Does anyone know exactly which files require read access under the
Windows directory for OpenSSH?

If I use NTFS to explicitly deny read access to the Windows folder for
the SSH group the client cannot connect. However, if I allow Read
access to the folder for the SSH group then the client connects BUT
also is able to read files within the Windows folder.

What I would like to do is find out the exact required files by OpenSSH
and then lock down everything else.