public void Test_StopAdvise_Before_StartAdvise() { using (TestServer server = new TestServer(ServiceName)) { server.Register(); server.SetData(TopicName, ItemName, 1, Encoding.ASCII.GetBytes(TestData)); using (DdeClient client = new DdeClient(ServiceName, TopicName)) { client.Connect(); client.StopAdvise(ItemName, Timeout); } } }