Meadow(Multilingual enhancement to gnu Emacs with ADvantages Over Windows) is an editor written by himi. It is a port of Emacs 20 to Windows platform with numerous enhancements.
The main difference from NTEmacs is that Meadow is designed to work more closely with Windows than NTEmacs. NTEmacs rather tries to emulate X version of Emacs as much as possible. For example, to specify fonts, you have to use XLFD (yuck!) on NTEmacs but Meadow has it's own API to achieve that. For more information, see the official Meadow site.