C / C++ / MFC

void CGDlg::OnButton1() 
{
	WIN32_FIND_DATA wfd;
	HANDLE hRes = FindFirstFile("C:\\Documents and Settings\\dator19\\Skrivbord\\MUMMEL\\*.txt", &wfd);
	BOOL bOk = (hRes != INVALID_HANDLE_VALUE);
	while(bOk)
	{
		bOk = FindNextFile(hRes, &wfd);
		m_ListBox1.AddString(wfd.cFileName);
	}
}

2.txt
3.txt
4.txt
4.txt

1.txt
2.txt
3.txt
4.txt

for Release MinSize/MinDependency configuration
     while _tsplitpaht(..) is in use 
     I get this Linkage error message:

         Linking...
         Creating library ../CopyFilePath.lib    
              and  object ../CopyFilePath.exp
         LIBCMT.lib(crt0.obj) : error LNK2001: 
         unresolved external symbol _main
         ../CopyFilePath.dll : fatal error LNK1120: 
         1 unresolved externals
         Error executing link.exe.
    
     while commenting _tsplitpath(..) I get no error msg.

for Debug configuration
     while _tsplitpaht(..) is in use I get NO error msg

IGraphBuilder* m_pGraph;<br />
IVideoWindow* m_pVidWin;<br />
IMediaEventEx* m_pEvent;<br />
IMediaControl* m_pMediaControl;<br />
<br />
USES_CONVERSION; <br />
CoCreateInstance(CLSID_FilterGraph, NULL,<br />
    CLSCTX_INPROC,IID_IGraphBuilder, (void **)&m_pGraph);<br />
m_pGraph->RenderFile(A2W(m_strVideoFile),NULL);<br />
m_pGraph->QueryInterface(IID_IVideoWindow, (void **)&m_pVidWin); <br />
<br />
m_pVidWin->put_Owner((OAHWND)this->GetSafeHwnd()); <br />
m_pVidWin->put_WindowStyle(WS_CHILD); <br />
<br />
m_pGraph->QueryInterface(IID_IMediaEventEx, (void **)&m_pEvent); <br />
m_pEvent->SetNotifyWindow((OAHWND)this->GetSafeHwnd(),WM_GRAPHNOTIFY, 0); <br />
<br />
m_pGraph->QueryInterface(IID_IMediaControl, (void **)&m_pMediaControl); <br />
m_pVidWin->SetWindowPosition(XMARG,YMARG,iWidth,iHeight);<br />
m_pVidWin->put_Visible (OATRUE); <br />
m_pMediaControl->Run();