How Windows Update Stand-alone Installer (Wusa.exe) Works
This article describes the Windows Update Stand-alone Installer (Wusa.exe) in Windows Vista, Windows 7, Windows Server 2008 and in Windows Server 2008 R2. The Wusa.exe file is in the %windir%System32 folder. The Windows Update Stand-alone Installer uses the Windows Update Agent API to install update packages. Update packages have an .msu file name extension. The .msu file name extension is associated with the Windows Update Stand-alone Installer. Back to the top MORE INFORMATION An .msu file contains the following contents: Windows Update metadata This metadata describes each update package that the .msu file contains. One or more .cab files Each […]
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