PSL in WinPE

I need to find a way to eject the CD/DVD drive when a script completes and then shutdown the computer.

Here is a breakdown of what I want to accomplish:

1. Insert WinPE CD and a USB(with image on it) into a computer and reboot.

2. WinPE loads and Auto Runs a script that images the computer from the .pbf on the USB drive.

3. When the imaging completes the CD tray ejects and the computer shutsdown.


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Here are the issues that I run into:

1. Depending on the amount of drives in different computers the USB drive will have a different drive letter. Need a way to assign the USB drive to a specific letter on WinPE startup.

2. I don't see a command in PSL to eject the cd tray. Is there a way to call a different file or .exe from within PSL? I'm thinking AutoIT or something may work here.

3. What is the proper script line for shutting down the computer and where would I put that in my script.

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Here is my script that Auto Runs on WinPE load:

Code:

// This file was automatically generated by {VENDOR_NAME} script generator
// Use {VENDOR_NAME} Script Interpretator to run this file
// Time of creation: Tue Aug 09 16:50:12 2011


// Settings block
settings
	surfacetest off
	verify off
	copyonetoone off
	hddrawprocess off
	allow64kcluster off
	donothidetarget on
	copyinsteadofmove off
	bigdrives off
	compressionlevel 2
	sidafterdisk off
	sidafterpartition off
	defaultsidchanger on
	nodellabel off
	timeshift 0
	oemcodepage 850
	timezone 20
	langnumber 17
	slavecfg off
	notforslave off
	enablerestart on
	enablevirtualdb on
	autoconverttofat32 on
	sidparams ""
	bootcdiso ".\..\ISO\bootcd.iso"
	hotbackup lockimpossible
	tempdrive C
	vss2hbswitch on
	vssattempts 3
	vsstimeout 120
endsettings

// Turn off confirmation
confirm off

// Restore
img = "E:/New folder/WXPV3_1.pbf"
select disk 0
delete all
select image all
options
	autoresize
	adaptive
restore

// Check for errors
call check_error

// Apply all scheduled operations
apply all

// Check for errors
call check_error

// Exiting
// exit(0)

// Function for checking error
check_error:
	if (errorcode(1) != 0)
	then
		print "Some error occured: "
		strerror(errorcode(1))
		print ""
		print "Exiting"
		print ""
		exit(errorcode(1))
	endif
endcall