The Chronos WDM Video Capture Windows driver is a software driver designed for Chronos video capture devices, which are used to capture analog video signals (e.g., composite video, S-Video, etc.) and convert them into digital signals that can be processed by a Windows computer. These devices are often used in video editing, streaming, surveillance, or archiving applications. "WDM" stands for Windows Driver Model, which is a set of standards that ensure compatibility with modern Windows operating systems (Windows XP through Windows 10/11).