This is a PPWIZARD command line switch.
The "OkCommandLine" if non-blank specifies the command line of a command which is to be executed if ppwizard successfully completes.
A typical use for this would be to display the output in a viewer or editor. This could be very handy if you wish to work in a GUI (graphical) environment such as Windows Explorer or the OS/2 WPS.
See the /OnError switch for an example and more information about some parameters you can use.