How does MSMQ manage messages?

It seems that MSMQ doesn't use any Database management system to manage messages.
How does MSMQ manage messages?
Does it store the messages in flat file?

I'm trying to implement a messages management system.

Solution

MSMQ uses flat files located in %windir%\system32\msmq.

If you want to implement your own queueing, I suggest you take a look at Ayende's blog post on queueing

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