inSSIDer is an award-winning free Wi-Fi Network Scanner for Windows Vista and Windows XP. Because NetStumbler doesn't work well with Vista and 64-bit XP, we built an open-source Wi-Fi network scanner designed for the current generation of Windows operating systems. A year later, inSSIDer was receiving great reviews on Lifehacker and Tekzilla. Benefits * Inspect your WLAN and surrounding networks to troubleshoot competing access points.* Use Windows Vista and Windows XP 64-bit.* Uses the Native Wi-Fi API.* Track the strength of received signal in dBm over time.* Filter access points in an easy to use format.* Highlight access points for areas with high Wi-Fi concentration.* Group by Mac Adress, SSID, Channel, RSSI, and time "last seen."