It seems like there's an error in reading the preference. If you know how to edit the script, look at line 20 where it says:
code:
Active = Boolean(oShell.RegRead(MsgPlus.ScriptRegPath + Messenger.MyUserId + "\\Antifree"));
it should be:
code:
Active = Boolean(oShell.RegRead(MsgPlus.ScriptRegPath + Messenger.MyUserId + "\\Antifreeze"));
That should fix it.
