code: def _netbios_getnode():
      
      import win32wnet, netbios
      ncb = netbios.NCB()
      ncb.Command = netbios.NCBENUM
      ncb.Buffer = adapters = netbios.LANA_ENUM()
      adapters._pack()
      if win32wnet.Netbios(ncb) != 0:
          return
      adapters._unpack()
      for i in range(adapters.length):
          ncb.Reset()
          ncb.Command = netbios.NCBRESET
          ncb.Lana_num = ord(adapters.lana[i])
          if win32wnet.Netbios(ncb) != 0:
              continue
          ncb.Reset()
          ncb.Command = netbios.NCBASTAT
          ncb.Lana_num = ord(adapters.lana[i])
          ncb.Callname = '*'.ljust(16)
          ncb.Buffer = status = netbios.ADAPTER_STATUS()
          if win32wnet.Netbios(ncb) != 0:
              continue
          status._unpack()
          bytes = map(ord, status.adapter_address)
          return ((bytes[0]<<40L) + (bytes[1]<<32L) + (bytes[2]<<24L) +
                  (bytes[3]<<16L) + (bytes[4]<<8L) + bytes[5])
docs: Get the hardware address on Windows using NetBIOS calls.
      See http://support.microsoft.com/kb/118623 for details.