How do I disable supernatural?

I've been using my own version of a pack selector with my Steam install: I delete the registry entries for the packs I don't want loading. (The pack selector does the same thing, but it doesn't recognize the Steam registry entries; that's where I got the idea.) I saved the two relevant sections of the registry before I ever did this, and when I want my packs to load again, I restore those sections, which is as simple as double-clicking a couple of files I have sitting in Documents.

I did not save the entire registry, I mean I did but I don't restore it, since that would revert any changes made for other apps as well. And I wouldn't recommend this for someone who's not comfortable with the possibility of breaking stuff. But it is a lot easier than constantly uninstalling and reinstalling the packs, which would involve cleaning the registry anyway.