How to make a wind effect?

[Melvin]

CreateParticleSystemAtEntity(string& asPSName, string& asPSFile, string& asEntity, bool abSavePS);
It might be dust_whirl_large.

Thanks its exactly what I looked for.

But, the script for the activation on colide... I tried this:

void AtStart()
{
AddEntityCollideCallback("Player", "Wind_Activate", "WindBlowing", true, 1);

}

void WindBlowing(string &in asParent, string &in asChild, int alState)
{
CreateParticleSystemAtEntity("", "ps_dust_whirl.ps", "WindBlow", false);
PlaySoundAtEntity("", "scare_wind.snt", "Player", 0, false); //Works
}

But no particle there.. am I doing something wrong?