today i had chance to run Nessus agains windows 2k3 server version 5.2(build 3798.srv03_rt.030324-2448), win xp pro ver. 5.1 build 2600 and win 2000 pro ver. 5 build 2195 SP 4 .....
all with default installation by avarage users who connect to internet.........
I found the scans to be interseting.. so i am posting the scans here

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For Win 2000 pro ver. 5 build 2195 SP 4
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1 security, 10 security warnings, 7 security notes
50% medium, 50% low risks
Null session establishment possible
Remote user and groups enamuration possible
packets with FIN set accepted

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For Win XP Pro ver. 5.1 build 2600
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6 security, 11 security warnings, 9 security notes
41% medium, 41% low risks, 12% high, 6% serious
Null session establishment possible
packets with FIN set accepted

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For Win 2K3 Server version 5.2(build 3798.srv03_rt.030324-2448)
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1 security, 7 security warnings, 7 security notes
41% medium, 41% low risks, 12% high, 6% serious
Null session establishment possible
packets with FIN set accepted

so what u think about the security issues...lets discuss in detail thats why i am posting these here..........