• 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

New Y! Messenger 11

• Make free PC-to-PC calls and PC-to-phone calls for as low as 1¢ a minute
• Send text messages (SMS) to friends’ mobile phones for free*
• Instant message with one friend, or conference in a bunch!
• Show your style with Avatars, emoticons, audibles and IMVironments
• Easily find or invite friends from other services to come chat with you
• Use the built-in media player to watch web videos & view photos with friends
• Now you can chat with high quality full-screen video.
• Plus free voicemail!

Download Yahoo Messenger 11 – [ online install ]

Yahoo Messenger 11 – Direct Link – [ ymsgr11us.exe ]

New Messenger 10 Futures:

• Enhanced video calling
  Feel like you’re there with high-quality, full screen video and voice calling
• Keep up with what your friends are doing
  See your friends’ latest updates from Yahoo!, Flickr, Twitter and more with the new “Updates” view
• Improved language support
  Change your preferred language in Yahoo! Messenger with just a few clicks
• IMVironments Gallery
  IMVironments (“IMVs”) are interactive backgrounds that you can add to your IM conversations. To try out an IMV from the gallery, be sure you are signed into Yahoo! Messenger for Windows

Download Yahoo Messenger 10 (direct link)

==> http://download.yahoo.com/dl/msgr10/us/ymsgr10us.exe

Download Yahoo Messenger 10 (online install)

==> http://rd.software.yahoo.com/msgr/10/msgr10us.exe

Yahoo Messenger 10 Home page (short link)

==> http://messenger.yahoo.com/

About Yahoo Messenger ver. 9

• Instant message with friends on Yahoo!, or MSN (Windows Live Messenger)
• Make free PC-to-PC calls and PC-to-phone calls for as low as 1cent a minute (plus free voicemail!)
• Instant message with one friend, or conference in a bunch
• Easily add emoticons & links to your status messages
• Send text messages (SMS) to friends’ mobile phones for free
• Show your style Avatars, audibles & IMVironments
• Join a chat room to meet new friends while you discuss your favorite topics
• Use the built-in media player to share web videos & view photos with your friends
• Share securely with automatic scanning for users of NAV (Norton AntiVirus) or Internet Security

Download Yahoo Messenger 9: (direct link)

==> http://download.yahoo.com/dl/msgr9/us/ymsgr9us.exe

Yahoo Messenger Home Page: (short link)

==> http://messenger.yahoo.com/win/