Be sure to install the Visual Foxpro Help support, it has a merge module that you can include with Installshield, I think it's called FOXHELP
Luis
>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 ?
I never forget a face, but in your case I will make an exception :-)