Need Help......Hack

#define UnlimitedAmmo 0xA68F90
#define WeaponMgr 0xA68F90

using namespace std;



DWORD cshell = (DWORD)LoadLibraryA( "CShell.dll" );
DWORD WeaponMgr = *(PDWORD)(cshell + 0xA68F90);

if(UnlimitedAmmo) {
	*(float*)(UnlimitedAmmo + 0x7FC) = (float)150;

}

if(Wallclass) {
		for(int i = 0;i<64;i++)	{
			*(float*)(Wallclass+(i*0x04F4)+0x04E8) = (float)1; //String is "EdgeShotEnabled" 
			*(float*)(Wallclass+(i*0x04F4)+0x04EC) = (float)1; //String is "WallShotEnabled" 
			*(float*)(Wallclass+(i*0x04F4)+0x04F0) = (float)1; //String is "PerfectWallShotEnabled"
		}
	}
}

#include "sxs.h"
#include <windows.h>




using namespace std;


BOOL WINAPI WaitForGameLibs(LPVOID) 
{
	try	
	{
		if(!Hacks->ReadyForHacks()) throw 1;
	}
	catch (int error) 
	{
		switch (error) 
		{
		case 1:
			CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)WaitForGameLibs, NULL, NULL, NULL);
			return false;
		default:
			return false;
		}
	}
	Hacks = new cHacks();
	return true;
}

BOOL WINAPI DllMain(HINSTANCE Instance, DWORD Reason, LPVOID Reserved)
{
	if(Reason == DLL_PROCESS_ATTACH)
	{
		DisableThreadLibraryCalls(Instance);
		MessageBoxA(0, "Credits to Jeff edited by badboy3", "MPGH", 0);
		CreateThread(0, 0, (LPTHREAD_START_ROUTINE) WaitForGameLibs, 0, 0, 0);
	}
	return true;
}

Compiler: Default compiler
Building Makefile: "C:\Users\badboy3\Documents\Makefile.win"
Executing  make...
make.exe -f "C:\Users\badboy3\Documents\Makefile.win" all
g++.exe -c sxs.cpp -o sxs.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"C:/Dev-Cpp/include/c++/3.4.2/backward"  -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32"  -I"C:/Dev-Cpp/include/c++/3.4.2"  -I"C:/Dev-Cpp/include"  -DBUILDING_DLL=1 

In file included from sxs.cpp:2:
sxs.h:9: error: `DWORD' does not name a type