Why wpa_supplicant doesn't start with ndis0 interface?

[Yuri]

I have the ndis based driver preloaded during boot. It creates ndis0 
interface.
/etc/rc.conf has the following lines:
wlans_ndis0="wlan0"
ifconfig_wlan0="WPA DHCP"

However, wlan0 device isn't being created during system boot or during 
'/etc/rc.d/netif start'.
'/etc/rc.d/wpa_supplicant start' also silently doesn't do anything.

Only commands typed manually:
 > ifconfig wlan create wlandev ndis0
 > wpa_supplicant -D ndis -i wlan0 -c /etc/wpa_supplicant.conf
 > dhclient wlan0
start wireless network.

On another machine with ath0 wireless interface similar configuration 
works fine.

How can I understand why wireless doesn't start during boot?

Yuri