Hello there,
I am afraid InstallShield Developer has to be installed on the machine even with the enterprise version and you will need a separate license for that.
However, there is always the Standalone build version of Developer that can be installed on several machines with just one license.
Please feel free to call one of our french speaking product consultants such as Frederic at +44 117 9030 634 to assist you further. You can also send me a PM and I can pass on your details to send you more information or to call you.
Best Regards,
Marco