BizTalk project fails at being created
It seems that Visual Studio 2008 updates may break BizTalk projects creation. To fix this situation you need to edit a system registry value. On x86 machines set the following:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\9.0\Projects\FAE04EC0-301F-11d3-BF4B-00C04F79EFBC}\PossibleProjectExtensions="csproj;btproj"
on x64 machines set the following:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\9.0\Projects\FAE04EC0-301F-11d3-BF4B-00C04F79EFBC\PossibleProjectExtensions="csproj;btproj"