Answer: Install it inside your RO Folder ( usually C:\Program Files\Gravity\RO ) and wait for it to finish. After that be sure to run the aeRO Patcher and kRO Patcher to ensure you have the latest files and prevent some RO Crashes.

Answer: Wait for the installation to finish. At the end of installation, it should automatically run the aeRO Patcher. Wait for this to finish. Click START GAME to launch the game. That's it! You're ready to enter the world of aeRO Ragnarok Online. Enjoy!

Solution 1: Unable to update the client due to restriction access.

Run your "Play aeRO" with administrator access.

Solution 1: Install the latest mini installer.

All old installers have been discontinued and will no longer get our latest patch.

Solution 1: Unable to continue with the patch because your aeRO.exe is in used.

Make sure to close your aeRO.exe client when you open the aeRO Patcher.

Solution 1: You installed the mini aeRO installer in the wrong directory. The mini install is not a standalone installer, it requires the aeRO Full Installer or existing RO to run.

So make sure that you install the aeRO Mini installer in the same directory where your Ragnarok or aeRO Full installer was installed.

Solution 1: Check if you have an anti-virus installed on your computer. Add the files that are required to run aeRO to the whitelist(This can be different anti-virus program).
If you have no idea about whitelisting an app, just remove your anti-virus or anti-malware and reinstall your aeRO Mini Installer.

Why do you need to remove the anti-virus? simply because your antivirus is falsely detecting aeRO.exe to be harmful software. What it does is that the client has an anti-cheat program that stops users from cheating.

Solution 1: 1. Download and install the latest Mini Installer on the same directory of your aeRO Folder.

Solution 1: 1. Right click your setup.exe and choose "Troubleshoot Compatibility".
2. Choose "Troubleshoot program".
3. Choose "The program worked in earlier versions of Windows but won't install or run now.".
4. Choose Windows XP(Service Pack 3).
Now try to run the setup.exe and see if you can select the resolution now.

Answer: Download aeRO Mini Client Installer only if you already have a version of Sakray / kRO installed in your system.

Answer: Download aeRO Full Client installer if you do not have Sakray / kRO installed in your system. We recommended this type of installation if this is your first time installing a ragnarok private server. This installer contains all the files you need to play the game.

Answer: Not sure what to download? I would highly recommend to install the aeRO Full Client Installer. It contains all the files you need to play the game.

Solution 1: If the file you download gets corrupted or it suddenly stops, download the installer again or try use an application that offers Resume Download or use Download Manager Software.

Solution 1: Maybe your internet connection has likely experienced a temporary difficulties or our web host went offline. aeRO Full client is hosted in our own web host while the Mini Installer are hosted in Mediafire. So it may be necessary to download the aeRO Installer again. If this happened again, please e-mail us at aerogaming@ymail.com for support.

Solution 1: Your aeRO installer is corrupted. You need to download the aeRO Installer again or try using an application that offers Resume Download or use Download Manager Software.

Solution 1: Your aeRO installer is corrupted. You need to download the aeRO Installer again or try using an application that offers Resume Download or use Download Manager Software.

Solution 1: Your aeRO installer is corrupted. You need to download the aeRO Installer again or try using an application that offers Resume Download or use Download Manager Software. You may also check your antivirus and disable it for the meantime. After the installation you may enable them again.

Solution 1: This is likely a problem with the installation. Make sure to install the aero mini installer in the same directory of your Sakray / kRO installation Folder. You may also just install aeRO Full Client Installer(it comes with everything. You dont need any other files).

Solution 1: Install the aeRO mini installer to the same folder where you installed the aeRO Full Client ( Try not to install aeRO in Program Files if you're running Windows Vista / 7 OS).

Solution 1: Download gepard.dll directly from our site gepard.dll