Files with our Updater (Thor Patcher) and protection (Gepard Shield) are packed through UPX archiver!
You can get false positives from your antivirus while installing the game client.
Please add the installer and the RO folder as an exception in your antivirus software, before the installation process.
Ragnarok Online Rage.Land - Full game client - Installation guide:
Run the EXE Installer with administrator privileges.
You should install game client in a NEW CLEAN folder, without another game clients. Please do not install the game in the system folders, Desktop and Program Files.
Press OK and wait for the installation of the game client