This Disables ALL P2P traffic in Dark Souls that isn't directed to an identity on your friends list. This results in 0 invasions and nobody playing with you except people on your friends list. This will likely piss off the community, so don't use this ;)

Dll injection itself is not grounds for a VAC ban. This functions similarly to GeDoSoTa in that they both inject dll's and hook functions. DarkFriends however hooks Steam API functions instead of d3d calls, which may look more suspicious but VAC as offered by steamworks does not have automatic detection: Bamco has to contact Valve to report a cheat and for it's signature to be added to VAC.