Thank a lot Herman, by this way my createProcess will no more make a screen, no more flash when running a new child process.

I'll tried it as soon as possible and tel you how it's work, do you experimenting some trouble using createprocess and VFP, I need to write some function to write/read data to/from memory, because if you can pass data to your new process, I don't know another way to pass data form your new process to your parent one.

Is there another way ?

Best Regards,
Roman