The DVRex-RT Windows driver is a device driver for the DVRex-RT video capture card, typically used for professional video editing and capturing high-quality video signals in real-time. This card is often used in broadcasting, live streaming, or video production environments to capture video from various input sources (such as cameras, VCRs, or broadcast equipment) and stream or record it to a computer.

The DVRex-RT driver allows the capture card to interface properly with your Windows operating system, enabling applications like video editing software (e.g., Adobe Premiere, Avid Media Composer) or live streaming tools to access the video capture functionality of the card.