It's a VB patch and it connects to internet to download a .ini file which contains hexadecimal offset for any versions of WLM.
Some viruses are using the same API to download other viruses but this one doesn't because it's not a virus...antivirus are idiots...
edit : .inis are
here. You can test it with Wine and Linux if you are scared
edit2 : Msncreative is on
the french page of msgplus.net . We don't like viruses