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

Several times in the last couple of decades, Microsoft has released source code for the original MS-DOS operating system that kicked off its decades-long dominance of consumer PCs. This week, the ...

Microsoft releases earliest known DOS source code

DOS, Microsoft is releasing the earliest known source code listings – transcribed from yellowed continuous printouts.
CRN

Microsoft Depends On Shared Source, Dips Toe In Open-Source Waters

Jason Matusow, director of the Shared Source Initiative, said Microsoft would continue to add to the 20 products that it currently makes available for source-code inspection. Matusow was a session ...
Neowin

Microsoft open sources GitHub Copilot in Visual Studio Code

Microsoft has decided to open source its GitHub Copilot tool in Visual Studio Code. It has also shared some exciting developments. On the opening day of its BUILD 2025 conference, Microsoft has ...
Radio Free Europe/Radio Liberty

Suspected Russian Hackers Behind Massive Breach Accessed Microsoft's Source Code

Suspected Russian government hackers behind a massive intrusion of government and private company networks were able to gain access into Microsoft’s source code, a key building block for software or ...