If you use ZENworks, this is a nifty tool for you to offer your users: USB Drive Letter tool.
It enables users to select an unused drive letter. I put the tool in the Public directory on my server and then put an application object in the application launcher.
Here’s what the tool was created for:
“Getting USB Devices to work under Windows XP” USB devices can give some problems in combination with NetWare mappings. Our restricted users cannot use diskmanager to change drive letters. Therefore, I created a small tool so restricted users can change the drive letter of their USB device.