Meek integrated, save configuration files, user-friendly.
Recommend to upgrade!
Pick the Installer with the .Net Framework you have. If you have no idea about it, follow the following suggestions:
For users with Windows Vista or lower, use
arkcclient.v0.2.1.dotnet3_5.exe
For users with Windows 7 or later, use
arkcclient.v0.2.1.dotnet4_0.exe