Bitvise SSH Server (WinSSHD) - WinSSHD is our SSH server for all Windows NT-series operating systems.
socat - socat is a relay for bidirectional data transfer between two independent data channels.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
Komodia Relay - Free open source tool to perform TCP based session relay
Titan FTP Server - Windows FTP Server with SFTP and SSL. Includes events automation, host key support, and strong security.
AUTAPF - Reliable TCP and UDP port forwarding for Windows.