That move was, in fact, more significant than Monday's, as it accompanied a promise by Microsoft to support all versions of an operating system, including consumer-targeting SKUs, or "stock-keeping units," for at least 10 years.
And in Jan. 2007, Microsoft extended mainstream support for Windows XP Home to 2009 and its retirement date to April 2014, primarily to sync its timetable with Windows XP Professional's but also recognizing reality: XP would remain a powerhouse for the foreseeable future.
According to metrics company Net Applications, Windows XP accounted for 42.5% of all operating systems used to reach the Internet last month. At its current -- and relatively slow -- rate of decline, Windows XP should still be powering one in four personal computers in April 2014.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, send email to firstname.lastname@example.org or subscribe to Gregg's RSS feed .
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