Seems like Microsoft just open sourced MS-DOS on Github

https://github.com/microsoft/MS-DOS

It ssems like this was already public before but now it's much easier to find

#DOS #Microsoft #OpenSource #DOS4.0 #OperationSystem #GitHub

GitHub - microsoft/MS-DOS: The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes

The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes - microsoft/MS-DOS

GitHub