VSTS 2010 MsBuild Extension Pack TfsSource and Win32Exception: The system cannot find the file specified

I came across this error while trying to check out a file using MsBuild under TFS2010. The error message is misleading because your first inclination is to check the ItemPath or WorkingDirectory in the task. Had I not come across this forum post I may have been stuck for a bit http://msbuildextensionpack.codeplex.com/Thread/View.aspx?ThreadId=74209. The current version of the Extension Pack has some hard coded paths in the task that tell it where to find the tf.exe file. After taking a look at the source code I found if you just add the following path to your Path environment variable the task will function properly.

C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\