Open Help File

I have fisnih a application in VB. I created a .hlp file.

How do i add this to be opened or incorporate with F1 key.

well 2 parts

1. Command to open the help file

2. How to open on f1 by default.

I'm searching the forum and cant see anything on this yet

Private Sub Form_Load()
App.HelpFile = App.Path & "\foo.chm"
End Sub

for opening it using command button click

ShellExecute Me.hWnd, "Open","YOUR FILE NAME" , "", "", SW_SHOWNORMAL


FOR F1 CLICK, U PLS SET THE 'HELP CONTEST ID ' PROPERTY OF EACH CONTROL. I THINK IT IS HELPFUL FOR U.....