Ever want (or need) to know how the .NET Framework is working under the covers? Thanks to the new “Open Source” Microsoft, viewing the framework code is easier than ever.

But what if you are not using an open source version of .NET? Use a decompiler such as ILSpy or dotPeek.

Some useful Links
Decompile using ILSpy
If you can’t find the source code above, or just want to quickly look at the version you are using: