DJGPP CWSDPMI DJGCC Process.h SETEDIT Allegro (software library) GnuWin32 EMX (programming environment) Spawn (computing) SmallBASIC DOS extender Conio.h KMPlayer MPlayer Arachne (web browser) Gambas CPython Interix Dillo List of compilers Free Pascal POSIX QEMM DR-WebSpyder Data General Bash (Unix shell) DOS Comparison of cryptography libraries Uname Comparison of TLS implementations Timeline of DOS operating systems