Realtek’s AC97 audio chipsets were found on a large number of motherboards with integrated audio. The company’s AC97 WDM A4.06 driver supports the Windows 98/ME/2000/XP/2003 (32bit and 64bit versions of XP/2003 as well). You can download the driver here.
Read more Realtek AC’97 Audio Windows 98/ME/2000/XP/2003 Driver Version A4.06
