IRIS doesn't bundle its own ssh server. Unless your host platform offers ssh (not common on Windows) there'll be nothing for your ssh client to connect to.

For IRIS on Windows you have the option of enabling the %Service_Telnet service and connecting using telnet rather than ssh. You can optionally add extra security to this by configuring it to use TLS.

But as you're talking about localhost why not simply launch Terminal off your IRIS launcher in you Windows System Tray?