MSN Messenger is a royal pain in the butt. Its cool when ya wanna use it but it assumes you ALWAYS wanna use it and automatically starts up. Have you ever tried to remove it from start up?? Ya have to trick it Ctrl+Alt+Del, end task, and quickly go the install folder ad rename it before it starts up again. HORRIBLE! But all that aside its a pretty cool program :) It , like AOL, wont allow you to communicate with another companies' IM programs but it does have cool side features like webcams, and file share but these functions are becoming standard.