Appnimi Zip Password Locker

Appnimi Zip Password Locker is a speedy and very easy-to-use program that allows you to add password protection to your ZIP archives. It doesn't need any compression tool installed and can be handled by anyone.

Pay attention to the installer

The setup operation doesn't take a long time to finish. However, since it's ad-supported, Appnimi Zip Password Locker offers to download and install some additional tools that it doesn't actually need to function normally.
These offers can be declined to make a clean installation, though, provided that you don't rush through the wizard steps.

Straightforward interface and options

Packed in a user-friendly interface made from a single window that shows all options available, the application lets you indicate a ZIP archive by specifying its file path using the traditional file browser.
All you have to do is establish the password and click a button to apply it. You should know that Appnimi Zip Password Locker doesn't feature an undo button, so it cannot remove the key once it's set. This means that you have to extract the files and add them to a new unprotected archive instead.

Evaluation and conclusion

The tool didn't put a strain on the overall performance of the machine in our tests, since it needed low CPU and RAM to work properly. On the other hand, it froze a couple of times while we were attempting to lock an archive, forcing us to terminate its process and restart the app.
We must also take into account the fact that Appnimi Zip Password Locker hasn't been updated for a long time, and it likely has compatibility issues with newer Windows versions.