[SecurityPermission(SecurityAction.Demand, Flags = SecurityPermissionFlag.UnmanagedCode), SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public static void Restart()
{
    if (Assembly.GetEntryAssembly() == null)
    {
        throw new NotSupportedException(SR.GetString("RestartNotSupported"));
    }
    bool flag = false;
    Process currentProcess = Process.GetCurrentProcess();
    if (string.Equals(currentProcess.MainModule.ModuleName, "ieexec.exe", StringComparison.OrdinalIgnoreCase))
    {
        string str = string.Empty;
        new FileIOPermission(PermissionState.Unrestricted).Assert();
        try
        {
            str = Path.GetDirectoryName(typeof(object).Module.FullyQualifiedName);
        }
        finally
        {
            CodeAccessPermission.RevertAssert();
        }
        if (string.Equals(str + "\\ieexec.exe", currentProcess.MainModule.FileName, StringComparison.OrdinalIgnoreCase))
        {
            flag = true;
            Application.ExitInternal();
            string text = AppDomain.CurrentDomain.GetData("APP_LAUNCH_URL") as string;
            if (text != null)
            {
                Process.Start(currentProcess.MainModule.FileName, text);
            }
        }
    }
    if (!flag)
    {
        if (ApplicationDeployment.IsNetworkDeployed)
        {
            string updatedApplicationFullName = ApplicationDeployment.CurrentDeployment.UpdatedApplicationFullName;
            uint hostTypeFromMetaData = (uint)Application.ClickOnceUtility.GetHostTypeFromMetaData(updatedApplicationFullName);
            Application.ExitInternal();
            UnsafeNativeMethods.CorLaunchApplication(hostTypeFromMetaData, updatedApplicationFullName, 0, null, 0, null, new UnsafeNativeMethods.PROCESS_INFORMATION());
            return;
        }
        string[] commandLineArgs = Environment.GetCommandLineArgs();
        StringBuilder stringBuilder = new StringBuilder((commandLineArgs.Length - 1) * 16);
        for (int i = 1; i < commandLineArgs.Length - 1; i++)
        {
            stringBuilder.Append('"');
            stringBuilder.Append(commandLineArgs[i]);
            stringBuilder.Append("\" ");
        }
        if (commandLineArgs.Length > 1)
        {
            stringBuilder.Append('"');
            stringBuilder.Append(commandLineArgs[commandLineArgs.Length - 1]);
            stringBuilder.Append('"');
        }
        ProcessStartInfo startInfo = Process.GetCurrentProcess().StartInfo;
        startInfo.FileName = Application.ExecutablePath;
        if (stringBuilder.Length > 0)
        {
            startInfo.Arguments = stringBuilder.ToString();
        }
        Application.ExitInternal();
        Process.Start(startInfo);
    }
}