EventBroker concept from the CAB

Hi All.

I have been reading up on microsoft's patterns & practices Common
Application Block and although it would be impossible to re-write my
application to take advantage of the CAB, I would like to be able to use
the concept of the event publications and subscriptions (EventBroker).

The EventBroker in the CAB provides loosly coupled events (that is, the
publishers does not know about the subscribers and vice-versa). The
relationships between the publisher and subscriber is ensured through
event URIs. 

Does anyone know how to implement this -without- using CAB?

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