var
  Form1: TForm1;    implementation    uses Winsock, NB30;    {$R *.dfm}    function getIPs: TStrings;
type
  TaPInAddr = array[0..10] of PInAddr;
  PaPInAddr = ^TaPInAddr;
var
  phe: PHostEnt;
  pptr: PaPInAddr;
  Buffer: array[0..63] of Char;
  I: Integer;
  GInitData: TWSAData;
begin
  WSAStartup($101, GInitData);
  Result := TstringList.Create;
  Result.Clear;
  GetHostName(Buffer, SizeOf(Buffer));
  phe := GetHostByName(buffer);
  if phe = nil then Exit;
  pPtr := PaPInAddr(phe^.h_addr_list);
  I    := 0;
  while pPtr^[I] <> nil do
  begin
    Result.Add(inet_ntoa(pptr^[I]^));
    Inc(I);
  end;
  WSACleanup;
end;    function GetMACAdress: string;
var
  NCB: PNCB;
  Adapter: PAdapterStatus;      URetCode: PChar;
  RetCode: char;
  I: integer;
  Lenum: PlanaEnum;
  _SystemID: string;
  TMPSTR: string;
begin
  Result    := '';
  _SystemID := '';
  Getmem(NCB, SizeOf(TNCB));
  Fillchar(NCB^, SizeOf(TNCB), 0);      Getmem(Lenum, SizeOf(TLanaEnum));
  Fillchar(Lenum^, SizeOf(TLanaEnum), 0);      Getmem(Adapter, SizeOf(TAdapterStatus));
  Fillchar(Adapter^, SizeOf(TAdapterStatus), 0);      Lenum.Length    := chr(0);
  NCB.ncb_command := chr(NCBENUM);
  NCB.ncb_buffer  := Pointer(Lenum);
  NCB.ncb_length  := SizeOf(Lenum);
  RetCode         := Netbios(NCB);      i := 0;
  repeat
    Fillchar(NCB^, SizeOf(TNCB), 0);
    Ncb.ncb_command  := chr(NCBRESET);
    Ncb.ncb_lana_num := lenum.lana[I];
    RetCode          := Netbios(Ncb);        Fillchar(NCB^, SizeOf(TNCB), 0);
    Ncb.ncb_command  := chr(NCBASTAT);
    Ncb.ncb_lana_num := lenum.lana[I];
    // Must be 16
    Ncb.ncb_callname := '*               ';        Ncb.ncb_buffer := Pointer(Adapter);        Ncb.ncb_length := SizeOf(TAdapterStatus);
    RetCode        := Netbios(Ncb);
    //---- calc _systemId from mac-address[2-5] XOR mac-address[1]...
    if (RetCode = chr(0)) or (RetCode = chr(6)) then
    begin
      _SystemId := IntToHex(Ord(Adapter.adapter_address[0]), 2)   '-'  
        IntToHex(Ord(Adapter.adapter_address[1]), 2)   '-'  
        IntToHex(Ord(Adapter.adapter_address[2]), 2)   '-'  
        IntToHex(Ord(Adapter.adapter_address[3]), 2)   '-'  
        IntToHex(Ord(Adapter.adapter_address[4]), 2)   '-'  
        IntToHex(Ord(Adapter.adapter_address[5]), 2);
    end;
    Inc(i);
  until (I >= Ord(Lenum.Length)) or (_SystemID <> '00-00-00-00-00-00');
  FreeMem(NCB);
  FreeMem(Adapter);
  FreeMem(Lenum);
  GetMacAdress := _SystemID;
end;    procedure TForm1.Button1Click(Sender: TObject);
begin
  Memo1.Lines.AddStrings(GetIps);
  Edit2.Text := GetMACAdress;
end;