http://www.sophos.com/downloads/
可以到上面下載3.68版的sophos,輸入基本資料即可下載,還有最新的病毒碼(IDE3.69),病毒碼sophos一個月只出一次,病毐碼更新方式如下:
For Windows NT/2000/XP :
1.Copy the IDE files to the Sophos Anti-Virus directory on your workstation (by default, C:\Program Files\Sophos SWEEP for NT).
2.At the taskbar, click Start|Programs|Sophos Anti-Virus|Sophos Anti-Virus. On the 'Options' menu click 'Purge checksums'. Click 'Yes' when asked if you want to purge the checksum files. Close Sophos Anti-Virus.
3.Reboot the computer. Sophos Anti-Virus will automatically recognise the new IDEs.