Microsoft has released the April 2007 Cumulative Update for Media Center for Windows Vista.
Robert McLaws says he had some problems with IE7 and Outlook 2007 after installing it, so caution is, as always, in order.
This one is being delivered as a Recommended update, so if you check Windows Update on a supported system (Vista Home Premium or Ultimate), you’ll see it in the list of available updates.
Cumulative Update for Windows Media Center for Windows Vista
Cumulative Update for Windows Media Center for Windows Vista for x64-based Systems
Hotfix replacement information
This is a cumulative update. This update replaces the following updates: