If you have US\EU or KOR client and you want to play in China,you need to do some things:
1. First,you need to have this file.
2.Copy this file in the folder with the game and unpack.
3.Then, you need to create at the desktop PlayNCLauncher.exe(it was just unpacked)
4.Next,in the properties of PlayNCLauncher.exe you need to add in the end of line "Object" the following    
inscription:
/GameID:PlayNCLauncher /StartGameID:AION /LUpdateAddr:nprotect.aion.sdo.com/locallist /BannerUrl:Http://nprotect.aion.sdo.com/Launcher/LeftMain/LeftMain.html
For example:
Before:           "D:\Program Files\aion\УАєгЦ®Лю\PlayNCLauncher.exe"
After:            "D:\Program Files\aion\УАєгЦ®Лю\PlayNCLauncher.exe" /GameID:PlayNCLauncher /StartGameID:AION /LUpdateAddr:nprotect.aion.sdo.com/locallist /BannerUrl:Http://nprotect.aion.sdo.com/Launcher/LeftMain/LeftMain.html
5.Double-click on the .exe.
6.Good luck
ATTENTION!!! In the expamle, I wrote my way
P.S. Adrenalin,thanks for guide