I recently did (was forced into) another FSX clean install, but this time I did something different. I saved my FSX.CFG before uninstalling Acelleration and FSX, simply because I didn't want to re-tweek it after the new install. Anyway, before reinstalling FSX, I put the .CFG back where it belonged before putting the disks in. When the first disk spooled up, I got the "repair" prompt, so I clicked on it. I was able to do a clean install of FSX and Acceleration without having to activate it with the product code...and it's working like a charm.
Hopefully, this method is not just a lucky fluke, and Product Activation Codes will now be a thing of the past for follow-on clean installs.
Hopefully, this method is not just a lucky fluke, and Product Activation Codes will now be a thing of the past for follow-on clean installs.