private static void configStep_addShortcutToStartupGroup()
{
using (ShellLink shortcut = new ShellLink())
{
    shortcut.Target = Application.ExecutablePath;
    shortcut.WorkingDirectory = Path.GetDirectoryName(Application.ExecutablePath);
    shortcut.Description = "My Shorcut Name Here";
    shortcut.DisplayMode = ShellLink.LinkDisplayMode.edmNormal;
    shortcut.Save(STARTUP_SHORTCUT_FILEPATH);
}
}