I tried that and then I couldn't see anything on the network. I started the services again and HomeGroup Listener failed to start. This could be the problem, I'm looking into it more.
I'm trying to setup file sharing between a Windows 7 and Vista. In Windows 7 I go to Network and Sharing Center > Advanced Sharing Settings and check Turn on Network Discovery and Turn on File and Printer Sharing, however whenever I click save settings it doesn't apply. I go back to Advanced...