You can view files in an archive without extracting them first. When you view a file, PK Protect opens the file in the application associated with files of that type on your system. For example, a written document will open with a word processor such as Microsoft Word, a song plays in your media player, and a saved web page will open in your default web browser.
To view a file in an archive:
Do one of the following to open a file in the application with which it is associated on your system:
Double-click the file
Select the file and press Enter
Select the file and choose View on the toolbar
When you are done viewing the file, close it in the application.
You can make changes to a file when you view it, too. See here for information on how to modify and rezip a file so that the archived copy is updated with your changes.