How can I disable the Printer PopUp message?
A. Start the Registry editor, and change KHEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Providers and set the entry NetPopup to 0. You should then reboot Windows (however stopping and restarting the print spooler will suffice). If the printer is on an NT server, than this setting needs to be set on the Server which controls the print queue.