Suppose you've VC6.0 installedFile-->New---> Choose Either of 1, Projects Tag--> Win32 Console Application 2, Files Tag--> C++ Source File Then you can do basic C/C++ programming. If you want to see the output, just press F5(Debug mode) or Build-->Rebuild All to make the executable. C++ is back-compatible with C (C++ is a super-set of C) so do not worry whether the file extension is .c or .cpp but for O/S module, you'd better do C programming in UNIX since there are some functions(system calls terminologically) which are specific to the O/S, and cannot be recognised by VC..