Пакование таблиц Paradox и dBASE

uses DBIProcs, DBITypes, DBIErrs;

function PackTable(tbl: TTable; db: TDatabase): DBIResult;
var
  crtd: CRTblDesc;
begin
  Result := DBIERR_NA;
  with tbl do
    if Active then
      Active := False;
  with db do
    if not Connected then
      Connected := True;
  FillChar(crtd, SizeOf(CRTblDesc), 0);
  StrPCopy(crtd.szTblName, tbl.TableName);
  crtd.bPack := True;
  Result := DbiDoRestructure(db.Handle, 1, @crtd, nil, nil, nil, FALSE);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  if PackTable(Table1,DataBase1) = DBIERR_NONE then 
    .....
  else 
    MessageBeep(0);
end;