Using alsb for asynchronous messaging

hello @ all,
I like to implement a kind of asynchronous messaging.
It is only possible with the Routing mechanism (see http://e-docs.bea.com/alsb/docs21/consolehelp/proxyactions.html).
But the Client can not perform other works while the server prepares it response.
The question is: How can I use asynchronous messaging, when a client send a request and can continue performing other work while the server prepares it response and the server can notify the client when the response is ready?
The white paper from BEA (http://dev2dev.bea.com/2006/04/AL_Service_Bus_wp.pdf) and other documentation from BEA promise this kind of messaging style.
I use only http for transform Messages. Accordingly I like to accomplish SOAP communications over http for asynchronous requirements.
Can anybody help me to accomplish any scenario with the Aqualogic Service Bus in an asynchronously way?
thanks a lot
Fabio

Asynchronous messaging using HTTP is possible.
Please follow the below link for documentation
http://e-docs.bea.com/wls/docs91/webserv/advanced.html

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