Cheshire-based Advanced Programming Techniques Ltd has announced a software product, Seek, which it claims can detect viruses in mainframe systems – but not, it seems, until after they have begun to wreak their insidious havoc: the product searches all the libraries in a system until it finds the bugged module and then enables the user to see which of its versions needs to be rectified, and to assess the extent of the damage by giving a cross reference of called module usage; version 1 of Seek, which can also identify the use of debug codes and options, is being offered free to any MVS user who applies before the end of the year.