This is a post intended to help out others who may have run into errors during the installation or post-installation running of the DTrade IBM Forms Viewer (the IBM Forms Viewer – latest version 188.8.131.52 from DDTC is here). If you’re seeing errors mentioning “Netscape_listener” or other listeners then you probably have Firefox installed on your computer and, in so doing, have prevented the Forms Viewer from running properly. As unbelievable as it is, the fix for this is to completely uninstall Firefox and then the Forms Viewer should work perfectly (meaning .xfdl forms and the attachments within them will utilize Internet Explorer).
This is an unfortunate situation for those of us who enjoy using Firefox. Of course, if you are doing ITAR work and need to prepare and submit licenses to DDTC, then you currently have no option but to uninstall Firefox so that the Forms Viewer works properly. The only other solution would be to keep Firefox installed but install Forms Viewer in a Windows virtual machine that doesn’t have Firefox installed on it. For me, this is too extreme a solution. I truly hope DDTC or IBM can fix this with the next release of the Forms Viewer.