Имя пользователя Paradox

function ID: string;
var
  rslt: DBIResult;
  szErrMsg: DBIMSG;
  pszUserName: PChar;
begin
  try
    Result := '';
    pszUserName := nil;
    GetMem(pszUserName, SizeOf(Char) * DBIMAXXBUSERNAMELEN);
    rslt := DbiGetNetUserName(pszUserName);
    if rslt = DBIERR_NONE then
      Result := StrPas(pszUserName)
    else
    begin
      DbiGetErrorString(rslt, szErrMsg);
      raise Exception.Create(StrPas(szErrMsg));
    end;
    FreeMem(pszUserName, SizeOf(Char) * DBIMAXXBUSERNAMELEN);
    pszUserName := nil;
  except
    on E: EOutOfMemory do
      ShowMessage('Ошибка. ' + E.Message);
    on E: Exception do
      ShowMessage(E.Message);
  end;
  if pszUserName <> nil then
    FreeMem(pszUserName, SizeOf(Char) * DBIMAXXBUSERNAMELEN);
end;