Microsoft released the source code for MS-DOS versions 1.25 and 2.0 through the Computer History Museum in March 2014. This was also intended as a historical document summarizing 'how MS-DOS was born.

Last month, Microsoft released a modern remake of its classic MS-DOS Editor, bringing back a piece of computing history that first appeared in MS-DOS 5.0 back in 1991. The new open source tool, built ...

Before Microsoft released MS-DOS, there was 86-DOS. Now version 0.1 is online thanks to a hobbyist’s archival work. By Andrew Paul Published Jan 5, 2024 2:13 PM EST Get the Popular Science daily ...

TL;DR: Microsoft will likely never release the original source code of Windows into the wild, but the company is clearly interested in sharing important episodes of its software development history.