I see you posted the question here as well as the TechShoret
list. I further see you have at least one reply over on TechShoret.
Here are my thoughts. Yes, you can do most of what RoboHelp
for Word can do using RoboHelp HTML. I say "Most" here because
there are a couple of things you can't do. You can't easily create
a .HLP file using RoboHelp HTML. RoboHelp HTML doesn't offer tabs
like you can use with RoboHelp for Word.
Now I realize that may sound a bit as if I'm saying that
RoboHelp for Word is superior to RoboHelp HTML. I'm not. As with
anything in life, there are trade offs and things to consider. In
this case, I would say you should consider the output type.
Most everything is moving away from WinHelp (.HLP files) and
toward an HTML based format. I noted the TechShoret reply mentioned
that with RoboHelp for Word, everything is stored in a single Word
file, vs having multiple HTML files with RoboHelp HTML. While this
is true, I would say that if your output is going to be HTML based,
you should seriously consider using an editor that was designed
from the ground up to support HTML. Let's face it. Anything HTML
coming from Word is a kludge, as Word was designed for print. There
are also some things that will constantly frustrate you if you
elect to use RoboHelp for Word and are creating HTML output.
So while it may seem an attractive option to use, I'd suggest
avoiding RoboHelp for Word and going with RoboHelp HTML.