Test for Authorization Support

After notification events are set, the server calls the QueryInterface method of the INSSEventAuthorization interface to determine whether the authorization interface is supported. All components must implement the INSSEventNotification interface. However, implementing the INSSEventAuthorization interface is optional. When authorization is supported, the server invokes the INSSEventAuthorization::GetAuthorizedEvents method to retrieve the array of authorized events, and thus determines which events require authorization.