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copied!<p>According to MSDN, <a href="http://msdn.microsoft.com/en-us/library/system.net.sockets.networkstream.read.aspx" rel="nofollow">Read</a> method of <a href="http://msdn.microsoft.com/en-us/library/system.net.sockets.networkstream.aspx" rel="nofollow">NetworkStream</a> class throws <em>IOException</em> when the underlying Socket is closed and <em>ObjectDisposedException</em> when the NetworkStream is closed or there is a failure reading from the network. The same exceptions are thrown by <em>Write</em> method.</p> <p>Therefore it shoud be enough to catch these 2 exception types and take appropriate action in exception handlers.</p> <pre><code> TcpClient tcpClient = (TcpClient)client; NetworkStream clientStream = tcpClient.GetStream(); byte[] rcvBuffer = new byte[BUFSIZE]; // Receive buffer int bytesRcvd; // Received byte count while (ServiceRunning) // Run forever, accepting and servicing connections { try { // Receive until client closes connection, indicated by 0 return value int totalBytesEchoed = 0; try { while (((bytesRcvd = clientStream.Read(rcvBuffer, 0, rcvBuffer.Length)) > 0) && (ServiceRunning)) { clientStream.Write(responseBytes, 0, responseBytes.Length); WriteEventToWindowsLog("GSSResponderService", "Received "+System.Text.Encoding.UTF8.GetString(rcvBuffer), System.Diagnostics.EventLogEntryType.Information); totalBytesEchoed += bytesRcvd; } } catch(IOException) { //HERE GOES CODE TO HANDLE CLIENT DISCONNECTION } catch(ObjectDisposedException) { //HERE GOES CODE TO HANDLE CLIENT DISCONNECTION } WriteEventToWindowsLog("GSSResponderService", "Responded to " + totalBytesEchoed.ToString() + " bytes.", System.Diagnostics.EventLogEntryType.Information); // Close the stream and socket. We are done with this client! clientStream.Close(); tcpClient.Close(); } catch (Exception e) { WriteEventToWindowsLog("GSSResponderService", "Error:" + e.Message, System.Diagnostics.EventLogEntryType.Error); clientStream.Close(); tcpClient.Close(); break; } } } </code></pre>

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