Do you have problems installing the yahoo messenger online? Have you been looking for a offline standalone installer.
The beta version launches the Yahoo! Suite installer which entices users to install Yahoo toolbar, set Yahoo! as homepage, Quick Launch bar shortcut, Yahoo! Browser Services etc. You can skip all these by downloading yahoo messenger directly from official links.
Download Yahoo Messenger 18.104.22.1681 Setup file
Download Yahoo Messenger beta 22.214.171.1242 Setup File for Vista
Download Yahoo Messenger for Macintosh OS version
Tip : While installing Yahoo Messenger from the suite, you can save the actual setup file by copying the setup file from ‘%programfiles%\Yahoo!\Installs‘.
Enter ‘%programfiles%\Yahoo!\Installs’ in Run dialog box to go that folder.
Yahoo Messenger on Web here