The "Save as DAISY" Add-In for Microsoft Word is a collaborative standards-based development project initiated in 2007 by the DAISY Consortium and Microsoft. It was initially developed by Sonata Software (versions 1.x), then further developed by Intergen (up to version 2.5.5.1).
The code available in this GitHub project has been initially copied from its original location on SourceForge as the openxml-daisy project.
The project is being updated to build with visual studio 2019, using the dotnet4 plugin and the wix toolser in its version 3.11.