TSM VM Backup + error during quiescing, error code 5, IDispatch error #8472 (0x80042318)

For a really long time I was looking for a solution for the following error, which occured during TSM Full VM Backup of some specific VMs:

“The guest OS has reported an error during quiescing. The error code was: 5 The error message was: ‘VssSyncStart’ operation failed: IDispatch error #8472 (0x80042318)”

If you are in the same situation, just try to re-register the VSS components. No reboot is required – just run the following commands (copy them into a notepad and save it in a .bat file):

cd /d %windir%\system32
net stop vss
net stop swprv
regsvr32 /s ole32.dll
regsvr32 /s oleaut32.dll
regsvr32 /s vss_ps.dll
vssvc /register
regsvr32 /s /i swprv.dll
regsvr32 /s /i eventcls.dll
regsvr32 /s es.dll
regsvr32 /s stdprov.dll
regsvr32 /s vssui.dll
regsvr32 /s msxml.dll
regsvr32 /s msxml3.dll
regsvr32 /s msxml4.dll
vssvc /register
net start swprv
net start vss

When you try to backup the VM after running the script again, it will hopefully work:


  1. MikeL

    You made my day!!!! Tried to fix this for month!

  2. Doug

    does this apply to win 2008 r2

  3. ziyaretci

    No it does not apply to Win 2008. Try this:

    1.Open the C:\ProgramData\VMware\VMware Tools\Tools.conf file in a text editor, such as Notepad. If the file does not exist, create it.
    2.Add these lines to the file:

    vss.disableAppQuiescing = true

    3.Save the file.
    4.Exit the editor.
    5.Restart the VMware Tools Service for the changes to take effect. Click Start > Run, type services.msc, and click OK.
    6.Right-click the VMware Tools Service and click Restart.

  4. Vanmanda

    Thank you !
    Both tips where very helpful while troubleshooting a problematic TSM VE environment.

    You can also receive the same error message when the level of VMWare tools in the VM is outdated. You need to upgrade VMWare tools in the VM to the latest level.

    Kind regards,


  5. Omar

    doe this work for server 2012 r2

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