Earlier quoted context omitted.
I’d be interested in reading that.
Tl;dr wince team forked visual studio 6 (I think it was 6, I don't recall it was long ago) to make a custom UI and a tool called platform builder. This was needed because VS didn't have the extensibility needed to do this without source access. The fork got more and more out of date and it is hard to justify spending resources on an internal tool like that. WinCE was incredible but what was shipped to customers was a…
Building applications for WinCE 6 was also only supported with Visual Studio 2005 or 2008, which put a hard cap on available language features and development OS support. I had the thankless job of trying to port C++ code from Linux to WinCE 6 in 2014, and even then VS2008 felt way behind.