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Vistumbler is a lightweight wireless network scanner coded in AutoIT that runs natively on Windows Vista through Windows 10, offering administrators, penetration testers, and Wi-Fi enthusiasts a straightforward way to discover, catalog, and geographically plot nearby 802.11 access points. By continuously polling the local radio environment and optionally correlating the results with GPS coordinates, the application builds an interactive map that shows every detected network’s MAC address, SSID, channel, encryption type, and signal strength over time; this makes it easy to spot rogue devices, locate dead zones, plan antenna placement, or simply document the coverage footprint of legitimate infrastructure. The single maintained branch, version 10.8.2 branded “VistumblerMDB,” exports its findings to common formats such as CSV, KML, and Google Earth overlays, allowing further analysis in external GIS or spreadsheet tools. Because the executable is portable and consumes minimal RAM, it fits comfortably on a USB stick for field surveys, while the open AutoIT source encourages advanced users to extend the core functionality with custom scripts. The program operates strictly in read-only mode, so it can be safely run on corporate laptops without violating policies that prohibit active probing or association attempts. Vistumbler is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.
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