Add printer wizzard 
  rundll32 printui.dll,PrintUIEntry /il
Display printer properties of prn1 shared on srv1
  runas /user:administrator "rundll32 printui.dll,PrintUIEntry /p /n\\srv1\prn1"
RunAs Administrator - Add printer wizzard  
  runas /user:administrator "rundll32 printui.dll,PrintUIEntry /il"
  
list installed printers in W7/W8
  cscript C:\Windows\System32\Printing_Admin_Scripts\en-US\prnmngr.vbs -l
  
list installed printers in WinXP
  cscript C:\windows\system32\prnmngr.vbs -l
  
Default printer details  
  cscript C:\Windows\System32\Printing_Admin_Scripts\en-US\prnmngr.vbs -g

  Prncnfg.vbs 
  to get and set printer configurations, or to rename a printer.

  Prndrvr.vbs
  to add, delete, and list printer drivers.

  Prnjobs.vbs 
  to pause, resume, cancel, and list print jobs.

  Prnqctl.vbs 
  to print a test page, pause or resume a printer, and clear a printer queue.

  Prnmngr.vbs 
  to add, delete, and list printer connections. Prnmngr.vbs can also be used for obtaining and setting the default printer.

  Prnport.vbs 
  to add, delete, and list standard TCP/IP ports. Prnport.vbs can also be used to obtain and set the port configuration.