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Failed to create process mutex again?

Jun 1, 2010 12:42 AM

Hi guys


I want to configure the FMS to use the files from network folder like \\server_name\folder1

As I can understand from doc, the FMS service must run under DOMAIN account instead of Local system.

The FMS 3.5 is installed on Windows 2003 Server. When I change server Logon As DOMAIN\User1 in the Service properties and

trying to start service, it raises an error: "Failed to create process mutex".


DOMAIN\User1 is in the local administrator group. No problems with access to file system.


Do you have any idea why this error happens?

I have configured the FMSHttpd service and it works fine.


Thanks in advance for your help 

  • Currently Being Moderated
    Jun 1, 2010 7:35 AM   in reply to

    Check messages from this post: - it might be helpful for you to resolve the issue. Try out steps mentioned in messages of this post and see if it works.

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  • Currently Being Moderated
    Jun 1, 2010 10:15 PM   in reply to

    You usually get the "Failed to create process mutex" error message when user FMS running under does not have enough write permissions. Can you just cross check if you really have write permissions on file system.

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  • Currently Being Moderated
    Jun 3, 2010 10:19 AM   in reply to

    Okie doke,  no one's really going to be happy as a result of this post - so I may as well get to the bad news


    FMS on Windows isn't actively tested to change users safely


    We don't advertise this behavior for just about this reason, which is that permissions for Windows users are tricky and FMS has a lot of moving pieces.  One of them in this case is the ability to create a named system Mutex.  You can find some info about that here - it's going to be hard for you to be certain of what's going wrong because that error is particularly vague at the moment.


    I can't open a bug on this right now because that's not a supported behavior and my role here is to let know that we should look for solutions that don't involve changing the installed FMS user right now.  I'm aware of how unideal that is, and we're working on it for next version - but it's not a simple thing as you're encountering and it's not there and ready yet.


    We will want to fix the docs operation for this and go another route to the solution.  If you can send me a link to where in the docs this is advised and we'll work with docs to point out that this is currently infeasible.  Ping me offlist and we can see if there's a way to achieve what you want anyway - but changing user on FMS isn't the right one for the moment.



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  • Currently Being Moderated
    Nov 23, 2011 1:09 AM   in reply to

    I face this error only when I try to run the service as an Administrator !!!

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  • Currently Being Moderated
    Dec 25, 2013 9:16 PM   in reply to

    Even after two years of raising this problem I'm still unable to solve the error for Network Drivers.


    One option that I did have is for Mapping through SAN which simulates the SAN's Partition as a local drive. Its working fine in that case but thats not a feasible solution for small business as SAN Costs high.


    I'm very much disappointed from Flash Media Server for such a consistent bug from a long time now!

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