Hieroglyph is a freeware Russian language word processor written by Michael Morozov. It supports typing in both English and Russian, including using English letters to type in Russian by transliteration with automatic conversion to Russian alphabet. It also has a very good built-in Russian language spell-checker. Hieroglyph's GUI intentionally imitates the look-and-feel of Microsoft Word for maximum convenience to the users.
http://www.adelaida.net/hieroglyph/