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 open-sourced 86-DOS 1.00 source code on GitHub for its 45th anniversary, according to PCWorld, including kernel and PC-DOS development snapshots. This historically significant software, ...

Editor's take: Microsoft continues to tightly control the release of some of its most important pieces of legacy software. While enthusiasts and programmers are eager to see newer versions of MS-DOS ...

Microsoft finally open sources DOS 1.0 - and it's so much more than the code ...

Today Microsoft is announcing a major step forward in AI-powered cyber defense: a new multi-model agentic scanning harness ...

Microsoft has published the earliest-discovered version of the DOS operating system on an open-source GitHub repo. This comes after MS-DOS 1.25 and 2.x were open-sourced in 2018 and the source for ...

On Wednesday, Microsoft started rolling out security patches for two Defender vulnerabilities that have been exploited in ...

Former Windows boss reveals why modern Windows 11 apps feel slower, says Microsoft once gave every engineer a stopwatch.

For the 45th birthday of 86-DOS, Microsoft is releasing the earliest known source code listings – transcribed from yellowed continuous printouts. Microsoft has released the oldest known source code ...

Microsoft just released the source code for 86-DOS 1.00, made available as an open-source project on GitHub. The release marks the 45th anniversary of 86-DOS 1.00, created by Tim Paterson, which would ...