AFAIK, the cd DOS version (which I also have) already contains the expansion.
You can find the settings in the dosbox.conf file (simply open it with the editor, but remember to save it as a .conf file).
The settings I've mentioned above are:
in the [render] section:
scaler=none
[cpu]
cycles=max
[mixer]
rate=11025 (the rate above was a typo; I leave it at 22050)
You have to mount a cd drive as well (just type in "intro cdrom" in your dosbox window for instructions). Once you know your parameters, you can write them in your .conf tile in the [autoexec] section.
I managed to make some special installation without the cd, though it crashes when I click the on line manual button (it's not installed).
Anyway I hope you'll get your copy soon
