I don't think that C# is related to any of that. After all, they don't really use it for Windows, at least not for the core. (I'm actually not fully up-to-date.

I don't think that C# is related to any of that. After all, they don't really use it for Windows, at least not for the core. (I'm actually not fully up-to-date. Are parts of the user space stuff now coded in C#? I don't think so...) Btw., interestingly, Apple starts to use ObjC more and more on MacOSX. E.g., since 10.6, Finder (the main fs browser) is a Cocoa application now. I guess the Windows Explorer is still C++?