First of all, vampires are weak to salt. Drives them bloody bonkers. Bit like a slug, really. They also hate silver. You cut a vampire with silver, that's a cut that will never heal. Also, this is the important one, but a vampire is at its weakest just after its fed. So if you care to let a vampire feast on some expendable friend of yours, they'll be ripe for the taking.

But as you're not keen on killing any vampires, just remember they're very easily impressed with gold. A big chest of it ought to earn this vamp's attention.