Public Event NavigationProgress As NavigationProgressEventHandler

Dim instance As Application
Dim handler As NavigationProgressEventHandler

AddHandler instance.NavigationProgress, handler

public event NavigationProgressEventHandler NavigationProgress

public:
 event NavigationProgressEventHandler^ NavigationProgress {
    void add (NavigationProgressEventHandler^ value);
    void remove (NavigationProgressEventHandler^ value);
}

JScript does not support events.

<object NavigationProgress="NavigationProgressEventHandler" .../>