I know I hate Bonjour service, and it has a nasty tendency to mess up Windows 7 for all of us that use iTunes. I personally find it a PITA to remove post install, so I thought that a tutorial for installation without it (or mobile device support as well) would be nice.
The first step is to get ahold of winrar or 7zip 7-Zip
With this, you can now download the iTunes setup from Apple.
After you download "iTunesSetup" or "iTunes64Setup", whichever your machine requires, right click on the .exe file and extract the files using either program mentioned above.
Delete Bonjour and or Mobile Device Support. I also deleted the update file to ensure that iTunes does not get updated without my express consent (download and install) as bonjour will get installed with all updates, since Apple is a bunch of butt-heads who think we want extra ports and all that crapola.
Also, disable automatic updates in the installer.
Run "iTunes.msi" or "iTunes64.msi"
As you can see, the installation was totally Bonjour free. Enjoy.