Microsoft said the number of Windows Vista licences sold has hit 140 million. The announcement was made during the company's fiscal third-quarter earnings call.
While the 140 million represents licences sold, it does not reflect how many of those licences are actively being used to run Vista. Companies still have the option to buy a Vista licence and use downgrade rights to run XP.
Microsoft's latest desktop operating system, which was released in November 2006, has dominated headlines recently with users complaining about application compatibility issues and analysts debating the value to businesses of moving to the platform.
The company also recently released Vista Service Pack 1, which has traditionally been a trigger for IT to take a serious look at the operating system. The Service Pack, however, has had its own set of issues.
In June 2007, the company reported that Vista sales had hit 60 million.
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