Ask HN: What software do you miss that no longer runs on modern hardware?

Personally, I postponed upgrading my Mac to Catalina for longer than I should have because it meant giving up YummyFTP (32-bit only), which had powerful synchronization capabilities that I have not found elsewhere. I miss it.

I also oddly miss Norton Speed Disk. I got a certain OCD satisfaction from knowing that all the bytes on my hard drive were organized.

I was wondering what software other people miss being able to run.