drivers are drivers and applications are applications... their installation requirements are different. in the INF, under source disk files, it should tell you the required files to get the hardware working. sometimes it's just inf and cats, other times it may be more, depending on the hardware. I honestly would put the required files in the same directory as the inf, unless the sourcediskfiles showed a subdirectory in the path to the files. As far as mixer and playcenter, those are apps, so those would have to be installed separately, and a silent install setup for those. hope that helps