I couldn't get INPA to work either. The fix for your error can be found by editing some values in the registry editor (i.e. Regedit). You will need to
for it, you should find your solution because it's a common error. Other than that I just skipped using INPA and only use the program to make sure my computer is communicating with my car. After I have both dot's black, I proceed to open NCSEXPERT and code the car.