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OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
Bitvise SSH Server (WinSSHD) - WinSSHD is our SSH server for all Windows NT-series operating systems.
Dropbear SSH Server and Client - Dropbear is a relatively small SSH 2 server and client.
Titan FTP Server - Windows FTP Server with SFTP and SSL. Includes events automation, host key support, and strong security.
MobaSSH - Enhanced SSH server for Windows with Unix tools and much more
Win32-OpenSSH - OpenSSH implementation from the Microsoft PowerShell Developer Team