Corrected: > f-prot for linux is even better, it is free, it doesn't require a key > and also there is xfprot. More precisely F-PROT can be downloaded from here (version 4.6.8) http://www.f-prot.com/download/home_user/download_fplinux.html and XFPROT from here: http://web.tiscali.it/sharp/xfprot