VSDevEnvVersion Property MSBuild Extension Pack Help 4.0.12.0
The version of Visual Studio to run, e.g. 8.0, 9.0, 10.0. Default is 9.0

Namespace: MSBuild.ExtensionPack.VisualStudio
Assembly: MSBuild.ExtensionPack (in MSBuild.ExtensionPack.dll) Version: 4.0.0.0
See Also

Reference