config.sys:（每段之间空一行）

menuitem=Unhide,Unhide partition 3
menuitem=Backup,Backup part1 to part3
menuitem=Restore,Restore partition 1
menuitem=Pqdi,Run Drive Image Pro
menudefault=Unhide,5
menucolor=15,0





device=himem.sys /testmem<img src="images/smilies/face-surprise.png" align="absmiddle" border="0">ff
dos=high,umb
files=40
buffers=22,0
lastdrive=F
autoexec.bat:（每段之间空一行）
@echo off
goto %config%
:Unhide
pqdi /cmd=unhide.txt /err=error.txt
:Backup
lh smartdrv 8192
deltree/y C:\Recycled
deltree/y C:\Windows\Temp
deltree/y C:\Windows\Tempor~1
del C:\Windows\win386.swp
pqdi /cmd=backup.txt /ERR=ERROR.TXT /img=E:\part1.pqi
:Restore
lh smartdrv 8192

pqdi /cmd=restore.txt /err=error.txt /img=E:\part1.pqi
<img src="images/smilies/face-raspberry.png" align="absmiddle" border="0">qdi
lh msmouse
pqdi
问：
device=himem.sys /testmem<img src="images/smilies/face-surprise.png" align="absmiddle" border="0">ff其中的/testmem<img src="images/smilies/face-surprise.png" align="absmiddle" border="0">ff
pqdi /cmd=unhide.txt /err=error.txt
和最后一条pqdi各是什么含义，望不吝赐教。