release notes:

Date: 2002/24/01

Version: 4.10.00.0004  

Driver description:
  The C-Media cm9738 driver is working on the NT4.0 with Intel Ich2, 
  Sis7012, and Via8233 chipsets. It consists three files:
  IAC97U4.DLL	// ac97 user mode driver 
  IAC97K4.SYS	// ac97 kernel mode driver
  OEMSETUP.INF	// installation inforamtion