NSB Bootstraper example, with autofac scanning.

NSBBootstraperExample.cs

  public static void InitNsbHost()
        {
            string[] assemblyScanerPattern = new[] {@"your.namespace.*.dll"};

            // Make sure process paths are sane...
            Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);

            //  begin setup of autofac >>
            ContainerBuilder builder = new ContainerBuilder();

            // 1. Scan for assemblies containing autofac modules in the bin folder
            List<Assembly> assemblies = new List<Assembly>();
            assemblies.AddRange(
                Directory.EnumerateFiles(Directory.GetCurrentDirectory(), "*.dll", SearchOption.AllDirectories)
                         .Where(filename => assemblyScanerPattern.Any(pattern => Regex.IsMatch(filename, pattern)))
                         .Select(Assembly.LoadFrom)
                );

            // 2. Register AutoFac modules
            assemblies
                .SelectMany(assembly => assembly.GetTypes())
                .Where(type => typeof (Autofac.Module).IsAssignableFrom(type))
                .Where(type => type.GetConstructor(Type.EmptyTypes) != null)
                .Select(Activator.CreateInstance)
                .Cast<IModule>()
                .ToList()
                .ForEach(builder.RegisterModule);

            // 3. we have all our stuff in the builder now so lets build it
            Autofac.IContainer container = builder.Build();

            // 4. pass our AutoFac container to NSB for management. 
            Configure.With()
                     .AutofacBuilder(container)
                     .DefiningMessagesAs(t => t.Namespace != null && t.Namespace.EndsWith("yourMessageNamespace")) // aka Unobtrusive mode
                     .UseNHibernateTimeoutPersister()
                     .MsmqTransport()
                     .IsTransactional(true)
                     .DisableRavenInstall()
                     .IsolationLevel(IsolationLevel.ReadCommitted) // safe but not nuts
                     .PurgeOnStartup(false)
                     .UnicastBus()
                        .LoadMessageHandlers()
                        .ImpersonateSender(false)
                        .DoNotAutoSubscribe()
                     .CreateBus()
                        .Start(() => Configure.Instance.ForInstallationOn<NServiceBus.Installation.Environments.Windows>().Install()); // thunderbirds are go!

            Alarms.WriteInfoEventLog(200, "NService Bus initialise complete");
        }