Thanks Marcony for the good document, This explains extra processor technique simple and very clear. Great Job !!!!
This archive contains sample project that describes usage of extra processors.
Trying to describe one real life problem, I tried also to put some more light on extra processor technique, which is not very well documented in ArcSight's documentation. All needed sample project files can be found at this archive, as well as document that describe everything you should do to re-create the scenario described, so after reading it, you should be able to make your own projects that might use extraprocessors for similar cases.