The easiest way to find all computers running the Responder client is to click on the Select Responder clients toolbar icon 
or choose Select>All Neon Responders from the Edit menu. LANsurveyor then highlights any nodes running the Responder client on all open maps.
Some management operations might apply to only certain types of computers (e.g., file and folder distribution). Move your mouse over Select on the Edit menu to choose Responder clients by platform: Windows XP/NT/2000, Windows ME/95/98, Linux, Mac OS X, or Classic Mac OS.