Adding automatic updates to your program - Part 1

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
using System.Windows.Forms;
using System.Threading;

using DDay.Update.Utilities;
using DDay.Update.Configuration;

[[AssemblyAttributes]]

namespace DDay.Update.Bootstrap
{
    class Program
    {
        static private ILog log = new Log4NetLogger();

        static void Main(string[] args)
        {
            AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
            Application.ThreadException += new ThreadExceptionEventHandler(Application_ThreadException);

            // Get the DDay.Update configuration section
            DDayUpdateConfigurationSection cfg = ConfigurationManager.GetSection("DDay.Update")
                as DDayUpdateConfigurationSection;

            // Set the command line parameters to the application
            UpdateManager.SetCommandLineParameters(args);

            try
            {
                // Determine if an update is available
                if (UpdateManager.IsUpdateAvailable(cfg.Uri))
                {
                    UpdateManager.UpdateCompleted += new EventHandler(UpdateManager_UpdateCompleted);
                    UpdateManager.UpdateCancelled += new EventHandler(UpdateManager_UpdateCompleted);
                    UpdateManager.UpdateError += new EventHandler<ExceptionEventArgs>(UpdateManager_UpdateError);
                    log.Debug("Update is available, beginning update process...");

                    // Perform the update, which performs the following steps:
                    // 1. Updates to a new version of the application
                    // 2. Saves new deployment and application manifests locally                    

                    if (UpdateManager.Update())
                        Application.Run();
                    else
                    {
                        // User declined to update the application,
                        // or the update is otherwise not going
                        // to happen.
                        UpdateManager.StartApplication();
                    }
                }
                else
                {
                    log.Debug("Application is up-to-date.");
                    UpdateManager.StartApplication();
                }
            }
            catch
            {
                // Start the application
                UpdateManager.StartApplication();
            }
        }

        static void Application_ThreadException(object sender, ThreadExceptionEventArgs e)
        {
            RunApplication();
        }

        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            RunApplication();
        }

        static void UpdateManager_UpdateError(object sender, ExceptionEventArgs e)
        {
            RunApplication();
        }

        static void UpdateManager_UpdateCompleted(object sender, EventArgs e)
        {
            RunApplication();
        }

        static void RunApplication()
        {
            // Start the application
            UpdateManager.StartApplication();
                        
            log.Debug("Exiting bootstrap application...");
            Application.Exit();
        }
    }
}