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 service properties. Here's the list of dependencies from my various test machines:

Windows XP

  • Distributed Transaction Coordinator

  • Message Queuing access control

  • NT LM Security Support Provider

  • Reliable Multicast Protocol Driver

  • Remote Procedure Call (RPC)

  • Security Accounts Manager

Windows 2003 server

  • Message Queuing access control

  • NT LM Security Support Provider

  • Remote Procedure Call (RPC)

  • RMCAST (Pgm) Protocol Driver

  • Security Accounts Manager

Windows Vista

  • Message Queuing access control

  • Remote Procedure Call (RPC)

  • Windows Event Log

Checking that these are running isn't as easy as it seems as they don't all appear in the Services snap-in. In the dependencies list, system components will have either a cog or PC graphic. Only those with a cog will appear in the Services snap-in. Luckily, the ones that don't (Message Queuing access control and Reliable Multicast/RMCAST) are the ones you are trying to install anyway.

Note - if you get the 0X42c error in the event logs when trying to start MSMQ at a later date, you can use "NET START" to force these components to run (or at least generate an error):

  • Message Queuing access control - NET START MQAC

  • RMCAST (Pgm) Protocol Driver - NET START RMCAST

If you find the components are all running correctly then it is probably the Distributed Transaction Coordinator (DTC) that is causing the problem. MSMQ does expect this service to be available and will try to launch DTC if it is not already running. You will notice that the operating systems after Windows XP do not have a dependency on DTC for MSMQ. The change is because of problems this would create on a cluster. In that environment, MSMQ and DTC do not usually share the same resource group so it would not be unusual for the 'DTC' group to fail over without the 'MSMQ' group doing likewise. If there was a explicit dependency then MSMQ would be restarted by the service control manager whenever DTC failed. This is regarded as too disruptive so the dependency is instead an implicit one.

Note - Windows Vista cannot be clustered but the change has been maintained across the newer operating systems for consistency.

So the next step is to troubleshoot the DTC service. Usually there will be an event log entry from MSDTC explaining what the problem may be, such as described in:

You may receive error code -1073737712 when you try to start the Distributed Transaction Coordinator service in Windows XP or in Windows Server 2003

where the root cause is either a corrupt/missing MSDTC log file or a permissions issue.

Installation problems, like ogres and onions, have layers. Keep removing the layers until you find what's really causing the problem.

Comments (4)

  1. HisInfo says:

    Please provide your input on below.

    Is it compulsory to have IBM WebSphere MQ V7.0 (Client and Server) for Windows installed on server where HIS 2009 is running, to perform communication with IBM MQSeries.


  2. MSDN Archive says:

    Hi HisInfo,

    If you are referring to the MSMQ-MQSeries Bridge component of Host Integration Server then you only need the client software on the Bridge machine. You don’t need to install any additional WebSphere MQ servers just for the Bridge.  

    Or are you referring to the "BizTalk Adapter for WebSphere MQ"? According to, "BizTalk adapter for WebSphere MQ uses the IBM WebSphere MQ Base Client (non-transactional) or WebSphere MQ Transaction Extended Client APIs to communicate with remote MQSeries Queue Managers. This adapter enables BizTalk Server to communicate directly to MQSeries Queue Managers deployed on non-Windows operating systems, without needing to deploy and manage WebSphere MQ Server for Windows"

    Nothing requires WebSphere 7.0 – you should be able to get everything working with the latest 6.x.


    John Breakwell (MSFT)

  3. HisInfo says:

    Thank you John, for your prompt response.

    Yes, I am referring to the MSMQ-MQSeries Bridge component of Host Integration Server.

    Could you please elaborate some more on this – Like what is the role of WebSphere MQ from Host Integration Server side.

    Does this also required any specific configuration.

    Awaiting for your response.

  4. MSDN Archive says:

    Hi HisInfo,

    The MSMQ-MQSeries Bridge is a connector application that uses the MQSeries APIs to communicate through the WebSphere MQ client to your WebSphere MQ server. The Bridge appears as another Queue Manager to the real WebSphere QMs.

    All the information you’ll ever need is in the

    HIS2009 Messaging User’s Guide (


    John Breakwell (MSFT)

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