Creación de componente

[Migmam2]

Hola a todos,

Estoy intentando crear un componente que hereda de la clase TToolBar.
He aquí el código.

unit AltiBar;

interface

uses
  SysUtils, Classes, Controls, ToolWin, ComCtrls, StdCtrls, Dialogs;

const
  Cte_Min_Panel_Width = 250;
  Cte_Min_Panel_Height = 100;
  Cte_Side_Margin = 8;

  Cte_Button_Height = 80;
  Cte_Button_Width = 100;

  Cte_Ctrls_Space = 1;
  Cte_Font_Size = 8;


type
  TAltiBar = class(TToolBar)
  private
    { Private declarations }
    FButtonLogin: TToolButton;
    FButtonLogout: TToolButton;
    FButtonSep1: TToolButton;
    FImageList: TImageList;
    FLogin: String;
    FPassword: String;





  protected
    { Protected declarations }

  public
    { Public declarations }
    property Login : String read FLogin write FLogin;
    property Password: String read FPassword write FPassword;


    constructor Create (AOwner: TComponent); override;
    destructor Destroy; override;

  published
    { Published declarations }
  end;

procedure Register;

implementation

procedure Register;
begin
  RegisterComponents('Sit', [TAltiBar]);
end;

constructor TAltiBar.Create(AOwner: TComponent);
begin
  inherited Create(aOwner);
  Parent:= TWinControl(aowner);

  Self.Caption := '';
  self.Height  := 100;
  self.Width   := 862;

  // Controls creation

  FButtonSep1   := TToolButton.Create(Self);
  FButtonLogin  := TToolButton.Create(Self);
  FButtonLogout := TToolButton.Create(Self);

  FButtonLogin.Parent  := Self;
  FButtonLogout.Parent := Self;
  FButtonSep1.Parent := Self;

  FButtonLogin.Height  := Cte_Button_Height;
  FButtonLogin.Width   := Cte_Button_Width;

  FButtonLogout.Height := Cte_Button_Height;
  FButtonLogout.Width  := Cte_Button_Width;

  FButtonSep1.Height := Cte_Button_Height;
  FButtonSep1.Width  := Cte_Button_Width;


  FButtonLogin.Caption := 'Login';
  FButtonLogin.ShowHint := True;
  FButtonLogin.Style    := tbsButton;

  FButtonSep1.Style     := tbsSeparator;

  FButtonLogout.Caption := 'Logout';
  FButtonLogout.ShowHint := True;
  FButtonLogout.Style   := tbsButton;




end;


destructor TAltiBar.Destroy;
begin
  inherited;
end;



end.

Creo una nueva aplicación, pego el componente y se ve ok, ahora bien, cuando ejecuto la nueva aplicación me dice que class TToolButton not found!!!

Alguna idea.

Saludos,

Miguel Angel