WSE 3 Deployment: MSI and ClickOnce

using System;
using System.Collections.Generic;
using System.Text;
using System.Deployment.Application;
using WSEDeployment.Properties;
using System.ComponentModel;
using System.Security.Cryptography.X509Certificates;
using System.Windows.Forms;
using Util;

namespace WSEDeployment
{
class ClickOnceFunctions
{
    public static void CheckForCertificate()
    {
        if (ApplicationDeployment.IsNetworkDeployed)
        {
            if (ApplicationDeployment.CurrentDeployment.IsFirstRun)
            {
                X509Certificate2 cert = new X509Certificate2(Resources.TestCertificateClient);

                CertificateInstall.PlaceInStore(
                    cert, StoreName.AddressBook, StoreLocation.CurrentUser, null);
            }
        }
    }

    private static System.Timers.Timer _updateTimer = null;
    public static void StartListeningForUpdates()
    {
        if (ApplicationDeployment.IsNetworkDeployed)
        {
            _updateTimer = new System.Timers.Timer();
            _updateTimer.Interval = 10000;
            _updateTimer.Elapsed += new System.Timers.ElapsedEventHandler(_updateTimer_Elapsed);
            _updateTimer.Start();
        }
    }

    public static void StopListeningForUpdates()
    {
        if (ApplicationDeployment.IsNetworkDeployed)
        {
            _updateTimer.Stop();
            _updateTimer.Dispose();
        }
    }

    private static bool _updating;
    static void _updateTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
    {
        if (ApplicationDeployment.IsNetworkDeployed)
        {
            ApplicationDeployment current = ApplicationDeployment.CurrentDeployment;

            if (!_updating)
            {
                try
                {
                    if (current.CheckForUpdate())
                    {
                        //MessageBox.Show("Test");
                        _updating = true;
                        current.Update();

                        DialogResult dr = MessageBox.Show(
                        "Update downloaded, restart application?",
                        "Application Update", MessageBoxButtons.YesNo);

                        if (dr == DialogResult.Yes)
                            Application.Restart();
                    }
                }
                catch (Exception ex)
                {
                    _updating = false;
                    Console.WriteLine("Clickonce connection failed: " + ex.ToString());
                }
            }
        }
    }
}
}