gazihan wrote: I want to use new.h in most of the cpp files, so I guess what I did is apropriate. Okay! If you are including new.h inside stdafx.h, then do not include new.h in any of your cpp files, since by including stdafx.h you implicitly include new.h as well. Regards Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me :-)