Print Wizard Personal Edition includes the basic of the user interface, the Print Wizard engine and the Print Wizard DLL. It does not support any remote or despool Print Wizard or Windows services.
The Service Edition is designed for those PCs that will be receiving print jobs from remote locations or despooling print jobs from a specific remote or local directory. Print Wizard Service Edition supports the Despool, FTPDespool, Listen and LPD protocols.
The demo version of Print Wizard includes all capabilities. If you have been working with the demo version and are ready to order, and you're wondering which version you need, the test is simple: if you're running a service, you need Service Edition.