The first step of the installer is to copy all the files, including boot.wim and boot.sdi, to the [C:]\boot\altiris\

After the files are in place, the following commands are executed.  These commands create a boot entry for the Automation folder and place it at end of bootmgr boot options. 

C:\boot\altiris\iso\bcdedit.exe  /create {e217309d-dead-beef-a315-001372be0d02} /device /d "Symantec Deployment Solution Preboot Environment"
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d02} ramdisksdidevice partition=C:
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d02} ramdisksdipath \boot\altiris\iso\boot\boot.sdi
C:\boot\altiris\iso\bcdedit.exe  /create {e217309d-dead-beef-a315-001372be0d01} /d "Symantec Deployment Solution Preboot Environment" /application OSLOADER
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d01} device ramdisk=[C:]\boot\altiris\iso\sources\boot.wim,{e217309d-dead-beef-a315-001372be0d02}
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d01} path \windows\system32\boot\winload.exe
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d01} osdevice ramdisk=[C:]\boot\altiris\iso\sources\boot.wim,{e217309d-dead-beef-a315-001372be0d02}
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d01} systemroot \windows
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d01} winpe yes
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d01} detecthal yes
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d01} bootlog yes
C:\boot\altiris\iso\bcdedit.exe  /set {e217309d-dead-beef-a315-001372be0d01} quietboot yes
C:\boot\altiris\iso\bcdedit.exe  /displayorder {e217309d-dead-beef-a315-001372be0d01} /addlast
 

To have a machine load into the automation folder the task calls to the following command.    This can be scripted to be used by other processes if needed. 
autoutil.exe /a  

This in turn calls the command 
C:\boot\altiris\iso\bcdedit.exe  /bootsequence {e217309d-dead-beef-a315-001372be0d01}

This changes the newly added boot entry, the automation folder, to be the next boot sequence. So at next boot the machine will boot to automation folder.