The description below is from the book DOS the
Easy Way by Everett Murdock Ph.D.
for information about downloading the book.
Type: Internal (5.0 and later)
LOADHIGH (LH) [d:][path]filename [parameters]
Purpose: Loads memory resident application into reserved area of
Tells DOS to load the specified program into the upper portion of
increases the memory available for use by programs.
You can use the LOADHIGH command with the DOSKEY, DOSSHELL, KEYB,
NLSFUNC, MODE, SHARE, PRINT, and APPEND commands.
LOADHIGH requires a computer with 350K bytes of extended memory. If you
using a computer that has a 386 or 486 microprocessor, you should specify
EMM386.EXE device driver in your CONFIG.SYS configuration file (refer to
6, Tips for Advanced Users, for more information about using the