A few days ago, one of my co-workers and I had a discussion on non strongly typed BTS artifacts deployment. I just did one simple POC and proved non-GACed BTS artifacts cannot execute.

     BizTalk Administration Console provides you a option to put BizTalk artifacts (map, orchestration, pipeline, schema) into GAC or not.  When you deploy a non-signed BTS artifact into BTS application, you cannot GAC it. On BizTalk Server Administration Console you can find PublicKeyToken=null, certainly you cannot find it in GAC folder. non-strongly typed BTS artifacts can be deployed, but when you you get everything setup and run it, what happens?

     That's the error we normally get.

Event Type: Error
Event Source: BizTalk Server 2006
Event Category: BizTalk Server 2006
Event ID: 5753
Date:  2009-1-17
Time:  10:08:02
User:  N/A
Computer: CNZACKZ0001
Description:
A message received by adapter "FILE" on receive location "Receive Location_COMPUSA" with URI "D:\Test\COMPUSAX\In\*.*" is suspended.
 Error details: An output message of the component "Unknown " in receive pipeline "MSIT.EAS.ICOE.Common.Pipelines.EDI_Enrichment_Pipeline, EDI_Enrichment_Pipeline, Version=1.0.0.0, Culture=neutral, PublicKeyToken=be11e8f9ba8a903d" is suspended due to the following error:
     Unknown .
 The sequence number of the suspended message is 1. 
 MessageId:  {54685C21-08B4-4BC0-87A0-758E24D58DA6}
 InstanceID: {F145B8AA-3D41-4AC4-AA7B-36E0A73EACAB}

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Event Type: Error
Event Source: BizTalk Server 2006 EDI
Event Category: None
Event ID: 8114
Date:  2009-1-17
Time:  10:08:00
User:  N/A
Computer: CNZACKZ0001
Description:
Error encountered during parsing. The X12 transaction set with id '' contained in functional group with id '002', in interchange with id '000000002', with sender id '2149824000T    ', receiver id '081466849TEST  ' is being suspended with following errors:

Error: 1 (Miscellaneous error)
 6: Missing or invalid or duplicate Transaction set identifier 'http://MSIT.EAS.ICOE.MOVE.850ORDERS.CompUSA.850X124010#X12_00200_850'

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Hope I can find out why BTS provide this feature, what is it for and why non-GACed BTS artifacts cannot execute!