Microsoft has released the MS-DOS 4.00 source code, binaries, disk images, and documentation. The source code, which is nearly 45 years old, has been released under the MIT license, allowing ...

Ten years after releasing the source code of MS-DOS 1.25 and 2.0, Microsoft is making yet another contribution to the world of open-source software preservation. Working in ...

The source code from MS DOS 1.1 and 2.0, as well as Microsoft Word for Windows 1.1a, is made public under a non-commercial license that forbids re-publication elsewhere on the Web.

Microsoft already released MS-DOS 1.25 and 2.0 in 2014, in cooperation with The Computer History Museum. Microsoft open-sources infamously weird, RAM-hungry MS-DOS 4.00 release [ Ars Technica ] ...

We love that the MS-DOS code is now available to the world at large (even if you can't distribute your own changes to it, as with truly open source software). And we love that Microsoft has also ...

The source code Microsoft released this week is not for that multitasking version of DOS 4.00, and Microsoft's Open Source Programs Office was "unable to find the full source code" for MT-DOS when ...

The code itself might also be the hastily updated MS-DOS 4.01, not the truly original release. It’s possible that some of these issues might be resolved, as Microsoft could simply release the ...

We’re not 100% sure which phase of Microsoft’s “Embrace, Extend, and Extinguish” gameplan this represents, but just yesterday the Redmond software giant decided to grace us with the source ...

Last month, Microsoft released a modern remake of its classic MS-DOS Editor, bringing back a piece of computing history that ...

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 ...

Microsoft's version of MS-DOS 4.0 was originally released back in 1986 after a joint development with IBM for portions of the code, and a somewhat difficult relationship between the two at the ...