"I'm on record as saying that everyone should install Microsoft's forthcoming Windows XP Service Pack 2. The ambitious security-centric upgrade to Windows XP offers a necessary change in the way Windows XP operates, bringing it up to date with the security realities of 2004. Service Pack 2 is, overall, a good thing.
But it might also be described as a necessary evil. Why? Windows XP Service Pack 2 represents the first real evidence that security threats will not only profoundly change the way IT departments operate, but the way 95 percent or so of the world's computer users work with that most fundamental of applications: the Web browser. And the biggest consequences fall on the shoulders of businesses and organizations, whose Web sites, intranets, and Web-based enterprise apps have relied on the freedom and functionality extended by the more lax security of previous versions of Internet Explorer.

In getting a little bit tougher on security, Microsoft is requiring literally thousands and thousands of Web sites and millions of browser users to alter the way they work with Internet Explorer."

read more at:
http://nwc.desktoppipeline.com/showArticle.jhtml?articleID=23902106
By Scot Finnie