void main()
{
object oWeapon = GetLastWeaponUsed(OBJECT_SELF);
string sWeaponTag = GetTag(oWeapon);
if((FindSubString(sWeaponTag,"Silver")!= -1)||(FindSubString(sWeaponTag,"SIL"))!= -1)
{
    object oWerewolf = GetAttackTarget(OBJECT_SELF);

    AddItemProperty(DURATION_TYPE_TEMPORARY,ItemPropertyEnhancementBonusVsRace(IP_CONST_RACIALTYPE_SHAPECHANGER,1),oWeapon,7.0);
    AddItemProperty(DURATION_TYPE_TEMPORARY,ItemPropertyVisualEffect(ITEM_VISUAL_SONIC),oWeapon,7.0);
}
}