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                                                                   Exhibit 10.51

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                     AMENDED AND RESTATED CREDIT AGREEMENT

     This Amended and Restated Credit Agreement, dated as of December 21, 1998,
is among PLATINUM technology, inc., the Lenders signatory hereto and American
National Bank and Trust Company of Chicago, as Agent.  The parties hereto agree
as follows:

                                   ARTICLE I

                                  DEFINITIONS
                                  -----------
     As used in this Agreement:

     "Acquisition" means any transaction, or any series of related transactions,
consummated on or after the date of this Agreement, by which the Borrower or any
of its Subsidiaries (i) acquires any going business or all or substantially all
of the assets of any partnership, association, entity, firm, corporation or
limited liability company, or division thereof, whether through purchase of
assets, merger or otherwise or (ii) directly or indirectly acquires (in one
transaction or as the most recent transaction in a series of transactions) at
least a majority (in number of votes) of the securities of a corporation which
have ordinary voting power for the election of directors (other than securities
having such power only by reason of the happening of a contingency) or a
majority (by percentage or voting power) of the outstanding ownership interests
of a partnership or limited liability company.

     "Advance" means a borrowing hereunder (or conversion or continuation
thereof) consisting of the aggregate amount of the several Loans made on the
same Borrowing Date (or date of conversion or continuation) by the Lenders to
the Borrower of the same Type and, in the case of Eurodollar Advances, for the
same Eurodollar Interest Period.

     "Affiliate" means each of the following: (i) any other "Person" (as defined
below in this Article) that directly or indirectly controls, is controlled by,
or is under direct or indirect common control with, such Person; and (ii) any
other Person that is or becomes a general partner or joint venturer in such
Person.  For purposes of this Agreement, a Person shall "control" another Person
if the controlling Person either owns fifty percent (50%) or more of any class
of voting securities (or other ownership interests) of the controlled Person, or
possesses, directly or indirectly, the power to direct or cause the direction of
management and policies of the applicable Person, whether through ownership of
securities or other interests, by contract, trust or otherwise.  Each general
partner of a Person which is a partnership shall be deemed to have control of
such Person.
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     "Agent" means American National Bank and Trust Company of Chicago in its
capacity as agent for the Lenders pursuant to Article XI, and not in its
individual capacity as a Lender, and any successor Agent appointed pursuant to
Article XI.

     "Aggregate Commitment" means an amount in U.S. Dollars equal to the
aggregate of the Commitments of all the Lenders, as reduced from time to time
pursuant to the terms hereof.

     "Agreement" means this credit agreement, as it may be amended, restated, or
modified and in effect from time to time.

     "Alternate Base Rate" means, for any day, a rate of interest per annum
equal to the higher of (i) the Base Rate for such day and (ii) the sum of
Federal Funds Effective Rate for such day plus 1% per annum, changing when and
as the Alternate Base Rate changes.

     "Alternate Base Rate Advance" means an Advance which bears interest at the
Alternate Base Rate.

     "Alternate Base Rate Loan" means a Loan which bears interest at the
Alternate Base Rate.

     "ANB" means American National Bank and Trust Company of Chicago in its
individual capacity, and its successors.

     "Article" means an article of this Agreement unless another document is
specifically referenced.

     "Authorized Officer" means any one of the Senior Vice President, Tax and
Treasury (William Gecsey), Executive Vice President and Chief Financial Officer
(Michael P. Cullinane), and Senior Vice President and Corporate Controller
(Kenneth Mueller) of the Borrower, acting singly.

     "Available Commitment" means, at any time of determination, the Aggregate
Commitment minus the Facility Letter of Credit Obligations.
 
     "Base Rate" means a rate per annum announced publicly by ANB from time to
time as its "base rate" or "prime rate" which "base rate" or "prime rate" may
not necessarily be the lowest rate charged by ANB to any of its customers; such
Base Rate to change simultaneously with any change in such "base rate" or "prime
rate".

     "Borrower" means PLATINUM technology, inc., a Delaware corporation, and its
successors and assigns.

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     "Borrowing Date" means a date on which an Advance is made hereunder.

     "Borrowing Notice" is defined in Section 2.8.

     "Business Day" means (i) with respect to any borrowing, payment or rate
selection of Eurodollar Advances, a day (other than a Saturday or Sunday) on
which banks generally are open in Chicago and New York for the conduct of
substantially all of their commercial lending activities and on which dealings
in United States dollars are carried on in the London interbank market and (ii)
for all other purposes, a day (other than a Saturday or Sunday) on which banks
generally are open in Chicago for the conduct of substantially all of their
commercial lending activities.

     "Capitalized Lease" of a Person means any lease of Property by such Person
as lessee which would be capitalized on a balance sheet of such Person prepared
in accordance with GAAP.

     "Capitalized Lease Obligations" of a Person means the amount of the
obligations of such Person under Capitalized Leases which would be shown as a
liability on a balance sheet of such Person prepared in accordance with GAAP.

     "Capitalized Software" means at any date, the amount of the asset shown as
Purchased and Developed Software on a consolidated balance sheet of the Borrower
and its Subsidiaries prepared in accordance with GAAP.

     "Cash and Cash Equivalents" means the amount of the Borrower's and its
Subsidiaries' (i) cash, (ii) investments in direct obligations of the United
States government or any agency thereof, or obligations guaranteed by the United
States government or any agency thereof, (iii) investments in commercial paper
rated in the highest grade by a nationally recognized credit rating agency, (iv)
time deposits with, including certificates of deposit issued by, any office
located in the United States of any bank or trust company which is organized
under the laws of the United States or any state thereof and has capital,
surplus and undivided profits aggregating at least $100,000,000, and (v)
investments in corporate or municipal debt obligations rated "A" (or its
equivalent) or higher by a nationally recognized credit rating agency and
classified as cash or cash equivalents under GAAP, provided in each case that
such investment matures within one year from the date of acquisition thereof by
the Borrower or a Subsidiary.  The amount of all such investments shall be
calculated at the market value of such investment on the date of calculation.

     "Change in Control" is defined in Section 2.18.

     "Change in Control Notice" is defined in Section 2.18.

     "Charges" shall mean all national, federal, state, county, parish, city,
municipal or other Governmental Authority (as defined below in this Article)
taxes, levies, assessments, charges, liens, claims, fees or encumbrances
(including but not limited to 

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those imposed by the PBGC (as defined below in this Article), upon or related
to: (i) the ownership or use of any of Borrower's or a Subsidiary's assets,
whether fixed, personal or intangible; (ii) any of Borrower's or a Subsidiary's
payroll, income or gross receipts, (iii) the Obligations (as defined below in
this Article); or (iv) any other aspect of Borrower's or a Subsidiary's
business.

     "Code" means the Internal Revenue Code of 1986, as amended, reformed or
otherwise modified from time to time.

     "Collateral Shortfall Amount" is defined in Section 9.1.

     "Commercial Letter of Credit" means any Facility Letter of Credit issued
for the purpose of providing the principal payment mechanism in connection with
the purchase of goods by the Borrower in the ordinary course of business.

     "Commitment" means, for each Lender, the obligation of such Lender to make
Loans not exceeding the amount set forth opposite its signature below or as set
forth in any Notice of Assignment relating to any assignment that has become
effective pursuant to Section 13.3.2, as such amount may be modified from time
to time pursuant to the terms hereof.

     "Condemnation" is defined in Section 8.8.

     "Contingent Obligation" means any obligation of such Person which
guarantees or is intended to guarantee any Indebtedness (as defined below in
this Article), leases, dividends, distributions or other payment or performance
obligations (collectively "Primary Obligations") of any other Person (the
"Primary Obligor") in any manner, whether directly or indirectly.  The
Contingent Obligations of a Person shall include, without limitation, any
obligation of such Person, whether or not contingent: (i) to purchase any such
Primary Obligation or any property constituting direct or indirect security
therefor; (ii) to advance or supply funds to such Primary Obligor or the Person
to whom the Primary Obligor owes such Primary Obligation either (A) to purchase
or to pay any such Primary Obligation or (B) to maintain working capital or
equity capital of the Primary Obligor or otherwise to maintain the net worth or
solvency of the Primary Obligor; (iii) to purchase property, securities or
services primarily for the purpose of assuring the Person to whom any such
Primary Obligation is owed of the ability of the Primary Obligor to make payment
of such Primary Obligation; or (iv) otherwise to assure or hold harmless the
Person to whom such Primary Obligation is owed against loss in respect of such
Primary Obligation.  However, the term "Contingent Obligation" shall not include
(a) endorsements of instruments for deposit or collection in the ordinary course
of business; (b) Rate Hedging Obligations incurred in the ordinary course of
business for interest rate hedging purpose and not for speculation; (c)
repurchase obligations with respect to obligations of, or guaranteed by, the
United States government or any agency thereof; (d) ACH and wire transfer
obligations incurred in the ordinary course of business and on terms customary
in the industry; and (e) performance guarantees or other similar obligations
(but not involving any guaranty of collection of the Receivables) entered into
by the Borrower or a Material 

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Subsidiary in connection with, and on terms customary under, Qualified
Receivables Transactions. For purposes of this Agreement, the amount of any
Contingent Obligation shall be that amount which is equal to the stated or
determinable amount of the Primary Obligation in respect of which such
Contingent Obligation is made or, if not stated or determinable, the maximum
anticipated liability in respect of such Primary Obligation (assuming such
Person is required to perform thereunder), as reasonably determined by Lender.
The Person with such Contingent Obligation shall provide Agent and the Lenders
with such information, documents and instruments as they reasonably may request
in connection with the determination of the amount of such Contingent
Obligation.

     "Conversion/Continuation Notice" is defined in Section 2.9.

     "Controlled Group" means all members of a controlled group of corporations
and all trades or businesses (whether or not incorporated) under common control
which, together with the Borrower or any of its Subsidiaries, are treated as a
single employer under Section 414 of the Code.

     "Current Liabilities" means the current liabilities of the Borrower and its
Subsidiaries as calculated for the Borrower and its Subsidiaries on a
consolidated basis in accordance with GAAP.

     "Default" means an event described in Article VIII.

     "Defaulting Lender" means any Lender that (i) on any Borrowing Date fails
to make available to the Agent such Lender's Loans required to be made to the
Borrower on such Borrowing Date or (ii) shall not have made a payment to the
Issuer pursuant to Section 2.2.5(b). Once a Lender becomes a Defaulting Lender,
such Lender shall continue as a Defaulting Lender until such time as such
Defaulting Lender makes available to the Agent, the amount of such Defaulting
Lender's Loans and/or to the Issuer, such payments due to the Issuer pursuant to
2.2.5(b) together with all other amounts required to be paid to the Agent and/or
the Issuer pursuant to this Agreement.

     "Deferred Revenues" means the amount shown as Deferred Maintenance -
Current and Long-Term on a consolidated balance sheet of the Borrower and its
Subsidiaries prepared in accordance with GAAP.

     "Environmental Affiliate" of a Person means any other Person whose
liability for any Environmental Claim (as defined below in this Article) such
Person has or may have retained, assumed or otherwise become liable for
(contingently or otherwise), whether contractually, by operation of law or
equity, or otherwise.
 
     "Environmental Approvals" means any permit, license, approval, ruling,
variance, exemption or other authorization required under applicable
Environmental Laws (as defined below in this Article).
 
     "Environmental Claim" means, with respect to any Person, any notice, claim,

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demand or similar communication (written or oral) delivered to such Person by
any other Person, alleging potential liability which reasonably could involve,
in the aggregate, $15,000,000 or more, for investigatory costs, cleanup costs,
governmental response costs, natural resources damages, property damages,
personal injuries, fines or penalties arising out of, based on or resulting
from: (i) the presence or release into the environment of any Material of
Environmental Concern (as defined below in this Article), at any location,
whether or not owned by the Person subject to such claim or (ii) circumstances,
facts or events, which individually, collectively, or with notice, lapse of time
or both, currently or in the future will form the basis of any violation or
alleged violation of any Environmental Law.

     "Environmental Laws" means all federal, state, provincial, local and
foreign laws, rules, decisions, regulations, ordinances, judgements, orders,
decrees, plans, permits, injunctions, grants, concessions, franchises, licenses,
agreements and other restrictions of any Governmental Authority, which relate to
pollution, protection of human health or protection of the environment (such as
but not limited to ambient air, surface water, ground water, land surface or
subsurface strata), including without limitation, laws and regulations relating
to emissions, discharges, releases or threatened releases of Materials of
Environmental Concern, or otherwise relating to the manufacture, processing,
distribution, use, treatment, storage, disposal, transport, handling, clean-up
or other remediation of Materials of Environmental Concern.

     "ERISA" means the Employee Retirement Income Security Act of l974, as
amended from time to time, and any rule or regulation issued thereunder.

     "Eurodollar Advance" means an Advance which bears interest at a Eurodollar
Rate.

     "Eurodollar Base Rate" means, with respect to a Eurodollar Advance for the
relevant Eurodollar Interest Period, the rate of interest per annum (rounded
upwards, if necessary, to the nearest 1/100 of 1%) at which deposits in U.S.
Dollars are being offered to prime banks in the London interbank market at 11:00
a.m., London time, two (2) Business Days prior to the first day of such
Eurodollar Interest Period for delivery on the first day of such Eurodollar
Interest Period for the number of months comprised therein and in an amount
approximately equal to the principal amount of the Eurodollar Loans requested
for such Eurodollar Interest Period, as determined by the Agent by reference to
the Bloomberg Financial Market's terminal screen entitled "Official BBA LIBOR
Fixings" or such other information vendor selected by the Agent for determining
British Bankers' Association Interest Settlement Rates for Dollar deposits.
Each determination of Eurodollar Base Rate made by the Agent shall be conclusive
and binding on the Borrower and the Lenders absent manifest error.

     "Eurodollar Interest Period" means, with respect to a Eurodollar Advance, a
period of one, two, three or six  months commencing on a Business Day selected
by the Borrower pursuant to this Agreement.  Such Eurodollar Interest Period
shall end on the 

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day which corresponds numerically to such date one, two, three or six months
thereafter, provided, however, that if there is no such numerically
corresponding day in such next, second, third or sixth succeeding month, such
Eurodollar Interest Period shall end on the last Business Day of such next,
second, third or sixth succeeding month. If a Eurodollar Interest Period would
otherwise end on a day which is not a Business Day, such Eurodollar Interest
Period shall end on the next succeeding Business Day, provided, however, that if
said next succeeding Business Day falls in a new calendar month, such Eurodollar
Interest Period shall end on the immediately preceding Business Day.

     "Eurodollar Loan" means a Loan which bears interest at a Eurodollar Rate.

     "Eurodollar Rate" means, with respect to a Eurodollar Advance for the
relevant Eurodollar Interest Period, the sum of (i) the quotient of (a) the
Eurodollar Base Rate applicable to such Eurodollar Interest Period, divided by
(b) one minus the Reserve Requirement if any (expressed as a decimal) applicable
to such Eurodollar Interest Period, plus (ii) 1.25% per annum.  The Eurodollar
Rate shall be rounded to the next higher multiple of 1/16 of 1% if the rate is
not such a multiple.

     "Exchange Rate" means with respect to any non-U.S. Dollar currency on any
date, the rate at which such currency may be exchanged into U.S. Dollars, as set
forth on such date on the relevant Reuters currency page at or about 11:00 A.M.,
London time, on such date.  In the event that such rate does not appear on any
Reuters currency page, the "Exchange Rate" with respect to such non-U.S. Dollar
currency shall be determined by reference to such other publicly available
service for displaying exchange rates as may be agreed upon by the Agent and the
Borrower or, in the absence of such agreement, such "Exchange Rates" shall
instead be the Agent's (or an Affiliate of the Agent's) spot rate of exchange in
the interbank market where its foreign currency exchange operations in respect
of such non-U.S. Dollar currency are then being conducted, at or about 10:00
A.M., local time, on such date for the purchase of U.S. Dollars with such non-
U.S. Dollar currency, for delivery two Business Days later; provided, that if at
the time of any such determination, no such spot rate can reasonably be quoted,
the Agent may use any reasonable method as it deems applicable to determine such
rate, and such determination shall be conclusive absent manifest error.

     "Facility Letter of Credit" means a Letter of Credit issued by the Issuer
pursuant to Section 2.2.

     "Facility Letter of Credit Obligations" means, as at the time of
determination thereof, an amount in U.S. Dollars equal to all liabilities,
whether actual or contingent, of the Borrower with respect to the Facility
Letters of Credit, including the sum of (a) Reimbursement Obligations and (b)
the aggregate undrawn face amount of the outstanding Facility Letters of Credit.

     "Facility Termination Date" means December 20, 1999 or such earlier date as
the Commitments may be terminated pursuant to Sections 2.5, 2.18 or 9.1.

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     "Federal Funds Effective Rate" means, for any day, an interest rate per
annum equal to the weighted average of the rates on overnight Federal funds
transactions with members of the Federal Reserve System arranged by Federal
funds brokers on such day, as published for such day (or, if such day is not a
Business Day, for the immediately preceding Business Day) by the Federal Reserve
Bank of New York, or, if such rate is not so published for any day which is a
Business Day, the average of the quotations at approximately 10:00 a.m. (Chicago
time) on such day on such transactions received by the Agent from three Federal
funds brokers of recognized standing selected by the Agent in its sole
discretion.

     "GAAP" means generally accepted accounting principles as in effect from
time to time.

     Governmental Authority Definitions.  The following terms shall have the
following meanings: (i) the term "United States" shall mean the United States
of America, and all geographical territories and subdivisions of the United
States of America; (ii) the term "Other Nations" shall mean each country,
principality or other independent territory, and each subdivision thereof, which
is not a part of the United States; (iii) the term "Supra-National Authority"
shall mean the European Union, the United Nations, the World Court, the
Commonwealth, the North Atlantic Treaty Organization, the General Agreement on
Tariffs and Trade and all other multinational authorities or treaties, and all
subdivisions and branches thereof, which have or may have from time to time
jurisdiction over any of the parties to or any performance under this Agreement
or any Loan Document (as defined below in this Article); and (iv) the term
"Governmental Authority" shall mean any subdivision, agency, branch, court,
administrative body, legislative body, judicial body, alternative dispute
resolution authority or other governmental institution of (A) the United States,
(B) any state, municipality, county, parish, subdivision or territory of the
United States, (C) all Other Nations, (D) any state, territory, county,
province, municipality, parish or other subdivision of any Other Nations, and
(E) all Supra-National Authorities.

     "Guarantor" means each of Platinum Technology UK Limited and Platinum
Technology GmbH and their successors and assigns and any other Person who
executes a Guaranty after the date of this Agreement pursuant to Section 6.11,
and "Guarantors" means more than one Guarantor.

     "Guaranties" means those certain Guaranties dated as of December 22, 1997
executed by the Guarantors in favor of the Agent, for the ratable benefit of the
Lenders, as they may be amended or modified and in effect from time to time and
any Guaranties executed hereafter in accordance with Section 6.11, and
"Guaranty" means any one of the Guaranties.

     "Hazardous Substances" means any chemical, solid, liquid, gas or other
substance having the characteristics identified in, listed under or designated
pursuant to any of the following: (i) the Comprehensive Environmental Response,
Compensation and Liability Act of 1980, as amended, 42 U.S.C.A. (S)9601(14), as
a "hazardous substance"; (ii) the Clean Water Act, 33 U.S.C.A. (S)1321(B)(2)(A),
as a "hazardous substance"; (iii) the Clean

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Water Act, 33 U.S.C.A. (S)(S)1317(a) and 1362(13), as a "toxic pollutant"; (iv)
Table 1 of Committee Print Numbered 95-30 of the Committee on Public Works and
Transportation of the United States House of Representatives as a "toxic
pollutant"; (v) the Clean Air Act, 42 U.S.C.A. (S)7412(a)(1), as a "hazardous
air pollutant"; (vi) the Toxic Substances Control Act, 15 U.S.C.A. (S)2606(f),
as an "imminently hazardous chemical substance or mixture"; (vii) the Resource,
Conservation and Recovery Act, 42 U.S.C.A. (S)(S)6903(5) and 6921, as a
"hazardous waste"; or (viii) any other or successor laws as presenting a danger
to the public health or welfare, to the environment, or otherwise requiring
special handling, collection, storage, treatment, disposal or transportation.
The term "Hazardous Substance" also shall include, without limitation: (i)
petroleum, crude oil, gasoline, natural gas, liquefied natural gas, synthetic
fuel, or other petroleum, oil or gas based products and by-products; (ii)
nuclear, radioactive or atomic substances, mixtures, wastes, compounds,
materials, elements, products or matters; or (iii) any other substance, mixture,
waste, compound, material, element, product or matter that presents an imminent
danger to the public health or welfare, or the environment, upon its release,
use, disposal, processing, storage or transportation.

     "Indebtedness" means, without duplication, each of the following, whether
primary, secondary, direct, indirect, absolute, contingent, fixed or otherwise,
currently or subsequently owing, due or payable, however evidenced, created,
incurred, acquired or owing, and however arising, whether by agreement (written
or oral), at law, in equity or otherwise: (i) all indebtedness of such Person
for borrowed money or for the deferred purchase price of property or services
(other than trade payables on terms of ninety (90) days or less incurred in the
ordinary course of business of such Person); (ii) all indebtedness of such
Person evidenced by a note, bond, debenture or similar instrument; (iii) the
principal component of all Capitalized Lease Obligations of such Person; (iv)
the face amount of all Letters of Credit issued for the account of such Person
and, without duplication, all unreimbursed amounts drawn under such Letters of
Credit; (v) all indebtedness of any other Person secured by any "Lien" (as
defined below in this Article) on any Property (as defined below in this
Article) such Person owns, whether or not such indebtedness has been assumed;
(vi) all Contingent Obligations of such Person; (vii) all payment obligations of
such Person under any interest rate protection agreement (including, without
limitation, any interest rate swaps, caps, floors, collars and similar
agreements) and currency swaps, exchanges, and forward contracts and similar
agreements; and (viii) liabilities in respect of unfunded vested benefits under
Plans and Multiemployer Plans covered by Title IV of ERISA.
 
     "Investment" of a Person means any loan, advance (other than commission,
travel and similar advances to officers and employees made in the ordinary
course of business), extension of credit or contribution of capital by such
Person; stocks, bonds, mutual funds, partnership interests, notes, debentures or
other securities owned by such Person; any deposit accounts and certificate of
deposit owned by such Person; and structured notes, derivative financial
instruments and other similar instruments or contracts owned by such Person.

     "Investment Securities" means, at any date, the amount of the assets shown
as

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Investment Securities on a consolidated balance sheet of the Borrower and its
Subsidiaries prepared in accordance with GAAP. The amount of all such
investments shall be calculated at the market value of such investment on the
date of calculation.

     "Issuer" means ANB and any successor issuer agreed to by the Borrower, the
Agent and the Required Lenders.

     "Lenders" means the lending institutions listed on the signature pages of
this Agreement and their respective successors and assigns.

     "Lending Installation" means, with respect to a Lender or the Agent, any
office, branch, subsidiary or affiliate of such Lender or the Agent.

     "Lender's Office" shall mean the office of a Lender located at its address
set forth in Section 8.3 below, or such other office as a Lender subsequently
may designate in writing as such to the Borrower.
 
     "Letter of Credit" of a Person means a letter of credit or similar
instrument which is issued upon the application of such Person or upon which
such Person is an account party or for which such Person is in any way liable.

     "Letter of Credit Collateral Account" is defined in Section 2.2.7.

     "Lien" means any lien (statutory or other), mortgage, pledge,
hypothecation, assignment, deposit arrangement, encumbrance or preference,
priority or other security agreement, preferential arrangement or interest of
any kind or nature whatsoever (including, without limitation, any conditional
sale, Capitalized Lease or other title retention agreement and the filing of any
financing statement or similar instrument under the Uniform Commercial Code or
comparable law of any Governmental Authority).

     "Loan" means, with respect to a Lender, such Lender's loan made pursuant to
Article II (or any conversion or continuation thereof).

     "Loan Documents" means this Agreement, the Notes and the other documents
and agreements contemplated hereby and executed by the Borrower in favor of the
Agent, the Issuer or any Lender.

     "Material Adverse Effect" means either an adverse claim, result or effect
impacting Borrower or a Material Subsidiary which involves a liability, cost, or
loss of $15,000,000 or more, individually or in the aggregate, or any other
material adverse effect upon any of the following: (i) the business, operations,
properties, assets, condition (financial or otherwise) or prospects of Borrower
and its consolidated Subsidiaries taken as a whole; (ii) the ability of Borrower
to perform, or of the Agent or the Lenders to enforce, any of the Obligations,
or (iii) the rights of the Agent or the Lenders under any of the Loan Documents.

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     "Material Subsidiary" means any Subsidiary which (i) represents more than
5% of the consolidated assets of the Borrower and Subsidiaries as would be shown
in the consolidated financial statements of the Borrower and its Subsidiaries as
at the beginning of the twelve-month period ending with the month in which such
determination is made, or (ii) is responsible for more than 5% of the
consolidated gross revenues (from operations) of the Borrower and its
Subsidiaries as reflected in the consolidated financial statement of the
Borrower and its Subsidiaries referred to in clause (i) above, all calculated in
accordance with GAAP.

     "Materials of Environmental Concern" means chemicals, pollutants,
contaminants, wastes, cleaning agents, toxic substances and all other Hazardous
Substances.

     "Maximum Funding Amount" means the sum of (a) with respect to outstanding
Receivables Investor Instruments that have fixed principal amounts, such
principal amounts, and (b) with respect to Receivables Investor Instruments that
have variable principal amounts, the Receivable Stated Amount thereof.

     "Multiemployer Plan" means a Plan maintained pursuant to a collective
bargaining agreement or any other arrangement to which the Borrower or any
member of the Controlled Group is a party to which more than one employer is
obligated to make contributions.

     "Note" means a promissory note, in substantially the form of Exhibit "A"
hereto, duly executed by the Borrower and payable to the order of a Lender in
the amount of its Commitment, including any amendment, modification, renewal or
replacement of such promissory note.

     "Notice of Assignment" is defined in Section 13.3.2.

     "Obligations" means all unpaid principal of and accrued and unpaid interest
on the Loans, all Facility Letter of Credit Obligations, all accrued and unpaid
fees and all expenses, reimbursements, indemnities and other obligations of the
Borrower to the Lenders or to any Lender, the Agent or any indemnified party
arising under the Loan Documents.

     "Participants" is defined in Section 13.2.1.

     "Payment Date" means the last day of each month.

     "PBGC" means the Pension Benefit Guaranty Corporation, or any successor
thereto.

     "Permitted Reorganization" means the reorganization of the Borrower and its
Subsidiaries on terms and conditions described in Schedule 7.4, provided that
such reorganization is effected pursuant to documentation and additional terms
and conditions (if any) reasonably acceptable to the Required Lenders, including
without limitation 

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guaranties of the Obligations by each Material Subsidiary substantially in the
form of Exhibit "F" hereto, along with appropriate resolutions and opinions of
counsel, if requested by the Agent.

     "Person" means any individual, sole proprietorship, partnership, joint
venture, union, unincorporated organization, firm, corporation, limited
liability company, cooperative, association, trust or other enterprise or
legally recognized entity, any Governmental Authority, and any agency,
subdivision, department or instrumentality of any Governmental Authority.

     "Plan" means an employee pension benefit plan which is covered by Title IV
of ERISA or subject to the minimum funding standards under Section 412 of the
Code as to which the Borrower or any member of the Controlled Group may have any
liability.

     "Prior Credit Agreement" means that certain Credit Agreement dated as of
December 22, 1997 among the Borrower, the Agent, and the Lenders defined
therein, as amended from time to time prior to the date hereof.

     "Property" of a Person means any and all property, whether real, personal,
tangible, intangible, or mixed, of such Person, or other assets owned, leased or
operated by such Person.

     "Pro Rata Share" means, for each Lender, the ratio such Lender's Commitment
bears to the Aggregate Commitment.
 
     "Purchaser Money Note" means a promissory note evidencing the obligation of
a Receivables Subsidiary to pay the purchase price for Receivables to Borrower
or any other Seller in connection with a Qualified Receivables Transaction,
which note shall be repaid from cash available to the maker of such note, other
than cash required to be held as reserves pursuant to Receivables Documents,
amounts paid in respect of interest, principal and other amounts owing under
Receivables Documents and amounts paid in connection with the purchase of newly
generated Receivables.

     "Purchasers" is defined in Section 13.3.1.

     "Qualified Receivables Transaction" means any transaction or series of
transactions that may be entered into by Borrower or any other Seller pursuant
to which Borrower or such other Seller may sell, convey or otherwise transfer to
a Receivables Subsidiary (in the case of a transfer by Borrower or any other
Seller) and any other Person (in the case of a transfer by a Receivables
Subsidiary), or may grant a security interest in, any Receivables Program Assets
(whether now existing or arising in the future); provided that:

          (a) no portion of the Indebtedness or any other obligations
(contingent or otherwise) of a Receivables Subsidiary or Special Purpose Vehicle
(i) is guaranteed by the Borrower or any other Seller (excluding guarantees of
obligations pursuant to 

                                       12
<PAGE>
 
Standard Securitization Undertakings), (ii) is recourse to or obligates Borrower
or any other Seller in any way other than pursuant to Standard Securitization
Undertakings or (iii) subjects any Property or asset of the Borrower or any
other Seller, directly or indirectly, contingently or otherwise, to the
satisfaction of obligations incurred in such transactions, other than pursuant
to Standard Securitization Undertakings,
 
          (b) neither the Borrower nor any other Seller has any material
contract, agreement, arrangement or understanding with a Receivables Subsidiary
or a Special Purpose Vehicle other than on terms no less favorable to the
Borrower or such Seller than those that might be obtained at the time from
Persons that are not Affiliates of the Borrower, other than fees payable in the
ordinary course of business in connection with servicing accounts receivable,
and

         (c) the Borrower and the other Sellers do not have any obligation to
maintain or preserve the financial condition of a Receivables Subsidiary or a
Special Purpose Vehicle or cause such entity to achieve certain levels of
operating results.

     "Quick Ratio" means the ratio of (i) the sum of Cash and Cash Equivalent,
plus Current and Non-Current Investment Securities, plus net trade accounts
receivable arising in the ordinary course of the Borrower's and its
Subsidiaries' businesses, to (ii) Current Liabilities minus the current portion
of Deferred Revenues, calculated on a consolidated basis for the Borrower and
its Subsidiaries in accordance with GAAP.

     "Receivable Stated Amount" means, with respect to a Receivables Investor
Instrument, the maximum amount of the funding commitment with respect thereto.
 
     "Receivables" means all rights of the Borrower or any other Seller to
payments (whether constituting accounts, chattel paper, instruments, general
intangibles or otherwise, and including the right to payment of any interest or
finance charges), which rights are identified in the accounting records of the
Borrower or such Seller as accounts receivable.
 
     "Receivables Documents" means (a) a receivables purchase agreement, pooling
and servicing agreement, credit agreement, agreements to acquire undivided
interests or other agreement to transfer, or create a security interest in,
Receivables Program Assets, in each case as amended, modified, supplemented or
restated and in effect from time to time entered into by the Borrower, another
Seller and/or a Receivables Subsidiary, and (b) each other instrument, agreement
and other document entered into by the Borrower, any other Seller or a
Receivables Subsidiary relating to the transactions contemplated by the items
referred to in clause (a) above, in each case as amended, modified, supplemented
or restated and in effect from time to time.
 
     "Receivables Investor Instruments" means trust certificates, purchased
interests or any other securities, instruments or agreements evidencing an
interest in the Receivables Program Assets held by a person other than the
Borrower or its Subsidiaries.

                                       13
<PAGE>
 
     "Receivables Program Assets" means (a) all Receivables which are described
as being transferred by the Borrower, another Seller or a Receivables Subsidiary
pursuant to the Receivables Documents, (b) all Receivables Related Assets, and
(c) all collections (including recoveries) and other proceeds of the assets
described in the foregoing clauses.
 
     "Receivables Program Obligations" means (a) notes, trust certificates,
undivided interests, partnership interests or other interests representing the
right to be paid a specified principal amount from the Receivables Program
Assets, and (b) related obligations of the Borrower, another Seller or a Special
Purpose Vehicle (including, without limitation, rights in respect of interest or
yield, breach of warranty claims and expense reimbursement and indemnity
provisions) and other Standard Securitization Undertakings.
 
     "Receivables Related Assets" means (a) any rights arising under the
documentation governing or relating to Receivables (including rights in respect
of Liens securing such Receivables and other credit support in respect of such
Receivables), (b) any proceeds of such Receivables and any lockboxes or accounts
in which such proceeds are deposited, (c) spread amounts and other similar
accounts (and any amounts on deposit therein) established in connection with a
Qualified Receivables Transaction, (d) any warranty, indemnity, dilution and
other intercompany claim arising out of Receivables Documents and (e) other
assets which are customarily transferred or in respect of which security
interests are customarily granted in connection with asset securitization
transactions involving accounts receivable.
 
     "Receivables Subsidiary" means a special purpose wholly-owned Subsidiary of
the Borrower or any Subsidiary of the Borrower created in connection with the
transactions contemplated by a Qualified Receivables Transaction, which
Subsidiary engages in no activities other than those incidental to such
Qualified Receivables Transaction and which is designated as a Receivables
Subsidiary by the Borrower's or such Subsidiary's, as the case may be, Board of
Directors.  Any such designation by such Board of Directors shall be evidenced
by providing to the Agent a certified copy of the resolutions of such Board of
Directors giving effect to such designation and an officer's certificate
certifying, to the best of such officer's knowledge and belief after consulting
with counsel, that such designation, and the transactions in which the
Receivables Subsidiary will engage, comply with the requirements of the
definition of Qualified Receivables Transaction.

     "Reimbursement Obligations" means, at any time, the aggregate of the
obligations of the Borrower to the Lenders and the Issuer in respect of all
unreimbursed payments or disbursements made by the Issuer and the Lenders under
or in respect of the Facility Letters of Credit.

     "Regulation D" means Regulation D of the Board of Governors of the Federal
Reserve System as from time to time in effect and any successor thereto or other
regulation or official interpretation of said Board of Governors relating to
reserve requirements applicable to member banks of the Federal Reserve System.
 
                                       14
<PAGE>
 
     "Regulation U" means Regulation U of the Board of Governors of the Federal
Reserve System as from time to time in effect and any successor or other
regulation or official interpretation of said Board of Governors relating to the
extension of credit by banks for the purpose of purchasing or carrying margin
stocks applicable to member banks of the Federal Reserve System.

     "Reportable Event" means a reportable event as defined in Section 4043 of
ERISA and the regulations issued under such section, with respect to a Plan,
excluding, however, such events as to which the PBGC by regulation waived the
requirement of Section 4043(a) of ERISA that it be notified within 30 days of
the occurrence of such event, provided, however, that a failure to meet the
minimum funding standard of Section 412 of the Code and of Section 302 of ERISA
shall be a Reportable Event regardless of the issuance of any such waiver of the
notice requirement in accordance with either Section 4043(a) of ERISA or Section
412(d) of the Code.

     "Required Lenders" means Lenders in the aggregate having at least 66 2/3%
of the Aggregate Commitment or, if the Aggregate Commitment has been terminated,
Lenders in the aggregate holding at least 66 2/3% of the aggregate unpaid
principal amount of the outstanding Advances.

     "Reserve Requirement" means, with respect to a Eurodollar Interest Period,
the maximum aggregate reserve requirement (including all basic, supplemental,
marginal and other reserves) which is imposed under Regulation D on Eurocurrency
liabilities.

     "Sale and Leaseback Transaction" means any sale or other transfer of
Property by any Person with the intent to lease such Property as lessee.

     "Section" means a numbered section of this Agreement, unless another
document is specifically referenced.

     "Seller" means the Borrower and any Subsidiary (other than a Receivables
Subsidiary) which is a party to a Receivables Documents.

     "Single Employer Plan" means a Plan maintained by the Borrower or any
member of the Controlled Group for employees of the Borrower or any member of
the Controlled Group.

     "Special Purpose Vehicle" means a trust, partnership or other special
purpose Person established by the Borrower and/or a Subsidiary to implement a
Qualified Receivables Transaction.

     "Standard Securitization Undertakings" means representations, warranties,
covenants and indemnities entered into by the Borrower or any other Seller which
are reasonably customary in accounts receivable securitization transactions, as
determined in good faith by the Agent.

                                       15
<PAGE>
 
     "Standby Letter of Credit" means any Facility Letter of Credit which is not
a Commercial Letter of Credit.

     "Stock" means all shares, options, interests, participations or other
equivalents (however designated) of or in a corporation, whether voting or non-
voting, including without limitation, common stock, warrants, preferred stock,
convertible debentures and all agreements, instruments and/or documents
convertible, in whole or in part, into any one or more or all of the preceding.

     "Subordinated Indebtedness" of a Person means any Indebtedness of such
Person the payment of which is subordinated to payment of the Obligations to the
written satisfaction of the Required Lenders and shall include, without
limitation, the Borrower's existing $115,000,000 6 3/4% Convertible Subordinated
Notes Due November 15, 2001 and $150,000,000 6.25% Convertible Subordinated
Notes due December 15, 2002 and any future subordinated Indebtedness issued by
the Borrower provided such subordinated Indebtedness has terms, including
without limitation, representations and warranties, covenants, defaults,
subordination provisions and remedies substantially the same as those in the
existing Subordinated Indebtedness.

     "Subsidiary" of a Person shall mean and include each of the following: (i)
any corporation 50% or more of whose stock of any class or classes is at the
time owned by such Person, directly and/or indirectly through one or more
Subsidiaries, trusts, nominees or otherwise; and (ii) any partnership,
association, joint venture or other entity in which such Person, directly and/or
indirectly through one or more Subsidiaries or otherwise as aforesaid, is either
a general partner, or has 50% or more of the equity or voting interest at the
time, including but not limited to 50% or more of the membership interests of a
limited liability company.
 
     "Substantial Portion" means, with respect to the Property of the Borrower
and its Subsidiaries, Property which (i) represents more than 5% of the
consolidated assets of the Borrower and its Subsidiaries as would be shown in
the consolidated financial statements of the Borrower and its Subsidiaries as at
the beginning of the twelve-month period ending with the month in which such
determination is made, or (ii) is responsible for more than 5% of the
consolidated net sales or of the consolidated net income of the Borrower and its
Subsidiaries as reflected in the financial statements referred to in clause (i)
above.

     "Tangible Net Worth" means at any date, the stockholder's equity of the
Borrower on a consolidated basis plus the outstanding principal amount of
Subordinated Indebtedness excluding any value for goodwill, trademarks, patents,
copyrights, Capitalized Software, organization expense, and other similar
intangible items, prepaid expenses and accounts due to Borrower from Affiliates,
all determined and computed as of such date in accordance with GAAP.

     "Total Liabilities" means all liabilities shown on a consolidated balance
sheet of the 

                                       16

<PAGE>
 
Borrower and its Subsidiaries prepared in accordance with GAAP less Deferred
Revenues and less Subordinated Debt.

     "Transaction Documents" means, collectively, the Loan Documents and the
Guaranties.

     "Transferee" is defined in Section 13.4.

     "Type" means, with respect to any Advance, its nature as an Alternate Base
Rate Advance or Eurodollar Advance.

     "Unfunded Liabilities" means the amount (if any) by which the present value
of all vested and unvested accrued benefits under all Single Employer Plans
exceeds the fair market value of all such Plan assets allocable to such
benefits, all determined as of the then most recent valuation date for such
Plans using PBGC actuarial assumptions for single employer plan terminations.

     "Unmatured Default" means an event which but for the lapse of time or the
giving of notice, or both, would constitute a Default.

     "U.S. Dollar Equivalent" means with respect to an amount denominated in any
currency other than U.S. Dollars, the equivalent in U.S. Dollars of such amount
determined at the Exchange Rate on the date of determination of such equivalent.

     "Wholly-Owned Subsidiary" of a Person means (i) any Subsidiary all of the
outstanding voting securities of which shall at the time be owned or controlled,
directly or indirectly, by such Person or one or more Wholly-Owned Subsidiaries
of such Person, or by such Person and one or more Wholly-Owned Subsidiaries of
such Person, or (ii) any partnership, limited liability company, association,
joint venture or similar business organization 100% of the ownership interests
having ordinary voting power of which shall at the time be so owned or
controlled.

     The foregoing definitions shall be equally applicable to both the singular
and plural forms of the defined terms.


                                  ARTICLE II

                                  THE CREDITS
                                  -----------

     2.1  Commitment  From and including the date of this Agreement and prior to
the Facility Termination Date, each Lender severally agrees, on the terms and
conditions set forth in this Agreement, to make Loans to the Borrower from time
to time in amounts not to exceed in the aggregate at any one time outstanding
the amount of its Available Commitment.  Subject to the terms of this Agreement,
the Borrower may borrow, repay and reborrow at any time prior to the Facility
Termination Date.  The Commitments to lend 

                                       17
<PAGE>
 
hereunder shall expire on the Facility Termination Date. Any outstanding
Advances and all other unpaid Obligations shall be paid in full by the Borrower
on the Facility Termination Date.

     2.2  Facility Letters of Credit.

          2.2.1  Obligation to Issue.  Subject to the terms and conditions of
this Agreement and in reliance upon the representations and warranties of the
Borrower herein set forth, the Issuer hereby agrees to issue for the account of
the Borrower through such of the Issuer's Lending Installations or Affiliates as
the Issuer and the Borrower may jointly agree, one or more Facility Letters of
Credit in accordance with this Section 2.2, from time to time during the period,
commencing on the date of this Agreement and ending on the Business Day prior to
the Facility Termination Date.  Facility Letters of Credit may be issued up to
the full amount of the Aggregate Commitment, provided that at no time may the
sum of (a) the Facility Letter of Credit Obligations plus (b) the total
aggregate unpaid balance of the Advances exceed the Aggregate Commitment.

          2.2.2  Conditions for Issuance.  In addition to being subject to the
satisfaction of the conditions contained in Section 4.1 and 4.2, the obligation
of the Issuer to issue any Facility Letter of Credit is subject to the
satisfaction in full of the following conditions:

          (i)   the aggregate maximum amount then available for drawing under
                Facility Letters of Credit issued by the Issuer, after giving
                effect to the Facility Letter of Credit requested hereunder,
                shall not exceed any limit imposed by law or regulation upon the
                Issuer;

          (ii)  after giving effect to the requested issuance of any Facility
                Letter of Credit, the sum of (a) the Facility Letter of Credit
                Obligations plus (b) the total aggregate unpaid principal
                balance of the Advances does not exceed the Aggregate
                Commitment.

          (iii) If the requested Facility Letter of Credit is in a currency
                other than U. S. Dollars, the Issuer agrees, in its sole
                discretion, to issue the Facility Letter of Credit in such
                currency and the Agent determines the U.S. Dollar Equivalent of
                the maximum amount available for drawing under such Facility
                Letter of Credit in order to determine the Available Commitment,
                which determination is subject to revision from time to time
                pursuant to Section 2.18.2.

          (iv)  the requested Facility Letter of Credit has an expiration not
                longer than twelve (12) months from the date of issuance.

          (v)   the Borrower shall have delivered to the Issuer at such times 
                and in such manner as the Issuer may reasonably prescribe such
                documents and materials as may be required pursuant to the terms

                                       18
<PAGE>
 
                of the proposed Facility Letter of Credit and the proposed
                Facility Letter of Credit shall be reasonably satisfactory to
                the Issuer as to form and content; and

          (vi)  as of the date of issuance, no order, judgment or decree of any
                court, arbitrator or governmental authority shall purport by its
                terms to enjoin or restrain the Issuer from issuing the Facility
                Letter of Credit and no law, rule or regulation applicable to
                the Issuer and no request or directive (whether or not having
                the force of law) from any governmental authority with
                jurisdiction over the Issuer shall prohibit or request that the
                Issuer refrain from the issuance of Facility Letters of Credit
                generally or the issuance of that Facility Letter of Credit.

          2.2.3  Procedure for Issuance of Facility Letters of Credit. (a) The
Borrower shall give the Issuer one Business Day's prior written notice of any
requested issuance of a Facility Letter of Credit under this Agreement (except
that, in lieu of such written notice, the Borrower may give the Issuer
telephonic notice of such request if confirmed in writing by delivery to the
Issuer (i) immediately of a telecopy of the written notice required hereunder
which has been signed by an Authorized Officer containing all information
required to be contained in such written notice and (ii) promptly (but in no
event later than the requested time of issuance) of a copy of the written notice
required hereunder containing the original signature of an Authorized Officer);
such notice shall be irrevocable and shall specify the stated amount of the
Facility Letter of Credit requested, the effective date (which day shall be a
Business Day) of issuance of such requested Facility Letter of Credit, the date
on which such requested Facility Letter of Credit is to expire (which date shall
be a Business Day and shall in no event be later than twelve (12) months from
the issuance date), the purpose for which such Facility Letter of Credit is to
be issued, and the Person for whose benefit the requested Facility Letter of
Credit is to be issued and the currency in which it is to be issued, if not U.S.
Dollars.  At the time such request is made, the Borrower shall also provide the
Issuer with a copy of the form of the Facility Letter of Credit it is requesting
be issued.  Such notice, to be effective, must be received by the Issuer not
later than 2:00 P.M. (Chicago time) or the time agreed upon by the Issuer and
the Borrower on the last Business Day on which notice can be given under this
Section 2.2.3(a). The Issuer shall within one Business Day of any requested
issuance of a Facility Letter of Credit forward to the Lenders a copy of the
Borrower's request for the issuance of a Facility Letter of Credit hereunder.

     (b) Subject to the terms and conditions of this Section 2.2.3 and provided
that the applicable conditions set forth in Sections 4.2 and 2.2.2 hereof have
been satisfied, the Issuer shall, on the requested date, issue a Facility Letter
of Credit on behalf of the Borrower in accordance with the Issuer's usual and
customary business practices.

     (c) The Issuer shall not extend or amend any Facility Letter of Credit
unless the requirements of this Section 2.2.3 are met as though a new Facility
Letter of Credit was being requested and issued.

                                       19
<PAGE>
 
          2.2.4  Reimbursement Obligations.

     (a) The Borrower agrees to pay to the Issuer, for the account of the
Lenders, as applicable, the amount of all Reimbursement Obligations, interest
and other amounts payable to the Issuer under or in connection with any Facility
Letter of Credit immediately when due, irrespective of any claim, set-off,
defense or other right which the Borrower or any Subsidiary may have at any time
against the Issuer or any other Person, under all circumstances, including
without limitation, any of the following circumstances:

          (i)   any lack of validity or enforceability of this Agreement or any
                of the other Loan Documents;

          (ii)  the existence of any claim, setoff, defense or other right which
                the Borrower or any Subsidiary may have at any time against a
                beneficiary named in a Facility Letter of Credit or any
                transferee of any Facility Letter of Credit (or any Person for
                whom any such transferee may be acting), the Issuer, any Lender,
                or any other Person, whether in connection with this Agreement,
                any Facility Letter of Credit, the transactions contemplated
                herein or any unrelated transactions (including any underlying
                transactions between the Borrower or any Subsidiary and the
                beneficiary named in any Facility Letter of Credit);

          (iii) any draft, certificate or any other document presented under
                the Facility Letter of Credit proving to be forged, fraudulent,
                invalid or insufficient in any respect or any statement therein
                being untrue or inaccurate in any respect;

          (iv)  the surrender or impairment of any security for the performance
                or observance of any of the terms of any of the Loan Documents;
                or

          (v)   the occurrence of any Default or Unmatured Default.

     (b) The Issuer shall promptly notify the Borrower of any draw under a
Facility Letter of Credit.  The Borrower shall reimburse the Issuer, for the
account of the Lenders, as applicable, for drawings under a Facility Letter of
Credit issued by it no later than the Business Day after the payment by the
Issuer.  Unless the Borrower shall have made such payment to the Issuer on such
date, the Borrower shall be deemed to have elected to fulfill its Reimbursement
Obligation by requesting a Loan in an amount equal to the amount paid by the
Issuer in respect of such drawing under the Letter of Credit.  No Borrowing
Notice from the Borrower shall be required and such Loan shall be disbursed by
the Lenders notwithstanding any failure to satisfy any conditions for
disbursement of a Loan set forth in Article IV hereof (including restatement of
all representations and warranties) and, to the extent of the Loans so
disbursed, the Reimbursement Obligation of the Borrower hereunder shall be
deemed satisfied.  If any Reimbursement Obligation with respect to any Facility
Letter of Credit is not paid by the Borrower and there is no

                                       20
<PAGE>
 
availability to make a Loan under Section 2.1, then the Reimbursement Obligation
shall bear interest from the date of the relevant drawing under the pertinent
Facility Letter of Credit until the fifth Business Day following such drawing at
the Alternate Base Rate in effect for each such day and thereafter until paid at
the interest rate for past due Alternate Base Rate Loans calculated in
accordance with Section 2.11.

          2.2.5  Participation. (a) Immediately upon issuance by the Issuer of
any Facility Letter of Credit in accordance with the procedures set forth in
Section 2.2.3, each Lender shall be deemed to have irrevocably and
unconditionally purchased and received from the Issuer (without recourse or
warranty to the Issuer) an undivided interest and participation equal to its Pro
Rata Share in such Facility Letter of Credit (including, without limitation, all
obligations of the Borrower with respect thereto) and any security therefor or
guaranty pertaining thereto; provided, that a Facility Letter of Credit issued
by the Issuer shall not be deemed to be a Facility Letter of Credit for purposes
of this Section 2.2.5 if the Issuer shall have received written notice from any
Lender on or before one Business Day prior to the date of its issuance of such
Facility Letter of Credit that one or more of the conditions contained in
Section 4.2 is not then satisfied, and, in the event the Issuer receives such a
notice, it shall have no further obligation to issue any Facility Letter of
Credit until such notice is withdrawn by that Lender or such condition has been
effectively waived in accordance with the provisions of this Agreement.

     (b) In the event that the Issuer makes any payment under any Facility
Letter of Credit and the Borrower shall not have repaid such amount to the
Issuer pursuant to Section 2.2.4, the Issuer shall promptly notify each Lender
of such failure, and each Lender shall promptly and unconditionally pay to the
Agent for the account of the Issuer the amount of such Lender's Pro Rata Share
of the unreimbursed amount of any such payment.  If any Lender fails to make
available to the Issuer, any amounts due to the Issuer pursuant to this Section
2.2.5(b), the Issuer shall be entitled to recover such amount, together with
interest thereon at the Federal Funds Effective Rate, for the first three
Business Days after such Lender receives such notice and thereafter, at the
Alternate Base Rate, payable (i) on demand, (ii) by setoff against any payments
made to the Issuer for the account of such Lender or (iii) by payment to the
Issuer by the Agent of amounts otherwise payable to such Lender under this
Agreement.  The failure of any Lender to make available to the Agent its Pro
Rata Share of the unreimbursed amount of any such payment shall not relieve any
other Lender of its obligation hereunder to make available to the Agent its Pro
Rata Share of the unreimbursed amount of any payment on the date such payment is
to be made, but no Lender shall be responsible for the failure of any other
Lender to make available to the Agent its Pro Rata Share of the unreimbursed
amount of any payment on the date such payment is to be made.

     (c) Whenever the Issuer receives a payment on account of a Reimbursement
Obligation, including any interest thereon, it shall pay, on the same Business
Day the payment is received if received before noon (Chicago time) and on the
next Business Day if received after noon (Chicago time), to each Lender which
has funded its participating interest therein, in immediately available funds,
an amount equal to such Lender's Pro Rata Share thereof.

                                       21
<PAGE>
 
     (d) The obligations of a Lender to make payments to the Issuer with respect
to a Facility Letter of Credit shall be absolute, unconditional and irrevocable,
not subject to any counterclaim, set-off, qualification or exception whatsoever
and shall be made in accordance with the terms and conditions of this Agreement
under all circumstances.

     (e) In the event any payment by the Borrower or any Subsidiary received by
the Issuer with respect to a Facility Letter of Credit and distributed to the
Lenders on account of their participations is thereafter set aside, avoided or
recovered from the Issuer or the Agent in connection with any receivership,
liquidation, reorganization or bankruptcy proceeding, each Lender which received
such distribution shall, upon demand by the Agent or the Issuer, contribute such
Lender's Pro Rata Share of the amount set aside, avoided or recovered together
with interest at the rate required to be paid by the Agent or the Issuer upon
the amount required to be repaid by it.

          2.2.6  Compensation for Facility Letters of Credit.  The Borrower
agrees to pay to the Issuer a letter of credit fee equal to (i) 1% per annum on
the average daily undrawn amount (calculated at the U.S. Dollar Equivalent) of
each outstanding Standby Letter of Credit for the period from and including the
date of issuance of such Standby Letter of Credit to and including the
expiration of such Standby Letter of Credit, payable annually in advance and
(ii) a fee to be negotiated between the Borrower and the Issuer at the time of
issuance of a Commercial Letter of Credit, such fee to be payable annually in
advance. The letter of credit fees shall be distributed to the Lenders on a
monthly basis in accordance with their respective Pro Rata Shares.  Such fees
are nonrefundable and the Borrower shall not be entitled to any rebate of any
portion thereof if a Facility Letter of Credit does not remain outstanding
through its stated expiry date or for any other reason.  The Borrower further
agrees to pay to the Issuer, on demand, such other customary and reasonable
administrative fees, charges and expenses of the Issuer in respect of the
issuance, negotiation, acceptance, amendment, transfer and payment of a Letter
of Credit or otherwise payable pursuant to the application and related
documentation under which such Facility Letter of Credit is issued in accordance
with a schedule of fees provided by the Issuer to the Borrower.

          2.2.7  Letter of Credit Collateral Account.  The Borrower hereby
agrees that it will, until the final expiration date of any Facility Letter of
Credit and thereafter as long as any amount is payable to the Issuer or the
Lenders in respect of any Facility Letter of Credit and whether or not this
Agreement is then in effect, maintain a special collateral account (the "Letter
of Credit Collateral Account") at the Agent's office at the address specified
pursuant to Article XIV, in the name of the Borrower but under the sole dominion
and control of the Agent, for the benefit of the Lenders and in which the
Borrower shall have no interest other than as set forth in Section 9.1.  If this
Agreement terminates and any Letters of Credit remain outstanding beyond the
Facility Termination Date, the Borrower shall, prior to the Facility Termination
Date, (i) deposit in the Letter of Credit Collateral Account for the benefit of
the Agent and the Lenders, an amount equal to 100% of the sum of the aggregate
maximum amount remaining available to be drawn under the remaining outstanding
Facility Letters of Credit (assuming compliance with all conditions

                                       22
<PAGE>
 
for drawing thereunder), (herein the "Collateral Amount"), or (ii) deliver to
the Agent for the benefit of the Lenders, assets of the type described in the
definition of "Cash and Cash Equivalents" having a face amount, which when
discounted at the Agent's customary advance rate for collateral of that type, is
at least equal to the Collateral Amount, plus such pledge agreements, financing
statements, control agreements and other documents requested by the Agent in
order to perfect a first and prior perfected security interest in such assets in
favor of the Agent and the Lenders or (iii) provide the Agent for the benefit of
the Lenders with a letter(s) of credit in an aggregate amount at least equal to
the Collateral Amount, such letter(s) of credit to be in form and substance, and
issued by banks, satisfactory to the Agent. Such Letter of Credit Collateral
Account shall be maintained by the Agent in accordance with the provisions of
Section 9.1. The Agent will invest any funds on deposit from time to time in the
Letter of Credit Collateral Account in assets of the type described in said
"Cash and Cash Equivalent" definition, as directed by the Borrower from time to
time.

          2.2.8  Nature of Obligations. (a) As among the Borrower, the Issuer
and the Lenders, the Borrower assumes all risks of the acts and omissions of, or
misuse of the Facility Letters of Credit by, the respective beneficiaries of the
Facility Letters of Credit.  In furtherance and not in limitation of the
foregoing, the Issuer and the Lenders shall not be responsible for (i) the
forms, validity, sufficiency, accuracy, genuineness or legal effect of any
document submitted by any party in connection with the application for and
issuance of any Facility Letter of Credit, even if it should in fact prove to be
in any or all respects invalid, insufficient, inaccurate, fraudulent or forged;
(ii) the validity or sufficiency of any instrument transferring or assigning or
purporting to transfer of assign a Facility Letter of Credit or the rights or
benefits thereunder or proceeds thereof, in whole or in part, which may prove to
be invalid or ineffective for any reason; (iii) failure of the beneficiary of a
Facility Letter of Credit to comply fully with conditions required in order to
draw upon such Facility Letter of Credit; (iv) errors, omissions, interruptions
or delays in transmission or delivery of any messages, by mail, cable,
telegraph, telex or otherwise; (v) errors in interpretation of technical terms;
(vi) misapplication by the beneficiary of a Facility Letter of Credit of the
proceeds of any drawing under such Facility Letter of Credit; and (viii) any
consequences arising from causes beyond the control of the Issuer or the Lenders
and to the extent not avoidable by the Issuer or the Lender by the observance of
reasonable commercial standards prevailing in the geographic area where the
Agent is located.  Notwithstanding the foregoing, nothing contained herein shall
be deemed to relieve the Issuer or any Lender from responsibility for any of the
foregoing consequences to the extent arising from the Issuer or such Lender's
willful or intentional breach of the terms hereof or its gross negligence.

     (b) In furtherance and extension and not in limitation of the specific
provisions hereinabove set forth, any action taken or omitted by the Issuer or
any Lender under or in connection with the Facility Letters of Credit or any
related certificates, if taken or omitted in good faith, shall not put the
Issuer or such Lender under any resulting liability to the Borrower or relieve
the Borrower of any of its obligations hereunder to the Issuer, the Agent or any
Lender.

                                       23
<PAGE>
 
     2.3  Ratable Loans.  Each Advance hereunder shall consist of Loans made
from the several Lenders ratably in proportion to the ratio that their
respective Commitments bear to the Aggregate Commitment.

     2.4  Types of Advances.  The Advances may be Alternate Base Rate Advances
or Eurodollar Advances, or a combination thereof, selected by the Borrower in
accordance with Sections 2.8 and 2.9.

     2.5  Commitment Fee; Reductions in Aggregate Commitment.  The Borrower
agrees to pay to the Agent for the account of each Lender a commitment fee of 20
basis points per annum on the daily unborrowed portion of such Lender's
Commitment from the date hereof to and including the Facility Termination Date,
payable on each Payment Date hereafter and on the Facility Termination Date.  In
calculating the unborrowed portion of a Lender's Commitment, the undrawn amount
of any outstanding Commercial Letters of Credit will not be considered usage,
but the undrawn amount of any outstanding Standby Letters of Credit will be
considered usage.

     The Borrower may permanently reduce the Aggregate Commitment in whole, or
in part ratably among the Lenders in integral multiples of $5,000,000 upon at
least ten Business Days' written notice to the Agent, which notice shall specify
the amount of any such reduction, provided, however, that the amount of the
Aggregate Commitment may not be reduced below the aggregate principal amount of
the outstanding Advances and Facility Letter of Credit Obligations.  All accrued
commitment fees shall be payable on the effective date of any termination of the
obligations of the Lenders to make Loans hereunder.

     2.6  Minimum Amount of Each Advance.  Each Eurodollar Advance shall be in
the minimum amount of $1,000,000 (and in multiples of $100,000 in excess
thereof), and each Alternate Base Rate Advance shall be in the minimum amount of
$100,000 (and in multiples of $10,000 in excess thereof), provided, however,
that any Alternate Base Rate Advance may be in the amount of the unused
Aggregate Commitment.

     2.7  Optional Principal Payments.  The Borrower may from time to time pay,
without penalty or premium, all outstanding Alternate Base Rate Advances, or, in
a minimum aggregate amount of $100,000 and in integral multiples of $10,000 in
excess thereof, any portion of the outstanding Alternate Base Rate Advances upon
two Business Days' prior notice to the Agent.  A Eurodollar Advance may be paid
prior to the last day of the applicable Eurodollar Interest Period only upon
payment of any amounts due under Section 3.4 in connection with such prepayment.

     2.8  Method of Selecting Types and Eurodollar Interest Periods for New
Advances.  The Borrower shall select the Type of Advance and, in the case of
each Eurodollar Advance, the Eurodollar Interest Period applicable to each
Advance from time to time.  The Borrower shall give the Agent irrevocable notice
(a "Borrowing Notice") not later than 10:00 a.m. (Chicago time) at least one
Business Day before the Borrowing Date of each Alternate Base Rate Advance, and
two Business Days before the Borrowing 

                                       24

<PAGE>
 
Date for each Eurodollar Advance, specifying:

          (i)   the Borrowing Date, which shall be a Business Day, of such
                Advance,

          (ii)  the aggregate amount of such Advance,

          (iii) the Type of Advance selected, and

          (iv)  in the case of each Eurodollar Advance, the Eurodollar Interest
                Period applicable thereto.

The Agent shall give each Lender notice of the Borrowing Notice on the Business
Day on which such Borrowing Notice was received by Agent.  Not later than noon
(Chicago time) on each Borrowing Date, each Lender shall make available its Loan
or Loans, in funds immediately available in Chicago to the Agent at its address
specified pursuant to Article XIV.  The Agent will make the funds so received
from the Lenders available to the Borrower at the Agent's aforesaid address.

     2.9  Conversion and Continuation of Outstanding Advances. Alternate Base
Rate Advances shall continue as Alternate Base Rate Advances unless and until
such Alternate Base Rate Advances are converted into Eurodollar Advances.  Each
Eurodollar Advance shall continue as a Eurodollar Advance until the end of the
then applicable Eurodollar Interest Period therefor, at which time such
Eurodollar Advance shall be automatically converted into a Alternate Base Rate
Advance unless the Borrower shall have given the Agent a Conversion/Continuation
Notice requesting that, at the end of such Eurodollar Interest Period, such
Eurodollar Advance either continue as a Eurodollar Advance for the same or
another Interest Period. Subject to the terms of Section 2.6, the Borrower may
elect from time to time to convert all or any part of an Advance of any Type
into any other Type or Types of Advances; provided that any conversion of any
Eurodollar Advance shall be made on, and only on, the last day of the Eurodollar
Interest Period applicable thereto.  The Borrower shall give the Agent
irrevocable notice (a "Conversion/Continuation Notice") of each conversion of an
Advance or continuation of a Eurodollar Advance not later than 10:00 a.m.
(Chicago time) at least one Business Day, in the case of a conversion into a
Alternate Base Rate Advance, or two Business Days, in the case of a conversion
into or continuation of a Eurodollar Advance, prior to the date of the requested
conversion or continuation, specifying:

          (i)   the requested date which shall be a Business Day, of such
                conversion or continuation,

          (ii)  the aggregate amount and Type of the Advance which is to be
                converted or continued, and

          (iii) the amount and Type(s) of Advance(s) into which such Advance is
                to be converted or continued and, in the case of a conversion
                into or 

                                       25
<PAGE>
 
               continuation of an Alternate Base Rate Advance, the duration of
               the Eurodollar Interest Period applicable thereto.

     2.10  Changes in Interest Rate, etc. Each Alternate Base Rate Advance shall
bear interest on the outstanding principal amount thereof, for each day from and
including the date such Advance is made or is converted from a Eurodollar
Advance into an Alternate Base Rate Advance pursuant to Section 2.9 to but
excluding the date it becomes due or is converted into a Eurodollar Advance
pursuant to Section 2.9 hereof, at a rate per annum equal to the Alternate Base
Rate for such day.  Changes in the rate of interest on that portion of any
Advance maintained as an Alternate Base Rate Advance will take effect
simultaneously with each change in the Alternate Base Rate.  Each Eurodollar
Advance shall bear interest on the outstanding principal amount thereof from and
including the first day of the Interest Period applicable thereto to (but not
including) the last day of such Eurodollar Interest Period at the interest rate
determined as applicable to such Eurodollar Advance.  No Eurodollar Interest
Period may end after the Facility Termination Date.

     2.11  Rates Applicable After Default.  Notwithstanding anything to the
contrary contained in Section 2.8 or 2.9, during the continuance of a Default or
Unmatured Default the Required Lenders may, at their option, by notice to the
Borrower (which notice may be revoked at the option of the Required Lenders
notwithstanding any provision of Section 9.2 requiring unanimous consent of the
Lenders to changes in interest rates), declare that no Advance may be made as,
converted into or continued as a Eurodollar Advance.  During the continuance of
a Default, the Required Lenders may, at their option, by notice to the Borrower
(which notice may be revoked at the option of the Required Lenders
notwithstanding any provision of Section 9.2 requiring unanimous consent of the
Lenders to changes in interest rates), declare that (i) each Eurodollar Advance
shall bear interest for the remainder of the applicable Eurodollar Interest
Period at the rate otherwise applicable to such Eurodollar Interest Period plus
2% per annum and (ii) each Alternate Base Rate Advance shall bear interest at a
rate per annum equal to the Alternate Base Rate plus 2% per annum.

     2.12  Method of Payment.  All payments of the Obligations hereunder shall 
be made, without setoff, deduction, or counterclaim, in immediately available
funds to the Agent at the Agent's address specified pursuant to Article XIV, or
at any other Lending Installation of the Agent specified in writing by the Agent
to the Borrower, by noon (local time) on the date when due and shall be applied
ratably by the Agent among the Lenders. Each payment delivered to the Agent for
the account of any Lender shall be delivered by the Agent to such Lender on the
same Business Day such payment is received if received prior to noon (Chicago
time) and on the next Business Day if received after noon (Chicago time), shall
be in the same type of funds that the Agent received and shall be delivered to
its address specified pursuant to Article XIV or at any Lending Installation
specified in a notice received by the Agent from such Lender. When directed by
telephonic, facsimile or written notice, from an Authorized Officer, the Agent
is hereby authorized to charge the account of the Borrower maintained with ANB
for each payment of principal, interest and fees as it becomes due hereunder.

                                       26
<PAGE>
 
     2.13  Notes; Telephonic Notices.  Each Lender is hereby authorized to 
record the principal amount of each of its Loans and each repayment on the
schedule attached to its Note, provided, however, that neither the failure to so
record nor any error in such recordation shall affect the Borrower's obligations
under such Note. The Borrower hereby authorizes the Lenders and the Agent to
extend, convert or continue Advances, effect selections of Types of Advances and
to transfer funds based on telephonic notices made by any Person or Persons the
Agent or any Lender in good faith believes to be acting on behalf of the
Borrower. The Borrower agrees to deliver promptly to the Agent a written
confirmation signed by an Authorized Officer, if such confirmation is requested
by the Agent or any Lender, of each telephonic notice. If the written
confirmation differs in any material respect from the action taken by the Agent
and the Lenders, the records of the Agent and the Lenders shall govern absent
manifest error.

     2.14  Interest Payment Dates; Interest and Fee Basis.  Interest accrued on
each Alternate Base Rate Advance shall be payable on each Payment Date,
commencing with the first such date to occur after the date hereof, on any date
on which the Alternate Base Rate Advance is prepaid, whether due to acceleration
or otherwise, and at maturity.  Interest accrued on that portion of the
outstanding principal amount of any Alternate Base Rate Advance converted into a
Eurodollar Advance on a day other than a Payment Date shall be payable on the
date of conversion.  Interest accrued on each Eurodollar Advance shall be
payable on the last day of its applicable Interest Period, on any date on which
the Eurodollar Advance is prepaid, whether by acceleration or otherwise, and at
maturity.  Interest accrued on each Eurodollar Advance having a Eurodollar
Interest Period longer than three months shall also be payable on the last day
of each three-month interval during such Eurodollar Interest Period.  Interest
and commitment fees shall be calculated for actual days elapsed on the basis of
a 360-day year.  Interest shall be payable for the day an Advance is made but
not for the day of any payment on the amount paid if payment is received prior
to noon (local time) at the place of payment.  If any payment of principal of or
interest on an Advance shall become due on a day which is not a Business Day,
such payment shall be made on the next succeeding Business Day and, in the case
of a principal payment, such extension of time shall be included in computing
interest in connection with such payment.

     2.15  Notification of Advances, Interest Rates, Prepayments and Commitment
Reductions.  Promptly after receipt thereof (and on the same Business Day as
received by the Agent with respect to Borrowing and Conversion/Continuation
Notices), the Agent will notify each Lender of the contents of each Aggregate
Commitment reduction notice, Borrowing Notice, Conversion/Continuation Notice,
and repayment notice received by it hereunder.  The Agent will notify each
Lender of the interest rate applicable to each Eurodollar Advance within two
Business Days of determination of such interest rate and will give each Lender
prompt notice of each change in the Alternate Base Rate.

     2.16  Lending Installations.  Each Lender may book its Loans at any Lending
Installation selected by such Lender and may change its Lending Installation
from time to time.  All terms of this Agreement shall apply to any such Lending
Installation and the 

                                       27
<PAGE>
 
Notes shall be deemed held by each Lender for the benefit of such Lending
Installation. Each Lender may, by written or telex notice to the Agent and the
Borrower, designate a Lending Installation through which Loans will be made by
it and for whose account Loan payments are to be made.

     2.17  Non-Receipt of Funds by the Agent.  Unless the Borrower or a Lender,
as the case may be, notifies the Agent prior to the date on which it is
scheduled to make payment to the Agent of (i) in the case of a Lender, the
proceeds of a Loan or (ii) in the case of the Borrower, a payment of principal,
interest or fees to the Agent for the account of the Lenders, that it does not
intend to make such payment, the Agent may assume that such payment has been
made.  The Agent may, but shall not be obligated to, make the amount of such
payment available to the intended recipient in reliance upon such assumption.
If such Lender or the Borrower, as the case may be, has not in fact made such
payment to the Agent, the recipient of such payment shall, on demand by the
Agent, repay to the Agent the amount so made available together with interest
thereon in respect of each day during the period commencing on the date such
amount was so made available by the Agent until the date the Agent recovers such
amount at a rate per annum equal to (i) in the case of payment by a Lender, the
Federal Funds Effective Rate for such day or (ii) in the case of payment by the
Borrower, the interest rate applicable to the relevant Loan.

     2.18  Mandatory Prepayments.

          2.18.1  Change in Control.  Within 30 Business Days prior to the
consummation of any transaction which would cause a Change in Control and which
is scheduled to close prior to the Facility Termination Date, the Borrower shall
notify (a "Change in Control Notice") the Agent of such expected transaction,
including within such Change in Control Notice the expected closing date of such
transaction, if known by the Borrower.  The Agent shall promptly deliver a copy
of such notice to each Lender.  Within 10 Business Days of receipt of such
Change in Control Notice by the Agent and the Lenders, the Required Lenders may,
at their option, give notice to the Agent and the Borrower that the Lenders
elect to terminate their Commitment hereunder.  Unless an earlier date is
otherwise agreed upon between the Borrower, the Agent and the Required Lenders,
the Aggregate Commitment shall terminate simultaneously with the closing of such
transaction and the Borrower shall repay at such time all outstanding Advances,
together with accrued interest thereon, any accrued fees with respect to the
Aggregate Commitment, any costs, losses or expenses incurred by the Lenders in
connection with such prepayment payable by the Borrower pursuant to Section 3.4,
provide cash collateral for all outstanding Facility Letters of Credit in
accordance with Section 2.18.4 and pay any other obligations of the Borrower to
the Lenders hereunder.

     For purposes of this Agreement, the term "Change in Control" shall mean
each of the following: (i) any Person or "group" (as such term is defined in
Section 13(d) of the Securities Act of 1934, as said Act is amended from time to
time), other than a Subsidiary or employee benefit plan of Borrower, which is
not as of the Effective Date the legal or beneficial owner of fifty percent
(50%) or more of the common Stock of the Borrower or 

                                       28
<PAGE>
 
voting securities of the Borrower representing fifty percent (50%) or more of
the combined voting power of all voting securities of the Borrower, becomes the
owner of fifty percent (50%) or more of such common Stock or voting securities
after the Effective Date; or (ii) approval by the stockholders of the Borrower
of any merger, reorganization or consolidation with respect to which the Persons
who were the respective legal and beneficial owners of the Borrower's Stock
immediately before such merger, reorganization or consolidation do not
thereafter beneficially and legally own, directly or indirectly, more than 50%
of both the common Stock and/or combined voting power of the securities of the
corporation or other entity which results from such merger, reorganization or
consolidation.

          2.18.2  Outstandings Exceed Aggregate Commitment.  If at any time for
any reason, the total of the then outstanding Advances plus the amount of the
U.S. Dollar Equivalent of all Facility Letter of Credit Obligations exceeds the
Aggregate Commitment, as then in effect, the Borrower shall immediately prepay
Advances and/or provide cash collateral in accordance with Section 2.18.4 in an
amount sufficient so that after giving effect thereto, the total of the
outstanding Advances plus the amount of the U.S. Dollar Equivalent of the
Facility Letter of Credit Obligations does not exceed the Aggregate Commitment.

          2.18.3  U.S. Dollar Equivalent.  Mandatory prepayments that would
otherwise be required pursuant to Section 2.18.2 solely as a result of
fluctuations in Exchange Rates from time to time shall only be required to be
made on the last Business Day of each month on the basis of the Exchange Rate in
effect on such Business Day.

          2.18.4  Letter of Credit Collateral Account.  Upon a mandatory
prepayment pursuant to this Section 2.18, the Borrower shall, upon request of
the Agent, deliver to the Agent security for the Facility Letters of Credit in
accordance with, and on the same terms and conditions as those set forth in,
Section 2.2.7, in an amount equal to, in the case of Section 2.18.1, 100% of the
sum of the aggregate maximum amount remaining available to be drawn under the
outstanding Facility Letters of Credit (assuming compliance with all conditions
for drawing thereunder) which will remain outstanding after the Facility
Termination Date and in the case of 2.18.2, an amount sufficient to cause the
sum of the outstanding Advances plus the U. S. Dollar Equivalent of the Facility
Letters of Credit not collateralized to not exceed the Aggregate Commitment.
Such Letter of Credit Collateral Account shall be maintained by the Agent in
accordance with the provisions of Section 9.1.

     2.19  Application of Payments with Respect to Defaulting Lenders.  No
payments of principal, interest or fees delivered to the Agent for the account
of any Defaulting Lender shall be delivered by the Agent to such Defaulting
Lender.  Instead, such payments shall, for so long as such Defaulting Lender
shall be a Defaulting Lender, be held by the Agent, and the Agent is hereby
authorized and directed by all parties hereto to hold such funds in escrow and
apply such funds as follows:
 
          (i)  First, if applicable, to any payments due to the Issuer pursuant
               to 

                                       29
<PAGE>
 
               Section 2.2.5(b); and

          (ii) Second, to Loans required to be made by such Defaulting Lender on
               any Borrowing Date to the extent such Defaulting Lender fails to
               make such Loans.

     Notwithstanding the foregoing, upon the termination of the Aggregate
Commitment and the payment and performance of all of the Obligations (other than
those owing to a Defaulting Lender), any funds then held in escrow by the Agent
pursuant to the preceding sentence shall be distributed to each Defaulting
Lender, pro rata in proportion to amounts that would be due to each Defaulting
Lender but for the fact that it is a Defaulting Lender.


                                  ARTICLE III

                            CHANGE IN CIRCUMSTANCES
                            -----------------------
     
     3.1  Yield Protection.  If, on or after the date of this Agreement, the
adoption of any law or any governmental or quasi-governmental rule, regulation,
policy, guideline or directive (whether or not having the force of law), or any
amendment to any existing law, rule, regulation, policy, guideline or directive
or any change in the interpretation thereof, by any governmental or quasi-
governmental authority, central bank, or comparable agency charged with the
interpretation or administration thereof, or compliance by any Lender or
applicable Lending Installation with any request or directive (whether or not
having the force of law) of any such authority, central bank or comparable
agency;

          (i)   subjects any Lender or any applicable Lending Installation to 
                any tax, duty, charge or withholding on or from payments due
                from the Borrower (excluding federal taxation of the overall net
                income of any Lender or applicable Lending Installation), or
                changes the basis of taxation of payments to any Lender in
                respect of its Loans or any Facility Letters of Credit or other
                amounts due it hereunder, or

          (ii)  imposes or increases or deems applicable any reserve, 
                assessment, insurance charge, special deposit or similar
                requirement against assets of, deposits with or for the account
                of, or credit extended by, any Lender or any applicable Lending
                Installation (other than reserves and assessments taken into
                account in determining the interest rate applicable to
                Eurodollar Advances), or

          (iii) imposes any other condition the result of which is to increase
                the cost to any Lender or any applicable Lending Installation of
                making, funding or maintaining loans or reduces any amount
                receivable by any Lender or any applicable Lending Installation
                in connection with loans, or requires any Lender or any
                applicable Lending Installation to make any payment calculated
                by reference to the amount of loans held or interest received by
                it, by an amount deemed material by

                                       30
<PAGE>
 
               such Lender,

and the result of any of the foregoing is to increase the cost to such Lender or
applicable Lending Installation of making or maintaining its Loans, Facility
Letters of Credit or Commitment or to reduce the return received by such Lender
or applicable Lending Installation in connection with its Loans, Facility
Letters of Credit or Commitment, then, within 15 days of demand by such Lender,
the Borrower shall pay such Lender that portion of such increased expense
incurred or reduction in an amount received which such Lender determines is
attributable to making, funding and maintaining its Loans, any Facility Letters
of Credit and its Commitment.  Notwithstanding the foregoing, no Lender shall be
permitted to request payment hereunder for any increased cost or reduction in
amount received which was incurred more than 180 days prior to the date payment
is requested.

     3.2  Changes in Capital Adequacy Regulations.  If a Lender determines the
amount of capital required or expected to be maintained by such Lender, any
Lending Installation of such Lender or any corporation controlling such Lender
is increased as a result of a Change, then, within 15 days of demand by such
Lender, the Borrower shall pay such Lender the amount necessary to compensate
for any shortfall in the rate of return on the portion of such increased capital
which such Lender determines is attributable to this Agreement, its Loans or its
issuance of or participation in Facility Letters of Credit or its obligation to
make Loans or issue or participate in Facility Letters of Credit hereunder
(after taking into account such Lender's policies as to capital adequacy).
"Change" means (i) any change after the date of this Agreement in the Risk-Based
Capital Guidelines or (ii) any adoption of or change in any other law,
governmental or quasi-governmental rule, regulation, policy, guideline,
interpretation, or directive (whether or not having the force of law) after the
date of this Agreement which affects the amount of capital required or expected
to be maintained by any Lender or any Lending Installation or any corporation
controlling any Lender.  "Risk-Based Capital Guidelines" means (i) the risk-
based capital guidelines in effect in the United States on the date of this
Agreement, including transition rules, and (ii) the corresponding capital
regulations promulgated by regulatory authorities outside the United States
implementing the July 1988 report of the Basle Committee on Banking Regulation
and Supervisory Practices Entitled "International Convergence of Capital
Measurements and Capital Standards," including transition rules, and any
amendments to such regulations adopted prior to the date of this Agreement.

     3.3  Availability of Types of Advances.  If any Lender determines that
maintenance of its Eurodollar Loans at a suitable Lending Installation would
violate any applicable law, rule, regulation, or directive, whether or not
having the force of law, or if the Required Lenders determine that (i) deposits
of a type and maturity appropriate to match fund Eurodollar Advances are not
available or (ii) the interest rate applicable to a Type of Advance does not
accurately reflect the cost of making or maintaining such Advance, then the
Agent shall suspend the availability of the affected Type of Advance and if
maintenance of such Eurodollar Loans would violate any applicable law, rule,
regulation or directive, whether or not having the force of law, require any
Eurodollar Advances of the affected Type to be repaid, subject to the payment of
any funding 

                                       31
<PAGE>
 
indemnification amounts required by Section 3.4.

     3.4  Funding Indemnification.  If any payment of a Eurodollar Advance
occurs on a date which is not the last day of the applicable Interest Period,
whether because of acceleration, prepayment or otherwise, or a Eurodollar
Advance is not made, converted, or continued on the date specified by the
Borrower for any reason other than default by the Lenders, the Borrower will
indemnify each Lender for any loss or cost incurred by it resulting therefrom,
including, without limitation, any loss or cost in liquidating or employing
deposits acquired to fund or maintain the Eurodollar Advance.

     3.5  Lender Statements; Limitations on Liability, Survival of Indemnity.
To the extent reasonably possible, each Lender shall designate an alternate
Lending Installation with respect to its Eurodollar Loans to reduce any
liability of the Borrower to such Lender under Sections 3.1 and 3.2 or to avoid
the unavailability of a Type of Advance under Section 3.3, so long as such
designation is not disadvantageous to such Lender. The Borrower shall not be
liable to a Lender under Sections 3.1 or 3.2 above for any such increased costs
whose imposition was caused solely by the willful or intentional breach by such
Lender of the terms of this Agreement or by such Lender's gross negligence or
willful misconduct.  Each Lender shall deliver a written statement of such
Lender to the Borrower (with a copy to the Agent) as to the amount due, if any,
under Section 3.1, 3.2 or 3.4.  Such written statement shall set forth in
reasonable detail the calculations upon which such Lender determined such amount
and shall be presumptively correct in the absence of manifest error.
Determination of amounts payable under such Sections in connection with a
Eurodollar Loan shall be calculated as though each Lender funded its Eurodollar
Loan through the purchase of a deposit of the type and maturity corresponding to
the deposit used as a reference in determining the Eurodollar applicable to such
Loan, whether in fact that is the case or not.  Unless otherwise provided
herein, the amount specified in the written statement of any Lender shall be
payable on demand after receipt by the Borrower of such written statement.  The
obligations of the Borrower under Sections 3.1, 3.2 and 3.4 shall survive
payment of the Obligations and termination of this Agreement.


                                   ARTICLE IV

                CONDITIONS PRECEDENT; WITHHOLDING TAX EXEMPTION
                -----------------------------------------------

     4.1  Initial Advance.  The Lenders shall not be required to make the
initial Advance (or the Issuer issue the initial Facility Letter of Credit)
hereunder unless the Borrower has paid to the Agent all fees due to the Agent
for its own account and the account of the Lenders under this Agreement and the
Borrower has furnished to the Agent with sufficient copies for the Lenders:

          (i)   Copies of the articles of incorporation (or other applicable
                charter document) of the Borrower and each Guarantor, together
                with all 

                                       32
<PAGE>
 
                 amendments, and a certificate of good standing for the Borrower
                 and each Guarantor, all certified by the appropriate
                 governmental officer in its jurisdiction of incorporation.

          (ii)   Copies, certified by the Secretary or Assistant Secretary of 
                 the Borrower and each Guarantor, of its by-laws and of its
                 Board of Directors' resolutions (and resolutions of other
                 bodies, if any are deemed necessary by counsel for any Lender)
                 authorizing the execution of the Loan Documents or the
                 Guaranties, as applicable.

          (iii)  An incumbency certificate, executed by the Secretary or
                 Assistant Secretary of the Borrower and each Guarantor, which
                 shall identify by name and title and bear the signature of the
                 officers of the Borrower or such Guarantor authorized to sign
                 the Loan Documents or the Guaranties, whichever is applicable,
                 and to make borrowings hereunder, upon which certificate the
                 Agent and the Lenders shall be entitled to rely until informed
                 of any change in writing by the Borrower or the applicable
                 Guarantor.

          (iv)   A certificate, signed by the chief financial officer of the
                 Borrower, stating that on the initial Borrowing Date and after
                 giving effect to the execution of this Agreement no Default or
                 Unmatured Default has occurred and is continuing and the
                 representations and warranties contained in Article V are true
                 and correct as of such date.

          (v)    A written opinion of the Borrower's counsel, addressed to the
                 Lenders in substantially the form of Exhibit "B" hereto.

          (vi)   Notes payable to the order of each of the Lenders.

          (vii)  Written money transfer instructions, in substantially the form
                 of Exhibit "E" hereto, addressed to the Agent and signed by an
                 Authorized Officer, together with such other related money
                 transfer authorizations as the Agent may have reasonably
                 requested.

          (viii) Consents to the amendments included herein executed by each of
                 the Guarantors.

          (ix)   Such other documents as any Lender or its counsel may have
                 reasonably requested.

     4.2  Each Advance.  The Lenders shall not be required to make any Advance
nor shall the Issuer be required to issue any Facility Letter of Credit (other
than an Advance that, after giving effect thereto and to the application of the
proceeds thereof, does not increase the aggregate amount of outstanding
Advances), unless on the applicable Borrowing Date or issuance date:

                                       33
<PAGE>
 
          (i)    There exists no Default or Unmatured Default.

          (ii)   The representations and warranties contained in Article V are
                 true and correct as of such Borrowing Date (or issuance date)
                 except to the extent any such representation or warranty is
                 stated to relate solely to an earlier date, in which case such
                 representation or warranty shall be true and correct on and as
                 of such earlier date.

          (iii)  All legal matters incident to the making of such Advance or the
                 issuance of a Facility Letter of Credit shall be satisfactory
                 to the Lenders and their counsel, or the Issuer or its counsel,
                 whichever is applicable.

     Each Borrowing Notice with respect to each such Advance and each request to
issue a Facility Letter of Credit shall constitute a representation and warranty
by the Borrower that the conditions contained in Sections 4.2(i) and (ii) have
been satisfied.  Any Lender or the Issuer may require a duly completed
compliance certificate in substantially the form of Exhibit "C" hereto as a
condition to making an Advance or issuing a Facility Letter of Credit.

     4.3  Withholding Tax Exemption. At least five Business Days prior to the
first date on which interest or fees are payable hereunder for the account of
any Lender, each Lender that is not incorporated under the laws of the United
States of America, or a state thereof, agrees that it will deliver to each of
the Borrower and the Agent two duly completed copies of United States Internal
Revenue Service Form 1001 or 4224, certifying in either case that such Lender is
entitled to receive payments under this Agreement and the Notes without
deduction or withholding of any United States federal income taxes.  Each Lender
which so delivers a Form 1001 or 4224 further undertakes to deliver to each of
the Borrower and the Agent two additional copies of such form (or a successor
form) on or before the date that such form expires (currently, three successive
calendar years for Form 1001 and one calendar year for Form 4224) or becomes
obsolete or after the occurrence of any event requiring a change in the most
recent forms so delivered by it, and such amendments thereto or extensions or
renewals thereof as may be reasonably requested by the Borrower or the Agent, in
each case certifying that such Lender is entitled to receive payments under this
Agreement and the Notes without deduction or withholding of any United States
federal income taxes, unless an event (including without limitation any change
in treaty, law or regulation) has occurred prior to the date on which any such
delivery would otherwise be required which renders all such forms inapplicable
or which would prevent such Lender from duly completing and delivering any such
form with respect to it and such Lender advises the Borrower and the Agent that
it is not capable of receiving payments without any deduction or withholding of
United States federal income tax.

                                   ARTICLE V

                                       34
<PAGE>
 
                         REPRESENTATIONS AND WARRANTIES
                         ------------------------------

     5.1  Inducement.  To induce Lenders to enter into this Agreement and to
make the Loans and to induce the Issuer to issue Facility Letters of Credit,
Borrower makes the representations and warranties set forth in Sections 5.2
through 5.21 of this Agreement, which representations and warranties shall
survive the execution and delivery of this Agreement and the Loan Documents and
the making of the Loans and the issuance of the Facility Letters of Credit,
until such time as Borrower has indefeasibly paid and performed all the
Obligations owed to Lenders, Issuer and the Agent.  For purposes of this
Agreement, the "best knowledge" of Borrower shall mean the knowledge which a
reasonable, prudent, experienced individual in similar business circumstances
would have after a diligent inquiry into the subject matter at issue.
 
     5.2  Status.  Borrower: (i) is a duly organized and validly existing
corporation in good standing under the laws of the State of Delaware; (ii) has
the power and authority to own its property and assets and to transact the
business in which it is engaged or presently proposes to engage; and (iii) has
duly qualified and is authorized to do business and is in good standing as a
foreign corporation in every jurisdiction of every Governmental Authority in
which it owns or leases real property or in which the nature of its business
requires it to be so qualified, including but not limited to the State of
Illinois unless the failure to be so qualified could not have a Material Adverse
Effect.  Each Material Subsidiary: (i) is a corporation or similar limited
liability entity duly organized or created and validly existing under the laws
of its jurisdiction of incorporation or creation; (ii) has the power and
authority to own its property and assets and to transact the business in which
it is engaged or presently purposes to engage and (iii) has duly qualified
and/or is authorized to do business and, to the extent applicable, is in good
standing, as a foreign corporation or otherwise, in every jurisdiction of every
Governmental Authority in which it owns or leases real property or in which the
nature of its business requires it to be so qualified or authorized unless the
failure to be so qualified or authorized would not have a Material Adverse
Effect.  Borrower and each Material Subsidiary have paid and will continue to
pay all taxes, Charges, levies and other fees associated with such
qualifications or authorizations to the extent failure to pay would have a
Material Adverse Effect, and shall maintain the same in full force and effect.
 
     5.3  Power and Authority.  Borrower has full power and authority to
execute, deliver and perform the terms and provisions of each of the Loan
Documents and the Notes.  Borrower has taken all necessary and proper corporate
or other action to authorize its execution, delivery and performance of and
under such Loan Documents.  Borrower duly has executed and delivered each such
Loan Document, and each such Loan Document constitutes Borrower's legal, valid
and binding obligations, enforceable against it in accordance with said Loan
Documents' terms, except as bankruptcy, insolvency, similar laws which affect
creditors' rights generally or general equity principles may limit such
enforceability.
 
     5.4  Securities Matters.  Borrower did not issue any of its Stock or other
securities of any type or nature in violation of any securities or similar laws
of any 

                                       35
<PAGE>
 
Governmental Authority, nor, to Borrower's best knowledge, did any of its
Subsidiaries issue any of its Stock or securities of any type or nature in
violation of any securities or similar laws of any Governmental Authority.
 
     5.5  No Violation.  Neither Borrower's execution, delivery or performance
of, nor compliance with the terms and provisions of the Loan Documents nor the
consummation by the Borrower of the transactions contemplated by the Loan
Documents, either currently or with the passage of time or granting of notice,
will: (i) contravene any applicable provision of any law, statute, rule,
regulation, order, writ, injunction or decree of any court or Governmental
Authority; (ii) conflict or be inconsistent with or result in any breach of, any
terms, covenants, conditions or provisions of, constitute a default under, or
result in the creation or imposition of (or the obligation to create or impose)
any Lien upon any property or assets of Borrower or any Material Subsidiary,
pursuant to the terms of any indenture, mortgage, deed of trust, agreement,
bond, note, insurance policy, license or other instrument to which Borrower or
any Material Subsidiary is a party or by which Borrower or any Material
Subsidiary or any property or assets of Borrower or any Material Subsidiary are
bound or to which Borrower or any Material Subsidiary may be subject; or (iii)
will contravene, constitute a violation of constitute a default under or in any
manner conflict with the Articles of Incorporation, bylaws or other
organizational documents of Borrower or any Material Subsidiary.
 
     5.6  Litigation.  Except as provided on Schedule 5.6, there are no actions,
claims, demand letters, investigations, suits or proceedings pending or, to
Borrower's best knowledge, threatened against or affecting Borrower or any of
its Subsidiaries: (i) with respect to any of the transactions contemplated by
the Agreement or any of the Loan Documents or (ii) which could, individually or
in the aggregate, have a Material Adverse Effect.  There are no actions, suits
or proceedings pending or to Borrower's best knowledge threatened against or
affecting Borrower or any Subsidiary or any of their assets or properties
regarding any Environmental Claims, Environmental Laws or Materials of
Environmental Concern.
 
     5.7  Margin Regulations.  Borrower has not used all or any portion of any
proceeds of the Loans to purchase or carry any Margin Stock (as defined in
Regulation U) or to extend credit to others for the purpose of purchasing or
carrying any Margin Stock.  Neither the making of the Loans, nor the issuance of
the Facility Letters of Credit nor the use of the proceeds from the Loans will
violate or be inconsistent with the provisions of Regulations G, T, U or X of
the Federal Reserve Board.
 
     5.8  Approvals. No order, consent, approval, license, authorization, or
validation of, or filing, recording or registration with, or exemption by, any
Person (whether or not such Person is a Governmental Authority) is required to
authorize, or is otherwise required in connection with: (i) Borrower's
execution, delivery and performance of any Loan Documents or the consummation by
the Borrower of any of the transactions contemplated by the Loan Documents; or
(ii) the legality, validity, binding effect or enforceability of any Loan
Document except those which Borrower duly made or obtained, and which remain in
full force and effect, as identified on Schedule 5.8 to this 

                                       36

<PAGE>
 
Agreement. All consents and approvals of, and filings and registrations with,
and all other actions by, any Person (whether or not such Person is a
Governmental Authority) required in order for the Borrower to make or consummate
all transactions contemplated by the Loan Documents have been obtained, given,
filed or taken and are or will be in full force and effect.
 
     5.9  Investment Company Act.  Borrower is not: (i) an "investment company"
or a company "controlled" by an "investment company", within the meaning of the
Investment Company Act of 1940, as amended; or (ii) subject to any other federal
or state law or regulation which purports to restrict or regulate its ability to
borrow money.
 
     5.10  True and Complete Disclosure.  All factual information furnished by 
or on behalf of Borrower or any Material Subsidiary to Agent and the Lenders on
or prior to the Effective Date, for purposes of or in connection with this
Agreement, the Loans, the Loan Documents and/or the transactions contemplated by
the Loan Documents is, and all other such factual information subsequently
furnished by or on behalf of Borrower or any of its Material Subsidiaries to
Agent and the Lenders will be, true, complete and accurate in all material
respects on the date as of which such information is dated and/or furnished, and
not incomplete by omitting to state any material fact necessary to make such
information not misleading at such time.  The preceding includes any
information, representations or warranties of or provided by or on behalf of
Borrower or any of its Material Subsidiaries in any schedule or exhibit to any
Loan Documents, as well as contained in the corpus of such Loan Documents, or
provided separately in conjunction with such Loan Documents.  The copies of all
documents or instruments Borrower and its Material Subsidiaries have provided to
Agent and the Lenders in conjunction with the Loan Documents and the
transactions contemplated by the Agreement are complete, accurate copies of the
items they purport to be.
 
     5.11  No Default.  Neither Borrower nor any Material Subsidiary is in
default under or with respect to any Loan Document or with respect to a material
term of any other material agreement, instrument or undertaking to which
Borrower or any Material Subsidiary is a party or by which Borrower, any
Material Subsidiary or any property of Borrower and its Material Subsidiaries is
bound.  No Default or Unmatured Default exists before or after giving effect to
any or all of the transactions contemplated by the Loan Documents.
 
     5.12  Licenses and Permits.  Borrower and its Material Subsidiaries have
obtained and hold in full force and effect, all franchises, licenses, permits,
certificates, registrations, authorizations, qualifications, accreditations,
easements, rights of way and other rights, consents and approvals (collectively
the "Permits") which are necessary for the operation of their business as
conducted prior to and will be conducted following the Effective Date, the
absence of which could have a Material Adverse Effect.  Borrower and its
Material Subsidiaries have fulfilled and performed all of their material
obligations under each such Permit. No event has occurred or condition or state
of facts exists which constitutes, or after notice or lapse of time or both,
would constitute, a material breach or default under any such Permit, or would
cause the revocation or termination of any such 

                                       37
<PAGE>
 
Permit and such default and/or revocation would have a Material Adverse Effect.
Neither Borrower or any Material Subsidiary has received notice of cancellation,
of default or of any material dispute concerning any such Permit. Each such
Permit is valid, subsisting and in full force and effect and to Borrower's best
knowledge will continue in full force and effect until after the Facility
Termination Date. Borrower and its Material Subsidiaries shall renew all such
Permits which expire while the Loans or any of the Obligations are outstanding,
to the extent failure to do so could have a Material Adverse Effect.
 
     5.13  Compliance with Laws.
 
          5.13.1  General. To Borrower's best knowledge, Borrower and each of
its Material Subsidiaries, are in compliance with all laws, rules, member
association rules, injunctions, ordinances, franchises and regulations
(including, without limitation, all Environmental Laws), and all orders,
judgments, writs and decrees of any Governmental Authority applicable to any of
them or any of their assets both prior to closing and giving effect to the
closing of the Loan Documents where failure to so comply would have a Material
Adverse Effect.  To Borrower's best knowledge, there have been no legislative or
regulatory proposals adopted or pending which could have a Material Adverse
Effect on Borrower's or its Material Subsidiaries or businesses.
 
          5.13.2  Export Assurance.  Irrespective of any disclosure Borrower or
any Subsidiary may make to Agent or the Lenders of any ultimate destination for
any software products licensed, sold or distributed by Borrower or any
Subsidiary, Borrower and its Subsidiaries shall not export or re-export,
directly or indirectly, any software products or any technical data derived
therefrom, without first obtaining all necessary approvals or required export
licenses to do so from the United States Department of Commerce or any agency of
the United States Government or of any Other Nation or Governmental Authority
having jurisdiction over such transaction, if required by an applicable statute,
regulation, order, judgment or decree.  Borrower represents, warrants and
covenants to Agent and the Lenders that Borrower and its Subsidiaries do not
intend to and shall not, without the prior written consent (if required) of the
"Office of Export Administration of the U.S. Department of Commerce",
Washington, D.C. 20230, transmit or ship any software products or modifications
thereto or products thereof, directly or indirectly to the Peoples Republic of
China or to any group Q, S, V, Y or Z country specified in Section 770 of the
Export Administration Regulations or any Supplements thereto issued by the U.S.
Department of Commerce, as amended, supplemented or replaced from time to time.
 
     5.14  No Threatened Insolvency.  Any Advance or Facility Letter of Credit
requested by Borrower or extended by Lenders or Issuer to or on behalf of
Borrower under this Agreement does not currently and to Borrower's best
knowledge will not in the future render Borrower insolvent.  Neither Borrower
nor any of Borrower's Material Subsidiaries are contemplating either the filing
of a petition under the Bankruptcy Code, or any other or similar law of any
Governmental Authority involving insolvency, or liquidation of all or a major
portion of their property.  No Person has filed or to Borrower's best knowledge
is contemplating filing any petition under any such law against Borrower or its
Material Subsidiaries.  Borrower and, to Borrower's best knowledge each of its

                                       38
<PAGE>
 
Material Subsidiaries, are now and at all times hereafter until and including
the date upon which all Obligations are indefeasibly repaid in full to Agent,
Issuer and the Lenders, solvent and generally paying their debts as they mature.
Borrower has capital sufficient to carry on its business and transactions and
all business and transactions in which it is about to engage.  Borrower now owns
and shall at all times during the term of this Agreement own property which, at
a fair valuation, is greater than the sum of its debts.
 
     5.15  Tax Returns.  To the best of its knowledge, Borrower itself has filed
and, each of its Material Subsidiaries has filed, on a timely basis all federal,
state, county and local income, excise, withholding, value added, property,
sales, use, franchise or other tax returns, declarations or reports which any
state, local, municipal, or federal authority of any Governmental Authority
required Borrower or its Material Subsidiaries to file on or before the
Effective Date.  All such tax returns, declarations and reports of Borrower, and
to Borrower's best knowledge its Material Subsidiaries, were true and correct,
and accurately reflected all taxable income and tax liabilities of Borrower and,
to Borrower's best knowledge its Material Subsidiaries, for all periods such
reports covered.  Borrower and to Borrower's best knowledge its Material
Subsidiaries have paid all taxes, interest and penalties, (if any), which became
due pursuant to such returns or pursuant to any assessment which has become
payable, except where payment is being contested in good faith and adequate
reserves have been provided on the Borrower's or such Material Subsidiary's
books and records.
 
     5.16  Financial Statements. Borrower has provided Agent and the Lenders 
with unaudited financial statements prepared by Borrower's management, which
cover the nine (9) month period ended September 30, 1998 (the "Unaudited
Financials"). The Unaudited Financials and all other financial information,
statements, warranties, projections, balance sheets, cash flow statements and
reports which Borrower provides to Agent and the Lenders shall be referred to
collectively in this Agreement as the "Financial Statements". The Financial
Statements which Borrower has delivered or will deliver to Agent and the Lenders
in the future will fully and fairly present the financial condition of Borrower
and its Subsidiaries, and the results of their business operations for the
respective periods indicated in such Financial Statements. The Financial
Statements were prepared in conformity with GAAP and are on a consolidated basis
with all of Borrower's Subsidiaries.
 
     5.17  Undisclosed Liabilities. The most recent ending date of the Unaudited
Financials shall be referred to in this Agreement as the "Balance Sheet Date".
Borrower and its Material Subsidiaries have no debts or liabilities of any type
or nature, whether accrued, absolute or contingent, determined or undetermined,
whether due or to become due (including without limitation unasserted claims
whether known or unknown, liabilities for taxes of any type, penalties, fees or
interest) other than those reflected in the Unaudited Financials dated as of the
Balance Sheet Date, those liabilities incurred in the ordinary course of
business since the Balance Sheet Date, and those liabilities which could not
have a Material Adverse Effect.  Neither Borrower nor any Material Subsidiary
have incurred any liability or debt which has or to Borrower's best knowledge
will have a Material Adverse Effect.  Except as identified on attached and
incorporated Schedule

                                       39
<PAGE>
 
5.17, since the Balance Sheet Date, neither Borrower nor its Material
Subsidiaries have experienced any Material Adverse Effect, and have not incurred
any material or unusual forward or long-term commitments. No fact or condition
exists, is contemplated or is to Borrower's best knowledge threatened which
might reasonably be expected to cause any such material adverse change in the
future.
 
     5.18  COBRA.  Except as would not be material: (i) Borrower and each
Material Subsidiary to which COBRA (as hereinafter defined) is applicable, has
provided each of their former employees with the right to continue his or her
respective insurance program with Borrower or applicable Material Subsidiary, in
compliance with all relevant provisions of the Code, as modified by the
Consolidated Omnibus Budget Reconciliation Act of 1985 ("COBRA"), including all
amendments to COBRA as contained in the Tax Reform Act of 1986, or any
subsequent legislation, (ii) there are no commitments, whether contractual in
nature or based upon any representation, warranty or other undertaking of
Borrower or such Material Subsidiary, which would preclude Borrower or such
Material Subsidiary from increasing the cost charged to individuals for
participating in any continuing medical benefit coverage, or (iii) except for
COBRA or as may be required under any state continuation coverage laws, Borrower
and such Material Subsidiaries have not established any employee benefit plan
which constitutes a "welfare benefit plan" within the meaning of Section 3(l) of
ERISA, providing for continuing benefits or coverage for any participant or
beneficiary of a participant after such participant's termination of employment
with Borrower or such Material Subsidiary.
 
     5.19  Intellectual Property.  Borrower directly or indirectly owns, is
licensed or otherwise possesses legally enforceable rights to use, all patents,
trademarks, trade names, service marks, copyrights and any applications
therefore, computer software products, and tangible or intangible property
information or material (excluding packaged commercially available software
programs generally available to the public which have been licensed to Borrower
or a Subsidiary pursuant to end-user licenses) ("Intellectual Property") that
are material to the business of Borrower and its Subsidiaries as currently
conducted by them.  Except as provided on Schedule 5.19, there is no claim
pending or, to Borrower's best knowledge, threatened, against Borrower or a
Subsidiary with respect to any alleged infringement of any trademark, service
mark, trade name, copyright, patent or trade secret owned by another person that
could reasonably be expected to have a Material Adverse Effect.  Except as
provided on Schedule 5.19, there is no claim or action pending or to Borrower's
best knowledge threatened concerning any Intellectual Property.
 
     5.20  ERISA.  As of the Effective Date, all Plans satisfy all minimum
funding standards of Section 302 of ERISA and Section 412 of the Code and no
material Reportable Event or material Termination Event exists concerning any
such Plan of Borrower or any member of Borrower's ERISA Controlled Group.
Neither Borrower nor any member of Borrower's ERISA Controlled Group has
incurred, or expects to incur, any withdrawal liability under Section 4201 of
ERISA to any Multiemployer Plan.
 
     5.21  Subsidiaries.  Schedule 5.21 hereto contains an accurate list of all
Subsidiaries of the Borrower as of the Effective Date, setting forth their
respective 

                                       40
<PAGE>
 
jurisdictions of incorporation and the percentage of their respective capital
stock owned by the Borrower or the other Subsidiaries. All of the issued and
outstanding shares of capital stock of such Subsidiaries have been duly
authorized and issued and are fully paid and non-assessable, to the extent these
terms have local meanings substantially the same as their meanings under the law
chosen by the parties as governing this Agreement.
 
 
                                   ARTICLE VI
                                        
                             AFFIRMATIVE COVENANTS
                             ---------------------
    
     6.1  Duration of Affirmative Covenants.  Borrower covenants and agrees that
on and after the Effective Date, and until Borrower indefeasibly has paid and/or
performed in full all the Obligations owed to the Agent, the Issuer and Lenders,
and Lenders and the Issuer no longer have any obligation to make Advances or
issue Facility Letters of Credit under this Agreement, and there are no
outstanding Advances or Facility Letters of Credit issued under this Agreement,
Borrower shall comply with the affirmative covenants set forth in Sections 6.2
through 6.11 below.
 
     6.2  Financial Covenants.
 
          6.2.1  Quick Ratio.  The Borrower will at all times maintain a Quick
Ratio of at least 1.0 to 1.0.

          6.2.2  Tangible Net Worth.  The Borrower will at all times maintain a
Tangible Net Worth of not less than the sum of (a) $275,000,000, (b) 50% of the
consolidated net income of the Borrower and its Subsidiaries (if positive) for
each fiscal quarter commencing with the quarter ending on March 31, 1999, as
reflected in financial statements furnished by the Borrower pursuant to Section
6.3.5, and (c) 100% of the proceeds of any Stock issued by the Borrower after
the date hereof (net of reasonable and customary costs and expenses of
issuance), in any public offering or any private placement to large
institutional investors to the extent such proceeds increase stockholders equity
of the Borrower on a consolidated basis as determined in accordance with GAAP.

          6.2.3  Total Liabilities to Tangible Net Worth.  The Borrower will not
permit the ratio of (a) Total Liabilities to (b) Tangible Net Worth to at any
time exceed 1.0 to 1.0.
 
     6.3  Information Covenants.
 
          6.3.1  General Obligation to Provide Notice.  Borrower will furnish to
the Agent and the Lenders written notice of each of the events and within the
time periods, referenced in Sections 6.3.2 through 6.3.7 below.
 
          6.3.2  Notice of Default, Liens or Litigation.  Promptly, and in any
event 

                                       41
<PAGE>
 
within five (5) Business Days after Borrower obtains knowledge of each of the
following, Borrower shall provide written notice of the same to the Agent and
the Lenders: (i) the occurrence of any Default or Unmatured Default, (ii) any
material Lien on, or any claim or charge asserted against any assets of Borrower
or a Material Subsidiary which, if reduced to judgment with respect to such
assets, would have a Material Adverse Effect on the business of Borrower or such
Material Subsidiary; (iii) any litigation or governmental proceeding pending or
threatened against Borrower or any Material Subsidiary which could, if adversely
determined, have a Material Adverse Effect on Borrower or such Material
Subsidiary; or (iv) any other event, act or condition which could have a
Material Adverse Effect on Borrower or a Material Subsidiary.
 
          6.3.3  ERISA Notices.  Borrower shall provide written notice of each
of the following ERISA matters to Agent and the Lenders within the time periods
provided:
 
          (i)  as soon as possible, and in any event within ten (10) days after
               Borrower or any member of its Controlled Group knows that:
 
               (A)  any material Termination Event with respect to a Plan has
                    occurred or will occur,
 
               (B)  any condition exists with respect to a Plan which presents a
                    material risk of termination of the Plan or imposition of a
                    material excise tax or other material liability on Borrower
                    or any member of its Controlled Group,
 
               (C)  Borrower or any member of its Controlled Group applies for a
                    waiver of the minimum funding standard under Section 412 of
                    the Code or Section 302 of ERISA,
 
               (D)  Borrower or any member of its Controlled Group has engaged
                    in a "prohibited transaction," as defined in Section 4975 of
                    the Code or as described in Section 406 of ERISA, that is
                    not exempt under Section 4975 of the Code and Section 408 of
                    ERISA, which will result in a material liability to Borrower
                    or any member of its ERISA Controlled Group,
 
               (E)  the aggregate present value of the Unfunded Liabilities
                    under all Borrower's Plans is in excess of fifteen million
                    dollars ($15,000,000),
 
               (F)  any condition exists with respect to a Multiemployer Plan
                    which presents a material risk of a partial or complete
                    withdrawal (as described in Section 4203 or 4205 of ERISA)
                    by Borrower or any member of its Controlled Group from a
                    Multiemployer Plan and which will result in a material
                    liability to Borrower or any member of its controlled Group,

                                       42
<PAGE>
 
               (G)  Borrower or any member of its Controlled Group is in
                    "default" (as defined in Section 4219(c) (5) of ERISA) with
                    respect to payments to a Multiemployer Plan, and such
                    default will result in liability to Borrower or a Subsidiary
                    in excess of $15,000,000,
 
               (H)  a Multiemployer Plan is in "reorganization" (as defined in
                    Section 418 of the Code or Section 4241 of ERISA) or is
                    "insolvent" (as defined in Section 4245 of ERISA),
 
               (I)  to the best knowledge of Borrower, the potential withdrawal
                    liability (as determined in accordance with Title IV of
                    ERISA) of Borrower and the members of its Controlled Group
                    with respect to all Multiemployer Plans is in excess of ten
                    million dollars ($15,000,000)
 
               (J)  there is an action brought against Borrower or any member of
                    its ERISA Controlled Group under Section 502 of ERISA with
                    respect to a failure to comply with Section 515 of ERISA;
                    and as soon as possible, and in any event within five (5)
                    Business Days after the receipt by Borrower or any member of
                    its Controlled Group of a demand letter from the PBGC
                    notifying Borrower or such member of its Controlled Group of
                    the PBGC's final decision finding liability and the date by
                    which such liability must be paid, Borrower shall provide
                    Lender with a copy of such letter, together with a
                    certificate of the chief financial officer of Borrower
                    setting forth the action which Borrower or such member of
                    its ERISA Controlled Group proposes to take with respect to
                    such matter.
 
          (ii)  In the case of a notice required under Sections 6.3.3(i)(A)
                through 6.3.3(i)(J) of this Agreement, Borrower shall deliver to
                the Agent and the Lenders, a certificate of an Authorized
                Officer, setting forth the details of each of the events
                described in clauses 6.3.3(i)(A) through 6.3.3(i)(J) above, as
                applicable, and the action which Borrower or the applicable
                member of its Controlled Group proposes to take with respect to
                such matter, together with a copy of any notice or filing from
                the PBGC or which may be required by the PBGC or other agency of
                the United States government with respect to each of the events
                described in clauses 6.3.3(i)(A) through 6.3.3(i)(J) above, as
                applicable.
 
          6.3.4  Environmental Notices.  Promptly, and in any event within five
(5) Business Days after the existence of any of the following conditions,
Borrower shall provide Agent and the Lenders with a certificate of an Authorized
Officer specifying in 

                                       43
<PAGE>
 
detail the nature of such condition and Borrower's or its Environmental
Affiliate's proposed response to any of the following: (i) the receipt by
Borrower or any of its Environmental Affiliates of any communication (written or
oral), whether from a Governmental Authority, citizens group, employee or
otherwise, that alleges that Borrower or such Environmental Affiliate is not in
compliance with any Environmental Laws if such allegation could potentially, in
the aggregate, involve Borrower or a Material Subsidiary incurring liability of
$15,000,000 or more; (ii) Borrower or any of its Environmental Affiliates
obtains actual knowledge that there exists any Environmental Claim pending or
threatened against Borrower or such Environmental Affiliate if such Claim could
potentially, in the aggregate, involve Borrower or a Material Subsidiary
incurring liability of $15,000,000 or more; (iii) any release, emission,
discharge or disposal of any Material of Environmental Concern that could form
the basis of any Environmental Claim against Borrower or any of its
Environmental Affiliates if such release, emission, discharge or disposal could
potentially, in the aggregate, involve Borrower or a Material Subsidiary
incurring liability of $15,000,000 or more. Borrower and each Material
Subsidiary shall comply fully with and assist any associated environmental
investigation and/or clean-up, and promptly complete any required remedial
actions.
 
          6.3.5  Financial Reporting.  The Borrower shall:

               (A)  As soon as available, but not later than 105 days after the
                    end of each fiscal year (commencing with the fiscal year
                    ending December 31, 1998) provide to Agent, with sufficient
                    copies for each Lender, a copy of the audited consolidated
                    balance sheet as of the end of such year and the
                    consolidated statements of income (from) operations,
                    shareholders' equity and cash flows for such year, setting
                    forth in each case in comparative form the figures for the
                    previous fiscal year, and accompanied by an unqualified
                    opinion of a nationally recognized independent accounting
                    firm ("Independent Auditor") which report shall state that
                    such consolidated financial statements present fairly the
                    financial position for the periods indicated in conformity
                    with GAAP and by any management letter prepared by said
                    Independent Auditor.  Such opinion shall not be qualified or
                    limited because of a restricted or limited examination by
                    the Independent Auditor of any material portion of the
                    Borrower's or any Subsidiary's records;
 
               (B)  As soon as available, but not later than 60 days after the
                    end of each of the first three fiscal quarters of each
                    fiscal year (commencing with the fiscal quarter ending March
                    31, 1999) provide to the Agent with sufficient copies for
                    each Lender, a copy of the Borrower's 10-Q financial
                    statements filed with the Securities and Exchange
                    Commission, and certified by its chief financial officer as
                    fairly presenting, in accordance with

                                       44
<PAGE>
 
                    GAAP (subject to ordinary, good faith year-end audit
                    adjustments), the financial position and the results of
                    operations of the Borrower and its Subsidiaries.
 
               (C)  Together with the financial statements required under
                    Sections 6.3.5(A) and (B), a compliance certificate in
                    substantially the form of "Exhibit "C" hereto signed by an
                    Authorized Officer showing the calculations necessary to
                    determine compliance with this Agreement, listing all
                    Material Subsidiaries as of such date and stating that no
                    Default or Unmatured Default exists, or if any Default or
                    Unmatured Default exists, stating the nature and status
                    thereof.
 
               Within 270 days after the close of each fiscal year, a statement
                    of the Unfunded Liabilities of each Single Employer Plan,
                    certified as correct by an actuary enrolled under ERISA, to
                    the extent such is required by ERISA or the regulations
                    promulgated thereunder.
 
               (E)  Such information (financial or otherwise) regarding each
                    Guarantor as the Agent may from time to time reasonably
                    request.
 
               (F)  Promptly upon the furnishing thereof to the shareholders of
                    the Borrower, copies of all financial statements, reports
                    and proxy statements so furnished.
 
               (G)  Promptly upon the filing thereof, copies of all registration
                    statements and annual, quarterly, monthly or other regular
                    reports which the Borrower or any of its Subsidiaries files
                    with the Securities and Exchange Commission.
 
               (H)  Such other information (including non-financial information)
                    as the Agent or any Lender may from time to time reasonably
                    request.
 
          6.3.6  Other Defaults.  Immediately upon the occurrence of any of the
following events, Borrower shall provide Agent and the Lenders with written
notice, in reasonable detail and with such supporting documentation as is
necessary for Agent and the Lenders to evaluate accurately the same: any default
by Borrower or a Material Subsidiary under any evidence of Indebtedness,
indenture, mortgage, note, security interest or other material obligation of
Borrower or a Material Subsidiary, or any other matter which has resulted in, or
might reasonably be expected to result in, a Material Adverse Effect.
 
          6.3.7  Other Information.  From time to time, Borrower shall provide

                                       45
<PAGE>
 
Lenders with such other information or documents (financial or otherwise) as
Agent.  reasonably may request, within five (5) Business Days of Agent's request
for the same.
 
     6.4  Books, Records and Inspections.  Borrower shall keep, for itself and
its Subsidiaries, proper books of record and account, in which Borrower shall,
and shall cause each Subsidiary to, make full, true and correct entries, in
conformity with GAAP and all requirements of law, of all dealings and
transactions in relation to its business, and its activities including but not
limited to dealings or transactions between or among Borrower and its
Subsidiaries.  Subject to Section 10.12, Borrower shall, and shall cause each
Subsidiary to, permit officers and designated representatives of the Agent and
the Lenders (including, without limitation, internal or external auditors of the
Agent or any Lender) to visit and inspect any of the properties of Borrower or
its Subsidiaries and to examine the books of record and account of Borrower or
its Subsidiaries, to review and/or audit the books and records of Borrower or
its Subsidiaries, to review the work papers of Borrower's independent certified
public accountants, make copies or abstracts of any of the preceding, and to
discuss the affairs, finances and accounts of Borrower or its Subsidiaries with,
and be advised as to the same by, the officers and independent accountants of
Borrower and its Subsidiaries, all upon reasonable notice and at such reasonable
times as the Agent or the Lenders may desire, provided that, so long as no
Default or Unmatured Default has occurred, each Lender and the Agent may conduct
such inspections no more than once in any calendar year at such Agent's or
Lender's own cost.  However, following the occurrence of a Default or Unmatured
Default, the Agent and the Lenders may take any actions authorized under this
Section as often as they desire, at Borrower's sole cost.  By this provision,
Borrower irrevocably authorizes all its and its Subsidiaries' officers and
accountants to discuss said finances and affairs with the Agent and the Lenders.
 
     6.5  Maintenance of Insurance.  Borrower, shall, and shall cause each
Material Subsidiary to, at their own cost and expense, maintain with financially
sound and reputable insurance companies, insurance in at least such amounts and
against at least such risks as are customarily insured against by companies
engaged in the same or a similar businesses (including but not limited to
product liability insurance), which insurance shall in any event not provide for
less coverage or fewer risks than the insurance in effect on the Effective Date.
All such insurance shall be in such form, for such period, and written by an
insurance company with a Best's Rating of "A" or better.  Upon any Lender's
request, Borrower shall deliver promptly to Agent and the Lenders evidence of
Borrower's or a Subsidiary's payment of all premiums for any insurance
identified in this Section, as well as copies of the applicable policies and
certificates.  Lenders' acceptance of a policy in lesser amounts or risks does
not constitute and shall not constitute a waiver of the foregoing obligations.
Borrower shall notify the Agent and the Lenders immediately of any event or
occurrence causing a material loss or decline in value of Borrower's or a
Material Subsidiary's assets and the estimated (or actual if available) amount
of such loss or decline, and whether or not the same will be covered by
insurance.
 
     6.6  Taxes.  Borrower shall, and shall cause each Material Subsidiary to,
pay or 

                                       46

<PAGE>
 
cause to be paid when due, all taxes, Charges and assessments and all other
lawful claims which Borrower or its Material Subsidiaries are required to pay by
any Governmental Authority, except Borrower or a Material Subsidiary may contest
in good faith and by appropriate proceedings diligently conducted, so long as
Borrower or the applicable Material Subsidiary has established adequate reserves
with respect to such contest, in accordance with GAAP.
 
     6.7  Franchises and Intellectual Property.  Borrower shall, and shall cause
each Subsidiary to, do or cause to be done all things necessary to preserve and
keep in full force and effect its corporate existence and to the extent
applicable, its status in good standing as a foreign corporation, and all
respective patents, trademarks, service marks, trade names, copyrights,
franchises, licenses, other Intellectual Property, permits, certificates,
authorizations, qualifications, easements, rights of way and other rights,
consents and approvals necessary in the conduct of its business except where
failure to so maintain or preserve would not have a Material Adverse Effect.
 
     6.8  Compliance with Law.  Borrower shall comply and shall cause all its
Material Subsidiaries to comply in all material respects with all applicable
laws, rules, statutes, regulations, decrees and orders of, and all applicable
restrictions imposed by, all Governmental Authorities, in respect of the conduct
of their businesses and the ownership of their properties, including, without
limitation, all Environmental Laws, ERISA laws, COBRA and the Fair Labor
Standards Act, as amended, except where failure to so comply would not have a
Material Adverse Effect.
 
     6.9  Performance of Obligations.  Borrower shall perform and shall cause
each of its Material Subsidiaries to perform all of their obligations under the
terms of each, mortgage, indenture, security agreement, debt instrument, lease,
undertaking and contract by which it or any of its properties or any of its
Material Subsidiaries are bound or to which it is a party, including but not
limited to each of the Loan Documents, except with respect to immaterial
obligations under documents other than the Loan Documents, and unless the
failure to perform any such obligation could not reasonably be expected to have
a Material Adverse Effect.
 
     6.10  Maintenance of Properties.  The Borrower will, and will cause each
Material Subsidiary to, do all things necessary to maintain, preserve, protect
and keep its Property in good repair, working order and condition, and make all
necessary and proper repairs, renewals and replacements so that its business
carried on in connection therewith may be properly conducted at all times except
where failure to so maintain would not have a Material Adverse Effect.
 
     6.11  Additional Guarantors.  From time to time after the date of this
Agreement, the Borrower shall cause each Material Subsidiary which is not then a
Guarantor which is, or becomes, a Material Subsidiary, to execute and deliver to
the Agent for the ratable benefit of the Lenders, a guaranty in substantially
the form of Exhibit "F" hereto, along with appropriate resolutions and opinions
of counsel, if requested by the Agent.

                                       47
<PAGE>
 
                                   ARTICLE 7
                                        
                               NEGATIVE COVENANTS
                               ------------------

     7.1  Duration of Negative Covenants.  Borrower covenants and agrees that on
and after the Effective Date and until Borrower indefeasibly has paid and/or
performed in full all the Obligations owed to the Agent, the Issuer and the
Lenders and the Agent, the Issuer and the Lenders no longer have any obligation
to make Advances or issue Facility Letter of Credit under this Agreement, and no
Advances or Facility Letter of Credit issued under this Agreement are still
outstanding, Borrower shall comply with the negative covenants set forth in
Sections 7.2 through 7.14 below.
 
     7.2  Indebtedness and Contingent Obligations.  Without the prior written
consent of the Required Lenders, Borrower shall not, nor shall it permit any
Material Subsidiary to, create, incur, assume, suffer to exist or otherwise
become or remain directly or indirectly liable (including without limitation,
liability incurred as a general partner or joint venturer) with respect to any
Indebtedness or Contingent Obligations, other than: (i) Indebtedness under this
Agreement and under the other Loan Documents; (ii) Indebtedness outstanding on
the Effective Date and specifically disclosed on Schedule 7.2; (iii) Capitalized
Lease Obligations which, in the aggregate, have a net present value (as
determined in accordance with GAAP) of all future lease payment obligations that
is less than $15,000,000; (iv) other Contingent Obligations with respect to
obligations (other than Indebtedness) of Borrower's Material Subsidiaries,
provided that the amount of such Contingent Obligations, individually or in the
aggregate, does not exceed $15,000,000; (v) other Indebtedness and Contingent
Obligations the principal amount of which, individually or in the aggregate,
does not exceed $15,000,000; (vi) Subordinated Indebtedness which is unsecured
and other Indebtedness which is unsecured and which Borrower owes to Persons who
execute and deliver to Agent (in form and substance acceptable to the Agent and
the Required Lenders) subordination agreements subordinating their claims
against Borrower to the payment of the Obligations, (vii) indebtedness of any
Receivables Subsidiary to the Borrower or any other Seller under any Purchase
Money Notes in connection with Qualified Receivables transactions permitted
under clause (iv) of Section 7.5; (viii) Receivables Program Obligations
described under clause (a) of the definition of such term of Special Purpose
Vehicles, and Receivables Program Obligations described under clause (b) of the
definition of such term of the Borrower and the Consolidated Entities, provided
in each case such Receivables Program Obligations relate solely to Qualified
Receivables Transactions permitted under clause (iv) of Section 7.5, and (ix)
Contingent Obligations in respect of Receivables sold by the Borrower or any
Material Subsidiary with recourse as permitted in Section 7.5(iii)(b), or in
respect of receivables or installment payment agreements from customers of the
Borrower or any Material Subsidiary arising in connection with the sale or lease
of services, products, goods or merchandise by Borrower or any Material
Subsidiary to such customers, provided that such Contingent Obligations do not
exceed $100,000,000 in the aggregate outstanding at any time.

                                       48
<PAGE>
 
     7.3  Liens.  Without the prior, written consent of the Required Lenders,
Borrower shall not, nor shall it permit any Material Subsidiary to, create,
incur, assume or suffer to exist, directly or indirectly, any Lien on any of its
property now owned or subsequently acquired, other than: (i) Liens existing on
the Effective Date and specifically disclosed in Schedule 7.2 hereto; (ii) Liens
for taxes not yet due or which are being contested in good faith by appropriate
proceedings diligently conducted and with respect to which adequate reserves are
being maintained in accordance with GAAP; (iii) Liens (other than any Lien
imposed by ERISA or pursuant to any Environmental Law) incurred or deposits made
in the ordinary course of business in connection with workers compensation,
unemployment insurance and other types of social security; (iv) Liens imposed by
law, such as carriers', warehousemen's and mechanics' liens and other similar
liens arising in the ordinary course of business which secure payment of
obligations not more than 60 days past due or which are being contested in good
faith by appropriate proceedings and for which adequate reserves shall have been
set aside on its books; (v) Utility easements, building restrictions and such
other encumbrances or charges against real property as are of a nature generally
existing with respect to properties of a similar character and which do not in
any material way affect the marketability of the same or interfere with the use
thereof in the business of the Borrower or the Material Subsidiaries, (vi) Liens
incurred in connection with the sale of receivables pursuant to Section 7.5(iii)
provided such Lien applies only to the receivables being sold; and (v) the
customary interests of any Receivables Subsidiaries, Special Purpose Vehicles
and related collateral agents and trustees in Receivables Program Assets under
Qualified Receivables Transactions permitted under clause (iv) of Section 7.5.
 
     7.4  Restrictions on Fundamental Changes. Except for the Permitted
Reorganization, without the prior written consent of the Required Lenders,
Borrower shall not, nor shall it permit any Material Subsidiary to, directly,
indirectly, voluntarily or involuntarily: (i) enter into any merger,
consolidation, reorganization or other combination unless Borrower (in the case
of a merger, consolidation, reorganization, or other combination involving the
Borrower) is the survivor thereof or, in the case of a merger, consolidation,
reorganization, or other combination involving a Material Subsidiary, the
surviving entity is wholly-owned by the Borrower and any guaranty required by
Section 6.11 has been executed and delivered to the Agent, (ii) liquidate, wind-
up or dissolve (or suffer any termination, liquidation or dissolution); (iii)
discontinue or materially change its business; (iv) convey, lease, sell,
transfer, assign or otherwise dispose of all or any part of its business or
property, whether now existing or subsequently acquired, except as otherwise
permitted under Section 7.5 or (iv) create or divest of any Material Subsidiary
or any significant interest in any Material Subsidiary, if the same could have a
Material Adverse Effect. Neither Borrower nor any Material Subsidiary shall
amend its articles of incorporation, organizational documents, by-laws or
operating agreements (as the case may be), nor make any name change, from that
existing on the Effective Date, to the extent that it has a Material Adverse
Effect.  Nothing in this Section 7.4 shall prohibit the creation by the Borrower
and its Material Subsidiaries of Receivables Subsidiaries or the creation by
Receivables Subsidiaries of Special Purpose Vehicles, in each case solely in
connection with Qualified Receivables Transactions permitted under clause (iv)
of Section 7.5.

                                       49
<PAGE>
 
     7.5  Sale of Assets.  Without the prior written consent of the Required
Lenders, Borrower shall not, nor shall it permit any Material Subsidiary to,
directly or indirectly assign, pledge, hypothecate, encumber, grant a security
interest in, convey, lease, sell, transfer or otherwise dispose of (or agree to
do so at any future time), by sale, merger, consolidation, liquidation,
dissolution or otherwise, all or any Substantial Portion of its Property,
except: (i) sales and/or licenses of inventory in the ordinary course of
business; (ii) sales of equipment which are uneconomic, obsolete or no longer
useful in its business; (iii) sales of Receivables for cash provided such sales
are either (a) non-recourse to the Borrower or any Subsidiary or (b) with
recourse to the Borrower or a Material Subsidiary and the outstanding principal
amount of all such Receivables sold with recourse and outstanding at any time
does not exceed $100,000,000, (iv) sales pursuant to a Qualified Receivables
Transaction, and (v) any assignment, transfer, conveyance or other disposition
included as part of the Permitted Reorganization.
 
     7.6  Redemptions.  Without the prior written consent of the Required
Lenders, Borrower shall not redeem, retire, purchase or otherwise acquire,
directly or indirectly, any of its own shares of any class of Stock (or any
options or warrants issued with respect to its shares), or make any material
change in Borrower's capital structure or set aside any funds for any of the
foregoing purposes to the extent any of the foregoing could have a Material
Adverse Effect.
 
     7.7  Advances, Investments and Loans.  Without the prior written consent of
the Required Lenders, Borrower shall not, nor shall it permit any Material
Subsidiary to, make or suffer to exist any Investments, except that Borrower or
a Material Subsidiary shall be permitted: (i) to make advances to Wholly-Owned
Subsidiaries of Borrower so long as the same do not materially diminish, affect
or reduce the Agent and the Lenders' rights or ability to collect under this
Agreement; (ii) to establish and maintain accounts receivable and payable, if
created in the ordinary course of business and payable or dischargeable in
accordance with customary trade terms; (iii) to acquire and hold Cash and Cash
Equivalents; (iv) to make Acquisitions or Investments in unrelated Persons,
whether by acquisition of Stock, other equity interests, acquisition of assets
or investments in partnerships and joint ventures unless such Acquisition or
Investment results in a violation of Section 7.4; (v) to provide temporary
working capital financing to acquisition targets of Borrower and advances to
third party software developers (against reasonably anticipated future royalties
or time and materials costs) provided that such financing and/or advances shall
not exceed individually or in the aggregate Fifteen Million Dollars
($15,000,000) outstanding at any time and shall not materially diminish, affect
or reduce the Agent's or the Lender's rights or ability to collect under this
Agreement, (vi) to create Receivables Subsidiaries and Receivables Subsidiaries
shall be permitted to create Special Purpose Vehicles, (vii) to incur Standard
Securitization Undertakings, in each case solely in connection with Qualified
Receivables Transactions, (viii) to make loans or advances to Receivables
Subsidiaries evidenced by Purchase Money Notes in connection with Qualified
Receivables Transactions permitted under clause (iv) of Section 7.5 and (iv)
Investments included as part of the Permitted Reorganization.

                                       50
<PAGE>
 
     7.8  Transactions with Affiliates.  Except as may be required as part of
the Permitted Reorganization, Borrower shall not, nor shall it permit any
Subsidiary to, enter into any transaction with any Affiliate, officer, director,
stockholder, Subsidiary or employee of Borrower or a Material Subsidiary except
in the ordinary course of business and pursuant the reasonable requirements of
Borrower's or such Material Subsidiary's business, upon terms and conditions
which are fair and reasonable to Borrower or such Material Subsidiary and which
are not less favorable than obtainable at the time in a comparable arm's-length
transaction with a Person other than an Affiliate, provided, however, that
Borrower or any Subsidiary may enter into any such transaction with a Guarantor
(or, in the case of a Subsidiary, with the Borrower) if such transaction is
beneficial to the Borrower or such Subsidiary.
 
     7.9  Plans.  Borrower shall not, nor shall it permit any member of its
Controlled Group to, take any action which would cause the Plans to fail to
satisfy all minimum funding obligations under Section 412 of the Code.
 
     7.10  Sales and Leasebacks.  Borrower shall not, nor shall it permit any
Material Subsidiary to, become liable, directly or indirectly, with respect to
any lease, whether an operating lease or a Capitalized Lease, of any property
(whether real or personal or mixed) whether now owned or subsequently acquired:
(i) which Borrower or a Material Subsidiary directly or indirectly has sold or
transferred or is to sell or transfer to any other Person; or (ii) which
Borrower or a Material Subsidiary intends to use for substantially the same
purposes as any other property which has been or is to be sold or transferred by
Borrower or Material Subsidiary directly or indirectly to any other Person in
connection with such lease.
 
     7.11  Material of Environmental Concern.  Borrower and its Subsidiaries
shall not use in their businesses or operations, any products or by-products
which constitute, nor store or hold at any site or location at which they
conduct business or otherwise operate, any Hazardous Substances or Materials of
Environmental Concern unless Borrower or such Subsidiary strictly and fully
complies with all requirements of applicable Environmental Laws which require
the special handling, collection, storage, treatment, disposal or transportation
of such items.  Borrower and its Subsidiaries shall not release and shall not
permit the release of any Materials of Environmental Concern on, from or near
any location at which Borrower or its Subsidiaries conduct their businesses or
operations, nor in any way violate any Environmental Laws.
 
     7.12  Margin Stock.  Borrower shall not use, directly or indirectly, all or
any portion of the proceeds from the Advances, to purchase or carry any Margin
Stock or to extend credit to others for the purpose of purchasing or carrying
any Margin Stock.
 
     7.13  Subordinated Indebtedness.  The Borrower will not make any amendment
or modification to the indenture, note or other agreement evidencing or
governing any Subordinated Indebtedness, or directly or indirectly voluntarily
prepay, defease or in substance defease, purchase, redeem, retire or otherwise
acquire, any Subordinated Indebtedness, provided, however, that the Borrower may
exchange outstanding 

                                       51
<PAGE>
 
Subordinated Indebtedness for Subordinated Indebtedness in the same or greater
principal amount and with a maturity no shorter than, and an interest rate no
greater than, the Subordinated Indebtedness being surrendered.

     7.14  Dividends.  The Borrower will not, nor will it permit any Material
Subsidiary to, declare or pay any dividends on its capital stock (other than
dividends payable in its own capital stock), except that any Material Subsidiary
may declare and pay dividends to any Wholly-Owned Subsidiary or the Borrower.


                                  ARTICLE VIII

                                    DEFAULTS
                                    --------

     The occurrence of any one or more of the following events shall constitute
a Default:

     8.1  Any representation or warranty made or deemed made by or on behalf of
the Borrower or any of its Subsidiaries to the Lenders, the Issuer or the Agent
under or in connection with this Agreement, any Loan or Facility Letter of
Credit, or any certificate or information delivered in connection with this
Agreement or any other Loan Document shall be materially false on the date as of
which made.

     8.2  Nonpayment of principal of any Note or any Facility Letter of Credit
when due, or nonpayment of interest upon any Note or of any commitment fee or
other fees and obligations under any of the Loan Documents within five (5) days
after the same becomes due.

     8.3  The breach by the Borrower or any Subsidiary of any of the terms or
provisions of Articles 6 or 7 which is not remedied within fifteen (15) days
after written notice from the Agent or any Lender.

     8.4  The breach by the Borrower or any Subsidiary (other than a breach
which constitutes a Default under Section 8.1, 8.2 or 8.3) of any of the terms
or provisions of this Agreement which is not remedied within thirty (30) days
after written notice from the Agent or any Lender.

     8.5  Failure of the Borrower or any of its Material Subsidiaries to pay
when due any Indebtedness aggregating in excess of $15,000,000 ("Material
Indebtedness"); or the default by the Borrower or any of its Material
Subsidiaries in the performance of any term, provision or condition contained in
any agreement under which any such Material Indebtedness was created or is
governed, or any other event shall occur or condition exist, the effect of which
is to cause, or to permit the holder or holders of such Material Indebtedness to
cause, such Material Indebtedness to become due prior to its stated maturity; or
any Material Indebtedness of the Borrower or any of its Material Subsidiaries

                                       52
<PAGE>
 
shall be declared to be due and payable or required to be prepaid or repurchased
(other than by a regularly scheduled payment) prior to the stated maturity
thereof; or the Borrower or any of its Material Subsidiaries shall not pay, or
admit in writing their inability to pay, their debts generally as they become
due provided, however, that it shall not constitute a default hereunder if the
Borrower or Material Subsidiary is contesting such default by appropriate
proceedings diligently conducted and the holder or holders have not commenced
suit or taken an action to foreclose on, or otherwise attach, any property of
the Borrower or such Material Subsidiary.

     8.6  The Borrower or any of its Material Subsidiaries shall (i) have an
order for relief entered with respect to it under the Federal bankruptcy laws or
other similar law of any Governmental Authority as now or hereafter in effect,
(ii) make an assignment for the benefit of creditors, (iii) apply for, seek,
consent to, or acquiesce in, the appointment of a receiver, custodian, trustee,
examiner, liquidator or similar official for it or any Substantial Portion of
its Property, (iv) institute any proceeding seeking an order for relief under
the Federal bankruptcy laws or other similar law of any Governmental Authority
as now or hereafter in effect or seeking to adjudicate it a bankrupt or
insolvent, or seeking dissolution, winding up, liquidation, reorganization,
arrangement, adjustment or composition of it or its debts under any law relating
to bankruptcy, insolvency or reorganization or relief of debtors or fail to file
an answer or other pleading denying the material allegations of any such
proceeding filed against it, (v) take any corporate action to authorize or
effect any of the foregoing actions set forth in this Section 8.6 or (vi) fail
to contest in good faith any appointment or proceeding described in Section 8.7.

     8.7  Without the application, approval or consent of the Borrower or any of
its Material Subsidiaries, a receiver, trustee, examiner, liquidator or similar
official shall be appointed for the Borrower or any of its Material Subsidiaries
or any Substantial Portion of its or their Property, or a proceeding described
in Section 8.6(iv) shall be instituted against the Borrower or any of its
Material Subsidiaries and such appointment continues undischarged or such
proceeding continues undismissed or unstayed for a period of 60 consecutive
days.

     8.8  Any court, government or governmental agency shall condemn, seize or
otherwise appropriate, or take custody or control of (each a "Condemnation"),
all or any portion of the Property of the Borrower and its Subsidiaries which,
when taken together with all other Property of the Borrower and its Subsidiaries
so condemned, seized, appropriated, or taken custody or control of, during the
twelve-month period ending with the month in which any such Condemnation occurs,
constitutes a Substantial Portion.

     8.9  The Borrower or any of its Subsidiaries shall fail within 30 days to
pay, bond or otherwise discharge any judgment or order for the payment of money
in excess of $15,000,000 which is not stayed on appeal or otherwise being
appropriately contested in good faith.

     8.10 The Unfunded Liabilities of all Single Employer Plans shall exceed in
the aggregate $15,000,000 or any Reportable Event shall occur in connection with
any Plan.

                                       53
<PAGE>
 
     8.11  The Borrower or any of its Subsidiaries shall be the subject of any
proceeding or investigation pertaining to the release by the Borrower or any of
its Subsidiaries, or any other Person of any toxic or hazardous waste or
substance into the environment, or any violation of any federal, state or local
environmental, health or safety law or regulation, which, in either case, could
reasonably be expected to have a Material Adverse Effect.

     8.12  Any Guaranty shall fail to remain in full force or effect or any
action shall be taken to discontinue or to assert the invalidity or
unenforceability of any Guaranty, or any Guarantor shall fail to comply with any
of the terms or provisions of any Guaranty to which it is a party, or any
Guarantor denies that it has any further liability under any Guaranty to which
it is a party, or gives notice to such effect.

     8.13  Any event or condition shall occur or exist with respect to the
Borrower or any Subsidiary which the Required Lenders determine in good faith
will have a Material Adverse Effect.

     8.14  Any Governmental Authority revokes or fails to renew any material
license, permit or franchise of the Borrower or any Material Subsidiary or the
Borrower or any Material Subsidiary for any reason loses any material license,
permit or franchise, or the Borrower suffers the imposition of any restraining
order, escrow, suspension or impound of funds in connection with any proceeding
(judicial or administrative) with respect to any material license, permit or
franchise and such revocation, failure or imposition has, or might reasonably be
expected to have, a Material Adverse Effect.


                                   ARTICLE IX

                 ACCELERATION, WAIVERS, AMENDMENTS AND REMEDIES
                 ----------------------------------------------

     9.1  Acceleration.

     (a) If any Default described in Section 8.6 or 8.7 occurs, (i) the
obligations of the Lenders to make Loans hereunder and the obligation of the
Issuer to issue Facility Letters of Credit shall automatically terminate and the
Obligations shall immediately become due and payable without presentment,
demand, protest or notice of any kind, all of which the Borrower hereby
expressly waives and without any election or action on the part of the Agent or
any Lender and (ii) the Borrower will be and become thereby unconditionally
obligated, without the need for demand or the necessity of any act or evidence,
to deliver to the Agent, at its address specified pursuant to Article XIV, for
deposit into the Letter of Credit Collateral Account, an amount (the "Collateral
Shortfall Amount") equal to the excess, if any, of

     (A) 100% of the sum of the aggregate maximum amount remaining available to

                                       54
<PAGE>
 
be drawn under the Facility Letters of Credit (assuming compliance with all
conditions for drawing thereunder) issued by the Issuer and outstanding as of
such time, minus

     (B) the amount on deposit in the Letter of Credit Collateral Account at
such time that is free and clear of all rights and claims of third parties and
that has not been applied by the Lenders against the Obligations.

     (b) If any Default occurs and is continuing (other than a Default described
in Section 8.6 or 8.7), (i) the Required Lenders may terminate or suspend the
obligations of the Lenders to make Loans and the obligation of the Issuer to
issue Facility Letters of Credit hereunder, or declare the Obligations to be due
and payable, or both, whereupon the Obligations shall become immediately due and
payable, without presentment, demand, protest or notice of any kind, all of
which the Borrower hereby expressly waives and (ii) the Required Lenders may,
upon notice delivered to the Borrower and in addition to the continuing right to
demand payment of all amounts payable under this Agreement, make demand on the
Borrower to deliver (and the Borrower will, forthwith upon demand by the
Required Lenders and without necessity of further act or evidence, be and become
thereby unconditionally obligated to deliver), to the Agent, at its address
specified pursuant to Article XIV, for deposit into the Letter of Credit
Collateral Account an amount equal to the Collateral Shortfall Amount.

     (c) If at any time while any Default is continuing or after the Commitments
of the Lenders have been terminated, the Agent determines that the Collateral
Shortfall Amount at such time is greater than zero, the Agent may make demand on
the Borrower to deliver (and the Borrower will, forthwith upon demand by the
Agent and without necessity of further act or evidence, be and become thereby
unconditionally obligated to deliver), to the Agent as additional funds to be
deposited and held in the Letter of Credit Collateral Account an amount equal to
such Collateral Shortfall Amount at such time.

     (d) The Agent may at any time or from time to time after funds are
deposited in the Letter of Credit Collateral Account, apply such funds to the
payment of the Obligations and any other amounts as shall from time to time have
become due and payable by the Borrower to the Lenders under the Loan Documents.

     (e) Neither the Borrower nor any Person claiming on behalf of or through
the Borrower shall have any right to withdraw any of the funds held in the
Letter of Credit Collateral Account.  After all of the Obligations have been
indefeasibly paid in full, any funds remaining in the Letter of Credit
Collateral Account shall be returned by the Agent to the Borrower or paid to
whoever may be legally entitled thereto at such time.

     (f) The Agent shall exercise reasonable care in the custody and
preservation of any funds held in the Letter of Credit Collateral Account and
shall be deemed to have exercised such care if such funds are accorded treatment
substantially equivalent to that which the Agent accords its own property, it
being understood that the Agent shall not have any responsibility for taking any
necessary steps to preserve rights against any Persons with respect to any such
funds.

                                       55
<PAGE>
  
     If, within 15 days after acceleration of the maturity of the Obligations or
termination of the obligations of the Lenders to make Loans hereunder and the
obligation of the Issuer to issue Facility Letters of Credit hereunder as a
result of any Default (other than any Default as described in Section 8.6 or 8.7
with respect to the Borrower) and before any judgment or decree for the payment
of the Obligations due shall have been obtained or entered, the Required Lenders
(in their sole discretion) shall so direct, the Agent shall, by notice to the
Borrower, rescind and annul such acceleration and/or termination.

     9.2  Amendments. Subject to the provisions of this Article IX, the Required
Lenders (or the Agent with the consent in writing of the Required Lenders) and
the Borrower may enter into agreements supplemental hereto for the purpose of
adding or modifying any provisions to the Loan Documents or changing in any
manner the rights of the Lenders or the Borrower hereunder or waiving any
Default hereunder; provided, however, that notwithstanding anything to the
contrary contained herein, no amendment, modification, change or waiver shall be
effective without consent of all the Lenders to:

          (i)    extend the maturity of the principal of, or interest on, any
                 Note or of any of the other Obligations;
          (ii)   increase or forgive the principal amount of any Note or of any
                 of the other Obligations or decrease the rate of interest
                 thereon;
          (iii)  change the date of payment of principal of, or interest on, any
                 Note or of any of the other Obligations;
          (iv)   change the amount of the Commitment of any Lender (except for a
                 ratable decrease in the Commitments of all Lenders);
          (v)    change the method of calculation utilized in connection with
                 the computation of interest and fees;
          (vi)   change the manner of pro rata application by the Agent of
                 payments made by the Borrower, or any other payments required
                 hereunder or under the other Loan Documents;
          (vii)  release any Guarantor;
          (viii) modify this Section or the definition of "Required Lenders";
                 and
          (ix)   permit the Borrower to assign its rights under this Agreement.

No amendment of any provision of this Agreement relating to the Agent shall be
effective without the written consent of the Agent. The Agent may waive payment
of the fee required under Section 13.3.2 without obtaining the consent of any
other party to this Agreement.

     9.3  Preservation of Rights. No delay or omission of the Lenders or the
Agent to exercise any right under the Loan Documents shall impair such right or
be construed to be a waiver of any Default or an acquiescence therein, and the
making of a Loan or the issuance of a Facility Letter of Credit notwithstanding
the existence of a Default or the inability of the Borrower to satisfy the
conditions precedent to making such Loan or issuing such Facility Letter of
Credit shall not constitute any waiver or acquiescence. Any

                                       56
<PAGE>
 
single or partial exercise of any such right shall not preclude other or
further exercise thereof or the exercise of any other right, and no waiver,
amendment or other variation of the terms, conditions or provisions of the Loan
Documents whatsoever shall be valid unless in writing signed by the Lenders
required pursuant to Section 9.2, and then only to the extent in such writing
specifically set forth. All remedies contained in the Loan Documents or by law
afforded shall be cumulative and all shall be available to the Agent, the
Issuer, and the Lenders until the Obligations have been paid in full.


                                   ARTICLE X

                               GENERAL PROVISIONS
                               ------------------

     10.1 Survival of Representations.  All representations and warranties of
the Borrower contained in this Agreement shall survive delivery of the Notes and
the making of the Loans and the issuance of the Facility Letters of Credit
herein contemplated.

     10.2 Governmental Regulation.  Anything contained in this Agreement to the
contrary notwithstanding, no Lender shall be obligated to extend credit to the
Borrower in violation of any limitation or prohibition provided by any
applicable statute or regulation.

     10.3 Taxes.  Any taxes (excluding federal income taxes on the overall net
income of any Lender) or other similar assessments or charges made by any
governmental or revenue authority in respect of the Loan Documents shall be paid
by the Borrower, together with interest and penalties, if any.

     10.4 Headings.  Section headings in the Loan Documents are for convenience
of reference only, and shall not govern the interpretation of any of the
provisions of the Loan Documents.

     10.5 Entire Agreement.  The Loan Documents embody the entire agreement and
understanding among the Borrower, the Agent, the Issuer and the Lenders and
supersede all prior agreements and understandings among the Borrower, the Agent,
the Issuer and the Lenders relating to the subject matter thereof other than the
fee letter described in Section 11.14.

     10.6 Several Obligations; Benefits of this Agreement.  The respective
obligations of the Lenders hereunder are several and not joint and no Lender
shall be the partner or agent of any other (except to the extent to which the
Agent is authorized to act as such). The failure of any Lender to perform any of
its obligations hereunder shall not relieve any other Lender from any of its
obligations hereunder. This Agreement shall not be construed so as to confer any
right or benefit upon any Person other than the parties to this Agreement and
their respective successors and assigns.

     10.7 Expenses; Indemnification.  The Borrower shall reimburse the Agent for
any
 
                                       57
<PAGE>
 
costs, internal charges and out-of-pocket expenses (including reasonable
attorneys' fees) paid or incurred by the Agent in connection with the
preparation, negotiation, execution, delivery, review, amendment, modification,
and administration of the Loan Documents, provided that Borrower shall not be
obligated to reimburse the Agent for legal fees in connection with the
preparation and execution of the Loan Documents for any amounts in excess of
$15,000. The Borrower also agrees to reimburse the Agent and the Lenders for any
costs and out-of-pocket expenses (including reasonable attorneys' fees and time
charges of attorneys for the Agent and the Lenders, which attorneys may be
employees of the Agent or the Lenders) paid or incurred by the Agent or any
Lender in connection with the collection and enforcement of the Loan Documents.
The Borrower further agrees to indemnify the Agent and each Lender, its
directors, officers and employees against all losses, claims, damages,
penalties, judgments, liabilities and expenses (including, without limitation,
all expenses of litigation or preparation therefor whether or not the Agent or
any Lender is a party thereto) which any of them may pay or incur arising out of
or relating to this Agreement, the other Loan Documents, the transactions
contemplated hereby or the direct or indirect application or proposed
application of the proceeds of any Loan or Facility Letter of Credit hereunder
except to the extent that they are determined by a court of competent
jurisdiction in a final and non-appealable order to have directly resulted from
the negligence, gross negligence, or willful misconduct of the party seeking
indemnification. The obligations of the Borrower under this Section shall
survive the termination of this Agreement.

     10.8   Numbers of Documents. All statements, notices, closing documents,
and requests hereunder shall be furnished to the Agent with sufficient
counterparts so that the Agent may furnish one to each of the Lenders.

     10.9   Accounting.  Except as provided to the contrary herein, all
accounting terms used herein shall be interpreted and all accounting
determinations hereunder shall be made in accordance with GAAP, except that any
calculation or determination which is to be made on a consolidated basis shall
be made for the Borrower and all its Subsidiaries, including those Subsidiaries,
if any, which are unconsolidated on the Borrower's audited financial statements.

     10.10  Severability of Provisions.  Any provision in any Loan Document that
is held to be inoperative, unenforceable, or invalid in any jurisdiction shall,
as to that jurisdiction, be inoperative, unenforceable, or invalid without
affecting the remaining provisions in that jurisdiction or the operation,
enforceability, or validity of that provision in any other jurisdiction, and to
this end the provisions of all Loan Documents are declared to be severable.

     10.11  Nonliability of Lenders.  The relationship between the Borrower, the
Lenders, the Issuer, and the Agent shall be solely that of borrower, lender and
letter of credit issuer. Neither the Agent, the Issuer, nor any Lender shall
have any fiduciary responsibilities to the Borrower. Neither the Agent, the
Issuer, nor any Lender undertakes any responsibility to the Borrower to review
or inform the Borrower of any matter in connection with any phase of the
Borrower's business or operations. The Borrower
 
                                       58
<PAGE>
 
agrees that neither the Agent, the Issuer, nor any Lender shall have liability
to the Borrower (whether sounding in tort, contract or otherwise) for losses
suffered by the Borrower in connection with, arising out of, or in any way
related to, the transactions contemplated and the relationship established by
the Loan Documents, or any act, omission or event occurring in connection
therewith, unless it is determined by a court of competent jurisdiction in a
final and non-appealable order that such losses resulted from the gross
negligence or willful misconduct of the party from which recovery is sought.
Neither the Agent, the Issuer, nor any Lender shall have any liability with
respect to, and the Borrower hereby waives, releases and agrees not to sue for,
any special, indirect or consequential damages suffered by the Borrower in
connection with, arising out of, or in any way related to the Loan Documents or
the transactions contemplated thereby.

     10.12  Confidentiality.  The Agent, the Issuer, and each Lender agree to
hold any confidential information which it may receive from the Borrower or any
Subsidiary pursuant to this Agreement in confidence, except for disclosure (i)
to its Affiliates and to other Lenders and their respective Affiliates, (ii) to
legal counsel, accountants, and other professional advisors to that Lender or to
a Transferee, (iii) to regulatory officials, (iv) to any Person as requested
pursuant to or as required by law, regulation, or legal process, (v) to any
Person in connection with any legal proceeding to which that Lender is a party,
and (vi) permitted by Section 13.4.


                                   ARTICLE XI

                                   THE AGENT
                                   ---------

     11.1   Appointment; Nature of Relationship.  American National Bank and
Trust Company of Chicago is hereby appointed by the Lenders as the Agent
hereunder and under each other Loan Document, and each of the Lenders
irrevocably authorizes the Agent to act as the contractual representative of
such Lender with the rights and duties expressly set forth herein and in the
other Loan Documents. The Agent agrees to act as such contractual representative
upon the express conditions contained in this Article XI. Notwithstanding the
use of the defined term "Agent," it is expressly understood and agreed that the
Agent shall not have any fiduciary responsibilities to any Lender by reason of
this Agreement or any other Loan Document and that the Agent is merely acting as
the representative of the Lenders with only those duties as are expressly set
forth in this Agreement and the other Loan Documents. In its capacity as the
Lenders' contractual representative, the Agent (i) does not hereby assume any
fiduciary duties to any of the Lenders, (ii) is a "representative" of the
Lenders within the meaning of Section 9-105 of the Uniform Commercial Code and
(iii) is acting as an independent contractor, the rights and duties of which are
limited to those expressly set forth in this Agreement and the other Loan
Documents. Each of the Lenders hereby agrees to assert no claim against the
Agent on any agency theory or any other theory of liability for breach of
fiduciary duty, all of which claims each Lender hereby waives.

                                       59
<PAGE>
 
     11.2   Powers.  The Agent shall have and may exercise such powers under the
Loan Documents as are specifically delegated to the Agent by the terms of each
thereof, together with such powers as are reasonably incidental thereto. The
Agent shall have no implied duties to the Lenders, or any obligation to the
Lenders to take any action thereunder except any action specifically provided by
the Loan Documents to be taken by the Agent.

     11.3   General Immunity.  Neither the Agent nor any of its directors,
officers, agents or employees shall be liable to the Borrower, the Lenders or
any Lender for any action taken or omitted to be taken by it or them hereunder
or under any other Loan Document or in connection herewith or therewith except
for its or their own gross negligence or willful misconduct.

     11.4   No Responsibility for Loans, Recitals, etc. Neither the Agent nor
any of its directors, officers, agents or employees shall be responsible for or
have any duty to ascertain, inquire into, or verify (i) any statement, warranty
or representation made in connection with any Loan Document or any borrowing
hereunder; (ii) the performance or observance of any of the covenants or
agreements of any obligor under any Loan Document, including, without
limitation, any agreement by an obligor to furnish information directly to each
Lender; (iii) the satisfaction of any condition specified in Article IV, except
receipt of items required to be delivered to the Agent; (iv) the validity,
enforceability, effectiveness, sufficiency or genuineness of any Loan Document
or any other instrument or writing furnished in connection therewith; or (v) the
value, sufficiency, creation, perfection or priority of any interest in any
collateral security.

     11.5   Action on Instructions of Lenders.  The Agent shall in all cases be
fully protected in acting, or in refraining from acting, hereunder and under any
other Loan Document in accordance with written instructions signed by the
Required Lenders (or all the Lenders, if required hereunder), and such
instructions and any action taken or failure to act pursuant thereto shall be
binding on all of the Lenders and on all holders of Notes. The Lenders hereby
acknowledge that the Agent shall be under no duty to take any discretionary
action permitted to be taken by it pursuant to the provisions of this Agreement
or any other Loan Document unless it shall be requested in writing to do so by
the Required Lenders. The Agent shall be fully justified in failing or refusing
to take any action hereunder and under any other Loan Document unless it shall
first be indemnified to its satisfaction by the Lenders pro rata against any and
all liability, cost and expense that it may incur by reason of taking or
continuing to take any such action.

     11.6   Employment of Agents and Counsel.  The Agent may execute any of its
duties as Agent hereunder and under any other Loan Document by or through
employees, agents, and attorneys-in-fact and shall not be answerable to the
Lenders, except as to money or securities received by it or its authorized
agents, for the default or misconduct of any such agents or attorneys-in-fact
selected by it with reasonable care. The Agent shall be entitled to advice of
counsel concerning all matters pertaining to the agency hereby created and its
duties hereunder and under any other Loan Document.

                                       60
<PAGE>
 
     11.7   Reliance on Documents; Counsel.  The Agent shall be entitled to rely
upon any Note, notice, consent, certificate, affidavit, letter, telegram,
statement, paper or document believed by it to be genuine and correct and to
have been signed or sent by the proper person or persons, and, in respect to
legal matters, upon the opinion of counsel selected by the Agent, which counsel
may be an employee of the Agent.

     11.8   Agent's Reimbursement and Indemnification.  The Lenders agree to
reimburse and indemnify the Agent ratably in proportion to their respective
Commitments (or, if the Commitments have been terminated, in proportion to their
Commitments immediately prior to such termination) (i) for any amounts not
reimbursed by the Borrower for which the Agent is entitled to reimbursement by
the Borrower under the Loan Documents, (ii) for any other expenses incurred by
the Agent on behalf of the Lenders and not reimbursed by the Borrower under the
Loan Documents, in connection with the preparation, execution, delivery,
administration and enforcement of the Loan Documents and (iii) for any
liabilities, obligations, losses, damages, penalties, actions, judgments, suits,
costs, expenses or disbursements of any kind and nature whatsoever which may be
imposed on, incurred by or asserted against the Agent in any way relating to or
arising out of the Loan Documents or any other document delivered in connection
therewith or the transactions contemplated thereby, or the enforcement of any of
the terms thereof or of any such other documents, provided that no Lender shall
be liable for any of the foregoing to the extent they arise from the gross
negligence or willful misconduct of the Agent. The obligations of the Lenders
under this Section 11.8 shall survive payment of the Obligations and termination
of this Agreement.

     11.9   Notice of Default. The Agent shall not be deemed to have knowledge
or notice of the occurrence of any Default or Unmatured Default hereunder unless
the Agent has received written notice from a Lender or the Borrower referring to
this Agreement describing such Default or Unmatured Default and stating that
such notice is a "notice of default". In the event that the Agent receives such
a notice, the Agent shall give prompt notice thereof to the Lenders.

     11.10  Rights as a Lender.  In the event the Agent is a Lender or the
Issuer, the Agent shall have the same rights and powers hereunder and under any
other Loan Document as any Lender or Issuer and may exercise the same as though
it were not the Agent, and the term "Lender", "Lenders" or "Issuer" shall, at
any time when the Agent is a Lender or Issuer, unless the context otherwise
indicates, include the Agent in its individual capacity. The Agent may accept
deposits from, lend money to, and generally engage in any kind of trust, debt,
equity or other transaction, in addition to those contemplated by this Agreement
or any other Loan Document, with the Borrower or any of its Subsidiaries in
which the Borrower or such Subsidiary is not restricted hereby from engaging
with any other Person. The Agent, in its individual capacity, is not obligated
to remain a Lender or the Issuer.

     11.11  Lender Credit Decision.  Each Lender acknowledges that it has,
independently and without reliance upon the Agent or any other Lender and based
on the financial statements prepared by the Borrower and such other documents
and information
            
                                      61
<PAGE>
 
as it has deemed appropriate, made its own credit analysis and decision to enter
into this Agreement and the other Loan Documents. Each Lender also acknowledges
that it will, independently and without reliance upon the Agent or any other
Lender and based on such documents and information as it shall deem appropriate
at the time, continue to make its own credit decisions in taking or not taking
action under this Agreement and the other Loan Documents.

     11.12  Information.  The Agent shall promptly deliver to the Lenders
copies of all financial statements, written reports and other written
information delivered by the Borrower to the Agent in compliance with the terms
of this Agreement and any written requests by the Borrower for amendments or
waivers to the Agreement. The Agent agrees that upon receipt by it of a written
request from a Lender that such Lender wants information from the Borrower
pursuant to Section 6.3.5(E) and Section 6.3.7 and specifying the information it
wants, the Agent shall promptly request such information from the Borrower and
will cooperate with the Lender to obtain the information desired by such Lender.
The Agent shall have no responsibility for the timeliness, sufficiency, accuracy
or completeness of any information supplied by the Borrower or for any
interpretation or use thereof by the Lender. Agent's sole responsibility
hereunder shall be to request the Borrower to provide the information.

     11.13  Successor Agent.  The Agent may resign at any time by giving written
notice thereof to the Lenders and the Borrower, such resignation to be effective
upon the appointment of a successor Agent or, if no successor Agent has been
appointed, forty-five days after the retiring Agent gives notice of its
intention to resign. The Agent may be removed at any time with or without cause
by written notice received by the Agent from the Required Lenders, such removal
to be effective on the date specified by the Required Lenders. Upon any such
resignation or removal, the Required Lenders shall have the right to appoint, on
behalf of the Borrower and the Lenders and with the consent of the Borrower, a
successor Agent. If no successor Agent shall have been so appointed by the
Required Lenders and consented to by the Borrower within thirty days after the
resigning Agent's giving notice of its intention to resign, then the resigning
Agent may appoint, on behalf of the Borrower and the Lenders, a successor Agent.
If the Agent has resigned or been removed and no successor Agent has been
appointed, the Lenders may perform all the duties of the Agent hereunder and the
Borrower shall make all payments in respect of the Obligations to the applicable
Lender and for all other purposes shall deal directly with the Lenders. No
successor Agent shall be deemed to be appointed hereunder until such successor
Agent has accepted the appointment. Any such successor Agent shall be a
commercial bank having capital and retained earnings of at least $750,000,000.
Upon the acceptance of any appointment as Agent hereunder by a successor Agent,
such successor Agent shall thereupon succeed to and become vested with all the
rights, powers, privileges and duties of the resigning or removed Agent. Upon
the effectiveness of the resignation or removal of the Agent, the resigning or
removed Agent shall be discharged from its duties and obligations hereunder and
under the Loan Documents. After the effectiveness of the resignation or removal
of an Agent, the provisions of this Article X shall continue in effect for the
benefit of such Agent in respect of any actions taken or omitted to be taken by
it while it was acting as the Agent hereunder and under

                                       62
<PAGE>
 
the other Loan Documents.

     11.14  Agent's Fee.  The Borrower agrees to pay to the Agent, for its own
account, the fees agreed to by the Borrower and the Agent pursuant to that
certain letter agreement dated April 4, 1997, as amended August 28, 1997, or as
otherwise agreed from time to time.


                                  ARTICLE XII

                            SETOFF; RATABLE PAYMENTS
                            ------------------------

     12.1   Setoff.  In addition to, and without limitation of, any rights of
the Lenders under applicable law, if the Borrower becomes insolvent, however
evidenced, or any Default occurs, any and all deposits (including all account
balances, whether provisional or final and whether or not collected or
available) and any other Indebtedness at any time held or owing by any Lender to
or for the credit or account of the Borrower may be offset and applied toward
the payment of the Obligations owing to such Lender, whether or not the
Obligations, or any part hereof, shall then be due.

     12.2   Ratable Payments.  If any Lender, whether by setoff or otherwise,
has payment made to it upon its Loans (other than payments received pursuant to
Section 3.1, 3.2 or 3.4) in a greater proportion than that received by any other
Lender, such Lender agrees, promptly upon demand, to purchase a portion of the
Loans held by the other Lenders so that after such purchase each Lender will
hold its ratable proportion of Loans. If any Lender, whether in connection with
setoff or amounts which might be subject to setoff or otherwise, receives
collateral or other protection for its Obligations or such amounts which may be
subject to setoff, such Lender agrees, promptly upon demand, to take such action
necessary such that all Lenders share in the benefits of such collateral ratably
in proportion to their Loans. In case any such payment is disturbed by legal
process, or otherwise, appropriate further adjustments shall be made.

     If an amount to be setoff is to be applied to Indebtedness of the Borrower
to a Lender, other than Indebtedness evidenced by any of the Notes held by such
Lender or a Facility Letter of Credit Obligation, such amount shall be applied
first to the Obligations and only after the Obligations are paid in full and
discharged shall it be applied to Indebtedness not evidenced by the Notes or
Facility Letter of Credit.


                                  ARTICLE XIII

               BENEFIT OF AGREEMENT; ASSIGNMENTS; PARTICIPATIONS
               -------------------------------------------------

     13.1   Successors and Assigns.  The terms and provisions of the Loan
Documents

                                      63
<PAGE>
 
shall be binding upon and inure to the benefit of the Borrower and the Lenders
and their respective successors and assigns, except that (i) the Borrower shall
not have the right to assign its rights or obligations under the Loan Documents
and (ii) any assignment by any Lender must be made in compliance with Section
13.3. Notwithstanding clause (ii) of this Section, any Lender may at any time,
without the consent of the Borrower or the Agent, assign all or any portion of
its rights under this Agreement and its Notes to a Federal Reserve Bank;
provided, however, that no such assignment to a Federal Reserve Bank shall
release the transferor Lender from its obligations hereunder. The Agent may
treat the payee of any Note as the owner thereof for all purposes hereof unless
and until such payee complies with Section 13.3 in the case of an assignment
thereof or, in the case of any other transfer, a written notice of the transfer
is filed with the Agent. Any assignee or transferee of a Note agrees by
acceptance thereof to be bound by all the terms and provisions of the Loan
Documents. Any request, authority or consent of any Person, who at the time of
making such request or giving such authority or consent is the holder of any
Note, shall be conclusive and binding on any subsequent holder, transferee or
assignee of such Note or of any Note or Notes issued in exchange therefor.

     13.2   Participations.

            13.2.1  Permitted Participants; Effect.  Any Lender may, in the
ordinary course of its business and in accordance with applicable law, at any
time sell to one or more banks or other entities ("Participants") participating
interests in any Loan owing to such Lender, any Note held by such Lender, any
Commitment of such Lender or any other interest of such Lender under the Loan
Documents. In the event of any such sale by a Lender of participating interests
to a Participant, such Lender's obligations under the Loan Documents shall
remain unchanged, such Lender shall remain solely responsible to the other
parties hereto for the performance of such obligations, such Lender shall remain
the holder of any such Note for all purposes under the Loan Documents, all
amounts payable by the Borrower under this Agreement shall be determined as if
such Lender had not sold such participating interests, and the Borrower and the
Agent shall continue to deal solely and directly with such Lender in connection
with such Lender's rights and obligations under the Loan Documents. No
Participant shall be permitted to make any claims itself under Article III, but
may make claims through its applicable Lender, but only to the extent that the
facts and circumstances giving rise to such claims also apply to the applicable
Lender.

            13.2.2  Voting Rights.  Each Lender shall retain the sole right to
approve, without the consent of any Participant, any amendment, modification or
waiver of any provision of the Loan Documents other than any amendment,
modification or waiver with respect to any Loan, Facility Letter of Credit or
Commitment in which such Participant has an interest which forgives principal,
interest or fees or reduces the interest rate or fees payable with respect to
any such Loan, Facility Letter of Credit or Commitment, postpones any date fixed
for any regularly-scheduled payment of principal of, or interest or fees on, any
such Loan, Facility Letter of Credit or Commitment, releases any Guarantor of
any such Loan, Facility Letter of Credit or releases any substantial portion of
collateral, if any, securing any such Loan or Facility Letter of Credit.

                                       64
<PAGE>
 
            13.2.3  Benefit of Setoff.  The Borrower agrees that each
Participant shall be deemed to have the right of setoff provided in Section 12.1
in respect of its participating interest in amounts owing under the Loan
Documents to the same extent as if the amount of its participating interest were
owing directly to it as a Lender under the Loan Documents, provided that each
Lender shall retain the right of setoff provided in Section 12.1 with respect to
the amount of participating interests sold to each Participant. The Lenders
agree to share with each Participant, and each Participant, by exercising the
right of setoff provided in Section 12.1, agrees to share with each Lender, any
amount received pursuant to the exercise of its right of setoff, such amounts to
be shared in accordance with Section 12.2 as if each Participant were a Lender.

     13.3 Assignments.

            13.3.1  Permitted Assignments.  Any Lender may, in the ordinary
course of its business and in accordance with applicable law, at any time assign
to one or more banks or other entities ("Purchasers") all or any part of its
rights and obligations under the Loan Documents. Such assignment shall be
substantially in the form of Exhibit "D" hereto or in such other form as may be
agreed to by the parties thereto. The consent of the Borrower and the Agent
shall be required prior to an assignment becoming effective with respect to a
Purchaser which is not a Lender or with respect to a Purchaser who is an
Affiliate where said assignment immediately results in the imposition of
increased costs pursuant to Article III hereof; provided, however, that if a
Default has occurred and is continuing, the consent of the Borrower shall not be
required to any assignment. Such consent shall not be unreasonably withheld or
delayed.

            13.3.2  Effect; Effective Date.  Upon (i) delivery to the Agent of a
notice of assignment, substantially in the form attached as Exhibit "I" to
Exhibit "D" hereto (a "Notice of Assignment"), together with any consents
required by Section 13.3.1, and (ii) payment of a $4,000 fee to the Agent for
processing such assignment, such assignment shall become effective on the
effective date specified in such Notice of Assignment. The Notice of Assignment
shall contain a representation by the Purchaser to the effect that none of the
consideration used to make the purchase of the Commitment and Loans under the
applicable assignment agreement are "plan assets" as defined under ERISA and
that the rights and interests of the Purchaser in and under the Loan Documents
will not be "plan assets" under ERISA. On and after the effective date of such
assignment, such Purchaser shall for all purposes be a Lender party to this
Agreement and any other Loan Document executed by the Lenders and shall have all
the rights and obligations of a Lender under the Loan Documents, to the same
extent as if it were an original party hereto, and no further consent or action
by the Borrower, the Lenders or the Agent shall be required to release the
transferor Lender with respect to the percentage of the Aggregate Commitment and
Loans assigned to such Purchaser. Upon the consummation of any assignment to a
Purchaser pursuant to this Section 13.3.2, the transferor Lender, the Agent and
the Borrower shall make appropriate arrangements so that replacement Notes are
issued to such transferor Lender and new Notes or, as appropriate, replacement
Notes, are issued to such Purchaser, in each case in principal

                                       65
<PAGE>
 
amounts reflecting their Commitment, as adjusted pursuant to such assignment.

     13.4  Dissemination of Information.  The Borrower authorizes each Lender to
disclose to any Participant or Purchaser or any other Person acquiring an
interest in the Loan Documents by operation of law (each a "Transferee") and any
prospective Transferee any and all information in such Lender's possession
concerning the creditworthiness of the Borrower and its Subsidiaries; provided
that each Transferee and prospective Transferee agrees to be bound by Section
10.12 of this Agreement.

     13.5  Tax Treatment.  If any interest in any Loan Document is transferred 
to any Transferee which is organized under the laws of any jurisdiction other
than the United States or any State thereof, the transferor Lender shall cause
such Transferee, concurrently with the effectiveness of such transfer, to comply
with the provisions of Section 4.3.


                                  ARTICLE XIV

                                    NOTICES
                                    -------

     14.1  Notices.  Except as otherwise permitted by Section 2.13 with respect
to borrowing notices, all notices, requests and other communications to any
party hereunder shall be in writing (including bank wire, facsimile transmission
or similar writing) and shall be given to such party: (x) in the case of the
Borrower, the Issuer or the Agent, at its address or facsimile number set forth
on the signature pages hereof, (y) in the case of any Lender or the Issuer, at
its address or facsimile number set forth below its signature hereto or (z) in
the case of any party, such other address or facsimile number as such party may
hereafter specify for the purpose by notice to the Agent and the Borrower.  Each
such notice, request or other communication shall be effective (i) if given by
facsimile transmission, when transmitted to the facsimile number specified in
this Section and confirmation of receipt is received, (ii) if given by mail, 72
hours after such communication is deposited in the mails with first class
postage prepaid, addressed as aforesaid or (iii) if given by any other means,
when delivered at the address specified in this Section; provided that notices
to the Agent under Article II shall not be effective until received.

     14.2  Change of Address.  The Borrower, the Agent, the Issuer and any 
Lender may each change the address for service of notice upon it by a notice in
writing to the other parties hereto.


                                   ARTICLE XV

                    COUNTERPARTS, AMENDMENT AND RESTATEMENT
                    ---------------------------------------

                                       66
<PAGE>
 
     15.1  Counterparts.  This Agreement may be executed in any number of
counterparts, all of which taken together shall constitute one agreement, and
any of the parties hereto may execute this Agreement by signing any such
counterpart.  This Agreement shall be effective when it has been executed by the
Borrower, the Agent and the Lenders and each party has notified the Agent by
telex or telephone, that it has taken such action.

     15.2  Amendment and Restatement.  This Agreement constitutes an amendment
and restatement of the Prior Credit Agreement, which Prior Credit Agreement is
fully superseded and amended and restated in its entirety hereby; provided,
however, that the Obligations governed by the Prior Credit Agreement shall
remain outstanding and in full force and effect and provided further that this
Agreement does not constitute a novation of such Obligations.


                                  ARTICLE XVI

          CHOICE OF LAW, CONSENT TO JURISDICTION, WAIVER OF JURY TRIAL
          ------------------------------------------------------------

     16.1  CHOICE OF LAW.  THE LOAN DOCUMENTS (OTHER THAN THOSE CONTAINING A
CONTRARY EXPRESS CHOICE OF LAW PROVISION) SHALL BE CONSTRUED IN ACCORDANCE WITH
THE INTERNAL LAWS (AND NOT THE LAW OF CONFLICTS) OF THE STATE OF ILLINOIS, BUT
GIVING EFFECT TO FEDERAL LAWS APPLICABLE TO NATIONAL BANKS.

     16.2  CONSENT TO JURISDICTION.  THE BORROWER HEREBY IRREVOCABLY SUBMITS TO
THE NON-EXCLUSIVE JURISDICTION OF ANY UNITED STATES FEDERAL OR ILLINOIS STATE
COURT SITTING IN CHICAGO IN ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING
TO ANY LOAN DOCUMENTS AND THE BORROWER HEREBY IRREVOCABLY AGREES THAT ALL CLAIMS
IN RESPECT OF SUCH ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN ANY SUCH
COURT AND IRREVOCABLY WAIVES ANY OBJECTION IT MAY NOW OR HEREAFTER HAVE AS TO
THE VENUE OF ANY SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN SUCH A COURT OR THAT
SUCH COURT IS AN INCONVENIENT FORUM.  NOTHING HEREIN SHALL LIMIT THE RIGHT OF
THE AGENT, THE ISSUER OR ANY LENDER TO BRING PROCEEDINGS AGAINST THE BORROWER IN
THE COURTS OF ANY OTHER JURISDICTION.  ANY JUDICIAL PROCEEDING BY THE BORROWER
AGAINST THE AGENT OR ANY LENDER OR ANY AFFILIATE OF THE AGENT, THE ISSUER, OR
ANY LENDER INVOLVING, DIRECTLY OR INDIRECTLY, ANY MATTER IN ANY WAY ARISING OUT
OF, RELATED TO, OR CONNECTED WITH ANY LOAN DOCUMENT SHALL BE BROUGHT ONLY IN A
COURT IN CHICAGO, ILLINOIS.

     16.3  WAIVER OF JURY TRIAL.  THE BORROWER, THE AGENT, THE

                                       67
<PAGE>
 
ISSUER, AND EACH LENDER HEREBY WAIVE TRIAL BY JURY IN ANY JUDICIAL PROCEEDING
INVOLVING, DIRECTLY OR INDIRECTLY, ANY MATTER (WHETHER SOUNDING IN TORT,
CONTRACT OR OTHERWISE) IN ANY WAY ARISING OUT OF, RELATED TO, OR CONNECTED WITH
ANY LOAN DOCUMENT OR THE RELATIONSHIP ESTABLISHED THEREUNDER.

                                      68
<PAGE>
 
     IN WITNESS WHEREOF, the Borrower, the Lenders and the Agent have executed
this Agreement as of the date first above written.



                                    PLATINUM technology, inc.

                                    By:  /s/ Michael P. Cullinane
                                         ------------------------

                                    Print Name: Michael P. Cullinane
                                                --------------------

                                    Title: Executive V.P. and CFO
                                           ----------------------
 
                                    1815 South Meyers Road
                                    Oakbrook Terrace, Illinois 60181-5235

                                    Attention: William J. Gecsey
                                               -----------------

                                       69
<PAGE>
 
     Commitments
     -----------

     $ 25,000,000                   AMERICAN NATIONAL BANK 
                                    AND TRUST COMPANY OF
                                    CHICAGO,
                                    Individually and as Agent

                                    By: /s/ Paul C. Carlisle
                                        --------------------
 
                                    Print Name: Paul C. Carlisle
                                                ----------------

                                    Title: First V.P.
                                           ----------
                                         120 South LaSalle Street
                                         Chicago, Illinois 60603
                                    Attention: Paul Carlisle

     $25,000,000                    LASALLE NATIONAL BANK

                                    By: /s/ K. Scott Doyle
                                        ------------------                  
                                    Print Name: K. Scott Doyle
                                                --------------
                                    Title: SVP                        
                                           ---                                 
                                         135 South LaSalle Street
                                         Suite 217
                                         Chicago, Illinois 60603
                                    Attention:

     $10,000,000                    SILICON VALLEY BANK
 
                                    By: /s/ Brent Donnell
                                        -----------------
                                    Print Name: Brent Donnell
                                                -------------
                                    Title: SVP
                                           ---
                                         9701 W. Higgins Road
                                         Suite 150
                                         Rosemont, Illinois 60018
                                    Attention:

     $5,000,000                     WELLS FARGO BANK
 
                                    By: /s/ Douglas W. Carlson
                                        ----------------------
                                    Print Name: Douglas W. Carlson
                                                ------------------
                                    Title: Senior Vice President
                                           ---------------------
                                         121 Park Center Plaza
                                         3/rd/ Fl
                                         San Jose, CA 95113
                                    Attention: Karen Barone

                                       70
<PAGE>
 
     $65,000,000
     ===========

                                       71

<PAGE>
 
                                  EXHIBIT "A"

                                      NOTE


$____________                                                  December 21, 1998


     PLATINUM technology, inc., a Delaware corporation (the "Borrower"),
promises to pay to the order of __________________________________ (the 
"Lender") the lesser of the principal sum of __________________ Dollars or the
aggregate unpaid principal amount of all Loans made by the Lender to the
Borrower pursuant to Article II of the Agreement (as hereinafter defined), in
immediately available funds at the main office of American National Bank and
Trust Company of Chicago in Chicago, Illinois, as Agent, together with interest
on the unpaid principal amount hereof at the rates and on the dates set forth in
the Agreement.  The Borrower shall pay the principal of and accrued and unpaid
interest on the Loans in full on the Facility Termination Date.

     The Lender shall, and is hereby authorized to, record on the schedule
attached hereto, or to otherwise record in accordance with its usual practice,
the date and amount of each Loan and the date and amount of each principal
payment hereunder.  Subject to the terms of the Agreement, the Borrower may
repay and reborrow at any time prior to the Facility Termination Date.

     This Note is one of the Notes issued pursuant to, and is entitled to the
benefits of, the Credit Agreement dated as of December 21, 1998, (which, as it
may be amended or modified and in effect from time to time, is herein called the
"Agreement"), among the Borrower, the lenders party thereto, including the
Lender, and American National Bank and Trust Company of Chicago, as Agent, to
which Agreement reference is hereby made for a statement of the terms and
conditions governing this Note, including the terms and conditions under which
this Note may be prepaid or its maturity date accelerated.  This Note is
guaranteed pursuant to the Guaranties, all as more specifically described in the
Agreement, and reference is made thereto for a statement of the terms and
provisions thereof.  Capitalized terms used herein and not otherwise defined
herein are used with the meanings attributed to them in the Agreement.

                              PLATINUM technology, inc.


                              _____________________________________ 

                              By:__________________________________
                              Print Name:__________________________
                              Title:_______________________________

                                     A-1
<PAGE>
 
                  SCHEDULE OF LOANS AND PAYMENTS OF PRINCIPAL
                                       TO
                       NOTE OF PLATINUM technology, inc.,
                            DATED December 21, 1998

<TABLE>
<CAPTION>
                                                   Maturity
               Principal         Maturity          Principal
               Amount of        of Interest         Amount           Unpaid
Date             Loan             Period             Paid            Balance
----             ----             ------             -----           ------- 
<S>            <C>              <C>                <C>               <C>

</TABLE>

                                     A-2
<PAGE>
 
                                  EXHIBIT "B"
                                FORM OF OPINION

                                                         __________, 19__

The Agent and the Lenders who are parties to the
Credit Agreement described below.

Gentlemen/Ladies:

     We are counsel for PLATINUM technology, inc. (the "Borrower"), and have
represented the Borrower in connection with its execution and delivery of a
Credit Agreement dated as of December 21, 1998 (the "Agreement") among the
Borrower, the Lenders named therein, and American National Bank and Trust
Company of Chicago, as Agent, and providing for Advances and Facility Letters of
Credit in an aggregate principal amount not exceeding $65,000,000 at any one
time outstanding.  All capitalized terms used in this opinion and not otherwise
defined herein shall have the meanings attributed to them in the Agreement.

     We have examined the Borrower's articles of incorporation, by-laws,
resolutions, the Loan Documents and such other matters of fact and law which we
deem necessary in order to render this opinion.  Based upon the foregoing, it is
our opinion that:

     l.   The Borrower and each Material Subsidiary are corporations duly
incorporated, validly existing and in good standing under the laws of their
states of incorporation and have all requisite authority to conduct their
business in each jurisdiction in which their business is conducted.

     2.   The execution and delivery of the Loan Documents by the Borrower and
the performance by the Borrower of the Obligations have been duly authorized by
all necessary corporate action and proceedings on the part of the Borrower and
will not:

          (a) require any consent of the Borrower's shareholders;

          (b) violate any law, rule, regulation, order, writ, judgment,
     injunction, decree or award binding on the Borrower or any of its Material
     Subsidiaries or the Borrower's or any Material Subsidiary's articles of
     incorporation or by-laws or any indenture, instrument or agreement binding
     upon the Borrower or any of its Subsidiaries; or

          (c) result in, or require, the creation or imposition of any Lien
     pursuant to the provisions of any indenture, instrument or agreement
     binding upon the Borrower or any of its Subsidiaries.

     3.   The Loan Documents have been duly executed and delivered by the
Borrower and constitute legal, valid and binding obligations of the Borrower
enforceable in 

                                     B-1
<PAGE>
 
accordance with their terms except to the extent the enforcement thereof may be
limited by bankruptcy, insolvency or similar laws affecting the enforcement of
creditors' rights generally and subject also to the availability of equitable
remedies if equitable remedies are sought.

     4.   There is no litigation or proceeding against the Borrower or any of
its Subsidiaries which, if adversely determined, could reasonably be expected to
have a Material Adverse Effect.

     5.   No approval, authorization, consent, adjudication or order of any
governmental authority, which has not been obtained by the Borrower or any of
its Subsidiaries, is required to be obtained by the Borrower or any of its
Material Subsidiaries in connection with the execution and delivery of the Loan
Documents, the borrowings under the Agreement, the issuance of any Facility
Letters of Credit or in connection with the payment by the Borrower of the
Obligations.

     6.   The Obligations constitute senior indebtedness which is entitled to 
the benefits of the subordination provisions of all outstanding Subordinated
Indebtedness.

     This opinion may be relied upon by the Agent, the Lenders and their
participants, assignees and other transferees.


                              Very truly yours,

                              ___________________________

                                     B-2
<PAGE>
 
                                  EXHIBIT "C"

                             COMPLIANCE CERTIFICATE

To:  The Lenders parties to the
     Credit Agreement Described Below

     This Compliance Certificate is furnished pursuant to that certain Credit
Agreement dated as of December 21, 1998 (as amended, modified, renewed or
extended from time to time, the "Agreement") among the PLATINUM technology, inc.
(the "Borrower"), the lenders party thereto and American National Bank and Trust
Company of Chicago, as Agent for the Lenders.  Unless otherwise defined herein,
capitalized terms used in this Compliance Certificate have the meanings ascribed
thereto in the Agreement.

     THE UNDERSIGNED HEREBY CERTIFIES THAT:

     1.  I am the duly elected _____________________ of the Borrower;

     2.  I have reviewed the terms of the Agreement and I have made, or have
caused to be made under my supervision, a detailed review of the transactions
and conditions of the Borrower and its Subsidiaries during the accounting period
covered by the attached financial statements;

     3.  The examinations described in paragraph 2 did not disclose, and I have
no knowledge of, the existence of any condition or event which constitutes a
Default or Unmatured Default during or at the end of the accounting period
covered by the attached financial statements or as of the date of this
Certificate, except as set forth below; and

     4.  Schedule I attached hereto sets forth financial data and computations
evidencing the Borrower's compliance with certain covenants of the Agreement,
all of which data and computations are true, complete and correct.

     Described below are the exceptions, if any, to paragraph 3 by listing, in
detail, the nature of the condition or event, the period during which it has
existed and the action which the Borrower has taken, is taking, or proposes to
take with respect to each such condition or event:

     ___________________________________________________________________________

     ___________________________________________________________________________

     ___________________________________________________________________________

     ___________________________________________________________________________

                                      C-1
<PAGE>
 
     The foregoing certifications, together with the computations set forth in
Schedule I [and Schedule II] hereto and the financial statements delivered with
this Certificate in support hereof, are made and delivered this ____ day of
__________, 19___.

                                      C-2
<PAGE>
 
                      SCHEDULE I TO COMPLIANCE CERTIFICATE

                     Compliance as of _________, 199_ with
          Provisions of Section 6.2.1, 6.2.2, 6.2.3, 7.2, 7.5, and 7.7
 
A.   Quick Ratio ((S)6.2.1)
 
     1.     Cash and Cash Equivalents               ________________
     2.     Current and Non-Current Securities      ________________
     3.     Net Trade Accounts Receivable           ________________
     4.     Sum of Lines 1, 2 and 3                 ________________
     5.     Current Liabilities                     ________________
     6.     Current Portion of Deferred Revenues    ________________
     7.     Line 5 minus Line 6                     ________________
     8.     Ratio of Line 4 to Line 7               ________________
     9.     Line 8 must be equal to or exceed       1.00
                                                    ----------------
     10.    Borrower in Compliance                       Yes/No
                                                    ----------------
 
B.   Tangible Net Worth ((S)6.2.2)
 
     1.     Stockholders Common Equity              ________________
     2.     Outstanding Subordinated Debt           ________________
     3.     Sum of Lines 1 and 2                    ________________
     4.     Capitalized Software                    ________________
     5.     Goodwill                                ________________
     6.     Other Intangible Assets                 ________________
     7.     Sum of Lines 4, 5 and 6                 ________________
     8.     Line 3 minus Line 7 (Tangible Net Worth)________________
         Consolidated Net Income                    ________________
         50% of Line 9                              ________________
         Net proceeds of Stock sales                ________________
         Sum of Lines 10 & 11 and $275,000,000      ________________
         Line 8 must be equal to or exceed Line 12  ________________
     14.    Borrower in Compliance                       Yes/No
                                                    ----------------
 
C.   Total Liabilities to Tangible Net Worth (6.2.3)
 
     1.     Total Liabilities                       ________________
     2.     Outstanding Subordinated Debt           ________________
     3.     Deferred Revenues                       ________________
     4.     Sum of Lines 2 and 3                    ________________
     5.     Line 1 minus Line 4                     ________________
     6.     Tangible Net Worth (Line B.8)           ________________
     7.     Ratio of Line 5 to Line 6               ________________
     8.     Ratio must not exceed                        1.00
                                                    ----------------

                                      C-3
<PAGE>
 
     9.     Borrower in Compliance                          Yes/No
                                                       ----------------
 
D.          Indebtedness and Other Obligations (7.2)   ________________
     1.     Capitalized Lease Obligations              ________________
     2.     Other Contingent Obligations of     
            Material Subsidiaries                      ________________
     3.     Other Indebtedness and Contingent
            Obligations                                ________________
     4.     No individual line to exceed                 $ 15,000,000
                                                       ----------------
         Contingent Obligations under 7.2(ix)
         Line 5 not to exceed                            $100,000,000
                                                       ----------------
         Borrower in Compliance                             Yes/No
                                                       ----------------
 
E.   Sale of Assets
 
     1.     Receivables Sold and Outstanding with
            Recourse to Borrower or any Subsidiary
         Line 1 not to exceed                            $100,000,000
                                                       ----------------
     3.     Borrower in Compliance                          Yes/No
                                                       ----------------
 
F.   Advances, Investments, and Loans
 
     1.     Temporary Working Capital financing
            and/or Advances to Third Parties           ________________
     2.     Line 1 not to exceed                         $ 15,000,000
                                                       ----------------
     3.     Borrower in Compliance                          Yes/No
                                                       ----------------

                                      C-4
<PAGE>
 
                                  EXHIBIT "D"

                              ASSIGNMENT AGREEMENT

     This Assignment Agreement (this "Assignment Agreement") between
__________________________ (the "Assignor") and __________________ (the
"Assignee") is dated as of _________________, 19__.  The parties hereto agree as
follows:

     1.   PRELIMINARY STATEMENT.  The Assignor is a party to a Credit Agreement
(which, as it may be amended, modified, renewed or extended from time to time is
herein called the "Credit Agreement") described in Item 1 of Schedule 1 attached
hereto ("Schedule 1").  Capitalized terms used herein and not otherwise defined
herein shall have the meanings attributed to them in the Credit Agreement.

     2.   ASSIGNMENT AND ASSUMPTION.  The Assignor hereby sells and assigns to
the Assignee, and the Assignee hereby purchases and assumes from the Assignor,
an interest in and to the Assignor's rights and obligations under the Credit
Agreement such that after giving effect to such assignment the Assignee shall
have purchased pursuant to this Assignment Agreement the percentage interest
specified in Item 3 of Schedule 1 of all outstanding rights and obligations
under the Credit Agreement relating to the facilities listed in Item 3 of
Schedule 1 and the other Loan Documents.  The aggregate Commitment (or Loans and
participations in the Facility Letters of Credit, if the applicable Commitment
has been terminated) purchased by the Assignee hereunder is set forth in Item 4
of Schedule 1.

     3.   EFFECTIVE DATE.  The effective date of this Assignment Agreement (the
"Effective Date") shall be the later of the date specified in Item 5 of Schedule
1 or two Business Days (or such shorter period agreed to by the Agent) after a
Notice of Assignment substantially in the form of Exhibit "I" attached hereto
has been delivered to the Agent.  Such Notice of Assignment must include any
consents required to be delivered to the Agent by Section 13.3.1 of the Credit
Agreement.  In no event will the Effective Date occur if the payments required
to be made by the Assignee to the Assignor on the Effective Date under Sections
4 and 5 hereof are not made on the proposed Effective Date.  The Assignor will
notify the Assignee of the proposed Effective Date no later than the Business
Day prior to the proposed Effective Date.  As of the Effective Date, (i) the
Assignee shall have the rights and obligations of a Lender under the Loan
Documents with respect to the rights and obligations assigned to the Assignee
hereunder and (ii) the Assignor shall relinquish its rights and be released from
its corresponding obligations under the Loan Documents with respect to the
rights and obligations assigned to the Assignee hereunder.

     4.   PAYMENTS OBLIGATIONS.  On and after the Effective Date, the Assignee
shall be entitled to receive from the Agent all payments of principal,
reimbursement payments under Facility Letters of Credit, interest and fees with
respect to the interest assigned hereby.  The Assignee shall advance funds
directly to the Agent with respect to 

                                      D-1
<PAGE>
 
all Loans and reimbursement payments made on or after the Effective Date with
respect to the interest assigned hereby. In consideration for the sale and
assignment of Loans and participations in the Letters of Credit hereunder, (i)
the Assignee shall pay the Assignor, on the Effective Date, an amount equal to
the principal amount of the portion of all Floating Rate Loans assigned to the
Assignee hereunder and (ii) with respect to each Fixed Rate Loan made by the
Assignor and assigned to the Assignee hereunder which is outstanding on the
Effective Date, (a) on the last day of the Eurodollar Interest Period therefor
or (b) on such earlier date agreed to by the Assignor and the Assignee or (c) on
the date on which any such Fixed Rate Loan either becomes due (by acceleration
or otherwise) or is prepaid (the date as described in the foregoing clauses (a),
(b) or (c) being hereinafter referred to as the "Payment Date"), the Assignee
shall pay the Assignor an amount equal to the principal amount of the portion of
such Fixed Rate Loan assigned to the Assignee which is outstanding on the
Payment Date. If the Assignor and the Assignee agree that the Payment Date for
such Fixed Rate Loan shall be the Effective Date, they shall agree to the
interest rate applicable to the portion of such Loan assigned hereunder for the
period from the Effective Date to the end of the existing Eurodollar Interest
Period applicable to such Fixed Rate Loan (the "Agreed Interest Rate") and any
interest received by the Assignee in excess of the Agreed Interest Rate shall be
remitted to the Assignor. In the event interest for the period from the
Effective Date to but not including the Payment Date is not paid by the Borrower
with respect to any Fixed Rate Loan sold by the Assignor to the Assignee
hereunder, the Assignee shall pay to the Assignor interest for such period on
the portion of such Fixed Rate Loan sold by the Assignor to the Assignee
hereunder at the applicable rate provided by the Credit Agreement. In the event
a prepayment of any Fixed Rate Loan which is existing on the Payment Date and
assigned by the Assignor to the Assignee hereunder occurs after the Payment Date
but before the end of the Eurodollar Interest Period applicable to such Fixed
Rate Loan, the Assignee shall remit to the Assignor the excess of the prepayment
penalty paid with respect to the portion of such Fixed Rate Loan assigned to the
Assignee hereunder over the amount which would have been paid if such prepayment
penalty was calculated based on the Agreed Interest Rate. The Assignee will also
promptly remit to the Assignor (i) any principal payments received from the
Agent with respect to Fixed Rate Loans prior to the Payment Date and (ii) any
amounts of interest on Loans and fees and reimbursement payments received from
the Agent which relate to the portion of the Loans and Facility Letters of
Credit assigned to the Assignee hereunder for periods prior to the Effective
Date, in the case of Floating Rate Loans or fees, or the Payment Date, in the
case of Fixed Rate Loans, and not previously paid by the Assignee to the
Assignor.* In the event that either party hereto receives any payment to which
the other party hereto is entitled under this Assignment Agreement, then the
party receiving such amount shall promptly remit it to the other party hereto.

*Each Assignor may insert its standard payment provisions in lieu of the payment
terms included in this Exhibit.

     5.   FEES PAYABLE BY THE ASSIGNEE.  The Assignee shall pay to the Assignor
a fee on each day on which a payment of interest or fees is made under the
Credit Agreement with respect to the amounts assigned to the Assignee hereunder
(other 

                                      D-2
<PAGE>
 
than a payment of interest or commitment fees for the period prior to the
Effective Date or, in the case of Fixed Rate Loans, the Payment Date, which the
Assignee is obligated to deliver to the Assignor pursuant to Section 4 hereof).
The amount of such fee shall be the difference between (i) the interest or fee,
as applicable, paid with respect to the amounts assigned to the Assignee
hereunder and (ii) the interest or fee, as applicable, which would have been
paid with respect to the amounts assigned to the Assignee hereunder if each
interest rate was ___ of 1%  less than the interest rate paid by the Borrower or
if the [commitment fee/ Facility Letter of Credit fee] was ___ of 1% less than
the commitment fee paid by the Borrower, as applicable.  In addition, the
Assignee agrees to pay ___% of the recordation fee required to be paid to the
Agent in connection with this Assignment Agreement.

     6.   REPRESENTATIONS OF THE ASSIGNOR; LIMITATIONS ON THE ASSIGNOR'S
LIABILITY.  The Assignor represents and warrants that it is the legal and
beneficial owner of the interest being assigned by it hereunder and that such
interest is free and clear of any adverse claim created by the Assignor.  It is
understood and agreed that the assignment and assumption hereunder are made
without recourse to the Assignor and that the Assignor makes no other
representation or warranty of any kind to the Assignee.  Neither the Assignor
nor any of its officers, directors, employees, agents or attorneys shall be
responsible for (i) the due execution, legality, validity, enforceability,
genuineness, sufficiency or collectability of any Loan Document, including
without limitation, documents granting the Assignor and the other Lenders a
security interest in assets of the Borrower or any guarantor, (ii) any
representation, warranty or statement made in or in connection with any of the
Loan Documents, (iii) the financial condition or creditworthiness of the
Borrower or any guarantor, (iv) the performance of or compliance with any of the
terms or provisions of any of the Loan Documents, (v) inspecting any of the
Property, books or records of the Borrower, (vi) the validity, enforceability,
perfection, priority, condition, value or sufficiency of any collateral securing
or purporting to secure the Loans and the Facility Letters of Credit or (vii)
any mistake, error of judgment, or action taken or omitted to be taken in
connection with the Loans or the Loan Documents.

     7.   REPRESENTATIONS OF THE ASSIGNEE.  The Assignee (i) confirms that it
has received a copy of the Credit Agreement, together with copies of the
financial statements requested by the Assignee and such other documents and
information as it has deemed appropriate to make its own credit analysis and
decision to enter into this Assignment Agreement, (ii) agrees that it will,
independently and without reliance upon the Agent, the Assignor or any other
Lender and based on such documents and information at it shall deem appropriate
at the time, continue to make its own credit decisions in taking or not taking
action under the Loan Documents, (iii) appoints and authorizes the Agent to take
such action as agent on its behalf and to exercise such powers under the Loan
Documents as are delegated to the Agent by the terms thereof, together with such
powers as are reasonably incidental thereto, (iv) agrees that it will perform in
accordance with their terms all of the obligations which by the terms of the
Loan Documents are required to be performed by it as a Lender, (v) agrees that
its payment instructions and notice instructions are as set forth in the
attachment to 

                                      D-3
<PAGE>
 
Schedule 1, (vi) confirms that none of the funds, monies, assets or other
consideration being used to make the purchase and assumption hereunder are "plan
assets" as defined under ERISA and that its rights, benefits and interests in
and under the Loan Documents will not be "plan assets" under ERISA, [(vii)
confirms that it is an Eligible Assignee,]* [and (viii) attaches the forms
prescribed by the Internal Revenue Service of the United States certifying that
the Assignee is entitled to receive payments under the Loan Documents without
deduction or withholding of any United States federal income taxes].**

*to be inserted if required by the Credit Agreement.
**to be inserted if the Assignee is not incorporated under the laws of the
United States, or a state thereof.

     8.   INDEMNITY.  The Assignee agrees to indemnify and hold the Assignor
harmless against any and all losses, costs and expenses (including, without
limitation, reasonable attorneys' fees) and liabilities incurred by the Assignor
in connection with or arising in any manner from the Assignee's non-performance
of the obligations assumed under this Assignment Agreement.

     9.   SUBSEQUENT ASSIGNMENTS.  After the Effective Date, the Assignee shall
have the right pursuant to Section [13.3.1] of the Credit Agreement to assign
the rights which are assigned to the Assignee hereunder to any entity or person,
provided that (i) any such subsequent assignment does not violate any of the
terms and conditions of the Loan Documents or any law, rule, regulation, order,
writ, judgment, injunction or decree and that any consent required under the
terms of the Loan Documents has been obtained and (ii) unless the prior written
consent of the Assignor is obtained, the Assignee is not thereby released from
its obligations to the Assignor hereunder, if any remain unsatisfied, including,
without limitation, its obligations under [Sections 4, 5 and 8] hereof.

     10.  REDUCTIONS OF AGGREGATE COMMITMENT.  If any reduction in the Aggregate
Commitment occurs between the date of this Assignment Agreement and the
Effective Date, the percentage interest specified in Item 3 of Schedule 1 shall
remain the same, but the dollar amount purchased shall be recalculated based on
the reduced Aggregate Commitment.

     11.  ENTIRE AGREEMENT.  This Assignment Agreement and the attached Notice
of Assignment embody the entire agreement and understanding between the parties
hereto and supersede all prior agreements and understandings between the parties
hereto relating to the subject matter hereof.

     12.  GOVERNING LAW.  This Assignment Agreement shall be governed by the
internal law, and not the law of conflicts, of the State of Illinois.


     13.  NOTICES.  Notices shall be given under this Assignment Agreement in
the manner set forth in the Credit Agreement.  For the purpose hereof, the
addresses of the parties hereto (until notice of a change is delivered) shall be
the address set forth in the 

                                      D-4
<PAGE>
 
attachment to Schedule 1.

     IN WITNESS WHEREOF, the parties hereto have executed this Assignment
Agreement by their duly authorized officers as of the date first above written.

                              [NAME OF ASSIGNOR]

                              By:    _______________________________
                              Title: _______________________________
                                     _______________________________
                                     _______________________________


                              [NAME OF ASSIGNEE]

                              By:    _______________________________
                              Title: _______________________________
                                     _______________________________
                                     _______________________________

                                     D-5
<PAGE>
 
                                   SCHEDULE 1
                            to Assignment Agreement

1.   Description and Date of Credit Agreement:

2.   Date of Assignment Agreement: _____________, 19__

3.   Amounts (As of Date of Item 2 above):

4.   Assignee's Aggregate (Loan
     Amount)**  Commitment Amount
     Purchased Hereunder:                  $_____

5.   Proposed Effective Date:             ________

Accepted and Agreed:

[NAME OF ASSIGNOR]                [NAME OF ASSIGNEE]
By:_____________             By:________________
Title:__________             Title:_____________



**   If a Commitment has been terminated, insert outstanding Loans in place of
Commitment
***  Percentage taken to 10 decimal places

                                     D-6
<PAGE>
 
                Attachment to SCHEDULE 1 to ASSIGNMENT AGREEMENT

         Attach Assignor's Administrative Information Sheet, which must
            include notice address for the Assignor and the Assignee

                                      D-7
<PAGE>
 
                                  EXHIBIT "F"

                                   GUARANTY


                                      1
<PAGE>
 
                                  EXHIBIT "I"
                            to Assignment Agreement

                                    NOTICE
                                 OF ASSIGNMENT
                                 -------------

                                        __________, 19_

To:       [NAME OF BORROWER]*
          _________________________
          _________________________

          [NAME OF AGENT]
          _________________________
          _________________________


From:     [NAME OF ASSIGNOR] (the "Assignor")

          [NAME OF ASSIGNEE] (the "Assignee")

     1.   We refer to that Credit Agreement (the "Credit Agreement") described
in Item 1 of Schedule 1 attached hereto ("Schedule 1").  Capitalized terms used
herein and not otherwise defined herein shall have the meanings attributed to
them in the Credit Agreement.

     2.   This Notice of Assignment (this "Notice") is given and delivered to
[the Borrower and] the Agent pursuant to Section [13.3.2] of the Credit
Agreement.

     3.   The Assignor and the Assignee have entered into an Assignment
Agreement, dated as of ___________, 19__ (the "Assignment"), pursuant to which,
among other things, the Assignor has sold, assigned, delegated and transferred
to the Assignee, and the Assignee has purchased, accepted and assumed from the
Assignor the percentage interest specified in Item 3 of Schedule 1 of all
outstandings, rights and obligations under the Credit Agreement relating to the
facilities listed in Item 3 of Schedule 1.  The Effective Date of the Assignment
shall be the later of the date specified in Item 5 of Schedule 1 or two Business
Days (or such shorter period as agreed to by the Agent) after this Notice of
Assignment and any consents and fees required by Sections 13.3.1 and 13.3.2 of
the Credit Agreement have been delivered to the Agent, provided that the
Effective Date shall not occur if any condition precedent agreed to by the
Assignor and the Assignee has not been satisfied.

     4.   The Assignor and the Assignee hereby give to the Borrower and the
Agent notice of the assignment and delegation referred to herein.  The Assignor
will confer with the Agent before the date specified in Item 5 of Schedule 1 to
determine if the Assignment Agreement will become effective on such date
pursuant to Section 3 hereof, 
<PAGE>
 
and will confer with the Agent to determine the Effective Date pursuant to
Section 3 hereof if it occurs thereafter. The Assignor shall notify the Agent if
the Assignment Agreement does not become effective on any proposed Effective
Date as a result of the failure to satisfy the conditions precedent agreed to by
the Assignor and the Assignee. At the request of the Agent, the Assignor will
give the Agent written confirmation of the satisfaction of the conditions
precedent.

     5.   The Assignor or the Assignee shall pay to the Agent on or before the
Effective Date the processing fee of $4,000 required by Section 13.3.2 of the
Credit Agreement.

     6.   If Notes are outstanding on the Effective Date, the Assignor and the
Assignee request and direct that the Agent prepare and cause the Borrower to
execute and deliver new Notes or, as appropriate, replacements notes, to the
Assignor and the Assignee.  The Assignor and, if applicable, the Assignee each
agree to deliver to the Agent the original Note received by it from the Borrower
upon its receipt of a new Note in the appropriate amount.

     7.   The Assignee advises the Agent that notice and payment instructions
are set forth in the attachment to Schedule 1.

     8.   The Assignee hereby represents and warrants that none of the funds,
monies, assets or other consideration being used to make the purchase pursuant
to the Assignment are "plan assets" as defined under ERISA and that its rights,
benefits, and interests in and under the Loan Documents will not be "plan
assets" under ERISA.

     9.   The Assignee authorizes the Agent to act as its agent under the Loan
Documents in accordance with the terms thereof.  The Assignee acknowledges that
the Agent has no duty to supply information with respect to the Borrower or the
Loan Documents to the Assignee until the Assignee becomes a party to the Credit
Agreement.*

*May be eliminated if Assignee is a party to the Credit Agreement prior to the
Effective Date.

NAME OF ASSIGNOR                         NAME OF ASSIGNEE

By:______________________                By:________________________

Title:___________________                Title:_____________________



ACKNOWLEDGED [AND CONSENTED TO]     ACKNOWLEDGED [AND CONSENTED TO]
BY [NAME OF AGENT]                  BY [NAME OF BORROWER]
<PAGE>
 
By:_________________________________     By:________________________________
Title:______________________________     Title:_____________________________

                 [Attach photocopy of Schedule 1 to Assignment]
<PAGE>
 
                                  EXHIBIT "E"
                 LOAN/CREDIT RELATED MONEY TRANSFER INSTRUCTION

To American National Bank and Trust Company of Chicago
as Agent (the "Agent") under the Credit Agreement
Described Below.

Re:  Credit Agreement, dated December 21, 1998 (as the same may be amended or
modified, the "Credit Agreement"), among PLATINUM technology, inc. (the
"Borrower"), the Lenders named therein and the Agent.  Capitalized terms used
herein and not otherwise defined herein shall have the meanings assigned thereto
in the Credit Agreement.

     The Agent is specifically authorized and directed to act upon the following
standing money transfer instructions with respect to the proceeds of Advances or
other extensions of credit from time to time until receipt by the Agent of a
specific written revocation of such instructions by the Borrower, provided,
however, that the Agent may otherwise transfer funds as hereafter directed in
writing by the Borrower in accordance with Section 13.1 of the Credit Agreement
or based on any telephonic notice made in accordance with Section 2.13 of the
Credit Agreement.

Facility Identification Number(s)_______________________________________________

Customer/Account Name___________________________________________________________
 
Transfer Funds To_______________________________________________________________

                    ____________________________________________________________

                    ____________________________________________________________
 
For Account No._________________________________________________________________
 
Reference/Attention To__________________________________________________________

Authorized Officer (Customer Representative)  Date______________________________

________________________________         _______________________________________
(Please Print)                                Signature

Bank Officer Name                   Date________________________________________
 
________________________________    ____________________________________________
(Please Print)                                Signature

   (Deliver Completed Form to Credit Support Staff For Immediate Processing)
<PAGE>
 
                                SCHEDULE "5.2.1"

                      SUBSIDIARIES AND OTHER INVESTMENTS
                           (See Sections___________)

<TABLE>
<CAPTION>
Investment      Owned       Amount of      Percent      Jurisdiction of
    In           By        Investment     Ownership      Organization
    --           --        ----------     ---------      ------------
<S>             <C>        <C>            <C>            <C> 

</TABLE>

<PAGE>
 
                                 SCHEDULE "5.6"

                                   LITIGATION


                                     None

<PAGE>
 
                                SCHEDULE "5.8"

                                   APPROVALS


                                     None

<PAGE>
 
                                SCHEDULE "7.2"

                            INDEBTEDNESS AND LIENS
                           (See Sections__________)

<TABLE>
<CAPTION>
                                                             Maturity
Indebtedness     Indebtedness          Property             and Amount
Incurred By         Owed To       Encumbered (If Any)     of Indebtedness
-----------         -------       -------------------     ---------------
<S>              <C>              <C>                     <C>  

</TABLE>

<PAGE>
 
                                  Schedule 7.4


     This summarizes Platinum technology, inc.'s ("PTI") action on reorganizing
PTI into a holding company structure.  As shown on the attached chart, the new
organization will result in the current PTI becoming a holding company with no
operations.  The name "Platinum technology, inc." will be moved down to the
operating subsidiary level.  PTI will then have three new subsidiaries (one
first tier and two second tier):/1/

     The intellectual property ("IP") holding company -- this will be the first
          tier subsidiary which will hold all intellectual property and license
          it for use by the other subsidiaries;

     1.   The principal operating company -- this will be owned by the IP
          Holding Company and will own all of the domestic assets, employ the
          domestic operating personnel and conduct all the domestic business;

     The international holding company ("IHC") -- this will be owned by the IP
          Holding Company, will have exclusive foreign distribution rights to
          the firm's software and outbound international IP rights will be
          channeled through this company.

     The mechanics of the transaction in broad brush strokes are as follows:

I.   Create New Operating Company.
     ---------------------------- 

     Current PTI establishes a newly formed wholly owned Delaware corporation.
          At conclusion of the reorganization current PTI will be renamed so
          that the operating company is Platinum technology, inc.

     Current PTI assigns to the new operating sub all of PTI's operating assets,
          liabilities and contracts.  The non operating items retained by the
          current PTI will be cash, investments, stock in subsidiaries (foreign
          and domestic), convertible notes payable, and any outstanding debt
          under any credit agreement.  In return for this contribution, PTI
          would receive the stock of the newco, a promissory note payable from
          newco to PTI, and agreements for the operating company to use and
          exploit PTI's current intellectual property and develop all future
          intellectual property which in turn would be owned by the new
          intellectual property holding company.

     All domestic operations would then be conducted out of the new operating
          company.

II.  Create International Holding Company ("IHC").
     -------------------------------------------- 

     Current PTI also forms an international holding company which will be an
          off-shore entity organized in the Netherlands.

     When the IP Holding Company is formed (see III below), the IHC is
          contributed to the IP Holding Company and becomes a subsidiary of the
          IP Holding Company.  The IHC will then be granted an exclusive license
          from the IP Holding Company for distributing 

------------------------
/1/ Additionally, the existing acquired subsidiaries would continue to exist and
    be transferred to and owned by the intellectual property holding company.
    New acquisitions in the future to be paid for in PTI stock would be done
    through new first tier subsidiaries which might later be dropped down and
    become wholly owned by the IP Holding Company.
<PAGE>
 
          PTI's intellectual property rights off-shore.

     The stock of all (or a vast majority of) existing foreign subsidiaries will
          also be transferred to the IHC.

     Any foreign subsidiaries that have development operations will contract
          directly with the IP Holding Company to develop future intellectual
          property for the account of the IP Holding Company.

III. Create IP Holding Company:
     ------------------------- 

     Current PTI forms a new Delaware corporation, the sole business of which
          will be to hold and license all of the PTI intellectual property.

     Current PTI will contribute all its intellectual property to the IP Holding
          Company and the stock of all the other subsidiaries (i.e., the new
          operating company, the new international holding company and other
          existing acquisition subsidiaries) in return for the stock of IP
          Holding Company and a note.  The new operating company and the other
          subsidiaries will then be subsidiaries of the IP Holding Company.

     The IP Holding Company licenses the intellectual property to the new
          operating company.  The new operating company also agrees to develop
          future intellectual property for the account of the IP Holding
          Company.

  Credit Agreement Issues
  -----------------------

     Each of the new operating company, the IHC and IP Holding Company would
          guaranty or become a co-obligor under PTI's Amended and Restated
          Credit Agreement with American National Bank and Trust Company of
          Chicago, as Agent, and the lenders party thereto (the "Credit
          Agreement"). In addition, each of Platinum Technology UK Limited,
          Platinum Technology GmbH, and each other foreign subsidiary which is
          or becomes a Material Subsidiary as defined in the Credit Agreement
          would guaranty PTI's obligations thereunder.
<PAGE>
 
                          Insert Reorganization Chart
                          ---------------------------