>The HTML help of my application works fine inside VFP developement (.APP) and in .EXE in my developeing PC.
>
>But when I install the application at the clients site it does not fire, it seems that something is missing maybe a .DLL or something.
>
>I´m using VFP7.0
>
>Any help on this?

Try distributing the latest hhupd.exe. Download it from the following MSDN page: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/htmlhelp/html/hwMicrosoftHTMLHelpDownloads.asp
HTH