TERMINATION AND SETTLEMENT AGREEMENT

Exhibit 10.75

TERMINATION AND SETTLEMENT AGREEMENT

This Agreement (the “Agreement”) is entered into as of October 20, 2003 (the “Effective Date”), by and between Microsoft Corporation, a Washington corporation (“Microsoft”), and ePresence, Inc., a Massachusetts corporation (“ePresence”).

For valuable consideration, receipt of which is hereby acknowledged by both parties, the parties agrees as follows:

1. Payment . On the Effective Date, ePresence shall pay to Microsoft the sum of $6.5 million by wire transfer to an account designated by Microsoft.

2. Termination . As of the Effective Date, the Alliance Agreement dated as of January 8, 1999, as amended, between Microsoft and ePresence (the “Alliance Agreement”) shall terminate and neither Microsoft nor ePresence shall have any further rights or obligations thereunder, except that the provisions of Sections 8.1, 9, 11, 12 and 14 (oth