Error message when you send a document from Commerce Gateway in Microsoft Dynamics NAV to a server that is running BizTalk Server: "Unknown error"

When you send a document from Commerce Gateway in Microsoft Dynamics NAV to a server that is running Microsoft BizTalk Server, you receive the following error message: Additionally, the status of the document in the outgoing document queue is Unsent even if the server that is running BizTalk Server receives the document.

This problem occurs in the following products:

• Microsoft Dynamics NAV 5.0
• Microsoft Dynamics NAV 4.0

This problem occurs because the TCPCom.dll file does not transfer the return message.

Note The Tcpcom.dll file is used to transfer messages between the Microsoft Dynamics NAV client and the server that is running BizTalk Server.

A supported hotfix is now available from Microsoft. The hotfix corrects the problem that is described in this article. Apply the hotfix only to systems that are experiencing this specific problem.

To resolve this problem immediately, contact your Microsoft Dynamics partner or Technical Support for Microsoft Dynamics and related products to obtain the hotfix. If you have access to online assisted support you can log on to the Microsoft Dynamics site and create a new support request. To do this, visit the following Microsoft Web site:You can also contact Technical Support for Microsoft Dynamics and related products by telephone. To do this, visit the following Microsoft Web site:

PartnersCustomersIn special cases, charges that are ordinarily incurred for support calls may be canceled if a Technical Support Professional for Microsoft Dynamics and related products determines that a specific update will resolve your problem. The usual support costs will apply to any additional support questions and issues that do not qualify for the specific update in question.

How to obtain the Microsoft Dynamics NAV hotfix or update files

After you request a Microsoft Dynamics NAV hotfix or an update file from Technical Support for Microsoft Dynamics, a hyperlink will be sent to you in an e-mail.

The e-mail will contain a hyperlink and a password. You can use the hyperlink to download the Microsoft Dynamics NAV hotfix or the update files. When you click the hyperlink, the File Download – Security Warning dialog box opens. Then, you are prompted to run, to save, or to cancel the download.

If you click Run, the files start the download and the extraction process. You must specify a folder for the new files, and then provide the password.

If you click Save, you must specify a path for saving the compressed file. When you open the file that you saved, you are prompted to specify a path for the files. You must then provide the password provided in the e-mail.

If you click Cancel, the download process stops.

How to install a Microsoft Dynamics NAV hotfix or an update file

The Microsoft Dynamics NAV platform hotfixes and updates are made available as single files. To install a Microsoft Dynamics NAV hotfix or an update, you must replace the existing Microsoft Dynamics NAV installation files with the hotfix or the update files. To do this, replace the following files by using the hotfix or the update file.

Microsoft Dynamics NAV 5.0

Microsoft Dynamics NAV 4.0

Note Typically, the Tcpcom.dll file is installed in the following directory:To replace the existing Tcpcom.dll file, follow these steps:

1. Click Start, click Run, type C:\WINDOWS\assembly\GAC_MSIL\TCPCom\[TCPCOM Version], and then click OK.
   
   Note You cannot open this folder by using Windows Explorer. You must use the command prompt to open this folder.
2. Copy the Tcpcom.dll file that you downloaded.
3. Paste the Tcpcom.dll file that you downloaded into the folder that you opened in step 1.
4. In the Confirm File Replace dialog box, click Yes to overwrite the existing Tcpcom.dll file in this folder.
5. Repeat steps 1 through 4 for each version of Microsoft Dynamics NAV if you have several versions of Microsoft Dynamics NAV installed.

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

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