often wondered if m$oft are putting these viruses in the system to test their own software and firewall as it strange that it only affect windows 2k xp home and pro all ntfs files and all that have remote access next i guess longhorn will suffer this fate?its a pity that all the updates m$oft have produced cause pc crashes thats strange also?and pcs who dont have updates on them like mine never crash thats strange also.watch this space.the sasser b is part of the netsky virus/worm my advice is it aint broke dont fix it