Compatibility: 2.0+ 
 Purpose: Sets the number of File Control Blocks (FCBs) that may be opened
          at the same time.

    Uses: You may need to increase this setting when running some very
          old programs that open a lot of files simultaneously and which
          occasionally fail when attempting to open a file.

  Syntax: FCBS=n


        n is the maximum number of File Control Blocks that can be open at
          one time.  n can range from 1 to 255.  The default is 4.

█▌TECH Notes▐█

  ■ It's sort of interesting to note that DOS itself uses FCB calls now and
    then.  In the command Dir /C (to display DoubleSpace compression
    ratios), DOS uses fn 11H to obtain file info in order to get a complete
    directory entry, so that it can trace the FAT chain, access the MDFAT,
    and thereby learn the current compression ratio.

    See CVF Layout for related info.

See Also: CONFIG.SYS Commands