for this product
Please select from the
links in the center of this page.
Last Review: June 17, 2012
Home > Support
> NetScanTools Pro Support >
Common NetScanTools Pro Problems
NetScanTools Pro Problems Common to all versions
Versions earlier than 10.81 are not recommended for Windows 7.
Versions earlier than 10.41 are not recommended for Windows
Problem (all NST Pro versions including v10, any operating system):
Incorrect reporting of TCP ports 25 (smtp) and 110 (pop3) as being
active on a target system when there are not really any services
running on those ports. Symptoms: Unlike normal connect responses
to these ports, you do not receive any login banner data back. These
ports always appear no matter what IP you are scanning even if the
IP does not exist.
Nov 2009: We no longer
support versions older than 10.
Problem (NST Pro all versions 2003 and earlier): Whois queries
for '.org' either fail or produce useless results. The problem is
the whois servers have yet again reallocated responsibilities for
reporting information. Workaround depends on the version of NetScanTools
Pro that you have. Posted February 5, 2003.
Problem (NST Pro all versions 2002 and earlier, Windows NT4/2000/XP
only): While installing NetScanTools Pro, you get most of the
way through the installation, then see an error message 115 and
the installation aborts. Posted 12/20/02.
- Solution, NetScanTools Pro 2003 only:
Get the Service Pack above for NetScanTools Pro 2003.
- Solution, NetScanTools Pro 2000/2001/2002
only: In whois setup, enter whois.pir.org
in the Step One .com, .net Whois Server edit box. Then do your
'.org' query. After you are done with the '.org' query, return
the Step One Whois Server back to the original server. We will
be automating this process soon in the next Service Packs for
NetScanTools Pro 2002 releases, but not for the earlier versions
- Solution: Logout
of Windows and relogin as an Admin privileges user. NetScanTools
Pro requires administrative privileges for certain functions
to work correctly.
Problem (NST Pro all versions, Windows XP only): NetScanTools
Pro when run on Windows XP is unable to sort out NetBIOS (Windows)
computer names returned to it during NetScanner sweeps. XP's netbt.sys
fails for multithreaded NetBIOS name responses. For more info, see
Microsoft Knowledge Base article Q317936.
- Solution: Install
Windows XP Service Pack 1.
Problem (NST Pro 2002/2001 only): When using the Whois tab
to query on an IP Address, you see a message similar to this one
[Query: 216.144.1xx.xx, Server: whois.arin.net]
No match found for full 216.144.1xx.xx.
# ARIN Whois database, last updated 2002-08-28 17:05
# Enter ? for additional hints on searching ARIN's Whois database.
[End of Data]
This error is due to a change in the whois server
at arin.net. We are working on new Service Packs for both 2002 and
2001 and they will be released in reverse order, more recent version
to oldest version.
Problem: Upon starting a second instance of NetScanTools
Pro 2003, 2002 or NetScanTools Pro 2001 Release 2, you see an error
- Solution: Perform
the following steps for a workaround only when you see
that message from arin.net:
1. Upon seeing that sort of message, unselect SmartWhois.
2. Next press whois Setup.
3. Select whois.arin.net as the default whois server and make
sure it's using port 43.
4. Press OK to close setup.
5. Enter +ipAddress [ex. +188.8.131.52]
6. View the results...
7. Reselect Smartwhois checkbox.
Error #: -20
Error #: 90602
C:\Program Files\NWPS\Netscantools Pro\ipmac.dbf
This error means that the database drivers we
use are only allowing the first instance of NetScanTools Pro to
access the IP/MAC Address tab database. Any subsequent instances
of NetScanTools Pro cannot access the database and the data area
of the IP/MAC tab will appear empty on those instances. This behavior
is by design. You can use all other functions in NetScanTools Pro
that do not access the database.
- Solution: Ignore
the error and use the first instance to access the IP/MAC Address
Problem: any of these tabs -> Ping, Traceroute, NetScanner,
NetBIOS, Database Tests, or Batch Resolver shows only a blank results
area. There are no apparent columns and no results.
Problem: Port Probe is missing ports you know are there on
the target machine. This affects Windows 95/98/ME users ONLY.
- Solution: Press
the Autosize button.
Security Issue: When using NetScanTools Pro 200x, it sends
an HTTP GET What's New Web Page message to the www.nwpsw.com website.
- Solution: Upgrade
to the latest service pack AND set the probe delay setting to
at least 60ms. (Port probe exceeds the capabilities of the winsock
found on 95/98/ME, NT/2000 users are NOT affected.)
NetScanTools and versions 1-8
of NetScanTools Pro have a means of getting the latest news
from our website. This is done when you first click on the
"What's New at NWPSW Web Site" tab after starting
NetScanTools. Subsequent clicks do not request the file
until the program is restarted. NetScanTools requests a
small text "whatsnew.html" file from the web site. This is
done using this standard HTTP protocol request:
User-Agent: NetScanTools-32 Bit\r\n
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
www.nwpsw.com responds with
the web page and it is displayed as text on the What's New
tab of NetScanTools.
If you do not wish
NetScanTools to request the whatsnew.html file, do not click
on the What's New tab.
Problem: NetScanTools Pro 200x will not start on Windows
95. There is an error message about being unable to locate ws2_32.dll.
This may also occur during installation. We do not recommend using
NetScanTools Pro on Windows 95.
Problem: (Windows 95 previously updated to Winsock 2 ONLY)
NetScanTools Pro 200x does not resolve hostnames to IP addresses
for most tabs like ping, traceroute, whois etc. Further symptoms
are that other internet programs like web browsers, mail readers,
ftp all work fine and you are NOT using a firewall. This seems to
affect multihomed systems. We do not recommend using NetScanTools
Pro on Windows 95.
- Solution: You
do not have Winsock 2 on your system, please download and install
the newest Winsock 2 update for Windows 95
- Solution: check
this file in your windows folder: vnbt.386 version 4.10.1658
dated 03/20/98 6:00pm 87,765 bytes. If this file is not this
version, please download and install the newest Winsock 2 update
for Windows 95
There has been more than one Winsock 2 update released.
Submit a NetScanTools Pro Tech Support Request
Support Request Form.
Complete this form if you have an immediate or serious problem.
Before doing so, look in your online Help (press F1 key or help
button) built in to NetScanTools Pro. Support is for registered
NetScanTools Pro General Help
How to add a MIB to NetScanTools Pro's SNMP section.
Version 10+: select the SNMP tool, then
select Advanced Queries from the dropdown action menu and
then press Perform Action. Now select Add a MIB from the
Work with MIBS group. Locate your mib description file and
NetScanTools Pro will place it in the correct location. You
will need to reboot NetScanTools Pro so that it will
recognize the MIB(s) you added.