• Matriks404@lemmy.world
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    10 months ago

    Only MS-DOS 1.25 and 2.0 are open-sourced under MIT license, anything newer is not. These versions were pretty bare-bones, only DOS 2.0 implemented directories for example.

    Unless you mean FreeDOS, which is an open-source DOS-based operating system, which generally should work with any DOS programs/games, but it still may not be 100% compatible with some proprietary software.