Directx 90c Extra Files X86 X64
dir C:\Windows\System32\d3dx9*.dll
Sometimes, after installing the files, you still get a . This means your architecture is mixed up.
DirectX 9.0c was not a singular static release but a standard that evolved over several years. The most significant iteration for modern relevance is the redistribution package often dated around August 2006 and later. This period marked a pivotal transition in PC hardware: the shift from 32-bit (x86) computing to 64-bit (x64) consumer computing.