.VBPROJ File Extension

Visual Basic project file created with Microsoft Visual Studio; saved in an XML format and contains information about the project, such as the application platform, version, and related files.

NOTE: Some projects created with earlier versions of MS Visual Studio may not be recognized by Visual Studio 2008. If this happens, it may be possible to update the VBPROJ file by running the Visual Basic Upgrade Wizard (vbu.exe) included with Visual Studio.