[Description] Locks the workstation's display. [Function] 
LockWorkStation
A b o r t S y s t e m S h u t d o w n
E x i t W i n d o w s
E x i t W i n d o w s E x
I n i t i a t e S h u t d o w n
I n i t i a t e S y s t e m S h u t d o w n
I n i t i a t e S y s t e m S h u t d o w n E x
L o c k W o r k S t a t i o n
S h u t d o w n B l o c k R e a s o n C r e a t e
S h u t d o w n B l o c k R e a s o n D e s t r o y
S h u t d o w n B l o c k R e a s o n Q u e r y