WinZip is a System Utilities software developed by WinZip. After our trial and test, the software is proved to be official, secure and free. Here is the official description for WinZip:

MarydownEditor: WinZip 9 is the original and most popular of all Windows Zip file utilities.

Combining power and flexibility with ease of use, WinZip appeals to the entire Spectrum of data-compression users.

First-time users are comfortable with the intuitive WinZip Wizard, while power users appreciate WinZip's seamless Windows Explorer interface and choose the award-winning WinZip Classic interface for their most sophisticated compression needs.

In addition to basic zipping and unzipping, features include tight integration with Windows Explorer, support for most Internet file formats, advanced AES encryption, and much more.