Update: Windows Live Messenger is a discontinued product and has been replaced with Skype.
Windows Live Messenger (previously MSN Messenger) is a groovy way to communicate with your friends online, but the advertisements are really annoying and often inappropriate. Thankfully Microsoft routes all of the ads on messenger through one unique address, all we have to do is block it and those ads will be gone for good.
In Windows 7, Browse to the following system folder:
Open the file called hosts. Windows won’t know what program to use so it will ask you to select one from a list. Select Notepad and Click OK.
In the hosts file, Scroll down to the bottom. In the first blank line Type in the following:
After you’ve typed that in, Save the file and exit.
Now your ads should be removed from Windows Live Messenger. If for some reason they are still showing up, it is because your computer hasn’t picked up the changes yet. You can try restarting, or just flush your DNS, it should then be ready and ad-free!