Our Printer Manager utility makes use of Printui.dll, the executable that contains the functions used by the printer configuration dialog boxes.

This Microsoft article shows all the valid parameters and some examples.

For those that are interested, Printer Manager currently (as of v2.0.0.1) uses PrintUI to display the following (with syntax used)

add printer (wizard) - rundll32 printui.dll PrintUIEntry /il
add driver (wizard) - rundll32 printui.dll PrintUIEntry /id
add network printer (wizard) -- rundll32 printui.dll PrintUIEntry /ip
print server properties - rundll32 printui.dll PrintUIEntry /s
print server properties (drivers) - rundll32 printui.dll PrintUIEntry /s /t2