If you want to exclude any topic from being searched in WebHelp, FlashHelp, or Adobe AIR output, all you need to do in RoboHelp 8 is select the Exclude From Search option in topic properties.
Although the topic appears in the Table of Contents, the topic is not searched.
How to exclude topics from search in CHM output
Using the Exclude From Search option does not work in CHM output. There’s always a workaround though as you’ll find in this forum thread.
How to exclude topics from search in earlier versions
If you use an earlier version of RoboHelp, you can still exclude topics from search, using a Conditional Build Tag, say ‘Exclude_from_Search’. The procedure is documented here.
As I said, RoboHelp 8 makes excluding topics from search easy!