With improved speed and support for HTML 5, Internet Explorer 9 could be Microsoft's next step toward restoring its old mojo. Microsoft hasn't shown very much of its next Web browser, and hasn't announced a release date. The most you can do is preview some of Internet Explorer 9's capabilities, which say nothing about the browser's user interface. Still, what Microsoft has shown so far is enough to get people excited. Previous versions of Internet Explorer have lagged behind other browsers on speed and support for new technology - the problems that Microsoft is working on with IE9. While Microsoft used to insist that Javascript speed wasn't that important, it's now using benchmarks to show that it can go toe-to-toe with any browser. Support for HTML 5, which is still not a standard, hardware-accelerated 3D graphics show that Microsoft is thinking ahead on performance. What we don't know about yet are user interface and security. Even if Microsoft overhauled neither, Internet Explorer 9 would still be in pretty good shape. IE8 got creative with accelerators and Web slices. It also caught up with the competition on features like drag-and-drop tabs and private browsing. With the addition of other security features, a test by NSS Labs, albeit sponsored by Microsoft, found that Internet Explorer 8 was the safest browser. But users of Chrome and Firefox are likely to say that something just feels faster about their browsers, and for good reason: PCWorld's speed tests from last summer put Chrome ahead of the pack, and Firefox in front of Internet Explorer. With IE9, Microsoft's at least showing a willingness to join the horse race. Of course, Microsoft still has a wide lead in the browser wars. In the most recent market share estimates from NetApplications, Internet Explorer has 61.2 percent, compared to 24.2 percent for its closest competitor, Firefox. However, IE's share slides every month, and the browser now faces tougher competition from Google Chrome. It's possible that Microsoft will be powerless to bring back defecting users. There may be something about the look and feel of Internet Explorer, or its standing as the most common target for security attacks, that drives people away. But at least Microsoft's tackling the issues that have held its browser back from greatness. Here's a quick primer. What's new in Internet Explorer 9? Microsoft is touting IE's speedy performance and its much-improved support for Web standards. The browser's strongest attribute is likely its adherence to HTML5, the major revision of Web's core markup language that's still under development. HTML5 will allow IE9 (and other browsers) to move beyond resource hogging browser plug-ins, like the ubiquitous Adobe Flash, to display multimedia content online. Toss in better CSS 3 support (to help Web designers created the right look for their sites) and an improved JavaScript engine (to the crank up the speed of Web apps), and IE9 promises to be a more nimble browser that eschews the slow, lumbering Internet Explorer versions of the past. Any particularly cool platform preview features? Microsoft has released a few technology demos that spotlight IE9's improved handling of JavaScript, its HTML5 capabilities, and its support for hardware-accelerated graphics. These are mostly simple demonstrations, such as flying images, map zooming, an HTML5 t-shirt designer, and GPU-powered falling balls. Naturally, you'll need to download and install the Platform Preview to check them out. Will the preview run on my PC? Yes, if you're running either Windows 7 or Vista. On Vista, however, you'll need to install Internet Explorer 8 (if you haven't already) and the Platform Update for Windows Vista, an OS upgrade that allows Vista to use some Windows 7 technologies. And while the IE9 Platform Preview comes only in a 32-bit x86 version, it'll run on 64-bit Windows 7 and Vista PCs too.
