| Summary: | This security update is rated Critical for Microsoft XML Core Services 3.0 on all supported releases of Windows XP, Windows Vista, and Windows 7; and Moderate for Microsoft XML Core Services 3.0 on all supported releases of Windows Server 2003, Windows Server 2008, and Windows Server 2008 R2. For more information, see the subsection, Affected and Non-Affected Software, in this section. |