TreeSize Professional is a powerful and flexible harddisk space manager for Windows 98/ME/2000/XP/2003/Vista. Find out which folders are the largest on your drives and recover megabytes on your disks. TreeSize Professional shows you the size, allocated and wasted space, the number of files, 3D bar and pie charts, the last access date, the file owner and permissions, the NTFS compression rate and much more information for several folders or drives you choose. It also lets you search for old, big, temporary and dufiles. The application has an intuitive Explorer-like user interface, it is fast and multithreaded and supports Unicode and scheduled scans. You can print detailed reports or export the collected Data to Excel and to an HTML, XML or ASCII file. TreeSize Professional can be started from the context menu of every folder or drive.