Yes.  Pretty much any scanner is going to require administrative  
access. (I know for a fact that Nessus and ISS do, haven't tried  
Retina in a long time, but I imagine it's the same).

Of course, this being the LINUX-L list, I should point out that  
you're looking for a linux-solution in a windows-world.

You could try the run-as tool, though that has its own downsides --  
namely you have to give it admin credentials: 

Or, just us a full-connect scan since no raw sockets are required.

Jordan Wiens, CISSP
UF Network Security Engineer

On Oct 7, 2007, at 10:35 PM, Matt wrote:

> Nmap says it needs admin. privileges so it can create raw packets  
> to run certain scans such as the SYN scan. Do the other scanning  
> tools for example, ISS Internet Scanner, Nessus, and eEye Retina,  
> have the same issue? If so, is there a sudo-like mechanism in  
> Windows to run them with elevated privileges but not under an  
> admin. account? While I'm at it, any quirks with the above tools I  
> should know about?