WELL, I am suspicuous that I could be access via this service. While I am behind a Linksys firewall, and spybot SD says I am clean, I just got a little too paranoid and thought I could try Disable RPC service. I found out you could not turn it back on. (before and after a reboot)
I wish I could tell who and how a service is used by a program since it is never documented.