Many third-party AutoCAD plugins (vertical add-ons for architecture, civil, MEP) hook into the vl-load-com function. If a third-party plugin loads a different version of a shared library (like MFC or C++ runtimes), it can cause vl.crx to fail.
Running an unpatched version of AutoCAD can leave known memory leaks and stability bugs unresolved. autocad exception in vl.crx arx command
If the crash occurs immediately upon launching a specific macro or command, a third-party add-in is likely the culprit. Open AutoCAD and type OPTIONS to open the dialog box. Go to the tab. Expand Trusted Locations . autocad exception in vl.crx arx command