The PASS software download from PRC-Saltillo allows users to run the various augmentative/alternative communication (AAC) language configurations (i.e. Unity, UNIDAD, CoreScanner, LAMP Words for Life, WordPower, Essence) on a Windows computer. The software works the same way as the AAC tool except it does not speak aloud. The software is useful for educators to model language on a laptop or interactive whiteboard using the same AAC configuration as a learner.

The software is approved to be installed on Windows computers supported by Loudoun County Public Schools.