How are messages sent over TCP in Windows, in particular queuing?

Question

Computer networks

Good evening, comrades, a question arose.
1) There is a server on which Windows Server 2008 is installed,
2) My service is installed on it, which sends messages to subscribed clients,
3) There is a MessageQueue inside the service.
Sometimes it happens that a huge number of messages accumulate inside this MessageQueue, while the network is not heavily loaded. There is a suspicion that some handler inside OC does not have time to cope.
The question is, what is the name of this handler? How does the queue accumulate inside it and is it possible to somehow monitor it using known means? I would be very grateful for any hint in which direction to dig, and what to read about this. Thanks in advance!

Answer 1

My priest feels that all messages go in one stream. Maybe a lot of threading is not implemented in your service?
This is what I suggested as an option.
Because jms without a thread is a dead end (this is my personal experience in Java).