Hi. I am using Windows Server 2003 & PDF Creator 1.2.1 (it's called from an Access database). It won't work when Windows Firewall is turned on. I added PDFCreator.exe & PDFSpool.exe as well as MSACCESS.EXE to the exceptions list, but it still wont work (unless I turn off Windows Firewall). Does anyone know what specific TCP or UDP port(s) that PDF Creator uses? Has this happened to anyone else? Thank you.