Failed Message Routing - Generic Error Description - why?

Question

Hi,
I have developed a custom pipeline component but when it throws an exception, it throws a generic exception description, as follows:
"The Message Engine encountered an error during the processing of one of or inbound messages"
I have 'Failed Message Routing' enabled on my port and an orchestration that subscribes to these failed messages.
But I'm creating my own custom error description, with information I use further down the process, this custom description gets overwritten by Biztalk somewhere after been thrown.
Is there a reason for this? And is there a way to work around this?

Answer 1

Thanks for your reply.
I'm trying to get a value from the using XPathReader
Here is a snippet of my code
Stream inboundStream = bodyPart.GetOriginalDataStream();
VirtualStream virtualStream = new VirtualStream(bufferSize, thresholdSize);
ReadOnlySeekableStream readOnlySeekableStream = new ReadOnlySeekableStream(inboundStream, virtualStream, bufferSize);
XmlTextReader xmlTextReader = new XmlTextReader(readOnlySeekableStream);
XPath.XPathCollection xPathCollection = new XPathCollection();
XPathReader xPathReader = new XPathReader(xmlTextReader, xPathCollection);
xPathCollection.Add(XpathValue);
bool ok = false;
string Value = string.Empty;
while (xPathReader.ReadUntilMatch())
if (xPathReader.Match(0) && !ok)
if (xPathReader.NodeType == XmlNodeType.Element)
xpathValue = xPathReader.ReadString();
else
Value = xPathReader.GetAttribute(xPathReader.LocalName);
ok = true;
DateTime.TryParse(Value, out myDate);
readOnlySeekableStream.Position = 0;
bodyPart.Data = readOnlySeekableStream;
if an Exception happens anywhere before this code or even during this code snippet, I get my custom error description but when the code exits the 'while statement' and if an exception happens, I get the generic error description - "The Message Engine
encountered an error during the processing of one of or inbound messages"
Does something happen the stream when it is used in XpathReader?
Thank you