Windows ssh client recommendations (for yast2 use)

I ssh from a windows box into SuSE boxes all the time. In general it works great. Running yast2 in terminal mode is the one exception. Does anyone know a ssh client (and terminal emulation) that lets the alt-x key sequences work and draws the screen graphics correctly? I mind it being commercial, but OSS would be better. Currently I use cygwin and ssh when I want to run yast2, but the graphics show as funky chars. I use "SecureCRT" in vt100 mode for my normal ssh access, but I don't know how to get alt-x type of keystrokes to be sent. TIA Greg -- Greg Freemyer