How to call particular topic in custom help file from Excel

Hi,
I try to call from Excel VBA to a particular topic in a custom help file (by using HTML help workshop) as method below:
MsgBox(prompt[, buttons] [, title] [, helpfile, context]).

I able to locate the help file & path in [helpfile] section.But I have no idea how to assign a context number in that custom help file. When I press help button (from msgbox), it appear error message as "HH_Help_Context called without a [map] section".

Although HTML help workshop is good & user friendly, but I fail to follow that step. Any advice is much appreciate. Thanks.

Fr, CS

I found this info on Microsoft's website:

http://www.microsoft.com/technet/pro...art2/ch13.mspx

Hope this helps,
theDude

Hi,
Thank you very much. It is very useful.