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uses
  ShellAPI;

function ShowFileProperties(const hWndOwner: HWnd;
  FileName, Caption: PChar): Boolean;
var
  Info : TShellExecuteInfo;
begin
  With Info Do Begin
    cbSize := SizeOf(Info);
    fMask  := SEE_MASK_NOCLOSEPROCESS OR
      SEE_MASK_INVOKEIDLIST OR SEE_MASK_FLAG_NO_UI;
    wnd    := hWndOwner;
    lpVerb := 'properties';
    lpFile := FileName;
    lpParameters := Caption;
    lpDirectory := Nil;
    nShow := 0;
    hInstApp := 0;
    lpIDList := Nil;
  End;

  Result := ShellExecuteEx(@Info);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  ShowFileProperties(self.Handle,'c:\LastCrap\Datei.txt',nil);
  ShowFileProperties(self.Handle,'C:\',nil);
end;					

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OpenCD('H');
CloseCD('H');