OnInformation Event On SSIS Execution

Hi everyone,
 
I'd like to alter OnInformation event in order to add more parameters (as TaskHost). Is it possible? I've tried but appears an error:
 
OnInformation' cannot to implement OnInformation' because of it doesn't exists on the Microsoft.SqlServer.Dts.Runtime.IDTSEvents'
 
Sub OnInformation(ByVal taskHost As TaskHost, ByVal [source] As DtsObject, ByVal informationCode As Integer, ByVal subComponent As String, ByVal description As String, ByVal helpFile As String, ByVal helpContext As Integer, ByVal idofInterfaceWithError As String, ByRef fireAgain As Boolean) Implements IDTSEvents.OnInformation
 
I suppose that I must add an overload method but how?
 
 
Thanks for you help/advices,
Enric