I have used SuperMail 2.8h for many years. Now I have updated computers (Windows 8.1) and my old SuperMail will not install. What version do I need to get to bring in the old address files?
Unfortunately, there is no new version of the software that supports Windows 8.1. You can try a compatibility mode by right clicking the software. Select Properties > Compatibility and select Windows XP. Another way for this issue is with virtualization. Install Windows XP through VirtualBox and you should be able to operate the application.