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SIXTH AMENDMENT
TO
LOAN AND SECURITY AGREEMENT

    This Sixth Amendment to Loan and Security Agreement is entered into as of
October 31, 2001 (the "Amendment"), by and between COMERICA BANK-CALIFORNIA
("Bank") and MSC.Software Corporation ("Borrower").

RECITALS

    Borrower and Bank are parties to that certain Loan and Security Agreement
dated as of August 11, 1999, as amended from time to time, including but not
limited to by that certain Amendment to Loan and Security Agreement dated as of
October 28, 1999, that certain Second Amendment to Loan and Security Agreement
dated as of October 29, 1999, that certain Third Amendment to Loan and Security
Agreement dated as of May 11, 2001, that certain Fourth Amendment to Loan and
Security Agreement dated as of July 19, 2001, and that certain Fifth Amendment
to Loan and Security Agreement dated as of August 20, 2001 (the "Agreement").
The parties desire to amend the Agreement in accordance with the terms of this
Amendment.

    NOW, THEREFORE, the parties agree as follows:

    1.  Section 1.1 of the Agreement hereby is amended by adding or amending the
following defined terms:

    "Effective Tangible Net Worth" means at any date as of which the amount
thereof shall be determined, the sum of the capital stock and additional paid-in
capital plus retained earnings (or minus accumulated deficit) of Borrower and
its Subsidiaries, minus intangible assets, plus Subordinated Debt, plus one
(1) time extraordinary charges related to acquisitions, on a consolidated basis,
determined in accordance with GAAP.

    "Revolving Maturity Date" means October 30, 2002.

    "Subordinated Debt" means any debt incurred by a Borrower that is
subordinated to the debt owing by Borrower to Bank on terms reasonably
acceptable to Bank.

    2.  Section 2.1.1(a) of the Agreement hereby is amended in its entirety to
read as follows:

"(a) Subject to and upon the terms and conditions of this Agreement, Borrower
may request, and Bank agrees to make, Advances in an aggregate outstanding
amount not to exceed the Committed Revolving Line. Subject to the terms and
conditions of this Agreement, amounts borrowed pursuant to this Section 2.1.1
may be repaid and reborrowed at any time prior to the Revolving Maturity Date,
at which time all Advances under this Section 2.1.1 shall be immediately due and
payable."

    3.  Section 6.10 of the Agreement hereby is amended in its entirety to read
as follows:

"6.10 Fixed Charge Coverage Ratio. Borrower shall maintain, on a rolling four
(4) quarter basis, a Fixed Charge Coverage Ratio of 1.00 to 1.00 from the
Closing Date through March 31, 2002. As used herein, "Fixed Charge Coverage
Ratio" means the ratio of (x) earnings before interest, taxes, depreciation and
amortization on a rolling four quarters basis to (y) the amount of scheduled
principal payments on the current portion of long term debt (including scheduled
principal payments made on Subordinated Debt) plus interest, taxes, software
capitalized and capital expenditures (net of financing) during such rolling four
quarters."

    4.  Section 6.12 of the Agreement hereby is amended in its entirety to read
as follows:

"Section 6.12 Profitability. Borrower shall not lose money in more than one
(1) fiscal quarter, and shall be profitable (determined in accordance with
GAAP), before and after taxes, on an annual basis.

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    5.  Section 6.13 of the Agreement hereby is amended in its entirety to read
as follows:

"Section 6.13 Intentionally Omitted."

    6.  Section 6.14 of the Agreement hereby is amended in its entirety to read
as follows:

"6.14 Effective Tangible Net Worth. Borrower shall maintain an Effective
Tangible Net Worth of not less than Seventy Five Million Dollars ($75,000,000),
plus the sum of (x) seventy-five percent (75%) of net income (determined in
accordance with GAAP) generated, and (y) one hundred percent (100%) of the gross
proceeds received by Borrower from the sale or issuance of Borrower's (and/or
Subsidiary's) debt or equity securities, after October 30, 2001."

    7.  Exhibit A to the Agreement shall be replaced with Exhibit A attached
hereto.

    8.  Exhibit D to the Agreement shall be replaced with Exhibit D attached
hereto.

    9.  Unless otherwise defined, all capitalized terms in this Amendment shall
be as defined in the Agreement. Except as amended, the Agreement remains in full
force and effect.

    10. Borrower represents and warrants that the representations and warranties
contained in the Agreement are true and correct as of the date of this
Amendment, and that except as expressly waived hereby, no Event of Default has
occurred and is continuing.

    11. This Amendment may be executed in two or more counterparts, each of
which shall be deemed an original, but all of which together shall constitute
one instrument.

    12. As a condition to the effectiveness of this Amendment, Bank shall have
received, in form and substance satisfactory to Bank, the following:

    (a) this Amendment, duly executed by Borrower;

    (b) a certificate of the Secretary of Borrower with respect to incumbency
and resolutions authorizing the execution and delivery of this Amendment;

    (c) a UCC Amendment;

    (d) a Landlord's Waiver;

    (e) An amount equal to all Bank Expenses incurred to date; and

    (f)  such other documents, and completion of such other matters, as Bank may
reasonably deem necessary or appropriate.

    IN WITNESS WHEREOF, the undersigned have executed this Amendment as of the
first date above written.

MSC.SOFTWARE CORPORATION
 
COMERICA BANK-CALIFORNIA
By:
 
/s/ LOUIS A. GRECO       

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By:
 
/s/ SCOTT LANE       

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Name:   Louis A. Greco   Name:   Scott Lane Title:   Chief Financial Officer

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  Title:   Vice President

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CORPORATE RESOLUTIONS TO BORROW

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Borrower:  MSC.SOFTWARE CORPORATION

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    I, the undersigned Secretary or Assistant Secretary of MSC.SOFTWARE
CORPORATION (the "Corporation"), HEREBY CERTIFY that the Corporation is
organized and existing under and by virtue of the laws of Delaware.

    I FURTHER CERTIFY that attached hereto as Attachments 1 and 2 are true and
complete copies of the Certificate of Incorporation, as amended, and the
Restated Bylaws of the Corporation, each of which is in full force and effect on
the date hereof.

    I FURTHER CERTIFY that at a meeting of the Directors of the Corporation duly
called and held, at which a quorum was present and voting, (or by other duly
authorized corporate action in lieu of a meeting), the following resolutions
were adopted.

    BE IT RESOLVED, that any one (1) of the following named officers, employees,
or agents of this Corporation, whose actual signatures are shown below:

NAMES

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  POSITIONS

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  ACTUAL SIGNATURES

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Frank Perna, Jr.

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  President

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Louis A. Greco

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  Chief Financial Officer/Secretary

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acting for an on behalf of this Corporation and as its act and deed be, and they
hereby are, authorized and empowered:

    Borrow Money.  To borrow from time to time from Comerica Bank-California
("Bank"), on such terms as may be agreed upon between the officers, employees,
or agents and Bank, such sum or sums of money as in their judgment should be
borrowed, without limitation, including such sums as are specified in that
certain Sixth Amendment to Loan and Security Agreement dated as of October 31,
2001 (the "Amendment").

    Execute Amendments.  To execute and deliver to Bank the Amendment, and also
to execute and deliver to Bank one or more renewals, extensions, modifications,
consolidations, or substitutions therefor.

    Grant Security.  To grant a security interest to Bank in the Collateral
described in the Amendment, which security interest shall secure all of the
Corporation's Obligations, as described in the Amendment.

    Negotiate Items.  To draw, endorse, and discount with Bank all drafts, trade
acceptances, promissory notes, or other evidences of indebtedness payable to or
belonging to the Corporation or in which the Corporation may have an interest,
and either to receive cash for the same or to cause such proceeds to be credited
to the account of the Corporation with Bank, or to cause such other disposition
of the proceeds derived therefrom as they may deem advisable.

    Further Acts.  In the case of lines of credit, to designate additional or
alternate individuals as being authorized to request advances thereunder, and in
all cases, to do and perform such other acts and things, to pay any and all fees
and costs, and to execute and deliver such other documents and agreements as
they may in their discretion deem reasonably necessary or proper in order to
carry into effect the provisions of these resolutions.

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    BE IT FURTHER RESOLVED, that any and all acts authorized pursuant to these
resolutions and performed prior to the passage of these resolutions are hereby
ratified and approved, that these resolutions shall remain in full force and
effect and Bank may rely on these resolutions until written notice of their
revocation shall have been delivered to and received by Bank. Any such notice
shall not affect any of the Corporation's agreements or commitments in effect at
the time notice is given.

    I FURTHER CERTIFY that the officers, employees, and agents named above are
duly elected, appointed, or employed by or for the Corporation, as the case may
be, and occupy the positions set forth opposite their respective names; that the
foregoing resolutions now stand of record on the books of the Corporation; and
that the Resolutions are in full force and effect and have not been modified or
revoked in any manner whatsoever.

    IN WITNESS WHEREOF, I have hereunto set my hand on November 13, 2001 and
attest that the signatures set opposite the names listed above are their genuine
signatures.

 
 
CERTIFIED TO AND ATTESTED BY:
 
 
X
 
          /s/ LOUIS A. GRECO   

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Louis A. Greco, Secretary

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DEBTOR:   MSC.SOFTWARE CORPORATION    
SECURED PARTY:
 
COMERICA BANK—CALIFORNIA
 
 

EXHIBIT A

COLLATERAL DESCRIPTION ATTACHMENT

    All personal property of Borrower (herein referred to as "Borrower" or
"Debtor") whether presently existing or hereafter created or acquired, and
wherever located, including, but not limited to:

    (a) all accounts (including health-care-insurance receivables), chattel
paper (including tangible and electronic chattel paper), deposit accounts,
documents (including negotiable documents), equipment (including all accessions
and additions thereto), general intangibles (including payment intangibles and
software), goods (including fixtures), instruments (including promissory notes),
inventory (including all goods held for sale or lease or to be furnished under a
contract of service, and including returns and repossessions), investment
property (including securities and securities entitlements), letter of credit
rights, money, and all of Debtor's books and records with respect to any of the
foregoing, and the computers and equipment containing said books and records;

    (b) all common law and statutory copyrights and copyright registrations,
applications for registration, now existing or hereafter arising, in the United
States of America or in any foreign jurisdiction, obtained or to be obtained on
or in connection with any of the forgoing, or any parts thereof or any
underlying or component elements of any of the forgoing, together with the right
to copyright and all rights to renew or extend such copyrights and the right
(but not the obligation) of Secured Party to sue in its own name and/or in the
name of the Debtor for past, present and future infringements of copyright;

    (c) all trademarks, service marks, trade names and service names and the
goodwill associated therewith, together with the right to trademark and all
rights to renew or extend such trademarks and the right (but not the obligation)
of Secured Party to sue in its own name and/or in the name of the Debtor for
past, present and future infringements of trademark;

    (d) all (i) patents and patent applications filed in the United States
Patent and Trademark Office or any similar office of any foreign jurisdiction,
and interests under patent license agreements, including, without limitation,
the inventions and improvements described and claimed therein, (ii) licenses
pertaining to any patent whether Debtor is licensor or licensee, (iii) income,
royalties, damages, payments, accounts and accounts receivable now or hereafter
due and/or payable under and with respect thereto, including, without
limitation, damages and payments for past, present or future infringements
thereof, (iv) right (but not the obligation) to sue in the name of Debtor and/or
in the name of Secured Party for past, present and future infringements thereof,
(v) rights corresponding thereto throughout the world in all jurisdictions in
which such patents have been issued or applied for, and (vi) reissues,
divisions, continuations, renewals, extensions and continuations-in-part with
respect to any of the foregoing; and

    (e) any and all cash proceeds and/or noncash proceeds of any of the
foregoing, including, without limitation, insurance proceeds, and all supporting
obligations and the security therefor or for any right to payment. All terms
above have the meanings given to them in the California Uniform Commercial Code,
as amended or supplemented from time to time, including revised Division 9 of
the Uniform Commercial Code-Secured Transactions, added by Stats. 1999, c.991
(S.B. 45), Section 35, operative July 1, 2001.

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EXHIBIT D

COMPLIANCE CERTIFICATE

TO:   COMERICA BANK-CALIFORNIA    
FROM:
 
MSC.Software Corporation
 
 

    The undersigned authorized officer, on behalf of MSC.Software Corporation
hereby certifies that in accordance with the terms and conditions of the Loan
and Security Agreement between Borrower and Bank (the "Agreement"), (i) Borrower
is in complete compliance for the period ending            with all required
covenants except as noted below and (ii) all representations and warranties of
Borrower stated in the Agreement are true and correct in all material respects
as of the date hereof; provided, however that those representations and
warranties expressly referring to another date shall be true and correct as of
such date. Attached herewith are the required documents supporting the above
certification. The Officer further certifies that these are prepared in
accordance with Generally Accepted Accounting Principles (GAAP) and are
consistently applied from one period to the next except as explained in an
accompanying letter or footnotes.

Please indicate compliance status by circling Yes/No under "Complies" column.

Reporting Covenant

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  Required

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  Complies

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Monthly income statements   Monthly within 30 days   Yes   No Quarterly balance
sheet, income statement and statement of cash flows   Quarterly within 45 days  
Yes   No Annual (CPA Audited)   FYE within 90 days   Yes   No 10K and 10Q  
Within 5 days   Yes   No Domestic balance sheet, A/R & A/P Agings   Monthly
within 15 days (when applicable)   Yes   No A/R Audit   Initial and Annual   Yes
  No
Financial Covenant

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Required

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Actual

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Complies

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Maintain on a Quarterly Basis:                   Minimum Quick Ratio   1.50:1.00
        :1.00   Yes   No   Maximum Debt:ETNW   2.50:1.00            Yes   No  
Minimum Profitability   $1.00(1)   $         Yes   No   Minimum Fixed Charge
Coverage (measured on a rolling 4-quarter basis)   1.00:1.00         :1.00   Yes
  No   Minimum Effective TNW   $75,000,000(2)   $         Yes   No

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(1)Profitable Annually; no more than 1 quarter of losses. (2)To be increased by
(i) 75% of net income and (ii) 100% of equity proceeds, received after 10/30/01.

    BANK USE ONLY Comments Regarding Exceptions:  See Attached            
Received by:  

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Sincerely,       AUTHORIZED SIGNER

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Date:
 

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Signature        
Chief Financial Officer

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Verified:
 

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Title       AUTHORIZED SIGNER
10-31-01

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Date:
 

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Date   Compliance Status:  Yes  No  

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QuickLinks

EXHIBIT A COLLATERAL DESCRIPTION ATTACHMENT
EXHIBIT D COMPLIANCE CERTIFICATE