Can AutoIt execute LALT+LSHIFT+NUMLOCK

[Psyllex]

Is it possible for AutoIt to execute LALT+LSHIFT+NUMLOCK?  I've attempted the following:
 

;To show the desktop
Send("{RWIN down}")
Send("{d}")
Send("{RWIN up}")
WinWait(2)
;just to make sure the desktop is activated. 
ControlClick("", "",1[,button="left"[, clicks=2 [, x [, y]]]] )
Send("{LALT down}")
Send("{CLT down}")
Send("{DELETE down}")
;Send("{LSHIFT down}")
;Send("{NUMLOCK}")
;Send("{NUMLOCK}")
;Send ("{LALT up}")
;Send("{LSHIFT up}")

This should bring up the MouseKeys dialog...but I'm getting nothing.  Thanks for any help!