After I deleted "pdfcmon.dll" from "system32" and I re-installed the free PDFCreator 3.5.1, it finally started to work slowly and correctly, just for a few days.
Now I cannot print any document to a PDF file as I always get systematically the error message "Unknown internal error 29200" and nothing else.
On old time I already got issues with the version 2.3.2 and I had to uninstall it and install the previous version 2.1.2. I am tired of uninstalling and reinstalling this bad software.
Right now I am using the free CutePDF Writer and it works quite fine.
Try it !