こんなんで動かない? MS-DOS6.2

[config.sys]
FILES = 8
BUFFERS = 3
LASTDRIVE =Z
SHELL =A:\COMMAND.COM A:\ /P /E:2048
DOS =HIGH,UMB

[autoexec.bat]
@echo off
PATH (通したいパス)
set comspec=A:\command.com
set dosdir=A:\dos
set tmp=h:\
set temp=h:\
A:\SYS\UMB\ADDFILES.COM 29
A:\SYS\KSHELL\KSH -@imprs\ 300 700 10
crtrest on
crtrest 2