With the year coming to an end, Microsoft will have a big bang of launching the business debut of Windows Vista and Office 2007 at a November 30 event in New York City.

“This event will mark the business availability of three major releases from Microsoft,” the software maker said in an invitation e-mailed to the press yesterday. The announcement makes good on Redmond’s promise of delivering Vista in 2006 — in a manner of speaking.

The Windows lovers won’t get its hands on the new OS until early 2007 — March 15 at the latest, according to the Express Upgrade to Windows Vista and Microsoft Office Technology Guarantee program. See what Vista coupons will get you.