OverCAD Dwg Compare allows you to finds differences between versions of AutoCAD drawings and displays them graphically.
Downloads: 34987 - Shareware - Download Now

View, print, plot, annotate, convert, manage DWG, DXF, DWF drawings on your PC without using AutoCAD. The software is more than a viewer; it converts DWG, DXF, DWF drawings to image formats such as JPG, works with AutoCAD DWG DXF DWF all versions.
Downloads: 34978 - Shareware - Download Now

Raster to Vector converts scanned drawings, maps and raster images (such as BMP, JPG, TIF, GIF, etc) into vector formats (such as DXF, HPGL, EMF, etc). You can scan old plans, archive drawings, or even photos and convert them into useful CAD data.
Downloads: 34101 - Shareware - Download Now

Compact Scientific Calculator 36 for scientists, engineers, teachers, and students. The calculator was designed with purpose to fit Netbooks and Notebooks with small display. Of course, the calculator can be used on laptop and desktop computers.
Downloads: 34424 - Shareware - Download Now

Advanced DWG to Image Workshop is a batch converter that allows you to convert DWG and DXF files to TIF (TIFF), JPG (JPEG), BMP, GIF and PNG without the need of AutoCAD.
Downloads: 34797 - Shareware - Download Now