Hi
Herkum,
You may want to look at the windows port of
aspell.
From the
documentation:
"set_spell_cmd($command)
If the spell program has a different name or is not in your path, you can specify an alternative with set_spell_cmd. Any command that takes text from standard input and prints a list of misspelled words, one per line, to standard output will do. For example, you can use aspell -l."
You may want to take note that (apparently) for some versions of aspell it’s 'aspell list' and not 'aspell -l'
Hope this helps.
Martin