this program was developed by micrsoft in the late 90s. it wasn't really a big hit to begin with. ICQ, AOL and yahoo still had dominated the chat-to-chat program wars. microsoft began to incorporate msn messenger into it's operating system, forcing its consumers to use this program and to sign with a "passport" to login. this "passport" could be used for other msn features such hotmail, etc. msn messenger is used worldwide by people of all ages, not just teenagers as has been previously described here. although it's most common users are young adults or college students. the worst thing about msn messenger is that you don't have to type properly on it whatsoever. people on msn will often shorten words and not even use proper sentences. a very common thing to do on msn is adding the internet word "lol" at the beginning or end of any statement. it has become very annoying. this issue has even sparked some issue in high school essays.
msn messenger was developed by microsoft. it is the now one of the most popular chatting clients on the internet today rivaly with AOL and Yahoo continue. Msn messenger has very frequent downtimes. Is this due to hackers? Possibly. Most of the time they are for security updates.