private async void Current_ContractActivated(object sender, IActivatedEventArgs e) { if (e is IWebAuthenticationBrokerContinuationEventArgs) { AuthenticationWindows authenticationForWindows = AuthenticationWindows.Current as AuthenticationWindows; if (authenticationForWindows != null) { await authenticationForWindows.ContinueAcquireToken(e as IWebAuthenticationBrokerContinuationEventArgs); } } }