DocumentComplete Event: URL obtained through VARIANT* URL and get_LocationURL are different

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MFC

WebBrowserControl

Hi All,

I have been working on a client-server application. The client application uses a web browser control to interact with the server. Users can create new login using the login page provided by the server. On successful creation, we get a welcome message. On receiving this, the client application has to start some activity. I am relying on the BeforeNavigate to and DocumentComplete event handlers.

What I have observed is the following:
In BeforeNavigate2: When "welcome" page is loaded, I am not getting the URL of the "Welcome" page.
In DocumentComplete: In VARIANT* URL, I am getting the proper "Welcome" page URL, but if try to the URL through browserControl->get_LocationURL, I am not getting the URL.

What I get is the login page URL.

I though any page that gets loaded will generates the BeforeNaviagte2 event and the URL obtained through get_LocationURL is same as we get in VARIANT* URL. But my understanding seems to be wrong.

Can any one please help me here in understanding this and also what is that I am missing?

Thanks in advance.