Notes on USB interface
Since Windows 8, it has been difficult to install unsigned drivers like the
Thermitrack USB-RS422 driver.
The original reason that the USB-RS422 driver uses its own driver, and not the default FTDI driver was so it could set up the interface parameters to optimise transfers, however the signing enforcement has made this more of a problem than a benefit.
For New USB-RS422 interfaces
New USB-RS422 drivers will now ship with the FTDI default VID/PID, so the standard FTDI drivers in Windows should work, and if not, the "search for device driver" options should work.
To optimise performance, after the device driver has installed, open Device Manager, Click on "Ports (COM & LPT)", and double-click on "USB Serial port (COMx).
Select Port Settings -> Advanced.
Set the "Latency Timer" setting to 2 and click OK
At the same time you might want to reassign the COM port number if it has been assigned an inconvenient high number
For existing users
To use existing USB-RS422 interfaces under Windows 8 and later, it is recommended that you reprogram the interface's USB VID/PID.
This can be done using FTDI's FT_PROG utility http://www.ftdichip.com/Support/Utilities.htm#FT_PROG
Use this template file to reprogram the interface : ttrack_new.xml
After reprogramming, unplug/replug and check teh status in device manager - you may need to do "reinstall driver" if it doesn't appear in the list of COM ports
The original Thermitrack USB drivers, for use only with Windows 7 and below are here : thermitrack_usb_drivers.zip