For the Compaq Presario 1270 Audio Device under W98 SE.
Unzip this File to your hard drive in a named directory, go to the Control Panel, System, Devices, and refresh to detect your PCI Multimedia device. Point the installer to your directory with the Zipped up file and follow the install instructions. It worked for me and it took me all day to find it.
Hope it helps someone. It did me!