It uses NHunSpell to perform the spell checking.This version has been extended as follows: It is based largely on the spell checker extension originally created by Noah Richards, Roman Golovin, and Michael Lehenbauer. This project is a Visual Studio editor extension that checks the spelling of comments, strings, and plain text as you type or interactively with a tool window. IMPORTANT: The VS2017 and Later version of the package requires at least Visual Studio 2017 version 15.5 in order to install the package. Looking for the Visual Studio 2013/2015 version? Click here