问一个关于win2k系统的问题

try:
unit Unit1;
interface
uses
  Windows, Messages, SysUtils, shellapi,Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;
type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
implementation
{$R *.DFM}
procedure ToRecycle(AHandle: THandle; const ADirName: String);
var
  SHFileOpStruct: TSHFileOpStruct;
  DirName: PChar;
  BufferSize: Cardinal;
begin
  BufferSize := Length(ADirName) +1 +1;
  GetMem(DirName, BufferSize);
  try
    FillChar(DirName^, BufferSize, 0);
    StrCopy(DirName, PChar(ADirName));    with SHFileOpStruct do
    begin
      Wnd := AHandle;
      wFunc := FO_DELETE;
      pFrom := DirName;
      pTo := nil;
      fFlags := FOF_ALLOWUNDO;      fAnyOperationsAborted := False;
      hNameMappings := nil;
      lpszProgressTitle := nil;
    end;    if SHFileOperation(SHFileOpStruct) <> 0 then
      RaiseLastWin32Error;
  finally
    FreeMem(DirName, BufferSize);
  end;
end;
procedure TForm1.Button1Click(Sender: TObject);
 begin
  ToRecycle(0,YourDirectory);
 end;end.