Cllick “Finish” and you will run YY this sofeware.IF you’re first time to use this sofeware ,than you should login an ID to login it,so you should click this:图片如下：Click it and you will have a IE window like this:图片如下：You just need to type what you should type in this window,after you finish ,click “accept the agreement”Than you got a window like this ,it means you have had an YY ID successfully:图片如下：than enter your ID or E-Mail in this interface(don’t forget enter your cold)图片如下：Than login it ,you will got this :图片如下：Last step ,we just need to type out our Z-Class channel’s ID and enter it,than you’re in our class channel!图片如下：OK,that’s all,I wish it can help you,enjoy our class!