That's a new one. There's also or was one site that listed some 30 IE error codes for analysis. I had the link at one time and lost it between system changes.
On one log it listed gamespot as one. You just have to know what is from a valid installation and which ones are "unknowns". Usually you can tell by the surrounding values if something is valid. A valid software will make several entries in the software branches of the registry. When it says R3 no name xxxx no name \system32\gotya.dll you know it is suspect.