if i try to open in windows xp it will not work but it works on DOS

it should have been corrupted reinstallation may corrects the problem

Your post is too generic, please specify better the problem you are facing, otherwise nobody can give you help.

http://en.wikipedia.org/wiki/Turbo_... The last version of Turbo C++ was released prior to Windows 9x, it was never meant to be run on anything but **-DOS. Windows XP has no Standalone MS-DOS subsystem it only has a "DOS Virtual Machine", hence why it will not play nicely. There is a Win32 Version: http://www.turboexplorer.com/cpp but anything XP is outside the spirit of the DOS Forum

It might help to say what version of c++. But most should run in winders or DOS. Oddly, turbo loads command.com when in NT5. [tcc v 1.01] ===================================== If at first you don't succeed, you're about average. M2