Hi everyone,    I've had three unrelated users call me this morning saying Vectorworks won't open and displays the error message, "There is a corrupt or missing file in the Vectorworks installation. Please reinstall Vectorworks." - Reinstalling makes no difference because the problem is caused by their antivirus blocking/quarantining the Vectorworks component, 'Plug-In Support.vlb' on-launch. This has affected (so far) Vectorworks 2019 and Vectorworks 2020.    SOLUTION: