private void SafeInvoker(MethodInvoker invokeMe)
        {
            if (this.InvokeRequired)
            {
                try
                {
                    int counter = 0;
                    if (!this.IsDisposed)
                        while (!this.IsHandleCreated)
                        {
                            if (exiting) return;
                            Thread.Sleep(100);
                            if (++counter > 150)
                            {
                                log.Error("Service Form Handle was not created for 15 seconds");
                                return;
                            }
                        }

                    if (!this.IsDisposed && !exiting) this.Invoke(invokeMe);
                }
                catch (Exception e)
                {
                    log.ErrorFormat("SafeInvoker Exception:\r\nException Message: {0}\r\nStacktrace: {1}", e.Message, e.StackTrace);
                }
            }
            else
            {
                invokeMe();
            }
        }


//example usage

                SafeInvoker(delegate
                {
                    buttonIndicator.IsOn = myProfile.ButtonAlarm != null;
                    keyIndicator.IsOn = myProfile.KeyAlarm != null;
                    messengerIndicator.IsOn = myProfile.Messenger != null;
                });