause the chief
financial  officer  of PCN to  fully  cooperate  and  assist  the  Purchaser  in
connection  with  the  preparation  of the  Purchaser  Closing  Date  Net  Worth
Statement,  the Closing Date  Balance  Sheet,  the Audited  Closing Date Balance
Sheet and the Audited Purchaser Closing Date Net Worth Statement.

         (e) On the Release Date,  if the Final Amount is an Adjustment  Amount:
(x) number of shares of Medical Manager Stock which,  using whole share numbers,
have a Designated  Value as closely as practicable  equal to two-thirds (2/3) of
such Final Amount shall be released by the Escrow Agent to the Purchaser and any
remaining  shares of Medical Manager Stock  constituting  part of the Adjustment
Deposit  shall be released by the Escrow Agent to PCN; and (y) an amount of cash
equal to the  remaining  portion of such Final  Amount  shall be released by the
Escrow Agent to the Purchaser  and any  remaining  cash held by the Escrow Agent
shall be  released  by the Escrow  Agent to PCN.  In no event shall PCN have any
obligation to Medical  Manager or the Purchaser for the payment of any amount of
cash or shares of Medical Manager Stock in excess of the amounts thereof held by
the Escrow Agent as the Adjustment Deposit pursuant to this Section 2.3.

         (f) On the Release Date, if the Final Amount is an Excess  Amount:  (i)
all cash and shares of Medical  Manager  Stock held by the Escrow Agent shall be
released by the Escrow Agent to PCN; and (ii) the Purchaser  shall pay to PCN an
amount in cash equal to: (x) if the Excess Amount is $250,000 or less, zero; (y)
if the  Excess  Amount  is  greater  than  $250,000  but  equal to or less  than
$500,000,  the amount by which the Excess Amount exceeds $250,000; or (z) if the
Excess Amount is greater than $500,000, $250,000 plus 50% of the amount by which
the Excess Amount exceeds $500,000; provided, however, that, notwithstanding the
foregoing, in no event shall the amount to

                                        9

<PAGE>



be paid by the  Purchaser  to PCN pursuant to this clause (ii) exceed the amount
of the Excess Cash (as  defined in Section 1.1 above)  included in the Assets on
the Audited Purchaser Closing Date Net Worth Statement less $250,000.

         (g) For purposes of this Section 2.3, each of the following capitalized
terms shall have the meaning ascribed to it below:

      "Adjustment  Amount"  means the  amount,  if any,  by which the  Liability
Excess Amount exceeds the Permitted Liability Excess Amount.

      "Adjustment  Deposit" means an amount equal to the greater of: (i) 150% of
the amount  disclosed as the  Adjustment  Amount,  if any, on the PCN  Estimated
Closing Date Net Worth Statement; and (ii) $2.5 million.

      "Audited  Purchaser  Closing Date Net Worth Statement" means the Purchaser
Net Worth  Closing  Statement  reported  upon by the Auditors and required to be
delivered by the Purchaser to PCN after the Closing.

      "Closing Date Net Worth  Statement" means any Net Worth Statement dated as
of the Closing Date prepared  pursuant to this Section 2.3,  including,  without
limitation, the PCN Estimated Closing Date Net Worth Statement.

      "Designated Value" means the Market Price of the Medical Manager Stock on
the Trigger Date.

      "Escrow  Agent" means an escrow agent  designated by PCN and the Purchaser
prior  to  the  Closing  (each  hereby  agreeing  to do  so)  pursuant  to  such
agreements,  instruments and documents reasonably  acceptable to each of PCN and
the Purchaser.

      "Excess Amount" means the amount, if any, by which the Permitted Liability
Excess Amount exceeds the Liability Excess Amount.

      "Final  Amount"  means the amount  agreed upon as or  determined to be the
final  Adjustment  Amount or the final Excess Amount as provided for in Sections
2.3(b) and (c) above.

      "Liability  Excess  Amount" means the amount,  if any, by which the values
ascribed to  liabilities  on any  Closing  Date Net Worth  Statement  exceed the
values ascribed to assets on that Closing Date Net Worth Statement.

      "Net  Worth  Statement"  means  PCN's  Regular  Balance  Sheet,  assuming,
however,  for this purpose,  that PCN had no assets other than  tangible  assets
that would constitute  Assets and had no liabilities other than liabilities that
would constitute Assumed Liabilities  (exclusive,  however, for this purpose, of
Assumed Liabilities which would constitute Severance Obligations, Rejection

                                       10

<PAGE>



Liabilities and liabilities with respect to the Pre-Petition  Loan, the DIP Loan
and the Assigned Loans).

      "PCN Estimated  Closing Date Net Worth  Statement" means the estimated Net
Worth Statement required to be delivered by PCN to the Purchaser at the Closing.

      "PCN's  Regular  Balance  Sheet" means a balance  sheet of PCN prepared in
accordance with generally  accepted  accounting  principles,  applied on a basis
consistent with those applied in the Audited Statements.

      "Permitted Liability Excess Amount" means $13 million.

      "Purchaser  Adjustment  Amount" means the amount, if any, disclosed as the
Adjustment  Amount on the Audited  Purchaser  Closing Date Net Worth  Statement;
provided,  however,  that if the Purchaser  does not timely  deliver  either the
Purchaser  Closing  Date Net Worth  Statement  to PCN as provided for in Section
2.3(a) above or the Audited  Closing Date Net Worth Statement to PCN as provided
for in Section 2.3(a) above, the Purchaser  Adjustment  Amount, if any, shall be
deemed to be the Adjustment  Amount,  if any, on the PCN Estimated  Closing Date
Net Worth Statement.

      "Purchaser Closing Date Net Worth Statement" means the Net Worth Statement
required to be delivered by the Purchaser to PCN after the Closing.

      "Release  Date" means the first to occur of: (i) if the  Purchaser has not
delivered the Purchaser Closing Date Net Worth Statement to PCN by 11:59 p.m. on
the thirtieth (30th) day following the Closing Date, the thirty-first (31st) day
following the Closing Date;  (ii) if the Purchaser has not delivered the Audited
Purchaser Closing Date Net Worth Statement to PCN by 11:59 p.m. on the ninetieth
(90th) day following the Closing Date, the ninety-first (91st) day following the
Closing  Date;  or  (iii)  the  date  on  which  there  is  agreement  or  final
determination  of the  calculation  of the Final  Amount as provided for in this
Section 2.3.

      2.4. Stock Payment.  (a) As used in this  Agreement,  "Market Price" shall
mean the average of the closing sale price of a share of Medical  Manager  Stock
during the ten (10) trading days  immediately  preceding (and not including) the
Trigger  Date as reported on the NASDAQ  Stock  Market (or, if shares of Medical
Manager Stock are not then traded on the NASDAQ Stock Market, as reported on the
primary exchange on which such shares are so traded).

         (b) All shares of Medical  Manager  Stock issued by Medical  Manager as
part of the Stock Payment shall be duly authorized,  validly issued,  fully paid
and non-assessable shares of Medical Manager Stock.

         (c) As promptly  as  practicable  following  the date  hereof,  Medical
Manager will seek, and take all steps reasonably  necessary to obtain,  from the
Staff of the  Division of  Corporation  Finance of the  Securities  and Exchange
Commission (the "SEC") a no action letter (the "No Action Letter")

                                       11

<PAGE>



that, in reliance on the exemption provided by Section 1145(a) of the Bankruptcy
Code: (i) the Medical  Manager Stock to be issued by Medical  Manager as part of
the Stock  Payment may be issued to holders of PCN's common stock and  preferred
stock  and  others   with   claims  of  or  against   PCN   (collectively,   the
"Distributees")  pursuant to the Plan without  registration  under the 1933 Act;
and (ii) the shares of Medical Manager Stock issued under the Plan may be resold
without  registration under 1933 Act by selling security holders who are neither
affiliates  of Medical  Manager nor  underwriters  within the meaning of Section
1145(b)(i) of the Bankruptcy Code.  Medical Manager agrees that, for purposes of
obtaining  the No Action  Letter,  it will  acknowledge  that,  for  purposes of
Section 1145(a) of the Bankruptcy Code, Medical Manager will be a "successor" to
the Sellers.

         (d) In the event that on or before the  sixtieth  (60th) day  following
the date  hereof,  Medical  Manager  has not  obtained  the No Action  Letter or
received  reasonable  assurance  from the staff of the  Division of  Corporation
Finance of the SEC that the No Action  Letter will be issued on or before  March
31,  2000,  each of the Sellers and  Medical  Manager  will seek an order of the
Bankruptcy  Court (the "Order")  that in reliance on the  exemption  provided by
Section  1145(a) of the  Bankruptcy  Code:  (i) the Medical  Manager Stock to be
issued by  Medical  Manager  as part of the Stock  Payment  may be issued to the
Distributees  pursuant to the Plan without  registration under the 1933 Act; and
(ii) the shares of Medical  Manager  Stock  issued  under the Plan may be resold
without  registration under 1933 Act by selling security holders who are neither
affiliates  of Medical  Manager nor  underwriters  within the meaning of Section
1145(b)(i) of the Bankruptcy Code.

         (e) In the event that on or before the seventieth  (70th) day following
the date hereof,  Medical  Manager has not (x) obtained the No Action  Letter or
received  reasonable  assurance  from the staff of the  Division of  Corporation
Finance of the SEC that the No Action  Letter will be issued on or before  March
31, 2000 or (y) obtained the Order, Medical Manager will, as soon as practicable
after such 70th day, at its own cost and expense,  prepare and file with the SEC
a registration statement (a "Registration  Statement") to register under Section
5 of the 1933 Act the  distribution  by PCN of  Medical  Manager  Shares  to the
Distributees and the sale by all  Distributees of such shares following  receipt
thereof.  Medical  Manager  will  use  all  reasonable  efforts  to  cause  such
Registration  Statement be declared  effective by the SEC on or before March 31,
1999.  Medical  Manager will also  provide PCN as many copies of the  prospectus
contained in any such registration statement as it may reasonably request.

         (f) Prior to the Closing Date,  Medical  Manager will take all required
action  to permit it to issue the  number  of shares of  Medical  Manager  Stock
required  to be issued by it  pursuant  to this  Agreement,  including,  without
limitation,  filing for listing of such shares on the NASDAQ  Stock Market prior
to the Closing Date.

      2.5. Cash Election.  Anything  contained in this Agreement to the contrary
notwithstanding,  at any time prior to the fifth (5th) business day prior to the
date on which the  Confirmation  Order (as  defined  in Section  7.1  hereof) is
signed by the Bankruptcy Court, the Purchaser may by written notice delivered to
PCN irrevocably  elect to pay the entire Purchase Price in cash rather than part
in

                                       12

<PAGE>



cash and part in shares of Medical Manager Stock (the "Cash  Election").  In the
event that the Purchaser exercises the Cash Election: (i) all references in this
Agreement to the Stock Payment  shall be deemed to refer to an  additional  cash
payment in the amount of  $37,500,000  (subject to adjustment as provided for in
Section 2.3 above);  (ii) the  provisions of Section 2.3 and the  adjustments to
the Purchase Price contained therein shall be deemed  appropriately  modified to
reflect the fact that the entire Purchase Price will be paid in cash;  (iii) the
provisions of Section 2.4 above shall no longer apply;  and (iv) the  conditions
to the Closing  contained in Section  11.1(e) and 11.3(g)  below shall no longer
apply.

      2.6.  Allocations of Purchase Price.  Within sixty (60) days following the
Closing Date,  the Purchaser  shall prepare a schedule of the  allocation of the
Purchase  Price.  Subject to the  consent  of PCN,  which  consent  shall not be
unreasonably  withheld, the Sellers and Purchaser shall use and cause to be used
such allocation for all federal, state and local income tax purposes, including,
without limitation,  the preparation and filing of their respective counterparts
of Form 8594 (or any other  form  hereafter  mandated  by the  Internal  Revenue
Service  ("IRS")) as  required  by the  regulations  under  Section  1060 of the
Internal Revenue Code of 1986, as amended ("Code").


3.    ASSUMPTION OF LIABILITIES

      3.1.  Assumption.  Upon  transfer of the Assets on the Closing  Date,  and
subject to Section 3.2 hereof,  the Purchaser  will assume and  thereafter  pay,
perform and discharge, when due, to the extent not paid, performed or discharged
by the Sellers on or before the Closing Date, the Assumed  Liabilities.  As used
herein  the  term  "Assumed  Liabilities"  means,  collectively,  the  following
obligations  and  liabilities,  other than any such  obligations and liabilities
that are Retained Liabilities (as defined in Section 3.2 below):

                  (a)  all   liabilities  and  obligations  of  the  Sellers  at
September  30, 1999 which are  reflected in the column "Net Worth  Statement" on
Schedule 2.3 hereto (the "Liability Statement") (as supplemented by the schedule
of "Accrued Other" attached to Schedule 2.3);

                  (b) all  liabilities and obligations of any one or more of the
Sellers which are of the type  reflected in the column "Net Worth  Statement" on
the Liability  Statements (as  supplemented  by the schedule of "Accrued  Other"
attached  to  Schedule  2.3) and are  incurred  in the  ordinary  course  of the
Business  since  September  30, 1999,  including,  without  limitation:  (i) any
liabilities and  obligations of the Sellers for accounts  payable (the "Accounts
Payable")  existing  on the  Closing  Date;  (ii)  to the  extent  appropriately
reflected on the Audited  Purchaser  Closing Date Net Worth Statement,  (x) such
obligations  of any one or more of the  Sellers,  if any,  to any  employee  for
accrued  compensation,  benefits and vacation  days existing on the Closing Date
and (y) such obligations  arising as a result of the Sellers no longer operating
as going-concerns from and after the Closing Date;


                                       13

<PAGE>



                  (c) the obligations of any one or more of the Sellers relating
to or arising  under:  (i) the End-User  Agreements  (such as, by way of example
only,  any such  liability or obligation  for which  deferred  software  support
liability,  deferred hardware maintenance liability or both has been recorded on
the  Sellers'  books (the  "Deferred  Revenue  Account");  (ii) any  warranty or
service commitments of the Sellers to any End User or Reseller;  (iii) the Third
Party  Agreements;  and (iv) commitments by the Sellers to install their medical
practice management software products (and related hardware);

                  (d) all  liabilities or damages  arising from the rejection by
any one or more of the Sellers of any Unexpired Leases (as hereinafter  defined)
and Unexpired  Executory  Contracts (as hereinafter  defined) as provided for in
Section 7.1 hereof (the "Rejection Liability");

                  (e) all  liabilities and obligations of any one or more of the
Sellers to Medical  Manager with respect to the $2,000,000  principal  amount of
the Assigned Loans (as defined in the Assignment and Intercreditor Agreement (as
defined in Schedule 3.2(g) hereto)); and

                  (f) all  liabilities and obligations of any one or more of the
Sellers with respect to the Pre-Petition Loan and the DIP Loan.

                  Nothing contained in this Section 3.1 is intended to, or shall
be construed so as to create any third party  beneficiaries of this Agreement or
otherwise  confer any rights upon any person,  firm or corporation that is not a
party hereto, including,  without limitation, any employee, customer or creditor
of any one or more of the  Sellers,  the  Purchaser  or any of their  respective
Affiliates.  Without in any way limiting the foregoing,  it is not the intention
of either the  Purchaser or the Sellers that the  assumption by the Purchaser of
the Assumed  Liabilities  shall in any way  enlarge the rights of third  parties
under  contracts or  arrangements  with the  Purchaser  or the Sellers.  Nothing
contained  herein shall prevent the Purchaser from  contesting in good faith any
of the Assumed Liabilities with any third party.

      3.2.  Limitations on Assumption.  Any other provision of this Agreement to
the contrary  notwithstanding,  neither the Purchaser nor any of its  Affiliates
will  or does  assume  any  liability  or  obligation  of any one or more of the
Sellers  (whether now existing or hereafter  arising,  whether known or unknown)
relating  to or  arising  out  of  any of the  following  (all  liabilities  and
obligations   not  so  assumed   collectively   referred  to  as  the  "Retained
Liabilities" and, accordingly, the definition of "Assumed Liabilities" shall not
include any of the following):

         (a) any  liability  or  obligation  of any one or more of the  Sellers,
absolute  or  contingent,  known  or  unknown,  not  expressly  included  in the
definition of Assumed Liabilities provided for in Section 3.1 above;

         (b)  the  preparation  or   presentation  of  the  Sellers'   financial
statements or any other accounting matters,  including,  without limitation, the
matters referred to in the litigation  referred to as "In Re Physician  Computer
Network Securities Litigation" (the "Class Action Litigation");

                                       14

<PAGE>



         (c) any  liability or obligation of any one or more of the Sellers with
respect to any action, suit, proceeding,  arbitration,  investigation or hearing
pending as of the Closing Date (the "Retained Litigation"),  including,  without
limitation:

                  (i) the Class Action  Litigation  or any other  action,  suit,
proceeding, arbitration,  investigation or hearing related to the subject matter
thereof,  including,  without limitation, the Claims asserted against PCN by any
one or more of Ronald Holden,  Gordon Romer,  John Mortell and Genesis Insurance
Company;

                  (ii) any investigation by a governmental  agency or authority,
including,  without  limitation,  the  United  States  Securities  and  Exchange
Commission  or the  United  States  Attorney's  Office for the  District  of New
Jersey, in each case, pending on the Closing Date;

         (d) any Claims  for  damages  against  PCN,  to the extent the  subject
matter of those  Claims  involves the sale or other  issuance of PCN  securities
(such  Claims,  together  with the  Class  Action  Litigation  and the  Retained
Litigation, being referred to herein as the "Retained Claims");

         (e) any Claims of any person for contribution or  indemnification  from
any one or more of the Sellers, to the extent the subject matter of those Claims
involves any one or more of the items referred to in subsection  (b), (c) or (d)
of this Section 3.2;

         (f)       any Claims against the Sellers for payment of:

                  (i) any domestic  (federal,  state or local) or foreign sales,
use,  payroll,  unemployment,  withholding  or franchise  taxes,  together  with
interest and penalties thereon, due or due to become due from any one or more of
the  Sellers:  (x) on  account of the  operation  of the  Business  prior to the
Closing  Date  (except  to the extent  appropriately  accrued  for on  Liability
Statement  (which  amounts shall  constitute  Assumed  Liabilities));  or (y) on
account of the transactions called for by this Agreement;

                  (ii) any domestic (federal,  state or local) or foreign income
taxes,  together with interest and penalties thereon,  due or to become due from
any one or more of the Sellers;

         (g)  any  Claims  against  any one or more  of the  Sellers  under  the
Sellers'  senior  credit  facility  referred to on Schedule  3.2 (g) hereto (the
"Bank Debt") (other than with respect to the Assigned Loans);

         (h) any  obligation of any one or more of the Sellers to pay any legal,
accounting,  investment banker or other professional fees incurred by any one or
more of the Sellers:  (i) in connection  with or related to the  negotiation  of
this  Agreement,  the  consummation  of the  transactions  contemplated  by this
Agreement or the bankruptcy  proceedings  described in Article 7 below;  or (ii)
except as accrued for on the  Liability  Statement  and arising in the  ordinary
course of

                                       15

<PAGE>



the Sellers'  Business (which amounts shall,  notwithstanding  the provisions of
Section 3.2(c) above,  constitute Assumed  Liabilities),  in connection with any
other matter;

         (i)  liabilities or  obligations  incurred as a result of activities of
any one or more of the Sellers, their respective Affiliates and their respective
successors and assigns after the Closing Date;

         (j) liabilities or obligations of any one or more of the Sellers or any
of their  respective  Affiliates  (x) under or pursuant  to any of the  Retained
Agreements or (y) with respect to the Sale Bonuses;

         (k) except for the  agreements  of the  Purchaser  and Medical  Manager
specifically  provided for in Section 10.4 below, any liabilities or obligations
of any one or more of the Sellers to any person  arising  from the  publication,
sale  or  distribution  by any one or more of the  Sellers  of any  software  or
hardware  product  which is not Y2K  Compliant  (as  defined in Section  5.14(d)
below);

         (l) liabilities or obligations of any one or more of the Sellers to the
extent  arising from or relating to the breach by any one or more of the Sellers
occurring on or before the Closing Date of any of the terms or provisions of any
Third Party Agreement,  End User Agreement,  warranty or service  commitments or
installation commitments;

         (m) liabilities or obligations of any one or more of the Sellers to any
of their  shareholders,  warrant holders or option holders, in their capacity as
shareholders, warrant holders and option holders, respectively; and

         (n)  liabilities or obligations of any one or more of the Sellers under
or with respect to the PCN 401(k) Plan.

      3.3. Right of Enforcement and Settlement. From and after the Closing Date,
the Purchaser will have complete  control over the payment,  settlement or other
disposition of the Assumed  Liabilities  and the right to commence,  conduct and
control all negotiations and proceedings with respect thereto.  The Sellers will
notify the Purchaser promptly of any claim made with respect to any such Assumed
Liabilities  and will not, except with the  Purchaser's  prior written  consent,
volun tarily make any payment of,  settle or offer to settle,  or consent to any
compromise or admit liability with respect to any such Assumed Liabilities.  The
Sellers will cooperate with the Purchaser in any reasonable  manner requested by
the Purchaser in connection with any  negotiations or proceedings  involving any
Assumed Liabilities.

      3.4.  Reimbursement  in Lieu of  Assumption.  In the event that any one or
more of the Assumed  Liabilities  constitutes  an  obligation  to pay money to a
third  party on or  immediately  following  the  Closing  Date,  with the mutual
agreement  of the parties  hereto,  which  agreement  shall not be  unreasonably
withheld,  subject to the provisions of the  Bankruptcy  Code and any applicable
order of the Bankruptcy  Court,  such  obligation:  (i) shall be retained by the
Sellers; and (ii)

                                       16

<PAGE>



contemporaneously  with the  payment  by the  Purchaser  to the  Sellers  of the
Purchase Price, the Purchaser shall also pay to the Sellers the amount necessary
for the Sellers to fully pay and satisfy  such  obligation  (any such  payments,
together  with the Agreed  Reimbursement  Amount (as defined in Section  10.2(b)
hereof), being referred to herein, collectively, as the "Reimbursement Amount");
provided,  however, that, to the extent that any such obligation would have, but
for the provisions of this Section 3.4,  constituted an Assumed  Liability to be
included on a Closing  Date Net Worth  Statement  and taken into  account in the
calculations  required in accordance  with Section 2.3 hereof,  such  obligation
shall be deemed to continue to constitute an Assumed Liability for such purpose.

4.    CLOSING

         The  closing  of  the  transactions  to  be  effected   hereunder  (the
"Closing") will occur within two business days following the satisfaction of the
condition set forth in Section 11.1(a) below (the "Closing  Date").  The Closing
shall take place at the offices of Gordon Altman  Weitzen Shalov & Wein, LLP 114
West 47th Street,  20th Floor,  New York,  New York  10036-1510 or at such other
place and at such other time as the parties  hereto may agree.  For  purposes of
preparing any Closing Date Net Worth  Statement,  the Closing shall be deemed to
have occurred at 11:59 PM on the Closing Date.

5.    REPRESENTATIONS AND WARRANTIES OF THE SELLERS

         The Sellers  hereby  represent and warrant to the Purchaser and Medical
Manager that the following are true and correct:

      5.1.  Existence and Authority.  (a) PCN is a corporation  duly  organized,
validly existing and in good standing under the laws of the State of New Jersey.
Each of Versyss and HP are corporations duly organized,  validly existing and in
good standing under the laws of the State of Delaware.  WM is a corporation duly
organized,  validly existing and in good standing under the laws of the State of
Washington.  IHS is a corporation  duly organized,  validly existing and in good
standing  under  the laws of the State of  California.  Each of the  Sellers  is
authorized  or  licensed  to do  business  in each  jurisdiction  in  which  the
character  and location of its assets or the nature of its  business  makes such
qualification  necessary,  except to the extent  that the  failure to so qualify
would  not  have an  adverse  effect  on any one or more of the  Sellers  or the
Business.  Each of the Sellers has all requisite power and authority to execute,
deliver  and  perform  this  Agreement  and  to  consummate   the   transactions
contemplated hereby and has all requisite power and authority, licenses, permits
and  franchises  to own or lease and  operate  its  properties  and carry on its
business as it is presently being conducted.

                  (b) The principal  executive offices of PCN, HP, Versyss,  IHS
and WM are located at 1200 The American Road, Morris Plains,  New Jersey.  Since
January 1, 1994: (i) the name of PCN has been "Physician Computer Network, Inc."
and, except as set forth on Schedule 5.1(b) hereto, it has neither used nor done
business under any other name in any jurisdiction;  (ii) the name of Versyss has
been "VERSYSS Incorporated" and it has neither used nor done business under any

                                       17

<PAGE>



other name in any  jurisdiction;  (iii) the name of WM has been  "Wismer*Martin,
Inc." and it has  neither  used nor done  business  under any other  name in any
jurisdiction;  and (iv) the name of IHS has  been  "Integrated  Health  Systems,
Inc." and it has  neither  used nor done  business  under any other  name in any
jurisdiction.  Since the date of its formation,  the name of HP has been "PCN HP
Venture  Corp."  and,  except as set forth on  Schedule  5.1(b)  hereto,  it has
neither used nor done business under any other name in any jurisdiction.

                  (c) Except as set forth in Schedule 5.1(c) hereto, none of the
Sellers: (i) has any direct or indirect Subsidiaries (whether or not active); or
(ii) owns or holds any capital stock, partnership interest,  membership interest
or other similar equity interest in any other person or entity.

      5.2.  Authorization  of  Agreement.  Except as set forth on  Schedule  5.2
hereto,  the  execution,  delivery and  performance  of this  Agreement  and the
Ancillary  Documents  (as  hereinafter  defined) by any of the Sellers which are
parties thereto,  and the consummation of the transactions  contemplated  hereby
and thereby,  have been duly and validly  authorized by all necessary  corporate
action.  This  Agreement  has been and,  when  executed by the Sellers which are
parties  thereto,  the applicable  Ancillary  Documents will be duly and validly
executed and delivered by each of the Sellers which are parties thereto. Subject
to the approval of the Bankruptcy  Court,  this Agreement  constitutes and, when
executed by the Sellers which are parties thereto,  and the applicable Ancillary
Documents will constitute  valid and binding  obligations of each of the Sellers
party thereto, each enforceable in accordance with its terms.

      5.3. Effect of Agreement,  Etc. Except as set forth on Schedule 5.3 hereto
and except as may be required by the Bankruptcy  Code,  the execution,  delivery
and performance of this Agreement and the applicable  Ancillary Documents by the
Sellers and consummation by the Sellers of the transactions  contemplated hereby
and  thereby,  will not,  with or without  the giving of notice and the lapse of
time, or both: (a) violate any provision of law,  statute,  rule,  regulation or
executive  order to which any one or more of the  Sellers,  the  Business or the
Assets is subject; (b) violate any judg ment, order, writ or decree of any court
to which any one or more of the Sellers,  the Business or the Assets is subject;
or (c) result in the breach of or conflict with any term, covenant, condition or
provision of, result in or permit any other party to cause the  modification  or
termination  of,  constitute  a default  under,  or result  in the  creation  or
imposition of any lien,  security  interest,  charge or encum brance upon any of
the Assets pursuant to any partnership agreement,  corporate charter or by-laws,
commitment,   lease,  mortgage,   contract  or  other  agreement  or  instrument
(including,  without limitation, any of the End-User Agreements) to which one or
more of the  Sellers  is a party  or by which  any of the  Assets  are  bound or
affected.

      5.4. Restrictions;  Burdensome Agreements. Except as set forth on Schedule
5.4  hereto,  none of the  Sellers  is a party to any  contract,  commitment  or
agreement, nor, except for the Bankruptcy Code, are any of the Sellers or any of
the Assets subject to, or bound by, any order,  judgment,  decree, law, statute,
ordinance, rule, regulation or other restriction of any kind or character, which
would  prevent any of the Sellers  from  entering  into this  Agreement  or from
consummating the transactions contemplated by this Agreement as it is written.

                                       18

<PAGE>



      5.5.  Governmental  and Other  Consents.  Except for  compliance  with the
provisions  of the  Hart-Scott-Rodino  Antitrust  Improvement  Act of  1996,  as
amended  (the "HSR") and the  Bankruptcy  Code,  and except  those  consents the
failure of which to obtain will not  prohibit or delay the  consummation  of the
transactions contemplated by this Agreement, except as set forth on Schedule 5.5
hereto,  no consent,  authorization  or approval  of, or  exemption by or filing
with, any foreign or domestic  governmental,  public or self-regulatory  body or
authority is required in connection with the execution, delivery and performance
by any of the Sellers of this Agreement or the applicable Ancillary Documents or
the taking of any action herein or therein contemplated.

      5.6.  Financial  Statements.  PCN has  delivered  to Medical  Manger,  and
included as Schedule  5.6 hereto,  are correct and  complete  copies of: (i) the
consolidated  balance  sheets  of PCN and its  consolidated  subsidiaries  as at
December 31, 1998,  1997 and 1996 (as  restated),  and the related  consolidated
statements of operations,  changes in  shareholders'  equity  (deficit) and cash
flows for the years ended  December 31, 1998 and 1997,  together with the report
thereon  by  Arthur  Andersen  LLP  (the  "1998   Statements");   and  (ii)  the
consolidated  balance  sheet  of PCN and  its  consolidated  subsidiaries  as at
September  30, 1999,  and the related  consolidated  statements  of  operations,
changes  in  shareholders'  equity  (deficit)  and cash flows for the nine month
period ended  September  30, 1999,  together  with the report  thereon by Arthur
Andersen LLP (the "Audited  Statements" and,  together with the 1998 Statements,
the "Financial  Statements").  Also included as part of Schedule 5.6 hereto, but
not  included  within  the  definition  of the  "Financial  Statements",  is the
statement of  operations,  changes in  shareholders'  equity  (deficit) and cash
flows of PCN and its  consolidated  subsidiaries for the year ended December 31,
1996. The Financial Statements: (i) are in accordance with the books and records
of the Sellers;  (ii) have been prepared in accordance  with generally  accepted
accounting  principles ("GAAP") applied on a consistent basis during the periods
involved (except as indicated in the notes thereto); and (iii) fairly present in
all material  respects in accordance  with  applicable  requirements of GAAP the
consolidated balance sheets of PCN and its consolidated subsidiaries as at their
respective  dates and the  consolidated  statements  of  operations,  changes in
shareholders' equity (deficit) and cash flows for the periods then ended.

      5.7. Absence of Certain Changes or Events. Except as set forth on Schedule
5.7 hereto,  since September 30, 1999 none of the Sellers have: (i) suffered any
adverse change in, or the occur rence of any events (exclusive of general market
or industry information) which,  individually or in the aggregate,  have had, or
might reasonably be expected to have, a material adverse effect on the Business'
condition  (financial  or  otherwise),  results  of  operations,  properties  or
business or on the Assets; (provided, however, that each of the Sellers, Medical
Manager and the Purchaser  acknowledge  the liquidity  problems  suffered by the
Sellers,  as well as the  disclosure of certain  accounting  improprieties  with
respect to PCN's  financial  statements  and agrees  that,  for purposes of this
Section 5.7, such  liquidity  problems and  disclosure  shall not  constitute an
adverse change);  (ii) incurred damage to or destruction of any of the Assets by
casualty,  whether or not covered by insurance, or suffered or became subject to
any pending or threatened condemnation of property;  (iii) incurred any material
obligations  or  liabilities  (fixed or  contingent)  except (A) in the ordinary
course  of  business,  none  of  which  were  entered  into  for  an  inadequate
consideration,  (B)  obligations  and  liabilities  under  the  Commitments  (as
hereinafter defined) to the extent required thereby, and (C)

                                       19

<PAGE>



obligations  and liabilities  under this Agreement;  (iv) made any change in the
nature of the  Business;  (v)  mortgaged,  pledged,  assigned,  hypothecated  or
subjected  to  lien or any  other  encumbrance  any of the  Assets;  (vi)  sold,
transferred  or leased any of the  Assets,  except in each case in the  ordinary
course of business and  consistent  with past  practice;  (vii) sold,  assigned,
transferred,  or  granted  any  rights  under  or with  respect  to,  any of its
licenses, agreements,  patents, inventions,  trademarks, trade names, copyrights
or formulae or with  respect to know-how or any other  intangible  asset in each
case to the extent related to the Business and, in each case,  other than in the
ordinary  course of business  consistent  with past practice;  (viii) amended or
terminated any of its contracts,  agreements, leases or arrangements relating to
the Business other than in the ordinary course of business  consistent with past
practice;  (ix) waived or released any other rights with respect to the Business
other than in the ordinary course of business consistent with past practice; (x)
had work performed  which could give rise to mechanics liens with respect to any
of the Assets  which has not been paid or which  payment  has not been  provided
for; or (xi) entered  into any other  material  transaction  with respect to the
Business not in the ordinary course of business.

      5.8. Deferred Revenue Account.  (a) Schedule 5.8(a) hereto contains a true
and correct  schedule and  calculation of  obligations  included in the Deferred
Revenue  Account as of  September  30,  1999 which  constitute  liabilities  and
obligations  of the  Sellers  to provide to End Users  maintenance  and  support
services for application  software products of or supported by the Business (the
"Deferred Software Maintenance Obligations").  All Deferred Software Maintenance
Obligations have arisen in the ordinary course of business  consistent with past
practice.

                  (b)  Schedule  5.8(b)  hereto  contains  a  true  and  correct
schedule and calculation of obligations included in the Deferred Revenue Account
as of September 30, 1999 which  constitute  liabilities  and  obligations of the
Sellers to provide to End Users  maintenance  and support  services for computer
hardware,  operating system software, parts and related equipment (the "Deferred
Hardware Maintenance Obligations").  Except as set forth on Schedule 5.8(b), all
Deferred Hardware Maintenance  Obligations have arisen in the ordinary course of
business consistent with past practice.

      5.9.  Accounts  Receivable.  Set forth on  Schedule  5.9 hereto is a true,
correct and complete schedule (the "Account Receivable Schedule") setting forth:
(i) all of the Accounts  Receivable as of September 30, 1999; and (ii) the aging
thereof.  The Accounts Receivable listed on the Accounts Receivable Schedule are
valid and genuine,  have arisen only from bona fide transactions in the ordinary
course of business and are properly  recorded in the Sellers' books and records.
The Sellers do not have any knowledge or any reason to believe that,  subject to
the reserve listed on Schedule 5.9, such  receivables are not collectible in the
ordinary  course of  business,  consistent  with the  Sellers'  past  collection
practice.

      5.10. Accounts Payable.  Schedule 5.10 hereto contains a true and complete
list of all Accounts  Payable as of September 30, 1999. All Accounts Payable set
forth on Schedule 5.10 have arisen in the ordinary course of business consistent
with past practice.


                                       20

<PAGE>



         5.11.  Title to the  Assets;  Absence of Liens and  Encumbrances,  Etc.
Except  as set  forth on  Schedule  5.11(a)  hereto:  (a) any one or more of the
Sellers has good and valid  title to, and owns  outright,  the Assets,  free and
clear  of all  mortgages,  claims,  liens,  charges,  leases,  subleases,  encum
brances,  security interests,  restrictions on use or transfer or other material
defects of any nature, whether or not recorded; and (b) the sale and delivery of
the Assets  pursuant  hereto will vest in the Purchaser  good and valid title to
the  Assets  free  and  clear  of  all  mortgages,   claims,   liens,   charges,
encumbrances,  leases,  subleases,  security  interests,  restrictions on use or
transfer,  or other  defects of any nature  except (i) as set forth on  Schedule
5.11(b) hereto,  (ii)  obligations  arising under the terms of the  Commitments,
(iii) those which would not impair the use and enjoyment of the property (and do
not require the payment of money),  (iv) liens for taxes not yet due and payable
and (v) claims which in the aggregate do not exceed $50,000.

         5.12.    Contracts.

                  5.12.1.  Attached  hereto as Schedule  5.12.1(a) are copies of
the standard form of End-User  Agreements,  including,  without limitation,  the
standard form of license agreement, standard form of software support agreement,
standard  form of  hardware  service  agreement  and  standard  form of purchase
agreement  for  each of the PMS  Software  products  and  related  hardware  and
services  (collectively,  the  "Standard  Agreements").  Except as  described on
Schedule 5.12.1(b) hereto,  none of the End-User  Agreements contain any term or
provision  which:  (i)  restricts  the  Sellers  from  assigning  its rights and
obligations  under such agreements;  (ii) requires any of the Sellers to deliver
the  source-code  for any  software  product  to any  third  party  (other  than
source-code escrow  arrangements);  (iii) requires any of the Sellers to provide
maintenance,  support or other  services to any End-User  free of charge for any
period of time  (other  than for a period not to exceed one year  following  the
installation of a system);  (iv) requires any of the Sellers to provide services
for more than a one year period;  (v) requires any of the Sellers to deliver any
material  modification to or materially enhanced  functionality for any software
product (other than updates and bug-fixes);  (vi) requires any of the Sellers to
deliver a new or next  generation  product (other than updates);  (vii) requires
any of the Sellers to provide future discounts or fixed rates on future hardware
and/or software purchase by the End-User (except to the extent such discounts or
rates  will not  result in costs to the  Purchaser  of  $250,000  or more in the
aggregate);  and (viii)  other than with the giving of due  notice,  prevents or
restricts  any of the Sellers  from  ceasing to provide  support for any product
after the end of the then current term of the End-User Agreement.

                  5.12.2.  Set forth on Schedule  5.12.2 is a true and  complete
list,  as of the date  hereof,  of all of the Reseller  Agreements.  Attached to
Schedule   5.12.2  are:  (i)  copies  of  PCN's  standard  form  of  independent
value-added  reseller  agreement for resellers of PCN's Health Network  practice
management software product;  and (ii) a representative  sample of VERSYSS' form
of  independent  value-added  reseller  agreement  for  resellers  of the  MENDS
practice management software product.

                  5.12.3.  Set forth on Schedule  5.12.3 is a true and  complete
list, as of the date hereof, of all Equipment Leases,  Commercial Agreements and
OEM Agreements.


                                       21

<PAGE>



                  5.12.4. Except as set forth on Schedule 5.12.4, except for the
End-User  Agreements,   the  Reseller  Agreements,  the  Equipment  Leases,  the
Commercial  Agreements,  the OEM Agreements,  the Real Property Leases,  the Web
Agreement, the Pre-Petition Loan, this Agreement and any other agreement between
any one or more of the Sellers,  on the one hand, and any one or more of Medical
Manager and its Affiliates on the other hand,  none of the Sellers is a party to
and none of the Assets is bound by any:

                  (a) lease of: (i) personal property  requiring payments by any
one or more of the Sellers of more than $25,000 on an annualized  basis; or (ii)
real property;

                  (b) license  agreement,  assignment  or  contract  (whether as
licensor or licensee, assignor or assignee) relating to trademarks, trade names,
patents or copyrights (or applications therefor),  software,  unpatented designs
or  processes,  formulae,  know-how or technical  assistance  or other  property
rights,  including  without  limitation,  the Intellectual  Property (other than
standard  licenses  of the  Business's  software  products  entered  into in the
ordinary course of business and licenses of off-the-shelf software products);

                  (c) employment,  consulting  agreement,  severance agreements,
other agreement with any employee of any one or more of the Sellers;

                  (d) agreement with any value-added reseller, business partner,
distributor,  dealer,  sales agent or representative with respect to the sale or
licensing of the Business' products or services;

                  (e) any original equipment manufacturing agreement;

                  (f) joint venture or partnership agreement;

                  (g) agreement for the borrowing or lending of money;

                  (h) agreement granting to any person a lien, security interest
or mortgage on any of the Assets, including,  without limitation,  any factoring
agreement or agreement for the assignment of accounts receivable or inventory;

                  (i) source-code escrow agreement;

                  (j) agreement  which  restricts any one or more of the Sellers
from conducting the Business anywhere in the world;

                  (k) claims clearing  agreement or electronic data  interchange
agreement;


                                       22

<PAGE>



                  (l) agreement  regarding any acquisition or disposition of any
assets used in the Business by any one or more of the Sellers  other than in the
ordinary course of business containing any currently operative provisions;

                  (m) currently  operative agreement regarding the settlement of
any litigation;

                  (n)  agreement  with any  Affiliate  of any one or more of the
Sellers;

                  (o) other Third Party Agreement not otherwise  described above
relating to the Assumed Liabilities  providing for payment by any one or more of
the Sellers of an amount in excess of $50,000 on an  annualized  basis and which
have a remaining term of one year or more; and

                  (p) other  agreements  entered  into  outside of the  ordinary
course of business providing for payment by any one or more of the Sellers of an
amount in excess of $25,000 on an  annualized  basis and which have a  remaining
term of one year or more.

                  Correct and complete copies of all such agreements, leases and
other instruments and written  amendments thereto (or, where they are oral, true
and complete written summaries  thereof) required to be shown on Schedule 5.12.4
(together with each End-User Agreement,  each Reseller Agreement, each Equipment
Lease,  each of the  Commercial  Agreements,  each OEM  Agreement  and each Real
Property  Lease,  such  agreements,  leases  and  instruments  are  collectively
referred to herein as the  "Commitments"),  have been provided or otherwise made
available to the Purchaser on or prior to the date hereof.

                  5.12.5. Except as set forth on Schedule 5.12.5(a) hereto, each
of the  Commitments  is valid,  in full force and effect and  enforceable by the
Seller  which is a party  thereto in  accordance  with its terms.  Except as set
forth on Schedule 5.12.5(b) hereto, all of the Commitments which are included in
the Assets or as part of the Assumed Liabilities are, or at the Closing will be,
whether as a result of the  application  of the provisions of Section 365 of the
Bankruptcy Code or otherwise, assignable by the Seller which is a party thereto,
as applicable, to the Purchaser without the consent of any other party thereto.

                  5.12.6.  Except as set forth on Schedule  5.12.6,  the Sellers
have fulfilled, or have taken all action reasonably necessary to have been taken
to date to enable  each of them to  fulfill  when due,  all of their  respective
obligations under the Commitments. Except as indicated on Schedule 5.12.6, there
has not occurred any default by any of the Sellers or any event which,  with the
giving of notice or the lapse of time or both, and/or the election of any person
other than the Sellers will become such a default by any of the Sellers, nor, to
the  knowledge  of the  Sellers,  has there  occurred  any  material or monetary
default by others or any event which, with the lapse of time and/or the election
of any of the Sellers,  will become such a default under any of the  Commitments
(including,  without limitation,  the End-User Agreements).  None of the Sellers
nor, to the best of Sellers' knowledge, any other party is in arrears in respect
of the performance or satisfaction of any non-monetary term

                                       23

<PAGE>



or condition  to be  performed or satisfied by it under any of the  Commitments,
and no waiver or indulgence  has been granted by any of the Sellers  thereunder.
None of the  Sellers  nor any  other  party  is in  arrears  in  respect  of the
performance or  satisfaction  of any monetary term or condition to be per formed
or satisfied by it under any of the Commitments, and no waiver or indulgence has
been granted by any of the Sellers thereunder.

         5.13.  End-Users.  Set forth on Schedule  5.13(a) is a true and correct
list, as of the date hereof,  of all End-Users who or which, as the case may be,
are parties to End User Agreements directly with one or more of the Sellers with
respect to Health  Network,  Mends and MDX (each as  defined in 5.14(b)  below);
provided,  however,  that the  representation  and  warranty  contained  in this
Section 5.13 shall not be deemed to constitute a representation or warranty that
any particular End User is currently using any particular PMS Software product.

         5.14.  Intellectual  Property;  Y2K  Compliance.  (a) Schedule  5.14(a)
hereto  sets forth a true and  correct  description  of all of the  Intellectual
Property  used in and  material to the  operation  of the  Business  (other than
off-the-shelf  software  products  that can be purchased  for $5,000 or less per
single  user  license).  The PMS  Software  does not  violate or infringe on the
rights of any other  person.  To the best  knowledge of the  Sellers,  the other
software  utilized  by the  Sellers in the  operation  of the  Business  neither
violates nor infringes on the rights of any other  person.  The Sellers have not
received  any notice of or alleging  any  violation  of the  asserted  rights of
others with respect to the Intellectual  Property.  The Sellers are not aware of
any third party that is infringing or violating any of the rights of the Sellers
with respect to the Intellectual Property. Except as provided for in the license
agreements referred to on Schedule 5.14(a) hereof, no royalties, license fees or
other  similar  payments are required for the  continued use by Purchaser of the
Intellectual  Property  used in and material to the  operation of the  Business.
None  of  the   Intellectual   Property  has  ever  been  declared   invalid  or
unenforceable.

                  (b) The Sellers have  developed or cause to be developed,  and
published:  (i)  updates  (each such update  being  referred to herein as a "Y2K
Update")  required to make the most recent non-Y2K  Compliant version of each of
the following PMS Software products distributed and supported by any one or more
of the Sellers Y2K Compliant (as defined below): (x) PCN Health Network ("Health
Network");  (y) MENDS  ("Mends");  and MDX  ("MDX");  and (ii) patches (the "Y2K
Patches") for the Sellers'  proprietary  operating  system programs and hardware
platforms identified on Schedule 5.14(b)(ii)  ("Operating  Software").  Schedule
5.14(b)(ii)  identifies the versions of each such PMS Software  product and each
such Operating Software product which is Y2K Compliant.

                  (c) Schedule 5.14(c) hereto  identifies,  with respect to each
End-User who or which, as the case may be, is, as of the date hereof, a party to
a currently  effective  software support agreement  directly with one or more of
the Sellers,  whether or not, as of the date specified on Schedule 5.14(c),  the
Sellers have either one or both of  distributed  and caused to be installed with
such End User a Y2K Update to the PMS Software used by such End User.


                                       24

<PAGE>



                       (d)  As  used  herein,   "Y2K  Compliant"  means  that  a
particular version of a software product: (i) will operate prior to, during, and
after  the  calendar  year  2000  A.D.,  both on a  stand-alone  basis  and when
interacting or inter-operating with third-party hardware, in a manner consistent
with the  software and systems  without  error and without  human  intervention,
other than original date entry; (ii) will accept,  process,  display, and report
all  century-based  data  consistently  and  accurately  to the extent  that the
third-party  hardware  and  software  used in  combination  with  that  software
properly exchanges date data, including  century-based,  data with it; and (iii)
that neither the occurrence of any date nor the change of century will adversely
affect the processing,  calculating, comparing, sequencing, or other use of data
by that software including, without limitation causing (x) any error relating to
or resulting from  century-based  data, (y) any abnormal  ending or provision of
invalid or incorrect results as a result of any century-based  data, and (z) any
error  relating  to  the  century  recognition  or  calculations   accommodating
century-based  data,  values or  formulae  to the  extent  that the  third-party
hardware and software used in combination with that software properly  exchanges
date data, including century-based data, with it.

                       (e) Prior to the date hereof, the Seller has delivered to
each  Reseller a software  disk  containing  the Y2K Updates and Y2K Patches for
each of the PMS Software products and Operating  Software products  supported by
such Resellers.

         5.15. Real Estate Leases.  (a) The leasehold  estates and Real Property
Leases  listed in Schedule  5.15(a)(i)  are all of the  leasehold  estates under
which,  as of the date hereof,  any of the Sellers are lessees or  sublessees of
any  real  property  or  interest  therein.  Except  as set  forth  on  Schedule
5.15(a)(ii),  none of the Sellers is a sublessor of any leasehold estate demised
to it under any Real Property Lease.

                       (b) Except as set forth on Schedule 5.15(b),  none of the
Sellers is in default or has received  any notice of any  default,  or failed to
take any action that could result in a default,  under the Real Property Leases.
To the  Sellers'  knowledge,  no other party to any such lease is in material or
monetary default thereunder.

         5.16.  Compliance  With  Laws.  Except  as set forth on  Schedule  5.16
hereto,  each  of the  Sellers  has  complied  and  is in  compliance  with  all
applicable laws and rules and regulations of foreign,  federal,  state and local
governments and all agencies thereof and other regulatory  bodies related to the
operation  of the Business or ownership of the Assets the failure to comply with
which has or  reasonable  would have an adverse  effect on the  Business  or the
Assets, and there are no pending claims which have been filed against any of the
Sellers or any of their respective  Affiliates (relating to the operation of the
Business or the ownership of the Assets) alleging a violation of any such law or
regulation.  No notice has been  received by any of the Sellers  with respect to
any such violation of any such legal requirements.

         5.17.  Litigation.  Except as set forth on Schedule 5.17 hereto,  there
are no claims,  actions,  suits,  proceedings,  arbitrations,  investigations or
hearings or notices of hearing  pending or, to the best knowledge of the Sellers
threatened, before any court or governmental or administrative

                                       25

<PAGE>



authority or private arbitration tribunal against or relating to either: (i) the
transactions  contemplated  hereby;  or (ii) any one or more of the Sellers with
respect to the Business or any of the Assets (including, without limitation, any
End-User Agreement).

         5.18.  Labor Matters.  (a) Schedule  5.18(a) hereto contains a true and
correct  schedule of: (i) the names,  job descriptions and current annual salary
rates of all present  employees of each of the Sellers (the  "Employees");  (ii)
the amount of severance payable to each such employee (assuming for such purpose
that  the  Closing  Date  was the date on which  such  person's  employment  was
terminated) (the "Severance Obligations"); (iii) the dollar value of all accrued
vacation  days of each  such  employee  as of the  date  specified  on  Schedule
5.18(a);  and (iv) the amount  and  description  of bonus or other  compensation
payable by any of the  Sellers to any such  employee  upon or as a result of the
occurrence of such employee  remaining  employed by any of the Sellers  beyond a
specified date (the "Stay-Put Bonuses").

                       (b) No employee of any of the Sellers is  represented  by
any union or  collective  bargaining  agent,  and, to the best  knowledge of the
Sellers,  there  has been no union  organizational  efforts  in  respect  of the
employees of the Seller.

                       (c) Except for the  agreement  between  PCN and Alvarez &
Marsal,  Inc. (the "AM Agreement") (which is a Retained Agreement and a Retained
Liability),  Schedule  5.18(c)  hereto  contains  a true  and  correct  list and
description  of all  agreements  between  PCN, on the one hand,  and each senior
executive of PCN, on the other hand,  regarding any bonus or other  compensation
payable  by PCN to any such  executive  upon or as a  result  of the sale of the
Business (the "Sale Bonuses").

         5.19. Taxes. Each of the Sellers has filed or obtained valid extensions
for the filing of all tax and  information  returns and reports  relating to the
Business and the Assets required to be filed, and all taxes,  fees,  assessments
or other governmental charges,  withholdings of any nature,  including franchise
taxes,  use and  occupancy  taxes and sales taxes,  have been paid (except those
being  contested in good faith),  or adequate  provision for the payment thereof
has been made and is provided  for on the  Financial  Statements  (to the extent
applicable  as of the  date of such  statements),  in each  case as of the  date
hereof, in all taxing  jurisdictions in which the conduct of the Business or the
ownership  of the  Assets  subjects  any  of the  Sellers  to any  taxes,  fees,
assessments or other governmental charges.

         5.20.  Entire  Business.  The  Assets  constitute  all  of  the  assets
reasonably  necessary to,  immediately  following the Closing Date,  operate the
Business  as  currently  conducted,  assuming  for  such  purposes  only,  that,
immediately  following the Closing Date, the Purchaser itself was to: (i) employ
all of the Employees (including  management personnel) currently employed by the
Sellers in connection with the Business  immediately  prior to the Closing Date;
and (ii) assume all of the liabilities with respect to all of the facilities and
all equipment  leases used in such facilities to the same extent  currently used
by the Sellers in the operation of the  Business.  No portion of the Business is
conducted by any person or entity other than the Sellers.

                                       26

<PAGE>



         5.21. Brokers.  Except as set forth on Schedule 5.21 hereto, no broker,
finder or investment banker is entitled to any brokerage,  finder's or other fee
or commission in connection with the transactions contemplated by this Agreement
based upon any arrangement made by or on behalf of the Sellers.

         5.22.  Employee  Benefit  Plans.  (a)  Except as set forth on  Schedule
5.22(a)  hereto,  none  of  the  Sellers  has  any  employee  benefit  plans  or
arrangements,  including but not limited to employee  pension  benefit plans, as
defined in Section 3(2) of the Employee  Retirement Income Security Act of 1974,
as amended ("ERISA"), multiemployer plans, as defined in Section 3(37) of ERISA,
employee  welfare benefit plans,  as defined in Section 3(1) of ERISA,  deferred
compensation  plans,  stock option plans,  bonus plans,  stock  purchase  plans,
hospitalization,  disability and other insurance plans, severance or termination
pay plans and policies,  whether or not  described in Section 3(3) of ERISA,  in
which any Employees,  their spouses or dependents participate ("Employee Benefit
Plans").

                  (b)  Controlled  Group  Liability.  Except  as  set  forth  on
Schedule 5.22(b),  none of the Sellers,  nor any entity that would be aggregated
with either under Code Section 414(b),  (c), (m) or (o): (i) has ever terminated
or withdrawn  from an employee  benefit plan under  circumstances  resulting (or
expected to result) in  liability  under Title IV of ERISA;  (ii) has any assets
subject to (or expected to be subject to) a lien for unpaid contributions to any
employee  benefit plan;  (iii) has failed to pay premiums to the Pension Benefit
Guaranty  Corporation  (the "PBGC") when due; (iv) is subject to (or expected to
be subject  to) an excise tax under Code  Section  4971;  (v) has engaged in any
transaction  which would give rise to  liability  under  Section 4069 or Section
4212(c) of ERISA; or (vi) has violated Code Section 4980B or Section 601 through
608 of ERISA or failed to  comply  with the  Health  Insurance  Portability  and
Accountability  Act of 1996  ("HIPAA")  with  respect to any group  health  plan
within  the  meaning  of  Section  5000(b)(1)  of the Code,  except for any such
violation or failure which would not result in any liability to the Purchaser or
Medical Manager.

                  (c) Other  Liabilities.  (i) Except for the Stay-put  Bonuses,
the Sale Bonuses and the obligations of PCN under the AM Agreement,  none of the
Sellers is under any  obligation to pay  separation,  severance,  termination or
similar  benefits  solely as a result of any  transaction  contemplated  by this
Agreement  or  solely  as a result of a  "change  of  control"  (as such term is
defined in Section 280G of the Code) and (ii) all required or discretionary  (in
accordance  with  historical  practices)  payments,   premiums,   contributions,
reimbursements,  or accruals  under the Employee  Benefit  Plans for all periods
ending prior to or as of the date hereof for the Employees have been paid or are
disclosed on Schedule 5.22(c).

                  (d)  Compliance.  Each  employee  benefit  plan  covering  any
Employee is in compliance  with all applicable laws and regulations and has been
operated  in  accordance  with its terms and  provisions,  except as to any such
noncompliance  or  operation  which  would not  result in any  liability  to the
Purchaser With respect to each employee benefit plan covering any Employee there
are no  actions,  claims or  disputes  pending by any third party and no audits,
proceedings, claims

                                       27

<PAGE>



or demands pending by any governmental authority which would result in any
liability to the Purchaser.


6.       REPRESENTATIONS AND WARRANTIES OF THE PURCHASER AND MEDICAL
MANAGER

                  The Purchaser and Medical Manager hereby represent and warrant
to each of the Sellers that the following are true and correct:

         6.1.   Organization,   Etc.  Medical  Manager  is  a  corporation  duly
organized,  validly existing and in good standing under the laws of the state of
Delaware. The Purchaser is a corporation duly organized, validly existing and in
good standing under the laws of the state of Delaware. The Purchaser is a direct
wholly owned  subsidiary of Medical  Manager.  Each of the Purchaser and Medical
Manager has all requisite  power and  authority to execute,  deliver and perform
this Agreement and to consummate the transactions  contemplated  hereby. Each of
the  Purchaser  and Medical  Manager is authorized or licensed to do business in
each  jurisdiction  in which the  character  and  location  of its assets or the
nature of its business makes such qualification necessary,  except to the extent
that  the  failure  to so  qualify  would  not  have an  adverse  effect  on the
Purchaser,  Medical Manager or, following the Closing, the Business. Each of the
Purchaser and Medical  Manager has all requisite power and authority to execute,
deliver  and  perform  this  Agreement  and  to  consummate   the   transactions
contemplated hereby and has all requisite power and authority, licenses, permits
and  franchises  to own or lease and  operate  its  properties  and carry on its
business as it is presently being conducted.

         6.2.   Authorization   of  Agreement.   The  execution,   delivery  and
performance of this  Agreement and the Ancillary  Documents by the Purchaser and
Medical Manager and the consummation of the transactions contemplated hereby and
thereby,  have been  duly and  validly  authorized  by all  necessary  corporate
action,  including approval by the Purchaser's and Medical Manager's  respective
Boards of Directors.  This  Agreement has been and, when executed by one or both
of the Purchaser and Medical Manager,  as applicable,  the applicable  Ancillary
Documents  will  be duly  and  validly  executed  and  delivered  by each of the
Purchaser and Medical Manager.  This Agreement constitutes and, when executed by
the Purchaser and Medical Manager,  to the extent they are parties thereto,  the
applicable  Ancillary Documents will constitute valid and binding obligations of
each of the Purchaser and Medical  Manager,  each enforceable in accordance with
its terms.

         6.3. Effect of Agreement, Etc. The execution,  delivery and performance
of this Agreement by each of the Purchaser and Medical Manager and  consummation
by each of the Purchaser and Medical  Manager of the  transactions  contemplated
hereby, will not, with or without the giving of notice and the lapse of time, or
both: (a) violate any provision of law, statute,  rule,  regulation or executive
order to which  either  one or both of the  Purchaser  and  Medical  Manager  is
subject;  (b) violate any judgment,  order, writ or decree of any court to which
either one or both of the Purchaser and Medical  Manager is subject;  (c) result
in the breach or conflict with any term,

                                       28

<PAGE>



covenant,  condition or provision,  result in or permit any other party to cause
the  modifications or terminations of,  constitute a default under, or result in
the creation or imposition of any lien, security interest, charge or encumbrance
upon  any of  the  Purchaser's  or  Medical  Manager's  assets  pursuant  to any
partnership  agreement,  corporate  charter  or  by-laws,  or  any  commitments,
contract or other  agreement  or  instrument  to which either one or both of the
Purchaser and Medical Manager is bound.

         6.4.  Governmental  and Other Consents.  Except for compliance with the
provisions of HSR and the Securities  Exchange Act of 1934, as amended,  and the
rules and regulations  thereunder or as specifically  contemplated  elsewhere in
this  Agreement,  and except those  consents the failure of which to obtain will
not prohibit or delay the consummation of the transactions  contemplated by this
Agreement,  no consent,  authorization or approval of, or exemption by or filing
with, any govern mental, public or self-regulatory body or authority is required
in  connection  with the  execution,  delivery  and  performance  by either  the
Purchaser  or Medical  Manager of this  Agreement or any of the  instruments  or
agreements herein referred to, or the taking of any action herein contemplated.

         6.5.  Restrictions;  Burdensome  Agreements.  Neither the Purchaser nor
Medical  Manager is a party to any contract,  commitment  or  agreement,  nor is
either one or both of the Purchaser and Medical Manager subject to, or bound by,
any order, judgment, decree, law, statute,  ordinance, rule, regulation or other
restriction of any kind or character,  which would prevent either one or both of
the  Purchaser and Medical  Manager from  entering  into this  Agreement or from
consummating the transactions contemplated by this Agreement as it is written.

         6.6.  Litigation.  As of the date  hereof,  except as  described in the
Medical  Manager SEC  Documents  (as defined in Section 6.8 below)  there are no
claims, actions, suits, proceedings, arbitrations, investigations or hearings or
notices of  hearings  pending or, to the best  knowledge  of the  Purchaser  and
Medical  Manager,  threatened  against the Purchaser,  Medical Manager or any of
their Affiliates,  before any court or governmental or administrative  authority
or private arbitration tribunal relating to the transaction  contemplated hereby
or which could have a material adverse effect on the  transactions  contemplated
hereby.

         6.7.  Issuance of Medical Manager Stock.  All shares of Medical Manager
Stock which are to be issued as part of the Stock  Payment  will be, when issued
in  accordance  with  the  terms  hereof,   validly   issued,   fully  paid  and
non-assessable and not subject to preemptive rights.

         6.8. SEC Documents; Financial Statements. (a) Medical Manager has filed
all forms,  reports and documents  required to be filed by Medical  Manager with
the SEC, including,  without limitation,  its Annual Report on Form 10-K for the
fiscal year ended June 30, 1999 (the  "Medical  Manager  10-K"),  its  Quarterly
Report on Form 10-Q for the  period  ending  September  30,  1999 (the  "Medical
Manager 10-Q") and any Current Reports on Form 8-K filed by Medical Manager with
the SEC since September 30, 1999 (the "Medical Manager 8-Ks" and,  together with
the Medical  Manager 10-K, the Medical  Manager 10-Q and any other form,  report
and document  required to be filed by Medical Manager with the SEC, the "Medical
Manager SEC Documents").  As of their respective  dates: (i) the Medical Manager
SEC Documents complied in all material respects with

                                       29

<PAGE>



the  requirements  of the  Securities Act or the Exchange Act, and the rules and
regulations  of the SEC  thereunder  applicable  to  such  Medical  Manager  SEC
Documents;  and (ii) none of the Medical  Manager 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.

                  (b) The financial  statements of Medical  Manager  included in
the Medical Manager SEC Documents  complied as to form in all material  respects
with the published rules and regulations of the SEC with respect  thereto,  were
prepared in accordance with generally accepted  accounting  principles  ("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 Rule 10-01 of Regulation  S-X of the SEC) and fairly present in all
material  respects in accordance with applicable  requirements of GAAP (subject,
in the case of the unaudited statements, to normal, recurring audit adjustments)
the  consolidated  financial  position of Medical  Manager and its  consolidated
subsidiaries  as at their  respective  dates  and the  consolidated  results  of
operations and the  consolidated  cash flows of Medical  Manager for the periods
then ended.

         6.9.  Absence of Certain Changes or Events.  Since June 30, 1999 to the
date hereof (except as disclosed in the Medical Manager SEC Documents) there has
not been any material  adverse  change in the business,  results of  operations,
properties (including  intangible  properties),  financial condition,  assets or
liabilities of Medical Manager and its subsidiaries taken as a whole.

         6.10.  Brokers.  No broker,  finder or investment banker is entitled to
any  brokerage,  finder's  or other fee or  commission  in  connection  with the
transactions  contemplated by this Agreement based upon any arrangement  made by
and on behalf of the Purchaser or Medical Manager.


7.       BANKRUPTCY PROCEEDINGS

         7.1. Each of Medical Manager, the Purchaser and the Sellers agrees that
the Closing shall occur as part of a proceeding  under the  Bankruptcy  Code. In
that regard, the Sellers will cause the following to occur:

                       (a) Chapter 11 Case.  The Sellers will file petitions for
relief  (together,  the  "Petition")  under Chapter 11 of the Bankruptcy Code no
later than the close of business on the  business day next  succeeding  the date
hereof.

                       (b)  Chapter 11 Plan.  The  Sellers  will file a proposed
plan (the  "Plan")  containing  such  terms  with  respect  to the  transactions
contemplated  hereby  as are  substantially  similar  to those  provided  for in
Exhibit 7.1(b)(i) hereto and a disclosure statement (the "Disclosure Statement")
describing the terms of this Agreement and the transactions  contemplated hereby
in a manner  substantially  similar to those provided for in Exhibit  7.1(b)(ii)
hereto with the Bankruptcy Court (the "Bankruptcy Court") contemporaneously with
the filing of the Petition. The Sellers,

                                       30

<PAGE>



Medical  Manager  and the  Purchaser  each agree to  cooperate  with one another
regarding the  preparation of any required  amendments or  modifications  to the
Plan or the Disclosure Statement,  including, without limitation, any disclosure
regarding Medical Manager, the Purchaser and the Medical Manager Stock. The Plan
will provide for,  inter alia,  the sale of the Assets to and the  assumption of
the Assumed  Liabilities  by the  Purchaser as provided for and pursuant to this
Agreement. Without limiting the foregoing, the Plan shall make provision for and
provide the  mechanism for the  assumption by the Sellers and the  assignment to
the  Purchaser  of all  unexpired  leases and  executory  contracts,  including,
without  limitation,  licenses and End User  Agreements,  as are required by and
selected by the Purchaser in its sole discretion; provided that, with respect to
any leases and contracts not so assumed,  all liability or damages  arising from
the  rejection  of  Unexpired  Leases  (as  hereinafter  defined)  or  Executory
Contracts (as hereinafter defined) shall constitute Assumed Liabilities. As used
herein,  (x)  "Unexpired  Leases"  means  unexpired  leases not  required by and
selected by the Purchaser,  as  aforementioned;  and (y)  "Executory  Contracts"
means  executory  contracts  not required by and selected by the  Purchaser,  as
aforementioned.

                       (c)  Scheduling  Order and  Related  Matters.  As soon as
practicable  after the  filing  of the Plan and the  Disclosure  Statement,  the
Sellers  will move for an order (the  "Scheduling  Order")  from the  Bankruptcy
Court:  (i) granting  provisional  approval of the  Disclosure  Statement;  (ii)
authorizing the Sellers to solicit acceptances of the Plan from impaired classes
of claims and interests;  (iii) scheduling a combined hearing on confirmation of
the Plan and final  approval  of the  Disclosure  Statement  (the  "Confirmation
Hearing");  (iv) approving the Assumption and Assignment  Procedures (as defined
Section  7.1(d)  below);  and (v)  approving the form and scope of notice of the
foregoing. The Sellers will seek to schedule the Confirmation Hearing for a date
approximately ninety days after the filing of the Petition.  Further, as soon as
reasonably  practicable  after  the  filing  of  the  Plan  and  the  Disclosure
Statement,  the Sellers  shall move for orders from the  Bankruptcy  Court:  (w)
approving  the  assumption  by PCN of  the  Web  Agreement;  (x)  approving  the
provisions  regarding  the payment of the Break-Up Fee contained in Section 12.2
(c)  below;  (y)  approving  the  provisions  of  Section12.2(b)  below  and (z)
authorizing the Sellers to enter into the Services Agreement (as defined below).

                       (d) Assumption and Assignment  Procedures.  In connection
with the  assumption  by,  and  assignment  to,  the  Purchaser  of the End User
Agreements and the Reseller Agreements pursuant to the Plan, the Sellers will be
required to: (i) cure,  or provide  adequate  assurance  that they will promptly
cure, any defaults;  (ii) compensate,  or provide  adequate  assurance that they
will promptly  compensate,  for any actual  pecuniary  loss  resulting from such
default;  and (iii) provide adequate  assurance of future performance under such
agreements.  In connection with the foregoing, the Sellers will seek approval of
the following procedures (the "Assumption and Assignment Procedures"):

                        (x)   The Sellers will give written notice (the
                              "Assumption and Assignment Notice") of all
                              defaults under End User Agreements and Reseller
                              Agreements including the proposed cure amounts and
                              compensation amounts, to all known End Users and
                              Resellers.  Such

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<PAGE>



                              notice will contain a detailed  description of the
                              Company's  past or  current  Y2K  Obligations  (as
                              defined below) and defaults thereof,  if any. Such
                              notice will also include a detailed description of
                              the   limited   obligations   undertaken   by  the
                              Purchaser in accordance  with Section 10.4 hereof.
                              In  addition,  the  Sellers  will  give  notice by
                              publication as approved by the Bankruptcy Court;

                        (y)   The  notice  referred  to in clause  (x) above
                              will  provide  that  all  parties  will be  bound,
                              barred  and  estopped  by  the  provisions  of the
                              Assumption  and  Assignment  Notices,   including,
                              without   limitation,   the   description  of  Y2K
                              Obligations,  unless an  objection is timely filed
                              with the  Bankruptcy  Court  and  served  upon the
                              Sellers; and

                        (z)   At the Confirmation  Hearing, PCN will obtain,
                              as part of the Confirmation Order, a determination
                              of the Bankruptcy Court that the Purchaser has not
                              assumed and shall have no  responsibility  for any
                              Y2K Obligations  except as  specifically  provided
                              for  in   Section   10.4.   In   support  of  such
                              determination,  the Sellers  will  introduce  such
                              evidence   into  the   record  as  is   reasonably
                              necessary  to support  such  findings  of fact and
                              conclusions of law.

                  As used herein, "Y2K Obligations" shall mean any Claims by any
customer,  End User or  reseller  against  any one or more of the Sellers to the
extent the subject  matter of those  Claims  involves the failure of any product
published, sold or distributed by the Sellers to be Y2K Compliant (as defined in
Section 5.14(d) hereof).

                  (e) As used herein,  the  "Services  Agreement"  shall mean an
agreement to be entered by the Purchaser and the Sellers  pursuant to which: (i)
the Sellers  shall be entitled to request that the Purchaser  make  available to
the Sellers the skills and expertise of its  personnel  related to the operation
of the Business and otherwise  aid the Sellers in connection  with the operation
of the Business prior to the Closing Date; and (ii) the Purchaser agrees to make
such services available to the Sellers. The Purchaser and the Sellers agree that
(x)  subject  to  the  Sellers  obtaining  an  order  of  the  Bankruptcy  Court
authorizing the Sellers to enter into the Services Agreement,  the Purchaser and
the  Sellers  shall  enter into the  Services  Agreement  as soon as  reasonably
practicable following the date hereof and (y) the Services Agreement shall be in
form and substance reasonably satisfactory to the Purchaser and the Sellers.

8.       PRE-CLOSING COVENANTS OF THE SELLERS

         8.1. Conduct of Business of the Company Pending the Closing. During the
period from the date of this  Agreement to the Closing,  the Sellers  agree that
(except (x) as contemplated or expressly permitted by this Agreement, including,
without  limitation,  the filing of the  Petition as  contemplated  by Article 7
hereto; (y) any actions reasonably taken by any one or more of the Sellers

                                       32

<PAGE>



in connection  with the bankruptcy  cases  contemplated by Section 7.1 hereto or
(z) to the extent that Medical Manager shall otherwise consent in writing (which
consent Medical Manager will not unreasonably withhold or delay)):

                  (a) The  Business  shall  be  conducted  only in the  ordinary
course of business and in a manner  consistent  with past practice  (since March
1998).

                  (b) The  Sellers  shall,  except  in the  ordinary  course  of
business  consistent  with past practice since March 1998, use their  reasonable
commercial  efforts to: (i) preserve intact the Sellers' business  organization;
(ii) except as provided for in Section 9.6 hereof,  keep  available the services
of its present  officers,  employees  and  consultants;  and (iii)  preserve its
present relationships with End Users, other customers,  Resellers, suppliers and
other persons with which it has a significant business relationship.

                  (c) The  Sellers  shall not make any capital  expenditures  or
material  dispositions  of the Sellers'  equipment or other assets  (tangible or
intangible)  or  otherwise  enter into any  transaction  outside of the ordinary
course of business, other than as described in Schedule 8.1(c) hereto.

                  (d) The  Sellers  shall not  acquire  or 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 business
or any corporation,  partnership,  association or other business organization or
division thereof or otherwise acquire or agree to acquire any material amount of
assets other than in the ordinary course of business.

                  (e) The Sellers shall not sell,  lease,  encumber or otherwise
dispose  of, or agree to sell,  lease  (whether  such lease is an  operating  or
capital  lease),  encumber  or  otherwise  dispose of any portion of the Assets,
other than in the ordinary course consistent with past practice.

                  (f) None of the  Sellers  shall,  except  as  provided  for in
Section 9.6 hereof:  (i) except to the extent  required by applicable  law or as
required by the terms of any currently effective employment agreement,  increase
or agree to increase the compensation  (whether cash or non-cash)  payable or to
become payable to their officers or employees, except for increases in salary or
wages  of  employees,   other  than  officers  who  are  currently  paid  annual
compensation in excess of $125,000,  of any one or more of the Sellers  (whether
in such  capacity or otherwise)  in  accordance  with past  practices and not to
exceed  5%  on  an  annual  basis;  (ii)  increase  or  agree  to  increase  the
compensation payable or to become payable to any executive officer of any of the
Sellers who currently receives annual compensation in excess of $125,000;  (iii)
grant any  severance  or  termination  pay to, or enter into any  employment  or
severance agreement with any executive officer, director, or employees of any of
the  Sellers;  (iv)  enter  into any  collective  bargaining  agreement;  or (v)
establish,  adopt,  enter into or amend any Benefit Plan or any of the following
plans, trusts, funds, policies or arrangements for the benefit of any directors,
officers or employees:  any bonus, profit sharing, thrift,  compensation,  stock
option, restricted stock, pension, retirement, deferred

                                       33

<PAGE>



compensation,  employment,  termination,  severance or other plan, trust,  fund,
policy or arrangement for the benefit of any directors, officers or employees.

                  (g)  The  Sellers  shall  account  for  all  transactions  and
business  of the  Sellers in  accordance  with GAAP,  consistently  applied  and
consistent with the Audited Statements.

                  (h) Except to the extent contemplated by the Plan, required by
the  Bankruptcy  Code or otherwise  specifically  authorized  by the  Bankruptcy
Court,  use its  reasonable  business  efforts  to:  (i)  collect  the  Accounts
Receivable in the ordinary  course  consistent  with past  practice  (including,
without limitation,  as to manner and timing of such collections);  and (ii) pay
or compromise the Accounts Payable arising after the filing of the Petition with
the  Bankruptcy  Court in the  ordinary  course  consistent  with past  practice
(including,  without limitation, as to the manner and timing of such payments or
compromise);

                  (i) The Sellers will promptly  notify  Medical  Manager in the
event that any of them fails to operate  its  business in  accordance  with this
Section 8.1.

                  (j)   Notwithstanding   anything  in  this  Agreement  to  the
contrary, between the date of this Agreement and the Closing, PCN agree that, to
the fullest  extent  permitted by  applicable  law PCN shall use all  reasonable
business  efforts to advise a designated  representative  of Medical Manager and
the Purchaser of any matter of material significance to the Business as promptly
as  practicable  and,  to  the  extent  reasonably   practicable,   permit  such
representative   to  provide  input  and  suggestions  in  connection  with  the
deliberation and the decision-making with respect thereto.

         8.2. Access to Information. From the date hereof to the Effective Time,
the  Sellers  shall  afford to  Medical  Manager  and its  officers,  employees,
accountants,  counsel and other representatives,  access at all reasonable times
to  its  officers,   employees,  agents,  properties,   offices,  plants,  other
facilities  and to all books and records , and shall furnish to Medical  Manager
all  financial,  operating  and other data and  information  as Medical  Manager
through its officers, employees or agents, may reasonably request.

         8.3. Y2K Updates and Patches.  (a) Without limiting anything  contained
in Section 7.1 above,  through and  including the Closing Date the Sellers shall
use all  reasonable  commercial  efforts to, as  applicable:  (i) distribute the
applicable  Y2K Updates  and Y2K  Patches to each End User who or which,  as the
case may be, is a party to a currently  effective  license agreement with one or
more of the Sellers  for Health  Network,  Mends or MDX (each such End User,  an
"Eligible End User");  (ii) cause the  applicable Y2K Updates and Y2K Patches to
be  installed at each  Eligible End User who or which,  as the case may be, is a
party to a currently  effective  software support agreement directly with one or
more of the Sellers with respect to Health  Network or Mends (each such Eligible
End User being referred to herein as a "Direct End User");  and (iii) distribute
the  appropriate Y2K Updates and Y2K Patches to those Resellers who or which, as
the case may be,  constitute  Resellers  of any one or more of  Health  Network,
Mends and MDX ("Eligible Resellers").

                                       34

<PAGE>



                  (b) Without limiting anything  contained in Section 7.1 above,
through and including the Closing Date, to the extent that any Year 2000 "patch"
or other update has been  developed or is otherwise  made available by any third
party  publisher  or  manufacturer  of  operating  system  software  or computer
hardware  provided by any of the Sellers to any End Users or by Resellers to any
End  Users  (but  only  if  so  provided  in  connection  with  that  Reseller's
distribution of PMS Software), the Sellers shall use their reasonable commercial
efforts to, as applicable:  (i) distribute such update or patch to each Eligible
End User who or which, as the case may be, uses the operating system or hardware
to which such update or patch relates,  and to each Eligible Reseller;  and (ii)
distribute  such  update  or patch  to,  and  cause  such  update or patch to be
installed  at each  Direct End User who or which,  as the case may be,  uses the
operating system or hardware to which such update or patch relates.


9.       PRE-CLOSING COVENANTS OF THE PURCHASER, MEDICAL MANAGER  AND
THE SELLERS

         9.1. Advice of Changes;  Governmental  Filings. Each party shall confer
on a regular and frequent basis with the other,  report on  operational  matters
regarding the Business and the  transactions  contemplated by this Agreement and
promptly  advise the other orally and in writing of any event which occurs after
the date  hereof  that  would  under this  Agreement  have been  required  to be
disclosed on the date of the execution  and delivery of this  Agreement had such
event occurred on or prior to the date hereof or would have resulted in a breach
of any representation, warranty, covenant or agreement contained herein.

         9.2. No Action.  Except as  contemplated  by this  Agreement,  no party
hereto will take or agree or commit to take any action that is reasonably likely
to make any of its  representations  or warranties  hereunder  inaccurate in any
material  respect  at the date  made (to the  extent  so  limited)  or as of the
Closing Date.

         9.3. Legal Conditions to Closing. Each of the Seller, the Purchaser and
Medical  Manager will take all reasonable  actions  necessary to comply promptly
with all legal  requirements  which may be imposed on itself with respect to the
Closing (including (x) furnishing all information  required under the HSR and in
connection  with  approvals  of or  filings  with  any  governmental  agency  or
authority  and  (y) in the  case  of the  Sellers,  to the  extent  required  by
applicable  law,  providing  any  notices  required  to be  delivered  to  their
employees under the Worker Adjustment Relocation  Notification Act ("WARN")) and
will promptly cooperate with and furnish information to each other in connection
with any such  requirements  imposed  upon  any of them in  connection  with the
Closing.

         9.4. Additional  Agreements;  Reasonable Efforts.  Subject to the terms
and conditions of this  Agreement,  each of the parties hereto agrees to use all
reasonable  commercial  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   laws  and   regulations   to  consummate  and  make  effective  the
transactions  contemplated by this  Agreement,  including,  without  limitation,
using its reasonable commercial

                                       35

<PAGE>



efforts to obtain all necessary waivers, consents and approvals and to cause the
conditions  set forth in  Section  11  hereto to be  satisfied  as  promptly  as
practicable. Without limiting the foregoing, the parties hereto will execute and
deliver,  or  cause  to be  executed  and  delivered,  all  such  documents  and
instruments,  in addition to those  specifically  required by the  provisions of
this  Agreement,  in form and substance  reasonably  satisfactory to the parties
hereto,  as may be reasonably  necessary or desirable to carry out and implement
the provisions of this Agreement.

         9.5.  Confidentiality.   With  respect  to  information  that  is  made
available by: (i) the Sellers or any of their Affiliates pursuant to Section 8.3
hereof;  (ii)  the  Sellers  or any of  their  Affiliates  to any one or more of
Medical  Manager,  the  Purchaser  or any of their  Affiliates  pursuant to this
Agreement to any other  provision of this Agreement;  or (iii) Medical  Manager,
the  Purchaser or any of their  Affiliates  to any one or more of the Sellers or
any of  their  Affiliates  pursuant  to any  provision  of this  Agreement,  the
receiving party shall comply with, and shall cause its representatives to comply
with,   the   provisions   relating   to   confidentiality   contained   in  the
Confidentiality  Agreement (the "Confidentiality  Agreement") dated February 11,
1999 between PCN and Medical Manager.

         9.6.  Employee  Matters.  (a) As promptly as practicable  following the
date  hereof,  the  Purchaser  shall use its  reasonable  commercial  efforts to
determine  and  identify to PCN which  employees  of the  Sellers,  if any,  the
Purchaser  does  not wish to  employ  from  and  after  the  Closing  Date  (the
"Designated  Employees").  Anything  contained in this Agreement to the contrary
notwithstanding,  following  the  identification  by the Purchaser to PCN of any
Designated  Employees,  the Sellers may, in their sole and absolute  discretion,
terminate the employment of any one or more of the Designated Employees prior to
the Closing  Date and incur a Severance  Obligation  (as defined in Section 5.18
above) as a result  thereof  (a  "Designated  Employee  Severance  Obligation");
provided, however, to the extent that any Designated Employee is, as of the date
hereof,  eligible to receive a Sale Bonus (as defined in Section  5.18  hereof),
the Designated  Employee  Severance  Obligation  with respect to such Designated
Employee shall be deemed to be the severance  obligation of PCN set forth in the
agreement between PCN and such Designated  Employee  establishing the terms upon
which the Sale Bonus will be paid to any such Designated Employee.

                  (b) As promptly as practicable  following the date hereof, the
Purchaser  and PCN shall seek to  establish  and  implement a bonus or incentive
plan  pursuant  to which  certain  employees  of the Sellers  identified  by the
Purchaser and PCN will receive bonuses (the "Medical Manager Retention Bonuses")
in the event that such employees  remain in the Sellers'  and/or the Purchaser's
employ for a specified period of time following the date hereof.

         9.7.  Solion  Assets.  Each of the parties  hereto  acknowledges  that,
except to the extent (x)  ordered by the  Bankruptcy  Court or another  court of
competent  jurisdiction or (y) the Order of Preliminary  Injunction described on
Schedule  5.4 hereto is vacated or is otherwise  no longer  applicable,  nothing
contained in this  Agreement is intended to encumber or otherwise  constitute an
encumbrance upon any of the equipment or other physical  property located in the
Commonwealth  of  Massachusetts  and  used  by PCN as part  of or  primarily  in
connection with the operation of PCN's

                                       36

<PAGE>



"Solion Division". The foregoing shall in no way limit or modify the Purchaser's
right to acquire all of the Sellers' assets (other than the Retained  Assets) at
the Closing (the  acquisition of which being a condition to the Closing),  which
right may be waived by the Purchaser, in its sole discretion, at the Closing.

         9.8.  Medical  Manager SEC Documents.  From the date hereof through the
Closing  Date,  Medical  Manager  shall,  promptly  after the  filing by Medical
Manager of such  document  with the SEC,  deliver  to PCN copies of any  Medical
Manager SEC Document filed by Medical Manager with the SEC.

         9.9. Subsequent Financial Statements and Related Matters. To the extent
reasonably  determined  by  Medical  Manager's  legal  counsel  and  independent
accountants to be required to be included in, or incorporated by reference into,
any filing to be made by Medical  Manager  under or pursuant to Section 5 of the
1933 Act, PCN shall use all reasonable efforts to:

                  (a) as soon as practicable but in no event later than the 40th
day following the end of each fiscal quarter  between the date of this Agreement
and the Closing, if the Closing has not yet occurred, deliver to Medical Manager
financial  statements for the Business that comply in all material respects with
the rules of the SEC applicable to financial  statements required to be included
in a Quarterly  Report on Form 10-Q for such  quarter (the  "Subsequent  Interim
Financial Statement");

                  (b) as soon as  practicable  but in no event  later than March
25,  2000,  if the  Closing  has not yet  occurred,  deliver to Medical  Manager
audited  financial  statements  for the Business for the year ended December 31,
1999 that comply in all material  respects with the rules of the SEC  applicable
to financial statements required to be included in an Annual Report on Form 10-K
for such  fiscal  year  (the  "Subsequent  Audited  Financial  Statements"  and,
together with the  Subsequent  Interim  Financial  Statements,  the  "Subsequent
Financial  Statements");  provided,  however,  that, in the event that after the
date hereof (x) Medical Manager has filed a registration  statement with the SEC
under  the  1933  Act and (y)  Medical  Manager  is  reasonably  advised  by its
independent  accountants  that, in order for such  registration  statement to be
declared effective by the SEC, the Subsequent  Audited Financial  Statement must
be included in, or incorporated by reference into, such registration  statement,
PCN shall, following written notice by Medical Manager of the occurrence of such
events,  use all reasonable  efforts to deliver the Subsequent Audited Financial
Statements to Medical  Manager  within ten (10) days following the date on which
PCN receives  such notice from Medical  Manager  (but,  in no event shall PCN be
required to deliver such  Subsequent  Audited  Financial  Statements  to Medical
Manager prior to March 3, 2000).

                  (c) provide,  and to use its  reasonable  business  efforts to
cause the Sellers' accountants to provide,  promptly and from time to time, such
certifications and consents regarding financial  information of the Business for
any period prior to the Closing Date as Medical  Manager and its accountants may
reasonably  consider  necessary in  connection  with any filings or reports that
Medical  Manager  is  required  to file with the SEC or any  other  governmental
authority, whether as

                                       37

<PAGE>



a result of the transaction  contemplated  hereby,  an issuance of securities or
Medical Manager's periodic reporting  obligations under the Securities  Exchange
Act of 1934, as amended.  Each request for a  certification  or consent shall be
made no less than 15 days prior to the date such  certificate or consent must be
delivered to Medial  Manager.  In addition,  the Sellers  shall  cooperate  with
Medical Manager and its  accountants,  and shall use their  reasonable  business
efforts to cause their  accountants  to cooperate  with Medical  Manager and its
accountants,  in  connection  with the  preparation  of financial  statements of
Medical Manager to be included in any such filings or reports.


10.      POST-CLOSING COVENANTS

         10.1.  Further  Assurances.  The  Sellers,  on the  one  hand,  and the
Purchaser and Medical  Manager,  on the other hand, at the request of the other,
at or after the Closing,  will execute and deliver,  or cause to be executed and
delivered,  to the other such  documents and  instruments,  in addition to those
specifically required by the provisions of this Agreement, in form and substance
reasonably  satisfactory  to  the  other,  as may  reasonably  be  necessary  or
desirable to carry out or implement any provision of this Agreement.

         10.2.  Employee  Matters.  (a) The Purchaser and Medical  Manager agree
that, on the Closing Date,  either Medical  Manager or the Purchaser shall offer
employment to all of the Employees who the Purchaser or Medical  Manager wish to
employ. Without limiting the foregoing, the Purchaser or Medical Manager, as the
case may be,  agrees to credit  to any  Employee  who  becomes  employed  by the
Purchaser or Medical  Manager,  as  applicable,  following  the Closing Date all
unused  vacation  time such  Employee  has  accrued  with the  Sellers as of the
Closing Date as set forth on Schedule 5.18(a),  for the benefit of such Employee
subject to and in accordance with the Purchaser's and Medical Manager's vacation
policy in effect from time to time.  Except as provided in the three immediately
preceding  sentences,  nothing  contained  in this Section 10.2 shall in any way
limit the  Purchaser's  and Medical  Manager's  right or ability to, in its sole
discretion, deal with any such employee in any manner it determines,  including,
without limitation, the right to terminate or sever any such employee, change or
alter  the  nature  of the  Business,  or  change  or alter  the  organizational
structure of the Business.  Nothing  contained in this Section 10.2 shall in any
way limit or modify  the  Purchaser's  agreement  to assume  any of the  Assumed
Liabilities,  including,  without  limitation,  the  obligation  to satisfy  the
Severance Obligations with respect to any Employee who is not offered employment
with the Purchaser or Medical  Manager on the Closing Date and whose  employment
with the Sellers is terminated on or following the Closing Date.

                  (b) On the Closing Date, contemporaneously with the payment by
the payment by the Purchaser to the Sellers of the Purchase Price, the Purchaser
shall  also  pay to the  Sellers  an  amount  equal  to the sum of (the  "Agreed
Reimbursement Amount"):

                           (i) the amount of all  obligations of any one or more
of the  Sellers to any one or more of its  employees  with  respect  to: (A) any
Severance  Obligations  set forth on Schedule  5.18(a)  actually  payable by the
Sellers arising as a result of (x) the failure of the Purchaser to,

                                       38

<PAGE>



contemporaneously  with the Closing, offer to any employee of any one or more of
the Sellers  employment  with the  Purchaser or one of its  Affiliates  on terms
substantially  comparable to those of each such  employee's  current  employment
with the Sellers or (y) the  termination  of the  employment  of any  Designated
Employee (as provided for in Section 9.6 hereof)  whether or not the  Designated
Employee  Severance  Obligation  (as defined in Section  9.6  hereof)  resulting
therefrom is paid by the Sellers prior to the Closing Date; (B) the  obligations
of any one or more of the Sellers to pay any  Stay-Put  Bonuses  (other than any
Sale  Bonuses  (as  defined  in Section  5.18 )) (which  obligation  shall,  for
purposes of the  preparation  of the Closing  Date Net Worth  Statement  and the
calculations  required to be made in accordance with Section 2.3 hereof only, be
deemed to constitute an Assumed  Liability);  and (C) Medical Manager  Retention
Bonuses (as defined in Section 9.6(b) hereof); and

                           (ii) the  amount of all  obligations  of the  Sellers
existing  on the  Closing  Date to make any  matching  contributions  to the PCN
401(k) Plan; provided,  however, that such obligation shall, for purposes of the
preparation  of the  Closing  Date  Net  Worth  Statement  and the  calculations
required to be made in  accordance  with Section 2.3 hereof  only,  be deemed to
constitute an Assumed Liability.

         10.3. Maintenance of Records;  Assistance. (a) The Purchaser shall keep
and  maintain  all  documents  and  records  relating  to any one or more of the
Business,  the Assets and the Assumed Liabilities for a period of five (5) years
after  the  Closing  Date.  Upon  request  made by PCN or its  successor  to the
Purchaser  after the Closing Date,  the Purchaser  shall make such documents and
records  available to PCN or its successor for inspection and copying,  at PCN's
expense, during regular business hours, in order to permit the Sellers to:

                          (i)      administer  the  claims  procedure  and
                                   post-confirmation  items in  connection
                                   with  the  Sellers'   Bankruptcy   case
                                   contemplated by Section 7 hereof;

                          (ii)     prepare  for,  dispute  or  respond  to, any
                                   litigation,  action,  claim  or  proceeding,
                                   including,  without  limitation,  audits  in
                                   connection with tax returns;

                          (iii)    comply   with    governmental    requirements
                                   applicable to the Sellers; and

                          (iv)     administer  the  winding-up  of the Sellers'
                                   business and operations,  including, without
                                   limitation, preparing and filing tax returns
                                   and the termination of the Sellers' employee
                                   benefit plans;

provided,  however, that any such inspection pursuant to this Section 10.3 shall
be  conducted  in such a manner  so as not to  unreasonably  interfere  with the
normal conduct of business by the Purchaser.  Notwithstanding anything contained
in this  Agreement  to the  contrary,  the Sellers may, at any time prior to the
Closing,  furnish to Purchaser a list of documents and records  relating any one
or more of the Assets and the  Assumed  Liabilities  which the Sellers and their
representatives would like to

                                       39

<PAGE>



retain or copy in connection  with the matters  specified in clauses (i) through
(iv) above.  The Sellers may retain such designated  documents and records which
the Purchaser determines, in the exercise of its reasonable discretion,  that it
does not need.  With respect to any  designated  documents or records  which the
Purchaser  determines,  in the  exercise of its  reasonable  discretion,  not to
permit the Sellers to retain,  the  Sellers  shall be entitle to copy same or to
request  that the  Purchaser  provide  copies of the same to the  Sellers at the
Sellers' expense.

                  (b) After the Closing Date, the Purchaser and Medical  Manager
shall make any of the  Employees  employed by the  Purchaser or Medical  Manager
available to PCN or its  successor,  as the case may be, in connection  with the
matters  referred  to in clauses  (i)  through  (iv) of Section  10.3 above (the
"Specified   Functions")  or  otherwise  in  connection   with  any  litigation,
governmental investigation and like matters, provided that such assistance shall
be provided in such a manner so as not to unreasonably interfere with the normal
conduct of business by the Purchaser and PCN or its  successor,  as the case may
be,  shall  reimburse  the  Purchaser  and Medical  Manager  for all  reasonable
out-of-pocket  expenses  incurred by the Purchaser and Medical Manager in making
such employees  available.  Without limiting the foregoing,  the Sellers may, at
any time prior to the Closing,  furnish to  Purchaser a list of Employees  whose
services PCN or its successor, as the case may be, will reasonably require after
the Closing Date in connection with the Specified Functions (each such Employee,
a "Specified  Employee").  The Purchaser and Medical Manager agree that, so long
as a Specified  Employee becomes and remains an employee of either the Purchaser
or Medical  Manager,  until the first to occur of (the "End Date") (x) the first
anniversary of the Closing Date, (y) the day on which the Designated  Employee's
employment  with the  Purchaser  or Medical  Manager is  terminated  and (z) the
thirtieth (30th) day following written notice by PCN to Medical Manager that PCN
no longer  requires  the  services  of the  Specified  Employee,  the  Specified
Employee  shall be permitted to, on PCN's behalf,  spend a reasonable  amount of
the  Specified  Employee's  working  time  to  perform  any  one or  more of the
Specified Functions;  provided,  however, that, in no event shall such functions
materially  or  unreasonably  interfere  with  the  normal  conduct  of any such
Specified   Employee's   normal  working   obligations  to  the  Purchaser.   In
consideration  of the Purchaser  and Medical  Manager  permitting  the Specified
Employee to perform  services on PCN's behalf in accordance with the immediately
preceding  sentence,  PCN or its  successor,  as the case may be,  shall  pay to
Medical Manager within five (5) business days following the end of each calendar
month  occurring prior to the End Date, an amount with respect to each Specified
Employee reasonably agreed upon by PCN and Medical Manager (each agreeing to act
reasonably and in good faith) taking into account the percentage of working time
such Specified  Employee is reasonably  expected to devote to the performance of
the Specified Functions.

         10.4. Y2K Updates and Patches.  (a) Without limiting anything contained
in Section  7.1 above,  from and after the Closing  Date,  if the  Purchaser  is
contacted or otherwise  requested by any Eligible End User, Eligible Reseller or
any of the Sellers with respect to the  distribution  or installation of any Y2K
Update or Y2K Patch,  the Purchaser  will,  at its own cost and expense,  on the
Sellers' behalf, use all reasonable  commercial  efforts to, as applicable:  (i)
distribute  the applicable Y2K Updates and Y2K Patches to each Eligible End User
and to whom or which,  as the case may be, any such Y2K  Updates or Y2K  Patches
have not been  distributed  by the Sellers prior to the Closing;  (ii) cause the
applicable Y2K Updates and Y2K Patches to be installed at each Direct

                                       40

<PAGE>



End User and to whom or which,  as the case may be, any such Y2K  Updates or Y2K
Patches have not been  installed by the Sellers prior to the Closing;  and (iii)
distribute the appropriate Y2K Updates and Y2K Patches to Eligible Resellers and
to whom or which,  as the case may be, any such Y2K Updates or Y2K Patches  have
not been distributed by the Sellers prior to the Closing.

                           (b) Without  limiting  anything  contained in Section
7.1 above,  from and after the  Closing  Date,  to the extent that any Year 2000
"patch" or other update has been developed or is otherwise made available by any
third party publisher or  manufacturer of operating  system software or computer
hardware  provided by any of the Sellers to any End Users or by Resellers to any
End  Users  (but  only  if  so  provided  in  connection  with  that  Reseller's
distribution of PMS Software),  the Purchaser  shall, at it own expense,  on the
Sellers' behalf, use its reasonable  commercial  efforts to, as applicable:  (i)
distribute  such update or patch to each Eligible End User who or which,  as the
case may be, uses the operating system or hardware to which such update or patch
relates, and to each Eligible Reseller and to whom or which, as the case may be,
any such update or patch has not been  distributed  by the Sellers  prior to the
Closing;  and (ii)  distribute such update or patch to, and cause such update or
patch to be installed at each Direct End User who or which,  as the case may be,
uses the operating  system or hardware to which such update or patch relates and
to whom or  which,  as the case may be,  any such  update  or patch has not been
installed by the Sellers prior to the Closing.

         10.5. The Facility.  (a) The Purchaser and Medical  Manager agree that,
with respect to PCN's offices located at 1200 The American Road,  Morris Plains,
New Jersey (the "Facility"),  during the period (a "Facility Transition Period")
commencing on the Closing Date and ending on the first to occur of: (x) the date
on which PCN moves all of its employees and  representatives out of the Facility
(a  "Facility  Termination  Date");  (y) the date on  which  the  Purchaser  has
terminated its lease for the Facility (the "Lease  Termination  Date");  and (z)
the 180th day  following the Closing  Date,  the  Purchaser and Medical  Manager
shall permit PCN to utilize the  Facility and utilize the computer  hardware and
other  equipment and telephone  lines,  numbers and services  located therein in
connection  with the matters  specified  in clauses (i) through  (iv) of Section
10.3 above (provided, however, that (x) PCN shall be permitted to have a maximum
of 10 employees utilize the Facility and such equipment and (y) the Purchaser or
Medical  Manager,  as the case may be,  shall  have the  right to place any such
employees in a part of the Facility which is separated from the  Purchaser's and
Medical  Manager's  employees  located at the Facility).  In  consideration  for
providing  PCN with the use of the  Facility,  during  the  Facility  Transition
Period,  PCN shall  reimburse  the  Purchaser  for all  out-of-pocket  costs and
expenses incurred by the Purchaser in connection with PCN's use of the Facility.
Anything contained in this Section 10.5 to the contrary notwithstanding, Medical
Manager  or the  Purchaser  shall  provide  PCN with at least  sixty  (60) days'
written notice prior to a Lease  Termination Date. Unless otherwise agreed to by
Medical  Manager or the  Purchaser,  PCN shall vacate the Facility no later than
five (5) days prior to a Lease Termination Date.

         10.6.  Use of Name.  The Sellers  agree that as promptly as  reasonably
practicable  following the Closing  Date:  (i) (x)PCN shall change its corporate
name from "Physician  Computer Network";  (y) Versyss shall change its corporate
name from "VERSYSS Incorporated"; and (z) WM shall

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<PAGE>



change its corporate  name from  "Wismer*Martin,  Inc.";  (ii) the Sellers shall
execute all such  documents  and  instruments  reasonably  necessary in order to
permit  the  Purchaser  to use the name  "Physician  Computer  Network",  "PCN",
"VERSYSS"  and  "Wismer*Martin"  in all  jurisdictions  in which the Sellers are
currently using such names or any variations or abbreviations thereof; and (iii)
none of the  Sellers  will use such  names or any  variations  or  abbreviations
thereof; provided,  however, that may use such names, for a period not to exceed
sixty (60) days, for: (A) de minimis  temporary uses such as exhausting  on-hand
supplies of  letterhead  and related  materials  that may contain a reference to
such name; or (B) any other temporary transitional.

         10.7.  Bank  Accounts.  For a period of sixty (60) days  following  the
Closing  Date,  the Purchaser  shall  either:  (i) not permit the amount of cash
maintained in any  Transferred  Account (as defined in Section  1.1(q) above) to
fall below the amount of cash contained in that Transferred  Account at the time
of the Closing;  or (ii) assure that the amount of cash  maintained  in any such
account  remains  sufficient to cover any checks written by the Sellers prior to
the Closing against funds maintained in such Transferred  Account at the time of
the Closing  (regardless of whether such checks are in respect of the payment of
Assumed  Liabilities  or Retained  Liabilities).  For purposes of preparing  any
Closing Date Net Worth  Statement,  the amount of any such check shall be deemed
to debit the amount of cash held by the Sellers on the Closing Date.

11.      CLOSING CONDITIONS

         11.1. Conditions to Obligation of Each Party to Effect the Closing. The
respective  obligations  of each party to effect the Closing shall be subject to
the fulfillment at or prior to the Closing Date of the following conditions:

                           (a) Confirmation  Order. An order (the  "Confirmation
Order") confirming the Plan (without any modifications thereto which are adverse
to the  Purchaser's  and Medical  Manager's  rights  hereunder)  shall have been
signed by the Bankruptcy Court and shall have become final and non-appealable.

                           (b) Effectiveness of the Plan. Each of the conditions
to the effectiveness of the Plan shall have occurred or have been duly waived.

                           (c)  HSR.  The  waiting  period   applicable  to  the
consummation  of the  transactions  contemplated by this Agreement under the HSR
shall have expired.

                           (d) No Injunction.  No temporary  restraining  order,
preliminary  or  permanent  injunction  or other  order  issued  by any court of
competent   jurisdiction   prohibiting  the  consummation  of  the  transactions
contemplated  hereby  shall  be in  effect;  provided,  however,  that  prior to
invoking this condition, each party shall use all reasonable efforts to have any
such decree, ruling, injunction or order vacated.


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<PAGE>



                           (e)  No  Action  Letter  or  Registration  Statement.
Medical  Manager  shall have  obtained the No Action  Letter or the Order or the
Registration Statement shall have been declared effective by the SEC.

         11.2. Additional Conditions to Obligations of the Purchaser and Medical
Manager.  The  obligations  of the Purchaser  and Medical  Manager to effect the
Closing are also subject to the following  conditions  (any one or more of which
may be waived  by  Medical  Manager,  but only in a  writing  signed by  Medical
Manager):

                           (a)  Representations  and  Warranties.  Each  of  the
representations  and  warranties of any one or more of the Sellers  contained in
this Agreement or in any document or instrument  delivered by either one or more
of the Sellers in connection herewith,  shall be true and correct,  individually
and in the  aggregate,  in all  material  respects  (except  that  any  specific
representation  or warranty that is qualified as to materiality  must be true as
written)  on  and  as of the  Closing  Date,  except  for  changes  specifically
contemplated by this Agreement, with the same force and effect as if made on and
as of the Closing Date, except that any such  representations or warranties made
as of a specified date shall have been true on and as of such date.

                           (b) Agreements and Covenants.  The Sellers shall have
performed or complied in all material  respects with all of their agreements and
covenants  contained in this  Agreement to be performed or complied  with by any
one or more of the  Sellers at or prior to the  Closing  Date  (except  that any
specific  agreement or covenant  that is qualified as to  materiality  must have
been performed as written).

                           (c) No Material Adverse Change. There shall have been
no  change  in  the  business,  results  of  operations,  properties  (including
intangible  properties),  financial  condition,  assets  or  liabilities  of the
Business   since  the  date  of  this  Agreement  to  the  Closing  Date  which,
individually  or in the  aggregate,  has had a  material  adverse  effect on the
Business' condition (financial or otherwise), results of operations,  properties
or business or on the Assets (a "Material  Adverse Effect");  provided,  however
that:  (i) no Material  Adverse  Effect shall be deemed to have occurred (and it
shall not  constitute  a failure of the  Sellers to satisfy the  conditions  set
forth in  Section  11.2(a)  or (b))  solely on account of any one or more of the
following:  (x) if the Sellers  incur any  liability,  absolute,  contingent  or
otherwise,  which does not  constitute an Assumed  Liability;  or (y) any one or
more of the Sellers  files the  Petition;  and (ii) for purposes of this Section
11.2(c) only, a decrease in the Sellers' revenues for any three consecutive full
calendar  month  following the date hereof by not more than 20% from the greater
of (A) the Sellers' average revenues for any three  consecutive  calendar months
during the preceding 12 months  (exclusive of revenues  attributable to business
units sold or otherwise disposed by the Sellers' during the preceding 12 months)
and (B) the Sellers' revenues for the corresponding three calendar months during
the immediately  preceding calendar year (exclusive of revenues  attributable to
business units sold or otherwise disposed by the Sellers during the preceding 12
months) shall not be deemed to constitute a Material Adverse Effect.


                                       43

<PAGE>



                           (d) Third  Party  Consents.  The  Sellers  shall have
obtained,  and Purchaser  shall have received  copies of, all of the  approvals,
waivers,  consents  and  releases of third  parties  listed on Schedule  11.2(d)
hereto,  none of which shall have been withdrawn,  revoked or modified as of the
Closing Date;  provided,  however,  that no such  approval,  waiver,  consent or
release  shall be required to be obtained to the extent that the transfer of the
Assets from the Sellers to the  Purchaser  and the  assignment by the Sellers to
the  Purchaser  and  assumption by the  Purchaser,  of the Assumed  Liabilities,
without  the Sellers  having  obtained  any such  approval,  waiver,  consent or
release is provided for in the Plan.

                           (e) Closing  Deliveries.  The Sellers, as applicable,
shall have executed and  delivered to the  Purchaser the following  instruments,
documents and  agreements  (such  instruments,  documents and  agreements  being
referred to herein as the "Ancillary Documents"):

                              (i) The agreements and instruments referred to in
Section 1.3 hereto to which either one or more of the Sellers are parties;

                              (ii) Such certificates to evidence compliance with
the  conditions  set forth in this  Agreement as may be reasonably  requested by
Medical Manager, including, without limitation, certificates of the secretary of
each of the Sellers as to corporate resolutions and incumbency.

                            (f)  Certificates.  Each of the  Sellers  shall have
obtained, and Medical Manager shall have received copies of a certificate of the
Secretary  of  State  of that  Seller's  state  of  incorporation  as to the due
incorporation and good standing of such Seller.

                            (g) Entire Business.  The Business to be sold by the
Sellers to the Purchaser as part of the Assets shall include all of the business
units,  divisions and operations of the type generally constituting the Business
as of the date hereof.

                            (h) Adjustment  Amount.  The  Adjustment  Amount (as
defined in Section 2.3(g) above) reflected on the PCN Estimated Closing Date Net
Worth Statement shall not exceed $4,000,000.

         11.3.   Additional   Conditions  to  Obligation  of  the  Sellers.  The
obligation  of the  Sellers  to  effect  the  Closing  are also  subject  to the
following conditions (any one or more of which may be waived by PCN, but only in
a writing signed by PCN):

                            (a)  Representations  and  Warranties.  Each  of the
representations  and  warranties of Purchaser and Medical  Manager  contained in
this Agreement or in any document or instrument  delivered by either one or both
of the Purchaser and Medical Manager in connection  herewith,  shall be true and
correct,  individually  and in the aggregate,  in all material  respects (except
that any specific representation or warranty that is qualified as to materiality
must be true as  written)  on and as of the  Closing  Date,  except for  changes
specifically contemplated by this Agreement, with

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<PAGE>



the same force and effect as if made on and as of the  Closing,  except that any
such  representations  or warranties made as of a specified date shall have been
true on and as of such date.

                            (b)  Agreements  and  Covenants.  The  Purchaser and
Medical  Manager shall have performed or complied in all material  respects with
all of its agreements and covenants  contained in this Agreement to be performed
or complied with by it at or prior to the Closing Date (except that any specific
agreement  or  covenant  that is  qualified  as to  materiality  must  have been
performed as written).

                            (c) No  Material  Adverse  Change.  There shall have
been  no  material  adverse  change  in the  business,  results  of  operations,
properties (including  intangible  properties),  financial condition,  assets or
liabilities of Medical  Manager and its  subsidiaries  taken as a whole from the
date of this  Agreement  to the  Closing  Date.  For  purposes  of this  Section
11.3(c), it shall be considered a material adverse effect if (x) Medical Manager
has  received a notice from the NASDAQ  Stock  Market  that the Medical  Manager
Stock is threatened to be, or the Medical  Manager Stock  otherwise is, delisted
from trading, on the NASDAQ Stock Market; or (y) Medical Manager fails to timely
file with the SEC any Medical Manager SEC Document  required to be so filed with
the SEC under applicable laws, rules and regulations.

                            (d) Third Party  Consents.  Medical  Manager and the
Purchaser shall have obtained, and PCN shall have received copies of, all of the
approvals,  waivers,  consents and releases of third parties  listed on Schedule
11.3(d) hereto, none of which shall have been withdrawn,  revoked or modified as
of the Closing Date.

                            (e) Closing  Deliveries.  The  Purchaser and Medical
Manager,  as applicable,  shall have executed and delivered to PCN the following
instruments, documents and agreements:

                              (i) The agreements and instruments  referred to in
Section 1.3 hereto to which the Purchaser is a party;

                              (ii) Such certificates to evidence compliance with
the  conditions  set forth in this  Agreement as may be reasonably  requested by
PCN,  including,  without  limitation,  certificates  of  the  secretary  of the
Purchaser as to corporate resolutions and incumbency.

                            (f) Certificates.  Medical Manager and the Purchaser
shall have obtained, and PCN shall have received copies of, a certificate of the
Secretary  of State of the states of  incorporation  of Medical  Manager and the
Purchaser,  respectively,  as to the due  incorporation  and  good  standing  of
Medical Manager and the Purchaser, respectively.

                            (g) Opinion of Counsel.  PCN shall have  received an
opinion of outside  legal  counsel to  Medical  Manager,  in form and  substance
reasonably satisfactory to PCN, that the Medical Manager Stock is validly issued
and,  in  the  event  that  the  Registration   Statement  is  filed,  that  the
Registration Statement is effective.

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<PAGE>




12.      TERMINATION, AMENDMENT AND WAIVER

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

                            (a) By mutual  consent of the  Purchaser and Medical
Manager, on the one hand, and the Sellers, on the other hand; or

                            (b)  By  either  Medical  Manager  or  PCN,  if  the
transaction  contemplated by this Agreement  shall not have been  consummated by
May 31, 2000 (the "Termination Date") (provided that the right to terminate this
Agreement  under this Section  12.1(b) shall not be available to any party whose
failure to fulfill any obligation hereunder has been the cause of or resulted in
the failure of the Closing to occur on or before such date); or

                            (c) By either  Medical  Manager  or PCN if there has
been a material breach of any representation, warranty, covenant or agreement on
the part of the other party set forth in this  Agreement,  which  breach has not
been cured within ten (10)  business  days  following  receipt by the  breaching
party of notice specifying such breach in reasonable detail; or

                            (d) By either  Medical  Manager or PCN if a court of
competent  jurisdiction or governmental  regulatory or administrative  agency or
commission having proper jurisdiction and authority thereof shall have issued an
order,  decree or ruling (which order, decree or ruling the parties hereto shall
use their best efforts to lift)  prohibiting  the  transactions  contemplated by
this  Agreement  and such order,  decree or ruling  shall have become  final and
non-a ppealable; or

                            (e) By Medical  Manager if the Petition is not filed
by the close of business on the business day next succeeding the date hereof; or

                            (f) By Medical Manager by delivery to PCN of notice:
(i) at any time  after  PCN has  failed  to  deliver  any  Subsequent  Financial
Statement on or prior to the date required  under Section  9.9(a) or 9.9(b),  of
this Agreement,  respectively,  if, on the date on which such notice is received
by PCN,  such  failure is  continuing;  or (ii) at any time after the Sellers or
their  accountants  have failed to deliver any  consent or  certification  on or
prior  to the  date  specified  therefor  pursuant  to  Section  9.9(c)  of this
Agreement if such failure continues for a period of at least five days following
receipt by PCN of such notice;  provided,  however, that Medical Manager may not
terminate this Agreement  pursuant to this Section 12.1(f) unless, in the notice
delivered by Medical  Manager to PCN pursuant to this Section  12.1(f),  Medical
Manager  represents  to PCN that,  at the time that such notice is so delivered,
Medical Manager has begun the preparation of such a registration statement.


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<PAGE>



                            (g) By  Medical  Manager  if any  one or more of the
Sellers:  (i) appears before the Bankruptcy Court or otherwise files papers with
the  Bankruptcy  Court in support of any plan of  reorganization  other than the
Plan; (ii) enters into a memorandum of understanding,  agreement in principal or
definitive  agreement with any person or entity (the "Third Party"),  other than
the  Purchaser,  Medical  Manager  or  one of its  Affiliates,  relating  to any
Acquisition Proposal.  As used herein, an "Acquisition  Proposal" shall mean any
proposal or offer (x) for a merger or other business combination  involving PCN,
(y) to  acquire  all of  the  common  stock  of  PCN  or (z) to  acquire  all or
substantially all of the Sellers' assets other than the transaction contemplated
by this  Agreement;  or (iii) publicly  announces its intention to do any of the
foregoing.

                            (h) Prior to the Closing Date by Medical  Manager in
the event that the  Adjustment  Amount (as  defined  in  Section  2.3(g)  above)
reflected  on the  PCN  Estimated  Closing  Date  Net  Worth  Statement  exceeds
$4,000,000.

                  12.2. Effect of Termination.  (a) Upon the termination of this
Agreement as provided for in Section 12.1, this Agreement shall forthwith become
void and there shall be no  liability or further  obligation  on the part of any
party hereto;  provided,  however, that any such termination shall not be deemed
to in any way limit or relieve any liability of any party hereunder with respect
to a breach  by any  party  occurring  prior to such  termination  of any of its
representations, warranties, covenants or agreements contained herein; provided,
further,  that the provisions of this Section 12.2 and Section 9.5 shall survive
any such termination.

                            (b) In the event of  termination  of this  Agreement
pursuant  to Section  12.1(c) due to a breach of any  representation,  warranty,
covenant  or  agreement  which  would have been  capable  of cure if  reasonable
efforts had been made by the breaching  party,  but which breach remains uncured
at the time of the  termination,  the  non-terminating  party  shall  pay to the
terminating party (the "Terminating Party") an amount equal to all out-of-pocket
costs  and  expenses,   including,  without  limitation,   reasonable  fees  and
disbursements of counsel,  incurred by the Terminating  Party in connection with
the   preparation   and  negotiation  of  this  Agreement  and  the  transaction
contemplated  hereby up to a maximum  of: (i) in the case of the  Purchaser  and
Medical  Manager,  $500,000 of such costs and expenses;  and (ii) in the case of
the Sellers, $500,000 of such costs and expenses.

                            (c) In the event of a termination  of this Agreement
pursuant to Section 12.1(g), upon consummation of an Acquisition Proposal giving
rise to such termination  under  circumstances in which the  consideration to be
paid  (including,  without  limitation,  the  liabilities to be assumed) by such
Third Party for  substantially  all of the assets of the Sellers will exceed the
Purchase Price,  the Sellers shall pay to the Purchaser  $2,000,000 in cash (the
"Break-Up  Fee")  plus an amount in cash  equal to all  out-of-pocket  costs and
expenses,  including,  without limitation,  reasonable fees and disbursements of
counsel,  incurred by the  Purchaser  in  connection  with the  preparation  and
negotiation of this Agreement and the  transaction  contemplated  hereby up to a
maximum of $500,000 of such costs and expenses.


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<PAGE>



                            (d) The termination of this Agreement as provided in
Section 12.1 shall in no way limit, restrict or modify any of the obligations of
the  Sellers to either one or both of the  Purchaser  and Medical  Manager  with
respect to the Assigned Loans, the Pre-Petition Loan and the DIP Loan.

                  12.3.  Extension;  Waiver.  At any time  prior to the  Closing
Date, the parties hereto may, to the extent legally allowed: (a) extend the time
for the performance of any of the obligations or other acts of the other parties
hereto,  (b)  waive  any  inaccuracies  in the  representations  and  warranties
contained  herein or in any  document  delivered  pursuant  hereto and (c) waive
compliance with any of the agreements or conditions  contained herein.  Any such
extension or waiver shall be valid only if set forth in an instrument in writing
signed by the party to be bound thereby.


13.      INDEMNIFICATION

         13.1. Indemnification of the Purchaser and Medical Manager. Each of the
Sellers, jointly and severally, hereby covenants and agrees with Medical Manager
and the  Purchaser  that it shall  indemnify  Medical  Manager and the Purchaser
(each a "Purchaser  Indemnified Party") and hold them harmless from, against and
in respect of any and all costs, losses, claims, liabilities,  fines, penalties,
damages  and  expenses   (including   court  costs  and   reasonable   fees  and
disbursements of counsel) (collectively  "Losses") resulting from or arising out
of:

                            (a)  any   liabilities   which   are   not   Assumed
Liabilities,  and  any  claim  or  demand  by a  third  party  (whether  or  not
successful) to cause or require a Purchaser Indemnified Party to pay, perform or
discharge  any debt,  obligation,  liability or  commitment  referred to in this
clause (a); or
                            (b) any breach of any of the covenants or agreements
made by any one or more of the Sellers  contained  in this  Agreement  or in any
Ancillary Document.

                  Nothing  contained  in this  Section  13.1 shall in any way be
deemed  to limit,  restrict  or in any way  impact  upon the  Sellers  rights to
liquidate,  distribute  its assets and wind-up its operation in accordance  with
the terms of the Plan.

         13.2.  Indemnification  of the  Sellers by the  Purchaser  and  Medical
Manager.  Each of Medical  Manager and the  Purchaser,  jointly  and  severally,
hereby covenants and agrees with the Sellers that it shall indemnify each of the
Sellers (individually a "Seller Indemnified Party") and hold them harmless from,
against and in respect of any and all Losses resulting from or arising out of:

                            (a) the Assumed Liabilities, and any claim or demand
by a third  party  (whether  or not  successful)  to cause or  require  a Seller
Indemnified Party to pay, perform or discharge any debt,  obligation,  liability
or commitment referred to in this clause (a); or


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                            (b) any breach of any of the covenants or agreements
made by any one or both of Medical  Manager or the  Purchaser  contained in this
Agreement or in any Ancillary Document.

         13.3. Survival of Representations,  Warranties,  Covenants,  Agreements
and Indemnities.  (a) The  representations and warranties of each of the parties
hereto, and the indemnities of each of the parties hereto in connection with any
breach of any such  representations or warranties contained in this Agreement or
in any Ancillary Document shall not survive the Closing.

                  (b) All  covenants  and  agreements of any each of the parties
hereto  contained in this Agreement or any Ancillary  Document shall survive the
Closing  for a  period  specified  in  such  provision  or,  if  not  specified,
indefinitely.

         13.4.  Right to  Defend,  Etc.  If the  facts  giving  rise to any such
indemnification  pursuant to this  Article 13 shall  involve any actual claim or
demand  by  any  third  party  (a  "Third  Party  Claim")  against  a  Purchaser
Indemnified  Party  or a  Seller  Indemnified  Party,  as  the  case  may be (an
"Indemnified  Party") the party  required to indemnify  such  Indemnified  Party
pursuant to Sections 13.1 or 13.2, as the case may be (the "Indemnifying Party")
shall be entitled to notice of such claim.  At such time as the remedy sought in
the Third Party Claim is solely money  damages or if Medical  Manager  otherwise
permits, then Sellers, at their sole cost and expense, may assume the defense of
the Third Party  Claim.  If Sellers  assume the defense of a Third Party  Claim,
then Sellers shall select counsel reasonably  satisfactory to Medical Manager to
conduct the defense.  Sellers shall not consent to a settlement of, or the entry
of any judgment  arising from, any Third Party Claim,  unless (i) the settlement
or  judgment  is solely  for money  damages  and Seller  admits in  writing  its
liability to hold Medical  Manager and the  Purchaser  harmless from and against
any losses, damages,  expenses and liabilities arising out of such settlement or
judgment or (ii) Medical  Manager  reasonably  consents  thereto.  Sellers shall
provide  Medical  Manager  with ten (10) days  prior  written  notice  before it
consents to a settlement of, or the entry of a judgment  arising from, any Third
Party Claim. Medical Manager and the Purchaser shall be entitled to participate,
at their own expense,  in the defense of any Third Party  Claim,  the defense of
which is assumed by Sellers  with its own  counsel.  With respect to Third Party
Claims in which,  and for so long as, the remedy sought is not money damages and
Medical  Manager does not permit  Sellers to assume the defense,  Sellers shall,
upon notice to Medical  Manager within fifteen (15) days after Sellers  receives
notices of the Third Party Claim, be entitled to participate in the defense with
his own counsel at its own  expense.  In such  instance,  or if Sellers does not
assume or participate in the defense of any Third Party Claim in accordance with
the terms of this  Section,  Sellers  shall be bound by the results  obtained by
Medical  Manager with respect to the Third Party Claim.  Medical  Manager  shall
provide  Sellers with ten (10) days prior written notice before it consents to a
settlement  of, or the entry of a judgment  arising  from,  any such Third Party
Claim.

         13.5.  Tax  Effect.  The  amount  of  any  indemnification  due  to  an
Indemnified  Party  pursuant to this  Section  13, as the case may be,  shall be
calculated after taking into account the amount of all insurance,  cash or other
direct financial benefits payable to such Indemnified Party (including any

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<PAGE>



such benefits payable by third parties) and after taking into account the United
States federal,  state and local and foreign national,  provincial and local tax
benefits or detriments to the Indemnified  Party, as the case may be, calculated
assuming  the  Indemnified  Party were a taxpayer  subject to tax at the highest
marginal  rate in effect  when the  payment  is made,  of the  payments  made in
respect  of such  loss,  claim,  demand,  cost  or  expense  giving  rise to the
indemnification  and the payments,  including  indemnification  payments made in
respect thereto.

         13.6. Settlement of Certain Claims. Without limiting anything contained
in this Article 13, in the event that any of the Sellers or their successors, on
the one hand, or Medical  Manager or the Purchaser,  on the other hand,  becomes
aware of any claim asserted by any person which constitutes a Retained Liability
(an "Unassumed Claim"), each party shall promptly notify the other party and the
Purchaser and Medical Manager shall cooperate with the Sellers in any reasonable
manner  requested  by the  Sellers or their  successors,  as the case may be, or
otherwise  reasonably  suggested  by the  Purchaser,  with any  negotiations  or
proceedings  involving any such Unassumed Claim. Without limiting the foregoing,
at the request and on behalf of the Sellers  (and,  in each case, so long as the
Sellers, or their successors, first provide to the Purchaser and Medical Manager
reasonable  evidence of the Sellers' or their  successors',  as the case may be,
ability  to pay the  amounts  required  to be paid to the  Purchaser  or Medical
Manager  provided for below in this Section  13.6),  the  Purchaser  and Medical
Manager  provide such services or products  (including  providing  additional or
alternate  hardware or software)  to any End User or other  person  asserting an
Unassumed  Claim  reasonably  requested by PCN (in each case consistent with the
Purchaser's and Medical Manager's  customary  business  practices and subject to
the Purchaser's and Medical  Manager's  available  resources) in order to remedy
and settle such  Unassumed  Claim  ("Remedial  Services").  With  respect to any
Remedial Services  performed by the Purchaser or Medical Manager in satisfaction
of an Unassumed  Claim,  the Sellers  shall pay to the Purchaser an amount equal
to: (i) all actual direct costs incurred by the Purchaser and Medical Manager in
providing  such services  (including,  without  limitation,  (A) the cost to the
Purchaser  and  Medical  Manager  of any  equipment,  supplies  or  other  items
(including  the costs of the  shipping  and  handling  thereof)  provided by the
Purchaser  or  Medical  Manager  to the End User or other  person in  connection
therewith,  (B) travel costs  incurred by the Purchaser  and Medical  Manager in
connection therewith,  and (C) to the extent the Purchaser or Medical Manager is
required to utilize third party contractors to perform any of the services,  the
amounts payable by the Purchaser or Medical  Manager to third party  contractors
for  providing  such  services);  and (ii) the amount  reasonably  necessary  to
reimburse the  Purchaser  and Medical  Manager for the amount of time devoted by
the Purchaser's and Medical Manager's employees to perform such services,  which
amount  referred to in this clause (ii) shall be  calculated  at a rate equal to
80% of Medical  Manager's  then  published  hourly  rates for  software  support
services,  hardware  support and services,  training,  programming and the like;
provided  however,  that, none of the Sellers nor any of their  successors shall
have any  obligation  to pay the  Purchaser  or Medical  Manager any such amount
unless,  prior to the time  that the  Remedial  Services  are  performed  by the
Purchaser or Medical Manager,  the Sellers or their successors have consented to
or otherwise  requested the  performance  of such Remedial  Services;  provided,
further,  however,  that, in the event that,  in the exercise of its  reasonable
business judgment,  the Purchaser  determines that certain services  (including,
without  limitation,  providing  additional  or alternate  hardware or software)
should be provided to a person

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<PAGE>



in order to remedy or settle an Unassumed Claim ("Suggested Remedial Services"),
the  Purchaser  shall  provide  PCN or its  successor,  as the case may be, with
written notice thereof and, if, within ten (10) business days following  receipt
of such  notice  PCN or its  successor  has  not  responded  to the  Purchaser's
suggestions  contained therein, PCN or its successor,  as the case may be, shall
be deemed to have  consented to the  Purchaser  providing the person in question
with the  Suggested  Remedial  Services  for  which PCN or its  successor  shall
obligated to reimburse the Purchaser as provided for in this Section 13.6.


14.      GENERAL

         14.1. Expenses,  Etc. Except as otherwise specifically provided herein,
the parties hereto shall pay their own  respective  taxes,  expenses,  costs and
fees  incurred  in  connection   with  this   Agreement  and  the   transactions
contemplated  hereby,  including,  without limitation,  the fees and expenses of
their respective counsel and accountants and other experts. Without limiting the
foregoing,  Medical  Manager  shall be  responsible  for the  payment of the HSR
filing fee.

         14.2.  Waivers.  Any breach of any obligation,  covenant,  agreement or
condition  contained  herein shall be deemed waived by the  non-breaching  party
only by a writing,  setting forth with particularity the breach being waived and
the scope of the waiver,  but such  waiver  shall not operate as a waiver of, or
estoppel with respect to, any  subsequent or breach.  No waiver shall be implied
from any conduct or action of the  non-breaching  party.  No failure or delay by
any party in  exercising  any right,  power or privilege  hereunder or under any
Ancillary  Document,  and no course of dealing by any party,  shall operate as a
waiver  of any  right,  power or  privilege  hereunder  or under  any  Ancillary
Document,  nor shall any single or partial exercise of any other right, power or
privilege.

         14.3.  Definition of  Knowledge.  As used in this  Agreement,  the term
"knowledge"  means  knowledge  which  supervisory,   managerial,  and  executive
employees  have after  making due  inquiry and  exercising  due  diligence  with
respect thereto.

         14.4.  Binding  Effect;  Benefits.  This  Agreement  shall inure to the
benefit of, and shall be binding upon, the parties  hereto and their  respective
successors  and  permitted  assigns.  This  Agreement may not be assigned by any
party  hereto  without the prior  written  consent of the other  parties  hereto
except  that no  such  consent  shall  be  required  for  assignment  to a party
acquiring all or  substantially  all of either party's stock or assets  provided
that such party  assumes all of the  assigning  party's  obligations  hereunder.
Except as otherwise set forth herein,  nothing in this  Agreement,  expressed or
implied,  is intended to confer on any person  other than the parties  hereto or
their  respective  successors  and  permitted  assigns  any  rights,   remedies,
obligations, or liabilities under or by reason of this Agreement.

         14.5. Notices. All notices,  requests, demands and other communications
which  are  required  to be or may be given  under  this  Agreement  shall be in
writing and shall be deemed to have been duly given when delivered in person, or
transmitted by facsimile, or upon receipt after dispatch

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<PAGE>



by certified or registered  first class mail,  postage  prepaid,  return receipt
requested,  to the party to whom the same is so given or made,  at the following
addresses or  facsimile  numbers (or such others as shall be provided in writing
hereinafter):

                  If to Medical Manager, to:

                           Medical Manager Corporation
                           669 River Drive, Center 2
                           Elmwood Park, NJ 07407
                           Attention: General Counsel
                           Facsimile No.:  (201) 703-3443

                  If to the Purchaser, to:

                           Medical Manager Health Systems, Inc.
                           c/o Medical Manager Corporation
                           669 River Drive, Center 2
                           Elmwood Park, NJ 07407
                           Attention: General Counsel
                           Facsimile No.:  (201) 703-3443

                  With copies (in the case of a notice to Medical  Manager,  the
                  Purchaser or both) to:

                           Akerman Senterfitt & Eidson
                           Sun Trust International Center
                           One Southeast Third Avenue
                           28th Floor
                           Miami, Florida  33131
                           Attention: Scott Wasserman, Esq.
                           Facsimile No.:  (305) 374-5095


                  If to any one or more of the Sellers, to:

                           Physician Computer Network, Inc.
                           1200 The American Road
                           Morris Plains, NJ  07950
                           Attention:  President
                           Facsimile No.:  (973) 490-3103


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<PAGE>



                  With copies (in the case of a notice  delivered  to any of the
                  Sellers) to:

                           Gordon Altman Weitzen Shalov & Wein LLP
                           114 West 47th Street
                           21st Floor
                           New York, New York  10036-1510
                           Attention:  Jonathan Klein, Esq.
                           Facsimile No.:  (212) 626-0799


         14.6.  Entire  Agreement.  This Agreement  (including the Schedules and
Exhibits  hereto)  constitutes  the entire  agreement  and  supersede  all prior
agreements and understandings, oral and written, between the parties hereto with
respect  to  the   subject   matter   hereof;   provided,   however,   that  the
Confidentiality Agreement shall survive the execution of this Agreement.

         14.7.  Headings.  The  section  and other  headings  contained  in this
Agreement are for  reference  purposes only and shall not be deemed to be a part
of this Agreement or to affect the meaning or interpretation of this Agreement.

         14.8.  Counterparts.  This  Agreement  may be executed in any number of
counterparts,  each of which,  when executed,  shall be deemed to be an original
and all of which  together  shall be deemed  to be one and the same  instrument.
Delivery  of an  executed  signature  page by  telecopy  shall be  effective  as
delivery of a manually signed counterpart of such signature page.

         14.9.  Governing Law; Submission to Jurisdiction.  This Agreement shall
be construed as to both validity and performance and enforced in accordance with
and governed by the laws of the State of New Jersey,  without  giving  effect to
the conflicts of law principles  thereof.  Following the filing of the Petition,
any dispute hereunder shall be determined by the court having  jurisdiction with
respect to such bankruptcy case until such time as the Release Date.

         14.10.  Third Party  Beneficiaries.  Nothing in this  Agreement  or any
Ancillary  Document is intended  to, or shall be  construed  so as to create any
third party  beneficiary to this  Agreement or otherwise  confer any rights upon
any person, firm or corporation that is not a party hereto,  including,  without
limitation, any employee or End-User.

         14.11.  Severability.  If any term or provision of this Agreement shall
to any extent be invalid or unenforceable, the remainder of this Agreement shall
not be affected  thereby,  and each term and provision of the Agreement shall be
valid and enforced to the fullest extent permitted by law.

         14.12. Publicity.  The initial press release relating to this Agreement
shall be a joint press release,  the text of which shall be agreed to by each of
PCN and Medical  Manager.  Unless  otherwise  required by  applicable  law or by
obligations  pursuant to any listing  agreements with or rules of any securities
exchange,  the parties  hereto shall consult with each other before  issuing any
press release

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<PAGE>



or otherwise  making any public  statement with respect to this Agreement or the
transactions  contemplated  hereby and shall not issue any such  release or make
any such statements  without the prior written consent of the other party (which
consent will not be unreasonably withheld or delayed).

         14.13. Amendments. This Agreement may not be modified or changed except
by an  instrument  or  instruments  in writing  signed by the party against whom
enforcement of any such modification or amendment is sought.

         14.14.  Drafting  Conventions.  Any use herein of the  phrase  "and/or"
shall be deemed  to mean both  "and"  and  "or".  Any use  herein of the  phrase
"including"  shall  be  deemed  to mean  "including,  without  limitation".  The
masculine  gender used herein shall be deemed to include the feminine and neuter
genders,  and vice-versa,  and the singular or plural shall be deemed to include
the plural or singular,  as the case may be, when required by context. All terms
defined herein shall be deemed to include the past tense of such terms.

         14.15. Joint and Several Liability. (a) All representations, covenants,
agreements  and  obligations  of any  one or  more  of the  Sellers  under  this
Agreement shall be deemed to have been made or incurred jointly and severally by
all of the Sellers.

                  (b) All representations, covenants, agreements and obligations
of either one or both of the Purchaser and Medical  Manager under this Agreement
shall be deemed to have been made or incurred  jointly and  severally by each of
the Purchaser  and Medical  Manager.  Without  limiting the  foregoing,  Medical
Manager hereby absolutely and unconditionally  guaranties the obligations of the
Purchaser  hereunder  and  under the  Ancillary  Documents,  including,  without
limitation, the obligation to pay the Purchase Price.


15.      GLOSSARY

                  For purposes of this Agreement, the following terms shall have
the definitions ascribed to them below.

   "Account Receivable Schedule" is defined in Section 5.9 of the Agreement.

   "Accounts Payable" is defined in Section 3.1(b) of the Agreement.

  "Accounts Receivable" is defined in Section 1.1(e) of the Agreement.

  "Affiliate" is defined in Section 1.1 of the Agreement.

  "Agreed Reimbursement Amount" is defined in Section 10.2(b) of the Agreement.

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<PAGE>



   "Agreement" shall mean this Asset Purchase Agreement.

   "AM Agreement" is defined in Section 5.18(c) of the Agreement.

   "Ancillary Documents" is defined in Section 10.2(e) of the Agreement.

   "Acquisition Proposals" is defined in Section 12.1(g) of the Agreement.

   "Assets" is defined in Section 1.1 of the Agreement.

   "Assigned Loans" is defined in Section 3.1(f) of the Agreement.

   "Assignment and Assumption Notice" is defined in Section 7.1(d) of the
    Agreement.

   "Assignment and Assumption Procedures" is defined in Section 7.1(d) of the
    Agreement.

   "Assignment and Intercreditor Agreement" is defined in Section 3.1(f) of the
    Agreement.

   "Assumed Liabilities" is defined in Section 3.1 of the Agreement.

   "Audited Statements" is defined in Section 5.6 of the Agreement.

   "Auditors" is defined in Section 2.3 of the Agreement.

   "Bank Debt" is defined in Section 3.2(g) of the Agreement.

   "Bankruptcy Code" is defined in Section 1.2(g) of the Agreement.

   "Bankruptcy Court" is defined in Section 7.1 of the Agreement.

   "Books and Records" is defined in Section 1.1(j) of the Agreement.

   "Break-Up Fee" is defined in Section 12.2 of the Agreement.

   "Business" is defined in the Background section to the Agreement.

   "Cash Payment" is defined in Section 2.1 of the Agreement.

   "Claims" is defined in Section 1.2(e) of the Agreement.

   "Class Action Litigation" is defined in Section 3.2(a) of the Agreement.

   "Closing" is defined in Section 4 of the Agreement.

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<PAGE>



   "Closing Account" is defined in Section 1.2(k) of the Agreement.

   "Closing Date" is defined in Section 4 of the Agreement.

   "Closing Date Net Worth Statement" is defined in Section 2.3(f) of the
    Agreement.

   "Code" shall mean the Internal Revenue Code of 1986.

   "Commercial Agreements" is defined in Section 1.1(g) of the Agreement.

   "Commitments" is defined in Section 5.12.4 of the Agreement.

   "Confidentiality Agreement" is defined in Section 9.5 of the Agreement.

   "Confirmation Hearing" is defined in Section 7.1(c) of the Agreement.

   "Confirmation Order" is defined in Section 11.1(a) of the Agreement.

   "Deferred Revenue Account" is defined in Section 3.1(b) of the Agreement.

   "Designated Employees" is defined in Section 9.6 of the Agreement.

   "Designated Employees Severance Obligation" is defined in Section 9.6 of the
    Agreement.

   "DIP Loan" is defined in Section 2.2(b) of the Agreement.

   "DIP Loan Agreement" is defined in Section 2.2(b) of the Agreement.

   "Direct End Users" is defined in Section 8.4(a) of the Agreement.

   "Disclosure Statement" is defined in Section 7.1(b) of the Agreement.

   "Distributees" is defined in Section 2.4(c) of the Agreement.

   "Eligible End Users" is defined in Section 8.4(a) of the Agreement.

   "Eligible Resellers" is defined in Section 8.4(a) of the Agreement.

   "Employees" is defined in Section 5.18(a) of the Agreement.

   "Employee Benefit Plans" is defined in Section 5.22(a) of the Agreement.

   "End-User Agreements" is defined in Section 1.1(c) of the Agreement.

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<PAGE>



   "End-Users" is defined in Section 1.1(c) of the Agreement.

   "Equipment" is defined in Section 1.1(h) of the Agreement.

   "Equipment Leases" is defined in Section 1.1(i) of the Agreement.

   "ERISA" is defined in Section 5.22 of the Agreement.

   "Excess Cash" is defined in Section 1.1(p) of the Agreement.

   "Excluded Provisions" is defined in Section 13.3(b) of the Agreement.

   "Executory Contract" is defined in Section 7.1(b) of the Agreement.

   "Financial Statements" is defined in Section 5.6 of the Agreement.

   "GAAP" is defined in Section 5.6 of the Agreement.

   "Health Network" is defined in Section 5.14(b) of the Agreement.

   "HIPAA" is defined in Section 5.22(b) of the Agreement.

   "HP" is defined in the preamble to the Agreement.

   "HSR" is defined in Section 5.5 of the Agreement.

   "IHS" is defined in the preamble to this Agreement.

   "Indemnified Party" is defined in Section 12.4 of the Agreement.

   "Indemnifying Party" is defined in Section 12.4 of the Agreement.

   "Insurance Companies" is defined in Section 1.2(e) of the Agreement.

   "Intellectual Property" is defined in Section 1.1(d) of the Agreement.

   "Inventory" is defined in Section 1.1(e) of the Agreement.

   "IRS" shall mean the Internal Revenue Service.

   "KPMG" is defined in Section 1.2(e) of the Agreement.

   "Liability Statement" is defined in Section 3.1(a) of the Agreement.


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<PAGE>



   "Losses" is defined in Section 13.1 of the Agreement.

   "Market Price" is defined in Section 2.4(a) of the Agreement.

   "Material Adverse Effect" is defined in Section 5.7 of the Agreement.

   "MDX" is defined in Section 5.14(b) of the Agreement.

   "Medical Account" is defined in Section 1.2(b) of the Agreement.

   "Medical Manager" is defined in the preamble of the Agreement.

   "Medical Manager Retention Bonuses" is defined in Section 9.6 of the
    Agreement.

   "Medical Manager SEC Documents" is defined in Section 6.8(a) of the
    Agreement.

   "Medical Manager Stock" is defined in Section 2.1(b) of the Agreement.

   "Medical Manager 8-K" is defined in Section 6.8(a) of the Agreement.

   "Medical Manager 10-K" is defined in Section 6.8(a) of the Agreement.

   "Medical Manager 10-Q" is defined in Section 6.8(a) of the Agreement.

   "Mends" is defined in Section 5.14(b) of the Agreement

   "MMN" is defined in Section 1.2(i) of the Agreement.

   "1933 Act" is defined in Section 2.4(c) of the Agreement.

   "No Action Letter" is defined in Section 2.4(c) of the Agreement.

   "Order" is defined in Section 2.4(d) of the Agreement.

   "OEM Agreement" is defined in Section 1.1(g) of the Agreement.

   "Operating Software" is defined in Section 5.14(b) of the Agreement

   "Payment" is defined in Section 1.6 of the Agreement.

   "Petition" is defined in Section 7.1(a) of the Agreement.

   "Plan" is defined in Section 7.1(b) of the Agreement.


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   "PBGC" is defined in Section 5.22(b) of the Agreement.

   "PCN" is defined in the preamble to this Agreement.

   "PMS Software" is defined in the Background section to the Agreement.

   "Pre-Petition Loan" is defined in Section 2.2(a) of the Agreement.

   "Purchase Price" is defined in Section 2.1 of the Agreement.

   "Purchaser" is defined in the preamble to the Agreement.

   "Purchaser Indemnified Party" is defined in Section 13.1 of the Agreement.

   "Purchaser Receivables" is defined in Section 1.6 of the Agreement.

   "Real Property Leases" is defined in Section 1.1(g) of the Agreement.

   "Registration Statement" is defined in Section 2.4(e) of the Agreement.

   "Reimbursement Amount" is defined in Section 3.4 of the Agreement.

   "Reseller Agreements" is defined in Section 1.1(g) of the Agreement.

   "Retained Accounts" is defined in Section 1.2(k) of the Agreement.

   "Retained Agreements" is defined in Section 1.2(h) of the Agreement.

   "Retained Assets" is defined in Section 1.2 of the Agreement.

   "Retained Claims" is defined in Section 3.2(d) of the Agreement.

   "Retained Liabilities" is defined in Section 3.2 of the Agreement.

   "Retained Litigation" is defined in Section 3.2(c) of the Agreement.

   "Sale Bonuses" is defined in Section 5.18(c) of the Agreement.

   "Scheduling Order" is defined in Section 7.1(c) of the Agreement.

   "SEC" is defined in Section 2.4(c) of the Agreement.

   "Sellers" is defined in the preamble to the Agreement.


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   "Seller Indemnified Party" is defined in Section 13.2 of the Agreement.

   "Services Agreement" is defined in Section 7.1(c) of the Agreement.

   "Severance Obligations" is defined in Section 5.18(a) of the Agreement.

   "SmartPractice Agreement" is defined in Section 1.2(i) of the Agreement.

   "Specified Employees" is defined in Section 10.3(b) of the Agreement.

   "Standard Agreements" is defined in Section 5.12.1 of the Agreement.

   "Stay-Put Bonuses" is defined in Section 5.18(c) of the Agreement.

   "Stock Payment" is defined in Section 2.1(b) of the Agreement.

   "Subsequent Audited Financial Statements" is defined in Section 9.9(b) of the
    Agreement.

   "Subsequent Financial Statements" is defined in Section 9.9(b) of the
   Agreement.

   "Subsequent Interim Financial Statements" is defined in Section 9.9(a) of the
   Agreement.

   "Termination Date" is defined in Section 12.1(b) of the Agreement.

   "Third Party Agreements" is defined in Section 1.1(g) of the Agreement.

   "Third Party Claim" is defined in Section 12.4 of the Agreement.

   "Transferred Accounts" is defined in Section 1.1(q) of the Agreement.

   "Trigger Date" is defined in Section 2.1(d) of the Agreement.

   "Unexpired Lease" is defined in Section 7.1(b) of the Agreement.

   "Versyss" is defined in the preamble to this Agreement.

   "Web Agreement" is defined in Section 1.1(g) of the Agreement.

   "WM" is defined in the preamble to this Agreement.

   "Y2K Compliant" is defined in Section 5.14(d) of the Agreement.

   "Y2K Obligations" is defined in Section 7.1 of the Agreement.


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<PAGE>



   "Y2K Patches" is defined in Section 5.14(b) of the Agreement.

   "Y2K Updates" is defined in Section 5.14(b) of the Agreement.




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<PAGE>


                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Agreement to be signed in their  respective  names by an officer  thereunto duly
authorized on the date first above written.

PHYSICIAN COMPUTER NETWORK,                WISMER*MARTIN, INC.
INC.


By:   /s/ Carter S. Evans                  By:  /s/ Paul M. Antinori
       President                           Vice President


VERSYSS INCORPORATED                       PCN HP VENTURE CORP.



By:  /s/ Paul M. Antinori                  By:  /s/ Paul M. Antinori

Vice President                             Vice President



INTEGRATED HEALTH SYSTEMS, INC.            MEDICAL MANAGER HEALTH
                                           SYSTEMS, INC.



By:  /s/ Paul M. Antinori                  By:   /s/ John P. Sessions
Vice President


MEDICAL MANAGER
CORPORATION


By:  /s/ John Kang





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