You could use inside your register statement:
Component.For<Test>.OnlyNewServices()
or when registering multiple components at once:
Types.FromAssemblyContaining<Test>().InSameNamespaceAs<Test>().Configure(c => c.OnlyNewServices());
Or a variation that suits you. See this link for conditional registration: http://docs.castleproject.org/Windsor.Conditional-component-registration.ashx