During patch uninstall, the patch's modification to the MSI's view is no
longer available, so what you see is "by design".

Windows Installer 4.5 added something called "Custom Action"/"Patch
Uninstall" behavior (I don't remember the order of the terms, use both
strings in your search query). The PatchUninstall attribute of the
CustomAction element taps into that mechanism.

-----Original Message-----
From: Anurag Pahwa [mailto:apa...@microsoft.com] 
Sent: Tuesday, February 09, 2010 1:37 PM
To: General discussion for Windows Installer XML toolset.
Subject: [WiX-users] Question regarding the behaviour of custom actions
during patch uninstall

Hi,

I've scenario where I've added a couple of custom actions as part of the
patch and sequenced them in during install as well as the uninstall. Now
during patch install the custom actions are executed properly but during
patch uninstall none of the patched custom actions are executed. Is this by
design?

Thanks
Anurag

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