Welcome to tsg, doc! Do you still have a copy of 98? If so, go into the system (or system32 folder, im not totally sure for 98.) and copy the screensaver files from the folder, and put them on a removable media, i think a floppy might do the trick. Then go into the my computer c windows system32, and just drop em in there. It might work, but im not entirely sure.
This was back in the days of Windows 95/98 when 3D Maze, Mystify Your Mind, and Haunted You'll be redirected to System Preferences, where Mac OS X will ask you to install the screensaver. In the section for Desktop & Screen Saver, you'll see the Pipes screensaver included in the list on the left. Top 10 Free Screensavers 2018 for Windows 10. Screensavers have long been a part of Windows, helping prevent screen burn on CRT monitors. Screen burn is what occurred if the screen displayed the same image for a long period of time.
Next time, try posting in the windows 95/98 forum or the nt/2000/xp forum. I know its your first time, and sometimes hard to navigate. Welcome to the site and dont worry about it. There are plenty of people who have been here for years who still make huge mistakes.