What is Windows® 7 Upgrade campaign?

Windows® 7 upgrade campaign is to provide customers who purchase a qualifying Windows Vista® based VAIO model * between June 26, 2009 and January 31, 2010 can receive an upgrade to Windows® 7 from Sony at a special price.
*Only models released after February 2009 qualify. Models with preinstalled Windows Vista Home Basic do not qualify.
Please visit the section below for a list of qualifying models.

Upgrade Campaign Asia Pacific Portal