FCBS= (CONFIG.SYS Command)
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.
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.
■ 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