Message Queuing cannot send messages to a target queue after the IP address changes (833512)

RESOLUTION

Microsoft Windows 2000

Security update information

To resolve this problem, apply the security update that is discussed in the following Microsoft Knowledge Base article:

892944 MS05-017: Vulnerability in MSMQ could allow code execution

Registry information You must make changes to the registry after you apply this security update. For more information, see the "More Information" section.

Microsoft Windows XP

Service pack information

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

322389 How to obtain the latest Windows XP service pack

Registry information You must make changes to the registry after you apply this service pack. For more information, see the "More Information" section.

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.Prerequisites No prerequisites are required. Restart requirement You must restart the computer after you apply this hotfix. Registry information You must make changes to the registry after you apply this hotfix. For more information, see the "More Information" section. 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
   -------------------------------------------------------------------------------
   15-Dec-2003  17:31  5.1.0.1041   67,456  Mqac.sys
   15-Dec-2003  20:37  5.1.0.1041  130,048  Mqad.dll
   15-Dec-2003  20:37  5.1.0.1041   14,848  Mqise.dll
   15-Dec-2003  20:37  5.1.0.1041  608,256  Mqqm.dll
   15-Dec-2003  20:37  5.1.0.1041  165,888  Mqrt.dll
   15-Dec-2003  20:37  5.1.0.1041   88,576  Mqsec.dll
   15-Dec-2003  17:31  5.1.0.1041   98,816  Mqtgsvc.exe
   15-Dec-2003  20:37  5.1.0.1041  467,456  Mqutil.dll
   15-Dec-2003  19:01  5.4.1.0     429,336  Windowsxp-kb833512-x86-enu-symbols.exe
   15-Dec-2003  19:01  5.4.1.0     799,000  Windowsxp-kb833512-x86-enu.exe

MORE INFORMATION

In this scenario, there is one sender and two receivers (Receiver A and Receiver B). Receiver A connects to a network by using a virtual private network (VPN) connection. The sender sends messages successfully. Receiver A disconnects from the network. Receiver B connects to the network and obtains the IP address that was previously used by Receiver A. Receiver A may also reconnect and obtain a new IP address. The sender continues to send messages that are intended for Receiver A to the IP address that is now being used by Receiver B. The sender does not retry name resolution because the previous result was cached. Receiver B rejects the messages, but the sender continues to send messages to Receiver B. You must restart the Message Queuing service on the sender's computer to resolve the problem.

Registry changes

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

In addition to applying the appropriate update, you must set registry parameters on the receiver and on the sender. The following registry change is required on the receiver side so that the receiver will release a session if it receives a message for a non-local queue. This change means that the receiver will not return a session acknowledgement and the sender will close the session a short time later. It is standard on the sender side to close a session if an acknowledgement is not received in a specified time-out period. The sender then tries to reestablish a session. Follow these steps, and then quit Registry Editor:

Click Start, click Run, type regedit, and then click OK.
Locate and then click the following key in the registry:
HKEY_LOCAL_MACHINE\Software\Microsoft\MSMQ\Parameters
On the Edit menu, point to New, and then click REG_DWORD.
Type CloseSessionOnNonLocal, and then press ENTER.
On the Edit menu, click Modify.
Type 1, and then click OK.

You must make the following registry change to force the sender to ignore its address cache and to always perform name resolution before it establishes a session. Follow these steps, and then quit Registry Editor:

Click Start, click Run, type regedit, and then click OK.
Locate and then click the following key in the registry:
HKEY_LOCAL_MACHINE\Software\Microsoft\MSMQ\Parameters
On the Edit menu, point to New, and then click REG_DWORD.
Type ForceNameResolutionDirect, and then press ENTER.
On the Edit menu, click Modify.
Type 1, and then click OK.

This fix also adds logging for the name resolution code. This change is enabled by adding the following registry value. Follow these steps, and then quit Registry Editor:

Click Start, click Run, type regedit, and then click OK.
Locate and then click the following key in the registry:
HKEY_LOCAL_MACHINE\Software\Microsoft\MSMQ\Parameters\Debug
On the Edit menu, point to New, and then click REG_DWORD.
Type QMLogging, and then press ENTER.
On the Edit menu, click Modify.
Type 0x20, and then click OK.

The following registry parameters are also required to flush the DNS and NetBIOS name resolution caches. Otherwise, an IP in the cache may be owned by a different computer:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Netbt\Parameters\CacheTimeout = (DWORD) 0
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters\MaxCacheEntryTtlLimit = (DWORD) 1

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

824684 Description of the standard terminology that is used to describe Microsoft software updates