If nothing works, especially for discontinued MMOs like Ran Online , the only reliable method is virtualization.
Now that we've covered the causes, let's move on to the solutions. Follow these step-by-step guides to fix the D3D9 application error: how to fix d3d9 application error ran online
When launched, the wizard performs a sequential sweep of the three most common causes of D3D9 errors in RAN Online and applies the necessary fixes automatically: If nothing works, especially for discontinued MMOs like