VS2012 C++ warning C4005: '__useHeader': macro redefinition

Question

While migrating an old C++ project from Visual Studio 6 up to Visual Studio 2012, we came across an odd set of warnings from inside the standard Microsoft platform headers:<

Answer 1

It is still simpler.

Just check the checkbox "Inherit from parent or project defaults" in Configuration Properties → C/C++ → Preprocessor / Preprocessor Definitions → Edit.