Hello, A client of ours using the Squid proxy server (version 2.5.STABLE6-3.4E.12.1) on Red Hat Enterprise Linux 4 is experiencing a problem when running our .NET 2.0 client application, which communicates with a .NET 2.0 web service on our server. When our client application sends an HTTP 1.1 request through the Squid proxy to our server, it receives the error: "The server committed a protocol violation. Section=ResponseStatusLine" Other clients not using Squid are not experiencing this problem. Researching this, we've found a few posts that report similar problems using .NET 2.0 web services and/or the HTTP 1.1 protocol through Squid, e.g. http://forums.asp.net/thread/1194960.aspx http://groups.google.to/group/microsoft.public.dotnet.framework.remoting /msg/dae1a8e9eed3dcf3?dmode=source http://www.squid-cache.org/mail-archive/squid-users/200606/0534.html We've also tried the suggestion in http://forums.asp.net/thread/1284850.aspx to set the useUnsafeHeaderParsing property in the client .NET application's config file to "true", but our client reports this hasn't solved the problem. Any suggestions on how we can resolve this issue would be much appreciated. Regards, Marcus Ogden Software Development QSR International www.qsrinternational.com