Is the built in "Undo" function the only safe way to un-immunize?

[el nemto]

(not related to my other recent topic)

I want to get rid of all the changes spybot's immunize function has made to my registry. Is the Undo function the only way to do this completely, or will removing sites from Internet Options in IE have the same effect?
(not counting HOSTS file entries)

[spybotsandra]

Hello,

You can just undo the immunization.
Or you can also download a new host file on this site:
http://www.mvps.org/winhelp2002/hosts.txt

Where the hosts file is located depends on your Windows version.
Windows 2000/XP/NT: C:\system32\drivers\etc
Windows 95/98: C:\windows\hosts
After that save the file and start your browser again.

Best regards
Sandra
Team Spybot