On behalf of the Forefront Server Protection team at Microsoft, I am pleased to announce the release of Forefront Security for Exchange Server (FSE) SP2 Rollup 3 and Forefront Security for SharePoint (FSSP) SP3 Rollup 3.
On October 8th, 2010 Microsoft shipped both builds to address a performance issue with version 8 of the Kaspersky antivirus engine.
For a detailed description of the updates please see the following Knowledge Base articles:
Forefront Security for Exchange Server SP2 RU3: http://support.microsoft.com/kb/2420644
Forefront Security for SharePoint SP3 RU3: http://support.microsoft.com/kb/2422053
As the installer runs, server service restarts may be necessary, so please plan accordingly when applying this hotfix rollup.
Sr. Support Engineer