I want to be able to download dynamic content (coming from a relational database) via Zope as a file. I do this by calling RESPONSE.write() which works fine but it is very slow When I download a greater package with an External method (on the bottom of the mail), I just get downloads of 3 to 12 KB/s in my LAN and even locally on the same machine. Also the thread sending the data uses >90% CPU. Can anybody tell me why it is so slow or how I can speed that up? I am using a standalone Zope 2.2.0 with standard ZServer Thanks in advance Philipp Auersperg ---------------------------- def streamTest(self,RESPONSE): RESPONSE.setHeader('Content-Type','text/richtext') i=0 while i< 100000: RESPONSE.write('hallo') i=i+1 RESPONSE.close()