It is simplified spell check tool orthospell installation for scite.
Based on: Urs Eberle's orthospell http://tools.diorama.ch/orthospell.html (GNU GPL v2).
download scite-spell.zip, it includes:
scite_lua\orthospell.lua
en_US.aff
en_US.dic
extman.lua
hunspell.dll
shell.dll
extract and copy above stuff to scite root folder, only needs default US English dictionary.
spell check setting in SciTEGlobal.properties or SciTEUser.properties.
# spell check
ext.lua.startup.script=$(SciteDefaultHome)\extman.lua
file.patterns.spell=*.txt;*.html;*.htm;*.tex;*.latex;*.md
F9 to Toggle Spelling, will see red underline for word, you can double check it, small pop up windows show up the possible correct word list, you click good one, will replace in scite editor.