HTML.Redlof.A Virus

i am using win98se and notron anti virus updated May10,2003,i was on vecation, sombody else were using my computer.On my return i run the anti
virus, it is showing around 400 files has virus “HTML.Redlof.A” in folder.htt, there was no virus before vecation. try to remove it manually and automaticly, NAV says unable to repair, delete it and copy uninfeted file, PL reply Thanks