On your way in you may have missed that we have a policy on screen names here at JavaRanch. Basically, it must consist of a first name, a space, and a last name, and not be obviously fictitious. Since yours does not conform with it, please take a moment to change it, which you can do right here.
As to your question, messaging services can't be accessed by web browsers because they do not use the HTTP protocol (which is what browsers use). They also do not generally operate according to a request/response model, but a publish/subscribe model.
Given this, I'm not sure how to answer your question. Can you tell us in more detail what you're trying to do?
Ping & DNS - updated with new look and Ping home screen widget
I believe you are asking about creating some kind of request/response model using conversation ID/corellation ID etc. Generally speaking as the previous poster said it's an async system. You have separate request and response queues and corresponding handlers. Not sure what else you are asking for?