在Windsor IOC容器中，可以注册我已经拥有实例的类型，而不用让容器创建它吗？

解决方案

容器的内核属性上有一个AddComponentInstance方法。

从单元测试：

[Test]
public void AddComponentInstance()
{
    CustomerImpl customer = new CustomerImpl();

    kernel.AddComponentInstance("key", typeof(ICustomer), customer);
    Assert.IsTrue(kernel.HasComponent("key"));

    CustomerImpl customer2 = kernel["key"] as CustomerImpl;
    Assert.AreSame(customer, customer2);

    customer2 = kernel[typeof(ICustomer)] as CustomerImpl;
    Assert.AreSame(customer, customer2);
}

[Test]
public void AddComponentInstance_ByService()
{
    CustomerImpl customer = new CustomerImpl();

    kernel.AddComponentInstance <ICustomer>(customer);
    Assert.AreSame(kernel[typeof(ICustomer)],customer);
}

[Test]
public void AddComponentInstance2()
{
    CustomerImpl customer = new CustomerImpl();

    kernel.AddComponentInstance("key", customer);
    Assert.IsTrue(kernel.HasComponent("key"));

    CustomerImpl customer2 = kernel["key"] as CustomerImpl;
    Assert.AreSame(customer, customer2);

    customer2 = kernel[typeof(CustomerImpl)] as CustomerImpl;
    Assert.AreSame(customer, customer2);
}