Unpacker / De-compiler

[dubblekiller]

First request:
I need a decompiler for this exstension ".vfs"
Who can help me out ?

Second request:
Does anyone know something about AutoIT, or another script-making program?
I need a "shotbot" for a game called GunZ the Duel.
When I aim my crosshair on a player and it turns red it has to shoot automatically.
I'd even pay for it if it works.