MTPuTTY 1.0 Beta – Multi-Tabbed PuTTY Released. Multi-tabbed PTY helps you to manage different PTY connections in one tabbed interface. Can automatically login the remote servers and “type” your passwords. Can run any script after login. Freezing in one PTY tab will not freeze the other ones – freezing in one PuTY tab is not freezing the other one. Native Win32 code – no need to have any libraries (like VB.NET, VB etc)
Source: https://thehackernews.com/2011/08/mtputty-10-beta-multi-tabbed-putty.html