Express Tools or external plugins conflicting with the native LISP engine.
Only use LISP routines from trusted sources. Outdated code written for older 32-bit architecture often crashes modern 64-bit AutoCAD environments. autocad exception in vl.crx arx command
The most frequent cause is a specific Windows 10/11 beta feature that uses for language support, which often conflicts with AutoCAD's loading process. How to fix it: Express Tools or external plugins conflicting with the