I've been forced (temporarily, I hope) onto a WinXP Pro laptop. I've successfully downloaded LilyPond 2.12.3.1 and Emacs 22.3. I cannot figure out how to get Emacs to recognize (much less accept as default for .ly files) lilypond-mode. If anyone out there has successfully gotten Emacs to work with lilypond-mode on WinXP and can explain the process to me, I would be grateful.