I decided to stay with a 32b application for this version of CaLIGHTs. Microsoft had discontinued support for Windows 7 a while ago but I just learned that Microsoft has made changes to Windows 11 that prevents programming environments from building applications that can be supported not only for Windows 7 but for all 32 bit operating systems. The error messages I have seen indicate that the minimum requirement is now Windows 10. I didn’t want to leave Windows 7 users or 32b operating system users out in the cold…