Rsync on windows in my experience goes like this:

- install cygwin (or one of the rsync specific distributions of cygwin)
- fiddle about for ages trying to get it to work
- install a different rsync specific distribution of cygwin
- curse a lot
- get it just about working
- find that while it in theory works, it drops out in the middle of long rsync sessions

At least that was my experience with it five or so years ago. I gave up in the end and used smb to mount the Windows drive on my Linux box and ran rsync there.