Cllick “Finish” and you will run YY this sofeware.
IF you use this sofeware first time ,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 password)
图片如下:

Than login it ,you will got this :
图片如下:

The 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!