@CocaCola : No, I'm not scripting, I modify the FPSC source code in DBPro
@James H : I work on the FPSC source code from 1 year

It's not the DBPro the problem, but the FPSC source code, because my code works on a blank project ^^
How I make particles :
if image exist(BloodImg)=0 then load image "AVP\Blood particles.png", BloodImg
if particles exist(HeadParticles)=0
make particles HeadParticles,1,100,25
set particle emissions HeadParticles ,50
endif
if particles exist(HeadParticles)
position particles HeadParticles, limb position x(obj, entityprofile(entid).headlimb), limb position y(obj, entityprofile(entid).headlimb), limb position z(obj, entityprofile(entid).headlimb)
endif
Eternal suffering ...
I'm french