Instructions
Visit the Dragon Flyff website located at DragonFlyff.com. Click on the Enter button. While the website will have images and text written in the Thai language, there are English instructions. If needed, translations are available if using Google's Chrome and allowing the browser to translate the page.
Register at the Dragon Flyff website. There are areas for entering a username, password, email address and a simple security math question to answer. You will need to confirm your email address in order to complete registration. The email will be in Thai and English.
Once registered, download the software using the download link. Installation may take several hours depending on download speed.
Click install to allow the game to install. Some instructions may be in Thai with English translation available.
Once the game has been installed, click on the icon after installation. Instructions may be in Thai and English, but the game should operate similar to the gPotato English servers.