You need the Help Viewer installed in the computer's client

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/htmlhelp/html/hwMicrosoftHTMLHelpDownloads.asp


regards

Francisco Morosini
>All,
>
>I wrote some code to display html help file:
>
>DECLARE INTEGER ShellExecute ;
> IN SHELL32.DLL ;
> INTEGER nWinHandle,;
> STRING cOperation,;
> STRING cFileName,;
> STRING cParameters,;
> STRING cDirectory,;
> INTEGER nShowWindow
>RETURN ShellExecute(0,'','hpandibm.chm','','',1)
>
>Some windows2000 machine can display but some windows2000 machine couldn't display. why?
>
>
>Ricky