The About Box dialog is accesible by clicking on pptXTREME > Import/Export > About from the PowerPoint® Menu Bar.

 

This dialog gives you all the pertinent information regarding your installation of Import/Export, including your registration code or how many uses are left on your trial version (if you have not registered).  

 

You can click the Buy Now button to purchase a registration code at any time.

 

If you wish to uninstall Import/Export, it can be done from this About box by clicking on Uninstall.  

Click here for more information on uninstalling Import/Export.