I am connecting to the internet via my friends high speed connection. However I am using my Airport Express as a "wireless client" so that I can still print and use the wireless music (which believe it or not required no set up, just worked). So heres my question: I would like som etype of security. He's on windows, Im on mac. Can my security be as simple as me disabling "Windows File Sharing" and then he wont be able to see any of the files on my HD??