Does anyone use a help system besides JavaHelp for on-line help?

I've read a lot of posts, documents, and have tested JavaHelp for RCP (and non-RCP) applications. I have learned the advantages of JavaHelp, and come across a few disadvantages. I also searched for a GUI that will automatically modify the map, toc, index, etc. meta (xml) files pertaining to the structure of a particular help set. If one exists, I would be interested in learning about it.

This search has brought up another question -- what are developers actually using out there? Is JavaHelp used with deployed applications, or in actual practice are they accompanied by a traditional pdf or other stand-along document? One advantage I can see to having the documentation separate is that it can be updated without the need to re-deploy the application. For RCP apps, the closest I've come is to have the help set in a separate module, then use update manager/plugins to release updates to the help documentation. This seems to work pretty well, but overall the entire process still seems a little 'klunky'. I am not complaining, just wondering what people are doing in general before choosing a path to take. I would appreciate any feedback. Thank you.

Doug.