A while ago, I noticed a handle leak in Apple's "Bonjour Service" (yeah, that sounds like something I want running on my system...) - mDNSResponder.exe. I knew right away that that was the executable for the "Bonjour Service" because the name is so helpful. (Joking. Even if it was named after the service, how the heck would I even guess what the "Bonjour Service" did. But I digress...)

The service description is:

Bonjour allows applications like iTunes and Safari to advertise and discover services on the local network. Having Bonjour running enables you to connect to hardware devices like Apple TV and software services like iTunes sharing and AirTunes. If you disable Bonjour, any network service that explicitly depends on it will fail to start.

I put up with the leak for a while, from time to time stopping the service when I thought of it after booting. Most of the time I didn't think of it and the leak did not appear to be having any kind of performance impact on my system (I never saw it get above 80,000 handles). An update (or two?) later, I thought it would