Quite simply, whilst you can run dual versions of RH HTML,
you cannot run dual versions of RoboHelp for Word. You have got to
choose one or the other.
You can have both versions of Word on the PC with RH7 if you
have some other reason beyond compatibilty with X5. There is
information on my site about that.
If TCS was purchased as an upgrade, then you can no longer
use X5.
Help others by clicking Correct Answer if the question is answered. Found the answer elsewhere? Share it here. "Upvote" is for useful posts.