What do you mean you can’t shut it off from Task Manager? If it is there, it can be shut off, right?
Anyway, have you tried to identify the source from Services Utility? It can be accessed through Control Panel >> Administrative Tools >> Services. If that does not help, let me know. You will need more muscles to do the job. ;D
‘Duty’ seems like a word that have links to obligation. I am in no way related to Comodo officially, just so that you know. I just a regular user like you, with too much time to spend. I just don’t want you to get the idea that I work for Comodo, though I hope to be be part of their team sometimes.
Anyway, I might have misinterpreted your statement, as it can always happen in the Internet. If I do, please, just ignore this post. ;D