 <i>FileSelected</i> property. By default, 
this property is set to True for all files, just set it to False for the files 
you don't want to extract.</p><h3>Progress and Cancel</h3><p>As <i>Directory</i> listings and <i>Unzip</i> operations are performed, the class
will raise the <i>Progress</i> event, which you can use to display status messages 
about the directory operation, and <i>Cancel</i> events, which allows you to stop 
the directory or unzip operation.</p><h3>Dealing With Password Protected Zips<