Two MicroSolutions Backpack devices can share the same printer port with a printer. I have had as many as four attached, although this is not a good idea if you intend to use a printer too. I have not tried this with devices from different vendors. Tom Turak [log in to unmask] ------------------------- Hi All: Has anyone ever successfully used two "pass through" devices on one parallel port without a switch--in other words through one and then through the second and then to the printer (eg-Lpt1 to a parallel Zip Drive to a parallel scanner, and then to the printer). Is it even possible? Jeff Mayem ([log in to unmask])