USB driver without installing Active Sync?

[Automaton]

Is it possible to install the non-standard USB driver without having to install Active Sync?

Is it possible to tweak the phone so it shows up as a standard USB device that can use a built-in driver on Windows XP?

Main goal here is to transfer files to and from the phone and have the phone show up as a removable drive in Windows XP. Having to install software on every PC I might encounter just to have the phone show up as a drive is not an option.