p;                           
   }

  NRC_PENDING     = $ff;    { asynchronous command is not yet finished
   }

{  Values for transport_id }

ALL_TRANSPORTS = ''M''#$00#$00#$00;
MS_NBF         = ''MNBF'';


{  values for name_flags bits. }

NAME_FLAGS_MASK = $87;

GROUP_NAME      = $80;
UNIQUE_NAME     = $00;

REGISTERING     = $00;
REGISTERED      = $04;
DEREGISTERED    = $05;
DUPLICATE       = $06;
DUPLICATE_DEREG = $07;


{  Values for state }

  LISTEN_OUTSTANDING      = $01;
  CALL_PENDING            = $02;
  SESSION_ESTABLISHED     = $03;
  HANGUP_PENDING          = $04;
  HANGUP_COMPLETE         = $05;
  SESSION_ABORTED         = $06;


type


{ Netbios Name }
  TNBName = array[0..(NBNAMESIZE - 1)] of byte;

{ MAC address }
  TMacAddress = array[0..5] of byte;

  PNCB = ^TNCB;

{ Netbios Control Block }

{$IFDEF WIN32}
  TNCBPostProc = procedure(P: PNCB);
{$ENDIF}

  TNCB = packed record        { Netbios Control Block }
    Command:  byte;      { command code                       }
    RetCode:  byte;      { return code                        }
    LSN:      byte;      { local session number               }
    Num:      byte;      { name number                        }
    Buf:      ^byte;     { data buffer                      &nbs