Vaccine 4.3 (Mac)
Source: Bill Swagerty
Vaccine is a free HyperCard virus utility written by Bill Swagerty that will inspect all the stacks on your hard drive, or any part of it, for most HyperCard viruses. Vaccine 4.3, new as of 5/6/00, has been rewritten and updated to include virus checking and eradication routines for all the recently-discovered viruses, including Antibody, Independance Day [sic], Blink, and Wormcode. Besides finding and eliminating HyperCard viruses in your stacks, it will offer to compact each stack to eliminate free space (which can reduce the "false positive" reports from other virus checkers) and it can lock your Home stack against future attacks if you choose. The Preferences card allows you full control over Vaccine's mode of operation, and reporting features have been updated as well. This is an excellent utility, and because it is HyperCard-based, it is able to use a more reliable detection method than commercial virus utilities. Vaccine will eliminate MerryXmas, all MerryXmas clones, HC 9507 (Pickle), Antibody, Blink, and Wormcode, and will check for and alert you to the presence of Independance Day. This utility is highly recommended for every stack-owner's arsenal.