Click any question below to view an explanation and recommendations.
Operating System Version
Incorrect Version of Windows: Can Internet Scanner run under Microsoft Windows prior to 4.0 or Windows 95?
Running Internet Scanner Under Windows NT Server: Can I run Internet Scanner from a Windows NT Server?
Windows NT 4.0 Beta: I am installing under the Beta 2 version of Windows NT 4.0 and the screen flashes several times while the setup program is loading. Why is this happening?
Internet Scanner Configuration Issues
Changing Risk levels: How do I change the risk levels for individual vulnerabilities?
Missing Raw Packet Driver: What am I missing if I do not install the Raw Packet Driver?
Office 95: I installed Internet Scanner and now I cannot install Office 95. Why?
Running on a Token Ring network: If I run Internet Scanner on a Token Ring, what are the performance differences?
Running over Dial-up Networking or a modem: If I run Internet Scanner over a modem, what are the performance differences?
Too Many Users: When scanning a Windows NT server, Internet Scanner timed out with the message “Too many users.” Which setting could have caused this and why?
User is not Administrator: I attempted to run Internet Scanner as a user and my scan was not completed. Why?
Using SmartScan: What is SmartScan, and how can I control its use while scanning?
Slow Performance or System Halts
Numerical Error Codes: Internet Scanner displays a message in the form of “A critical application error has occurred. Please call ISS for more info Error 20000001, could not initiate scanner.” What does this code mean?
OOB Check: What will happen if I run the Out Of Band (OOB) check against my host?
Socket Connection Hang: When Windows NT attempts to make a socket connection, no reply occurs and the system seems to hang. What is happening here?
Solaris Inetd Loop: When I run a scan, my Solaris 2.4 machine slows down considerably. Why?
Unusually Long Scan Times: My scans are taking a long time to complete. Why?
False Positives or Inconsistent Performance
Failure to Create Null Session: I installed the LAN Manager Fix and now I cannot create a null session from a previously saved session. Why not?
Failure to ID Operating System: The results of my scans do not always correctly identify some operating systems. Why?
ICMP-based False Alarms: Why is Internet Scanner incorrectly identifying the Data Flood, System Log Flood, and Rwhod based vulnerabilities?
More than One Network Card: One of the host computers reports different information on an identical scan. What’s happening?
Only Scanning the First Domain Controller Found: Why does Internet Scanner only scan users on the first Domain Controller it finds?
Scan Results Differ with/without License Key: When I run a scan on an IP address of a host machine using the license key and then run a scan using the same IP address without a license key, I get different scan results? Why?
Server Operator Permissions: Internet Scanner detected that the Scheduler Key has Incorrect Permissions. The remedy is to remove write access to the Schedule Key for Server Operators. When I look at the permissions through User Manager, I do not see Server Operators listed. What is the problem?
User Password Checks Disabled: Internet Scanner disables certain password checks, even though I have enabled them. Why is this happening?
Checking Status Messages in Log Files: How can I capture host status messages that show what checks were run on each host, if I am running scans non-interactively from the command line or from the Scheduler?
Safely Sending a Log File: What can I do to remove sensitive information from my log files? You will need to edit the file and remove all IP addresses and DNS names.