Announced since the beginning of 2007, Yahoo! Messenger for Windows Vista was launched in version “preview” only at the beginning of December of the same year.
It seemed to be a revolutionary, totally different version Graphic interface (skins) with everything that had been released until then. At that time it was “to power” Yahoo! Messenger 8, again Yahoo! Messenger 12 (this was the version number for Y!Messenger Windows Vista), it was to be dedicated to computers with Windows Vista operating systems, and later compatible with Windows 7. Even though it was a version with many shortcomings and consumed a lot of system resources (RAM and CPU memory), Design care “take your eyes” they made many people use it with pleasure. The new line of emoticons, smiley-uri animate in chat, ordering list of IDs, skinthe and the avatars, was a “refresh” welcome to Yahoo! Messenger.
Although the interest of the users was quite high and everyone was waiting for the release of a final version of this version, approximately 10 months after the release of the preview version, Yahoo! decided to stop development for Yahoo! Messenger 12 for Windows Vista, and the application was removed from download from the official website.
If at that time you were not interested in this version on Yahoo! Messenger for Windows Vista / Windows 7, you can test it now. We tested Yahoo! Messenger 12, both on Windows Vista as well as on Windows 7, and it seems to run very well even though the application has been withdrawn for more than two years.
Download Yahoo! Messenger for Windows 7

Download Yahoo! Messenger 12 for Windows 7 / Vista.
{filelink=23}
This version is “off line installer“, which means you don't need to be connected to Internet to install it.
Stealth Settings – Download Yahoo! Messenger for Windows 7 and Windows Vista (AERO).