This might be a strange - and unique - issue. Don't think it's actually a game "defect" ...
Nonetheless ...
Running Vista with UAC turned OFF. Vista allows the use of "gadgets" or "widgets" in its Sidebar. I've been using one that I downloaded for some time now that allows shortcut icons to be displayed in a small, compacted area of the sidebar, rather than all over the desktop screen. It works perfectly with all icons I have placed there, including Ageod games [AACW, BOA, WIA, and NCP], but NOT with WW1. Strange. It didn't work with the initial download, nor after updating to 1.04b.
When I click on the WW1 icon in the gadget, I get this error message: Serial Key Check Failure - Your Serial Key is Invalid! You are not allowed to play WW1!
I can start the game normally using Start Menu or a usual desktop icon.
My question really is, what is different in the WW1 .exe from other Ageod games that prevents it from starting up using this gadget in the Vista sidebar?