N050: NetBIOS is not loaded.

The XDB Server requires a NetBIOS-compatible network with NetBIOS running. Check with your Network Administrator. Also you must have both IBM and Novell NetWare in your CONFIG.SYS in OS/2.
Restriction: This topic applies to Windows environments only.

WINDOWS NOTE: In Windows, you must load NetBIOS prior to entering Windows. You might also be running non-IBM or Novell NetBIOS. XDB Server must see the file NETAPI.DLL which is only associated with IBM and Novell NetBIOS. Refer to file NETAPI.TXT.