05.144.2007 - You receive an access violation error and the system may appear to become unresponsive when you try to install an update from Windows Update or from Microsoft Update (KB927891)

This is a reliability update. This update resolves an issue in the Windows Installer (MSI) that can affect performance during software updates. - Download Update for Windows XP - Download Update for Windows XP x64 Edition - Download Update for Windows Server 2003 - Download Update for Windows Server 2003 x64 Edition - Download Update for Windows Server 2003 Itanium-based Systems - View Microsoft Knowledge Base Article - 927891 - Visit Microsoft Corporation