:O:O: Oh my God!!! :O:O

The previous order of #include in MyChannell.cpp was:

#include "stdafx.h"
#include "MyChannel.h"
#include "stdlib.h"
#include "A3d_EngineInterface.h"
#include "Aco_String.h"
#include "Aco_Float.h"

#include <GL/glut.h>
#include <vhandtk/vhtCore.h>
#include <vhandtk/vhtBase.h>

I have changed the order so:

#include <GL/glut.h>
#include <vhandtk/vhtCore.h>
#include <vhandtk/vhtBase.h>

#include "stdafx.h"
#include "MyChannel.h"
#include "stdlib.h"
#include "A3d_EngineInterface.h"
#include "Aco_String.h"
#include "Aco_Float.h"

and there aren't errors!!!
I can't believe!