A way to modify particle effect?

[mchick]

I have searched this at other sites as well as Google and I can't find a mod or solution.

I am looking for a way to modify a certain particle effect the games uses. It's when a vampire bites his/her victim; there are purple particles that come out and I'd like to remove those if possible. That's the only particle I want to remove as others seem useful.

I've seen other mods that disable other particle effects (such as coffin fog and witch aura) so I hope this can be done.

Thanks

Edit: Should mention that I'm somewhat a newbie to Sims 2 and figured out I can disable all effects with boolprop useEffects false yet when I turn them back on, only some come on and not all of them.