Hi,
I built a Excel Add-in using VC++ 6.0 and had compiled my own HTML Help
..chm file. I would like to be able to provide context-sensitive help
for the functions I defined in the Add-in, so that when the user click
on the "Help on this Function" link in the Insert Function dialogue
box, the HTML Help viewer window will pop up.

I know this is possible if I use WinHelp file and pass the
[filename.hlp]![contextID] in the help_topic parameter in the Excel4()
Excel API macro in the C++ code. Is there an equivalent string I
should use for HTML Help?

Thanks,
J