Installing Over An Older Version
If you have already installed an older version of E-Stim Connect, then you will need to uninstall the older version first, and then manually remove the preference file first before installing a newer version.
To do this follow the How do I uninstall E-Stim Connect from a PC if you have a PC running Windows, or How Do I uninstall E-Stim Connect from a Mac if you are running MacOS.