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Stellarium is a open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. It is being used in planetarium projectors. Just set your coordinates and go. Default catalogue of over 600 000 stars, extra catalogues with more than 210 million stars! Asterisms and illustrations of the constellations. The planets and their satellites. Star twinkling, shooting stars, eclipse simulation. Very realistic atmosphere, sunrise and sunset.

Extremely Easy to Use. Install it and forget it. This powerful, free defragmenter works continuously, automatically and quietly in the background on your PC. Its intuitive interface makes Smart Defrag the ideal utility for complete computer dummies. Exceptionally Efficient Defragmentation. Smart Defrag has the world’s fastest defragmenting engine. It’s been specially designed for modern, large hard drives, so it eliminates long waiting times. Optimize Disk Performance. Smart Defrag doesn’t just use simple defragmentation. It also streamlines your file system, places the frequently used files and directories into the fastest area of the disk, enabling your computer to run at top speed with the most stability.

GnuCash is personal and small-business financial-accounting software. Designed to be easy to use, yet powerful and flexible, GnuCash allows you to track bank accounts, stocks, income and expenses. As quick and intuitive to use as a checkbook register, it is based on professional accounting principles to ensure balanced books and accurate reports.

Whether the answer is one or hundreds, Password Safe allows you to safely and easily create a secured and encrypted user name/password list. With Password Safe all you have to do is create and remember a single "Master Password" of your choice in order to unlock and access your entire user name/password list. Security starts with you, the user. Keeping written lists of passwords on scraps of paper, or in a text document on your desktop is unsafe and is easily viewed by prying eyes (both cyber-based and human). Using the same password over and over again across a wide spectrum of systems and web sites creates the nightmare scenario where once someone has figured out one password, they have figured out all your passwords and now have access to every part of your life (system, e-mail, retail, financial, work).

grepWin is a simple search and replace tool which can use regular expressions to do its job. This allows to do much more powerful searches and replaces. Once started, grepWin allows you to customize the search or replace in many ways. For example, you can (and maybe you should) limit the search to certain file sizes, file types, etc. Since regular expressions can sometimes get complicated, grepWin allows you to add your most used expressions to a presets list. Once you've added some presets, you can easily retrieve them again from the presets dialog.

CrystalDiskMark is a disk benchmark utility that measures performance for sequential and random reads/writes of various sizes for any storage device. It is useful for comparing the speed of both portable and local storage devices. CrystalDiskMark requires admin rights to operate.

FocusWriter is a fullscreen, distraction-free word processor designed to immerse you as much as possible in your work. The program autosaves your progress, and reloads the last files you had open to make it easy to jump back in during your next writing session, and has many other features that make it such that only one thing matters: your writing.

WinMerge is an Open Source differencing and merging tool for Windows. It can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle. WinMerge is highly useful for determining what has changed between project versions, and then merging changes between versions. It can be used as an external differencing/merging tool or as a standalone application. File compare window is basically two files opened to editor into two horizontal panes. Editing allows user to easily do small changes without need to open files to other editor or development environment. Many times it is useful to see exact differences inside lines. WinMerge can highlight different areas between lines.

RedCrab is a scientific calculator with a full screen formula editor. The mathematical expressions are not typed in a typical command line, but can be enter in an editor window similar to a piece of paper. The calculator display the result either under or next to the expression. The handling is easier than conventional calculator. The calculator's editor supports the entry of complex algebraic equations like fractions, square roots, exponents, etc. for technical and scientific applications.

SASPlanet – program designed for viewing and downloading high-resolution satellite imagery and conventional maps submitted by such services as Google Maps, DigitalGlobe, Yahoo! Maps, VirtualEarth, Gurtam, OpenStreetMap, iPhone maps, etc., but in contrast to all these services, all downloaded your card will remain on your computer, and you will be able to view them, even without connecting to the internet. In addition to satellite-based maps can work with the political landscape, the combined maps, and map the Moon and Mars.