VS2008 fails to compile old C++ projects

Suddenly compiling any VS2008 native C++ DLL project fails. They have in common that the call the Manifest Tool mt.exe. When this tool is called it always crashes with the message

mt.exe has stopped working

The interesten fact is that t开发者_高级运维he command line for the manifest tools is always

/nologo /outputresource:"..\FooDll\Release\FooDll.dll;#2"

independent from the settings in the project properties. When I create a new native C++ DLL the command line changes appropriate to the settings. The manifest is treated somehow like a resource.

What is this ;#2 and how can I find and remove the problem?

The .NET setup was corrupt. Found this with this tool: http://blogs.msdn.com/b/astebner/archive/2008/10/13/8999004.aspx