Windows Vista: 2 updates that boost the beast

An update is available that improves the performance and reliability of Windows Vista
http://support.microsoft.com/?scid=kb%3Ben-us%3B938979&x=24&y=15

An update is available that improves the compatibility and reliability of Windows Vista
http://support.microsoft.com/?scid=kb%3Ben-us%3B938194&x=9&y=15