Avon,
The TOC, Index and Search data files are in the output
folders whdata, whgdata and whxdata.
If the overall file is small, all data is in one file. If an
Index, for example, is large (let's not worry for now about what's
small and large are), the contents are divided into multiple small
files for loading content by chunks, so you don't have to wait for
the entire Index to load before seeing the top and entering a
search term.
RH creates a sort of index file for the multiple Index files
so it knows which files to load.
This is greatly oversimplifying, of course. But it's about as
much as I understand.
RH tries to satisfy needs and capabilities of different
browsers, so there are tthree sets of files -- one for later IE
browsers, which can use a combination of html, dhtml and xml
techniques; another set for earlier IE and some other browsers that
can't handle xml or can't handle RH's flavor of dthml, and some
that are even less capable.
That's why, for example, some browsers display the Index with
a popup menu of links to multiple topics, and others show one or
more numbers with each entry as links to separate topics.
You needn't do anything to ensure that they get into the
output package.
Harvey