WinZip, and most other Zip programs use identical compression code, originating from the same source. However, FreeZip has the advantage of costing you nothing. This compression/decompression utility integrates with Windows Explorer and uses file associations and context menus to zip or unzip files and subdirectories. This small program also offers file encryption features. If you want to protect your zip files with a password, download the encryption patch (freezipe.exe).