Address book - backing it up?

Usually plugins, including Address Book, save data in the .tlbplugin file in the toolbar folder. So you can backup entire toolbar folder and restore it after reinstalling. Of find the file with name like "Address Book.tlbplugin" and backup this file (name can be other if you've renamed it). Also you can drag the Address Book button from the toolbar to any folder (hold down CTRL key to make a copy). When you drop AB into any folder TLB create the .tlbplugin file. You can copy this file back on toolbar/menu to restore Address Book with all data.