CEdit does not get WM_CHAR in a DLL when the main application is minimized

Hi,
I have a simple application that lunch a DLL. The DLL opens a window
with a splitter of 2 CFormView and each one of the forms there is an
edit.
The code is as following:
void CTest002View::OnBnClickedButton2()
{
  HINSTANCE hDLL; // Handle to DLL
  hDLL = LoadLibrary("SessionWindow.dll");
  if (hDLL == NULL)
    FreeLibrary(hDLL);
  else
  {
     typedef BOOL (CreateObject3)();
     CreateObject3* pCreateObject3 = (CreateObject3
*)GetProcAddress(hDLL, "CreateObject3");
     BOOL bRet = (pCreateObject3)();
  }
}

 The method in the DLL is as following:
extern "C" __declspec(dllexport) BOOL CreateObject3()
{
  //AFX_MANAGE_STATE(AfxGetStaticModuleState());
  SessionFrame2* pSessionFrame2 = new SessionFrame2;
  pSessionFrame2->Create(NULL, _T("Session Frame"),
WS_OVERLAPPEDWINDOW , CRect(20, 20, 400, 400), NULL, NULL,
WS_EX_TOPMOST);
  pSessionFrame2->ShowWindow(SW_SHOWNORMAL);
  return TRUE;
}

Everything works fine, and when I minimized the main application I
still can type on the edits in the dll.
But, when I'm adding the method
AFX_MANAGE_STATE(AfxGetStaticModuleState());
I can not type on the edits in the DLL when I minimized the
application.

Any idea ?
-- Dani