Fix build by commit 072965eb0 for modules: EXPLORER, COMCTL32, IERNONCE, URLMON, USER32_(API|WINE)TESTS Note that some of these modules (from Wine) already have the OEMRESOURCE defined; however, only in one of their files. But we have added precompiled headers for them where we have included either windows.h or winuser.h in them, without OEMRESOURCE. The result is, that when compiling these modules with PCH support, the OEMRESOURCE define was _not_ satisfied and thus, compile errors arose. Fix this by adding #define OEMRESOURCE before the windows headers also in the precompiled headers we have added for these modules.