WiFi – inSSIDer – Great Free SSID and Channel Scan Tool
I was a huge fan of Netstumbler (the WiFi SSID scan tool with GPS support), however their lack of imagination and willingness to advance together with the existing and future technologies and platforms somewhat rendered them non-attractive to me anymore.
Yes, their tool does not work on Windows 7 and I can state as a Windows user that Windows 7 is by far the best desktop OS product in Microsoft history. So I somehow don’t get their hesitation or lack of desire to release a supported version. Here is what their forum says about that:
VISTA: Before you ask.
Microsoft's latest Operating System, Vista, is NOT one of the OSs that NetStumbler works under. The supported OSs are Windows 2000 and Windows XP.
NetStumbler that if might or might not function under Vista, but either way the OS is unsupported. An unsupported OS means the information it renders is suspect, and that it may do all sorts of odd things including die suddenly without warning.
Do NOT start another thread asking about it, these threads will be closed. Don't even think about starting another thread whining about it. Whining threads will just be thrown in the trash. Really stupid whining threads will be made available for public ridicule.
The members of these forums have seen this same issue previously when WinXP was first released. There were all manner of problems in getting prior versions of NetStumbler to run under XP (which had been designed for Win9x and Win2000). An ENORMOUS amount of bandwidth and forum server space was consumed in dealing with the anguished screams and sobbing of the early adopters of XP who were reduced to mindless masses of bruised and blubbering flesh by the experience. Before the current version of NetStumbler was released, it all boiled one thing in the end: There was no way to accurately predict what combinations of the new OS and cards might or might not work.
The same thing applies to Vista.
When and if when the author of the program releases a new version of NetStumbler is up to him. At the time that he does, the new NS may support Vista. In the meantime suck it up. That's what you get for being on the the bleeding edge.
Then I asked Google and I and found Metageeks and their amazing range of WiFi tools including the free inSSIDer which you can get from their website.
This tool offers an excellent view of your surrounding wireless Wi-Fi transmissions and it shows you the SSID, type of encryption, transmission power and channel so you can easily troubleshoot interference and configure your wireless to use less overloaded channel and get better performance and higher speeds this way.