As part of this PR #20224, I added the new script to one location but
didn't notice that it wasn't included in the embedded scripts directory.
This also adds an unlock script that will reset the registry values to
their original settings
#18173
Creates a detached child shell process to wipe the host. This lets the
main shell script return and tells the server the command has completed,
clearing it from the run queue.
Now shuts the host down after being wiped instead of leaving it running
without files like a zombie
