From LastBit Software:
Yahoo Messenger Password is a password recovery tool (although not a password cracker) that is used to recover lost or forgotten passwords for your Yahoo messenger accounts. It is important that the password you are trying to recover is stored on your computer (i.e. you are recovering your own password and not trying to crack someone else's passwords). Yahoo Messenger Password recovers stored login information for the current computer user. The program is simple to use, just launch it, make a few mouse clicks and you will get all information about your Yahoo Messenger account including password.