Welcome to the forum
Sorry you are not getting much of a response. I suspect most
people use WebHelp or WebHelp Pro but not both, hence the
difficulty in comparing them.
I don't think you will find any discernible difference in
response speeds. Pro offers favourites and the ability to search
Word documents and PDFs as well as the content. You can get that by
using ZoomSearch as described on my site for a lot less money. Pro
gives you feedback.
RoboHelp Server is nothing to do with multiple authoring.
That is part of RoboSourceControl and they are two different
things.
Originally RoboHelp Server was also required to deliver
merged webhelp but from X3 onwards, that became available with
WebHelp, which is what I use.
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