I had been receving the netflix C00D11B1 error, and had contacted netflix, to be told there was no fix. I decided not to wait for another ‘can’t fix’ email. I found this tip, it worked, and was something the paid help @ netflix didn’t know about.

8. Open the Documents and Settings folder
9. Open the All Users folder
10. Right-click the DRM folder and select rename
11. Enter a new name for the folder (i.e. Old_DRM)
12. Restart Computer

Searching netflix for:  C00D11B1 yields no results. Google gave me plenty.
Nice job netflix, and by the way, I think trained  fleas could have done a better job.

Best way to avoid making mistake like that again? Try writing it down in the knowledge base so the next folks get it right.