Alessio,

I'd think I'd do it a little simpler:

<script language=vbscript>
function LaunchEXE()
Set oShell = CreateObject( "wscript.shell" )
oShell.Run "YourVFPProgramHere.exe"), 1
end function
</script>

...

<input id="btn1" type="button" value="Click Me!" onclick="javascript:LaunchEXE();">

>thanks, I think your solution is good, I should try it a little more to understand it. Is it the same of this solution with the difference that the following one is based on buttons ?