Shimming Applications on Windows Vista 64-Bit

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Tue, 02 Dec 2008 06:42:40 GMT

re: Shimming Applications on Windows Vista 64-Bit

Aaron Margosis — Thu, 04 Dec 2008 08:47:12 GMT

Related issue involving managed (i.e., .NET) apps: if it was built with VS 2005, it won't have a Vista-aware manifest (trustInfo section, etc), and so Windows will consider it a legacy application, and enable file and registry virtualization -- as long as it is running 32-bit code. So if it specifically compiled for x86, or it's "Any CPU" and running on an x86 version of Vista, file/reg virtualization will kick in and potentially fix up what would be permissions issues. However, the exact same "Any CPU" executable, when run on a 64-bit Vista, will NOT have virtualization enabled - writing to %windir% will result in Access Denied.

re: Shimming Applications on Windows Vista 64-Bit

Arnout — Wed, 07 Jan 2009 12:26:05 GMT

Ah, that explains why I didn't get my own demo app (Visual Basic Express 2008) to work with Vista x64 ;)

Thanks!