/// <summary>
        /// When a new message is received, the participant is added to the list of Participants.
        /// </summary>
        private async void MessageToConnectReceivedFromParticipantAsync(
            StreamSocketListener sender,
            StreamSocketListenerConnectionReceivedEventArgs args)
        {
            var participant = new DnssdParticipantInformation {
                Host = args.Socket.Information.RemoteAddress
            };

            // Read the subscriber's message.
            using (var reader = new StreamReader(args.Socket.InputStream.AsStreamForRead()))
            {
                string message = await reader.ReadLineAsync();

                if (message != TEST_MESSAGE)
                {
                    // Add the participant.
                    base.AddParticipant(participant, message);
                }
            }
        }
        /// <summary>
        /// When a new message is received, the participant is added to the list of Participants.
        /// </summary>
        private async void MessageToConnectReceivedFromParticipantAsync(
            StreamSocketListener sender, 
            StreamSocketListenerConnectionReceivedEventArgs args)
        {
            var participant = new DnssdParticipantInformation { Host = args.Socket.Information.RemoteAddress };

            // Read the subscriber's message.
            using (var reader = new StreamReader(args.Socket.InputStream.AsStreamForRead()))
            {
                string message = await reader.ReadLineAsync();

                if (message != TEST_MESSAGE)
                {
                    // Add the participant.
                    base.AddParticipant(participant, message);
                }
            }
        }