Thanx John and Ron for helping me.
John : i'm glad runtimes with scriptmaster works on your computer, did u sign it with your apple id developper and did they work even after download ?
ron : I'll test that but for me it's not a solution because i want my app to be downloaded on the web and so i've sign it with my id developper and sign the dmg ( with dmg canvas). So there is no warning when the user download the file and install it, all work but scriptmaster. If your solution work, it means that i've not correctly sign my app.
For the moment i test, if it works, i will create my own plug-in with scriptmaster advanced but i don't see any porcedure to sign it (if needed).
thanx to both of you and sorry for my bad english
Philippe