To All 3,
Thank you with your help I found the issue. UAC was disabled in the
registry on this image.  IIRC we had trouble updating some software by
automated script and turning UAC off was required.

After re-enabling UAC, wintun started normally.

On Thu, Sep 10, 2020 at 12:33 AM Gert Doering <g...@greenie.muc.de> wrote:

> Hi,
>
> On Thu, Sep 10, 2020 at 12:10:25AM -0700, Marvin Adeff wrote:
> > Please allow me to back up a moment and restate this:
>
> As a matter of mailing list etiquette - could you please not post
> this with
>
>   Subject: Re: [Openvpn-devel] [PATCH] Fix client's poor man NCP fallback
>
> I do try to figure out what is "patch related" and what is "new problems",
> and *this* is certainly not related to the NCP PATCH.
>
>
> > 1.  I installed the beta3 msi from the web site logged in as a user that
> has admin privileges.  But no elevation was used to install it, just
> double-click on the file.
> > 2.  I only used the GUI as installed, with no elevation, to start
> OpenVPN.
> > 3.  With TAP selected in my .ovpn config file, everything works
> normally.
> > 4.  I am reporting that (from the same login) if I change the .ovpn to
> use wintun (all edits done through the GUI selection), it fails with the
> error I showed below.
>
> Is the interactive service running?
>
> If tap is used, do you see "routes installed using service" or do you
> see netsh commands in the openvpn log?
>
> > Is 4. what you are saying is not supported?  In our use, as we have done
> for the past decade, the client boxes are used for M2M monitoring.  OpenVPN
> has to connect on bootup (.ovpn config file contains inline certificates)
> regardless if there is a user logged in or not as M2M monitoring occurs in
> the background.  And if a user does login, most often it is with
> credentials that have admin privileges.  I am trying to understand if what
> you???re telling me is that this will no longer work, or if we will need to
> do something different now?  My testing used the GUI to see how things will
> work with wintun so we can continue testing.
> >
> > Do I need to NOT use the GUI to get wintun to work?
>
> Wintun needs SYSTEM privileges.
>
> To get such, you either need to run OpenVPN "at boot" via openvpnsrv2
> (which has SYSTEM privileges), *or* you need to use the interactive service
> via the GUI.
>
> Due to some Vista-related quirks in the GUI, the GUI will not use the
> iservice if it's run elevated (run-as-admin).  If I understand Selva
> right, it *should* work if you "just run it", even if the user has
> admin privs, as long as UAC is active (as Win10 runs user processes
> unprivileged, even if the user is part of the Admin group).
>
>
> The error message you have posted hints at "the interactive service is
> not being used" - which could be due to "it is not running" or "GUI is
> running elevated".
>
> gert
> --
> "If was one thing all people took for granted, was conviction that if you
>  feed honest figures into a computer, honest figures come out. Never
> doubted
>  it myself till I met a computer with a sense of humor."
>                              Robert A. Heinlein, The Moon is a Harsh
> Mistress
>
> Gert Doering - Munich, Germany
> g...@greenie.muc.de
>
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