Hi, last night I realized my finger-trainnig called VaryTag :-) I talkt about it at EuroZope meeting in paris, but lost my old implementation during deleting of old zope instances. So it took me 3.5h to rewrite it from scratch. This time it works according to rfc2616 (HTTP/1.1). Its just one solution for serving multi language documents, but it works very well. I will soon localize the current zope with it as well as our websites will be localized. Its easy to use, just look at http://www.zope.org/Members/tino/Vary%20tag/readme/ Sorry for the ugly url with space, it was deep in the night ;-) Unfortunately zope.org has not installed the product already, so I was not able to give the readme in different languages .-)) Best regards Tino Wildenhain