o0xIBrUnKhOrST
Getting There
Paste this into your browser
Replace the ***GAMERTAG***'s with the recipient you'd like.
Code:
http://live.xbox.com/en-US/profile/MessageCenter/SendMessage.aspx?ru=%252fen-US%252fprofile%252fprofile.aspx%253fpp%253d0%2526GamerTag%253d***GAMERTAG***>=***GAMERTAG***