WMI Provider Hosting

Applies To: Windows Server 2008 R2

WMI resides in a shared service host with several other services. To avoid stopping all of the services when a provider fails, providers are loaded into a separate host process named "Wmiprvse.exe." More than one process with this name can be running. Each can run under a different account with different security. For computers running on the Vista operating system, use the winmgmt command to run WMI in a separate process, by itself, using a fixed port.

The shared host can run under one of the following system accounts in a Wmiprvse.exe host process:

  • LocalSystem
  • NetworkService
  • LocalService

A provider can also be a local COM server (.exe), or self-hosted, which does not require a WMI provider host.


Event ID Source Message



The %1 provider has been registered in the WMI namespace, %2, to use the LocalSystem account. This account is privileged and the provider may cause a security violation if it does not correctly impersonate user requests.

WMI Service

Management Infrastructure