Bootstrapper Class for Caliburn.Micro with SimpleContainer as IoC Container

SCBootstrapper.cs

    public class SCBootstrapper:BootstrapperBase
    {
        private readonly SimpleContainer _Container = new SimpleContainer();
        public SCBootstrapper()
        {
            Initialize();
        }

        protected override void Configure()
        {
            _Container.Singleton<IWindowManager, WindowManager>();
            _Container.Singleton<IEventAggregator, EventAggregator>();
            _Container.PerRequest<IShell, ShellViewModel>();
        }
        protected override object GetInstance(Type service, string key)
        {
            var instance = _Container.GetInstance(service, key);
            if (instance != null)
                return instance;
            throw new InvalidOperationException("Could not locate any instances.");
        }

        protected override IEnumerable<object> GetAllInstances(Type service)
        {
            return _Container.GetAllInstances(service);
        }

        protected override void BuildUp(object instance)
        {
            _Container.BuildUp(instance);
        }
        protected override void OnStartup(object sender, StartupEventArgs e)
        {
            DisplayRootViewFor<IShell>();
        }
    }