NetStumbler v0.4.0

Midas on 7 Dec 2017
  • 806KB (uncompressed)
  • Released on 21 Apr 2004
  • Suggested by Andrew Lee

NetStumbler allows you to detect Wireless Local Area Networks (WLANs) using 802.11b, 802.11a and 802.11g. You can use it to verify that your network is set up the way you intended, find locations with poor coverage in your WLAN, and detect other networks that might be causing interference with your network, etc.

System Requirements: Win2K / WinXP
Writes settings to: Windows registry.
Dependencies: MFC71.DLL
License: Freeware
How to extract:
  1. Download the installer and install to the default folder C:\Program Files\Network Stumbler.
  2. Then copy all files (except uninst.exe) to a folder of your choice. Also copy nsndis5.sys and nsndis50.dll from C:\WINDOWS\SYSTEM32 to the same folder.
  3. Uninstall the program.
  4. Launch NetStumbler.exe.
Similar/alternative apps: Homedale
What's new?
  • Fixed bug (introduced in 0.3.30) that caused "Reconfigure" to put ORiNOCO cards into a state where they would report no access points.
  • Support for Atheros, Atmel, Intersil Prism2 based wireless cards. Improved support for Cisco cards.
  • Allow use of Serial Earthmate GPS. (USB Earthmate should already work using NMEA and serial driver)
  • If you scroll all the way to the right of the graph view, it will auto-scroll new data.
  • Fixed bug (introduced in 0.3.30) in graph view: corrupted display when scrolling.
  • Fixed bug in graph view: improper scroll bar tracking with large data sets.
  • If "Reconfigure" is on, the Windows XP Wireless Zero Configuration service will be stopped when you start scanning. It is restarted when the application exits.
  • If you connect to a network that supports DHCP, the IP subnet is reported.
  • If the access point is discovered in the ARP table, its IP address is reported.
  • While you are scanning, the system will be prevented from going into standby unless power is critically low.
  • Large files load several times faster than before (though the really large ones still don't load fast enough).
  • A whole lot of new Scripting features.

Full changelog at

4 comments on NetStumbler  The Portable Freeware Collection Latest Entries Feed

__philippe 2017-12-07 16:18

Granted all of the above !

More reasons for the SRVP crowd (Society for Registry Virginity Preservation),
Yours truly included, to embrace Homedale instead... ;-)


Midas 2017-12-07 15:19

Quick note for saying that, in case of 64-bit Windows 7, if present all the afore mentioned files (nsndis5.sys, nsndis50.dll, mfc71.dll and msvcr71.dll) will be located at '%WINDIR%\SysWOW64'.

Registry entries might be found under 'HKLM\Software\Bogosoft\', 'HKCU\Software\Bogosoft\', 'HKCR\.ns1', and 'HKCR\NetStumbler.Document'.

Plus, NetStumbler requires administrative privileges.


__philippe 2017-12-07 14:14

NetStumbler v0.4.0 (rel 21-APR-2004),

the granddaddy of all wifi home network analyzers,
still working fine since first released way back in 2002, thank you,
yet possibly superseded nowadays by younger generation tools such as Homedale :


Jez 2008-09-10 01:47

You may also need to download MFC71.DLL and MSVCR71.DLL and move them to the same directory as the program.

Post your comment