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.

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