I've installed the latest cygwin 1.3.9 in order to use the rsync daemon. I have a setup that works fine under Solaris and basic mirroring works to my cyginw box. However when I use the rsync "-backup" option (which tells rsync to save copies of modified files, necessary for incremental backups) rsync backs up all of the files every time... When I remove the "-backup" option rsync properly transfers only the updates, but when I use it rsycn makes a full copy of the file tree into the backup dir every time, regardless. So, the effect is that you can't really use rsync for incremental backups with cygwin. I'm using Win98se and the client is a solaris box. I'll attach the client rsync command I use... I believe it's just like the example at the rsync site. Thanks, Pat