Pause->Enter, of course! I must admit I don't know anything about coding, not even batch files. But I seem to have a gift to get those who can fulfill my ideas...
I tried to make a simple batch to start AH only, but didn't succeed. Until then I was in the belief that batch commands worked similarly to "run" commands.
But wait! You've got me an idea! Tested and it works:
cd "C:\Hitech Creations\Aces High"
aceshigh.exe
pause (if you like to hit Enter, otherwise just the two lines above will do)