This is for the Creative Labs PC-DVD Dxr2 card. Unzip the files into a folder. Then, from within device manager, select the unrecognized dvd decoder (I don't remember exactly what windows calls it, PCI multimedia video device or something like that), click properties, the "driver" tab, and then the button labeled "Update Driver." Then point windows to the folder the files were unzipped to.
The following files are found inside the driver download file.
|Downloads/CT7160_Win9x/DISK.ID||45 bytes||24 Sep 1998|
|Downloads/CT7160_Win9x/INSTALL.EXE||164.3 KB||5 Sep 1997|
|Downloads/CT7160_Win9x/README.TXT||1.8 KB||4 Aug 1997|
|Downloads/CT7160_Win9x/SBIDE.SYS||29.7 KB||4 Dec 1997|
|Downloads/CT7160_Win9x/README.COM||2.0 KB||8 Oct 1992|
|Downloads/CT7160_Win9x/LUXDVD.VXD||7.9 KB||25 Aug 1998|
|Downloads/CT7160_Win9x/INSTALL.PVL||48.7 KB||22 Jan 1998|
|Downloads/CT7160_Win9x/CTDVDVIP.INF||998 bytes||6 Mar 1998|
|Downloads/CT7160_Win9x/DXR2UDF.VXD||42.8 KB||4 Feb 1998|