dll files in microsoft visual c++ 6

ok....i'm trying to build a dll file in c++. I'm just a beginner here and i want to make functions in c++, incorporate them into a .dll file and then use those functions in vb via a .dll file.

heres my c++ dll code:

test.h

// test.h : main header file for the TEST DLL
//

#if !defined(AFX_TEST_H__5456A6C6_1B56_11D5_9D42_E0ACEAB76910__INCLUDED_)
#define AFX_TEST_H__5456A6C6_1B56_11D5_9D42_E0ACEAB76910__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#ifndef __AFXWIN_H__
#error include 'stdafx.h' before including this file for PCH
#endif

#include "resource.h" // main symbols

/////////////////////////////////////////////////////////////////////////////
// CTestApp
// See test.cpp for the implementation of this class
//

class CTestApp : public CWinApp
{
public:
CTestApp();
char* hi();

// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CTestApp)
//}}AFX_VIRTUAL

//{{AFX_MSG(CTestApp)
// NOTE - the ClassWizard will add and remove member functions here.
// DO NOT EDIT what you see in these blocks of generated code !
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_TEST_H__5456A6C6_1B56_11D5_9D42_E0ACEAB76910__INCLUDED_)

----------------------------------------------------------
test.cpp

// test.cpp : Defines the initialization routines for the DLL.
//

#include "stdafx.h"
#include "test.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

//
// Note!
//
// If this DLL is dynamically linked against the MFC
// DLLs, any functions exported from this DLL which
// call into MFC must have the AFX_MANAGE_STATE macro
// added at the very beginning of the function.
//
// For example:
//
// extern "C" BOOL PASCAL EXPORT ExportedFunction()
// {
// AFX_MANAGE_STATE(AfxGetStaticModuleState());
// // normal function body here
// }
//
// It is very important that this macro appear in each
// function, prior to any calls into MFC. This means that
// it must appear as the first statement within the
// function, even before any object variable declarations
// as their constructors may generate calls into the MFC
// DLL.
//
// Please see MFC Technical Notes 33 and 58 for additional
// details.
//

/////////////////////////////////////////////////////////////////////////////
// CTestApp

BEGIN_MESSAGE_MAP(CTestApp, CWinApp)
//{{AFX_MSG_MAP(CTestApp)
// NOTE - the ClassWizard will add and remove mapping macros here.
// DO NOT EDIT what you see in these blocks of generated code!
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestApp construction

CTestApp::CTestApp()
{
// TODO: add construction code here,
// Place all significant initialization in InitInstance
}

char* CTestApp::hi()
{
return "Hello";
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CTestApp object

CTestApp theApp;
----------------------------------

now all this code compiles fine and creates the dll file but when i want to use it in visual basic I create a module and add the following line of code to it.

Public Declare Function Test Lib "test.dll" Alias "hi" () As String

then in my main form i have

Private Sub Form_Load()
MsgBox Test
End Sub

when i run the program it gives me this error:

Run-time error '453':
Can't find DLL entry point hi in test.dll

could someone help me out here!!!