VERY hard-to-find driver...no source at AZTECH. WinNT4.0 PNP auto-detect sequence finds the card, then requests insertion of disc/location of driver...choose BROWSE and simply direct WinNT to the folders which were unzipped. Folders DISC 1 and DISC 2 both have data useful to NT's routine. Should the unzipped Install utilities be necessary, all related (sound, joystick, Winmodem, ETC.) drivers MUST be uninstalled using NT's 'Multimedia' applet in 'Control Panel' prior to successful completion of Install routine.