OpenSSH is a free version of the SSH connectivity tools that technical users rely on. OpenSSH encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other attacks.
WinSSHD is our SSH server for all Windows NT-series operating systems. Supported platforms include Windows 2000, XP, 2003, Vista, 2008, and 7. Both 32-bit and 64-bit versions of Windows are supported. Even Windows NT4 is still supported by WinSSHD 4.
OpenSSH for Windows is a minimal installation of the Cygwin port of OpenSSH and related utilities to provide SSH and SCP services on the Windows platform.Discontinued
The project seems to be no longer updated. Last version, 5.3 rev2, released in February 2010 can be still downloaded from SourceForge
Whether you need file transfer or a wider range of remote access services, it takes reliable, configurable network access software to master evolving security threats and a rapidly changing business environment.