I've spent the better half of today trying to step into the System.Runtime.Serialization.Json.DataContractJsonSerializer.ReadObject() method, as it appears to be ignoring EnumMemberAttribute decorations. No matter what I do VS 2012 will not step into any .NET Framework DLL. I followed the directions at:
to no avail. Every post that I have found that involves attempting to do this on a Windows 8 machine, has ended in failure. All the posts in the Microsoft forums related to this, state the same thing:
As it stands, there is no possible way to debug .NET Framework code.