I am trying to install the protection software from Road Runner (EZ Armor). However, I have to uninstall my expired Norton anti-virus. However, in "control panel => add/remove program", when I click "Norton Antivirus", the windows (98) tells me that an error occurred and the program might have been uninstalled. So I failed. I then open the Norton myself and to to its help, there is no "uninstall" item there either. So what shall I do to uninstall it?