access bdos cabs cgets chdir chmod chsize close cprintf cputs creat eof exec fgetchar filelength fputchar ftime getch getche getcwd hypot isascii isatty isodigit itoa kbhit lseek ltoa makepath memccpy memicmp mkdir open putch putenv read rmdir setmode spawn splitpath stat strcats strcmpi stricmp strlwr strncat strnicmp strnset strrev strset strtime strupr tell ungetch unlink write conio.h direct.h dos.h fcntl.h io.h malloc.h memory.h process.h search.h stat.h timeb.h types.h