Support Information:
Device Type: Sound Card
Manufacturer: Intel
Model: AC 97 Audio Controller
Interface: Other
Operating System: Windows XP Professional
Age of Device: Not specified
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=496&qa5=19&qa7=1500&dp=3&qm0=AC+97+Audio+Controller&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Intel+Sound+Card++AC+97+Audio+Controller+Windows +XP+Professional+) | Research manufacturer Intel (http://members.driverguide.com/index.php?action=getinfo&companyid=496)

The AC-97 Audio is a chipset used on many motherboards. As each board requires their own drivers we need to know:

Who made your motherboard?
What is the model number?

You already provided the OS