Hi, I'm using PDFCreator as service, running 24x7 (great program BTW, thank you!).
Recently I had a problem, that the printing got stopped with no error logged whatsoever. It turned out, that the c:\Windows\Temp foder contained 100 000 files with the names "RedMon##.###". Obviously the temp name space went out of numbers, so PDFCreator was unable to work anymore. After deleting those files, the program went on ok. I am using a housekeeping script now as a workaround, but this problem needs to be addressed I think.