I used to use an msbuild addin for VS2008, called "MsBuildAddin" (which was itself based on the now very old Java "NantRunner"). The project page is here and the source is here. It hasn't been updated in a long time, and doesn't work with VS2010 unless you hack the source (which isn't documented at all).
Is there something similar for VS2010? I'm not looking for something different, or more feature-rich, but rather a simple drop-in replacement (if such a thing exists).