if any one can tell me how do i attach a file to outlook new message wizard as and when it opens in the onclick event.

Dim newprocess As New System.Diagnostics.Process()
newprocess.Start("mailto:[email protected]")

this code verywell opens a new mail wizard in outlook.
but i also need the code that attaches a file as it opens this new mail wizard. replies are most welcome,as i have a very urgent requirement for the same