Fastopen Ü
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 Starts the Fastopen program, which improves performance on computers
 with large directories.  Fastopen decreases the amount of time that
 FreeDOS takes to open frequently used files.

 Fastopen tracks the location of files on hard disk and stores them in
 memory for fast access.

 Syntax: FASTOPEN drive:[[=]n] [drive:[[n][...]] [/X]
   drive: Specifies a hard disk drive for which you want Fastopen to
          track the opening of files.
   n      Specifies the number of file Fastopen can work with at the same
          time.  Valid values are in the range 10 through 999.  The
          default value is 48.
   /X     Creates the name cache in expanded memory instead of in
          conventional memory.  The name cache is an area of memory in
          which FreeDOS stores (caches) the locations and names of the
          files that you open.

 How Fastopen tracks information
 Every time you open a file, Fastopen records its name and location in the
 name cache.  If you later reopen a file recorded by Fastopen, the access
 time is greatly reduced.

 Memory requirements for Fastopen
 Fast open requires about 48 bytes of memory for each file that it tracks.