tictac

hi! ive been useing CCleaner for a while now an its been gooing well untill now.. it want remove Missing TypeLib Reference IOutlookPlug - {4A3451BE-99E0-476C-AE7F-C2A5671AC22E} HKCR\Interface\{A9CC9305-0A30-4015-92A0-0711EE24E720} it keeps cumming up when i do a scan of my registry an i dont know what it is... its happen when i installed norton internet security 2009 so is there someone that can help me on this one pls?