Injecting a dll with d3d menu.

[univex]

Hello, im kinda new to c++, I can work pretty well in C#, but I want to start with C++ and its dll injection. I can inject dll without any problems.. but when I try to inject any dll with menu, i mean with d3 endscene hook, the game crashes and from injector I get error with: Unable to load dependent module "d3dx9.dll"

So I've googled for it, I downloaded the lib, put it in System32, and still, got the same error. Can you please, help me? I tried few menus from internet, don't have enough experience to create my own, so I looked for some classes or templates. I made hack for css, but controling it with hotkeys only is pretty.. you know. Any advice is welcome, thanks.

Also I had some difficulties installing DX SDK, installation exited with some error code, but all data were installed I hope.