The following stdafx.h for a vanilla console app kills the beta 2 compiler (I think it creates a corrupt PCH file): #pragma once #define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers #include <windows.h> #include <tchar.h> // BOOST --- #include <boost/multi_index/sequenced_index.hpp> #include <boost/multi_index/ordered_index.hpp>