http://blogs.msdn.com/b/innov8showcase/archive/2010/02/22/build-improvements-with-net-framework-4.aspxWith the release of .NET Framework 4 and Visual Studio 2010 comes MSBuild 4.0. Among the many great features in this version are new mechanisms to allow you (or your build lab) to extend the default build targets files with your own customizations. Whileen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)