YCC Trainer is a Social & Communication software developed by Yahoo Coder's Cookbook. After our trial and test, the software is proved to be official, secure and free. Here is the official description for YCC Trainer:
Edit by Brothersoft: YCC Trainer is a program that can be used to better understand how the Yahoo! Messenger protocol works. The Intention is to teach through example and source code. YCC Trainer is designed to teach the logic needed to make your own Yahoo! Messenger client. YCC Trainer is geared towards programmers with little to moderate experience and an understanding of the .NET languages. you can free download YCC Trainer 1.1 now.