Mat:

>The difference is six files: Hhctrl.ocx, Foxhhelp.exe, foxhhelpps.dll, Hh.exe, >Itss.dll, Itircl.dll.

On the target machine, can you open the CHM file from the desktop? If so, then the problem is still with Foxpro HTML runtime engine. If the CHM file does *not* show then the problem lies in the IE HTML runtime engine.

The only thing I can think is one or more files are not properly registered.

HTH,

--Paul