ExecFile problems

Blitz3D Forums/Blitz3D Programming/ExecFile problems

The forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.

I have a function that is suppose to launch a help file in a browser:

Function ShowHelp()
sFile$ = CurrentDir$() + "\help\help_main.htm"
ExecFile(sFile$)
End Function

On a couple machines, this works fine. But on most, when the function is run, the game window that runs this function loses focus (the titlebar dims), but the help file never launches. If on these machines I double-click the htm file itself, it comes up fine, so I don't think it is an association issue.
Any ideas?
thanks...Dave