C / C++ / MFC

using namespace System::DirectoryServices;//line 1268
void CClassName::MethodName(){
...
    DirectorySearcher* directorySearcher = new DirectorySearcher();//line 1701
    directorySearcher->ClientTimeout = 60000;//line 1702
...
}

file.cpp(1701): error C2061: syntax error : identifier 'DirectorySearcher'
file.cpp(1701): error C2065: 'directorySearcher' : undeclared identifier
file.cpp(1701): error C2065: 'DirectorySearcher' : undeclared identifier
file.cpp(1702): error C2227: left of '->ClientTimeout' must point to class/struct/union
        type is ''unknown-type''
file.cpp(1268): error C2653: 'System' : is not a class or namespace name
file.cpp(1268): error C2871: 'DirectoryServices' : a namespace with this name does not exist
file.cpp(1702): error C3861: 'directorySearcher': identifier not found, even with argument-dependent lookup

int CMainFrame::OnToolBarDestroy()
{

    //if (!m_wndToolBar)
    //{
    //  m_wndOutput.AddStringStatusTab(_T("Error: Icon toolbar is already removed, action cancelled"));
    //  m_wndOutput.AddStringDebugTab(_T("Debug: MainFrame--Error: Icon toolbar is already removed, action cancelled"));
    //  return -1;
    //}

    //m_wndToolBar.Invalidate();
    //m_wndMenuBar.DestroyWindow();
    //m_wndToolBar.DestroyWindow();
    //m_wndToolBar.AdjustDockingLayout();
    //RecalcLayout();
    //OnToolBarCreate();

    //return 0;

    //CRect rcClientOld;
    //CRect rcClientNew;
    //GetClientRect(rcClientOld);
    //RepositionBars(AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, 0, reposQuery, rcClientNew);

    //m_wndToolBar.ShowPane(FALSE, FALSE, TRUE); // Hide toolbar
    //RecalcLayout();

    CDockingManager myPane;
    myPane.RemovePaneFromDockManager(&m_wndToolBar, TRUE, TRUE, TRUE, NULL);
    m_wndToolBar.Invalidate();
    m_wndToolBar.DestroyWindow();

    myPane.SaveState();

    CPaneContainer myContainer;
    myContainer.RemoveNonValidPanes();

    RecalcLayout();

    return 0;
}

int CMainFrame::OnToolBarCreate()
{
    if (m_wndToolBar)
    {
        m_wndOutput.AddStringStatusTab(_T("Error: Icon toolbar is already active, action cancelled"));
        m_wndOutput.AddStringDebugTab(_T("Debug: MainFrame--Error: Icon toolbar is already active, action cancelled"));
        return -1;
    }

    CMFCPopupMenu::SetForceMenuFocus(FALSE);
    //CMDIChildWndEx::m_bEnableFloatingBars = TRUE;

    // Create ToolBar toolbar
    if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_ALIGN_TOP
        | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
        !m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
    {
        TRACE0("Failed to Create Dialog ToolBar\n");
        return -1;
    }

    CMFCToolBar myTools;
    myTools.IsFloating();

    //m_wndMenuBar.EnableDocking(CBRS_ALIGN_ANY);
    m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY); // ------- The problem starts with this line...
    EnableDocking(CBRS_ALIGN_ANY);
    //DockPane(&m_wndMenuBar);
    DockPane(&m_wndToolBar);
    //  DockPaneLeftOf(&m_wndToolBar);
    //CDockingManager::SetDockingMode(DT_SMART);
    EnableAutoHidePanes(CBRS_ALIGN_ANY);

    CRect rcClientOld;
    CRect rcClientNew;
    GetClientRect(rcClientOld);
    RepositionBars(AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, 0, reposQuery, rcClientNew);

    m_wndOutput.AddStringStatusTab(_T("I'm created 1 times"));

    //m_wndToolBar.ResetAll();

    //CPaneContainer myContainer;
    //myContainer.RemoveNonValidPanes();

    //CDockingManager myPane;
    //myPane.AdjustDockingLayout();

    m_wndToolBar.ShowPane(TRUE, FALSE, TRUE); // Show toolbar
    RecalcLayout(); 
    //m_wndToolBar.ShowPane(TRUE, FALSE, TRUE); // Show toolbar
    return 0;
}