The lookup identifier, introduced in MSMQ 3.0, is a 64-bit identifier that is generated by Message Queuing and assigned to each message when the message is placed in the queue.

• 在MSMQ 3.；0中引入的查找标识符是消息队列生成的64位标识符；它在每个消息被放入队列时给消息分配一个此标识符。