If the script says that the PowerShell execution policy is restricted and to see the readme, the solution is to double click the file in the repo called FixPowerShellExecutionPolicy.reg then run the installer again.
Now with an uninstaller! (oooo, aaaah) Troubleshooting Errors After running the script, you can right click on any Smart Graphics VTZ touchpanel file or C3P xpanel file and you will see three more options for opening the file: Instance 2, Instance 3, and Instance 4. You MUST right click it and run it as Administrator otherwise it won't work.
This is the CMD file that allows you to run more than one Smart Graphics XPanel on your machine.