SubResolver.cs

using System;
using System.Collections.Generic;
using System.Linq;

using Castle.MicroKernel.Registration;
using Castle.MicroKernel.Resolvers.SpecializedResolvers;
using Castle.Windsor;

namespace castlefacttest
{
    public interface IPerson
    {
        string Name { get; }
    }

    public class Jack : IPerson
    {
        public string Name { get { return "Jack"; } }
    }

    public class Bob : IPerson
    {
        public string Name { get { return "Bob"; } }
    }

    public class Test
    {
        public Test(IEnumerable<IPerson> people)
        {
            Console.WriteLine("Test {0}", string.Join(", ", people.Select(x => x.Name)));
        }
    }

    public class Program
    {
        public static void Main(string[] args)
        {
            var ct = new WindsorContainer();
            ct.Kernel.Resolver.AddSubResolver(new CollectionResolver(ct.Kernel));
            ct.Register(AllTypes.FromThisAssembly().BasedOn<IPerson>().WithService.FirstInterface().Configure(x => x.Named(x.Implementation.Name)));
            ct.Register(Component.For<Test>());

            ct.Resolve<Test>(); // Outputs: Test Jack, Bob
            ct.Resolve<IEnumerable<IPerson>>(); // ComponentNotFoundException: No component for supporting the service castlefacttest.IPerson[] was found

            Console.ReadKey();
        }
    }
}