Script that will update/install NodeJS, NodeRed, Modbus for external installations, AOA and SE IIot. It will also try to detect if the internet connection requires proxy connection and use the value provided in the settings. For NodeJS the script will either use the version provided in settings or detect and install the latest version. If an existing NODEJS installation is installed and found it will not update unless the latest version is newer or forced in settings. The script detects AOA and SE IIot installed in the default directories. If either are installed in different directory the script settings can be modified to where the installation is installed. If the script does not detect AOA, SE IIot, or an external installation specified with DIR_EXT_NODEJS, it will install a clean installation to the specified directory. If backup setting is enable it will create backup of the current installation folder with date/time stamp. All settings are found at the top of the script and best if edited with a good text editor like Notepad++. The script requires to be run as administrator because any files modified in the Program folder requires admin rights. To run the script rename with extension ".cmd" and right mouse click "Run as administrator. For SE IIot it will rename existing node_modules folder and after installation make a symbolic link to the correctly NodeJS installation. This will fix SE IIot installation and still make the "Schneider Node-RED Service" work. For SE AOA make you manual close the AOA manager before running the script