The yahoolib.dll error message comes from Y!TunnelPro 2.5 – The Yahoo! Messenger Companion program. Yahoo! Messenger is part of Digital Asphyxia. Just in case you are unaware of what Yahoo! Messenger does for you, it is a messenger system just like the name suggests. It has chat room features, multi-messenger features, voice features, enhanced privacy, ignore features, enhanced fonts, enhanced filtering, and a whole bunch of other stuff.
If you have the yahoolib.dll error message and don’t use Yahoo! Messenger, then you have a problem on your computer. However, if you have Yahoo! Messenger, then what you are dealing with is a common registry error. Fixing registry errors is as simple as clicking the button below. ZookaWare PC Cleaner will take care of the rest. ZookaWare PC Cleaner resolves 100% of registry related errors on your computer.