Welcome to our community, Varuna
Firstly, I'm guessing here that CHTML means "Compiled HTML"?
As in a .CHM file?
I'm not surprised in the least that RoboHelp doesn't seem to
have a clue what a .IDL or .tlb file is. I'm just guessing that
these are proprietary to DocumentX?
I'd say the easiest way to "integrate" this into RoboHelp
(Assuming I'm correctly understanding that DocumentX creates
compiled .CHM files) would be to decompile the .CHM that DocumentX
created, then bringing the decompiled files into RoboHelp.
Cheers... Rick