See who blocked you on MSN messenger

There is an easy way to see if someone blocked you on msn messenger:
You create a new msn passport and you log on to messenger with it. Then you 'Send an instant message' to the person you want to check. Don't type anything in the chatbox. You can see their status without them to know it.

Now are my questions: how can I log on to messenger with vb without having to log of with my normal account (the one I always use). And the second is: how do I send instant messages from vb, without sending something but that I can see the status of the one I am sending to.
Maybe somebody already has a project using this trick. And maybe he/she is so friendly to share it with us... :)

thx a lot fox,
Moperke

I'd suggest writing a bare bones Messenger client. The logon procedure is quite complicated, but I found some web resources the other day, I'll see if I can dig them up.
...
http://www.venkydude.com/articles/msn.htm
http://www.hypothetic.org/docs/msn/index.php
are just a couple.

thx, I'll check them out.