TTSSH is a nice SSH client for Windows. See http://www.zip.com.au/~roca/ttssh.html for updates.
You'll need ttermp23.zip and ttssh154.zip. You'll also need an unzip program.
First install an unzip program.
Make a temporary directory and download ttermp23.zip and ttssh154.zip into it.
cd to your temporary directory, and unzip ttermp23.zip (leaving the results in the same temporary directory). Then run SETUP.EXE, and answer the questions to install Tera Term. This will install various files in a directory like "c:\program files\ttermpro".
Now you need to install ttssh. cd to the directory where the teraterm program files are installed (probably "c:\program files\ttermpro"), and unzip ttssh14.zip (leaving the results in the ttermpro directory).
Finally, install an icon that you can click on to run ttssh.exe.
There is also documentation.