Ed,

>In normal circumstances, the USB 'port' isn't addressible - the USB port could refer to any of ~127 devices! In general, there's a DOS port name mapped to the USB device; you have to use that name or the UNC of the USB device as a target.

I didn't mean to imply that you talk directly to the USB port. The SET PRINTER TO should hook VFP to the right physical device on the USB network. My notbook doesn't list the USB port as a selectable one in the printer setup, I'm assuming that it's because I've not ever installed a USB printer which should put the right driver in place to work over USB.