For those of you having problems getting chm files working and requiring all the different foxhelp, etc files to be registered,......
I eventually decided on calling windows hh.exe files directly from foxpro. See my comments at http://fox.wikis.com/wc.dll?Wiki~HtMLHelp~WIN_COM_API
for more info - about 3/4 of way down, or search for my name on the page (Paul Lee)

>I built a help.chm
>
>It works fine by typing F1 from any form of my application
>However some of my costumers say that F1 does not work,
>but works for another windows applications
>
>Have anyone ever seen such a thing ?