FIX: The BizTalk 2006 or BizTalk Server 2009 FTP adapter does not retrieve a file from an FTP server when you issue the RETR command

When you issue the RETR command to retrieve a file from an FTP server in Microsoft BizTalk Server 2006 or BizTalk Server 2009, you do not receive the file. Additionally, you receive the following error message:This problem occurs if you connect to the FTP server by using the BizTalk FTP adapter.

Additionally, if you issue the LIST command through the FTP adapter to the FTP server, the last character of the file name is truncated.

If you use a network monitor tool to watch the network traffic between the BizTalk Server computer and the FTP server, you see that the file name that the FTP server returns is correct.

This problem occurs because the FTP server returns a response from the LIST command that is not formatted as BizTalk Server expects.

BizTalk Server expects the file names that the FTP server returns to be separated or terminated by using carriage return and line feed (CRLF 0x 0D, 0x0A) characters. However, some FTP servers return a response that contains only a line feed (LF 0x0A) character to separate or terminate file names. Therefore, the file name is truncated.

When you use the FTP adapter to retrieve files from that FTP server, the FTP adapter sends the LIST command to the FTP server. Because the FTP server returns a response that contains only a line feed character, the FTP adapter retrieves an incorrect file name. Therefore, the FTP adapter uses the incorrect file name when the FTP adapter sends the RETR command to the FTP server. Therefore, BizTalk Server cannot find the file.

Cumulative updated information

For BizTalk Server 2009, the hotfix that resolves this issue is included in Cumulative Update 1 for BizTalk Server 2009.

For more information about how to obtain the cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:


 

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.

Prerequisites

You must have Microsoft BizTalk Server 2006 installed to apply this hotfix.

Restart requirement

You do not have to restart your computer after you apply this hotfix. However, you must restart the Biztalk Server Application service.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

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.

For more information about the FTP adapter, visit the following Microsoft Developer Network (MSDN) Web sites: For more information, click the following article number to view the article in the Microsoft Knowledge Base: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: