Build error due to missing Directx9 libs, need directx 9 libs?

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C++

Java

.NET

DirectX

.NET4.5

Hi, I have downloaded a open source game and want to modify it according to my need, It has following code in resource file:

// Main Include Headers.
#include <stdio.h>		// Required header for sprintf() & sprintf_s().

#define DIRECTINPUT_VERSION 0x0800

// Direct3D
#include <d3d9.h>
#include <d3dx9.h>
#include <dinput.h>

// The library files for Direct 3D9.
#pragma comment(lib, "d3d9.lib")
#pragma comment(lib, "d3dx9.lib")
#pragma comment (lib, "dxguid.lib")
#pragma comment (lib, "dinput8.lib")
#pragma comment (lib, "dxguid.lib")

// Standard Template Library.
#include <vector>
using std::vector; // Used for random access.
#include <list>
using std::list; // Used for iteration.
#include <string>
using std::string;
#include <map>
using std::map;
using std::pair;

// Macro Include Headers.
#include <assert.h>

// Custom Macros.
#ifndef SAFE_RELEASE
#define SAFE_RELEASE(p)	if (p) { p->Release(); p = NULL; }
#endif

#ifndef DXERROR
#define DXERROR(a)	{ OutputDebugString(a); return false; }
#endif

#ifndef DIERRBOX
#define DIERRBOX(a) { MessageBox(m_hWnd, a, "DirectInput Error", MB_OK | MB_ICONEXCLAMATION); return false; }
#endif

// #defines.
#define WINDOW_WIDTH	1024			//	Window Width.
#define WINDOW_HEIGHT	768				//	Window Height.

#endif /* CRESOURCEHEADER_H_ */

It seems that I need DIRECTX 9 libs, this is why my code is giving building errors.
Can any one help me giving the links od DirectX9 libs (or sdk) or what ever needed?

Thanks in advance :)