Трудности с include

#include "header2.h"

#include "header1.h"

#ifndef _HEADER_H_
#define _HEADER_H_
//Код
#endif

#ifndef SWindowsH
#define SWindowsH
//---------------------------------------------------------------------------
 
//******include from outside:
#include <vcl.h>
//******include from project:
#include "XWindow.h"
 
 
class SWindows
{
private:
    bool        FIsError;
    UnicodeString   FErrMessage;
 
    XWindow *FWindows[4]; //тут ошибка
    
    unsigned short  FNumWindow;
    unsigned short  FCount;
 
    TComponent  *FParent;
 
    
protected:
public:
    __fastcall  SWindows(TComponent* Owner);
    __fastcall  ~SWindows();
 
    void __fastcall             AddWindow();
    void __fastcall         PlaceWindow();
    void __fastcall         DeleteWindow(int Num);
 
    __property unsigned short   NumWindow = {read = FNumWindow};
    __property unsigned short   Count = {read = FCount};
    __property bool             IsError = {read = FIsError, write = FIsError};
    __property UnicodeString    ErrMessage = {read = FErrMessage, write = FErrMessage};
    __property TComponent       *ParentWindow = {read = FParent};
};
 
#endif

#ifndef XWindowH
#define XWindowH
//---------------------------------------------------------------------------
 
//******include from outside:
#include <vcl.h>
#include <gdiplus.h>
//******include from project:
#include "SWindows.h"
 
 
class XWindow : public TScrollBox
{
        typedef TScrollBox Inherited;
private:
    
    SWindows*       FWindows;//указатель на головной класс
 
    TCheckBox       *Selected;
    unsigned int        FNumber;
 
protected:
    
 
public:
    
 
    __fastcall XWindow(TComponent* Owner);
    __fastcall ~XWindow();
 
    
};
 
#endif

#ifndef SWindowsH
#define SWindowsH

#ifndef _SWINDOWS_H_
#define _SWINDOWS_H_

#ifndef XWindowH
#define XWindowH

#ifndef _XWINDOW_H_
#define _XWINDOW_H_

XWindow     *FWindows[4];

#ifndef HDR_A_H
#define HDR_A_H 1
 
class B;
 
class A {
    B * b;
    /* something else */
};
        
#endif /* HDR_A_H */

#ifndef HDR_B_H
#define HDR_B_H 1
 
class A;
 
class B {
    A * a;
    /* something else */
};
        
#endif /* HDR_B_H */