How to implement Help System for an exit Web application

I want to know detail steps to use OHW create a Help System for an exit ADF web application.
I read a lot doc about Oracle Help.
I down load the demo bundle and test it. It seems working. But it need to start separately. Also I do not know how to use it to build a help system for an exit ADF web application.
Any body can help me to learn HOW with jdeveloper step by step.
Thanks.

Frank,
Thanks for your reply.
I checked the site that you mentioned.
I try the sample “demo with bundle. The sample worked.
But it needed to start separately with the application.
I do not know how to build a help system with the existed web application developed with Jdeveloper (It has two projects: model and user-view-control. It is deployed on Oracle Application server).
Could you help me step by step to build the help system?

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