File-Compression Tool. WinZip Computing's WinZip wins top honors for the Best File-Compression Tool in this year's voting. WinZip has a long history and strong reputation in the file-compression arena. The tool incorporates a Windows Explorer interface, drag-and-drop functionality, and support for most Internet file formats. Users can choose between the intuitive WinZip Wizard or the WinZip Classic interface to easily zip and unzip files to save storage space and reduce email-transmission time. The latest version offers Advanced Encryption Standard (AES) 128- and 256-bit encryption for tighter security, better compression ratios, and increased .zip file capacities.