;                    */
   NCBASTAT    =0x33,      /* NCB ADAPTER STATUS                  */
   NUM_NAMEBUF =30,      /* Number of NAME''s BUFFER               */
  }

  [StructLayout(LayoutKind.Sequential)]
   public struct ADAPTER_STATUS
  {
   [MarshalAs(UnmanagedType.ByValArray, SizeConst=6)]
   public byte adapter_address;
   public byte   rev_major;  
   public byte   reserved0;  
   public byte   adapter_type;  
   public byte   rev_minor;  
   public ushort    duration;  
   public ushort    frmr_recv;  
   public ushort    frmr_xmit;  
   public ushort    iframe_recv_err;  
   public ushort    xmit_aborts;  
   public uint   xmit_success;  
   public uint   recv_success;  
   public ushort    iframe_xmit_err;  
   public ushort    recv_buff_unavail;  
   public ushort    t1_timeouts;  
   public ushort    ti_timeouts;  
   public uint   reserved1;  
   public ushort    free_ncbs;  
   public ushort    max_cfg_ncbs;  
   public ushort    max_ncbs;  
   public ushort    xmit_buf_unavail;  
   public ushort    max_dgram_size;  
   public ushort    pending_sess;  
   public ushort    max_cfg_sess;  
   public ushort    max_sess;  
   public ushort    max_sess_pkt_size;  
   public ushort    name_count;
  }

  [StructLayout(LayoutKind.Sequential)]
   public struct NAME_BUFFER
  {  
   [MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NCBNAMSZ)]
&