How to get source code of .NET libraries to VS

Question

I was told that Microsoft has released reference source code for some .NET libraries (I'm especially interested in C# libraries). If it is true, I would like to download that code and use it with my VS, so I can browse the code by selecting

Go to Declaration

and

Go to Implementation

from context menu. It would be much better then just to see documentation in object browser. So how do I get VS to work with it? Thank you.

Answer 1

Up-to-Date answer

All you need is this: http://referencesource.microsoft.com/

Answer 2

Here's an article on MSDN and you may also checkout the following article and this blog post also. This allows you to step through the framework source code while debugging your applications. Reflector is also a good tool for browsing through the compiled assemblies.