GTA vice city--mss32.dll error..?

:confused: I have just aquired in 2 part .iso image… I have installed disk 1 o.k but when i try to run disk 2(the play disk) i get an error message (missing mss32.dll…error) somebody on another forum said to down load miles sound studio but i dont know what to do…???.. please HELP!!:sad:

Buy the game?