Command: callver

  CALLVER sets the FreeCOM command interpreter version number.
  CALLVER runs one program (in a new shell, using COMSPEC) with a
  fake DOS version number, or globally (only in FreeDOS)
  modify the reported DOS version (CALLVER 0.00 reverts).

Syntax:

  CALLVER x.xx [PROGRAM [ARGUMENTS]][/?]

Options:

  PROGRAM    Name of the program you want to start.
  ARGUMENTS  Options of the program you want to start.
  /?         Shows the help.

Comments:

  x.xx is the version number; each x can be any digit from 0-9.
  This command may be used for old programs which look for a certain
  DOS version.

Examples:

  In COMMAND LINE:
    callver 6.20
    callver 6.22 edit c:\blabblah.txt
    callver 0.00                    -> displays 7.10
    callver 9.99                    -> displays 9.99 (max. value)
  It does NOT override settings made by CONFIG.SYS / FDCONFIG.SYS
  command version in VER /R.

See also:

  config.sys/fdconfig.sys
 (setver)
  ver
  version

  Copyright © 2003 Robert Platt, updated 2011 and 2022 by W. Spiegl.

  This file is derived from the FreeDOS Spec Command HOWTO.
  See the file H2Cpying for copying conditions.