We want to attach it to a unit running Win 7, so assume it's just a Win 7 USB Driver for the Foison that we need. The cutter was attached to a PC running XP. Foison C24 driver issue - help please? is no longer in the trade and swapped his Foison C24 cutter for a can get a copy of the foison driver.Thanks for the reply but we aren't using a converter just a direct USB link from the laptop to the cutter.