As Windows XP Deadline Looms , OEMs Turn To Vista Downgrade Rights Microsoft may be preparing to discontinue sales of Windows XP, but some OEMs have found a way to circumvent the software giant's June 30 deadline.In yet another sign of the market's resistance to Windows Vista, Dell Computer, Hewlett Packard , and Sony on Wednesday all confirmed plans to exercise the downgrade rights Microsoft offers with OEM versions of Windows Vista Business and Vista Ultimate in order to continue offering XP-equipped PCs to their customers ... in Public bookmarkswith microsoftoemvistawindowsxp Note: As Windows XP Deadline Looms , OEMs Turn To Vista Downgrade Rights