I tried the new drivers, they did not work under Windows 7 Embedded Standard OS.
What I did do to get the drivers installed and working, was to copy the file usbser.sys from a Windows XP PRO 32-bit machine over to the folder containing the .inf and .Cat driver files. Windows 7 complained about not being safe, but it did install the driver software, and now my application program is working. I can turn each relay on and off.