...as are printers, which is the original problem. Windows really needs a "Make this printer available to all users of this computer" checkbox. The problem with that is that the remote printer is secured by user credentials, not computer credentials, meaning that you could potentially have a default printer that you don't have permission to print to. Confusing.

There's probably a sensible solution. I wonder if anything in Windows 7 has changed this? I've not had a chance to play with it yet...