Quote Originally Posted by Spartan198 View Post
I'm not really "anti-IE", I just prefer Firefox.

Yeah, if I haven't used a program in six or so months, I tend to remove it in order to better utilize the space left on my HD.

IE was just a special case that I've been wondering about.
You can always try to just delete the files, leave the registry be. A notch more sophisticated would be to delete the files but the main entry point, and replace that entry point with a script named the (case insensitive) same. All the script should do is parsing any arguments to IE and if possible convert that to a parametrized call to the Firefox program. So if any app tries to launch IE it will in fact be tricked into launching Firefox -- though possibly not everything will work in the app that launches the browser.