It has often been assumed that Windows'98 can not work with Urdu text.
However, if you are interest is only in "Urdu on the net," then it is
fairly easy to configure the FireFox browser to display Urdu text
websites. You can also write Urdu text in Google-Groups, Gmail, and
other forums. For details please check the URDU TEXT help pages at
http://www.geocities.com/urdutext/