When I began using Microsoft Fakes, I was excited to start shimming some .NET methods. I was lead to believe that I would be able to shim ANY .NET method, static or not: http://
I also had the same problem.
My System.fakes and mscorlib.fakes looked like this :
and
System.fakes
mscorlib.fakes
and after saving the files I Rebuild the solution. And now I have ShimBackgroundWorker.