How to authenticate the administrator username in Windows

Question

I want to authenticate the administrator username's password.
The administrator username is not a domain account but a local system account.

I am trying to do this in Python, but any code even if it is .NET, VC++ would be fine.
Thanks

Answer 1

You can either LogonUser (and be sure to CloseHandle after) or call NetUserChangePassword (with old and new passwords the same). Anything in .NET or Python will likely wrap LogonUser.