MSMQ from the plumber's mate

MSMQ is part of your business' IT plumbing which makes you the plumber and I'm your mate.

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  • Blog Post: Highlights & Top Issues for MSMQ on the Microsoft Support site

    You'd think that by now I'd know where all the web content for MSMQ was on Microsoft.com but no. Here's the page for Highlights & Top Issues . Hmmm.... "Last Review : 30 July 2009" but the KB articles referenced are all at least 3 years old. I'd best find out who owns the page and get it refreshed...
  • Blog Post: MSMQ branch missing in Computer Management

    Rob Fox has blogged today about how he resolved a problem where the MSMQ snap-in missing in MMC console . He found that re-registering the MQSNAP.DLL file did the trick. I've had a look at the support case archive and you may need to re-register ATL.DLL too first. It all depends on what the root cause...
  • Blog Post: MSDN Video covering the removal from MSMQ 5.0 of the Windows 2000 client support service

    And 3rd in the trio created for Windows 7 / Windows 2008 R2, we have: Microsoft Message Queuing (MSMQ) - Removal of Windows 2000 Client Support Service where Nancy Strickland discusses the impact of installing Windows 2008 R2 domain controllers on Windows 2000 machines running MSMQ applications...
  • Blog Post: MSDN Video demonstrating MSMQ 5.0 and SHA-2 incompatibility

    Just noticed that MSMQ is featured on Microsoft Showcase as part of the "Windows 7 - Known Incompatibilites" series. Microsoft Message Queuing (MSMQ) - SHA-2 is the default Hash Algorithm, and how to overcome it This 8 minute video, voiced by Nancy Strickland , covers the changes to the default...
  • Blog Post: "Where have my MSMQ messages gone?"

    A reasonably common question, this. It is important to note that MSMQ doesn't lose your data. There's no hole at the bottom of a queue where small messages can accidentally fall out, never to be seen again. Instead MSMQ will discard messages in certain circumstances unless told otherwise. Here...
  • Blog Post: Deleting Stale MSMQ Active Directory Objects

    [Sharing some information that comes in handy internally] If you have installed the MSMQ AD integration feature on a domain-joined machine but are unable to see public queues then you may have an orphaned MSMQ object in Active Directory. This is a common occurance in test labs where machines are reimaged...
  • Blog Post: If you're interested in solving "Insufficient Resources" problems with MSMQ ...

    then you definitely want to read these blog posts by Mark Russinovich: Pushing the Limits of Windows: Physical Memory Pushing the Limits of Windows: Virtual Memory Pushing the Limits of Windows: Paged and Nonpaged Pool Pushing the Limits of Windows: Processes and Threads Pushing the...
  • Blog Post: Message Queuing Downlevel Client Support won't work with MSMQ error code 0xC00E1001

    To test out a problem for a customer, I had to add a Windows 2000 server and MSMQ 2.0 to one of my domains. The installation of the Active Directory Integration portion failed as it could not contact the domain controller. The DC was definitely running but the "Message Queuing Downlevel Client Support...
  • Blog Post: Troubleshooting MSMQ over HTTP - nothing in the web server log files?

    If you are scratching your head because the files in the %windir%\system32\LogFiles\W3SVC1 directory have no entries for the incoming MSMQ messages then you need to tick two boxes: Open up Computer Management Navigate to: Services and Applications Internet Information Services (IIS...
  • Blog Post: "Insufficient Resources" update for troubleshooting MSMQ on Windows 2000 machines

    Back in September 2006 , I posted some copious instructions for troubleshooting " Insufficient Resources " problems. One thing I discovered this week is that the steps for measuring kernel memory will not work on Windows 2000. If you try to use WinDbg for local kernel debugging, you'll get an error...
  • Blog Post: Today's favourite command line (#3 in a series)

    Sometimes you are slaving away trying to work out why you're getting Access Denied and then you realise that it's probably all the fault of Mordac, the preventor of information services , deploying a new security policy he's devised. So today's command line is: GPRESULT /V which gives you...
  • Blog Post: 10 connection limit for MSMQ clients

    Now I have a new super PC to play with, I can try out testing that wasn't practical on my old test machine. For example, seeing what really happens when you have more than ten client machines trying to access a queue on a remote workstation machine. This limitation (10 connections) is discussed in...
  • Blog Post: Why is ICMP lumped with File and Print Sharing?

    I have some testing to do so I bring a pair of my trusty virtual machines on line. I've messed about with them a lot recently, such as pointing them at Windows Update for a few hours to receive a firehose of services packs and hotfixes, so the IP addresses need changing back (after I've found the Post...
  • Blog Post: Virtual PC doesn't seem to like huge shared folders

    I'm trying to install SQL Server 2008 and setup claimed that: "Microsoft .NET Framework 3.5 installation has failed. SQL Server 2008 Setup requires .NET Framework to be installed." which was strange as Microsoft .NET Framework 3.5 service pack 1 was in place. I repaired it, uninstalled it and...
  • Blog Post: Out of Memory (0x8007000e) installing service pack 2 for Windows Server 2008

    Initially applying the service pack on my VirtualPC machines complained about lack of disk space and I messed about for ages to free up a few vital GBs. Then the update changed its tune and reported Out of Memory (0x8007000e) without elaborating any further so I tried freeing up some more. In the end...
  • Blog Post: "Windows cannot locate the Disk Cleanup program."

    Always problems... I'm trying to free up space in my Virtual PC machines so I can apply service pack 2 for Windows Server 2008. First place to go is Disk Cleanup - usually good for a few GB. Strangly, my upgraded machines report that I no longer have the executable on the disk: I check the registry...
  • Blog Post: MSMQ and Federal Information Processing Standard (FIPS)

    The United States Government has a couple of standards that provide a benchmark for implementing cryptographic software. These are: Federal Information Processing Standard 140-1 (FIPS 140-1) which was published in January 1994, and is superceded by... Federal Information Processing Standard...
  • Blog Post: "Windows cannot access the specified device, path, or file..."

    Having compressed my virtual disks, I've moved on to upgrading the guest operating systems on my three virtual machines from Windows 2003 to Windows 2008. Seems simple enough - set up a shared folder to the source files on the host machine and run SETUP.EXE.... "Windows cannot access the specified...
  • Blog Post: MSMQ Management Pack: Subscript Out of Range

    A post today on [ Teknoglot ] reports that the MSMQ Management Pack may return "Subscript Out of Range" when trying to discover public queues on servers that don't have any. I'll see if I can repro this and raise a bug with the product group.
  • Blog Post: Error 0x42c when you try to install MSMQ

    When you try to install MSMQ, you may encounter this sort of error message: Error Code: 0x42C Error Description: The dependency service or group failed to start. On the face of it, this should just be a case of checking the usual suspects that the MSMQ service is defined as depending on in the...
  • Blog Post: "I restarted MSMQ and all my messages have vanished!"

    This is one of those horrible surprises - the system has been working fine for months; someone needs to restart the machine; everything disappears! Developers notice that Transactional messages never disappear so it must be a problem with Non-Transactional messages... The explanation is simple - the...
  • Blog Post: Having problems with MSMQ not sending or listening for Multicast messages?

    We've just found a problem with Multicasting on POSReady 2009 which I thought I would share. POSReady is an embedded implementation of Windows XP service pack 3 but the setup of components like MSMQ is different so this blog post may not necessarily be applicable to other Windows platforms. There...
  • Blog Post: Tracking down where your MSMQ messages have gone

    One thing that developers find frustrating is wasting time working out where messages have gone and having a mismatch between the transactional types of the messages and queues is a common cause. Sending to remote queues always succeeds because the sender cannot determine if the destination is transactional...
  • Blog Post: How to put an IP address into a registry DWORD value

    [[Edited 11th, 13th, 15th January, 2010]] To specify an IP address in a registry value, there are usually two ways: Type the dotted notation IP address directly (STRING values) Convert the IP address to hex (DWORD values) The dotted notation is just a convention to make life easier for...
  • Blog Post: Failing to read from remote MSMQ queues

    Sometimes you can have a problem where you can't remotely receive messages from another machine but don't know where to start troubleshooting. Normally you will get something informative back as an exception, such as: 0xC00E0025 (MQ_ERROR_ACCESS_DENIED) where perrmissions are insufficient ...
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