FIX: Event ID 5720 is logged when you specify the BTAHL72XPipeline pipeline in a send port in BizTalk Server 2006 R2

In Microsoft BizTalk Server 2006 R2, you specify the BTAHL72XPipeline pipeline in a send port. When you send a message by using the send port, an event that resembles the following is logged in the Application log:

Event Type: Error
Event Source: BizTalk Server 2006
Event Category: BizTalk Server 2006
Event ID: 5720
Date: Date
Time: Time
User: N/A
Computer: ComputerName
Description:
There was a failure executing the send pipeline: "BTAHL72XPipelines.BTAHL72XSendPipeline, BTAHL72XPipelines, Version=1.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Source: "BTAHL7 2.X Assembler" Send Port: "HL7_SP" URI: "C:\Labs\HL7_Outbound\%MessageID%.txt" Reason: Specified cast is not valid.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.Note Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

After you apply this hotfix, set the MessageEncoding property of a message before you send the message to the BTAHL72XPipeline pipeline. For example, set the MessageEncoding property by using the following code. If you do not set the MessageEncoding property after you apply this hotfix, an event that resembles the following is logged:

Event Type: Error
Event Source: BizTalk Server 2006
Event Category: BizTalk Server 2006
Event ID: 5720
Date: Date
Time: Time
User: N/A
Computer: ComputerName
Description:
There was a failure executing the send pipeline: "BTAHL72XPipelines.BTAHL72XSendPipeline, BTAHL72XPipelines, Version=1.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Source: "BTAHL7 2.X Assembler" Send Port: "MLLPSendPort" URI: "localhost:11000" Reason: Object reference not set to an instance of an object.

This event differs from the event that is mentioned in the "Symptoms" section.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: