Here is a neat and simple project (+test executable) to see how you can use the webbrowser control for your animated gifs.
Since this is on demand via innerHtml you can set about anything.
Think of flash ocx and such.
(Or load the flashcontrol as plain activex of course)

Since you can produce events from inside the html to PwrDev eventhandler you could make it more interactive.
Like an onclick or onload javascript may produce events for the PwrDev application.