Failed to get user liveid of WP7

I did not find this stuff after I flipped through msdn, and then I found it again.

 
Userextendedproperties. getvalue ("Anid") // Obtain the anonymous user ID of this device
 

This is the liveid !!!! However, when Microsoft gave you a little bit of processing, it turned the email address into a nasty string ~~~

String Structure: A = 7f8cc87w7f66665dcd6f8dffffffff & E = c6d & W = 1

7f8cc87w7f66665dcd6f8dffffffff is the unique ID. As long as it is the same liveid, it must be the same. As for the subsequent e = c6d and W = 1, I don't know what these two values are. Who knows if they want to share them or send this email back?