How to Fix Client Issues

If you're experiencing issues with the game client, follow these instructions to resolve them quickly.

Step 1: Add the 9Dclassic folder to Windows Security/Antivirus Exclusions

Sometimes, antivirus software or Windows Security may mistakenly flag the game files as harmful. This is a false positive, and you can safely resolve this by adding the game folder to the exclusions (or exceptions) list in your security settings.

Windows 10/11 Users: Watch this video guide to learn how to add exclusions in Windows Defender.

Windows 7 Users: Watch this video guide to learn how to add exclusions.

Step 2: Fix Error Code 0x000000000042

If you encounter the error code 0x000000000042, you need to add ninedragons.exe (the game’s executable file) to your Data Execution Prevention (DEP) settings. Follow these steps:

1. Open the Control Panel and switch the view to Large Icons.
2. Go to System > Advanced System Settings.
3. Under the Advanced tab, click on Performance > Settings.
4. Select the Data Execution Prevention (DEP) tab and choose: "Turn on DEP for all programs and services except those I select".
5. Click Add, then locate and add NineDragons.exe from your game installation folder.

Step 3: Resolve Missing DLL Files

If you receive errors about missing MSVCP140.dll or VCRUNTIME140.dll, it means your system is missing important Visual C++ components. To fix this, download and install the Visual C++ Redistributable Package.