This is a good introduction .For more details on the internals I find these very good. [1]http://www.codemachine.com/articles.html http://www.codemachine.com/a

This is a good introduction .For more details on the internals I find these very good. [1]http://www.codemachine.com/articles.html http://www.codemachine.com/articles.html [2]http://advancedwindowsdebugging.com http://advancedwindowsdebugging.com -is a very good book for user mode debugging