do you need AppZapper with Leopard?

[Sic]

You'll find that a LOT of apps that don't come with installers will create folders in either ~/Library or /Library. As Quicksilver says, AppTrap simply alerts you to any files/folders that were created by the app - and whilst there's no need for this application as it emulates functionality that you can recreate yourself in OSX, logic dictates that if there's a (very) low overhead app that'll do it for you, why not use it?

 

[Aspect]

I downloaded AppTrap and it works a treat!

 

[punky_munky]

I can't see the point in getting rid off the pref files. They're usually only a few KB and it's not like Windows where extra crap slow the system down. These files are ignored.