at System.Windows.Threading.Dispatcher.VerifyAccess()
   at System.Windows.Window.get_CriticalHandle()
   at System.Windows.Window.set_Owner(Window value)
   at Quicker.Domain.AppServer.<>c__DisplayClass44_0.<FeedbackAction>b__0()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()