Excerpt: GS: The additional functionality is only one half of the equation; the other half is security. The kind of changes required to protect our customers were things we had to change at the core IE platform. Thus, a lot of changes we made -- rewriting entire sections of the code, changing the way ActiveX works with ActiveX Opt-In, and changing the way the security settings worked -- required changes to the core of IE itself. In addition, the features are things our customers have asked for. There are certain customers that love using the IE add-ons and will keep doing that. And there are many other customers who say we want to use IE, but we want to see some additional features like tabs, better printing, page zooming, integrated RSS, and so forth.