Solution for Windows 7 (32-bit, will try the same with 64-bit later)
Required (I found these on the manufacturers' CD):-
Driver Date: 15/05/2003
Driver Version: 1.63.515.2003 (or 1.63.0515.2003)
Driver details ... WS01UPH.BIN & ZD1201U.sys
Steps
a) do not install the driver via...