Support Information:
Device Type: Sound Card
Manufacturer: Analog Devices
Model: ad1981b
Interface: Other
Operating System: Windows XP Professional
Age of Device: Not specified
FCCID: waqas

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=82&qa5=19&qa7=1500&dp=3&qm0=ad1981b&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Analog+Devices+Sound+Card++ad1981b+Windows+XP+Pr ofessional+waqas) | Research manufacturer Analog Devices (http://members.driverguide.com/index.php?action=getinfo&companyid=82)

used in or came installed in what? If integrated on motherboard, you gotta provide the following:

1: Retail or oem motherboard?
2: MB brand and model?
3: Pc brand and model?