Ever written a public event into a WebService?

[Interwizard]

Is it possible to code a custom event into a asp.net webservice and have a calling app listen for that event?
On my WebService, I have:

Public Event OrderComplete(ByVal Sender As Object, ByVal e As OrderCompleteEventArgs)

Public Class OrderCompleteEventArgs
Inherits System.EventArgs
'Plan was to put some custom properties here.
End Class

On my calling Winform, I have:

Public WithEvents OrderService As New wsOrderNewOrderEntry.OrderEntry

Private Sub OrderService_Start(ByVal sender As Object, _
ByVal e As EventArgs) Handles OrderService.

'...
End Sub

But... as I go to fill in the very necessary Handles OrderService.OrderComplete, the debugger accepts no events for OrderService.. Is this even possible or am I smoking crack?

Many Thanks,