Minimal rsync installation without need for cygwin

Give RsyncWin32 a shot.

You don't need the whole cygwin default installation.

You can install cwrsync (see http://www.itefix.no/i2/node/10650 ). Cwrsync uses just the minimal set of cygwin files needed to support rsync.

I don't know of a native rsync for windows that doesn't use at least some cygwin files.

DeltaCopy does a similar thing to cwrsync but is particularly focused on windows, and comes with a GUI. It basically packages the cygwin port of rsync together with an ultra-minimal cygwin install. It then wraps a semi-decent windows GUI around it.

Note that I've had some pretty unpleasant troubles with rsync over ssh under windows, so YMMV. Unfortunately there is nothing better for incremental backups. A native version would be nice - there have been many attempts but all have been abandoned, including the above RSyncWin32.