The DRC developed driver for the C-media CMI 9880 sound card.
This driver can be used on both Windows Vista (32 and 64 bit versions) and XP.

Installation steps for Windows Vista:

1)  Unzip file on hard drive for safe keeping.
2)  Right click setup.exe and click Properties.
3)  Go to Compatibility tab and check "Run this program in compatibility mode for:" and select "Windows XP (Service Pack 2)"
4)  Click OK and run setup.exe
5)  Restart Computer and plug in the jacks for your audio system, earphones, microphone, etc.