Now you can download and browse the source code of the .NET Framework libraries (3.5), and easily debug them as well using VS 2008.
Source code (with source file comments included) for the .NET Base Class Libraries include as of now -System, System.IO, System.Collections, System.Configuration, System.Threading, System.Net, System.Security, System.Runtime, System.Text.... etc.
ASP.NET (System.Web), Windows Forms (System.Windows.Forms), ADO.NET (System.Data), XML (System.Xml), and WPF (System.Windows). more will be added in coming months by Microsoft.
You'll be able to download the .NET Framework source libraries via a standalone install (allowing you to use any text editor to browse it locally).
To learn more about our source release plans and how the above debugger integration works, please check out this Podcast that Scott Hanselman and Shawn Burke recently recorded. Shawn (who drove the source project on my team) is also going to be publishing a cool Channel9 video later this week that shows using the VS 2008 integrated debugging support with it.
More on Scott gu's blog .... Cheers - Dipesh
