Download of npNots 1.0 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. NpNots belongs to System Utilities. This software is an intellectual property of npNots (David Esperalta). The most popular version among the program users is 1.0.
From the developer:
This plug-in monitors changes in the Windows Shell and notifies your publication. This includes whether files and folders are being modified, created, renamed, or deleted, drives being added or removed, media being inserted or removed from removable media drives, and more. You can create one or more object instances.
You may want to check out more software, such as Events notification plugin, Smart Unfold For AutoCAD or Bumpgen, which might be similar to npNots.