const wxChar*                       wxMessageBoxCaptionStr           = wxT("Message");
 const wxChar*                       wxFileSelectorPromptStr          = wxT("Select a file");
 const wxChar*                       wxFileSelectorDefaultWildcardStr = wxT("*.*");
-const wxChar*                       wxInternalErrorStr               = wxT("wxWindows Internal Error");
-const wxChar*                       wxFatalErrorStr                  = wxT("wxWindows Fatal Error");
 const wxChar*                       wxTreeCtrlNameStr                = wxT("treeCtrl");
 const wxChar*                       wxDirDialogNameStr               = wxT("wxDirCtrl");
 const wxChar*                       wxDirDialogDefaultFolderStr      = wxT("/");