From Genesis II Wiki

Main: Changing Config File Locations

You can now set the desired location to read your client/container configuration files (by base directory: the filenames cannot be changed) in two ways:

By system environment variable, e.g.:

   set GENII_CONFIG_DIR="/temp"

By command-line option, e.g.:

   runContainer.bat --config-dir=/temp
   grid --config-dir=/temp shell

As a reminder, you can set the desired location of your state (both client-session and container-db state) using the "GENII_USER_DIR" system environment variable.