psx problem

I downloaded psx and when I try to open it, I get a message that says: "This application has failed to start because d3dx9_26.dll was not found. Re-installing the application may fix this problem." I've reinstalled it several times but it keeps saying that.

reinstall directX

Or you could go here:http://www.dll-files.com/dllindex/dll-files.shtml?d3dx9_26Download that and put it in your PSX emulator directory.