VB-RoboHelp-Context Sensitive Help

Hi

I have prepared an Help project using RoboHelp (6.0).

This help file can be called from my VB Application for which i have developed.

When i'am in any form and click "F1" my help file appears. The problem i'am facing is that the help must be context sensitive i.e. the help pertaining to that particular form should appear.
Can the problem be solved by using Whatsths.exe provided by Robohelp, if so How ?

How do i link the WhatsThisHelpID property of the controls in the form to the
help topic ?

Satheesh