A game shipping with d3dx3_30.dll did so because:
If you are trying to run any of these games on Windows 10 or Windows 11, you are highly likely to encounter errors related to d3dx3_30.dll .
Before running the repair, check the option to —this ensures that related dependencies are also fixed.
If you suspect your system files are corrupted, you can use Windows' built-in tools. Type cmd in the Windows search bar. Right-click and select Run as Administrator . Type sfc /scannow and press Enter. A Critical Warning: Avoid "DLL Download" Sites d3dx3 30.dll.
"The program can't start because d3dx9_30.dll is missing from your computer". "d3dx9_30.dll Not Found".
Understanding d3dx9_30.dll: How to Fix Missing DLL Errors in Windows
"This application failed to start because d3dx9_30.dll was not found." A game shipping with d3dx3_30
If the issue persists, open the administrative Command Prompt again and run the DISM tool: DISM /Online /Cleanup-Image /RestoreHealth Method 5: Restore the File from the Recycle Bin
Once downloaded, copy the file to:
Entry Point Not Found – D3DXCreateEffect (in d3dx3_30.dll) Type cmd in the Windows search bar
Windows 10 and Windows 11 come pre-installed with DirectX 11 and DirectX 12. While these newer versions are powerful, they do not inherently include all the legacy library files from DirectX 9.
| 优先级 | 修复方案 | 操作步骤简述 | | :--- | :--- | :--- | | ⭐⭐⭐⭐⭐ (首选) | | ①下载并运行 DirectX修复工具（DirectX Repair） ；②在主界面点击“ 检测并修复 ”按钮；③等待工具自动完成扫描与修复即可。 | | ⭐⭐⭐⭐ (官方推荐) | 安装DirectX官方运行库 | ①访问微软官网下载“ DirectX End-User Runtime Web 安装程序 ”；②运行安装程序，接受协议并按提示完成安装。 | | ⭐⭐⭐ (内置工具) | 运行系统文件检查器(SFC) | ①以 管理员身份 打开命令提示符；②输入 sfc /scannow 并回车；③等待扫描完成并重启电脑。 | | ⭐⭐ (最后手段) | 手动下载并注册该DLL文件 | ①从 可信源 下载 d3dx9_30.dll 文件；②复制到 C:\Windows\System32 目录下；③在命令提示符中输入 regsvr32 d3dx9_30.dll 进行注册。 |
Thus, d3dx3_30 is , extremely rare today.
"This application failed to start because d3dx9_30.dll was not found. Re-installing the application may fix this problem." "Cannot find d3dx9_30.dll. Please re-install." Why is the d3dx9_30.dll Error Happening?