You can download iSpring River 8.3.0 from our software library for free. This tool was originally developed by iSpring Solutions Inc. The software is included in Office Tools.
From the developer:
iSpring River allows you to convert your PowerPoint presentation into video, and easily upload it to YouTube in one click.
You may want to check out more software, such as iSpring Free, iSpring QuizMaker or iSpring Converter Pro, which might be related to iSpring River.