ADLINK cPCI-3970 Series - Manual (Page 101)

Driver Installation 87
cPCI-3970
4. Select "Install from a list or specific location (Advanced)" and
click Next.
5. Extract the contents of …\cPCI-3970\COM\USB_Serial
_Port_WINXP_32_WIN7_64_FTDI 2.8.8.0. Select "Search for
the best driver in these locations" and "Include this location in
the search". Click Browse and navigate to the folder where you
extracted the contents of the zip file, and then click OK. Click
Next to continue.