Vampires, Gaseous form, and disrupting weapons

[Caoulhoun]

Ran into a situation this weekend where we were fighting some vampires. The vampire was reduced to zero hitpoints and assumed gaseous form. Per the PRD the vampire defensive ability says this:

If reduced to 0 hit points in combat, a vampire assumes gaseous form (see below) and attempts to escape. It must reach its coffin home within 2 hours or be utterly destroyed. (It can normally travel up to 9 miles in 2 hours.) Additional damage dealt to a vampire forced into gaseous form has no effect.

So, while the vampire would take no additional damage, can they still be destroyed by a disrupting weapon?

Disruption: A disruption weapon is the bane of all undead. Any undead creature struck in combat must succeed on a DC 14 Will save or be destroyed. A disruption weapon must be a bludgeoning melee weapon.

Since it is just being struck in combat?

Thoughts?

[Phrennzy.]

I would vote yes, the vampire is still affected by a disrupting effect. The vampire is undead even in gaseous form. The weapon isn't doing damage, so hp total isn't a factor.

[Kayerloth]

I'd also say yes. The disrupting effect doesn't need the weapon to deal damage (to get by the DR of 10/magic bestowed by Gaseous Form) to cause its effect from what I read.

Of course vampires being intelligent would have a route(s) to their coffin(s) picked in advance and if I were them at least a portion of the route would be difficult if not impossible to follow while not Gaseous (and guarded and warded).

[Icyshadow]

It's the effect that would kill the Vampire in this situation, not the damage.

So yeah, striking a Vampire in Gaseous Form with a Distrupting weapon can kill it for good.