Microsoft has wrapped up development of two major products, Windows Server 2008 and the Service Pack 1 update to Windows Vista, CEO Steve Ballmer told financial analysts Monday.

"Both products have released to manufacturing today, which is good news," Ballmer said.

Ballmer highlighted a few big corporate deployments of Vista, including at Continental Airlines, which is in the process of upgrading 10,000 systems.

"We think we are turning the corner in terms of enterprise deployment, and Service Pack 1 will be a huge boon," Ballmer said.

Microsoft will begin distributing Vista SP1 via Windows Update in mid-March, according to a Microsoft blog post on Monday.

Microsoft is due to formally launch Windows Server 2008 on February 27 at an event in Los Angeles.