My free windows tool "RAR File Open Knife", that was tested by softonic.com a few weeks ago ("Super-fast application for RAR files"), ranks #1 this week in the category free file compression. Compared with all free and non-free tools it is right behind WinRAR and WinZip:
RAR File Open Knife (1.4MB) is a tool that opens RAR archives. As fast as possible. The program comes with short instructions in over 50 languages, the engine is highly optimized. In performance tests RAR File Open Knife was up to 11% faster than 7-Zip etc.