The TreeDoc program is a simple tree structured editor. It was written to be a good but simple way to have a help dialog for other programs. It is good for creating text by doing an outline and then filling it in.
The program is a simple exe. It does not need to be installed and it will run from a USB memory. The help file is assumed to be in the same folder as the exe is. The help file can even be edited with the TreeDoc editor.
The zip file that has the free version of TreeDoc can be found here: https://drive.google.com/open?id=1cW6kl70_hItdFmuW6mT-i1VW3Lug7qsQ
An open source version of TreeDoc has been released under the MIT license. The code is all C# and should compile with any version of Visual Studio or SharpeDevelop.