From John Dalgliesh:
Agax is an antivirus application. It scans your disks and files for viruses. It also contains Defender, which is an antivirus extension. Both of these use Additives to discover and (in the case of Agax) repair infected files. Additives are stored in the folder 'Additives' in the same folder as Agax.
This version is only a maintenance update. The main changes are that the Defender Log is limited in size, and Agax works under System 7 on a 68000 Mac. There are also a number of cosmetic improvements to answer questions I am frequently asked. In particular, the message reporting files that cannot be opened is less alarming. No new antivirus features have been added.