Please note that Cygwin contains SSH, X11 X-Windows server, and many other utilities. Now there is no need to install other SSH packages such as the ones from ssh.com, ssh.org, putty, or others, nor is there any need to use other X11 packages such as Microimages, exceed's hummingbird, etc, because Cygwin includes it all and uses the same OpenSource source code that Linux uses.