You need to wrap up the use of sockets in a "withSocketsDo", as in:
server port = withSocketsDo $ do socket <- listenOn port -- etc
I seem to recall the documentation says you always need to use that, so I don't know why it works without on Linux :-) Hope this helps, Matthew -----Original Message----- From: glasgow-haskell-users-admin@haskell.org [mailto:glasgow-haskell-users-admin@haskell.org]On Behalf Of Steinitz, Dominic J Sent: Friday, February 23, 2001 11:10 AM To: glasgow-haskell-users Subject: Sockets on Windows I am was trying out sockets. These worked fine under linux. Under windows I get the following error. Does anyone know what it means and how I can fix it? I can telnet from within the cygwin window so I assume tcp/ip is running. Thanks, Dominic. administrator@DEFAULT /cygdrive/d/dom/home/socketTest $ ./server1 8000 Fail: does not exist Action: getProtocolByName Reason: no such protocol entry ---------------------------------------------------------------------------- --------------------- 21st century air travel http://www.britishairways.com