flanking & ranged sneak attack

[davidpeng]

I am trying to build a rogue who can hang out on
the edge of battles and sneak attack with ranged weapons, are there any prc's or feats that allow
one to flank with a ranged weapon?

 

[Caliban]

I am trying to build a rogue who can hang out on
the edge of battles and sneak attack with ranged weapons, are there any prc's or feats that allow
one to flank with a ranged weapon?

Peerless Archer from the Silver Marches supplement for Forgotten Realms.

Lasher from the Sword and Fist.