content: (* http://hints.macworld.com/article.php?story=20110124224322791 contributed by SOX *)
  try
  	set theResult to do shell script "
  		if sudo launchctl list | grep com.crashplan.engine; then
  			sudo launchctl stop com.crashplan.engine && sudo launchctl unload /Library/LaunchDaemons/com.crashplan.engine.plist
  		else
  			sudo launchctl load /Library/LaunchDaemons/com.crashplan.engine.plist && sudo launchctl start com.crashplan.engine
  		fi
  		" with administrator privileges
  	
  	if theResult is "" then
  		set theMessage to "CrashPlan Engine started"
  	else
  		set theMessage to "CrashPlan Engine stopped"
  	end if
  	
  	display dialog theMessage buttons "OK" with title "CrashPlan Switch" with icon note
  	
  on error theError
  	display dialog "Error: " & theError buttons "OK" with icon caution with title "CrashPlan Switch"
  end try