Well it's not background, but you can do the !refresh thing and go afk, and it will still work. Though in lab, you will DC a lot, don't know why... Probably has to do with the !refresh thingy... Idk, but here ya go...
How-to-use:
RIGHT WHEN YOUR XP SKILL COMES, press Ctrl+p on the green bar. The sooner you press ctrl+p the sooner it will use it when it repeats etc. Because it changes pixels about every .1 second, it looks for the EXACT pixel and then does the steps to use fatal.
!refresh MUST BE the first word that appears when you press the down key on your chat bar. MAKE SURE your chat bar is selected (just click on it), and the first thing that would appear would be !refresh.
WORKS ON ANY RESOLUTION... WILL NOT WORK IN BACKGROUND
Esc - Shut off program
ctrl+p - Read above
F3 - Fatal strike
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It will not use Fatal strike the FIRST time you press ctrl+p... Use fatal strike manually and the next time you get fatal strike, it will use it.
Look at the diagram for a picture of instructions.






