Missing TypeLib Reference
IBackupLocationsShellFolderImpl - {00020424-0000-0000-C000-000000000046}
The TypeLib referenced at: Interface\{F0E3A5D7-80C7-4228-90FE-61DF01C417A5} could not be located.
These references are often left behind after uninstalling software.
Solution: Delete the registry key.
I was running into this with CCleaner today, and found this message board by typing FOE3A5(etc) in Dogpile search.
This only happened after I reinstalled Norton Security Suite. I'd been running CCleaner every time I installed or uninstalled various software (Avira, Zone Alarm, AdAware...