The MSKB articles listed here:
http://www.google.com/search?sourceid=navclient&ie=UTF-8&oe=UTF-8&q=setnote%2Ecpl
asks you to rename the file.
"An error occurred while windows was working with the Control Panel C:\windows\system32\setnote.cpl:
What does this mean???

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic