There is no way I can build "on the fly" pdfs

Hi all I would like to ask you how can I generate PDFs on the fly since I tried all the stuff around. I cannot make it work even when using the examples provided. The problem seems to affect both cpdf and pdflib. The fact is that says that I cannot see the file because it isnt available. I tried to put the "inline" statement, and then the "filename=<<whatever>>.pdf". Nothing seems to work. Then I read on the list that I should put a fake PDF extension via a new argument to the URL. This didnt work either. So my ask is someone could generate pdfs on the fly? and is it a problem with IE (I'm using IE6 here) and how to solve it or make the way around the problem. Thanks a lot! Leonardo J. Belén. AFIP-AR