Intel 4965AGN Monitor Mode Capable?
first, get your card name from the command: sudo iwconfig then for example if it was called wlan0: sudo iwconfig wlan0 monitor
now, putting some wireless cards into monitor mode will fail due to driver limitations. thats why you will hear a lot about getting patched drivers if your card falls into this category. as far as your intel card is concerned, from what i can quickly find out, is that the drivers for it cannot inject. BUT, you should be able to use the almighty ipwraw to monitor and inject.
links i used for the above info: http://backtrack.offensive-security.com/index.php?title=HCL:Wireless#IPW4965.2FIWL4965_agn http://forums.remote-exploit.org/showthread.php?t=7260
i really recommend getting yourself backtrack and making a live cd, and boot off it, as it has all the patched drivers and tools all ready to go.
@thron: Good to see you! Jump on msn!!
Anyway. The way to do this differs from card to card, for atheros cards you need to create a new VIF.
Anyway, check out your card, also you say cmd.exe .. this ain't happening on windows mateā¦