I just installed an AppleScript, and I discovered that the keyword was the same than another old script that I didn't use anymore... And I wasn't able to use the new one, until I changed the keyword in the PList file. Then I searched that script folder and deleted it manually, but I don't think the Level 1 Mac User would have done this without problems.
So I think it would be useful to make an Xtras Manager, to be able to see what Xtras are installed, to disable/enable them or simply to remove them.
