- Open Visual Studio
- Go To "Menubar --> Tools --> External Tools
- Click "Add"
- Enter Information:
Title: Visual Studio 2008 Command Prompt
Command: cmd.exe
Arguments: %comspec% /k ""C:\Program Files\Microsoft Visual Studio 9.0\VC\vcvarsall.bat"" x86 - Click "Ok" and you are done.
Refer This Link
http://www.c-sharpcorner.com/uploadfile/rmcochran/running-the-command-prompt-from-visual-studio-tools-menu/
For
cannot be opened because its project type (.csproj) is not supported by this version of the application.
Go to Start> All Programs > Visual Studio 2008 > Visual Studio Tools > Click Visual Studio 2008 Command Prompt. Type the below command and press enter.
devenv.exe /resetskippkgs
It opens Visual Studio 2008 IDE and finally everything was OK .
Refer this Link
http://anandranjanp.blogspot.in/2010/01/cannot-be-opened-because-its-project.html
