Language settings and AutoCAD

It has been brought to our attention there is another problem with AutoCAD and Windows language settings. There is a new language setting in Windows and AutoCAD does not support having it activated.


AutoCAD is unable to start. The following error message appears.

Exception in vl.crx ARX command

Exception in vl.crx ARX command


To solve this problem go to Windows settings for Region and Change system locale…

In the Region Settings dialogue you uncheck the option Beta: Use Unicode UTF-8 for worldwide language support.

Further reading

The vl.crx-problem is described in short above. In Autodesk Knowledgebase there is a full description.

Recently we wrote about AutoCAD crashing upon start with error “VLISP internal error: Unhandled exception on init”. Our solution was to rearrange the Windows language priority so that there no longer was a red warning icon showing. Autodesk posted a workaround to that problem. The same/similiar problem also have a another article in their knowledgebase with solution same as above.

In short you should be wary about changing language settings as it might break things.

Windows 10 version 1809

After updating Windows 10 to version 1809 there have been reports that AutoCAD can no longer be run. Affected AutoCAD versions are 2018 and 2019.

Upon start AutoCAD crashes with the following error message: “VLISP internal error”, “Unhandled exception on init”

To resolve the problem restore back to previous Windows version 1803.

It seems the 1809 update have been retracted for now. Should the update offer itself it is currently wise to postpone/decline.