I have finally upgraded to Windows7 (64) and CLOD now works. Long ago and faraway, it worked at first release on XP, but upgrades in the program appear to have killed XP functionality.

So now with an operational install:

1) Where can I find the great Heinkill missions I had previously gathered? Excellent work

2) What are also major third party upgrades that have been made and where can they be located?

I am sorry for the global open questions, but I am finally able to reassemble the program.

Do you have the Team Fusion mod? http://theairtacticalassaultgroup.com/forum/

You find Heinkill missions/campaigns - and from others - there:

http://airwarfare.com/sow/index.php/downloads/viewcategory/4-offline-campaigns

Sokol1

Try this too. http://bobgamehub.blogspot.com/p/cliffs-of-dover-missions.html

I installed Heinkill's RAF Redux campaign last night. This campaign + the TF Mod makes Clod one amazing sim!

I wish to thank everyone who has contributed to the reinstallation of my COD program. It finally works. Once it did work in XP, but with the upgrade I have faithfully returned and will enjoy the game more with the links provided.