In case Visilogic shows error message of "Load 12 / 9 Subscript out of range error", a possible solution is reinstalling Visilogic, following this procedure:

For Windows 7/8/8.1/10, you need to install the software while the UAC is OFF and after rebooting the PC.

Please reinstall VisiLogic as follows:

Turn OFF Windows UAC.

1. Backup your projects and delete all the files related to Unitronics installations.
2. Erase the “Unitronics VisiLogic_C” folder from- C:Program FilesUnitronics
3. Erase the “Unitronics” folder from- C:Program FilesCommon Files.
4. Perform Windows update and restart the PC
5. Log-in as administrator

Save the setup file on your desktop and make sure that the installation file is not blocked (Right click on the file>Properties) If yes, just click on the unblock button:

Install VisiLogic.

If software opened properly, Go to the properties of VisiLogic shortcut and under compatibility ticked verify the Privilege Level “Run this program as an administrator”.