Thanks to MR Tech for the Info:

This update fixes a problem on your Windows 2000-based computer. When you try to play music, the computer stops responding and you receive the following error on a blue screen: Stop: 0x0000001E (0xC0000090 0xB73B4CF3 0x00000000 0xED27F6F4) Kmode_Exception_Not_Handled Address B73B4CF3 base at B7397000 Datestamp 3829162e - Kmixer.sys