訊息佇列將在傳送以 RC2 加密方法加密的訊息時，使用有效長度 40 位元的加密金鑰。若要恢復增強式加密，請移除登錄值 HKLM\Software\Microsoft\MSMQ\Parameters\Security\SendEnhRC2With40。

Message Queuing will use an encryption key with an effective length of 40 bits when sending messages encrypted with the RC2 encryption algorithm. To restore strong encryption, remove the registry value HKLM\Software\Microsoft\MSMQ\Parameters\Security\SendEnhRC2With40.