The prolific PL2303 adapters(cheap on ebay) work well from my experience on Windows XP, with all D-Star data SC progs (have tried them all)
The only thing I find is that if you also do genuine opc-478uc cloning with the CS-D800 prog, you need to reinstall the Icom USB driver each time for that purpose, then back to the PL2303 driver, re-install (upgrade driver) for data. Pays to keep a copy of each driver on the laptop HD for that purpose. unless you use a opc-478uc equivalent cable from the guys in HK which also work on the pl2303 driver. vk4tux
