Yahoo messenger 10 ( Official version but released secrectly ) Famous as Leaked Version 10.  This is the Original Yahoo Messenger Version 10. Its for XP, Vista and Win7. This software is Offline Setup file – You dont even need to be connected to the internet to install this one. The new things here is they comes with new updates such as multilanguage before login into the account. After login, you can click on updates and see the latest updates of your friends.