MS does what benefits MS.  That's why they make it easy to use Linux tools and files on Windows, but not the other way around<br>They greenwash themselves by releasing here and there useless things like MSDOS or calculator as open source. Other than that they only do something for the open source community if they're benefit themselves like with .NET Core. <br>But they will never ever release a somewhat recent core technology under a free license. <br>But I'm always open to get corrected: Release DirectX 12 and prior under a free license and I'll draw my hat,(reply>), What I'd love to see is Windows XP released to the community.<br>Imagine having an actually free Windows platform.<br><br><br>but that's never going to happen.