I''m now trying to learn DirectShow to work together with DirectDraw, where you need to work with the CUnknown interface. The problem is, when I try to link the strmbasd.lib file, it needs just 2 external symbols (__imp__sprintf and __imp__strrchr). These are resolved in the file msvcrt.lib, but when I try to include this one, it conflicts with the standard libraries (double definitions). I can''t disable these standard ones because I need these for my file I/O functions. I''ve tried many libraries, but none seem to work with each other. Is it possible to make a library that just resolves the externals I need? Sludge Software www.sludgesoft.com Developing a secret of mana style role-playing-game

Try building your project as a multi-threaded app (from project->settings).

Life''s a journey, not a destination... - S. Tyler