PluginBase.cs

public abstract class PluginBase<T> : CrmPluginBase<T> where T : Entity
{
    private IWindsorContainer ioc;

    protected PluginBase()
       : this(null, null)
    {
    }

    protected PluginBase(string unsecure, string secure)
       : base(unsecure, secure)
    {
    }

    protected TService GetService<TService>()
    {
        ioc = LazyInitializer.EnsureInitialized(ref ioc, BootstrapIoC);

        return ioc.Resolve<TService>();
    }

    private IWindsorContainer BootstrapIoC()
    {
        return new WindsorContainer().RegisterFromInterface<IService>(SystemOrgService);
    }
}

SearchService.cs

public class SearchService : ISearch
{
    public SearchService(IOrganizationService systemService)
    {
        SystemService = systemService;
    }

    private IOrganizationService SystemService { get; set; }

    public IOrganizationService UserService { get; set; }

    public void Search()
    {
        UserService.Create(new ral_search { ral_name = "test" });
    }
}

WindsorExtensions.cs

public static class WindsorExtensions
{
    public static IWindsorContainer RegisterFromInterface<T>(this IWindsorContainer container, IOrganizationService systemService)
    {
        container.Register(Classes.FromAssemblyContaining<T>()
                 .BasedOn<T>()
                 .WithService
                 .FromInterface()
                 .LifestyleTransient()
                 .Configure(
                    c =>
                        c.DependsOn(Dependency.OnValue<IOrganizationService>(systemService))));

        return container;
    }
}