Last year I was given a piece of pump control software to inspect, with the focus being the potential possibility to modify it. We knew it had a web interface,

Last year I was given a piece of pump control software to inspect, with the focus being the potential possibility to modify it. We knew it had a web interface, but just couldn't get it to start. The researcher who commissioned this mentioned that only one person ever managed to start that app - another researcher who used an ancient laptop with IE11 as the only browser. We took that laptop, launch IE11 with the proper URL and lo and behold - a Java Applet appeared before our eyes. All the modern browsers removed support for this technology around 2018.