Gets the project root directory. Used for evaluation of relative paths and setting the current directory during build. Is never null: projects not loaded from disk use the current directory from the time the build started.
MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.
Assembly: Microsoft.Build (in Microsoft.Build.dll)