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[Stefan Krueger]

Microsoft's recent Security Updates for Visual Studio break Windows Installer Updates

The typical symptom is missing or not updated files after you install a Small or Minor Update to your application (Major Upgrades are not affected). In the installer log file you'll notice that some features have been switched to "advertised" state and instead of being installed locally. The actual cause is noted in the SELMGR error message in the log similar to this:

SELMGR: ComponentId '{-GUID-}' is registered to feature '-Feature-Name-', but is not present in the Component table. Removal of components from a feature is not supported!

This happens if your setup includes a merge module like Microsoft_VC80_CRT_x86.msm and you rebuilt your setup package after installingsecurity updates 971090 and 973673 for Visual Studio 2005 SP1 or 971092 and 973675 for Visual Studio 2008 SP1. These security updates install newer versions of merge modules.

More details can be found in my blog.