Visual C++ 2010 и Dll

#include <stdio.h>
extern _declspec (dllexport) int MyFunction (int , int);

#include "Mydll.h"
 
int MyFunction(int a , int b)
{
    int result = 0;
    result = a+b;
    return result;
}

#include <windows.h>
#include <iostream>
__declspec (dllimport) int MyFunction (int,int);

#include "test2.h"
 
HINSTANCE hInstDll;
HMODULE hinstdll;
using namespace std;
int main ()
 
{
    int stop ;
hinstdll = LoadLibraryW ((LPCWSTR) "C:\MyDLL.dll");
 
if (hinstdll == NULL){MessageBeep(-1);}
return (1);
}

#include <stdio.h>
extern "C" __declspec(dllexport) int MyFunction (int , int);

#include "Mydll.h"
 
int MyFunction(int a , int b)
{
        int result = 0;
        result = a+b;
        return result;
}

#include <iostream>
#include <windows.h>
 
HMODULE hinstdll;
typedef int (*_MyFunc)(int, int);
 
int main ()
{
    hinstdll = LoadLibrary(L"C:\\MyDLL.dll");
    if(!hinstdll)
    {
        std::cout<<"DLL not found";
        return 0;
    }
    _MyFunc MyFunction = (_MyFunc)GetProcAddress(hinstdll, "MyFunction");
    if(!MyFunction)
    {
        std::cout<<"Function \"MyFunction\" not found";
        return 0;
    }
    std::cout<<MyFunction(5, 6);
    return 0;
}