I'm using the wireless networking adapter that is running off the signal of my roommate's computer in his room. Now my PC in mine runs of his as well. My XBox is in the living room. Now I was curious if I were to use the media center, could I use it on my computer to be able to share files to my 360? Or does it have to be off my roommate's computer since he has the router? Any help would be much appreciated.