just want to thank this topic for helping me setup rsync.
also want to add:
deltacopy did not support asian characters. http://www.aboutmyip.com/AboutMyXApp/DisplayFAQ.do?fid=13
you need to replace cygwin1.dll in the deltacopy folder with the one from
http://www.okisoft.co.jp/esc/utf8-cygwin/cygwin1-dll-20-11-18.tar.bz2
note: the deltacopy i used is the one without installer DeltaCopyRaw.zip