Actually i am trying to use crating overview map in AGX. I have seen WpfOverview map sample. But when i run that application i got so many errors. So i decided to create overview map using Mapwindow Activex control. So itried to creat one dockwindow control in AGX and i added that Mapwindow activex control to dockwindow, But it is throwing an exception,"Unknown error,,,,,,,,,,,". Anybody help me............