Controller application for remote control of multiple PowerPoint presentations simultaneously and with precise synchronization ExtraPPT Controller is a software solution that enables you to control, over a network, multiple PowerPoint presentations running on multiple PCs simultaneously and with precise synchronization. You can remotely launch PowerPoint on all PCs, load and start slide shows, control navigation between slides. There is no real limit on how many presentations you can control at the same time; it can be just two or several hundreds. Unlike other multi-screen presentation tools, with ExtraPPT Controller, the cost of controlling one, tens, or hundreds of presentations remains the same. Target PCs with PowerPoint require installation of a free ExtraPPT Node application. - Update Nov 22, 2024: bug fix release.