The Nikon Capture 4 software, version 4.4, is designed for digital SLR cameras like the D200. It provides photo/image/editing capabilities, allowing users to enhance and edit images captured by their Nikon cameras. The software is compatible with CD formats and offers advanced features for controlling camera settings and processing digital images. With Nikon Capture 4, users can achieve professional-level photo editing and management on their digital SLR cameras.