I can't make the .CHM help do fire within a VFP9 .EXE aplication.

I'm sure that the .CHM exists, the instructiond "set help ON" and the "set help to myhelp.chm" are executed

The strange thing is that if I manualy run foxhhelp9.exe by double clicking in the Windows Explorer then the help does fire.

I'm I missing something in the instalation in the clients site.

I´m installing the following at the client's PC, which supposed are the help related files:

foxhhelp9.exe
foxxhhelpps9.dll
hhctrl.ocx
hha.dll

Any advice on this.

Thanks in advance