What programming language was Windows Vista programmed in?

Question

Which programming language(s) were used to code Windows Vista?

Answer 1

From working with the Windows CE operating system I'd say its a mix of C for the old school code and interfaces, and a lot of C++ behind the scenes for drivers and other code. It (WinCE) uses C++ in the drivers behind a C interface to the rest of the system.

Now I'm going to guesstimate and say there are many bits of C# and other code in it now as well.