WinReducer EX is used to create custom, lightweight Windows images (post-install or pre-install). Version "110" might refer to a build number or a compatibility version for Windows 10 version 20H2/21H1 (build 19042–19043 range, where 110 could be part of the build string).
It seems you’re asking about a in WinReducer EX 110 (likely a specific version of the popular Windows customization tool, WinReducer ). winreducer ex 110