You're right.  That should be impossible.  Please write the conversation handles - the one you are listening on and the one in the received message into your trace.

 Thanks for your time and help.

 Question:

 I have two queues. I stated two way conversation between those queues like below.

 conversation_handle   conversation_id    conversation_group_id  is_initiator state_desc

 807C24E6-855F-DB11-963A-000F1F0C79EB 83AA46C0-4199-4EEF-8044-57FECF46C61E 817C24E6-855F-DB11-963A-000F1F0C79EB 1 CONVERSING
 837C24E6-855F-DB11-963A-000F1F0C79EB 83AA46C0-4199-4EEF-8044-57FECF46C61E 827C24E6-855F-DB11-963A-000F1F0C79EB 0 CONVERSING

 847C24E6-855F-DB11-963A-000F1F0C79EB E12D80AE-3F17-44B3-B95B-48B93F966378 857C24E6-855F-DB11-963A-000F1F0C79EB 1 CONVERSING
 877C24E6-855F-DB11-963A-000F1F0C79EB E12D80AE-3F17-44B3-B95B-48B93F966378 867C24E6-855F-DB11-963A-000F1F0C79EB 0 CONVERSING

 I sent a message on one initiator conversation handle like this out of activation procedure on the INITIATOR queue

 SEND ON CONVERSATION '807C24E6-855F-DB11-963A-000F1F0C79EB' MESSAGE TYPE [//???.com/SSB/Messages/Task]
 ('<Tasks><row acttID="1" FromsttID="135" TosttID="11" actID="157" olnID="5981" actoID="2"/></Tasks>');

 SEND ON CONVERSATION '807C24E6-855F-DB11-963A-000F1F0C79EB' MESSAGE TYPE [//???.com/SSB/Messages/Task]
 ('<Tasks><row acttID="1" FromsttID="135" TosttID="11" actID="155" olnID="5981" actoID="2"/></Tasks>');

 I have two threads waiting on respective TARGET conversation handles like

 thread1

  SET @conversation_handle = '837C24E6-855F-DB11-963A-000F1F0C79EB'

         WAITFOR (
             RECEIVE TOP(1)
                 @conversation_handle = conversation_handle
                 ,@conversation_group_id = conversation_group_id
                 ,@message_type_name = message_type_name
                 ,@Message =  CAST(message_body AS XML)
             FROM [dbo].[inResponseWorkerQueue]
             WHERE conversation_handle = @conversation_handle
         );

 and

 thread2

  SET @conversation_handle = '877C24E6-855F-DB11-963A-000F1F0C79EB'

         WAITFOR (
             RECEIVE TOP(1)
                 @conversation_handle = conversation_handle
                 ,@conversation_group_id = conversation_group_id
                 ,@message_type_name = message_type_name
                 ,@Message =  CAST(message_body AS XML)
             FROM [dbo].[inResponseWorkerQueue]
             WHERE conversation_handle = @conversation_handle
         );

 I get the thread2 receive the messages sent on 807C24E6-855F-DB11-963A-000F1F0C79EB conversation handle.

 But Why? This looks wrong.

 Any ideas?

 thanks

 Farmer

 I log with simple
         insert ##tasks (msg, task, received) values ('spSSB_utlWorkerProcessor acttID 17', @message, getdate())

Please disregard this foolish post. How could I doubt this?
I am so sorry bt I fell victim of my own logging.
I verified all this over and over and I found my issue.

It all works
GREAT!
GREAT!
GREAT!

It is all so cool! Thank you MS team.
It is a beautiful product addition to SQL 2005.
I have my gears going in overdrive with places where I would use this now.

Awesome.

 Thanks for your time and help.

 Question:

 I have two queues. I stated two way conversation between those queues like below.

 conversation_handle   conversation_id    conversation_group_id  is_initiator state_desc

 807C24E6-855F-DB11-963A-000F1F0C79EB 83AA46C0-4199-4EEF-8044-57FECF46C61E 817C24E6-855F-DB11-963A-000F1F0C79EB 1 CONVERSING
 837C24E6-855F-DB11-963A-000F1F0C79EB 83AA46C0-4199-4EEF-8044-57FECF46C61E 827C24E6-855F-DB11-963A-000F1F0C79EB 0 CONVERSING

 847C24E6-855F-DB11-963A-000F1F0C79EB E12D80AE-3F17-44B3-B95B-48B93F966378 857C24E6-855F-DB11-963A-000F1F0C79EB 1 CONVERSING
 877C24E6-855F-DB11-963A-000F1F0C79EB E12D80AE-3F17-44B3-B95B-48B93F966378 867C24E6-855F-DB11-963A-000F1F0C79EB 0 CONVERSING

 I sent a message on one initiator conversation handle like this out of activation procedure on the INITIATOR queue

 SEND ON CONVERSATION '807C24E6-855F-DB11-963A-000F1F0C79EB' MESSAGE TYPE [//???.com/SSB/Messages/Task]
 ('<Tasks><row acttID="1" FromsttID="135" TosttID="11" actID="157" olnID="5981" actoID="2"/></Tasks>');

 SEND ON CONVERSATION '807C24E6-855F-DB11-963A-000F1F0C79EB' MESSAGE TYPE [//???.com/SSB/Messages/Task]
 ('<Tasks><row acttID="1" FromsttID="135" TosttID="11" actID="155" olnID="5981" actoID="2"/></Tasks>');

 I have two threads waiting on respective TARGET conversation handles like

 thread1

  SET @conversation_handle = '837C24E6-855F-DB11-963A-000F1F0C79EB'

         WAITFOR (
             RECEIVE TOP(1)
                 @conversation_handle = conversation_handle
                 ,@conversation_group_id = conversation_group_id
                 ,@message_type_name = message_type_name
                 ,@Message =  CAST(message_body AS XML)
             FROM [dbo].[inResponseWorkerQueue]
             WHERE conversation_handle = @conversation_handle
         );

 and

 thread2

  SET @conversation_handle = '877C24E6-855F-DB11-963A-000F1F0C79EB'

         WAITFOR (
             RECEIVE TOP(1)
                 @conversation_handle = conversation_handle
                 ,@conversation_group_id = conversation_group_id
                 ,@message_type_name = message_type_name
                 ,@Message =  CAST(message_body AS XML)
             FROM [dbo].[inResponseWorkerQueue]
             WHERE conversation_handle = @conversation_handle
         );

 I get the thread2 receive the messages sent on 807C24E6-855F-DB11-963A-000F1F0C79EB conversation handle.

 But Why? This looks wrong.

 Any ideas?

 thanks

 Farmer

 I log with simple
         insert ##tasks (msg, task, received) values ('spSSB_utlWorkerProcessor acttID 17', @message, getdate())