Event ID 18361 — VMMS

Updated: April 7, 2009

Applies To: Windows Server 2008

This is preliminary documentation and subject to change.


The Virtual Machine Management Service (Vmms.exe)  is the service that uses WMI to perform Virtual System Management related operations in Hyper-V and the Hyper-V Manager.

Event Details

Product: Windows Operating System
ID: 18361
Source: Microsoft-Windows-Hyper-V-VMMS
Version: 6.0
Message: Import failed because the virtual machine configuration is invalid.


Check export and import settings

Check the environment (including the configuration settings of any virtual machines involved in this operation) and retry the operation. If the vmms service has stopped running, restart the vmms service.

The virtual machine configuration information is contained in the vsconfig.dll file.  By default the vsconfig.dll file is installed at \\windows\system32.

To restart VMMS:

1. In the Hyper-V Manager click the server on which you want to stop the service, then click Action, then click Stop Service.

2. Click Action, then click Start Service.

You can use the restart services PowrShell cmdlet to restart VMMS. On the computer that has the stopped service, open a command prompt as local administrator and type the following:

C:\PS>restart-service vmms


Check that the VMMS service is in the running state in the Service Control Manager and that the failed operation now succeeds.

Related Management Information