Can I disable Windows Event Logging for a certain service?

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http://serverfault.com – We have a legacy application running on a Windows Server 2008 VM from Azure that is spamming our windows event log every minute or so. I do not have access to the source for the bit of code that is writing to the event log, only the dll file. I cannot rewrite it either as it's a massive piece of software, as much as I'd like to. So my question is... Is there anyway for me to block the event source for certain messages? Obviously, I don't want to block the whole event source from logging as it does log helpful stuff when it goes wrong, it's just this one particular message is clogging up our s (HowTos)