@Tim Ardoin, Thanks for the response. I re-downloaded the installer from the same location and trying this again did not get the security error. So perhaps my first download somehow got corrupted. One suggestion: If you published checksums (MD5, etc.) for your installer files users could verify file integrity themselves. Cheers, Tarn
Our security software gives the error that Vectorworks 2021 Installer does not have a valid digital signature. Does it need an updated certificate?