/// <summary>
        /// Main entry point
        /// </summary>
        /// <param name="args">command line args</param>
        public static void Main(string[] args)
        {
            ParameterHelper parameters = new ParameterHelper();
            Program         app        = new Program();

            string targetConsole = string.Empty;

            try
            {
                parameters.ParseCommandLine(args);

                OperationType operation = OperationType.None;

                if (parameters.HasParameter(ParameterHelper.Operation))
                {
                    operation = OperationStringToEnum(parameters.GetParameterValue("op"));
                }

                // Allow /ip: to still function, even though we've moved to /x: in the documentation.
                if (parameters.HasParameter(ParameterHelper.IpOrHostnameOld) && !parameters.HasParameter(ParameterHelper.IpOrHostname))
                {
                    targetConsole = parameters.GetParameterValue(ParameterHelper.IpOrHostnameOld);
                }
                else if (parameters.HasParameter(ParameterHelper.IpOrHostname))
                {
                    targetConsole = parameters.GetParameterValue(ParameterHelper.IpOrHostname);
                }

                if (string.IsNullOrEmpty(targetConsole))
                {
                    object regValue;
                    regValue = Microsoft.Win32.Registry.GetValue(DefaultConsoleRegkey, null, null);

                    if (regValue == null)
                    {
                        regValue = Microsoft.Win32.Registry.GetValue(DefaultXtfConsoleRegkey, null, null);
                    }

                    if (regValue is string)
                    {
                        targetConsole = regValue as string;
                    }
                    else
                    {
                        throw new Exception("No default console is currently set. Must provide an ip address or hostname to connect to: /x:<ip or hostname>.");
                    }
                }

                string finalConnectionAddress = string.Format("https://{0}:11443", targetConsole);
                string userName = parameters.GetParameterValue(ParameterHelper.WdpUser);
                string password = parameters.GetParameterValue(ParameterHelper.WdpPassword);

                if (string.IsNullOrEmpty(userName) || string.IsNullOrEmpty(password))
                {
                    try
                    {
                        // No creds were provided on the command line.
                        CredManager.RetrieveStoredCreds(targetConsole, ref userName, ref password);
                    }
                    catch (TypeLoadException)
                    {
                        // Windows 7 doesn't support credential storage so we'll get a TypeLoadException
                        throw new Exception("Credential storage is not supported on your PC. It requires Windows 8+ to run. Please provide the user and password parameters.");
                    }
                }
                else
                {
                    try
                    {
                        // Creds were provided on the command line.
                        CredManager.UpdateStoredCreds(targetConsole, userName, password);
                    }
                    catch (TypeLoadException)
                    {
                        // Do nothing. We can't store these on Win7
                    }
                }

                X509Certificate2 cert = null;

                IDevicePortalConnection connection = new DefaultDevicePortalConnection(finalConnectionAddress, userName, password);

                DevicePortal portal = new DevicePortal(connection);

                if (parameters.HasParameter(ParameterHelper.Cert))
                {
                    string certFile = parameters.GetParameterValue(ParameterHelper.Cert);

                    try
                    {
                        cert = new X509Certificate2(certFile);
                    }
                    catch (Exception e)
                    {
                        throw new Exception(string.Format("Failed to read manual cert file {0}, {1}", certFile, e.Message), e);
                    }
                }

                // Add additional handling for untrusted certs.
                portal.UnvalidatedCert += app.DoCertValidation;

                // If a thumbprint is provided, use it for this connection. Otherwise check the registry.
                if (parameters.HasParameter("thumbprint"))
                {
                    app.AcceptedThumbprint = parameters.GetParameterValue("thumbprint");
                }
                else
                {
                    object regValue;
                    regValue = Microsoft.Win32.Registry.GetValue(DefaultConsoleRegkey, targetConsole, null);

                    if (regValue is string)
                    {
                        app.AcceptedThumbprint = regValue as string;
                    }
                }

                Task connectTask = portal.Connect(updateConnection: false, manualCertificate: cert);
                connectTask.Wait();

                if (portal.ConnectionHttpStatusCode != HttpStatusCode.OK)
                {
                    if (portal.ConnectionHttpStatusCode == HttpStatusCode.Unauthorized)
                    {
                        if (connection.Credentials == null)
                        {
                            Console.WriteLine("The WDP connection was rejected due to missing credentials.\n\nPlease provide the /user:<username> and /pwd:<pwd> parameters on your first call to WDP.");
                        }
                        else
                        {
                            Console.WriteLine("The WDP connection was rejected due to bad credentials.\n\nPlease check the /user:<username> and /pwd:<pwd> parameters.");
                        }
                    }
                    else if (!string.IsNullOrEmpty(portal.ConnectionFailedDescription))
                    {
                        Console.WriteLine(string.Format("Failed to connect to WDP (HTTP {0}) : {1}", (int)portal.ConnectionHttpStatusCode, portal.ConnectionFailedDescription));
                    }
                    else
                    {
                        Console.WriteLine("Failed to connect to WDP for unknown reason.");
                    }
                }
                else
                {
                    // If the operation is more than a couple lines, it should
                    // live in its own file. These are arranged alphabetically
                    // for ease of use.
                    switch (operation)
                    {
                    case OperationType.AppOperation:
                        AppOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.ConfigOperation:
                        ConfigOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.ConnectOperation:
                        // User provided a new ip or hostname to set as the default.
                        if (parameters.HasParameter(ParameterHelper.IpOrHostname) || parameters.HasParameter(ParameterHelper.IpOrHostnameOld))
                        {
                            Microsoft.Win32.Registry.SetValue(DefaultConsoleRegkey, null, targetConsole);
                            Console.WriteLine("Default console set to {0}", targetConsole);
                        }
                        else
                        {
                            Console.WriteLine("Connected to Default console: {0}", targetConsole);
                        }

                        if (parameters.HasParameter("thumbprint"))
                        {
                            string thumbprint = parameters.GetParameterValue("thumbprint");
                            Microsoft.Win32.Registry.SetValue(DefaultConsoleRegkey, targetConsole, thumbprint);
                            Console.WriteLine("Thumbprint {0} saved for console with address {1}.", thumbprint, targetConsole);
                        }

                        break;

                    case OperationType.FiddlerOperation:
                        FiddlerOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.FileOperation:
                        FileOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.InfoOperation:
                        Console.WriteLine("OS version: " + portal.OperatingSystemVersion);
                        Console.WriteLine("Platform: " + portal.PlatformName + " (" + portal.Platform.ToString() + ")");

                        Task <string> getNameTask = portal.GetDeviceName();
                        getNameTask.Wait();
                        Console.WriteLine("Device name: " + getNameTask.Result);
                        break;

                    case OperationType.InstallOperation:
                        // Ensure we have an IP since SMB might need it for path generation.
                        parameters.AddParameter(ParameterHelper.IpOrHostname, targetConsole);

                        InstallOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.ListProcessesOperation:
                        ListProcessesOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.RebootOperation:
                        Task rebootTask = portal.Reboot();
                        rebootTask.Wait();
                        Console.WriteLine("Rebooting device.");
                        break;

                    case OperationType.SandboxOperation:
                        SandboxOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.ScreenshotOperation:
                        ScreenshotOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.SystemPerfOperation:
                        SystemPerfOperation.HandleOperation(portal, parameters);
                        break;

                    case OperationType.XblUserOperation:
                        UserOperation.HandleOperation(portal, parameters);
                        break;

                    default:
                        Console.WriteLine("Successfully connected to console but no operation was specified. \n" +
                                          "Use the '/op:<operation type>' parameter to run a specified operation.");
                        Console.WriteLine();
                        Console.WriteLine(AvailableOperationsText);
                        break;
                    }
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
                Console.WriteLine();
                Console.WriteLine(GeneralUsageMessage);
            }

            // If a debugger is attached, don't close but instead loop here until
            // closed.
            while (Debugger.IsAttached)
            {
                Thread.Sleep(0);
            }
        }