AMENDMENT NO. 4
                                       TO
                                CREDIT AGREEMENT

     Amendment  No. 4, dated  December  20,  1999 (the  "Amendment"),  to Credit
Agreement, dated as of December 18, 1998 (this "Agreement"),  is entered into by
and among ePlus inc., a Delaware corporation  formerly named MLC Holdings,  Inc.
("ePlus"),  MLC GROUP, INC., a Virginia  corporation  ("MLC"),  and MLC FEDERAL,
INC.,  a  Virginia  corporation  ("Federal")  as  borrowers  (collectively,  the
"Borrowers"  and   individually,   a  "Borrower"),   the  banking   institutions
signatories  thereto and named in Exhibit A attached to the  Agreement  and such
other  institutions  that hereafter  become a "Bank" pursuant to Section 11.4 of
the Agreement (collectively,  the "Banks" and individually,  a "Bank") and First
Union  National  Bank, a national  banking  association,  as agent for the Banks
under the Agreement ("First Union" which shall mean its capacity as agent unless
specifically stated otherwise).

                              Preliminary Statement

     WHEREAS,  the Borrowers,  the Banks and First Union desire to further amend
the Agreement in the manner hereinafter set forth.

     WHEREAS,  National City Bank wishes to become a  participant  in the credit
facility provided by the Agreement with the Loan Commitment set forth in Exhibit
A hereto.

     WHEREAS, the Borrowers, the Banks, and National City Bank are in agreement.

     NOW, THEREFORE,  in consideration of the premises and promises  hereinafter
set forth and intending to be legally bound hereby,  the parties hereto agree as
follows:

     1. Section 2.1(f) of Agreement.  Section 2.1 of the Agreement  shall be and
is hereby amended to add a new clause (f), which shall be as follows:

          "(f) Maximum Loans to ePLUS. At no time shall the  outstanding  unpaid
     principal balance of (1) Loans drawn by ePLUS and (2) the proceeds of Loans
     drawn by  other  Borrowers  hereunder  and held by  ePLUS,  exceed  (3) the
     aggregate   amount  of  indebtedness   and  obligations  of  other  Persons
     guaranteed by ePLUS in compliance with the limitations set forth in Section
     6.3 hereof"

     2.  Exhibit A to  Agreement.  Exhibit A to the  Agreement  shall be and is
hereby amended and restated to be in the form and substance attached hereto.

     3.  Representations and Warranties.  The Borrowers  hereby affirm all the
representations and warranties made in the Agreement,  including but not limited
to Article 3 thereof,  on and as of the date  hereof as if  originally  given on
such date.

     4. Covenants. The Borrowers hereby confirm that they are in compliance with
and have  complied  with each and  every  covenant  set forth in the  Agreement,
including but not limited to Articles 5, 6 and 7 thereof,  on and as of the date
hereof.

     5.   Affirmation.   The  Borrowers   hereby   affirm  their   absolute  and
unconditional  promise to pay to each Bank and First  Union  National  Bank,  as
agent  under  the  Agreement,  the Loans  and all  other  amounts  due under the
Agreement  and any other Loan Document on the maturity  date(s)  provided in the
Agreement or any other Loan Document, as such documents may be amended hereby.

     6. Corporate Authorization and Delivery of Documents.  Each Bank shall have
received (a) a  certificate  signed by the  secretary or assistant  secretary of
each  Borrower  certifying  all  action  taken by each  Borrower  and any  other
necessary  Person to authorize  this  Amendment,  the  incumbency of the persons
signing this amendment,  and attaching any resolutions  adopted by each Borrower
in connection with said  authorization,  and (b) and such other documents as any
Bank shall  require,  including but not limited to the execution and delivery of
Notes,  as applicable,  conforming with the revised Loan Commitment of each Bank
as set forth in Exhibit A hereto.

     7. Effect of Amendment.  This  Amendment  amends the Agreement  only to the
extent  and in the  manner  herein  set  forth,  and in all other  respects  the
Agreement is ratified and confirmed.

     8.  Reallocation of Loans.  Promptly  following the  effectiveness  of this
Amendment  and the  delivery  to each Bank,  as  applicable,  of its Note in the
amount of its Loan Commitment as set forth in Exhibit A hereto,  the Agent shall
coordinate  with each of the Banks to  provide  for (a)  funding of Loans to the
Borrowers under the Credit  Agreement,  as amended,  equal to its  proportionate
share of the  aggregate  principal  amount  of  Loans  then  outstanding  to the
Borrowers  based on its  Commitment  Percentage  in  effect  as a result of this
Amendment, and (b) application of the proceeds of such Loans to repayment to the
other Banks, in their  individual  capacities,  of Loans by each of them then in
effect  such  that the  aggregate  Loans  of each  Bank  shall  not  exceed  the
proportionate  share of each Bank based on its Commitment  Percentage applied to
the  aggregate  principal  amount  of  outstanding  Loans  by the  Banks  to the
Borrowers on such date.

     9.   Counterparts.   This   Amendment  may  be  signed  in  any  number  of
counterparts, each of which shall be an original, with the same effect as if the
signatures hereto were upon the same instrument.

     IN WITNESS  WHEREOF,  the parties hereto have each caused this Amendment to
be duly executed by their duly authorized  representatives  as of the date first
above written.


                                    ePLUS INC.


                                    By: /s/______________________________
                                    Name:
                                    Title:


                                    MLC GROUP, INC.


                                    By: /s/______________________________
                                    Name:
                                    Title:

                                    MLC FEDERAL, INC.


                                    By: /s/______________________________
                                    Name:
                                    Title:


                                    FIRST UNION NATIONAL BANK, for itself
                                    and as Agent


                                    By: /s/______________________________
                                    Name:
                                    Title:


                                    BANK LEUMI USA


                                    By: /s/______________________________
                                    Name:
                                    Title:


                                    KEYBANK NATIONAL ASSOCIATION

                                    By: /s/______________________________
                                    Name:
                                    Title:


                                    NATIONAL CITY BANK

                                    By: /s/______________________________
                                    Name:
                                    Title:


                                    SUMMIT BANK

                                    By: /s/______________________________
                                    Name:
                                    Title:


                                                                       EXHIBIT A

                     Bank's Loan Commitments and Percentages

                                                                    Rounded
         Bank                               Commitment            Percentages*
         ----                               ----------            ------------

First Union National Bank                   $20,000,000              31%
Lease Finance Group
PA 4827
1339 Chestnut Street - 12th Floor
Philadelphia, PA 19107
Fax No. 215-973-6900

National City Bank                          $15,000,000              23%
Specialized Lending Group,
Philadelphia Region
Location # 01-5997
One South Broad Street
Philadelphia, PA  19107

Bank Leumi USA                              $10,000,000              15%
562 Fifth Avenue
New York, NY 10036
Fax No. 212-626-1329

KeyBank National Association                $10,000,000              15%
34 North Main Street
Dayton, OH 45402
Fax No.  937-586-7695

Summit Bank                                 $10,000,000              15%
750 Walnut Avenue
Cranford, NJ 07016
Fax No.  908-709-5466

                                            ___________
                                            $65,000,000

* Roundings result in a total which is 99%