I work near, but not directly on, an application that's lasted about 20 years so far. It's still actively maintained, and still making money. It's mostly writ

I work near, but not directly on, an application that's lasted about 20 years so far. It's still actively maintained, and still making money. It's mostly written in vb6 and classic asp. Yes. Some applications far outside the hype cycle can last decades.