How to add spell check

i have a project for .net . i use languagetool HTTP Server model .

i have four language , en fr de es

i want add spell check because default model spell check is very low

but how …i don’t unable java .so i do’t want rewrite languageTool project

and i’m not understand wiki for Hunspell how to use

so how ? ,please

thanks

Do you want to extend the existing dictionaries? Then you need to export them, add words, and turn them into binary dictionaries again. This is documented here: Spell check - LanguageTool Wiki