Right-click the file and choose , then click the Compatibility tab. Check the box for "Disable fullscreen optimizations" .
Before starting the game, open your Windows system tray (bottom right corner of your taskbar).
If the d3d9 error persists, it may be due to outdated graphics drivers or corrupt system files. 1. Update Graphics Drivers how to fix d3d9 application error ran online
This does not overwrite your current DirectX 12; it simply adds legacy support. After installation, navigate to C:\Windows\SysWOW64 (for 64-bit systems) and confirm d3d9.dll is present.
Specifically for , the game's official community channels have previously released patches to address "General Application Errors". Right-click the file and choose , then click
Some games have compatibility settings that force the wrong rendering path.
Provide instructions for specifically Suggest community patches for running older games If the d3d9 error persists, it may be
Alternatively, visit the official NVIDIA Driver Downloads page or AMD Drivers Page to clean-install the stable driver architecture suited to your hardware. 4. Adjust Compatibility and Fullscreen Optimisations
Help you locate specific log files to
: A simple restart can sometimes clear temporary glitches that cause DLL errors. Run as Administrator : Right-click the game's launcher and select Run as Administrator
The D3D9 Application Error in Ran Online is nearly always solved by and setting Windows 7 compatibility mode . If the issue persists, using DXVK (D3D9 to Vulkan) provides the most reliable fix on Windows 10/11.