By using the QEMU emulator, you can run FreeDOS inside a window on a host operating system. QEMU will emulate a typical x86 PC so that FreeDOS can run. FreeDOS is mostly compatible with MS-DOS, so you will be able to use FreeDOS and QEMU to run some old MS-DOS programs. You could even put FreeDOS and QEMU on your Apple Macintosh. This howto will guide you through the process of installing FreeDOS within QEMU.