Having rsync to work on Windows can be a pain without compiling it self (which is a pain anyway). If you’re looking for a nice binary, which also comes with a GUI config tool to set up an rsync server (set up as windows service) and a client (configured as scheduled task), you’ll be happy to find try DeltaCopy 🙂
Even if you’re disgusted with the GUI, it still comes with a full compiled rsync commandline program. It’s compiled through cygwin, so don’t forget to use cygwin style paths (/cygwin/c etc.)