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Q: 

Cannot run as a non-admin impersonated user - access is denied

I do impersonation of a non-admin user account in an app that is running as an admin user (using LogonUser(), DuplicateToken() and WindowsIdentity.Impersonate() functions). Since this user account is temporary, I also need to load a user profile (using LoadUserProfile() native function). All methods execute successfully (no last error is set) and the current identity is the impesonated non-admin user as expected. However, when I try to run a new process with System.Diagnostics.Process.Start(), I get an error:

Access is denied.

When I try to manually execute the same scenario with runas /profile /user:mynonadmin user, everything works fine.

What am I missing here?

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