Microsoft will be extending the Windows XP downgrade option until 2011. While Microsoft has threatened to halt the option on numerous occasions, it has yet to set a date, write it in stone and actually make good on the promise. The reason behind the extension was that the Windows XP downgrade option was originally set to take place 6 months after the launch of 7 and business that have large scale Windows XP deployments may not be ready to convert to Windows 7 in as little as six months, or at least stop purchasing OEM systems with it as an option. As a result, the option to downgrade to XP has been extended to 2011. Enterprise customers on Microsoft's Software Assurance program can downgrade Windows 7 licenses all the way back to Windows 95 or Windows NT 3.51.