VS2010 was built with WPF ?

Version one of Visual Studio was written years before .Net was a spark or anything in Microsoft. I wonder how much of the current version (2010) is unmanaged code. I wonder if all of the C# compiler is written in C# (or some managed environment language) or if some of the C# compiler is written in C++.

Nearly everything(not all of them) is developed with WPF Technology.Thats right.