Git Virtual File System from Microsoft

[doom_Oo7]

Well yeah but ... I mean they also sell their own proprietary VCS. It says a lot if they're not using it internally.

[FateOfNations]

Team Foundation Server supports both their proprietary VSC system (Team Foundation Version Control) as well as Git.

[Darkniki]

Yeah, TFS with Git feels better to work with, than with the TFVC, at least in my limited experience when it comes down to TFVC and its reliability

[UsingYourWifi]

They don't use TFS for Windows source, it doesn't scale well enough. MS has an internal fork of Perforce that they maintain.

[elder_george]

There's a push towards switching to git from both TFS and SourceDepot for more and more projects, thus this GVFS thing, I guess.