[larrywright]

I used VSS in the 90s as well, it was a nightmare when working in a team. As I recall, Microsoft themselves did not use VSS internally, at least not for the majority of things.

[hpratt4]

That’s correct. Before SD, Microsoft orgs (at least Office and Windows; I assume others too) used an internal tool called SLM (“slime”); Raymond Chen has blogged about it, in passing: https://devblogs.microsoft.com/oldnewthing/20180122-00/?p=97...