Needed: A tut on Win Registry

[slugger]

Can anybody please tell me of a book (preferably a free e-book) where I can learn all that there is to learn about Windows Registry, esp the registry of Wink 2k Pro Ed. Like what is the function of each key, how changing value of a certain key changes the performance paramters and such other stuff.
Please help

[anandk]

u can download the windows registry guide from
http://www.winguides.com/