title: Is it possible for a Windows service impersonate a user without a password?
body: <p>Is it possible for a C# Windows service running as Local System or Local Service to impersonate another user <em>without needing a password for that user</em>?</p>
  
  <p>How would this be done?</p>
  
  <p><strong>Note:</strong> My motivation for this is to be able to run user specific WMI queries in a service.  The WMI calls I'm making (to the OfflineFiles WMI API) are user sensitive, and they only work when I run my service as the user whose data I want to query.  I don't want users to have to enter their usernames and passwords when installing the service, so I'd like to just run the service as Local System or something, and impersonate the user I care about.</p>