hsCADence is a CAD document conversion tool. It converts to/from DWG/DWF/DXF, supports six different CAD file versions (r12, r13, r14, AutoCAD 2000, 2004, 2005), exports to PDF, BMP and JPEG, and supports command line scripting and batch processing.
Increase performance by defragmenting your hard-drive. hsDefragSaver allows automated defragmentation of one or more drives. A fragmentation threshold is used to decide when to defragment. Runs as a screen-saver while your computer is idle.