Cabbing is easy with that cabwize program so long as you're doing one thing. I am not successful at cabbing reg edits and frankly I feel safer going in and make the changes unless its cabbed already (Not one that needs cabbing) cause I just seem to miss something ..
Anyway.. Cabwize will give you the chance to just select all the files and point to the windows directory (or whatever directory they should go into) and it cabs right up and works great for those files that are hard to overwrite with drag/drop technique. I am not successful at making a cab that has files going to more than one location.. but it could be user inexperience...