Problem with PDFCreator 1.7.3 as no-administrator user - Windows XP italiano

I installed pdf creator 1.7.3 and I had no problem using it ad admin, but when I use it as no-admin it did’t run and this error occur

PDFCreator - www.pdfforge.org
----------------------------------------------------------------------
Errorprotocol
----------------------------------------------------------------------
PDFCreator 1.7.3 - Error message
----------------------------------------------------------------------
ERROR DESCRIPTION:
          Error-Nr:    339 (Il componente ‘mscomct2.ocx’ o una delle relative dipendenze non sono registrati correttamente. Un file non è stato trovato o non è valido.)
          Modul:    frmMain
          Procedure:    CheckForPrinting
          Line:         50540
          Date/Time:    09-24-2014 / 23:38:42
----------------------------------------------------------------------
CALLSTACK:
----------------------------------------------------------------------
SYSTEMINFO:
 Windows XP
  [5.1 Build 2600 (Service Pack 3)]
----------------------------------------

I also try to register the .ocx file, but nothing change, when I am not admin the pdfcretor stop and the same errro occur

what can I do ?
thank you
E.

Any help for me ?