The "AILSETSTREAMVOLUME8" cheat code sets the stream volume to 8, which affects the music and radio stations in the game.
The "stream volume" refers to the game's ability to "stream" large audio files like radio stations and cutscene dialogue from the disk. Since modern hardware handles audio differently than 2002-era hardware, these specific function calls (AIL) often require these "compatibility" tweaks to function. DEV Community fixing this error
The error message "The procedure entry point _Ail_set_stream_volume@8 could not be located in the dynamic link library mss32.dll"