Using Moles with DateTime

Question

I'm starting to using Moles in unit tests and am struggling a little with documentation.

I want to mole DateTime.Now.

If you look around the old way of doing this was to add a reference to mscorlib, then add a stubx file for it (Add New Item -> Stubs And Moles For Testing).

The 'Stubs and Moles for Testing' template has been deprecated, instead all you need do is to right click a reference and select 'Add moles assembly', whch is fine.

VS2010 does not allow you to add a reference directly to mscorlib, because we have a reference to "System", this is ok as I can see DateTime in object browser as part of this namespace.

If I add a moles assembly for the System reference and rebuild I still can't resolve an MDateTime.

Any suggestions ?