The move raised a ruckus as the online ad industry, large advertisers like Coca-Cola, and some of the biggest Web properties, such as Yahoo, not only objected to IE10's on-by-default setting, but decided they would not honor the signal.
The Worldwide Web Consortium (W3C) standards-setting organization, tasked with coming up with a DNT standard, has essentially deadlocked over Microsoft's unilateral decision.
Until today, IE10's DNT position has been relatively easy for opponents to ignore, since the browser was available only on Windows 8, which has had trouble gaining ground. But the automatic upgrading of Windows 7 machines to IE10 means that some 700 million PCs may soon be sending a DNT signal.
IE10 requires Windows 7 Service Pack 1 (SP1), as Microsoft will drop support for Windows 7 RTM in April.
Businesses can prevent IE10 from being automatically installed on their machines by deploying the blocking toolkit Microsoft issued earlier this month, or by using the standard update management tools, Windows Server Update Services (WSUS) or Systems Management Server (SMS).
Users who don't want to wait for Windows Update to kick in with the upgrade can downloaded IE10 manually from Microsoft's website.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, or subscribe to Gregg's RSS feed . His e-mail address is email@example.com.
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