I just loaded my Win98SE, went to Windows Update and ran the Scanner. Came up with 3 updates missing. All previouly installed.
Downloaded and installed the Updates. Everything works as normal for me, always has despite the popular opinion that Win98SE Windows Update no longer works. I can't speak for Win98FE.
Yes there is a disclaimer that Support for Win98 has ended, but that only means "NO Further Updates" past the end of 98's LifeCycle.
What you need is PATIENCE. The scanner will take 3 to 4 minutes to progress from 0% to 33 %, a couple more to get to 66%, then more to complete.
Start the scan, go get a beer and a sandwich, make love to Wife or GF, just give it time to complete. Once you select your Updates, repeat the Above delay techniques, (Your wife or GF will be grateful by now) and restart your computer when Prompted.
As an example of how slow it is, (dependinmg on your Connection speed) it took me 47 minutes to download and install 6.2mb of updates. Thats running Win98'SE, on P4 2.4GHz w HT & 1 GB Ram on a Dialup connection. Yes I know Win98SE will not run 1GB Ram, someone forgot to tell my Motherboard about this limitation.
Point being, Windows Update is slow, (slower than Computing Net since recent Improvements.) but it still works the same as it always has.
Use this link.
There is nothing to learn from someone who already agrees with you.