C# program causes bluescreen?

This is only the important stuff that the bluescreen shows. I'm on Windows 7 x64.

"A problem has been detected and Windows has been shut down to prevent damage to your computer.

PROCESS_HAS_LOCKED_PAGES

* STOP: 0x00000076 (0x0000000000000000, 0xfffffa8009dcd060, 0x0000000000000011, 0x0000000000000000)"

I can't work on it now because every time I close it I get a bluescreen! The program doesn't do anything yet except run the background worker below. It pings all addresses that could be part of the user's home network and attempts to connect to a certain port that another program will be listening on.

private void NetworkScanner_DoWork(object sender, DoWorkEventArgs e)
    {
        bool ExceptionEncountered = false;
        int IPsProcessed = 0;

        NetworkSearcherOutput = "Starting network scanner...";
        NetworkSearcher.ReportProgress(0);
        Thread.Sleep(1000);

        foreach (IPAddress IP in Dns.GetHostAddresses(Dns.GetHostName()))
        {
            if (IP.AddressFamily == AddressFamily.InterNetwork)
            {
                string[] Octets = IP.ToString().Split('.');
                Octets[3] = "0";

                IPAddress CurrentAddressIteration = StringArrayToIP(Octets);
                while (GetLastOctet(CurrentAddressIteration) != 255)
                {
                    PingReply Reply = new Ping().Send(CurrentAddressIteration, 5);

                    if (Reply.Status == IPStatus.Success)
                    {
                        NetworkSearcherOutput = CurrentAddressIteration.ToString() + " sent response.";
                        NetworkSearcher.ReportProgress(0);
                        Thread.Sleep(500);

                        InClient Client = new InClient(CurrentAddressIteration);

                        try
                        {
                            Client.Connect();

                            SnapshotBox.Image = Client.Receive(typeof(Image));

                            NetworkSearcherOutput = CurrentAddressIteration.ToString() + " is running program.";
                            NetworkSearcher.ReportProgress(0);
                            Thread.Sleep(1000);
                        }

                        catch (Exception E)
                        {
                            // A socket exception is expected when the client is not running the program.
                            if (E is SocketException)
                            {
                                Client.Close();

                                NetworkSearcherOutput = CurrentAddressIteration.ToString() + " is not running program.";
                                NetworkSearcher.ReportProgress(0);
                                Thread.Sleep(1000);
                            }

                            //Unhandled exception. Show messagebox and close.
                            else
                            {
                                MessageBox.Show("Network scanner encountered an unhandled exception.\n\n" + E.GetType().ToString() + ": " + E.Message, "Unhandled Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
                                ExceptionEncountered = true;
                                break;
                            }
                        }
                    }

                    else
                    {
                        NetworkSearcherOutput = CurrentAddressIteration.ToString() + " did not respond.";
                        NetworkSearcher.ReportProgress(0);
                    }

                    IPsProcessed++;

                    if (IPsProcessed == 5)
                    {
                        NetworkSearcher.ReportProgress(2);
                        IPsProcessed = 0;
                    }

                    Octets = CurrentAddressIteration.ToString().Split('.');
                    Octets[3] = (Int32.Parse(Octets[3]) + 1).ToString();
                    CurrentAddressIteration = StringArrayToIP(Octets);
                }
            }
        }

        if (!ExceptionEncountered)
        {
            NetworkSearcherOutput = "Network scanning complete.";
            NetworkSearcher.ReportProgress(0);
            NetworkSearcher.ReportProgress(100);
        }

        else
        {
            NetworkSearcherOutput = "Network scanning encountered an error.";
            NetworkSearcher.ReportProgress(-1);
        }

I thought C# programs were supposed to never cause bluescreens?

I discovered this issue a few weeks back. It only happens when using .NET 4.

Reported at MS Connect.

Edit:

(Will*) Add this link to MS Connect bug report.

*login.live.com is going into an infinite loop again...