Messenger has moved to Skype
Messenger was retired in April 2013 and is no longer available or supported on most Mac and Windows operating systems. *
You can continue to make audio and video calls with your contacts on Skype and Facebook and send IMs for free—your contacts will come with you when you update to Skype and sign in with your Microsoft account.
Find out more about Skype
For information about moving from Messenger to Skype, visit the About Skype page.
To learn about instant messaging with Skype on your Windows desktop, visit the Skype instant messaging page.
To find out how to call your contacts with Skype on your Windows desktop, visit the Skype–to–Skype calling page.
I am disappointed by this. Microsoft has abandoned millions of customers worldwide in favor of their newly acquired toy, Skype. They flaunt it as a merger but the merging process is reported widespread to be faulty and does not transition your contact. They also have not yet adopted a single feature from Windows Live Messenger.
Even worse, the entire purpose of people using WLM for all of these years is that they've been able to avoid the tedious lack-of-features presented on AIM, but they've avoided Skype because Skype is pretty much just a video-calling messenger. That's all good and fine, but I don't want to look at/speak to every single person I engage, and the actual instant messaging interface is horrible.
There is nothing used to decipher who is actually chatting besides the name above the first message in a group from that person. There is also a limited amount of window space where you can actually read what the person is saying.
For video calling, it is horrible because it further limits how much you can see text-wise if you're in the mood to see a loved one but not able to make a lot of noise. Not to mention, if you mute your mic and the other person mutes theirs, all you see is this massive microphone image in the middle of the screen with a red cross over it.
I used WLM because it was truly a superior messaging product to rivals AIM and Yahoo!. Google+/Talk are both decent but don't offer anything in the way of what WLM offered. I am refusing to upgrade/"merge" to Skype, and may just have to find another client completely. WLM has tried to fix what isn't broken, and what was actually preferred worldwide over every other instant messaging client for very good reasons.