FreeDOS is an operating system that can run MS-DOS programs natively and will appeal more to enthusiasts. DOSBox is an emulator that simplifies running MS-DOS programs but comes with some ...

The DOSBox emulator lets you run your DOS games and software again. It's free and open source, so you won't have to pay just to use programs you already own.

A MS-DOS emulator called DOSBox has been ported to the BlackBerry PlayBook, allowing it to run Windows 3.1.