It's the result of 17 months development effort from a team of over 250 people. Among the improvements are enhanced frames, element behaviours, custom XML tags, vertical text layout, and editable regions within an HTML document. Do stuff faster , is how Microsoft describes it. This language enables synchronisation of streaming media, HTML element timing, animation, and new capabilities to enhance the accessibility of multimedia Web content.
Users can also zoom in on any part of the browser window.
Improved frame technology, using ViewLink, means that IE 5.5 can display multiple frames from a single instance of the browser. Since IE 5.0 used to run a different browser engine for each frame, pages with frames can now load 30 to 75 per cent faster. For more detailed information see our session report on IE 5.5 from TechEd 2000.