Just an additional Info.
Make sure that the HTTP Task is running on your Domino Server.
You can check which tasks are running on your server by typing directly to the console, "SH SERVER".
If HTTP Task is not listed then you have to manually load it by typing, "LOAD HTTP" or you can edit your "notes.ini" and add "HTTP" on your "SERVER TASKS" entry, this will prevent you to manually load the HTTP task everytime you restart your Domino Server.
ciao!!!! X-)