Re: 'Program Files\Bonjour' Folder
From what I can find online it may be part of a Trojan DL program. I suggest you follow the instructions for cleaning your PC found in the sticky Spyware, Trojans and Viruses at the top of the forum.
You could start out by running Hijack This (link in the above mentioned sticky) and posting the results here.
EDIT: And yes it could also be part of an Apple program, but I have found reference to it in association with some Trojan DL programs. Better safe than sorry I would still run Hijack This.
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