Why the WiZiQ Virtual Classroom Module for Moodle?
Teachers can schedule and deliver live, online classes for courses without requiring anyone (teachers or students) to sign-up on WiZiQ.com. Moodle administrators simply need to download the module and install it on Moodle servers for teachers to use it. If you are using Moodle, it's just logical to extend the learning management system's capabilities to help teachers and students meet synchronously using the WiZiQ Virtual Classroom module.
WizIQ is a downloadable software that integrates into MS PowerPoint. This blog post is a how-to on setting up the software and using it with PPT.
I feel the ability to record/preview/re-record on each slide will be quite beneficial for students of all levels as well as those looking to learn a new language.