a client-side implementation of the rsync algorithm. It allows updating of files from a remote Web server without requiring a full download or a special remote server application.
port of the X Window System server to Windows. It shares the same source code base as Cygwin/X, but does not depend on the Cygwin environment or cygwin1.dll. Xming is a fully featured X11 server for Windows that is very simple to install and use.