Assume you have configured the help button to initiate a customize callback:
<commands> <command idMso="Help" onAction="OnActionHelpButton"/> </commands>
While a click on the help button on the ribbon initiates the callback in a proper way, a click on the help button in the BackStage area opens the
Access help.
This is a bug in Access 2010 and the only option is to disable the Help button completely.
<commands> <command idMso="Help" enabled="false"/> </commands>