OK, scratch the above, I am new here and not sure how to edit the initial post.
So recopied the files and can now access the mission launcher. I" run as administrator. It seems to load, but just takes me to the Dune 2000 menu, and not the actual mission I choose from the Mission launcher.
I can then play the standard houses, but it seems nothing from the Mission launcher, i.e. new missions are available.
For example run the Mission Launcher as admin, opens the console, select Rise of the mercenaries - select Mission one, then next thing it loads into the standard Dune 2000 menu, The only option I have from there is the standard menu options and to choose a house to play. I was expecting something else, though not sure what beyond being loaded straight into Mission 1 Rise of the Mercenaries .
Thoughts / help welcome.
Thanks