Most modern games come with a "redistributable" folder included in their installation directory. This folder contains the exact DirectX version the game needs.
download individual DLL files from third-party "DLL fixer" sites. These files are often outdated, bundled with malware, or incompatible with your system architecture. d3dx9 46dll file verified download
: Run sfc /scannow in an Administrator Command Prompt to repair corrupted Windows system files. Most modern games come with a "redistributable" folder