Has anyone out there ever used an excel 2007 MsgBox to display a
custom help file?

For many years I've used an excel MsgBox with a Help button to display
my help file at a given context id.

Excel 2007 seems to ignore the last two arguments of the MsgBox call,
and so does not display my help file.

On a userform I use Stephen Bullen's ShowHelp routine to show my help
file, and that works fine in excel 2007.

I hope I don't have to create my own Msgbox function with a userform.

Thanks,

Brian Murphy