This is exactly what it says.
The program can't start because d3dx9_43.dll is missing from your computer. Try reinstalling the program to fix this problem."
And then this;
OGRE EXCEPTION(7:InternalErrorException): Could not load dynamic library .\RenderSystem_Direct3D9. System Error: The specified module could not be found.
in DynLib::load at
C:\kito\git\sources\dependencies\ogre_src_v1-7-4\OgreMain\src\OgreDynLib.cpp (line 91)
I tried reinstalling last moon, but it didn't work. I also tried installing those two helpful links, and they didn't do anything.