NULL for szUserSid defaults to using the caller's SID Enumerate all visible applications in all contexts for the caller. MSIINSTALLCONTEXT dwInstallContext = MSIINSTALLCONTEXT_NONE In this example, the application's installation package is located at "\\server\share\products\example\example.msi" and the application's ProductCode property is " ĭWORD dwapplicationSearchContext = MSIINSTALLCONTEXT_ALL
When using /i, the patched application can be identified by the path to the application's package (.msi file) or the application's product code. The following sample command line removes an uninstallable patch, example.msp, from an application, example.msi, using the MSIPATCHREMOVE property and the /i command line option. You can uninstall patches from a command by using msiexec.exe and the Command Line Options.
UNINSTALL HF PAPPLOC PATCH
Uninstalling a patch using MSIPATCHREMOVE on a command line The installer searches for patched products in the following order: per-user managed, per-user unmanaged, per-machine. When you invoke an uninstallation of a patch by any of the following methods, the installer attempts to remove the patch from the first product visible to the application or user requesting the uninstallation. Patches applied using a version of Windows Installer that is earlier than Windows Installer 3.0 are not uninstallable. When using a Windows Installer version less than version 3.0, removing patches requires uninstalling the patch product and reinstalling the product without applying the patch. The patch must be an uninstallable patch. Beginning with Windows Installer 3.0, it is possible to uninstall some patches from applications.
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