Well...the association is connected to the icon. Whatever program is recognized by Windows as the program that opens a specific file has its icon as the icon for that file. All my .pz3's had that generic Windows "non-icon". When I clicked on the icon, nothing happened. (Well, nothing happened at first -- now, unfortunately Windows has chosen to associate my .pz3 files with Adobe Acrobat for some reason and I can't get it to unchose it and get back to the generic Windows "non-icon.") :o