Why can't Windows just ship with ssh server? I don't know, but this solution uses Cygwin. Appears a bit complicated.
This is actually a windows app. Theoretically runs better. We'll see.
copSSH is an ssh server and client implementation for windows systems. It is a yet another packaging of portable openssh, cygwin, some popular utilites, plus implementation of some best practices regarding security. You can use COPSSH for remote administration of your systems or gathering remote information in a secure way.