The Sigmatel AC97 audio driver is for Windows Vista, Windows XP or Windows 2000. Technically, it is the rather long winded: Sigmatel C-Major STAC 9750 AC97 WDM Audio Driver. Whatever way you want to label it, the driver package installs version 5.1 of the driver onto your system and can be used as an update to an earlier driver or as part of a new installation.
