PDFCreator
PDFCreator easily creates PDFs from any Windows program. Use it like a printer in Word, StarCalc or any other Windows application.
SumatraPDF
Sumatra PDF is a slim, free, open-source PDF viewer for Windows. Sumatra has a minimalistic design. Simplicity has a higher priority than a lot of features. It´s small and starts up very fast. It´s designed for portable use: it´s just one file with no external dependencies so you can easily run it from external USB drive.
Imagicon
Imagicon is a graphics utility designed to convert multiple image files from BMP, JPG or PNG image formats into any of the following image formats
Windows or OS/2 Bitmap (BMP)
Independent JPEG Group (JPG)
Portable Network Graphics (PNG)
Windows Icon (ICO)
SystemExplorer
SystemExplorer shows detailed infromation about Processes, Startups, Explorer, IE Addons, Uninstallers, Services, Drivers, Connections and Opened Files.
Dia
Dia is free open source general-purpose diagramming software, inspired by the commercial Windows program “Visio”, though more geared towards informal diagrams for casual use.
It currently has special objects to help draw entity relationship diagrams, UML diagrams, flowcharts, network diagrams, and many other diagrams. It is also possible to add support for new shapes by writing simple XML files, using a subset of SVG to draw the shape.
Dia can load and save diagrams to a custom XML format (gzipped by default, to save space), can export diagrams to a number of formats, including EPS, SVG, XFIG, WMF and PNG, and can print diagrams.
VSO Image Resizer
VSO Image resizer is a free tool that organizes your photos by shrinking their resolution or moving them within your hard drive.
K-Meleon
K-Meleon is an extremely fast, customizable, lightweight web browser for the Win32 (Windows) platform based on the Gecko layout engine (the rendering engine of Mozilla). K-Meleon is free, open source software released under the GNU General Public License.