Computer program`s e.g. java, undesired execution controlling and prohibiting method for Microsoft DOS operating system, involves calculating valid extension required to execute files using private key known only by operating system of user

摘要

The method involves calculating valid extension required for executing files on a computer using a private key of a user. The key is only known by an operating system of the user and cannot be found without having access to the computer so that search programs cannot be executed for having access to file names. Desired software is implemented using an installation module subjected to a control that modifies extensions of the programs.