Find and delete useless pref files. You do not like nasty preferences files? Me neither. That is why I wrote this utility. It contains a timer which scans your pref-folder (Username:Library:Preferences) and tells you when new ones are created. You can variate the time interval but do not forget, Pref-Ex needs some performance to scan your (maybe full of trash) prefs folder. It will simply tell you when it recognized a new pref and gives you the chance to delete it directly.