I know quite little about complex SH-installations but as we've got it explained there is apparently a Sharepoint-internal set of goups and users.
Se this for example: http://www.alexbruett.net/?p=158

More info here: http://zimmergren.net/technical/sharepoints-hidden-user-list-user-information-list

I'll try to dig into how they might be implemented and see if I could build a connector towards those as well. I guess though that the architecture would set some limitations here since I can not connect two competing Authorities to one SH-connector.

/ Johan

2012/10/23 Karl Wright <daddywri@gmail.com>
> Hi Johan,
> As far as I know, there are no SharePoint users and groups that exist
> outside of Active Directory.  All users and groups within Active
> Directory can be handled by the AD authority, even if they are
> dedicated solely to SharePoint.
> Karl
> On Tue, Oct 23, 2012 at 4:49 PM, Johan Persson <perzzon.johan@gmail.com> wrote:
> > Hi!
> >
> > I scrolled the previous post regarding sharepoint and auth. but found
> > nothing.
> > Is it possible to read the authority info from sharepoint users and groups.
> > We have a environment that mixes AD and sharepoint authority.
> >
> > Best regards
> > /J