El evento Class_Initialize se asocia automáticamente a cada clase de forma predeterminada.
Class_Initialize se desencadena siempre que instancie un objeto basado en la clase.
Ejemplo:
Class Main_Class
Private Sub Class_Initialize
' Initalization code goes here
End Sub
End Class
'Whenever a class is instantiated, class_initialize event will be called by default.
Set oMain = new Main_Class