I have downloaded the most recent Client and attempted to install (using admin) on two different computers. One a 32 bit laptop and one a 64 bit tower. In both cases the two hubs show up in the Programs and Features listing. Opening the Client, the server side shows up as well as the device itself. Right clicking, selecting Use and then looking in the Windows Device manager to identify the port to use. I notice the the Port is identified but the driver itself is not installed as shown in the Port/Properties dialog box. The 64 bit tower goes to BOD and reboots at this point. I attempted to the -d argument on both computers and both installs ended with a Success notation but still the Device Manager indicates no drivers were installed.
The hub drivers and .exe file were removed from the tower to prevent ongoing BODs.