using tc4.5 on windows xp...for many programs compiled,it shows error: BGI graphics not supported under windows...
plz help me run these programs..

Try winbgim or winBGI libraries - BGI for Windows (search Google).
Regrettably (or fortunately), I have never used these libraries...

commented: using the legacy API's , good recycle of legacy expertise. +1

Are you building the programs as Windows application or console app? I've had no trouble with BGI on XP when built for console.