This error typically occurs when AutoCAD encounters an unhandled exception inside the vl.crx (Visual LISP runtime extension) or an ARX command that relies on Visual LISP functions.
C:\Program Files\Autodesk\AutoCAD 2024\C:\Program Files\Autodesk\AutoCAD Civil 3D 2024\Preventing the "Exception in vl.crx ARX Command" is about maintaining a clean AutoCAD environment:
Damaged Installation: If you see a message stating "This version of AutoCAD was not installed properly," you may need to perform a Clean Uninstall and Reinstall. autocad exception in vl.crx arx command
Seek Support from Autodesk or a Professional: If none of the above steps resolve the issue, it may be necessary to seek support from Autodesk's technical support team or a professional CAD consultant. They can provide more personalized assistance and may have access to more advanced troubleshooting tools.
Load it via APPLOAD. If that works, your VL engine is fine – problem is in a specific routine. This error typically occurs when AutoCAD encounters an
Navigate to Administrative Tab: Click Region again in the new window, then switch to the Administrative tab.
If this crashes, the issue is with vl.crx itself, not your code. the issue is with vl.crx itself
Use AutoCAD's "Reset Settings to Default" or launch with: