Some of the TISWorks applications use some common functionality. To avoid filling up your harddisk, the functions have been grouped in a handy library.
The TISWorks Library provides a number of functions common to most TISWorks applications. If the library is not available on your system or too old a version, the TISWorks applications will not start. Either Windows itself will give a warning - in case the library is missing - or the application itself - when the version is too old.
As the development environment for Windows evolved, a new TISWorks library version was created.