Tools claiming to be able to freeze Windows Live ID accounts, preventing access to Hotmail, Messenger, and other MSN/Windows Live services, usually carry a virus or trojan with them. In the cases I’ve seen, targeted accounts do get temporarily frozen, but the person doing the freezing will get unknowingly infected.
One such program gaining a bit of exposure recently (although over 3 years sold) is IceCold ReLoaded, as seen here:

Do not trust hack tools like this, while some may do what they say, it can be a cover to do something else behind your back.

A new virus labelled a variant of the Win32/Spy.VB.LO trojan by NOD32 has been spreading via Windows Live Messenger over the past couple of weeks, one of the messages it typically sends contains the recipients e-mail address, looking something like this:
» rofl @ you, http://improfile.net/members.php?msn=example@example.com
The Web site has been shutdown to stop it from spreading. The DNS is set to loopback (127.0.0.1) and “Closed for Fraud” is in the whois information.
Kelvin has created a tool called impFix to remove the virus, so give it a try if you believe to be infected with this pest.