After overriding the DLLs with the ones from the DirectX 9.0c runtime download I'm getting the following error while the game is initializing:
C:zMusic_DM.cpp(zCMusicSys_DirectMusic::Init()
) Failed to initialize synth!
Obviously this is a DX9 error relating to the music but I'm at a loss as to how to fix this. I'm running the Gold edition from GOG.com.