It sounds safe to delete them. Note that Spybot has an undo facility in case something goes wrong.
When I do a seach with S&D, two problems occur that are not checked so I do not have them repaired. They are BlackWeb lite and MiniBug. Both are red-problem problems. They seem to be registry related. May I check them to repair without destroying my system? The BlackWeb lite has over 60 errors and the MiniBug about five problems. Any suggestions or help? Thanks, Paul