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When looking at the members of a group in AD there are normal members (singe head icon) groups (two heads icon) and then Anonymous Logon / Authenticated Users and Everyone which share an icon which is a single head with a red up arrow.

What does this icon mean?

The icon in question is the user icon but it has a little red up arrow coming out of the user. It's icon number 34 inside dsuiext.dll:

alt text XP/2003

alt textVista/7

Thanks for any help

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up vote 5 down vote accepted

The red up arrow indicates a Foreign Security Principal (FSP). This can be used to represent well known FSPs such as Anonymous Logon or for users in an external domain.

Technet: How Security Principals Work

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Awesome thanks very much for your help. – Tollo Jul 26 '10 at 15:04
@Tollo: If my answer addresses your question sufficiently please feel free to mark my answer as accepted. :) – jscott Jul 26 '10 at 15:32
Ahhh I tried to mark it up, but was told I couldn't. I did not realise that accepted was different until you commented. Thanks! – Tollo Jul 26 '10 at 15:40
@Tollo: Not a problem. Thank you. – jscott Jul 26 '10 at 15:50

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