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Bitvise SSH Server (WinSSHD) - WinSSHD is our SSH server for all Windows NT-series operating systems.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
Win32-OpenSSH - OpenSSH implementation from the Microsoft PowerShell Developer Team
Buru SFTP Server for Windows - Lightweight SFTP / SCP / SSH Server for Windows.
Kpym - An SSH server for windows.
CompleteFTP by EnterpriseDT - CompleteFTP is a secure FTPS and SFTP server for Windows.