PKA on OpenSSH on Cygwin

Hello all,

Quick question.  Am I correct in my understanding that private key
authentication can not be performed for any account except the account the
openssh service is run under?  I am referencing this text:

"Cygwin has some limitations with regard to PKA. PKA on the server can only
be set up on the account under which the SSHD daemon (service) is run. That
means for PKA logins, the connection will always log in as the 'sshd'
account on the remote server. If you desire access to your own account, you
will have to run 'ssh ' and enter a password, assuming you have previously
established your account on that server."

on Drew Hunts' guide to Setting up Secure Shell with Public Key
Authentication Capability on Cygwin.

Thanks in advance,
Dan