Fix dll import for CoCreateInstanceApp 

As mentioned in previous pull request, now you have single commit instead.

According to this link : http://msdn.microsoft.com/en-us/library/windows/desktop/hh404137(v=vs.85).aspx

It says that function is available for desktop, store and phone, so certification should not be a problem (I suspect ole32.dll reference might be needed for windows 7 desktop support, but I can't test that right now).