WPI is a simple to use automation program for the choice and installation of multiple programs, tweaks and scripts. No longer will you need a dozen CD's or more when doing a fresh Installation. No longer will you need multiple files when you are servicing another PC. With Windows Post-Install Wizard all that you will need is 1 or 2 CD\DVD's to fully install your PC with all of your apps, scripts, registry files or tweaks. Instead of having to re-download those apps like adobe reader, flash or updates to programs you can have them all on one disk. With WPI you can have all of them all on one disk and then have a nice interface for selecting which apps to install and after configured properly WPI will install all of them without any needed input from you. WPI also and is commonly used added to your windows installation disks. This way you can automate the complete process of Windows and program installations.