Intel I263 and I420 audio & video codecs. Following the instructions contained inside got me hearing audio from files that the GSpot utility told me required the "Intel Music Coder".
The following files are found inside the driver download file.
|Readme.txt||677 bytes||16 Mar 2002|
|I263_32.DRV||391.7 KB||7 Apr 1997|
|VIDCI263.reg||336 bytes||22 Dec 1997|
|IMC32.ACM||98.3 KB||1 Apr 1997|