start -> run -> type 'cmd' to bring up a command prompt
type 'sc stop "Bonjour Service"' (include the double quotes but not the single ones!)
type 'sc delete "Bonjour Service"'
Then go to the Bonjour folder and delete the .exe. There is also a dll that cannot be deleted. Change the name of the dll and reboot, and then delete it. AFter that, you need to run a free downloadable program called lspfix, because Bonjour fouls yet something else up that I don't completely understand, but the fix does, in fact, work. You may need Admin rights to do this; I'm not sure. BTW, deleting Bonjour has had no negative impact on my Adobe or ITunes apps that I have been able to discern; which raises yet MORE questions about why it is required in the first place.
Good luck and Just Say No to Bonjour.
John