When it comes to understanding of internals nothing can beat ILDASM. ILDASM basically converts the whole exe or dll in to IL code. To run ILDASM you have to go to "C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\Bin". Note that i had v2.0...
This is my personal blog and i write articles on .Net, WPF, C#, OOPS, Threading and other .Net technologies. This is not related to any of my employer and organizations. This is the result of my personal interest.