Microsoft claims an error in a email led to reports that it has released a trial version of Vista Service Pack 1 when, in fact, no date has officially been confirmed for its launch.

The confusion began on Tuesday when website WinBeta.org posted an email from Microsoft’s Windows Driver Kit (WDK) team saying Microsoft had released a beta version of Vista Service Pack 1 (SP1).

“A new beta WDK build is now available for download on Connect,” said the email. “This WDK beta release to Connect coincides with the recent OS beta release for Vista SP1 Preview.”

Read more: ZDNet UK