Visual Studio cannot create a BizTalk Project

You can create a project after installing biztalk2009, but you cannot create a BizTalk project after a few days ......

This is because the automatic update of Visual Studio is not disabled after BizTalk is installed. The Registry will be updated during the update process, specifically:

When it is a 32-bit System

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ visualstudio \ 9.0 \ projects \ {FAE04EC0-301F-11d3-BF4B-00C04F79EFBC}]

When it is a 64-bit System

HKEY_LOCAL_MACHINE \ SOFTWARE \ wow6432node \ Microsoft \ visualstudio \ 9.0 \ projects \ {FAE04EC0-301F-11d3-BF4B-00C04F79EFBC}

Remove the subitem from:

"Possibleprojectextensions" = "csproj"-after VS is installed, the key value is csproj.

To:

. "Possibleprojectextensions" = "csproj; btproj"-after the BizTalk project is installed, the key value should be csproj; btproj

After the modification is complete, VS can create a new BizTalk project!