Free
The Carbon Footprint Calculator
Learn to calculate your CO2
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Efficient Conversion Tool for Windows Users
A free program for windows
Efficient Curve Fitting Tool for Windows
A full version game for windows, by VGstudio
Convert in all the major currencies
User friendly utility to easily convert between 449 units of measurement
A full version app for Windows, by acethinker.
Eufloria: A Free Productivity Tool for Windows
Efficient Matrix Calculations with Luckhan Matrix Calculator
Evaluate Your Gaming Setup with Street Fighter IV Benchmark
Powerful .NET decompiler
Efficient FLV File Extraction Tool
Free alternative to Microsoft Office
Scientific Calculator: Mathematics at your fingertips
A free and useful PDF converter for Windows
Trial version of a basic converter
Free and Open Source Alternative to Macsyma or Maple