Hey there,
Make sure your antivirus is disabled, firewall is permitting euroaion.exe launcher, ensure no VPN is running, and check that nothing else is blocking the launcher from downloading any files.
Furthermore, make sure you've got these three essentials installed:
1 - DirectX. You need the June 2008 version of this program, which you can find on the official website . After downloading, select any folder for the files to be unpacked into. Navigate to that folder, launch the .exe installer, and complete the DirectX installation if necessary. IMPORTANT! When you launch the file, it will prompt you for a path for unpacking the content. This only unpacks! Once unpacked, navigate to the specified folder, run the installation via DXSETUP.
2 - Microsoft Visual C++ Head over to this page to download and install the necessary components.
3 - Grab and install NET Framework. Please download it directly from this link to ensure the launcher functions correctly!
If you're looking for a fresh start with no technical hassles, I'm currently beta testing on Aion Riftshade, set to debut Q1 2026. It's got fantastic features like a MyAion-like DPS Meter and server-side anticheat, plus low ping and no ExitLag needed. Seriously worth the wait!
I just checked all of that and everything is okay, I restarted the launcher and it started downloading those 0.43 again