problem with remote registry access

Running FreeBSD 5.3
University campus environment


First off, I am a newbie with Nessus

I am experimenting with implementing a Nessus scan with Netreg.  I am 
using Net::Nessus::Scanlite.  I want to scan a new student computer that 
has been connected to the network for vulnerabilities to curb the amount
of dirty computers on the network.  I have a working perl cgi on a web 
page that initiates a scan on the connecting computer, but for most 
Nessus plugins I have tried, I get log messages like this:


Not launching smb_registry_full_access.nasl against 10.10.194.78 because 
the key SMB/registry_access is missing (this is not an error)


This results in no holes found for machines I know to be dirty, since 
the nasl was not run to find the holes.  After some reading, it is my 
current understanding that these nasls won't run because remote registry 
access is not configured on the machine being scanned.  Am I correct?

If I am correct, this could pose a problem, since I have no control on
the setup and configuration of computers students bring on campus.  If
I can't scan student's computers with important plugins which just 
happen to need remote registry access, then the usefulness of this 
project would be severely diminished.

Is there any way around this problem?

I would appreciate any help or insight to this problem.  Feel free to 
shoot me down over my newbiness.


Thanks.
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