After downloading the file, you'll need to install it:
Some users have reported that installing the Microsoft Visual C++ Redistributable Package also resolves the D3dx9-30.dll error. You can try installing this package as an alternative solution: Download D3dx9-30.dll Resident Evil 4 -2021-
Never trust a single DLL download from a pop-up website. Always use Microsoft’s official installer for safety. After downloading the file, you'll need to install
If the above steps do not resolve the issue, try the following: After downloading the file