Dell 2335dn Postscript Driver

I have installed the latest 64-bit Windows 8 print drivers for my Dell 2335dn from the 2335dn_Windows_V2.07_Applications.zip file downloaded from the Dell drivers page for this printer.   The PCL6 drivers installed and worked, but I cannot get the PS drivers to install.  

I can select the PS driver from the installation window that offers PCL or PS.   The installation appears to run to completion, ending with a screen that offers to print a test page. (Just like the PCL installation did.).   However, the test page will not print and the PS Printer icon does not show up in the list of printers on the Devices page. 

How can I get PS drivers installed for this printer?