The following command strings are used with MCI.

break
capability
capture
close
configure
copy
cue
cut
delete
escape
freeze
index
info
list
load
mark
monitor
open
paste
pause
play
put
quality
realize
record
reserve
restore
resume
save
seek
set
setaudio
settimecode
settuner
setvideo
signal
spin
status
step
stop
sysinfo
undo
unfreeze
update
where
window