Hi EmmaG2 and welcome to our community
Unless I'm mistaken, you are referring to a feature known as
"airplane help". This is something your developers would do. I have
no idea how to set this up, but as I understand it, you create a
compiled .CHM version of your help system. The compiled .CHM is
placed on the user's local hard drive. Then your developer
configures the call to help so that *IF* the connection to WebHelp
Pro is unavailable (as would be the case if you were traveling on
an airplane-hence the term "airplane help") then the call
automagickally switches to the offline version. How well this works
in actual use remains to be seen. We often see that RoboHelp's very
own help often fails users and presents a blank window. And the fix
is normally to configure RoboHelp HTML to simply always look for
help locally.
I can't imagine this would take place without some .DLL in
the picture that your developers will need to call. Try looking
inside the help file that ships with RoboHelp HTML. Look in the
Index using the term: "Airplane Help".
Hopefully this helps... Rick