Q: How many wireless cards are supported by the Wireless Scanner ?

A: I really don't know how many cards are supported. The active wireless scanner uses the Winpcap Packet Driver and  802.11 OIDs from  Windows XP DDK, If your adapter supports the mandatory Windows WLAN OID_802_11_BSSID_LIST_SCAN (0x0D01011A) and OID_802_11_BSSID_LIST (0x0D010217) the application should work. Passive scanning is supported using the AirPcap adapted from CACE Technologies.