Report Predicts Delay of Microsoft’s Vista Launch

Microsoft Corp.’s long-awaited release of the upgrade to its Windows operating system will probably be delayed again by at least three months, research group Gartner Inc. said.

The research note said the new Windows Vista operating system was too complex to be able to meet Microsoft’s targeted November release for volume license customers and January launch for retail consumers.

A Microsoft spokeswoman said the company disagreed with the Gartner report and was still on track to meet its launch dates.