thanks for the reply
i am a bit confiused, i thought inf files are just used when you install a drive, it provides instructions to the OS for installation of the driver. once that is done, there is no need for the inf file. so if you are startig up your OS the inf file is not used at all.
the settings for the prgrams and the drivers are in the registry. so my understanding is that the registry just acts as a respository of the settings, whereas the inf file provides instructions for the installation of the drivers, is my understanding correct?