Cannot install itunes 9.2 - bonjour service failed to start

Question

Like in many of the other topics, i am unable to install itunes 9.2 on my computer.
I have checked (and edited if needed) exceptions in firewall etc. I have disabled said security as well. I have even uninstalled all AV.
I have tried the registry changes to grant the bonjour service full priviledges.
I have tried giving the bonjour service administrator rights in the service itself.
I have tried retrying at the error dialog extensively (although i did not put much hope into this one).
I have tried installing airport for windows, which temporarily seemed to get bonjour working, but again it died during itunes 9.2 installation with the same error.
Edit:
I have also (almost obvious) tried to uninstall and reinstall itunes/quicktime/bonjour many times, both in my standard startup setup as well as in msconfig'ed startups enabling only specifics to said programs.
Edit end
The exact error from the event viewer=>Windows Logs=>System is as follows:
The Bonjour Service service terminated with a service-specific error 6 (0x6).
Now, i would very much like this to be fixed as soon as possible (as i'm sure the rest of the users would as well), so i can actually use my iphone for music i already own, manage it and so on and so forth.
I have already spent more than 8 hours on this specific problem since yesterday, which is quite frankly ridiculous. Especially in the context of apple products, which in the past prided themself on being extremely stable and userfriendly unlike most other platforms. I do realize that this does not apply in the same sense regarding the crossover between platforms, but as far as i can tell this problem is an old injury attested by many people on many versions of itunes (and other software) in relation to bonjour.
Edit:
I am running 64bit (and ofcourse using the 64bit installers)
Message was edited by: Tomzster
Message was edited by: Tomzster

Answer 1

Update:
Well, i called my telecom company and spoke with the same guy i spoke with earlier. He found a technician, but unfortunately he had no ideas for a solution. Instead i was told to reformat.
Now, as i have quite a lot of stuff on my computer which i should back up but haven't yet, this is a very unappealing option to me. Also, from reading these forums there have been several examples of the installer failing in one way or the other even on fresh systems. And lastly, just because a piece of software works on one computer but not on another it doesn't mean i should reformat.
Now, if i had been told the error 6 (0x6) meant something i couldn't rectify without doing a complete reinstall, then i would probably have been ok with it. So that's what i told the supporter. He however had been told by his boss to tell me off with that.
So instead i asked to speak with his boss. We then spoke a little backwards and forwards about support responsibility, when it is ok to ask for a reformat and so on and so forth. I tried to tell him that it was clear to me that it wasn't really their responsibility (as it's a software problem unrelated to the iphone itself), but that it couldn't be my responsibility either to make that clear for apple.
So after a while i was put on hold for a good 10-20 minutes. After which he told me that he understood my situation and that he would talk to their chief of the supporting division (or something) as that guy is in charge of the contact with apple.
So all in all i didn't get any further, but i did get them to acknowledge the problem at hand and take it further towards a solution.
I'm guessing that the next step will be communication with apple regarding bonjour and either direct apple support, or feedback from apple about what the bonjour error actually means for a start.
Regardless, if i am not contacted mid next week, i will be calling and emailing them once more.