Unable to browse to WCF service: HTTP 400 bad request - asp.net

Question

I have a VS2010 MVC3 solution calling 2 WCF services. Everything works fine on my first computer. I have another computer where I installed the same OS, same VS, same SQL Server Express, Same IIS, ... I copied source code of my solution on this second computer. Everything works fine when running the solution.
BUT on this second computer:
I cannot browse to the service URL !? (1)
I cannot do a "Update service reference" !? (2)
(1) When I browse to http://localhost/PLATONServices/RequestService.svc I got a HTTP400 BAD REQUEST error.
(2) I got a THE REQUEST FAILED WITH HTTP STATUS 400: BAD REQUEST METADATE CONTAINS REFERENCE THAT CANNOT BE RESOLVED: 'http://localhost/PLATONServices/RequestService.svc'.
Any idea?
Because code source is the same on both computers and everything is OK on the first computer, the problem is somewhere else. I use IIS6 on both computers but I cannot see any differences.
I searched all day long without success.
Thanks.
UPDATE
Here is the trace of WCF:
<E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent">
<System xmlns="http://schemas.microsoft.com/2004/06/windows/eventlog/system">
<EventID>131075</EventID>
<Type>3</Type>
<SubType Name="Error">0</SubType>
<Level>2</Level>
<TimeCreated SystemTime="2012-05-13T08:33:37.1384484Z" />
<Source Name="System.ServiceModel" />
<Correlation ActivityID="{5d80ddb2-6cf8-4e65-bc9b-3f4b7b880605}" />
<Execution ProcessName="w3wp" ProcessID="5280" ThreadID="13" />
<Channel />
<Computer>THINKPAD</Computer>
</System>
<ApplicationData>
<TraceData>
<DataItem>
<TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord" Severity="Error">
<TraceIdentifier>http://msdn.microsoft.com/fr-BE/library/System.ServiceModel.Diagnostics.ThrowingException.aspx</TraceIdentifier>
<Description>Throwing an exception.</Description>
<AppDomain>/LM/W3SVC/1/ROOT/PLATONServices-2-129813716146273047</AppDomain>
<Exception>
<ExceptionType>System.ServiceModel.ProtocolException, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
<Message>There is a problem with the XML that was received from the network. See inner exception for more details.</Message>
<StackTrace>
at System.ServiceModel.Channels.HttpRequestContext.CreateMessage()
at System.ServiceModel.Channels.HttpChannelListener.HttpContextReceived(HttpRequestContext context, Action callback)
at System.ServiceModel.Activation.HostedHttpTransportManager.HttpContextReceived(HostedHttpRequestAsyncResult result)
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.HandleRequest()
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest()
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state)
at System.Runtime.IOThreadScheduler.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped)
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)
</StackTrace>
<ExceptionString>System.ServiceModel.ProtocolException: There is a problem with the XML that was received from the network. See inner exception for more details. ---> System.Xml.XmlException: The body of the message cannot be read because it is empty.
--- End of inner exception stack trace ---</ExceptionString>
<InnerException>
<ExceptionType>System.Xml.XmlException, System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
**<Message>The body of the message cannot be read because it is empty.</Message>**
<StackTrace>
at System.ServiceModel.Channels.HttpRequestContext.CreateMessage()
at System.ServiceModel.Channels.HttpChannelListener.HttpContextReceived(HttpRequestContext context, Action callback)
at System.ServiceModel.Activation.HostedHttpTransportManager.HttpContextReceived(HostedHttpRequestAsyncResult result)
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.HandleRequest()
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest()
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state)
at System.Runtime.IOThreadScheduler.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped)
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)
</StackTrace>
<ExceptionString>**System.Xml.XmlException: The body of the message cannot be read because it is empty.**</ExceptionString>
</InnerException>
</Exception>
</TraceRecord>
</DataItem>
</TraceData>
</ApplicationData>
</E2ETraceEvent>

Answer 1

Make sure the service is setup within an application as outlined in this post
WCF Service returning 400 error: The body of the message cannot be read because it is empty