Ajax Ime
Ajax ime: web-based japanese input method
http://ajaxime.chasen.org
Blog
301 moved permanently
http://blog.greggman.com/blog/japanese_input_on_windows_xp/
Declan software
Declan's guide to installing and using microsoft's japanese ime - windows 7, windows vista, xp, 2000. declan's guide to installing and using the microsoft japanese language ime - a method for inputing japanese hiragana, katakana and kanji characters into windows applications - now including windows 7.
http://www.declan-software.com/japanese_ime/
Romaji Omzetter
Romaji conversion
http://www.mauvecloud.net/charsets/asian/fastromaji.html