Whats the oldest piece of software you flatly refuse to give up

[CMPunk88]

Everyone's got that one program that's technically ancient by tech standards but still gets used religiously. Newer alternatives exist, sometimes objectively better ones, and you still won't switch. There's something oddly comforting about software you've used for years knowing exactly where every button lives

Could be an old image editor, a notes app from a decade ago, or some tiny utility nobody else has heard of. Doesn't matter how outdated it looks, if it still does the job perfectly there's no reason to abandon it. Familiarity is honestly underrated when it comes to software choices

So what's yours, and how long have you been stubbornly refusing to move on. Bonus points if it's genuinely ancient

[Owen73]

A notes app from probably fifteen years ago hasn't been updated since and I still use it daily. Works perfectly fine so I've never seen the point of switching