Hi! We are using the professional version of Advanced Installer.
Our original installer was programmed with Enable signing checked, using a file from disk, signed only for modern operating systems. On the Updater page we had "Install only digitally signed update packages signed with the same certificate as the Updater" checked.
The certificate used for the original installer has since expired. We have an updated certificate which is using the same subject line as the original certificate, which we've used to sign an upgrade file. When the updater runs it reports "Error: Update installation was blocked, digital signature mismatch. Please contact technical support."
It seems like we should have signed an update package with the old certificate before it expired. That wasn't done, and can't be done now that the old certificate has expired.
Is there a way to resolve this issue so that upgrades can take place without manual interaction at each of the sites that used the original installer?