Colonization (DOS version) stalls for a very long time
(I aborted it after 10 minutes or so) after playing the
opening on the "Loading game..." message. This is when
starting the game using the included COL.BAT. Starting
VICEROY.EXE (which is probably what the game is doing
internally) directly works and takes you to the main
menu. From there on the game appears to work correctly.