Dear Supporters! My ZOPE Version is already 2.5.0b2, so I was happy to find this bug in Zope's HTTP Range support fixed. This was our first real big stepping stone a few weeks ago. The actual problem could be solved by dropping the DLL "nppdf32.dll" from the ADOBE Acrobat installation path into the MS 5.0 Internet Explorer's PLUGIN-Folder. This DLL exists for Acrobat 4.0 (50KB) and 5.0 (110KB). Some older installations in my company did not install it this way. If several Explorer 5.0 directories exist, Adobe chooses only one: A trap, if IE starts from the other location. Thank you very much for the idea to visit the MS Knowledgebase. This article (Q262213) explains a solution. But there is still a different treatment of PDF's imported into the ZOPE database, if I use different dialogs. Is there a tool how to analyse the database, without reading it in a text modus? This quite solved problem nearly killed the new Intranet project, Thank You and Take Care Jürgen Treutler Mail: treutler@vaovaoweb.de