RH7 is what creates help. RH Server is used if your output is
WebHelp Pro or FlashHelp Pro. The two are quite separate.
If your help is client side then you need HTML Help, a
compiled CHM file, so you have no need of RH Server. WebHelp can be
installed client side if you insert the Mark of the Web but you
will have problems with links to PDF files.
I wasn't precise enough when I said client side help. I'm
actually thinking a web-based delivery (flash-help) that could
possibly be cached (if/when flash help supports AIR) for use when
the user is not actually connected to the internet. But thanks for
the pointer on limitations of using MOTW wrt PDF links. that is
nice to know as well.