unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
    if biHelp in BorderIcons then
    begin
        BorderIcons:=BorderIcons-[biHelp];
    end
    else
    begin
        BorderIcons:=BorderIcons+[biHelp];
    end;
    BorderIcons:=[];
end;

end.