The Microsoft Tool Nobody Remembers… That Changed Software Forever
Long before Git and modern version control, Microsoft built a tool called Delta.
Almost no one remembers Delta, but its ideas still shape how we build, update, and version software today.
In this video, I look at Microsoft Delta from the early 1990s: how it worked, where it came from, and why it did not succeed, even though it solved a real problem for Microsoft at the time.
We will look at its roots in Microsoft's internal Source Library Manager, how it was built for the Windows 3.1 and MS-DOS era, and why its timing, just before the move to Windows NT, became a major limitation.
This is not just the story of a forgotten tool. It is about how software development changed in the early 90s, and how Microsoft tried to turn an internal solution into a commercial product.
If you have ever used version control, committed code, or installed a software update, you have seen the legacy of ideas like this.
00:00 Intro
00:13 Microsoft SLM
03:32 Microsoft Delta Installation
04:38 Bad Review
07:04 One Tree Software
08:48 Team Foundation Server
09:50 Aquisitions
10:44 Legacy