I know that a boot time virus scan is possible with the bootable cd that came with NSW 2005. You can remake the cd with new definitions if you want. You can also use the UpdateLocator function, that downloads the latest definitions to where you choose and then you browse to them via the bootable cd and tell it to use those definitions, or use the definitions that are on the cd. Might not be a 2004 NSW cd that does this though. Maybe go 2005 wise?