Search for the file "foxhhelp.exe" it is not in this machine copy it. then do this:

foxhhelp/regserver from the command pront

>I have created an EXE in VFP that is integrated with a RoboHelp HTML help file. It works fine under Win 98 in which it was developed, but in Win XP it won't access the help file using either F1 or the menu. I have tried a lot of things to get it to work, but have had no luck. Any ideas would be helpful.
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>Thanks