> Nothing ever gets obsolete once it gains a large foothold in the enterprise space.

Lotus? Delphi?

Both still in very heavy use. In 2014, anyway, every single IBM employee had to keep a Lotus Notes window open. It was hellish.

Dunno if that's changed since Red Hat took them over.

Used Lotus notes as recently as 2010, I am pretty sure it's going strong in my megacorp former employer.

Lotus is all over in government and insurance. As a mail client it is mostly dead, but the apps live on.

There is a reason, but ain’t bc of their cloud databases...

Wordperfect was used in certain industries (legal especially i think) long after it started dying everywhere else. I don't think its an exception to this rule.

Yes but it’s dead now.

There was a post maybe two weeks from Tavis Ormandy (a tweet) that made the HN front page, about how he uses WordPerfect:

Tavis Ormandy (@taviso) Tweeted: @mkolsek Funny you should mention that, I was recently curious if there are any console word processors. I discovered there's a community who still use WordPerfect 5.1 for DOS. They kinda sold me on it, got it working in DOSEMU. https://t.co/t6j0c1G3w1

WordPerfect still has some users.

Last year we recruited an attorney from a firm that still uses WordPerfect for all their documents.

My school district still runs on ZENWorks.