Installation error - no printer port, printer

I run the installation program and never get a printer set up.  In SetupLog.txt I find these excerpts.  Any idea why the printer port won't create.  I had admin rights to my PC.


Install printerport:
 Portname : PDFCreator:
 Result: Error

 Printername: PDFCreator
 Drivername : PDFCreator
 Portname   : PDFCreator:
 Result: Error 1796 = The specified port is unknown