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Editorial Team
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Asked: 2026-05-23T06:41:30+00:00

If I am using MSMQ over the web, what happens if the network connection

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If I am using MSMQ over the web, what happens if the network connection is lost between client and server?

So can you still add messages to the Queue, and if so where are they stored? In the client app, or in the clients OS etc?

For instance if I have a windows service which is adding items to a queue in a different country. What if the network connection is lost, and the windows service is restarted. Do the messages get lost forever?

The other part of the question relates to the route that a message takes, is it sent directly to the receiving queue, or is it written into a queue on the client side? Does that require MSMQ to be installed on the sending server, and how about licensing for that?

Is there any good documentation to explain the required setup?

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  1. Editorial Team

    Update: Regarding your follow up question. Yes you have to install msmq on the sending server. There aren’t any licensing cost, because MSMQ is part of windows and not a separate software (just like the IIS). Here is documentation on “Setting Up a Message Queue” on windwos 2003.

    Before Update: Outgoing message are stored in the outgoing queue of the sending server. They are not lost if the sending service is restarted. They will wait in the outgoing queues ( which can be inspected with the msmq manager ) for I don’t know how long.

    if the msmq service or the sending server are restarted. Then “express” messages will be lost. express or recoverable are properties of non-transcriptional messages.

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