Actually I think it
can be done, by using the shell command together with Mortscript...
See:
http://www.sto-helit.de
(There seems to be some restrictions on the function though, I'm not sure if they apply in your case)
Mortscript is a freeware script program which has a lot of good possibilities - and even more when you combine it with Basic4ppc ! (and no, I am not the author of it, though I wish I was
)
1 You would need to install Mortscript,
2. Write a textfile with the content: Setbacklight(0,0)
3. Name it e.g. backlight.msi
4. Run Shell("backlight.msi","")
all the best and good luck / Bjorn