What can I install as a free ssh server for Windows Server 2008?
Here on this link you will find list of available SSH server for windows server 2008.
Hope this helps.
The only realistic option is OpenSSH, but it has problems with key-based authentication. FreeSSHD is terrible in regards to standards compliance. So we chose Bitvise SSH server - it has very moderate pricing for small groups.
You can do this by installing cygwin. It's an attempt to emulate basic linux functions and shell on windows.
The best free solution which is also as minimalist as realistic is this:
You do get the bare minimum of baggage from cygwin that allows ssh to start up and run, other than that it runs as a native service.
Still - as what you can do over the command line is relatively limited on windows, you'll want to tunnel RDP or something similiar over the ssh connection. Unless you are simply using it to transfer files.