Users attempting to upgrade from Microsoft Windows Vista Ultimate Edition to Windows 7 Build 7100 (the unofficial RC1 release leak), are greeted with the following "compatibility warning" dialog:
Windows Vista Ultimate Edition’s "Ultimate Extras" have been a constant source of derision and anger from Vista users ever since its release 3 years ago. If the blog posts are to be believed, millions of users purchased Windows Vista Ultimate Edition in the hope that the added-value "Ultimate Extras" package – which was left un-described and of unknown worth at the time – would turn out to be a good investment.