"Bow Attack. If Distracting Shot hits, it interrupts target foe's action but deals only 1...13...16 damage. If the interrupted action was a skill, that skill
is disabled for an additional 20 seconds"
So for example if a skill says it interrupts only spells it will interrupt the following:
* Enchantment spell
* Hex spell
* Item spell
* Ward spell
* Weapon spell
* Well spell
Any skill distracting shot interupts is shut down for 20 seconds. Spells, hexes, weapon skills, etc count as "skills"
Like he said.
To be even more clear : Any "type" of skill that is on a enemy skill bar will be disabled ! Some exceptions for monster skills maybe, but even those are disabled.