If you’re using Windows 10 or 11 and attempt to install version 2.59, the installer will likely fail or hang during driver signature verification. The latest Lite version is the safer, more stable path.
If you'd like to troubleshoot a specific connection, let me know:
Easily set up RS-232 DF1 devices using the "Auto-Configure" feature.
Do not risk your industrial control system for an outdated installer. It costs nothing, it’s legal, and it includes all the functionality of version 2.59 plus modern security and OS support.
It is primarily used for programming and configuring hardware.