SpaceObServer is a hard disk space manager for Windows 2000/XP/2003/Vista. A background service scans directories and stores structure and sizes in an SQL database. An Unicode enabled user interface reports space usage, wasted space, compression rate and more in tabular views, 3D bar, pie, line chars and tree maps. Tracks space usage development with prognoses. Export and print functions for all views. Highly customizable file search included.