WinZip 18 [Old Version] The world's #1 compression software Privacy protection you can count on WinZip goes beyond zipping and encrypting your files with built-in features for sharing to multiple cloud services, via email and on social sites. New WinZip Express Add-Ons are like adding a WinZip dialog to your everyday software. Available for Windows Explorer, Microsoft Outlook, Microsoft SharePoint and for photo management, the add-ons give you instant access to WinZip's most-used features. WinZip connects directly to Box, SkyDrive, Dropbox, Google Drive, CloudMe and now SugarSync, so you can organize all your cloud files at once.