[ww520]

Here's my .emacs setup for spell checking in Windows [1].

    (setq-default ispell-program-name "c:/Aspell/bin/aspell.exe")

For on-the-fly spell checking in various modes.

    (add-hook 'org-mode-hook (lambda() (flyspell-mode 1)) )
    (add-hook 'text-mode-hook (lambda() (flyspell-mode 1)) )

[1] http://www.emacswiki.org/emacs/AspellWindows