Error when trying to use functions from dlls

Question

My code:

dll:

#include "stdafx.h"
#include <iostream.h>

extern "C" __declspec(dllexport) void F1()
{
    cout << "It works\n";
}

extern "C" __declspec(dllexport) int F2()
{
    return 154827;
}

extern "C" __declspec(dllexport) void F3(int n)
{
    cout << "It works: "<<n<<"\n";
}

extern "C" __declspec(dllexport) int F4(int n)
{
    return n+1;
}

console application:

#include "stdafx.h"
#include <windows.h>
#include <iostream.h>
#include <stdio.h>
#include <conio.h>

typedef void (WINAPI*f1)();
typedef int (WINAPI*f2)();
typedef void (WINAPI*f3)(int);
typedef int (WINAPI*f4)(int);

#define MAXMODULE 50

f1 F1;
f2 F2;
f3 F3;
f4 F4;

void main(int argc, char* argv[])
{
    HINSTANCE hLib=LoadLibrary("dllll.dll");

    if(hLib==NULL)
    {
        cout << "Unable to load library!" << endl;
        getch();
        return;
   }

    char mod[MAXMODULE];

   GetModuleFileName((HMODULE)hLib, (LPTSTR)mod, MAXMODULE);
   cout << "Library loaded: " << endl;


    F1=(f1)GetProcAddress((HMODULE)hLib, "F1");
    F2=(f2)GetProcAddress((HMODULE)hLib, "F2");
    F3=(f3)GetProcAddress((HMODULE)hLib, "F3");
    F4=(f4)GetProcAddress((HMODULE)hLib, "F4");

   if((F1==NULL) || (F2==NULL) || (F3==NULL) || (F4==NULL)) {

        cout << "Unable to load function(s)." << endl;
        FreeLibrary((HMODULE)hLib);
        return;
   }

   F1();
   cout<<F2()<<endl;
   F3(1515);
   cout << F4(12) << endl;   //works now :)

   FreeLibrary((HMODULE)hLib);

   getch();

    return;
}

Output:

Library loaded:
154827
It works
It works: 1515

Questions:
1. Why is F1 displayed after F2? F1 is called before F2.
2. F3 Works properly but makes a window pop up twice. I click Ignore on it.

_{(source: ifotos.pl)}

3. Why F4 doesn't work at all? It raises an exception.

EDIT:
Question 2 and 3 are solved now.

For 1, output now is:

Library loaded:  
154827  
13  
It works  
It works: 1515  

Which is in order: F2, F4, F1, F3.
I call them: F1, F2, F3, F4.
Why is it happening?