Unlike many other PuTTY alternatives, mRemoteNG is actually open source, just like PuTTY! That means you can inspect the source code yourself or even create your own fork — you can alter it as you wish.

If you’re looking for a terminal emulator that supports both Windows and MacOS, Emtec has a client that provides modern terminal session features for both platforms. It is relatively a new utility which however is based on Terminus and boasts a great deal of customization features. In addition to SSH, mRemoteNG supports Remote Desktop Protocol, Virtual Network Computing, Telnet, Remote Login, HTTP, HTTPS, and other protocols. The initial configuration window contains a lot of options. Most of them are not needed in normal use. PortIf someone offers to do some of this work for us, we might consider it, but unless that happens I can't see VB integration being anywhere other than the very bottom of our priority list. It offers support to a variety of network protocols like SSH, Telnet, Serial, SCP, SFTP, etc. PuTTY also comes with a command-line tool called “ psftp” which can securely transfer files between computers over an SSH connection. It is compatible to use in most of the operating systems (for both 32 bit and 64 bit). I hope so, but given that ports aren't really progressing very fast even on systems the developers do already know how to program for, it might be a long time before any of us get round to learning a new system and doing the port for that. This happens because the firewall software has a timeout, closes the connection after that timer runs out, and leads to the Software caused connection abort error in PuTTY. Probably your best bet is to use Plink, the command-line connection tool. If you can start Plink as a second Windows process, and arrange for your primary process to be able to send data to the Plink process, and receive data from it, through pipes, then you should be able to make SSH connections from your program.

SmarTTY is also one of the best SSH clients for Windows. It is my second favorite after MobaXterm and a solid PuTTY replacement. And best of all, it is free to use.MobaXterm supports X server, remote desktop protocols like RDP and Xdmcp, and popular remote terminal protocols like SSH, telnet, and Mosh. If you need to handle more sessions or want to store over four macros at a time, you can opt for the professional edition. As of PuTTY 0.71, if you use Plink for an interactive SSH session, then after the login phase has finished, it will present a final interactive prompt saying ‘Access granted. Press Return to begin session’.