Infrared communications between computer devices normally use the IRDA protocol. IrPass, a Pocket PC and a serial synchronization cable makes your Pocket PC operate like a smart infrared dongle. There's no special software to load onto your desktop PC. Just point your infrared software to the COM port that's connected to your Pocket PC, launch IrPass on your Pocket PC and communicate with other infrared devices. Www download irpass 10 tool.