First of all, RH7 has introduced some new and some changed
project files, none of which you should be editing, and none of
which you should be mixing between project versions (I suspect
that's the case here.)
You also seem to be mixing up source and output files, as
evidenced by your later posting, where you question the use of
these:
eHlpDhtm.js - what does it do? (
internal-to-RH source file)
whtdhtml.htm - what does it do? (
output file that holds TOC styles and calls internal-to-RH
source files)
The purpose of the whxdata, whgdata, and whdata folders (
output folders that contain .js, .htm, and .xml files that
spread around the info for TOC, Index, and Search, for quicker
performance)
You should have made a copy of your X5 project somewhere,
then opened RH7 and imported the project. Keep in mind that once a
project is opened in RH7, it cannot be opened in X5 (therefore the
admonition to copy the project elsewhere before you begin.
Good luck,
Leon