If you have errors like d3dx9_43.dll or xinput1_3.dll , you need the DirectX End-User Runtime.

: This is the most common package for recent software.

: Required for many mid-2010s applications.

Fixing missing DLL files in Windows 7 by "downloading all of them" is usually a bad idea. Sites offering bulk DLL downloads are often risky and may contain outdated files or malware.