text: how to chat from my yahoo id to my friend on his msn messenger id? can a person having yahoo id chat with another person having id on msn or skype or gmail without having to get a yahoo id. can you tell me any multiple messenger software or site that helps me do this ? u can not log in to yahoo and chat with some one in msn because these are 2 diffrent server but there are some programs that u can login with yahoo msn aol and ... with each other but not chating with diffrent server