The server doesn't know what to do with a PROPFIND request. After it goes through the sequence of dispatchers, it bottoms out. Perhaps this is not the best way of handling the error. You can write your WebDAV as either a) A servlet or b) A dispatcher Writing a servlet just requires changing the line you already found in request-parsing. I will look into making this easier. Writing a dispatcher requires you to understand some undocumented features. But I can help you with this. I recommend prototyping in a servlet then turning it into a dispatcher or using a special continuation manager. <div>On 5/26/06, Vincent Kraeutler < <a href="mailto:vincent@igc.phys.chem.ethz.ch">vincent@igc.phys.chem.ethz.ch</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi, I am currently dabbling with WebDAV and use this as an excuse to try to get into lisp in general and DrScheme in particular. I've started the web-server from within DrScheme like so (require (lib " web-server.ss" "web-server")) (require (lib "configuration.ss" "web-server")) (serve (load-configuration   (string->path "/Applications/PLT Scheme v301/collects/web-server/configuration-table"                 ))) and worked my way through a bunch of example servlets, and I have to say I'm really happy with how my newbie-mistakes are nicely reported in the interactions window, so I can fix them and move on. Congrats to those involved! Moving away from basic servlets, I seem to have hit a bit of a wall. I'm trying to teach the web-server to react in some way to WebDAV requests such as PROPFIND etc. Initially, when interactively supplying PROPFIND / HTTP/1.1 or PROPFIND /servlets/test.ss HTTP/1.1 via telnet, it would immediately close the connection. This I quickly found out to be due to   (define METHOD:REGEXP     (byte-regexp #"^(GET|HEAD|POST|PUT|DELETE|TRACE) (.+) HTTP/([0-9]+)\\.([0-9]+)$")) in web-server/request-parsing.ss . Changing that to   (define METHOD:REGEXP     (byte-regexp #"^(GET|HEAD|POST|PUT|DELETE|TRACE|PROPFIND) (.+) HTTP/([0-9]+)\\.([0-9]+)$")) it now seems to be doing something for a few seconds, followed by losing the connection. I was naively hoping to get a nice long error message taking me a step further, but neither DrScheme nor the log file report anything. Is it just running in circles until it hits a timeout? Trying to backtrack the code, I have come as far as read-request (i.e. not very far ;-) ), at which point I'm losing the connection ;-). Any useful pointers or ideas to make the system more talkative would be very much appreciated.  Also, before I spend too much time on this -- any judgement by those in the know on whether trying to marry the PLT web-server with WebDAV is utter stupidity would also be very welcome. Kind regards, v. _________________________________________________   For list-related administrative tasks:   <a href="http://list.cs.brown.edu/mailman/listinfo/plt-scheme">http://list.cs.brown.edu/mailman/listinfo/plt-scheme</a> </blockquote></div> -- Jay McCarthy <<a href="mailto:jay@cs.brown.edu">jay@cs.brown.edu</a>> <a href="http://jay.makeoutcity.com/">http://jay.makeoutcity.com/</a>