I assume that the correct settings would be used automatically at installation time if you put the monitors INF, ICM and CAT files into the OEMPnPDriversPath. The monitor needs to support PnP for this to work. To update the driver after installation you can use devcon.exe as mentioned by Tyke. If you need to detect the device automatically you could also delete the device and have Windows detect it. This may also be done with devcon. You need to put the driver files in OEMPnPDriversPath first. I didn't try this with monitors yet but it works with other devices. So why not with monitors?