WinRAR a file compressionapplication that is a must-have in any modern-day PC toolkit. This application not only includes support for extracting virtually any kind of file compression format, it also reduces file sizes and runs on almost any version of Windows, from 98 to Windows 7. Some will argue that WinRAR isn’t as quick as rival WinZip at compressing files. However, for the small time difference, WinRAR leaves you with a significantly smaller archived file at the end of the process. What’s more, the application allows you to save files into both .ZIP and .RAR formats, with bunches of options for speeding up compression times and reducing file sizes.