is possible add option to execute a program when exit?

[cocute]

is possible add option to execute a program when exit?
i use SS2DiSEqC 1.10 pluggin with my skystar2 2.6d (drv4.4.1),

by default when exit of dvbdream LNB is ON,
and i need execute this command
"C:\dvbdream\Plugins\SS2DiSEqC.exe LBNOFF"
to stop electric power to my Motsat3 and LNB,

SS2DiSEqC 1.10 pluggin have option "SLEEP SS2" but not works for me.

i think add this option is very simple and very util for all.

thanks