It's been a really long time since I've installed anything prior to WinXP, so you could be right. What I have is a PDF containing a very long list of activation keys for various Microsoft, Adobe, Quark, Apple, other vendors' products going back to the early 1990s. There's a stack of old CDs and DVDs and floppies, most of which were converted into ISOs or similar for archiving purposes. We have some ancient hardware, including a (still working!) Apple PowerMac beige G3, complete with (still working!) floppy drive and (very, very, very dead) Iomega Zip drive, 192 MB of RAM, and an amazing 4 GB of hard drive, plus some old Apple B&W G3s, and several (still working, by some minor miracle!) Dell DeskPros (with 425 MB hard drive, 64 MB RAM, and 66 incredible megahertz of 486DX2!) (There's a reason why we still have DOS, Win 3 and NT4!) The ancient computers are attached to just as ancient hardware of various types, some of which cost upwards of $150,000 when new (one cost over $350,000!) and management insists that we get all our money's worth out of them. Tech support? What's that? No-one at Apple knows anything about G3s running OS 9.x and 10.2.x, no-one at Dell knows anything about a 'DeskPro', and some of the companies which made the hardware are dead, dead, dead!
You youngsters, have respect, those computers are older than you are!