Hackers rejoice. Microsoft has just released the source code for three of its most famous operating systems. Unfortunately for cyber thieves the operating systems are MS-DOS 1.1, 2.0 and Windows 1.1a.

A forensic computing researcher may have settled one of tech's longest standing controversies: whether the original version of Microsoft's seminal MS-DOS operating system contained code copied from an ...

Facepalm: Microsoft deserves kudos for open-sourcing the MS-DOS 4.00 source code, shedding light on an important milestone in computing history. But the tech giant has bungled the release in a way ...

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FreeDOS, the free and open-source alternative to Microsoft DOS (MS-DOS), just released a new major update. It still has excellent compatibility with MS-DOS software, including Windows 3.1 and earlier, ...

After a lot of debugging, [Seth Kushniryk] has managed to get the last issuess shaken out of his port of MS-DOS 2.0 to the Apple II, and has released the project to the public. If you have the ...

Editor’s note: After this article was published, Microsoft issued a statement clarifying that cmd.exe will not be going away after all. Read Steven J. Vaughan-Nichols’ follow-up column. My very first ...