The following code show a simple sample in VB .NET.:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ComInterface = New ehmInterface.XML
ComInterface.ConnectionString = msConnectionString
ComInterface.EnableSyncEvent()
Button2.Enabled = True
End Sub
Private Sub ComInterface_MultiClientSyncReady(ByRef ClientId As String) Handles ComInterface.MultiClientSyncReady
ListBox1.Items.Add("Event from " & ClientId)
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
ComInterface.DiableSyncEvent()
End Sub