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Windows 7's virtual 'XP mode' could mean support nightmares

April 27, 2009 12:00 PM ET

He also noted that while Microsoft is effectively extending the life span of Windows XP by offering it as a Windows 7 add-on, it hasn't budged on support. Microsoft shifted Windows XP out of mainstream support two weeks ago and will provide what it calls "extended" support only through mid-April 2014.

"[XPM] will give some a false sense of security," Silver warned. "What happens in 2014, when XP isn't supported anymore? I think companies will be much better off if they make all their applications run on Windows 7."

In the end, XPM illustrates a long-standing problem for Microsoft, said Silver: supporting aged applications. Silver and fellow Gartner analyst Neil MacDonald made waves last year when they argued that Windows was "collapsing" under the weight of nearly two decades of legacy code and decisions.

"This sheds some light on Microsoft's compatibility problems," Silver said today, "which slows people down in adopting the newest operating system. They're using this as a way to get Windows out there [on enterprise desktops] quicker, but this isn't the answer. It needs to morph into something that's supportable long-term."

Microsoft has said it will ship a beta of XPM "soon," but it has not pinned a more specific date to its availability. The company will, however, deliver Windows 7 Release Candidate to users of its MSDN and TechNet services on Thursday, and to the general public on May 5.

Read more about software development in Computerworld's Software Development Knowledge Center.



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