This application will work for your local files by tweaking Windows settings for the files or folders you specify. It does not have the ability to work remotely on a webserver since it's a Windows application. For servers you might need to protect your folder from accessing using the language code implemented on your website.
The process is simple, actually. Create a new file and upload it to your website with the following name
.htaccess. Add on one line
Options -Indexes then save the file and upload it to the place where your folder with content is located. When that directory is browser, the indexing or listing will be prohibited.