XP extended support will end on April 2014. Antivirus will also cease support (most of them). This means that the day after, there will be a dozen of 0-days (cu

XP extended support will end on April 2014. Antivirus will also cease support (most of them). This means that the day after, there will be a dozen of 0-days (currently being held) exploited in the wild. I hope those organizations you cite have a plan for April. If they run XP, they must update. If they run Vista+, they can switch to a newer IE and use GPO to force IE8-mode for the intranet (if they wish so).