Liliputing

Microsoft releases source code for MS-DOS 4.0 (and Multitasking DOS)

A decade after releasing the source code for MS-DOS 1.1 and MS-DOS 2.0, Microsoft has open sourced a (slightly) more recent operating system: MS-DOS 4.0. First released in 1988, you can now download ...
heise online

Microsoft releases source code for MS-DOS 4.0

Microsoft has once again made the source code of a version of its ancient MS-DOS operating system available for download. Originally, an English researcher named Connor "Starfrost" Hyde wanted to talk ...
Ars Technica

Microsoft open-sources infamously weird, RAM-hungry MS-DOS 4.00 release

Microsoft has open-sourced another bit of computing history this week: The company teamed up with IBM to release the source code of 1988’s MS-DOS 4.00, a version better known for its unpopularity, ...
InfoQ

Microsoft and IBM Release MS-DOS 4.0’s Source Code under the MIT License

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Cory Benfield discusses the evolution of ...
GIGAZINE

The fast and lightweight text editor for MS-DOS 'VZ Editor' is now open source and available on GitHub

VZ Editor, a popular text editor for MS-DOS, has been made open source 30 years after its last update, and the source code and image files have been made public on GitHub. VZ Editor was released in ...