Free Download Yahoo! Messenger 11.5 Online Installer: from YAHOO Official Site => http://rd.software.yahoo.com/msgr/11/msgr11us.exe Note: When prompted, save the file to your desktop & double click the Yahoo! Messenger 11.5 file on your desktop to start installation. OFF-Line Installer: from YAHOO Official Site => http://xh.yimg.com/…ymsgr1150_0152_us.exe