I believe BMPs are automatically converted to JPGs when you generate a CHM. You could reverse engineer a CHM to check (how is on my site).
It is more likely the number of topics and images that is the issue.
Do you have to install the CHMs for all languages? Can that not be an install preference, if it is not already one?
See www.grainge.org for RoboHelp and Authoring tips
Thanks for the response Rick.
Yes we do have to provide a distribution with all our supported languages. There are customers that need to switch between languages on the same computer.
I think our goal at this point is to try to simplify the help and cut the # of images used.
LOL, I think you meant Peter.
Sorry... I meant "Peter". (I had "Rick" on the brain from chatting with him at work. )