Win98 and WinME have been officially abbandoned by microsoft a year ago.
Therefor security companies, driver writers and all the others dropped support to it as well.
Its up to you to remain on a dead OS, but you will have to face the fact that new software more and more will become imcompatible to it and not run anymore, as it is pointless for the programmers to write 2 different OS handling (win9x kernel and real kernel) if one of them is officially out of order (win9x)
Therefor security companies, driver writers and all the others dropped support to it as well.
Its up to you to remain on a dead OS, but you will have to face the fact that new software more and more will become imcompatible to it and not run anymore, as it is pointless for the programmers to write 2 different OS handling (win9x kernel and real kernel) if one of them is officially out of order (win9x)