Some PDF to Word Converter is a free converts PDF into Word documents. It offers batch processing, a degree of customizablity for the output document, and very good overall performance. Most importantly, it is fully useable and does not require any registration or codes and does not expire within a certain time period.

SysExporter is a small tool that allows you to extract information from any application or window and export it as text, HTML, or XML files. It is designed to retrieve information from programs that do not normally allow you to simply copy/paste info, such as the files list inside a folder or zip archive, list of emails and/or contacts in an email client, registry values in the right pane of the registry editor, error message prompts, etc.

Tobu is a “freeform information organizer”, a desktop-based note taking application that allows you to use multiple tags to categorize notes of all kinds. Tobu’s use of tags allows for making multiple connections between notes, which in turn makes it possible for this app to provide versatile database-like functionality for organizing, viewing, and finding your notes quickly and easily.

Wubi is an Ubuntu Linux installer designed to be run from within a Windows environment in order to create a dual booting Windows/Ubuntu machine. Wubi is an officially supported Ubuntu installer and is open source.

Looxis Faceworx is a free 3D modeling program that can construct a textured 3D model of a person’s head out of two 2D photos (one from the front, "mugshot" style, and the other profile style from the side).

Translate.Net is a desktop-based translation tool that will translate any text from one language to another. It connects with multiple online translation engines and delivers multiple translations at once straight into your desktop.

Google Earth is a fully interactive 3D representation of the globe and (more recently) of space, with interactive representations of galaxies and constellations. Users are able to explore/navigate the virtual world and view and interact with a growing number of "layers" of information that are continuously being added and/or refined, such as 3D buildings, panoramic images of places, real-time weather information, roads, etc. Users are also able to interact with a growing number representations of well known places and monuments worldwide.

Mikogo is a free, browser-based screen sharing and remote computer access platform for Windows. It allows you to create virtual meetings/webinars where any of the participant’s screens can be shared, to define which applications can or cannot be accessed remotely, and to instantly share files with participants, all without the need to configure firewalls, ports, and routers etc.

Kerkythea is a free multiplatform standalone rendering software that can be used to create photorealistic image renderings using physically accurate materials and lighting when integrated with Blender, SketchUp, Wings3D, 3ds Max, Silo and any program that exports files in OBJ and 3DS formats.

Lingoes is a free program that makes a wide range of translation and language reference tools available at your fingertips, enabling you to access these globally from any application to perform word lookups, text translation and pronunciation of words in over 60 languages, including English, French, German, Spanish, Russian, Chinese, Japanese, Korean, Italian, Portuguese, and others.

DocShield is a program that runs in the background and monitors files and folders that you specify for changes. It will create compressed snapshots of your files whenever it detects any changes, enabling you to retrieve your files in case of data loss, and providing a retrievable version history of your files and/or data.