Hi Adrei,

I appreciate your gesture for introducing me to a very powerful, robust and flexible tools which are indepensible for any ambitious developers/programmers.

However, since my requirement was a limited one, I managed to accomplish with the following concept:

In the outlook Project1 (ThisOutlookSession)-
---------------------------------------------
Public WithEvents olInspectors As Outlook.Inspectors

Private Sub Application_Startup()
Set olInspectors = Application.Inspectors
End Sub

Private Sub olInspectors_NewInspector(ByVal Inspector As Outlook.Inspector)
'Subroutine calls to work with the Outlook mail message body
ComposeMessageForPhoneNumber
End Sub
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Thanks once again!