Although Microsoft won't say when it will arrive, the next version of Windows Server won't be another minor release.

In an interview on Monday, server and tools unit president Bob Muglia said Microsoft is sticking to a schedule set out several years ago in which the server and tools unit puts out alternating minor and major releases every two years or so. The most recent update, the server version of Windows 7, was a minor update--Windows Server 2008 R2--completed last year.