try
      {
        Proxy.BeginMethod1(..., OnEndMethod1, Proxy);
      }
      catch (FaultException ex)
      {
        MessageBox.Show(ex.Message);
      }
      catch (CommunicationException cex)
      {
        MessageBox.Show(cex.InnerException.Message);
        Abort();
        ReCreateProxy();
      }
      catch (Exception ex)
      {
        Proxy.Close();
        MessageBox.Show(ex.Message);
        ReCreateProxy();
      }

   private void OnEndMethod1(IAsyncResult ar)
    {
      SendOrPostCallback cb =
        delegate
        {
          if (((ServiceClient)ar.AsyncState).State == CommunicationState.Opened)
          {
            try
            {
              ... = Proxy.EndMethod1(ar);
            }
            catch (FaultException ex)
            {
              MessageBox.Show(ex.Reason.ToString());
            }
            catch (CommunicationException cex)
            {
              MessageBox.Show(cex.InnerException.Message);
              Proxy.Abort();
              ReCreateProxy();
            }
            catch (Exception ex)
            {
              Proxy.Close();
              MessageBox.Show(ex.Message);
              ReCreateProxy();
            }
          }
          ar.AsyncWaitHandle.Close();
        };
      var Sc = SynchronizationContext.Current;
      Sc.Send(cb, null);
    }