[jboss-user] how to replace Jacorb with different corba implementation

Hello all my application is using corba to communicate with third party application right now im using jacorb the one that comes with Jboss 4.2.2 but i want to replace it with visibroker corba client jars (i just put it in the Jboss lib ) and in my application i init the orb with the right ( visibroker ) implemention the Jboss cant find the jars . and they are in the same dir as the jacorb.jar my question is how can i configure Jboss to use differnet corba jar's Thanks