Working in windows 10 with dgVoodoo2. I have version 2.79.1. There is a newer one at the dgVoodoo2 Github.
Link.
I just extracted the whole contents of the dgVoodoo2 zip file directly onto the Journey to the Moon main folder, opened the dgVoodoo2Cpl.exe, made no changes, closed dgVoodoo2Cpl.exe, then started game with Game.exe. Seems to work. Looks pretty decent, too.
Not guaranteed. Be careful downloading unknown software. But it works for me.
Edit. More testing shows sometimes game start with Game.exe, sometimes not. Retry 'til works I guess.
More Edit. Tried to start game about 30 times. Seems to work about 20% of the time. Is that worth it? Don't know. Better than nothing, but maybe someone else with more knowledge and patience will come along later and discover better results.