C-Media’s audio chips are included in a wide variety of add-on sound cards, and integrated into a wide variety of computers. The company provides Windows Vista, and XP 32bit and 64bit driver versions for their CMI8768+ chipset.

You can download the drivers below:

C-Media CMI8768+ Windows Vista 32bit and 64bit Audio Drivers Version 8.17.33
C-Media CMI8768+ Windows XP 32bit and 64bit Audio Drivers Version 8.17.33