Messages may not be transmitted correctly when you configure a side-by-side installation of Message Queuing and MSMQT (873385)

CAUSE

This problem may occur when all the following conditions are true:

You have configured both Message Queuing and MSMQT in a side-by-side installation on the same computer.
A message is sent from both the local computer that is running Message Queuing and MSMQT to a remote server that is also configured with either Message Queuing or MSMQT.

When this problem occurs, neither Message Queuing nor MSMQT bind to the correct IP address on the outgoing sockets. This causes both Message Queuing and MSMQT to communicate with the same remote server. When the remote server transmits the acknowledgement packets, the packets may be returned to an incorrect location on the local server. A time delay that may exceed the timeout values for a message transmission may occur, causing a message transmission failure.

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft BizTalk Server 2004. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

888751 How to obtain the latest BizTalk Server 2004 service pack

Hotfix information

Prerequisites

You must also install the hotfix that is described in the following Microsoft Knowledge Base article to correct this issue:

873322 FIX: You may not be able to send a message by using Message Queuing Transport in a side-by-side installation of Message Queuing and Message Queuing Transport in BizTalk Server 2004

Restart requirement

You do not have to restart your computer after you install this hotfix.

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 tool in Control Panel.

   Date          Time    Version      Size      File name
   --------------------------------------------------------
   22-Jul-2004   19:37   3.0.5323.0   303,616   Msmqt.dll 
   22-Jul-2004   19:36   3.0.5323.0   159,744   Msmqtn.dll

Note Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.