MSMQ:传递到远程队列时未返回确认

我有以下代码片段来测试MSMQ确认:

    static void Main(string[] args)
    {
        string queuePath = args[0];
        string ackQueuePath = args[1];
        MessageQueue queue = new MessageQueue(queuePath);
        MessageQueue ackQueue = new MessageQueue(ackQueuePath);
        Message message = new Message("Body text");
        message.Label = "test";
        message.Recoverable = true;
        message.TimeToReachQueue = new TimeSpan(0, 1, 0);
        message.TimeToBeReceived = new TimeSpan(1, 0, 0);
        message.AdministrationQueue = ackQueue;
        message.AcknowledgeType = AcknowledgeTypes.FullReachQueue;
        queue.Send(message, MessageQueueTransactionType.Single);
    }

(两台计算机都是Windows 2003。)