dis

i've just tried to windowsupdate msxml6-KB933579-enu-x86.exe and get an installation error i booted and tried to login to live messenger and suddenly get a windows installer error i am most certainly not running in safe mode the last update before the failure was security update for xml core services msxml4-KB936181-enu.exe everything else was working fine until this my installer version is 3.1 what do i need to do to correct this