Microsoft open-sources "the earliest DOS source code discovered to date"

Posted by DamnInteresting 20 hours ago

Microsoft open-sources "the earliest DOS source code discovered to date"(arstechnica.com)

https://opensource.microsoft.com/blog/2026/04/28/continuing-...

401 points | 139 commentspage 4

Tanayk07 16 hours ago|

[flagged]

dooosss 18 hours ago||

Too little, too late.

signa11 19 hours ago||

in the words of mr. mitch-hedburg “here, you throw this away“

TedDoesntTalk 17 hours ago|

He could have sold those printouts instead of giving them away.

theanonymousone 13 hours ago|

I'm wondering whether ReactOS can exploit Claude et. al. to their fullest and "recreate" Windows 2000/95. I may donate some tokens for that cause.

CursedSilicon 13 hours ago||

That sounds like a terrifying legal minefield that they would not want to tread

theanonymousone 13 hours ago|||

Is it not safe to assume Window source code is not present in the LLM training data?

stavros 13 hours ago||

No: https://archive.org/download/windows-source-code

xandrius 11 hours ago||||

Slap a fair use on it and call it a day.

rvnx 9 hours ago|||

> Anthropic offers a formal copyright indemnification policy for its enterprise customers using the Claude API. The policy protects businesses from copyright infringement claims arising from authorized use of Claude or its generated outputs

So just claim it is Claude

greenbit 10 hours ago|||

What's that phrase, "derivative work" or something?

leni536 12 hours ago|||

But surely anything the LLM outputs is clear of licensing requirements /s

Or would Microsoft like to argue otherwise in court?

leobuskin 13 hours ago||

I've used Claude to fix/reconstruct & build leaked Win2k3 on Linux with original toolchain via Wine. This approach included full gdi sources reconstruction. I just don't know what to do with this, it's kinda difficult to "wash" on this scale