If you have tried the program A-Patch for Windows Live Messenger, then you are probably looking for something similar for Yahoo Messenger.

Presto Transfer Yahoo Messenger helps transfer your Yahoo Messenger message and chat archives from one computer to another.

If you are worried about the type of conversations your children have via Yahoo Messenger or you simply want to control what type of conversations your employees have better, you need IMMonitor Yahoo Messenger Spy 2.2.8.

Highly encrypted instant messaging. Import your MSN, AIM, Yahoo, and ICQ buddy lists all into one piece of software and protect your privacy.

SpyPal Yahoo! Messenger Spy software can secretly Secretly record all Yahoo! Messenger's incoming and outgoing chat text messages. You can check all recorded messages by simply receiving emails or opening a web page.

Yahoo Friends is a small program to make your Yahoo Messenger more fun than ever. It adds a large number of smileys and images, gives your messages a personality of their own and will delight your friends.

Yahoo! Messenger Monitor Sniffer 3.2 is an interesting control, security and vigilance tool. It captures and saves all conversations had on Yahoo! Messenger on a PC or set LAN, and it even lets you see the conversation being had, in real time.

Yahoo Password Recovery instantly recovers the stored or saved password to the Yahoo Messenger/Pager account on your local computer. Compatible with all versions of MSN Messenger on Windows 95/98/ME/NT/2000/2003/XP.

Zango Easy Messenger is a FREE instant messenger designed to support AIM, Yahoo, MSN protocols from one simple IM. No need to setup several applications anymore - chat with your friends who use different Instant Messengers with ease!

Invisible messenger spy software that records all Yahoo! Messenger incoming and outgoing chat text. Send reports to your custom email address or ftp. Use your hotkey to activate it from complete stealth mode and protect programaccess by password.