Real Alternative

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Real Alternative will allow you to play RealMedia files without having to install RealPlayer or RealOne Player from Real Networks. Supported are: RealAudio (.ra .rpm), RealMedia (.rm .ram .rmvb .rpx .smi .smil), RealText (.rt) and ReadPix (.rp). It also supports RealMedia content that is embedded in webpages. The very user-friendly installation is fully customizable, which means that you can install only those components that you want.

VirtualBox

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VirtualBox is a general-purpose full virtualizer for hardware. Targeted at server, desktop and embedded use, VirtualBox is now the only professional-quality virtualization solution that is also Open Source Software.

VirtualBox is a package of strong x86 virtualization software for enterprise as well as home use.

µTorrent

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Most of the features present in other BitTorrent clients are present in µTorrent, including bandwidth prioritization, scheduling, RSS auto-downloading and Mainline DHT (compatible with BitComet). Additionally, µTorrent supports the Protocol Encryption joint specification (compatible with Azureus 2.4.0.0 and above, BitComet 0.63 and above) and peer exchange.

µTorrent was written with efficiency in mind. Unlike many torrent clients, it does not hog valuable system resources - typically using less than 6MB of memory, allowing you to use the computer as if it weren't there at all. Additionally, the program itself is contained within a single executable less than 220 KB in size.

Various icon, toolbar graphic and status icon replacements are available, and creating your own is very simple. µTorrent also has support for localization, and with a language file present, will automatically switch to your system language. If your language isn't available, you can easily add your own, or edit other existing translations to improve them!

The developer puts in a lot of time working on features and making things more user-friendly. Releases only come out when they're ready, with no schedule pressures, so the few bugs that appear are quickly addressed and fixed.

Paint.NET

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Paint.NET is free image and photo editing software. It features an intuitive and innovative user interface with support for layers, unlimited undo, special effects, and a wide variety of useful and powerful tools. An active and growing online community provides friendly help, tutorials, and plug-ins. Version 3.35 has a new Posterize adjustment, Intersect selection mode, dramatically faster selection editing performance (add, subtract, intersect), and some small miscellaneous bug fixes.

ZoneAlarm Firewall

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ZoneAlarm is designed to protect your DSL- or cable-connected PC from hackers. This program includes four interlocking security services: a firewall, an application control, an Internet lock, and Zones. The firewall controls the door to your computer and allows only traffic you understand and initiate. The Internet lock blocks Internet traffic while your computer is unattended or while you're not using the Internet, and it can be activated automatically with your computer's screensaver or after a set period of inactivity. Zones monitor all activity on your computer and alert you when a new application attempts to access the Internet. Version 7.0.483 is a bug fixing release.

Note:ZoneAlarm is free for individual and not-for-profit charitable entity use (excluding governmental entities and educational institutions). Advanced features are available.

Online Armor Free

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Online Armor Personal Firewall--the first free firewall to pass 100% of leak tests out of the box. Online Armor is a powerful personal firewall, with HIPS and a host of other security features to keep your PC clear of infections and running smoothly. Online Armor is designed to be easy to use for beginners and offers powerful performance.

FlashDevelop

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Download FlashDevelop2.0.2 Final
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FlashDevelop is a highly customizable lightweight script editor with extended support for class based languages.
FlashDevelop is a highly customizable lightweight script editor with extended support for class based languages. 

Although the program is designed mostly for ActionScript, other languages can be implemented quite easily too.

FlashDevelop is also very quick and simple to setup and easy-to-use as an external editor for the Flash IDE or as a complete open source development environment.