Integrate CMDITabBar into MDI MFC app

I would like to use CMDITabBar (from WinMerge) into a MFC MDI test application.

Here is the test app: https://1drv.ms/u/c/dedcb6ef190b8fd4/ESppBUOCT-hJog-OyL43QXsBooSUM0liWkY9PHAeQo1FBw?e=BeSIzC

The code for integration (CMainFrame header):

protected:  // control bar embedded members
	CMFCMenuBar     m_wndMenuBar;
	CMFCStatusBar   m_wndStatusBar;
	CMDITabBar		m_wndTabBar; // <---

In implementation file:

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CMDIFrameWndEx::OnCreate(lpCreateStruct) == -1)
		return -1;

	if (!m_wndTabBar.Create(this))
	{
		TRACE(_T("Failed to create tab bar\n"));
		return -1;      // fail to create
	}
	m_wndTabBar.SetAutoMaxWidth(false);
....

But the tab control does not show up. I am thinking that is because the m_wndTabBar should be docked, which I also tried:

	// TODO: Delete these five lines if you don't want the toolbar and menubar to be dockable
	EnableDocking(CBRS_ALIGN_ANY);
	m_wndTabBar.EnableDocking(CBRS_ALIGN_ANY);
	m_wndMenuBar.EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndTabBar, AFX_IDW_DOCKBAR_TOP);

then, I got:

File: D:\a\_work\1\s\src\vctools\VC7Libs\Ship\ATLMFC\Src\MFC\winfrm2.cpp
Line: 92

				ASSERT(pDockBar != NULL);
				// assert fails when initial CBRS_ of bar does not
				// match available docking sites, as set by EnableDocking()

It is possible to use this CMDITabBar into a simple MDI MFC app? Can you help here?

P.S.

Here is the defintion of CMDITabs:

class CMDITabBar : public CControlBar
{
	DECLARE_DYNAMIC(CMDITabBar)
private:
	bool m_bOnTitleBar;
	CMyTabCtrl m_tabCtrl;
	CFont m_font;
	CTitleBarHelper m_titleBar;
public:
	CMDITabBar()
		: m_bOnTitleBar(true)
	{}
	virtual ~CMDITabBar() {}
	BOOL Update(bool bOnTitleBar, bool bMaxmized);
	void UpdateActive(bool bActive);
	BOOL Create(CMDIFrameWnd* pParentWnd);
	void UpdateTabs() { m_tabCtrl.UpdateTabs(); }
	bool GetAutoMaxWidth() const { return m_tabCtrl.GetAutoMaxWidth(); }
	void SetAutoMaxWidth(bool bAutoMaxWidth) { m_tabCtrl.SetAutoMaxWidth(bAutoMaxWidth); }
	int GetItemCount() const { return m_tabCtrl.GetItemCount(); }
	virtual void OnUpdateCmdUI(CFrameWnd* pTarget, BOOL bDisableIfNoHndler) {}
	virtual CSize CalcFixedLayout(BOOL bStretch, BOOL bHorz);
protected:
	//{{AFX_MSG(CMDITabBar)
	afx_msg LRESULT OnNcHitTest(CPoint point);
	afx_msg void OnNcMouseMove(UINT nHitTest, CPoint point);
	afx_msg void OnNcMouseLeave();
	afx_msg void OnNcLButtonDblClk(UINT nHitTest, CPoint point);
	afx_msg void OnNcLButtonDown(UINT nHitTest, CPoint point);
	afx_msg void OnNcLButtonUp(UINT nHitTest, CPoint point);
	afx_msg void OnNcRButtonDown(UINT nHitTest, CPoint point);
	afx_msg void OnNcRButtonUp(UINT nHitTest, CPoint point);
	afx_msg void OnSize(UINT nType, int cx, int cy);
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	afx_msg void OnPaint();
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
private:
};