The pipe name could not be obtained - when using ASP.NET Impersona   

I have a web application written in VS2008, trying to use a WCF service 
running on a console. The service is running as me - the person logged in, 
while the web application is impersonating an administrator user on the 
windows 2003 server. I notice I get the below error whenever trying to make 
the WCF call using impersonation. It works if I make it false.

System.ServiceModel.EndpointNotFoundException: There was no endpoint 
listening at net.pipe://127.0.0.1/AddressGlobalizer that could accept the 
message. This is often caused by an incorrect address or SOAP action. See 
InnerException, if present, for more details. ---> 
System.ServiceModel.AddressAccessDeniedException: The pipe name could not be 
obtained for net.pipe://127.0.0.1/AddressGlobalizer. ---> 
System.IO.PipeException: The pipe name could not be obtained for the pipe 
URI: Access is denied. (5, 0x5) --- End of inner exception stack trace --- at 
System.ServiceModel.Channels.PipeSharedMemory.Open(String sharedMemoryName, 
Uri pipeUri) at 
System.ServiceModel.Channels.PipeConnectionInitiator.GetPipeName(Uri uri) --- 
End of inner exception stack trace --- Server stack trace: at 
System.ServiceModel.Channels.PipeConnectionInitiator.GetPipeName(Uri uri) at 
System.ServiceModel.Channels.NamedPipeConnectionPoolRegistry.NamedPipeConnectionPool.GetPoolKey(EndpointAddr	
Source	 :	 mscorlib	
Message	 :	 There was no endpoint listening at 
net.pipe://127.0.0.1/AddressGlobalizer that could accept the message. This is 
often caused by an incorrect address or SOAP action. See InnerException, if 
present, for more details.	
Stack Trace	 :	 Server stack trace: at 
System.ServiceModel.Channels.PipeConnectionInitiator.GetPipeName(Uri uri) at 
System.ServiceModel.Channels.NamedPipeConnectionPoolRegistry.NamedPipeConnectionPool.GetPoolKey(EndpointAddress 
address, Uri via) at 
System.ServiceModel.Channels.CommunicationPool`2.TakeConnection(EndpointAddress 
address, Uri via, TimeSpan timeout, TKey& key) at 
System.ServiceModel.Channels.ConnectionPoolHelper.TakeConnection(TimeSpan 
timeout) at 
System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan 
timeout) at 
System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan 
timeout) at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan 
timeout) at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan 
timeout) at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan 
timeout) at 
System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel 
channel, TimeSpan timeout) at 
System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan 
timeout, CallOnceManager cascade) at 
System.ServiceModel.Channels.ServiceChannel.EnsureOpened(TimeSpan timeout) at 
System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean 
oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, 
TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String 
action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, 
Object[] outs) at 
System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage 
methodCall, ProxyOperationRuntime operation) at 
System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message) 
Exception rethrown at [0]: at 
System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage 
reqMsg, IMessage retMsg) at 
System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgD	
Inner Exception	 :	 System.ServiceModel.AddressAccessDeniedException: The 
pipe name could not be obtained for net.pipe://127.0.0.1/AddressGlobalizer. 
---> System.IO.PipeException: The pipe name could not be obtained for the 
pipe URI: Access is denied. (5, 0x5) --- End of inner exception stack trace 
--- at System.ServiceModel.Channels.PipeSharedMemory.Open(String 
sharedMemoryName, Uri pipeUri) at 
System.ServiceModel.Channels.PipeConnectionInitiator.GetPipeName(Uri uri)

date: Mon, 23 Jun 2008 16:30:00 -0700   author:   Vijay