I have both the 785d and the 996xt scanners.I have been able to get the 996 running somewhat thru the usb cable connection to the scanner front in free scan. The 785d I have not. Sometime ago I purchased the usb to serial cable and disc thru radio shack #20-047 but was unable to get it running at the time. I am now trying again,and at the time,I installed the software that came with the cable. I also left a shortcut to this software on my desktop. When trying again to get the 785 to communicate with the pc it asks for the disc which I cannot locate. I tried to unzip this file but it doesn't seem to work. Any help?