I love that they specify that they're not accepting pull requests.

The MS-DOS v1.25 and v2.0 files were originally shared at the Computer History Museum on March 25th, 2014 and are being (re)published in this repo to make them easier to find[.]

Ignore them. Send a pull request with the full source of Arch Linux.

LOL, some of the comments in the source are gold.

https://github.com/microsoft/MS-DOS/blob/main/v4.0/src/DOS/ABORT.ASM

Note:  We do need to explicitly close FCBs.  Reasons are as follows:  If we
; are running in the no-sharing no-network environment, we are simulating the
; 2.0 world and thus if the user doesn't close the file, that is his problem
; BUT...  the cache remains in a state with garbage that may be reused by the
; next process.  We scan the set and blast the ref counts of the FCBs we own.
;
; If sharing is loaded, then the following call to close process will
; correctly close all FCBs.  We will then need to walk the list AFTER here.
;
; Finally, the following call to NET_Abort will cause an EOP to be sent to all
; known network resources.  These resources are then responsible for cleaning
; up after this process.
;
; Sleazy, eh?~

i remember writing .bat files and pretending they were really fancy update scripts when i was like ten they did nothing but it was still fun :)

I guess we now have a timeframe in which to expect the release of Windows.

FreeDos is better anyways

MS-DOS, Source public available on March 25 2014 with MS Research License, released with as Free Software MIT license in 2018, this yer released as Open Source MS-DOS 4.0. Anyway, the Source code was available since 2014, only different licenses since then.

Take that FreeDOS!

Cool, but why's that all of a sudden?

What's the use case that would upset Microsoft the most?

So cool, thanks. As a kid I spent so much time in DEBUG, stepping through DOS's executables, and especially the Interrupt handlers. It's so neat to see the actual source code-- way easier to read and follow. I didn't know it was all written in assembly, from within Debug it sometimes seemed so messy and convoluted that I just assumed more was written in C.

Look at them, embracing open source like this, how wonderful.

when rust

Where is the ctrl+alt+del function defined? I just want to see what made that sequence work. I'd also be interested in where ctrl+break is defined.

Woah MIT license. That’s a lot more permissive than I expected.

!remind 10 years when they will release the source code of Windows 3.0 for non-commercial use

(3.11 will take another 10 years)

Wake me up when they open source Windows 10/11.

Would this have Bill’s code in it ? Or was he off the shop floor by then ??

6.22 or foff

https://github.com/microsoft/MS-DOS/blob/main/v4.0/src/DOS/CTRLC.ASM
; The user has returned to us.
So ominous.
; Well... time to abort the user.
Goodbye

How much you wanna bet that a select few turbo-nerds are racing to debug it or something.