Be aware of a site called MSNSTATUS.net which allows you to check who blocked you on MSN / Windows Live Messenger.

I'm not sure if the block check is working. However, by inputting your login details on the site, you are giving them the right to access your account and use all the contact information.

I'm receiving a lot of spam from a friend who tried msnstatus. You maybe blocked by your contacts due to this “MSN blocked check”.

So, please read the terms and conditions carefully before you use the service or you will fall into this SCAM.