When you install WinZip (version 12 or later) a default compression method is set. Unless you manually change the compression method in the Add dialog, WinZip will use this compression method each time you create a Zip file (.zip or .zipx). This default compression method will apply whether you are creating Zip files from the Classic interface or the Wizard interface. The default compression method will also be used when you create Zip files from the context menu.
Changing the default setting while installing causes WinZip to set the compression method to .Zipx: Best method. Best method compression provides significant compression improvements over legacy Zip compression. This means that Zip files you create will:
- Be the smallest size possible with WinZip
- Use advanced compression methods where applicable
- Use the .zipx extension to clearly distinguish advanced compression Zip files from Legacy Zip files (.zip)
If the Zip files that you create will be shared with others who may not have a compatible WinZip version installed, you are welcome to have them download and install the latest evaluation version of WinZip.
If installing a new build of WinZip is not acceptable for your recipient, you will likely want to configure your default compression setting to use .Zip: Legacy compression.
To change the default compression setting in the WinZip Classic interface:
- Open WinZip Classic
- Click Options, choose Configuration, and click the Miscellaneous tab
- In the bottom right of this tab uncheck or check the box next to
Create new Zip files using best compression (.zipx)
- Click OK
Related Articles:
What is the difference between "Legacy" and "Best method" compression?
How to define the files being added to a Zip file
How to activate (or re-activate) WinZip's shell extension
A quick example of how to zip files with WinZip
Is WinZip compatible with older versions of WinZip and other Zip file utilities?
