nixCraft 🐧
This repo contains the original source-code and compiled binaries for MS-DOS v1.25 and MS-DOS v2.0, plus the source-code for MS-DOS v4.00 jointly developed by IBM and Microsoft. https://github.com/microsoft/MS-DOS #opensource
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

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Apr 26, 2024 at 1:05amWeb
Show threadKevin Karhan Apr 26, 2024

@nixCraft also they did license it under the permissive #MIT license, and not some "non-commercial only, non-derivative educational use only" #freeware-esque license...

I hope the folks at #FreeDOS can use that to optimize compatibility even more...

Show threadExperiencersInternational  🇵🇸Apr 26, 2024
@kkarhan this all came from research that starfrost was doing into old Microsoft stuff btw, nobody's really thanking him from the articles I've seen and some people aren't linking to the actual announcement articles
Show threadExperiencersInternational  🇵🇸Apr 26, 2024
@kkarhan recommend people to read this

https://starfrost.net/blog/001-mdos4-part-1/index.html
The history of Multitasking MS-DOS

Show threadKevin Karhan Apr 27, 2024
@experiencer thx for pointing that out so I boosted it as well...
ExperiencersInternational :lidl: 🇵🇸 (@experiencer)

@[email protected] this all came from research that starfrost was doing into old Microsoft stuff btw, nobody's really thanking him from the articles I've seen and some people aren't linking to the actual announcement articles RE: @[email protected] also they did license it under the permissive #MIT license, and not some <i>"non-commercial only, non-derivative educational use only"</i> #freeware-esque license... I hope the folks at #FreeDOS can use that to optimize compatibility even more... RE: ...

Lethal Lava Land
Show threadHatsuApr 26, 2024
@nixCraft that's so cool. I'm definitely gonna take a look at the source code later.
Show threadT Alex BeamishApr 26, 2024

@nixCraft This is awesome. I met up with a guy in Miami who worked on versions of DOS -- Tony I. Just spent a little time trolling through the files trying to see if any of his comments were there, but it may be a little before that time.

Writing (and debugging) assembler was not for the faint-of-heart.