Microsoft Baseline Security Analyzer 2.1

MBSA 2.1 offers Windows Vista and Windows Server 2008 compatibility, a revised user interface, 64-bit support, improved Windows Embedded support, and compatibility with the latest versions of the Windows Update Agent (WUA) based on Microsoft Update.

MBSA 2.1 is also compatible with Microsoft Update, Windows Server Update Services 2.0 and 3.0, the SMS Inventory Tool for Microsoft Update (ITMU), and SCCM 2007.