I am working on a custom version of windows. Can someone provide a list of files to hack and what they on Windows? Any help will be appriciated.

Depends on WHAT you want to hack. There's a million things tweakable/hackable! Until you tell what it is you're trying to do, meaningful help can't be given.

For example, you might want to hack the boot-menu of the CD-menu loader. Or you might look to hack the entire set of UI to look uniform. Or the setup process. Or the Boot-screen/theme/logon/TCPIP.SYS/theming engine/blah-blah-blah

WHAT are you trying to do, and what's the hack for? And searching should give a pretty good list of what each file does and how to modify it, because not everybody would like to re-state what's been said in posts earlier.

I want to hack everything I want to make it a truely original windows.

Take a look HERE. Download and you will have a good example on what files to hack

I also wanted to make my own personal XP, and I did it!

Thanks!! Im downloadin the file now...