I have Regedit.exe and Rundll32.exe set to 'Permit Once', yet they both regularly vanish from my 'Security' list, so I couldn't make adjustment if I wanted to. This never happened with PG 3.150. Is there a bug? A reboot sometimes brings them back. They do not vanish from the Protection list. I'm on XP Home SP2 and have 128 items on the security list.