Microsoft Corp. today again warned users of Windows XP Service Pack 3 (SP3) that they may not be able to uninstall either the service pack or Internet Explorer 8 (IE8).The warning, made by Jane Maliouta, a Microsoft program manager as the company delivered Release Candidate 1 (RC1) on Monday, was a repeat of a caution she gave last August when Microsoft launched the browser’s second beta.
Google deserves much credit for the wealth of security information (download PDF) posted on the Internet and on its Google Chrome blog and for making Chrome’s source code available for anyone to examine.The security model Chrome follows is excellent. Chrome separates the main browser program, called the browser kernel, from the rendering processes, which are based upon the open source WebKit engine, also used by Apple Inc.’s Safari. The browser kernel starts with all privileges removed, the null SID (a security identifier in Windows Vista that denotes the user as untrusted), and multiple “restrict” and “deny” SIDs enabled. On Windows Vista, Chrome runs as a medium-integrity process.
As most Windows watchers know by now, Windows 7 brings a handful of interface tweaks to the table, starting with large, eye-pleasing program icons that take up residence in the taskbar. Of course, this is little more than an update to the Quick Launch feature that debuted in Windows XP. And believe it or not, Vista users can easily bring that Windows 7 look to their own taskbars.
Demand for PC components may have fallen off a cliff in recent weeks, but Microsoft could be forced to pony up for $8.52 billion-worth of memory and graphics cards, according to an expert witness for the plaintiffs in the ongoing “Vista Capable” class-action lawsuit.

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