Good grief, man, are we to believe you are charging people money for running this web server? Do you even know where IIS keeps its logs?When you say tools, can you give me one in particular that I can install on my server to do what you were mentioning?
I take it you know what code on your server they are posting to? Have you tried doing three manual posts in quick succession? From a local browser? From a remote browser? Is anyone else using the same code successfully? etc., etc., ...
In terms of capturing network traffic, take a look at www.ethereal.com - it's a very good tool for capturing netwokr traffic, and will definitely show you what's getting through to your server and what isn't. Open source, multi-platform, just the ticket for problems like this.
regards Steve -- Meet the Python developers and your c.l.py favorites March 23-25 Come to PyCon DC 2005 http://www.pycon.org/ Steve Holden http://www.holdenweb.com/ -- http://mail.python.org/mailman/listinfo/python-list