The ATI Video Xpression (DirectDraw) driver is related to ATI's older graphics hardware, specifically for video capture and playback functionalities. ATI, which was later acquired by AMD, produced a variety of graphics cards and video devices, and the "Video Xpression" series was aimed at providing video capture, video editing, and enhanced video playback capabilities. The DirectDraw part of the name refers to Microsoft's DirectX technology used for rendering 2D graphics and video, and in this case, it's likely related to hardware acceleration for video processing tasks.

This driver is typically required if you're using an older ATI (or AMD) graphics card or video capture device that supports DirectDraw, such as a video editing system, multimedia device, or graphics card from the ATI Rage or ATI All-in-Wonder series, which offered video input and output features in addition to graphics rendering.