Any idea what "FT_GetComPortNumber(0000000000003D84FF0 (0), 120)" error message in bfgminer is telling me to do? I see the device in device manager (running windows 7x64 btw) on COM120. I get that message when i search for all or specifically probe COM120.
You need to use Zadig on BFx2 to get the WinUSB driver.