Thanks so much for your help Hans. I’m sorry for the confusion regarding Addon Manager. It is actually something specific to this particular developer. Fsdreamteam requires it for their sceneries. Unfortunately, the scenery is tethered to Addon Manager and cannot be installed outside of it as far as I know. The problem is, although the scenery was created in 2011, the Addon Manager has been updated so it no longer functions properly with windows 7. Hence, the scenery no longer functions properly in windows 7. Hope that makes sense. Unfortunately, the standard installation procedure doesn’t work with them. But I do really appreciate your help.