This is the link to the file: http://forums.macrumors.com/attachment.php?attachmentid=317147&d=1324647356
I've checked it and I can download it.
Anyway, if you don't trust this file, it seems that the problem has something to do with the bonjour service. You can activate it following what fishacura said on this post:
The file I used activates the bonjour service as well.
Hope it works for you too.