Hi all, we are using the ExtFile product in our ZOPE intranet project. All in all its working pretty good (just adding some blah blah sugar) but, we have problems with the caching of the external files that are used in ZOPE through this product. What happens is this: Even though the "if-modified since" attribute in the GET request of our squid proxy equals the "last-modified" attribute of the external file object in the ZOPE database, the ZServer returns a 200 OK value (and as such, the file is transimtted again, though there's no need for this, since it wasn't modified.) The correct return code of the ZServer should be 304/not modified. Since all our "normal" images (not inserted via ExtImg) are treated in this correct way, we assume that this behaviour might be related to the ExtFile code. In the "extfile.py" source, there's a section that would return a "304" return code, so it seems that the product could handle things correctly. The sad thing of cause is, that in our case it doesn't... We found the " ExtFile-1.1.3.patch3 " by shh, in which some changes were also made to the handling of the "if-modified-since" handling (or so it sees). Unfortuneatly we could not use the patch on our productive Windows NT installation of zope, it simply doesn't seem to work. Well, after a long day of tracking down the problem I'm rather frustrated... and so I'm asking you for help. Maybe the problem is known (or the mistake we have in our setup) is known and you could provide us an answer. Many thanks and best regards Thorsten -------------------------------------------- Thorsten Henrici Tel.: +49 (0) 7143/277-302 Fax: +49 (0) 7143/277901-302 Mail: henricit@amann-online.de Abteilung: Informationssysteme - Systemtechnik AMANN & Söhne GmbH & Co. Hauptstraße 1 D-74357 Bönnigheim --------------------------------------------