Can I turn on computer with Chrome Remote Desktop?

If I set up a host computer for permanent remote access via Chrome Remote Desktop, when is it accessible?

Specifically:

  • Is it accessible when it has been locally logged into only by a non-administrator user?
  • Is it accessible when a user (admin or non) is locally logged in who is not the user that installed Chrome Remote Desktop in the first place?
  • Is it accessible when it has been locally logged into and then locked?
  • Is it accessible when it has been powered on but not yet logged into?
  • If not, when, after a restart, does a host computer become accessible? Is there a user-specific service which starts after a particular user logs in that enables Chrome Remote Desktop access? If so, can that service be set up such that it starts with the system (before login)?
  • Is it still accessible when it has been on during a period of time in which its external IP has changed (assuming the host computer's DNS/DHCP have properly updated)?

For the above cases, the following can be assumed:

  • Chrome Remote Desktop was installed in permanent-access mode on the host computer.
  • Chrome is not open on the host computer.
  • The host computer is always connected to a physical (Ethernet) internet connection.

I only have a Windows XP PC to play with right now, but I would like to know those details for other major OSes (Win7, Win8, OSX).