Изменение каталога псевдонима во время выполнения приложения

procedure CheckTable(var Table: TTable; var TName: string);
var
  ChangePath: boolean;
  Path: string;
  ActiveState: Boolean;
begin
  if (TName = '') then
    TName := Table.TableName
  else
    with Table do
    begin
      ActiveState := Active;
      Close;
      Path := ExtractFilePath(TName);
      ChangePath := HasAttr(DatabaseName, faDirectory) or
        (CompareText(DatabaseName, Path) <> 0);
      if (Length(Path) > 0) and ChangePath then
        DatabaseName := Path;
      if (CompareText(ExtractFileName(Tname), TableName) <> 0)
        then
        TableName := ExtractFileName(Tname);
      Active := ActiveState;
    end;
end;