GkSetup ECommerce Edition includes a file called BLDSTD.EXE. By using this tool, you can build setups without using the standard GUI.
Usage:
BLDSTD /I:<Projectfile>
<Projectfile> is the path to the project file you wish to build.
The output that is usually printed into the build log dialog is sent to stdout in this case. You can use this tool to build setups automatically directly out of your development environment without starting the GkSetup GUI.