Multiple Login in Yahoo Messenger

Do you know this we can MULTIPLE LOGIN IN YAHOO MESSENGER in same PC ..??is it is possible ...the answer in my blog is YES..!!How can we do it..??wheather any software is need to do..??NO not for me it is for those who don't know anything about"REGISTRY EDITING"Then how can we do ...follow the 5 simple steps as shown belowthinking .. don't think more it is easy start reading steps1. Go to Start -