Display web content inside chart window

 

I'm looking for some way of creating web browser box inside a chart. Basically, it should just open some web page. 

I found some EA's are doing it by replacing whole chart area with web browser. Example http://snag.gy/gdap0.jpg 

 I searched entire forum, but only thing found is possible usage of WinInet lib. Also, EA's that have this feature, are using additional dll with methods DisplayBrowser, RemoveBrowser.

Does anyone have an idea or example how this can be done?

Thanks