Here’s a short informative text about acui24.dll in AutoCAD 2023:
is recommended to remove corrupted registry keys and leftover files before reinstalling from a fresh download. exact file path
If you have third-party plugins (like custom tool palettes or legacy LISP routines), they may attempt to interface with the UI in a way that conflicts with the version 24 standard, causing the DLL to crash.
Version Identification: The "24" in the filename indicates it is associated with AutoCAD 2021 (internal version 24.0). While used in subsequent versions like AutoCAD 2023, the specific library remains part of the version 24 architecture suite.