Windows Live Messenger is Microsoft's answer to instant messaging. While largely the same as its predecessor, Windows Live Messenger is unique for allowing you to share folders and files locally with fellow users. It also serves up the usual animated emoticons, winks, and buzzes, along with multiplayer gaming, free PC-to-PC calling, mobile phone messaging, and video chatting. Plus it adds VoIP capabilities that let you call telephones around the world for a fee. Its one major omission, though, is it lacks the capability to receive inbound calls from landlines or cell phones.