How to make a no-cd crack?

I want to try to create a no-cd crack for Morrowind. I have no clue how to begin this though. Do you have any tips on how to do this?

I've read that debuggers can be used to crack programs, so would the debugger that comes with the Windows SDK work for this?

>>3
This book is overhyped and useless for non-Scheme programmers. The obscure and non-intuitive syntax(with plenty of parenteheses) of Lisp + heavy abuse of recursion means people learn bad coding habits. If you want to learn practical programming use a book suited to your language of choice, or a language reference/manual.