Disabling ads in Windows Live Messenger

By adding this line

127.0.0.1 rad.msn.com

to C:\windows\system32\drivers\etc\hosts, Windows Live Messenger just show a nice image instead of various ads (after being restarted). A one-liner for cmd.exe:

echo 127.0.0.1 rad.msn.com >> C:\windows\system32\drivers\etc\hosts