ToolBook 3.0

Asymetrix Toolbook is an easy to use rapid application development environment for interactive applications. It is similar to HyperCard, but uses a book metaphor. ToolBook was targeted at novice programmers as well as experienced programmers that needed to create programs quickly. With ToolBook, programs are created visually, with a minimum of coding. Coding is done with OpenScript, a high-level object oriented language. It competed against other high level language environments such as Microsoft Visual Basic.

Notably, Asymetrix Learning Systems was founded in 1984 by Paul Allen after leaving Microsoft.

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Release notes

Apparently they skipped version "2.0".