A few years ago, I tried to remote into my sister's box using the built-in Windows (Vista) remote desktop/support feature. I had her enable/allow the proper exceptions in Windows Firewall, create a password protected invitation then email it to me, but it didn't work. Both of us were behind NAT/routers, so I had her direct connect (wired) into the cable modem, completely disable Windows Firewall, reset everything and then send me another invitation. I also bypassed my wifi router and just plugged into my cable modem. Still didn't work! It complained about client address/computer not found. A friend is having some issues in another state and they have tried every tip I sent them, so I wanted to try another remote desktop/support effort. They have Vista 64 through DSL, I haven't tried it yet but was wondering WTH do I need to make this happen using the in-built Windows remote admin/desktop feature?