Just a quick one, but it took me a while to figure this out. Hopefully this can help someone else out.
To get MSpec working with ReSharper you need to copy all the MSpec dlls into the resharper’s plugins folder, so you end up with:
ReSharper/bin/plugins/machine.specifications/<dlls here>
Make sure you delete whichever one of the ReSharperRunner dlls is not your ReSharper version!
Enjoy 
